Category: 8. Health

  • Cardiologist reveals ‘most underrated secret to heart health’ that helps lower blood pressure and heart rate naturally

    Cardiologist reveals ‘most underrated secret to heart health’ that helps lower blood pressure and heart rate naturally

    Sleep plays a crucial role in maintaining heart health. In an interview with HT Lifestyle, Dr Vijay D’silva, medical director of White Lotus International Hospital and clinical advisor of Heartnet India, explained how sleep helps naturally decrease blood pressure and heart rate, giving the heart a chance to rest and repair. Also read | Sleep plays a crucial role in maintaining heart health

    The state of sleep acts like a reset button for the cardiovascular system. The blood pressure naturally decreases, the heart rate slows down, and the body starts to repair any kind of injuries, stress, and muscles, a cardiologist explained. (Freepik)

    Sharing that research suggests sleeping less than seven hours a night can increase the risk of heart disease, he said, “The National Library of Medicine (NIH) reports that sleeping just one hour less than 7 hours increases heart disease risk by 11 percent. Sleep is an underrated aspect of heart health. It not only resets the body but also keeps the heart strong and healthy. Yet, Sleep is ignored as optional, compromising for work, social media, and late-night binge-watching.”

    How sleep benefits heart health

    Explaining how sleep resets the cardiovascular system, he said, “The state of sleep acts like a reset button for the cardiovascular system. The blood pressure naturally decreases, the heart rate slows down, and the body starts to repair any kind of injuries, stress, and muscles.”

    Dr D’silva added that sleeping relieves the human body from the exhaustion and tension experienced all day. “Good sleep also helps increase melatonin, cortisol, and antidiuretic hormone (ADH) levels, which are responsible for protecting blood vessels from oxidative stress, reducing hypertension, controlling excessive stress on the heart, and protecting the heart from any kind of risk in the long run,” he said.

    What are the risks of poor sleep?

    Lack of sleep can lead to increased blood pressure, straining the cardiovascular system. According to Dr D’silva, “Sleep is one of the basic needs for the human body. The lack of sleep affects the body physically and mentally, making the body tired and sleepy and adversely affecting heart health.”

    The doctor explained that poor sleep can disrupt hunger hormones, leading to weight gain and obesity, and affect insulin release, increasing the risk of type 2 diabetes. Here’s how:

    ⦿ Blood pressure

    “Lack of sleep can shift hormone levels, leading to increased blood pressure. This can produce stress and strain on the cardiovascular system,” Dr D’silva said.

    ⦿ Obesity

    He added, “Insufficient sleep can disturb the hormones that regulate hunger, which can lead to conditions like weight gain and obesity. Obesity is a big contributor to heart disease as it can lead to conditions like high cholesterol.”

    ⦿ Diabetes

    Dr D’silva said, “Poor sleep affects the human body’s ability to release the insulin hormone, which increases the chances of developing type 2 diabetes. A maintained sleep cycle can preserve the heart young and healthy.”

    Good sleep also helps increase melatonin, cortisol, and antidiuretic hormone (ADH) levels, which are responsible for protecting blood vessels from oxidative stress, reducing hypertension, controlling excessive stress on the heart, the doctor shared.(Pexels)
    Good sleep also helps increase melatonin, cortisol, and antidiuretic hormone (ADH) levels, which are responsible for protecting blood vessels from oxidative stress, reducing hypertension, controlling excessive stress on the heart, the doctor shared.(Pexels)

    10 tips for better sleep

    Dr D’silva said proper sleep stimulates the required hormones that regulate growth hormones and repair tissues – these are an essential part of better heart health. According to Dr D’silva, you should go to bed and wake up at the same time every day, include fruits, green vegetables, and protein-rich foods in your diet, limit screen time, avoid heavy meals, as well as plan your tasks, and try relaxation techniques to reduce stress, among other things.

    Here are some tips from Dr D’silva for deep sleep:

    1. Stick to a regular sleep schedule, go to sleep and wake up at the same time every day.

    2. Include healthy foods like fruits, green vegetables, and protein-rich foods in your diet. Avoid alcohol, caffeine, smoking, and high fats or sugar.

    3. Don’t eat heavy meals before bed for better digestion and restorative sleep.

    4. Limit screen time at least 1 hour before bed time.

    5. Don’t overhydrate before bed.

    6. Try to get proper sunlight during the day. Go for a morning or a launch walk.

    7. Exercise daily for better blood circulation. Try not to exercise a few hours before sleeping.

    8. Plan the next day’s tasks to reduce stress.

    8. Treat prostate problems to support better, uninterrupted sleep.

    10. Keep your bedroom cool, dark and quiet, and make a comfortable and clean bed.

    When to consult a doctor

    If you struggle with sleep or experience issues like depression, consult a doctor for proper diagnosis and treatment. Dr D’silva said, “A constant struggle for sleep could be a sign of a sleep disorder. It can cause depression and other mental health issues. If you have doubts about symptoms, see a doctor.”

    He added Teleconsultation can be a convenient option to discuss your symptoms and monitor your heart health, and said, “Teleconsultation facilities make it effortless and easy to connect with doctors. Monitoring heart health through blood pressure checks and ECG screening helps. Consulting a doctor beforehand can prevent any serious heart risks in the future.”

    Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.

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  • DR Congo suffers new Ebola outbreak

    DR Congo suffers new Ebola outbreak

    An Ebola outbreak in the Democratic Republic of the Congo has killed at least 15 people, further straining health services in the country.

    The virus, which is spread by bodily fluids, is endemic in animal populations in Central and West Africa, and there are periodic outbreaks. The largest, originating in Guinea in 2014, killed over 11,000 people, and another in 2018 killed a further 2,000; other flare-ups have died away more quickly.

    The DRC is already struggling — its healthcare system is weak, and there is a civil war raging in the east. Approximately 50% of people infected with Ebola die of the extensive hemorrhaging the disease causes, although that figure varies widely depending on the strain and the available medical care.

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  • Ultrasound-Guided Stellate Ganglion Block with Cervicotemporal Myofasc

    Ultrasound-Guided Stellate Ganglion Block with Cervicotemporal Myofasc

    Zhenzhen Li,1,* Lifeng Wang,1,* Peilin Cong,2,* Siyu Chen,3 Jingxuan Wang,4 He Zhang,1 Juan Zhao,1 Guiting Li,1 Fengmei Jiao,1 Linyan Li,1 Ruitao Wang,1 Qianqian Wu,2 Moxuan Gong,5 Zheping Chen,2 Yaozhu Wang1

    1Anesthesia Insomnia Clinic, Department of Anesthesiology Outpatient Clinic, Shandong Second Provincial General Hospital, Jinan, 250022, People’s Republic of China; 2Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Translational Research Institute of Brain and Brain-Like Intelligence, Clinical Research Center for Anesthesiology and Perioperative Medicine, Department of Anesthesiology and Perioperative Medicine, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200434, People’s Republic of China; 3Department of Science and Education, Shandong Second Provincial General Hospital, Jinan, 250022, People’s Republic of China; 4Department of Pain, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250011, People’s Republic of China; 5Department of Pain, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200041, People’s Republic of China

    Correspondence: Zheping Chen, Department of Anesthesiology and Perioperative Medicine, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, 1279 Sanmen Road, Hongkou District, Shanghai, 200434, People’s Republic of China, +86-17856902226, Email [email protected] Yaozhu Wang, Anesthesia Insomnia Clinic, Department of Anesthesiology Outpatient Clinic, Shandong Second Provincial General Hospital, No. 4, Duanxing West Road, Huaiyin District, Jinan, 250022, People’s Republic of China, +86-18353172500, Email [email protected]

    Purpose: Insomnia is a prevalent sleep-wake disturbance that significantly impairs the quality of life and adversely affects physical and mental health. This study aimed to evaluate the clinical efficacy of ultrasound-guided stellate ganglion block (SGB) combined with acupuncture at cervicotemporal myofascial trigger points (MTrPs) in patients with insomnia accompanied by anxiety and depression.
    Patients and Methods: This retrospective study included 42 patients diagnosed with insomnia and comorbid anxiety and depression who were treated at the Anesthesia and Sleep Clinic of the Shandong Second Provincial General Hospital between November 2024 and April 2025. All patients received ultrasound-guided SGB combined with acupuncture at cervicotemporal MTrPs. Treatment efficacy was assessed by comparing Pittsburgh Sleep Quality Index (PSQI), Hamilton Anxiety Scale (HAMA), and Hamilton Depression Scale (HAMD) scores before treatment initiation and four weeks after completion of the intervention.
    Results: Compared with baseline, post-treatment PSQI scores (5.00 ± 2.84 versus 17.10 ± 2.61; mean difference, -12.10; 95% Cl, -12.91 to -11.28; P < 0.001), HAMA scores (5.05 ± 2.80 versus 19.00 ± 4.23; mean difference, -13.95; 95% Cl, -15.0912.82 to -12.82; P < 0.001), and HAMD scores (3.41 ± 2.68 versus 15.76 ± 4.43; mean difference, -12.36; 95% Cl, -13.56 to -11.15; P < 0.001) were all significantly reduced after four weeks of therapy.
    Conclusion: The preliminary study suggests that ultrasound-guided SGB combined with acupuncture at the cervicotemporal MTrPs is an effective, comprehensive intervention for insomnia with comorbid anxiety and depression. The benefits may result from synergistic mechanisms involving autonomic balance regulation, suppression of excessive sympathetic activity, reduction of myofascial tension, and modulation of the sleep-wake cycle. These findings warrant further clinical application and investigation.

    Plain Language Summary: Sleep problems, such as insomnia, affect many people and can harm both mental and physical health. When insomnia occurs alongside anxiety or depression, the effects can be even more severe. This study examined a combined treatment for people with insomnia, anxiety, and depression. The approach used two techniques. The first was SGB, and the second was acupuncture at cervicotemporal MTrPs. We reviewed the records of 42 patients who received both treatments over four weeks. Before and after treatment, patients completed questionnaires measuring sleep quality, anxiety, and depression. The results showed significant improvements in sleep quality, with anxiety and depression symptoms becoming much milder. Anxiety showed the greatest improvement of the three measures. No patients experienced serious side effects. These findings suggest that combining SGB with acupuncture at MTrPs may help break the cycle in which poor sleep and emotional distress reinforce each other. Although these results are encouraging, the study was small and short-term. Larger, longer studies are needed to confirm these benefits and determine how long they last.

    Keywords: autonomic nervous system modulation, sleep quality, insomnia, emotional disorders, acupuncture therapy, sympathetic blockade

    Introduction

    Insomnia disorder, a common sleep-wake disturbance, markedly impairs quality of life and adversely affects both physical and mental well-being worldwide.1–3 According to the World Health Organization (WHO), approximately 30% to 50% of adults report some degree of sleep disturbance, with 10% to 20% meeting diagnostic criteria for insomnia disorder.1,2,4 Notably, anxiety and depressive disorders frequently co-occur in individuals with insomnia,5–8 exacerbating symptoms such as prolonged sleep latency, frequent nocturnal awakenings, and early morning arousal. This bidirectional relationship creates a self-perpetuating cycle that worsens sleep and mood disturbances and increases the risk of severe outcomes, including suicidal behavior and cardiovascular diseases.9,10 These interrelated conditions impose a significant burden on affected individuals, their families, and broader society.

    Pharmacotherapy has traditionally been the primary approach for managing insomnia disorders accompanied by anxiety and depression. Benzodiazepines and non-benzodiazepine hypnotics are commonly prescribed to relieve insomnia symptoms. In contrast, selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs) are often used to address comorbid anxiety and depressive disorders.11–13 However, these medications have several limitations. Prolonged benzodiazepine use may lead to dependence, tolerance, and adverse effects such as residual sedation and cognitive impairment.14 Although non-benzodiazepines have a lower potential for dependence, they are still associated with adverse effects, including dizziness and fatigue.15 Currently, cognitive behavioral therapy for insomnia (CBT-I) and pharmacotherapy are the internationally recognized standard treatments for insomnia with coexisting anxiety and depression.16–19 Nevertheless, challenges such as limited accessibility, poor adherence, and the risk of side effects often hinder their ability to provide safe, effective, and sustained improvement in affected patients.16,20,21

    With advancing research into the pathogenesis of insomnia disorder accompanied by anxiety and depression, increasing attention has been given to the pivotal roles of nervous system dysregulation and musculoskeletal dysfunction.22 The stellate ganglion, a key component of the cervical sympathetic chain, modulates sympathetic outflow to the head, neck, and upper limbs, and exerts broad regulatory influences on the cardiovascular, respiratory, endocrine, and central nervous systems.23,24 Ultrasound-guided stellate ganglion block (SGB) enables precise delivery of local anesthetic (LA) to the periganglionic region, thereby interrupting sympathetic transmission, restoring autonomic balance, and improving sleep quality as well as alleviating anxiety and depression symptoms.25 A growing body of evidence supports the therapeutic potential of SGB in the management of insomnia, anxiety, and depressive disorders.26,27

    Acupuncture, a cornerstone of traditional Chinese medicine (TCM), has shown distinct therapeutic benefits in treating sleep disturbances and emotional disorders. Myofascial trigger points (MTrPs) in the cervical and temporal regions are hyperirritable loci within skeletal muscle that have been implicated in the pathophysiology of insomnia, anxiety, and depression.28,29 Targeted acupuncture at MTrPs can relieve pain, improve sleep, and stabilize mood through multiple mechanisms, including modulation of muscle tension, enhancement of local microcirculation, activation of endogenous analgesic pathways, and regulation of the neuro-endocrine-immune axis.30,31 Several studies have indicated that the number of active MTrPs in patients with chronic low back pain or migraine correlates significantly with sleep quality, and targeted MTrP interventions can improve sleep quality and reduce dependence on hypnotic medications.29,32,33

    Although both SGB and MTrP-targeted acupuncture have sound theoretical foundations and empirical support for treating insomnia with comorbid anxiety and depression, evidence on their combined use is limited. SGB primarily exerts central autonomic regulation, whereas acupuncture at the cervicotemporal MTrPs provides localized relief of peripheral myofascial pain. The combination of these two modalities allows for concurrent modulation of the neuroendocrine system and somatic musculature, disrupting the pathological cycle in which insomnia, anxiety, and depression reinforce each other. Therefore, this retrospective study aimed to evaluate the efficacy and safety of combining ultrasound-guided SGB with cervicotemporal MTrPs acupuncture in patients with insomnia and comorbid anxiety or depression. The findings may offer novel insights and provide evidence-based guidance for future clinical practice.

    Material and Methods

    Study Design

    This single-center, retrospective observational study was conducted at the Shandong Second Provincial General Hospital. All enrolled patients received a combined treatment regimen of ultrasound-guided SGB and acupuncture at the cervicotemporal MTrPs, which represents the standard treatment protocol for insomnia at our institution. Primary data were obtained from patients’ medical records. Demographic and clinical information, including age, sex, date of visit, chief complaint, current illness history, and past medical history, was systematically extracted.

    The study protocol was reviewed and approved by the Ethics Committee of the Shandong Second Provincial General Hospital (approval No.2025–028-01; April 28, 2025) and conducted in accordance with applicable laws, regulations, and institutional guidelines. Informed consent for participation from participants or the participants’ legal guardians/next of kin was waived in compliance with national legislation and institutional requirements.

    Participants

    In this retrospective observational study, 58 patients diagnosed with insomnia disorder, anxiety, and depression were initially identified from the medical records of the Anesthesia Insomnia Clinic, Department of Anesthesiology Outpatient Clinic at the Shandong Second Provincial General Hospital between November 2024 and April 2025. Sixteen patients were excluded due to failure to meet the inclusion criteria. The remaining 42 patients were enrolled in the study and completed the entire treatment course. A follow-up assessment was performed four weeks after the intervention to evaluate treatment outcomes (Figure 1).

    Figure 1 Flow diagram of the study.

    Abbreviations: SGB, stellate ganglion block; MTrPs, myofascial trigger points.

    Inclusion criteria were as follows: (1) diagnosis of insomnia disorder according to the “Diagnostic and Statistical Manual of Mental Disorders” published by the American Psychiatric Association, and characterized by difficulty falling asleep (≥ 30 min), light sleep, poor sleep quality, frequent nocturnal awakenings (> 2 times per night), early morning awakening, difficulty returning to sleep after awakening, daytime fatigue or functional impairment, total daily sleep time < 6 hours, and symptom duration ≥ 30 days;34 (2) age between 18 and 75 years; (3) Pittsburgh Sleep Quality Index (PSQI) score > 10, indicating moderate to severe sleep disturbance; (4) comorbid depressive and anxiety disorders, defined as Hamilton Depression Rating Scale (HAMD) score > 8 and Hamilton Anxiety Rating Scale (HAMA) score > 8; and (5) no use of other sleep-affecting medications within two weeks before treatment initiation.

    The exclusion criteria were as follows: (1) heart, liver, or kidney insufficiency or electrolyte disturbance; (2) contraindications to SGB, including coagulopathy and local or systemic infection. Coagulopathy was defined as prothrombin time or activated partial thromboplastin time exceeding the upper limit of normal, an international normalized ratio ≥ 1.4, or platelet count < 80×109 L−1;35 (3) infection or neoplastic lesions at the acupuncture site; (4) inability to cooperate with treatment procedures or complete follow-up assessments; and (5) severe cognitive impairment or language difficulties.

    Clinical Treatment

    All treatments were performed at Anesthesia Insomnia Clinic, Department of Anesthesiology Outpatient Clinic, Shandong Second Provincial General Hospital by a single attending physician (YZW), who did not participate in subsequent follow-up assessments.

    Acupuncture at Cervicotemporal MTrPs

    Before the procedure, the location of the MTrPs was identified and marked using a surgical skin marker. The skin overlying the trigger points in the cervical and temporal regions was disinfected with iodophor solution. Anatomical landmarks were localized, including the anterior tubercles of the C2 and C4 transverse processes of the scalenus anterior muscle, the medial border of the mid-portion of the sternocleidomastoid muscle, trigger points in the upper trapezius, and trigger points in the temporalis muscle (Figure 2A–C). These sites typically demonstrated tenderness on palpation and contained a palpable taut band or a discrete, movable nodule.

    Figure 2 Ultrasound-guided SGB combined with acupuncture at cervicotemporal MTrPs. (A) Surface localization of cervicotemporal MTrPs; (B) Surface localization of cervical MTrPs; (C) Surface localization of temporal MTrPs; (D) Needling of cervical MTrPs; (E) Needling of temporal MTrPs; (F) Ultrasound-guided SGB; (G) Sonographic illustration of SGB; (H) Post-SGB injection.

    Abbreviations: SGB, stellate ganglion block; MTrPs, myofascial trigger points; SCM, sternocleidomastoid muscle; LCo, longus colli; LCap, longus capitis; CA, carotid artery.

    A disposable, sterile acupuncture needle (0.35 × 50 mm, CR-3550, Cloud & Dragon Medical Devices Co., Ltd., Wujiang) was inserted perpendicularly into each trigger point. The needle was manipulated in multiple directions until a local twitch response was elicited, followed by rapid puncture repeated 7–10 times at each site. After needle removal, gentle pressure was applied to the puncture site for approximately 30 seconds to prevent bleeding (Figure 2D–E). Treatments were administered once weekly for three consecutive sessions.

    Ultrasound-Guided SGB

    Patients were positioned supine with the head rotated toward the contralateral side, mouth slightly open, and anterior neck muscles relaxed. Standard monitoring, including oxygen supplementation and continuous electrocardiographic (ECG) surveillance, was initiated. A high-frequency linear ultrasound transducer (3–13 MHz, L12-4S; M9 Premium Ultrasound System, Mindray Bio-Medical Electronics Co., Ltd., Shenzhen) was placed in the trachea-parallel supraclavicular plane and moved laterally from the medial border of the sternocleidomastoid (SCM) muscle.

    Ultrasound imaging identified the transverse process of the C6 vertebra, including its anterior and posterior tubercles. The probe was then shifted caudally toward the C7 level until the anterior tubercle of the C6 transverse process was no longer visible. Key anatomical structures, including the SCM, C6 nerve root, carotid artery (CA), longus colli (LCo), and longus capitis (LCap) muscles, were visualized (Figure 2F–G). Color doppler was used to assess vascular anatomy along the intended needle trajectory.

    Under in-plane ultrasound guidance, the needle was advanced into the space between the C6 nerve root and the internal jugular vein, with careful avoidance of critical structures such as the internal carotid artery and brachial plexus. The needle tip was positioned at the surface of the LCo beneath its anterior fascia. After confirming the absence of blood or cerebrospinal fluid via negative aspiration, 4 mL of 1% lidocaine was injected (Figure 2H). The needle was then withdrawn, and gentle pressure was applied to the puncture site to prevent bleeding. Patients were monitored for the appearance of Horner syndrome and other potential complications. The SGB procedure was performed once daily, alternating between sides, for a total of eight consecutive sessions.

    All patients received treatment according to the standardized institutional protocol. SGB once daily (alternating bilaterally, eight total sessions) and MTrPs needling once weekly (three total sessions). No patient had taken medications or received any other sleep-affecting interventions in the two weeks before treatment initiation, and none received additional treatments or pharmacological agents during the 4-week treatment period (Figure 3).

    Figure 3 Treatment timeline for ultrasound-guided SGB combined with acupuncture at cervicotemporal MTrPs.

    Abbreviations: SGB, stellate ganglion block; MTrPs, myofascial trigger points; PSQI, Pittsburgh Sleep Quality Index; HAMA, Hamilton Anxiety Rating Scale; HAMD, Hamilton Depression Rating Scale.

    Notes: Created in BioRender. Chen, Z (2025) https://BioRender.com/i8zdywz.

    Clinical Assessment

    All patients who completed the treatment course underwent evaluation of sleep quality, anxiety, and depression in the morning before treatment initiation (8:00–10:00) and again after completion of the 4-week treatment period (Figure 3). Follow-up assessments were performed by the same anesthesiologist.

    Sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI), which yields a total score from 0 to 21, with higher scores indicating poorer sleep. Anxiety was evaluated using the 14-item Hamilton Anxiety Rating Scale (HAMA), scored on a 5-point scale (0–4) per item; total scores of 0–7 indicate minimal or no anxiety, with higher scores reflecting greater severity. Depression was assessed with the 24-item Hamilton Depression Rating Scale (HAMD), in which most items are scored on a 5-point scale (0–4) and some on a 3-point scale (0–2); total scores < 8 indicate minimal or no depressive symptoms, with higher scores corresponding to more severe depression.

    Statistical Analysis

    The normality of continuous variables was assessed using the Shapiro–Wilk test. Data are expressed as counts and percentages, means and standard deviations (SD), or medians with interquartile ranges (IQR), as appropriate. For normally distributed data, comparisons before and after treatment were conducted using the paired-sample t-test; for non-normally distributed data, the Wilcoxon signed-rank test was applied. To visualize the distribution of post-treatment score changes (∆PSQI, ∆HAMA, ∆HAMD), a composite plot integrating scatter (raw data), violin (density), and boxplot (quantiles) elements was generated using R version 4.2 (R Foundation for Statistical Computing) with the ggplot2 package. All P values were two-sided, and P < 0.05 was considered statistically significant. All statistical analyses were performed using R version 4.2.

    Results

    A total of 42 patients underwent treatment with ultrasound-guided SGB combined with acupuncture at cervicotemporal MTrPs. Patient ages ranged from 29 to 75 years (mean ± SD, 50.07 ± 14.43). Demographic and clinical characteristics, including age, American Society of Anesthesiologists (ASA) physical status classification, height, weight, body mass index (BMI), and medical history, are summarized in Table 1.

    Table 1 Demographics and Baseline Characteristics

    Compared with baseline, post-treatment scores were significantly reduced for all three outcome measures: the PSQI scores (5.00 ± 2.84 versus 17.10 ± 2.61; mean difference, -12.10; 95% Cl, -12.91 to -11.28; P < 0.001); the HAMA scores (5.05 ± 2.80 versus 19.00 ± 4.23; mean difference, -13.95; 95% Cl, -15.09 to -12.82; P < 0.001); and HAMD scores (3.41 ± 2.68 versus 15.76 ± 4.43; mean difference, -12.36; 95% Cl, -13.56 to -11.15; P < 0.001) (Table 2 and Figure 4A–C).

    Table 2 Pre- and Post- Treatment Comparison of PSQI, HAMA, and HAMD Scores

    Figure 4 Pre- and post-treatment comparison of (A) PSQI, (B) HAMA, and (C) HAMD scores.

    Abbreviations: PSQI, Pittsburgh Sleep Quality Index; HAMA, Hamilton Anxiety Rating Scale; HAMD, Hamilton Depression Rating Scale.

    Notes: ***P < 0.001 vs pre-treatment.

    Figure 5 illustrates the distribution of changes in sleep quality (ΔPSQI), anxiety (ΔHAMA), and depression (ΔHAMD) scores after treatment. Among these, ΔHAMA demonstrated the largest difference, indicating that the combined intervention had the most pronounced effect on alleviating anxiety symptoms.

    Figure 5 Distribution characteristics of changes in ΔPSQI, ΔHAMA, and ΔHAMD scores between pre-treatment and post-treatment.

    Abbreviations: PSQI, Pittsburgh Sleep Quality Index; HAMA, Hamilton Anxiety Rating Scale; HAMD, Hamilton Depression Rating Scale.

    No procedure-related complications, such as vagus nerve block, recurrent laryngeal nerve block, phrenic nerve block, cervical nerve block, bleeding, hematoma, or infection, were observed in any patient receiving SGB or cervicotemporal MTrPs acupuncture.

    Discussion

    Insomnia is a common clinical sleep disorder.36 Patients with chronic insomnia are at increased risk for both physical and psychological complications, particularly anxiety and depression.7,37–39 Conversely, psychiatric conditions such as depression and anxiety can disrupt sleep architecture, thereby triggering or exacerbating insomnia.39 Depressive symptoms are considered one of the most significant risk factors for insomnia, whereas anxiety is a known predictor for the onset of sleep disturbances. Therefore, effective treatment strategies should address both mood symptoms and sleep dysfunction to improve quality of life and restore social functioning. Although various therapeutic approaches are available for managing insomnia with coexisting emotional disturbances, monotherapy often demonstrates limited effectiveness in real-world clinical practice.

    In the present study, ultrasound-guided SGB combined with acupuncture at the cervicotemporal MTrPs significantly improved the PSQI, HAMA, and HAMD scores in patients with insomnia disorder accompanied by anxiety and depression. These findings suggest that combination therapy may produce synergistic benefits by simultaneously modulating autonomic nervous system activity, improving sleep quality, and alleviating emotional distress.

    From a neuroregulatory perspective, ultrasound-guided SGB directly targets the sympathetic chain, reducing excessive sympathetic activity in the head and neck, relieving intracranial vascular spasm. This restores sympathetic-parasympathetic balance, improves cerebral perfusion, and optimizes oxygen supply-demand, thereby enhancing sleep quality. SGB also modulates the hypothalamic-pituitary-adrenal (HPA) axis, lowering stress-related hormones such as adrenaline, noradrenaline, and cortisol.40 Additionally, it may regulate neurotransmitters, neuropeptide Y (NPY), 5-hydroxytryptamine (5-HT), and γ-aminobutyric acid (GABA), further influencing HPA axis activity.25 Overactivation of the stellate ganglion can cause tachycardia, hypertension, and endocrine disturbances, contributing to insomnia, anxiety, and depression. Haest et al41 reported SGB efficacy for insomnia in patients with breast cancer. By inhibiting pre- and postganglionic fibers, SGB modulates cardiovascular activity, glandular secretion, pain transmission, and muscular contraction, exerting therapeutic effects on emotional distress and sleep disorders.25 Preclinical studies demonstrate that SGB can alleviate anxiety and depression through mechanisms involving increased cerebral blood flow and inhibition of the HIF-1α/NLRP3 inflammatory signaling pathway, with concomitant improvements in sleep disturbances and cognitive decline.26,42,43 However, its benefit is limited as monotherapy.44

    MTrPs, also referred to as tender or trigger points, are hyperirritable nodules within taut skeletal muscle bands detectable by palpation.45 As an emerging therapy for insomnia, MTrPs therapy has demonstrated superior efficacy compared to pharmacologic agents without risk of dependence or residual side effects.28,32 Persistent muscle fiber contraction at MTrPs can compress supplying blood vessels and nerves, causing localized pain, restricted motion, and chronic fatigue.45 Acupuncture-mediated MTrPs inactivation relieves vascular compression, restores blood flow, and mechanical equilibrium, and thereby improves sleep quality. Autonomic imbalance often contributes to MTrP-related local and referred pain, exacerbated by sympathetic overactivity.46 Morikawa et al47 found that manual MTrP compression significantly enhances parasympathetic activity while simultaneously reducing sympathetic outflow tone and subjective pain perception, a phenomenon termed autonomic recalibration (AR). Acupuncture at MTrPs can activate sensory receptors that modulate autonomic function, reduce sympathetic vasoconstriction, increase cerebral oxygenation, and help regulate the sleep-wake cycle.48,49

    In this study, we evaluated the therapeutic effects of ultrasound-guided SGB combined with acupuncture at the cervicotemporal MTrPs in patients with insomnia and comorbid emotional disturbances. The intervention aimed to improve sleep and mood through synergistic neuroregulatory mechanisms. After four weeks of treatment, patients demonstrated significant improvements in sleep quality and marked reductions in anxiety and depression, with the most pronounced effect observed for anxiety. One plausible explanation for this is that insomnia-related anxiety acts as an acute stress response that is rapidly relieved when sleep quality improves. SGB primarily modulates central autonomic activity, whereas MTrPs acupuncture provides localized relief of peripheral myofascial pain. Their combination enables concurrent regulation of the neuroendocrine system and somatic musculature, interrupting the cycle in which insomnia, anxiety, and depression exacerbate one another. Acupuncture at the cervicotemporal MTrPs may further augment anti-anxiety and antidepressant effects via vagal nerve modulation, establishing a bidirectional neural regulatory mechanism alongside SGB. Based on these findings, we propose the “Reflex Arc Treatment Concept” (RATC), which applies the classical reflex arc model–receptor, afferent nerve, central nervous system, efferent nerve, effector–to this combined therapy. In this framework, MTrPs acupuncture targets the receptor components, while SGB influences the efferent pathway (Figure 6), offering a potential mechanistic explanation for the observed clinical efficacy.

    Figure 6 Reflex Arc Treatment Concept.

    Abbreviations: MTrPs, myofascial trigger points.

    This study has several limitations. First, as a retrospective observational study, the lack of a randomized controlled design may have introduced selection bias. Second, the relatively small sample size and absence of long-term follow-up limit the evaluation of sustained efficacy and recurrence rates. Outcomes were assessed only at 4 weeks post-intervention; thus, it remains unclear whether the improvements in the PSQI, HAMA, and HAMD scores persist over time or regress toward baseline. Third, the neurobiological mechanisms underlying the observed effects remain incompletely understood. Further investigation using advanced neuroimaging and physiological methods, such as functional magnetic resonance imaging (fMRI) and functional near-infrared spectroscopy (fNIRS), is warranted. Preliminary fNIRS findings from our group suggest that ultrasound-guided SGB combined with cervicotemporal MTrPs acupuncture may alleviate insomnia by reducing hyperarousal via enhanced prefrontal cortex excitability.50 Future research should include large-scale, multicenter, randomized controlled trials to validate the RATC and elucidate its mechanisms.

    Conclusion

    This preliminary study suggests that ultrasound-guided SGB combined with acupuncture at cervicotemporal MTrPs is an effective, comprehensive intervention for insomnia with comorbid anxiety and depression. The benefits may arise from synergistic mechanisms involving autonomic balance regulation, suppression of excessive sympathetic activity, reduction of myofascial tension, and modulation of the sleep-wake cycle. These findings warrant further clinical validation and mechanistic investigation.

    Abbreviations

    AR, Autonomic recalibration; ASA, American Society of Anesthesiologists; BMI, Body mass index; CA, Carotid artery; CBT-I, Cognitive behavioral therapy for insomnia; CI, Confidence interval; ECG, Electrocardiography/electrocardiogram; fMRI, Functional magnetic resonance imaging; fNIRS, Functional near-infrared spectroscopy; GABA, Gamma-aminobutyric acid; HAMD, Hamilton Depression Rating Scale; HAMA, Hamilton Anxiety Rating Scale; HIF-1α, Hypoxia-inducible factor 1-alpha; HPA, Hypothalamic–pituitary–adrenal; IQR, Interquartile range; LA, Local anesthetic; LCap, Longus capitis muscle; LCo, Longus colli muscle; MTrP, Myofascial trigger point; NPY, Neuropeptide Y; PSQI, Pittsburgh Sleep Quality Index; RATC, Reflex Arc Treatment Concept; SCM, Sternocleidomastoid muscle; SGB, Stellate ganglion block; SNRI, Serotonin–norepinephrine reuptake inhibitor; SSRI, Selective serotonin reuptake inhibitor; TCM, Traditional Chinese medicine.

    Data Sharing Statement

    The datasets used or analyzed in the current study are available from the corresponding author upon reasonable request.

    Ethics Approval and Informed Consent

    This study was approved by the Institutional Ethics Committee of the Shandong Second Provincial General Hospital (No.2025-028-01). The guidelines outlined in the Declaration of Helsinki were followed in this study. Written informed consent for participation from participants or the participants’ legal guardians/next of kin was waived in accordance with national legislation and institutional requirements.

    Consent to Publish

    Written informed consent was obtained from the patient for publication of images in Figure 2.

    Acknowledgments

    We thank biorender (www.biorender.com) for expert assistance in Figure 3. We would like to thank Editage (www.editage.cn) for English language editing. The authors thank all research assistants and patients for their time and effort in this study. The abstract of this study will be presented by Dr. Zheping Chen in the research poster session at the 18th World Sleep Congress (World Sleep 2025), held in Singapore from September 6-9, 2025.

    Author Contributions

    ZZL: Conceptualization; Methodology; Software; Writing–original draft; Writing–review & editing. LFW: Conceptualization; Methodology; Data curation; Formal analysis; Writing–original draft; Writing–review & editing. PLC: Software; Formal analysis; Writing–original draft. SYC: Investigation; Data curation; Writing–review & editing. JXW: Investigation; Methodology; Writing–review & editing. HZ: Investigation; Data curation; Writing–review & editing. JZ: Investigation; Data curation; Writing–review & editing. GTL: Investigation; Data curation; Writing–review & editing. FMJ: Investigation; Data curation; Writing–review & editing. LYL: Investigation; Resources; Writing–review & editing. RTW: Investigation; Data curation; Writing–review & editing. QQW: Methodology; Software; Writing–review & editing. MXG: Software; Writing–review & editing. ZPC: Conceptualization; Methodology; Software; Supervision; Project administration; Writing–original draft; Writing–review & editing. YZW: Conceptualization; Methodology; Software; Supervision; Project administration; Writing–review & editing. ZZL, LFW, and PLC are the first co-authors of this study. ZPC and YZW are corresponding authors.

    All authors made a significant contribution to the work reported, whether that is in the conception, study design, execution, acquisition of data, analysis, and interpretation, or in all these areas; took part in drafting, revising, or critically reviewing the article; gave final approval of the version to be published; agreed on the journal to which the article has been submitted; and agreed to be accountable for all aspects of the work.

    Funding

    Shandong Province medical health science and technology project (202318000292).

    Disclosure

    The authors declare that they have no competing financial interests or personal relationships that may have influenced the work reported in this study.

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  • Trinity welcomes ‘game-changing’ wearable brain scanner

    Trinity welcomes ‘game-changing’ wearable brain scanner

    More advanced and cheaper to run, the OPM-MEG is only one of 14 in the world and the only one in Ireland.

    A one-of-a-kind wearable brain scanner has just arrived in Trinity College Dublin (TCD), touted to be a “gamechanger” for researchers attempting to identify the earliest signs of life-changing conditions such as epilepsy, dementia or Attention-deficit hyperactivity disorder.

    The wearable, called the Optically Pumped Magnetometers Magnetoencephalography, or OPM-MEG for short, uses quantum technology to track brain networks in real time as they respond to different cognitive demands.

    One of only 14 such machines in the world, the OPM-MEG system is housed in a shielded room in Trinity College Institute of Neuroscience (TCIN) which eliminates external magnetic fields. This is the first time such a device has been set up in the country.

    Unlike other brain scanning techniques such as MRIs where participants are required to lie motionless while a machine scans their brain, the OPM-MEG uses a lightweight and adaptable helmet which allows participants to sit or even move around.

    This makes it possible to study brain activity while doing more typical tasks during the day or scan children and people with brain disorders.

    The MEG is a neuroimaging technique that measures brain activity by detecting magnetic fields produced by electrical currents in the brain. The system allows scientists to construct 3D images showing changes in brain activity that occur through time.

    However, conventional MEG scanners are large, heavy and do not allow for participant movement, making it difficult for them to stay still over long periods of time. They are also expensive to maintain due to their need for cryogenic cooling.

    The new OPM-MEG systems, however, are worn like a helmet. They adapt to any head size and allow participants to move freely during a scan. The new system also offers higher sensitivity and better spatial precision and do not require cooling, making them cheaper to run as well.

    The OPM-MEG scanner is “the most important breakthrough in human brain imaging in the last two decades” said Prof Redmond O’Connell, director of the new MEG facility at Trinity.

    “The new OPM-MEG system here in Trinity will provide scientists with unique information about the timing and location of brain activity which will deepen our understanding of how the brain works and advance our understanding of the origins of brain disorders. It’s a gamechanger for researcher[s] working on brain disorders and wider research on the human brain,” O’Connell said.

    For now, the scanner is only available for research use, but it is hoped that it will become available as a clinical diagnostic tool to improve treatment outcomes for patients. A team of scientists from Trinity, Beaumont Hospital and the National Children’s Hospital are working to have the OPM-MEG system recognised as a diagnostic and presurgical mapping tool by the HSE.

    “The launch of the new MEG facility is a major milestone for Trinity College Institute of Neuroscience which is this year celebrating its 25th birthday,” said Prof Sinéad Ryan, TCD’s dean of research.

    “TCIN has long been at the forefront of brain imaging research internationally and its role in pioneering new techniques and technologies continues with its early adoption of OPM-MEG.

    “This exciting new tool will further enhance TCIN’s mission to advance our knowledge of the human brain and mind, contributing to our university’s strategic commitment to intensify our research,” Ryan added.

    “The MEG scanning system will allow brain researchers in Trinity and Ireland to continue to push the frontiers of cognitive neuroscience and apply this knowledge to improve the quality of human health and welfare.”

    Don’t miss out on the knowledge you need to succeed. Sign up for the Daily Brief, Silicon Republic’s digest of need-to-know sci-tech news.

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  • Experts reveal air pollution is linked to devastating form of dementia

    Experts reveal air pollution is linked to devastating form of dementia

    Air pollution is associated with an increased risk of developing dementia, according to a new study.

    Fine particles in the air can contribute to devastating forms of the disease, the research suggests, by propagating toxic clumps of protein in the brain.

    Exposure to airborne particles makes it more likely to misfold into clumps, which can then destroy nerve cells in the brain. This is a common cause of Lewy body dementia, which researchers describe as a “devastating and increasingly prevalent neurodegenerative disorder”.

    It is the second most common form of the disease after Alzheimer’s.

    In light of the findings, scientists have called for a concerted effort to improve air quality by cutting emissions, improving wildlife management, and reducing wood burning in homes.

    In the UK, toxic air pollution is estimated to cause between 29,000 and 43,000 premature deaths every year (PA Wire)

    Dr Xiaobo Mao, neurologist at Johns Hopkins University and lead investigator of the study, said: “Unlike age or genetics, this is something we can change.”

    “The most direct implication is that clean air policies are brain health policies,” he told The Guardian.

    To draw their findings, researchers first analysed the hospital records of 56.5 million US Medicare patients, looking at those who were admitted between 2000 and 2014 with protein damage. By cross-referencing the symptom with the patients’ zip codes, they were able to estimate their long-term exposure to PM2.5 pollution – airborne particles smaller than 2.5 thousandths of a millimetre.

    They theorised that long-term exposure to the particles, which can be inhaled into the lungs, raised the risk of Lewy body dementia.

    Lewy bodies refer to the abnormal clumps that lead to the disease, which are made from a protein called alpha-synuclein. While the protein is essential for regulating brain function, it can misfold, meaning it assumes the wrong structure and is harmful.

    They can kill nerve cells and cause diseases by spreading through the brain.

    Pedestrians walk on an overpass amid haze from air pollution in Beijing in 2023 (AFP via Getty Images)

    Pedestrians walk on an overpass amid haze from air pollution in Beijing in 2023 (AFP via Getty Images)

    To confirm their findings, researchers tested their theory on mice by exposing them to PM2.5 pollution every other day for ten months. Some were normal mice, while others were genetically modified to prevent them from producing alpha-synuclein.

    The experiment saw nerve cells die off in the normal mice, leading to brain shrinkage and cognitive decline. Meanwhile, the genetically modified mice showed little change.

    Further research on mice showed that PM2.5 pollution was driving the formation of toxic clumps of alpha-synuclein that bore a resemblance to Lewy bodies in humans. These findings are considered compelling evidence despite being confirmed in mice.

    “Our findings have profound implications for prevention because they identify air pollution as a modifiable risk factor for Lewy body dementia,” said Dr Mao.

    “By lowering our collective exposure to air pollution, we can potentially reduce the risk of developing these devastating neurodegenerative conditions on a population-wide scale.”

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  • Why growing mosquito numbers are driving the spread of tropical diseases in Europe – The Irish Times

    Why growing mosquito numbers are driving the spread of tropical diseases in Europe – The Irish Times

    At first, the patient’s symptoms were a puzzle: swelling of the brain tissue and membranes as might be seen with meningitis, but without any sign of the bacteria and viruses that typically cause it.

    Medical staff at the hospital on the Italian island of Sardinia excluded potential causes one by one until they were left with something unexpected. It was West Nile virus, one of several formerly tropical diseases that have become increasingly established in Europe as climate change favours the spread of the mosquitoes that carry the illnesses with their bite.

    “It was practically unknown here,” recalls Dr Maria Valentina Marras of that first case in her province of Oristano in Sardinia, little more than a decade ago. “From then until now, every summer we have a West Nile emergency.”

    She now leads containment efforts as head of the department of hygiene and prevention in Oristano, a region of 147,000 people that, on the day we spoke, reported its 15th case of West Nile so far this year.

    The new patient was a 71-year-old man who presented at accident and emergency with the symptoms that have become familiar – high fever, confusion, neurological symptoms, encephalitis – which now trigger an automatic test for West Nile.

    The detected cases indicate a much larger outbreak in reality, as 80 per cent of those who are infected show no symptoms. About 20 per cent suffer a flu, and 1 per cent are hospitalised. Older people, with conditions such as diabetes, heart or respiratory trouble, or obesity are more susceptible to severe illness due to their weakened immune response.

    Each confirmed case triggers an immediate crackdown to contain the spread: the patient’s house is cordoned off, and fumigators move in with insecticides to treat the entire area around the home in a 200m radius. The disease does not spread from human to human, but only through infected mosquitos.

    Despite these efforts, the spread of the virus is proving difficult to contain.

    “This summer was a very hot summer, a terrible humid heat that started in June and is still going now in September,” Dr Marras says. “The mosquito found the ideal environment to reproduce, exponentially.”

    Italy has detected 430 locally-transmitted cases of West Nile virus and 27 deaths so far in 2025, according to national data.

    In the last week, France reported 71 new locally-acquired cases of Chikungunya, a virus that can cause chronic debilitating joint pain, bringing this summer’s record outbreak of a disease that originated in Tanzania to 227 cases across 30 clusters.

    Various Mediterranean countries have reported cases of the viral infection Dengue, which is usually associated with tropical and subtropical regions of the world.

    This summer’s record-breaking outbreaks of Chikungunya and West Nile virus represent a “new normal”, according to the European Centre for Disease Prevention and Control. It says climate change and increased international travel mean the tiger mosquito is established in 16 countries in Europe, and likely to spread further.

    “As the mosquito-borne disease landscape evolves, more people in Europe will be at risk in the future,” the ECDC’s Dr Céline Gossner said in a statement.

    With the new diseases, communities must learn to adjust. Information brochures sent to every house and pharmacy in the region of Oristano explain how West Nile virus spreads and how to prevent it. Never leave out bowls of water for pets overnight, as the mosquitos breed in the smallest amounts of stagnant water. Wear long sleeves and trousers in the evening, even if it’s hot. Avoid wearing dark clothing, which attracts them. Cover all windows with mosquito screens.

    As it is a region that attracts plenty of tourists, English-language information campaigns target visitors, too.

    To the local community facing the outbreak, the warnings and news reports are all a rather unpleasant reminder of a pandemic that seems very recent history.

    “The community is afraid of this disease,” Dr Marras said. “Like all the world, we had Covid in 2020, so people are very scared of this disease. Even though there isn’t human-to-human transmission.

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  • AI designs new antibiotics to take on drug-resistant superbugs

    AI designs new antibiotics to take on drug-resistant superbugs

    Penn engineers have built an AI model that creates new antibiotics – and early tests show some work as well as existing approved drugs.

    3D illustration of drug-resistant bacteria under a microscope, showing a close-up of a single bacterium with a digital circuit-like overlay symbolising artificial intelligence and biotechnology.


    The University of Pennsylvania has developed a generative artificial intelligence (AI) model capable of designing brand new antibiotics, marking what researchers say is a major step forward in the fight against drug-resistant bacteria.

    In a study published in Cell Biomaterials, engineers at Penn Engineering and colleagues across the university present AMP-Diffusion, a generative AI tool that designs antimicrobial peptides (AMPs) – short amino acid chains that kill bacteria. In animal trials, several of the AI-designed molecules worked as effectively as existing FDA-approved antibiotics and showed no detectable side effects.

    For decades, scientists have warned of the looming crisis of antibiotic resistance. New drugs have proved difficult and slow to develop, leaving health systems around the world struggling to keep up. Generative AI, best known for producing images and text, could offer a radically faster approach.

    Nature’s dataset is finite; with AI, we can design antibiotics evolution never tried.

    “Nature’s dataset is finite; with AI, we can design antibiotics evolution never tried,” says César de la Fuente, presidential associate professor at the University of Pennsylvania, who co-led the work.

    Pranam Chatterjee, assistant professor at Penn Engineering who began the project while at Duke University, adds: “We’re leveraging the same AI algorithms that generate images, but augmenting them to design potent new molecules.”

    From mammoths to microbes

    De la Fuente’s lab has long used AI to scour unconventional biological sources for antimicrobial properties, from the proteins of woolly mammoths to animal venoms and ancient microbes. Yet the rate at which resistance emerges has outstripped these discoveries. “Unfortunately, antibiotic resistance keeps increasing faster than we can discover new antibiotic candidates,” he says.

    Chatterjee’s group, meanwhile, has focused on using AI to design peptides for hard-to-treat diseases. Their collaboration was a natural match. “It seemed like a natural fit,” says Chatterjee. “Our lab knows how to design new molecules using AI and the de la Fuente Lab knows how to identify strong antibiotic candidates using AI.”

    Antibiotic resistance shown in petri dish.Antibiotic resistance shown in petri dish.

    Drug-resistant bacteria are on the rise worldwide, spreading faster than new antibiotics can be developed. The World Health Organization (WHO) calls it one of the biggest threats to global health. Credit: Saiful52/Shutterstock

    A diffusion model for medicine

    While large language models such as ChatGPT predict the next word in a sequence, diffusion models generate content by starting with random noise and progressively refining it into a coherent whole. This is the principle behind creative AI systems like DALL·E and Stable Diffusion.

    Instead of teaching the model the ABCs of biology, we started with a fluent speaker.

    AMP-Diffusion applies the same concept to biology. Instead of denoising pixels, it shapes amino acid sequences into plausible peptides. “It’s almost like adjusting the radio,” says de la Fuente. “You start with static and then eventually the melody emerges.”

    Unlike other teams that have tried diffusion models for antibiotics, Penn’s approach leans on ESM-2, a protein language model from Meta trained on hundreds of millions of sequences. By building on an existing ‘mental map’ of how proteins fit together, AMP-Diffusion generates candidates more quickly and with a higher chance of being biologically valid.

    “Instead of teaching the model the ABCs of biology, we started with a fluent speaker,” says Chatterjee. “That shortcut lets us focus on designing peptides with a real shot at becoming drugs.”

    From 50,000 ideas to two winners

    AMP-Diffusion generated around 50,000 peptide sequences. But testing even a fraction in the lab would be impossible. To narrow the field, the researchers turned to another AI tool, APEX 1.1, developed in de la Fuente’s lab. It ranked the candidates based on predicted bacteria-killing power, novelty and diversity. 

    It’s exciting to see that our AI-generated molecules actually worked. This shows that generative AI can help combat antibiotic resistance.

    From this, the team synthesised 46 peptides for laboratory and animal testing. In mouse models of skin infection, two molecules stood out – performing on par with levofloxacin and polymyxin B, well-established antibiotics used against resistant bacteria. Crucially, no harmful side effects were observed.

    “It’s exciting to see that our AI-generated molecules actually worked,” says Chatterjee. “This shows that generative AI can help combat antibiotic resistance.”

    What’s next

    The researchers see this as just the beginning. AMP-Diffusion could eventually be refined to design antibiotics for specific infections or tuned to prioritise molecules with particularly desirable drug-like properties. “We’ve shown the model works and now if we can steer it to enhance beneficial drug-like properties, we can make ready-to-go therapeutics,” says Chatterjee.

    For de la Fuente, the long-term ambition is radical speed. “Ultimately, our goal is to compress the antibiotic discovery timeline from years to days,” he says.

    With drug resistance now listed among the top global health threats by the World Health Organization, breakthroughs like this could prove transformative.

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  • H pylori Screening Shows No Overall Benefit After MI – Medscape

    1. H pylori Screening Shows No Overall Benefit After MI  Medscape
    2. H Pylori Screening After MI Shows No Bleeding Benefit  Conexiant
    3. HELP-MI SWEDEHEART: Routine H. Pylori Screening Doesn’t Lessen Bleeding After MI  TCTMD.com
    4. Select groups of myocardial infarction patients benefit from Helicobacter pylori screening  News-Medical
    5. H. pylori screening does not significantly reduce upper gastrointestinal bleeding after heart attack, trial finds  Medical Xpress

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  • ‘One and done’ dose of LSD keeps anxiety at bay

    ‘One and done’ dose of LSD keeps anxiety at bay

    A new study finds that a single dose of LSD can ease generalized anxiety disorder, or GAD, a disabling form of anxiety that affects about one in 10 people over the course of a year. Image: mikkelwilliam/iStockphoto/Getty Images

    A rigorous new study finds that a single dose of LSD can ease anxiety and depression for months.

    The study involved 198 adults with generalized anxiety disorder, or GAD, a disabling form of anxiety that affects about one in 10 people over the course of a year.

    Participants who got lower doses of LSD (25 or 50 micrograms) did no better than those who got a placebo. But people who received higher doses (100 or 200 micrograms) responded quickly, a team reports in the Journal of the American Medical Association.

    “By the next day, they were showing strong improvements,” says Dr. David Feifel of Kadima Neuropsyciatry Institute in San Diego, one of the 22 centers that participated in the study. “And those improvements held out all the way to the end of the study, which was 12 weeks.”

    But it’s unclear whether some of the improvement was related to non-drug factors like the sensory environment in which people were treated, says Robin Carhart-Harris, a psychedelics researcher at the University of California, San Francisco who was not involved in the study.

    “The safety looks good, the tolerability looks good,” he says, “but where is the depth of information about the way you delivered this product?”

    Carhart-Harris, like many scientists who study psychedelics, believes that successful treatment is more likely if a person has the right mindset when beginning a trip and if the trip occurs in a place with the right sensory environment.

    Not your everyday anxiety

    Generalized anxiety disorder involves extreme worry or dread that interferes with a person’s ability to function.

    “It’s characterized by continuous worry, inability to relax, and all the physical manifestations, racing heart rates and sweatiness,” Feifel says. It’s also frequently accompanied by depression.

    Current antidepressant and antianxiety drugs are inadequate for about half of people diagnosed with GAD.

    So 22 outpatient psychiatric research sites agreed to test a proprietary form of LSD called MM120, which comes from the company MindMed.

    The drug is not at all like Prozac or Zoloft, which are among the usual treatments for GAD.

    “This is something that has a very, very distinct subjective experience,” Feifel says, “what people might call a trip.”

    MM120, like other versions of LSD, can alter a person’s perceptions and cause them to see, hear, or feel things that aren’t there.

    In the study, participants were far more likely to improve if they received a dose of MM120 high enough to induce a psychedelic experience. The higher doses also were more likely to lift a person’s depression.

    Non-drug factors

    Psychedelic treatment often involves guides or therapists who help ensure that a patient’s psychedelic experience is safe and effective. In addition, treatment centers often provide rooms with soft lighting, a naturalistic decor, and music or other sensory stimulation.

    But in this study, it’s unclear whether these environmental factors played an important role in the treatment.

    The sessions were overseen by two “dosing session monitors,” who also provided an education session about the treatment. The sessions were conducted in a “private aesthetically pleasant room,” the researchers say, and participants were offered “standardized music and eyeshades.”

    All of these factors could have contributed to the outcome, Carhart-Harris says, but it’s hard to tell because they weren’t specified in the study protocol and could have varied greatly from one center to another.

    “To not say anything about music listening, for example, when it’s been present in virtually 100% of the trials that have been published to date on psychedelic therapy, is an obvious omission,” Carhart-Harris says.

    A psychedelic future

    The new research represents an emerging trend in psychedelic research: bigger, more rigorous studies that are more likely to be supported by a pharmaceutical company.

    Such studies are needed to get psychedelic drugs like LSD, MDMA and psilocybin approved by the Food and Drug Administration, Feifel says. And giving doctors access to approved psychedelics could “revolutionize treatment” of psychiatric conditions ranging from depression to PTSD and addiction.

    “Give it a couple of years and we’ll be seeing drugs like psilocybin [and] magic mushrooms as medicines,” Carhart-Harris says. “A whole mindset shift is going to happen around that.”

    The FDA seems open to that possibility. It has already given MM120 “breakthrough therapy” status, which is meant to speed up the evaluation of promising new drugs.

    MindMed, for its part, has already launched a pair of “phase 3” studies of MM120. The company expects to complete those trials in 2026.

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  • Plasma Proteins Help Predict Immunotherapy Success in Triple-Negative Breast Cancer

    Plasma Proteins Help Predict Immunotherapy Success in Triple-Negative Breast Cancer

    The new Plasma Immuno Prediction Score achieves 96% accuracy in forecasting TNBC outcomes, offering laboratories a powerful tool for precision oncology.

    For laboratory professionals, the latest findings in plasma proteomics underscore how the clinical laboratory is becoming central to guiding cancer treatment decisions. The discovery of blood-based protein signatures that can predict immunotherapy outcomes in triple-negative breast cancer (TNBC) demonstrates how lab-developed tests and biomarker assays can directly influence patient care, moving precision oncology forward.

    A news release explained that a team of researchers in China has identified a set of plasma proteins that can reliably predict whether patients with TNBC will respond to immunotherapy, potentially transforming treatment strategies for one of the most aggressive forms of breast cancer.

    The study, published July 4, 2025, in Cancer Biology & Medicine, analyzed blood samples from 195 TNBC patients. Using high-sensitivity assays, scientists at Fudan University Shanghai Cancer Center and the Shanghai Institute for Biomedical and Pharmaceutical Technologies tracked 92 immune-related proteins before, during, and after immunotherapy.

    They found that three proteins in particular—arginase 1 (ARG1), nitric oxide synthase 3 (NOS3), and CD28—were strongly linked to treatment outcomes. From this, the team developed a predictive model called the Plasma Immuno Prediction Score (PIPscore), which achieved nearly 86% accuracy in forecasting responses.

    “This study transforms how we approach TNBC immunotherapy,” said Yizhou Jiang, MD, co-corresponding author. “By translating complex plasma proteomics into a practical score, we’ve bridged the gap between research and clinical utility.”

    Breaking the Bottleneck in TNBC

    Triple-negative breast cancer accounts for about 15% of breast cancer cases worldwide and is notoriously difficult to treat because it lacks the hormonal and HER2 targets used in other subtypes. Immunotherapy has emerged as a promising option, but predicting which patients will benefit remains a challenge.

    Currently, clinicians rely on biomarkers like PD-L1 expression or tumor mutational burden. However, these markers often fail to capture the complexity of immune responses, leaving doctors without reliable tools to guide decisions. Tumor biopsies, another option, are invasive and impractical for frequent monitoring.

    Yizhou Jiang, MD, Fudan University Shanghai Cancer Center, Fudan University, said “Plasma proteomics provides a non-invasive window into systemic immunity. Our work shows that the blood can tell us as much, if not more, than the tumor itself about how a patient will respond.”

    How the Study Worked

    The research team analyzed dynamic changes in plasma proteins over the course of immunotherapy. Patients who responded to treatment showed sharp rises in immune-activating proteins such as CXCL9 and interferon-gamma (IFN-γ). Those who achieved a pathologic complete response (pCR)—meaning no detectable cancer remained after treatment—had higher levels of ARG1 and CD28, but lower levels of NOS3.

    According to the study, these proteins appear to regulate critical aspects of immune activation and tumor suppression. Elevated NOS3, for example, correlated with fewer CD8+ T cells in tumors, suggesting an immunosuppressive role. In contrast, ARG1’s role in arginine metabolism may boost T-cell function and strengthen immune attack on tumors.

    To integrate these findings, the researchers developed the PIPscore, a composite of six proteins including ARG1, NOS3, and IL-18. This model stratified patients into high- and low-response groups with impressive precision. The area under the curve (AUC)—a common measure of predictive performance—was 0.858, indicating strong accuracy.

    Perhaps most strikingly, the PIPscore predicted 12-month progression-free survival with 96% accuracy, highlighting its potential clinical value.

    Linking Blood to Tumor Biology

    To strengthen their conclusions, the team also used single-cell RNA sequencing to link blood protein signatures with changes in the tumor microenvironment. For example, patients with higher NOS3 levels showed reduced infiltration of CD8+ T cells into tumors, aligning blood-based findings with tissue-level biology.

    “This dual approach—measuring proteins in the blood and validating them against the tumor microenvironment—offers a holistic view of how immunotherapy works,” Jiang said. “It underscores that systemic immunity, not just local tumor factors, dictates treatment success.”

    Clinical Implications

    The potential benefits of this approach are wide-ranging. Oncologists could use the PIPscore to determine upfront whether a TNBC patient is likely to respond to immunotherapy, sparing non-responders from ineffective treatments, unnecessary side effects, and high costs. Because the test is blood-based, it could be repeated over time, allowing clinicians to adjust treatment plans in real time.

    “The PIPscore not only predicts response but also opens doors to targeting metabolic pathways like arginine deprivation to overcome resistance,” Jiang noted. “These findings underscore the importance of systemic immunity.”

    Beyond TNBC, the researchers believe the method could be applied to other cancers where immunotherapy outcomes are highly variable.

    In addition to plasma proteomics, the field of pharmacogenomics offers another layer of precision in cancer care by examining how genetic variations influence drug response.

    When combined with tools like the PIPscore, pharmacogenomic profiling could help oncologists tailor both immunotherapy and supportive treatments to individual patients. For laboratory professionals, this integration underscores the expanding role of molecular diagnostics in personalizing therapy—ensuring patients not only receive the right drug but also the right dosage based on their genetic and immune profiles.

    Next Steps

    The study’s authors acknowledge that further validation is needed before the PIPscore can enter routine clinical practice. Larger, multi-center trials will be necessary to confirm its reliability across diverse patient populations. Still, experts view the findings as a major step toward more precise cancer care.

    As immunotherapy adoption grows, laboratory professionals will be essential in validating, standardizing, and implementing predictive tools like the PIPscore in clinical practice. Their expertise in assay development, quality control, and biomarker interpretation ensures that discoveries at the research level can be reliably translated into real-world diagnostics, ultimately improving outcomes for patients with aggressive cancers like TNBC.

    —Janette Wider

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