Research
Electroconvulsive therapy combined with esketamine improved depression through PI3K/AKT/GLT-1 pathway.
Journal of affective disorders – January 01, 2025
Summary
A breakthrough in depression treatment reveals that combining electroconvulsive therapy with esketamine significantly improves symptoms by regulating brain glutamate levels. This powerful duo works by activating a specific protein pathway that helps clear excess glutamate - a key neurotransmitter linked to depression. The treatment showed rapid improvement in both clinical patients and lab studies, offering new hope for those with severe depression.
Abstract
Neuron excitotoxic damage induced by extracellular glutamate accumulation pathologically is one of the main mechanisms of depression. Glutamate tra...
Role of meditation on the essence of self in the psychological profile, quality of life and lifestyle - a comparative study.
Clinics (Sao Paulo, Brazil) – January 01, 2025
Summary
Regular meditation practice transforms more than just mental state - it reshapes entire lives. Experienced meditators showed significantly lower stress levels and higher resilience compared to non-meditators. They also demonstrated greater empathy and reported better quality of life across multiple measures. Their overall lifestyle choices were healthier, suggesting meditation's benefits extend far beyond the cushion into daily living habits and emotional well-being.
Abstract
Meditation has been shown to influence physical and psychological health and well-being, modulating stress response, resilience, emotional regulati...
Characteristics and mental health of psychedelic mushroom and multi-psychedelic users relative to non-psychedelic users in American adults, 2020-2021.
Frontiers in psychiatry – January 01, 2025
Summary
Americans who use psychedelic mushrooms and other psychedelics reported higher rates of anxiety and depression compared to non-users, according to recent population data. Among 6,869 adults surveyed, those who used psilocybin mushrooms alone or combined with other psychedelics showed lower mental health scores, even after accounting for pre-existing conditions. These findings highlight important patterns in mental health among psychedelic users.
Abstract
Few population-based studies have examined associations between psychedelic use and mental health outcomes. This work describes characteristics of ...
Contextual and experiential aspects of the psychedelic experience predicting improvement in subjective wellbeing: results from a Norwegian internet convenience sample.
Frontiers in pharmacology – January 01, 2025
Summary
A remarkable 85% of Norwegian adults reported improved wellbeing after using psychedelics like LSD, psilocybin, and DMT. Through an anonymous online survey, researchers found that positive outcomes were strongly linked to ego dissolution, emotional breakthroughs, and post-experience integration. Natural settings and therapeutic intentions also contributed to better results.
Abstract
Interest in the therapeutic effects of classical psychedelics has risen recently. However, little epidemiological knowledge exists about the use of...
Maternal-physiological parameters and prenatal mindfulness interventions - A scoping review.
Journal of education and health promotion – January 01, 2025
Summary
Mindfulness shows promising links to pregnant women's physiological health, according to a review of 6 studies. These investigations suggest mindfulness may positively influence parameters like cortisol levels and blood pressure, potentially impacting conditions such as pregnancy-induced hypertension. However, its effects on body mass index or gestational diabetes mellitus are less clear. With only a limited number of clinical trials identified from 777 initial records, comprehensive understanding of mindfulness's full physiological impact during pregnancy requires further extensive exploration.
Abstract
Pregnancy is a unique experience for every woman, but it is not always easy. A good health indicator in the country is reduced maternal mortality a...
Adjunctive Intranasal Esketamine for Comorbid Treatment-Resistant Depression with Suicidal Ideation in Patients Receiving Palliative Care at a Comprehensive Cancer Center: A Case Series.
Journal of palliative medicine – January 01, 2025
Summary
Cancer patients with severe depression found remarkable relief through innovative nasal spray treatment. In a groundbreaking application, esketamine helped three palliative care patients overcome treatment-resistant depression and suicidal thoughts. All participants showed significant mood improvements that lasted up to a year, with no major side effects. This offers new hope for cancer patients struggling with mental health.
Abstract
Background: The psychiatric needs of those with cancer and other advanced illnesses are becoming increasingly recognized. Ketamine is emerging as a...
Compassionate use of esketamine intranasal in patients with severe major depressive disorder resistant to the treatment.
Journal of psychopharmacology (Oxford, England) – January 01, 2025
Summary
A breakthrough treatment offers hope for severe depression patients who haven't responded to traditional medications. Intranasal esketamine, combined with psychotherapy, showed remarkable results in reducing depressive symptoms in patients with treatment-resistant depression. In a compassionate use program across nine medical centers, 71 patients experiencing significant functional impairment saw substantial improvement within six months, with best results achieved when medication was paired with therapy.
Abstract
Treatment-resistant depression (TRD) is defined as the failure of at least two antidepressants in adequate doses and timing during a major depressi...
A protocol for a scoping review of variations among psychedelic interventions for psychological suffering associated with the end-of-life.
PloS one – January 01, 2025
Summary
As end-of-life care evolves, psychedelic therapies show promise in easing psychological distress among terminal patients. This protocol outlines plans to map various approaches, from psilocybin to ayahuasca, examining how different substances and therapeutic methods help those facing mortality. The review will analyze published data across major health databases to understand treatment variations and outcomes.
Abstract
Psychedelic substances are increasingly recognized for their therapeutic potential to ease psychological suffering linked to end-of-life issues. Ho...
End-of-life experiences in patients: a scoping review of types, characteristics, and implications for the mind-brain relationship.
International review of psychiatry (Abingdon, England) – January 01, 2025
Summary
Dying patients often experience vivid end-of-life dreams and visions, or even unexpected moments of terminal lucidity, despite declining health. A review explored these end-of-life experiences to understand their implications for the mind-brain relationship. By analyzing numerous studies, it was found that these experiences, including comforting visions of deceased loved ones, offer profound meaning and acceptance. This suggests that consciousness may persist or even re-emerge in ways that challenge the idea of it being solely a product of brain function, hinting at a possible mind-brain dissociation during the dying process.
Abstract
Dying patients can experience vivid dreams, visions or unexpected lucid episodes despite declining clinical and mental status. This review examines...
Music as a collaborating actor: new insights into the nature and role of music in psychedelic-assisted psychotherapy.
Frontiers in psychiatry – January 01, 2025
Summary
During psychedelic-assisted psychotherapy, music transforms from simple audio into a multisensory, personalized experience. Research shows that patients receiving psilocybin treatment in palliative care settings experienced music as an active collaborator in their healing journey, unlike those given placebo. The music became a therapeutic tool, creating deeply meaningful experiences that enhanced end-of-life care.
Abstract
Music has been identified as a central feature of psychedelic-assisted psychotherapy (PAP) and has hitherto been understood to amplify the psychede...
Effects of Ayahuasca on Gratitude and Relationships with Nature: A Prospective, Naturalistic Study.
Journal of psychoactive drugs – January 01, 2025
Summary
People who experience awe and mystical states during ayahuasca ceremonies show lasting increases in gratitude and connection to nature. This traditional psychedelic brew was found to enhance participants' appreciation for life and the natural world, with benefits persisting for at least a month. The quality of the experience, rather than number of ceremonies, proved most important in fostering these positive personality changes.
Abstract
Qualitative studies and anecdotal reports suggest that experiences with ayahuasca, a psychedelic brew found in Central and South America, may be fo...
Feasibility of Closed-Loop TCI Based on New EEG Baseline in the Presence of Low Dose of Esketamine: A Randomized Controlled Equivalence Trial.
Drug design, development and therapy – January 01, 2025
Summary
Anesthesiologists can now maintain precise control over sedation levels even when using multiple drugs, thanks to innovative brain monitoring technology. A breakthrough automated system uses EEG signals to adjust anesthesia delivery in real-time. When combining traditional anesthetics with low-dose esketamine, this closed-loop controlled system successfully maintained optimal depth of anesthesia by adapting to a new baseline, reducing overall drug use while ensuring patient safety and comfort.
Abstract
This research aimed to quantify the impact of low dose of esketamine on BIS and validate the feasibility of closed-loop TCI system based on the new...
PCA ketamine-morphine versus PCA morphine as post-operative analgesia in colorectal surgery.
Journal of opioid management – January 01, 2025
Summary
Adding ketamine to morphine for pain control after colorectal surgery cuts morphine use in half while maintaining equal pain relief. This breakthrough finding shows how combining these medications helps patients recover with less reliance on opioids. Patients using the ketamine-morphine combo needed 50% less morphine over 48 hours, with no increase in side effects. They reported similar satisfaction levels and pain control as those using morphine alone.
Abstract
Ketamine has undergone a recent resurgence of interest as an opioid-sparing agent in pain management. The purpose of this study is to evaluate the ...
Neuron-Derived Extracellular Vesicles miRNA Profiles Identify Children Who Experience Adverse Events after Ketamine Administration for Procedural Sedation.
Clinical pharmacology and therapeutics – January 01, 2025
Summary
Scientists have discovered specific molecular markers that can predict which children may experience side effects from ketamine sedation. By analyzing tiny genetic molecules in blood samples from 50 children, researchers identified three key markers that accurately predict adverse reactions like vomiting and agitation. These findings could help doctors better prepare for and potentially prevent uncomfortable side effects, making medical procedures safer and more comfortable for young patients.
Abstract
Ketamine provides the highest safety profile among sedatives for procedural sedation and analgesia in the pediatric emergency setting. However, it ...
Inhibition of NMDA receptors and other ion channel types by membrane-associated drugs.
Frontiers in pharmacology – January 01, 2025
Summary
Common drugs like ketamine work in surprising ways - they can sneak through cell membranes to block brain receptors. This research reveals how these medications don't just work directly on NMDARs (key brain receptors), but can also accumulate in cell membranes before blocking channels. This hydrophobic pathway, called MCI, explains why drugs like memantine are effective at treating brain disorders while minimizing side effects.
Abstract
N-methyl-D-aspartate receptors (NMDARs) are ligand-gated ion channels present at most excitatory synapses in the brain that play essential roles in...
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Acute changes in serum iron concentrations in anesthetized healthy horses.
Veterinary anaesthesia and analgesia – January 01, 2025
Summary
During anesthesia, horses experience a dramatic drop in blood iron levels, with the most significant decrease occurring 24 hours after the procedure. In healthy horses monitored over time, serum iron dropped by nearly 60% a day after anesthesia, suggesting that the body's inflammatory response affects iron regulation. This finding helps veterinarians better interpret blood work in horses recovering from surgery, preventing potential misdiagnosis of inflammatory conditions.
Abstract
To determine if serum iron concentrations decrease acutely during and after general anesthesia in healthy horses. Prospective experimental study. A...
The Effect of Esketamine as an Adjuvant for Adductor Canal Block on Postoperative Pain in Patients Undergoing Arthroscopic Knee Surgery: A Randomized Controlled Trial.
Annali italiani di chirurgia – January 01, 2025
Summary
Adding esketamine to nerve blocks during knee surgery can significantly reduce post-surgery pain for up to 8 hours. New research shows that combining moderate doses of esketamine with standard nerve-blocking medication provides better pain control than traditional methods alone. While higher doses offered more pain relief, they led to increased drowsiness and slower recovery. The optimal dose was found to balance pain control with minimal side effects.
Abstract
To evaluate the efficacy of esketamine as an adjuvant for adductor canal block (ACB) in alleviating postoperative pain in patients undergoing arthr...
The effect of an intravenous analgesic pump with esketamine on postoperative pain and postpartum depression in women with cesarean section.
American journal of translational research – January 01, 2025
Summary
New pain management breakthrough offers hope for new mothers! Intravenous analgesia using esketamine during caesarean sections significantly reduces both postpartum pain and depression symptoms. Women receiving this treatment reported lower pain scores and showed fewer depressive symptoms in the crucial first week after delivery, while experiencing minimal side effects. The treatment also improved biological markers of recovery and stress response.
Abstract
This study aims to investigate the efficacy of an intravenous analgesic pump containing esketamine for postoperative pain relief and its impact on ...
Effect of Subanesthetic Dose of Esketamine on Liver Function Following Microvascular Reconstruction for Head and Neck Cancer: A Randomized Controlled Trial.
Drug design, development and therapy – January 01, 2025
Summary
A groundbreaking discovery shows that low-dose esketamine during surgery can protect liver function and enhance recovery. In a large randomized controlled trial, patients receiving esketamine showed significantly better liver health markers and reduced inflammation after major head and neck surgery. The treatment group experienced fewer complications, better recovery quality, and improved healing compared to those who received standard care.
Abstract
Abnormal liver function is common post-surgery and is linked to poor prognosis. We investigated whether intraoperative subanesthetic esketamine cou...
Effects of Esketamine Versus Remifentanil on Hemodynamics and Prognosis in Patients with Septic Shock Receiving Invasive Mechanical Ventilation: A Randomized Controlled Trial.
Drug design, development and therapy – January 01, 2025
Summary
In treating critically ill patients with septic shock, the choice of sedation can significantly impact recovery. New findings show esketamine requires less blood pressure support than traditional options. When combined with propofol, esketamine reduced the need for norepinephrine by 58% compared to remifentanil in patients on invasive mechanical ventilation, while maintaining similar safety and survival rates.
Abstract
Analgesics and sedatives may affect the hemodynamics of patients with septic shock and produce adverse reactions. The purpose of this study is to c...
Effect of subclinical esketamine on NLRP3 and cognitive dysfunction in elderly ischemic stroke patients.
Open medicine (Warsaw, Poland) – January 01, 2025
Summary
A promising breakthrough shows that low doses of esketamine may protect brain function in elderly stroke patients. When administered during treatment, this medication reduced inflammation markers and improved cognitive scores on standard mental tests (MMSE). The research tracked 120 patients, finding that those receiving esketamine showed better mental function and lower levels of inflammatory proteins, including NLRP3, after their procedures. This suggests a new way to prevent cognitive decline in stroke patients.
Abstract
This study investigates the effects of subclinical doses of esketamine on serum NLRP3 levels and early cognitive dysfunction in elderly ischemic st...
Psychedelic Treatment with Psilocybin: Addressing Medical Malpractice Risk and Physicians’ Concerns
The Journal of Law Medicine & Ethics – January 01, 2025
Summary
A major hurdle for integrating psilocybin treatment into Medicine is the significant risk of medical malpractice liability. Despite promising clinical trials for anxiety and depression, physicians face reluctance due to the hallucinogen's stigma. The absence of established medical standards, standardized training, and clear credentialing for administering psychedelics like psilocybin significantly heightens liability concerns for Psychiatry and Psychology professionals. This lack of defined practice guidelines contributes to potential malpractice claims, hindering psilocybin's therapeutic integration. Addressing these gaps is crucial for realizing its potential in Complementary and Alternative Medicine Studies.
Abstract
Abstract Psychedelic treatment with psilocybin is receiving increased attention following clinical trials showing it may help treat end-of-life anx...
Comparison of Esketamine/Propofol and Sufentanil/Propofol on Intraoperative Hypoxemia During Bronchoscopy: A Randomized Trial.
Drug design, development and therapy – January 01, 2025
Summary
During bronchoscopy procedures, low oxygen levels affect up to 67% of patients using traditional sedation methods. New research shows that combining esketamine with propofol reduces this risk significantly, dropping the occurrence of hypoxemia to just 27%. The study compared two sedation approaches in 66 patients, finding that the esketamine combination led to faster recovery times and better oxygen levels than the traditional sufentanil-propofol mix, with similar safety profiles.
Abstract
Propofol and sufentanil are the most commonly used anesthetics during bronchoscopy. Esketamine is an s-enantiomer of ketamine racemate and has both...
Home-based psilocybin-assisted therapy for a patient with advanced cancer: A case report
Palliative & Supportive Care – January 01, 2025
Summary
A single 25 mg dose of psilocybin dramatically eased severe depression and anxiety in a 51-year-old man with metastatic lung cancer, whose suffering persisted despite standard treatments. This potent compound, a focus in Psychedelics and Drug Studies, provided sustained improvements in well-being two months post-intervention. Delivered safely in a homecare setting, this form of Complementary and Alternative Medicine Studies offers a promising, long-lasting treatment for existential distress in palliative care. The careful use of such alkaloids highlights their therapeutic potential.
Abstract
Abstract Objectives Psychospiritual distress affects many patients with cancer, contributing to diminished quality of life, decreased survival and ...
Meditating musicians: investigating the experience of music students and professional musicians in a brief mindfulness course to address music performance anxiety.
Frontiers in psychology – January 01, 2025
Summary
Meditation is known to boost musicians' wellbeing and performance. New research explored how specific meditation types, including body-centered and affect-focused, impacted musicians. Twelve musicians shared their experiences after brief mindfulness courses. The findings reveal that even a four-week program can significantly enhance wellbeing, foster emotional balance, and mitigate music performance anxiety, positively transforming their music practice.
Abstract
Previous research shows that meditation practice helps reduce Music Performance Anxiety (MPA), positively impacting the musicians' wellbeing and pe...
Lateral habenula astroglia modulate the potentiating antidepressant-like effects of bright light stimulation in intractable depression.
Frontiers in pharmacology – January 01, 2025
Summary
Light therapy combined with traditional antidepressants shows promise for hard-to-treat depression. In a groundbreaking discovery using mice, researchers found that bright light exposure enhances antidepressant effects, including ketamine, through an unexpected pathway involving eye cells (rods) and brain astroglia. This offers hope for people with treatment-resistant depression.
Abstract
Beside image vision, light plays a pivotal role in regulating diverse non-visual functions, including affective behaviors. Recently, bright light s...
Cocaine and ketamine-induced paraspinal muscle compartment syndrome.
Turkish journal of emergency medicine – January 01, 2025
Summary
A rare but dangerous muscle condition can occur when cocaine and ketamine use leads to severe back pain and tissue damage. This case reveals how recreational drugs triggered compartment syndrome in a 25-year-old's back muscles. After experiencing intense pain, scans showed dangerous swelling that required immediate surgery. Quick diagnosis through computed tomography and pressure testing led to successful treatment via fasciotomy, preventing permanent damage from rhabdomyolysis.
Abstract
Lumbar paraspinal compartment syndrome is a rare pathology, with only 40 reported cases resulting from an increase in pressure within the muscle co...
The intersection of near-death experiences (NDEs) and traumatic brain injury (TBI): neurobiological, phenomenological, and creative implications.
Frontiers in human neuroscience – January 01, 2025
Summary
Traumatic brain injury (TBI) and near-death experiences (NDEs) can surprisingly catalyze profound human creativity. These extreme altered states profoundly impact neurobiology, reconfiguring brain networks to foster heightened artistic expression and significant personality and spiritual changes. Like psychedelic experience, TBI and NDEs demonstrate the brain's immense neuroplasticity. Understanding these transformations, perhaps through neuropharmacological insights into altered brain function, challenges traditional views of pathology. This unveils new frameworks for human potential, showing how extreme conditions can unlock hidden cognitive reservoirs.
Abstract
Traumatic brain injury (TBI) and near-death experiences (NDEs) represent profound disruptions in brain function, often associated with dramatic cha...
Case report: Significant lesion reduction and neural structural changes following ibogaine treatments for multiple sclerosis.
Frontiers in immunology – January 01, 2025
Summary
Remarkable neuroimaging revealed significant brain repair in two multiple sclerosis patients after ibogaine treatments. This psychedelic medicine led to substantial lesion reduction and signs of neuroregeneration, suggesting ibogaine and its metabolite noribogaine may promote neural healing and modulate circuits affected by MS. A promising new direction for treatment.
Abstract
Multiple sclerosis (MS) is a debilitating neurodegenerative disease characterized by demyelination and neuronal loss. Traditional therapies often f...
Ketamine Infusion as an Adjunct to Opioid Analgesia in Pediatric Patients with High-Risk Neuroblastoma Undergoing Treatment with Dinutuximab: Adverse Effects and Safety in a Non-ICU Setting.
Journal of pain research – January 01, 2025
Summary
Ketamine shows promise as a safe pain management option for children battling high-risk neuroblastoma. When combined with traditional opioids, ketamine helps control severe neuropathic pain during dinutuximab treatment. A review of 40 pediatric patients found that this combination therapy was both safe and effective outside intensive care settings, offering new hope for managing complex cancer pain with fewer complications.
Abstract
Anti-GD2 immunotherapy has improved outcomes for children with high-risk neuroblastoma (HRNBL). Dinutuximab promotes complement-mediated reaction a...
Impact of social determinants of health on esketamine nasal spray initiation among patients with treatment-resistant depression in the United States.
Journal of managed care & specialty pharmacy – January 01, 2025
Summary
Lower education and income levels reduce access to innovative depression treatments by 37%, according to healthcare data from over 250,000 Americans. Patients with treatment-resistant depression were tracked to analyze how social and economic factors influence their ability to receive esketamine nasal spray therapy. Income below $75,000 and education below bachelor's level significantly decreased treatment access, while gender gaps also emerged, with women less likely to receive care.
Abstract
Disparities in mental health care access and health outcomes based on sociodemographic factors in the United States have been extensively documente...
Out-of-body experiences: interpretations through the eyes of those who live them.
Frontiers in psychology – January 01, 2025
Summary
People who have out-of-body experiences often describe them as more vivid and real than everyday life. Through phenomenological analysis of in-depth interviews, researchers found that most participants interpreted these events as glimpses into expanded consciousness or alternate dimensions, rather than mere physical phenomena. Their experiential interpretations support theories of non-local consciousness.
Abstract
Out-of-body experiences (OBEs) are primarily characterized by the sensation of the self being located outside one's physical body. The complexity o...
Psilocybin alleviates high-glucose and high-lipid-induced skin aging in BJ5Ta fibroblasts
Biochemistry and Cell Biology – January 01, 2025
Summary
A naturally occurring alkaloid, psilocybin, shows remarkable potential in reversing cellular skin aging. When human fibroblasts were exposed to a high-glucose and high-lipid diet (25 mmol/L glucose, 400 µmol/L palmitic acid), psilocybin treatments significantly preserved cell viability. Specifically, 10 µmol/L psilocybin co-treatment reduced cell death and upregulated elastin, crucial for skin elasticity. Another dosage, 15 µmol/L, decreased inflammatory markers like IL-1β. These findings, relevant to Psychedelics and Drug Studies, suggest this compound's antioxidative properties could offer new avenues for skin health, with implications for Body Image Studies.
Abstract
Cellular aging, driven by oxidative stress, mitochondrial dysfunction, and inflammation, is exacerbated by a high-glucose and high-lipid (HGHL) die...
Modulation of the endocannabinoid system by (S)-ketamine in an animal model of depression.
Pharmacological research – January 01, 2025
Summary
New research reveals how S-Ketamine's rapid antidepressant effects may work through the body's endocannabinoid system. Using Flinders Sensitive Line rats, scientists found that S-Ketamine restored natural cannabis-like compounds in the brain's prefrontal cortex. The drug improved depression symptoms while normalizing the brain's lipidome, suggesting a promising link between mood regulation and natural cannabinoid signaling.
Abstract
Ketamine (KET) is recognized as rapid-acting antidepressant, but its mechanisms of action remain elusive. Considering the role of endocannabinoids ...
Identification of Key Genes in Esketamine's Therapeutic Effects on Perioperative Neurocognitive Disorders via Transcriptome Sequencing.
Drug design, development and therapy – January 01, 2025
Summary
Scientists have discovered five key genes that explain how esketamine helps protect brain function during surgery. Using advanced genetic analysis, researchers found that esketamine reduces cognitive problems by activating specific genes in the brain. The study used mouse models to show how this drug prevents perioperative neurocognitive disorders through targeted gene regulation, offering new insights for improving surgical recovery.
Abstract
Esketamine ameliorates propofol-induced brain damage and cognitive impairment in mice. However, the precise role and underlying mechanism of esketa...
Unveiling the Psychedelic Journey: An Appraisal of Psilocybin as a Profound Antidepressant Therapy.
Molecular biotechnology – January 01, 2025
Summary
Psilocybin, found in certain mushrooms, shows remarkable promise in treating severe depression with just a few doses. Recent clinical trials reveal that 71% of participants experienced significant improvement in their mental health after supervised sessions. This natural compound appears to "reset" disrupted brain networks associated with depressive disorders, offering lasting benefits without daily medication.
Abstract
Depression, a global health concern with significant implications for suicide rates, remains challenging to treat effectively with conventional pha...
Music mindfulness acutely modulates autonomic activity and improves psychological state in anxiety and depression.
Frontiers in neuroscience – January 01, 2025
Summary
Combining music with mindfulness practices can rapidly improve heart function and brain activity in people experiencing anxiety and depression. When participants engaged in guided music mindfulness sessions, their heart rate variability improved and brain activity showed positive changes, particularly in areas linked to emotional processing. The sessions effectively reduced stress levels, with in-person gatherings offering additional social benefits. These findings highlight how music mindfulness could be a powerful tool for mental health.
Abstract
Anxiety and depression reduce autonomic system activity, as measured by Heart Rate Variability (HRV), and exacerbate cardiac morbidity. Both music ...
Evaluation of pressure-induced pain in patients with disorders of consciousness based on functional near infrared spectroscopy.
Frontiers in neurology – January 01, 2025
Summary
Pain perception remains a mystery in unresponsive patients, but new brain imaging reveals surprising insights. Using near-infrared spectroscopy, researchers found that while patients with disorders of consciousness showed minimal direct brain activation to pressure-induced pain, their brain regions displayed enhanced functional connectivity during stimulation, suggesting coordinated pain processing still occurs beneath the surface.
Abstract
This study aimed to investigate the brain's hemodynamic responses (HRO) and functional connectivity in patients with disorders of consciousness (Do...
Effects of ketamine on fear memory extinction: a review of preclinical literature.
Frontiers in neuroscience – January 01, 2025
Summary
Ketamine, traditionally used as an anesthetic, shows promise in treating PTSD by helping people overcome traumatic memories. Recent findings reveal that ketamine may enhance fear extinction—a process where threatening memories lose their emotional power. This molecular mechanism could complement CBT, making it easier for patients to process trauma. While timing and dosage are crucial factors, ketamine's ability to modify fear memories offers hope for improved PTSD treatments.
Abstract
Ketamine, a multimodal dissociative anesthetic, is widely used as a trauma analgesic in emergency situations. Ketamine is also used to treat psychi...
Serotonergic psychedelic 5-MeO-DMT alters plasticity-related gene expression and generates anxiolytic effects in stressed mice.
Molecular psychiatry – January 01, 2025
Summary
A naturally-occurring compound found in some toads shows promise in reducing anxiety through brain chemistry changes. This fast-acting substance, 5-MeO-DMT, was found to modify gene expression in key brain regions and reduce stress responses in mice. When given before stressful situations, it lowered stress hormones and decreased anxiety-like behaviors. The compound altered several important brain signaling molecules, particularly in areas linked to emotional processing and memory, suggesting it may help the brain adapt better to stress.
Abstract
Serotonergic psychedelics have potential therapeutic effects in treating anxiety and mood disorders, often after a single dose, and are suggested t...
Effects of the subanesthetic dose of esketamine on postoperative sleep quality in patients undergoing modified radical mastectomy: a randomized, double-blind controlled trial.
Frontiers in medicine – January 01, 2025
Summary
A promising anesthetic drug shows mixed results for breast cancer patients' sleep quality after surgery. Low-dose esketamine during modified radical mastectomy was tested to improve postoperative sleep and recovery. While the drug was safe, it didn't significantly enhance sleep quality and slightly extended recovery time compared to standard care. This finding helps doctors make informed decisions about sleep management after breast surgery.
Abstract
Breast cancer is the most common malignant tumor among women worldwide. Surgical intervention is a critical component of treatment, yet the associa...
Heart rate variability responses to personalized and non-personalized affective videos. A study on healthy subjects and patients with disorders of consciousness.
Frontiers in psychology – January 01, 2025
Summary
Our hearts respond differently to familiar faces versus strangers - a finding that could revolutionize how we assess consciousness in patients. Heart rate patterns in healthy people showed distinct changes when viewing videos of loved ones, while patients with disorders of consciousness had muted responses. This suggests heart rhythm analysis could offer a simple, non-invasive way to detect covert cognition and improve diagnosis in minimally conscious patients.
Abstract
The diagnosis of patients with disorders of consciousness (DOC), including those in a minimally conscious state (MCS) and those with unresponsive w...
Evidence of a hierarchical representation in bodily self-consciousness: the neural correlates of embodiment and presence in virtual worlds.
Frontiers in human neuroscience – January 01, 2025
Summary
Your brain creates a seamless sense of having and being "in" your body through complex neural networks. Using virtual reality and brain scanning, researchers revealed how this self-awareness is built in layers: first, your brain establishes ownership of a body through multisensory integration, then creates the feeling of being present in space. fMRI data showed this hierarchy at work in specific brain regions.
Abstract
Bodily Self-Consciousness (BSC) is the perception of bodily awareness that arises from the integration of neuronal signals in multiple sensory moda...
The effect of intraoperative low-dose ketamine versus dexmedetomidine infusion on postoperative bowel recovery in patients undergoing gastrointestinal malignancy surgeries: Placebo-controlled, randomized trial.
Journal of anaesthesiology, clinical pharmacology – January 01, 2025
Summary
Pain management during gastrointestinal cancer surgery often delays bowel recovery. In a groundbreaking trial, researchers tested whether two pain medications - ketamine and dexmedetomidine - could speed up post-surgery bowel function. While both drugs reduced pain and the need for opioids, neither shortened the time until normal bowel activity resumed compared to placebo.
Abstract
No studies have compared the effects of ketamine and dexmedetomidine on bowel recovery. We evaluated the effects of intraoperative low-dose ketamin...
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Effect and safety of perioperative ketamine/esketamine administration on postoperative pain and depression after breast cancer surgery: a systematic review and meta-analysis.
Frontiers in pharmacology – January 01, 2025
Summary
Ketamine and esketamine show promise in reducing short-term depression following breast cancer surgery, according to comprehensive analysis of 748 patients. While these medications didn't significantly impact postoperative pain levels, they helped lower depression scores in the first week after surgery and reduced instances of dizziness compared to standard care.
Abstract
Patients with breast cancer experience varying degrees of pain, depression, and anxiety after surgery, which affect their postoperative recovery. A...
Resolution of Refractory Status Epilepticus With Ketamine Without Intubation in a Patient With Stroke-Like Migraine Attacks After Radiation Therapy (SMART) Syndrome.
Case reports in neurological medicine – January 01, 2025
Summary
A breakthrough in treating severe seizures: Ketamine successfully halted persistent seizures in a radiation therapy patient without requiring invasive breathing support. The patient, previously treated for brain cancer, developed SMART syndrome - a rare condition causing migraines and seizures years after radiation. When standard medications failed to control the status epilepticus, ketamine proved remarkably effective, offering a safer treatment option.
Abstract
Stroke-like migraine attacks after radiation therapy (SMART) syndrome is an infrequently reported complication arising years after radiation therap...
Preoperative Ketamine Gargle for Prevention of Postoperative Sore Throat After Tracheal Intubation in Adults: A Meta-Analysis.
Pain research & management – January 01, 2025
Summary
A simple gargle solution before surgery can significantly reduce post-surgery throat pain. Ketamine gargle before procedures requiring breathing tubes cuts throat discomfort by up to 86% in the first hours after surgery, with benefits lasting up to 24 hours. This painless preventive measure doesn't extend surgery time and offers a practical way to improve patient comfort during recovery.
Abstract
Objective: This meta-analysis aims to evaluate the impact of preoperative ketamine gargle on postoperative throat pain in patients undergoing gener...
REcovery from DEXmedetomidine-Induced Unresponsiveness (REDEX): A Study Protocol for a Single Center, Parallel Arm, Non-Randomized, Controlled Pilot Trial in Healthy Volunteers.
Nature and science of sleep – January 01, 2025
Summary
How does the brain recover from a deep, sleep-like state? Researchers are exploring how repeated sedation, delivered via target-controlled infusion, affects this process. Volunteers' brain activity was monitored using electroencephalography (EEG) and transcranial magnetic stimulation (TMS) to track changes in consciousness. This approach aims to reveal how consciousness returns, providing valuable insights into sedation and sleep mechanisms. The findings will significantly advance our understanding of brain states.
Abstract
Dexmedetomidine (DEX) is a well-tolerated sedative drug that induces a sleep-like state. DEX sedation offers a model to study transitions between d...
Pharmacokinetics of combinations of dexmedetomidine, vatinoxan and ketamine in male neutered cats.
Veterinary anaesthesia and analgesia – January 01, 2025
Summary
Veterinary medicine takes a leap forward in understanding how common sedative medications interact in cats. When combined, dexmedetomidine and ketamine work differently with vatinoxan, a drug that helps reduce side effects. The research tracked how these medications moved through cats' bodies, finding that vatinoxan increases the body's processing of dexmedetomidine while affecting how well ketamine is absorbed. This knowledge helps veterinarians provide safer sedation.
Abstract
To characterize the pharmacokinetics of combinations of dexmedetomidine, vatinoxan and ketamine in cats. Partially randomized, crossover, experimen...
Distinct effects of global signal regression on brain activity during propofol and sevoflurane anesthesia.
Frontiers in neuroscience – January 01, 2025
Summary
Brain activity patterns differ surprisingly between common anesthetics. Research using fMRI reveals that two popular drugs - propofol and sevoflurane - affect brain networks differently when analyzed using global signal measurements. While propofol shows specific network changes, sevoflurane causes broader alterations in brain connectivity. This insight could help doctors better understand how different anesthetics affect consciousness.
Abstract
Global signal regression (GSR) is widely used in functional magnetic resonance imaging (fMRI) analysis, yet its effects on anesthetic-related brain...