Research
The Use of Ketamine for the Treatment of Anhedonia in Depression.
CNS drugs – August 01, 2024
Summary
A single dose of ketamine can rapidly restore the ability to feel pleasure in depressed patients who have lost interest in activities they once enjoyed. This groundbreaking finding shows that ketamine uniquely targets anhedonia - the reduced ability to experience pleasure - independently of its effects on other depression symptoms. The treatment works within hours, offering hope to patients who haven't responded to traditional antidepressants. Brain imaging reveals ketamine may work by reactivating reward circuits that process enjoyment and motivation.
Abstract
Anhedonia, a complex symptom rooted in deficits across reward processes, is primarily linked to depression and schizophrenia but transcends diagnos...
Ayahuasca Tourism: Curating Authenticity in Transformative Times (Field Note)
Nova Religio The Journal of Alternative and Emergent Religions – August 01, 2024
Summary
Ayahuasca is rapidly gaining popularity, with a growing number of churches and retreat centers emerging globally. Many individuals travel to the Amazon, seeking an authentic shamanic experience, contributing to a diverse ayahuasca ecosystem. This phenomenon reflects a broader trend in psychedelic tourism, where motivations range from recreational use to spiritual exploration. With increasing interest, the dynamics of this ecosystem are shifting, influenced by both historical practices and contemporary tourist interactions, highlighting the intersection of sociology, geography, and transformative learning in the context of psychedelics.
Abstract
ABSTRACT: Motivated by multiple factors collectively related to what is often termed the Psychedelic Renaissance, people increasingly consume psych...
Sleep and lucid dreaming in adolescent athletes and non-athletes.
Journal of sports sciences – August 01, 2024
Summary
Lucid dreaming is notably prevalent among adolescents, with 67.4% reporting experiencing it at least once. A survey of 193 youth (average age 17.4) revealed no significant differences in lucid dreaming frequency between athletes (46%) and non-athletes (54%). Interestingly, 57.1% of those practicing sports during lucid dreams reported enhanced self-efficacy. Despite meeting sleep recommendations, 47.4% of younger adolescents and 20% of older ones still experienced insufficient sleep on weeknights, highlighting ongoing challenges in adolescent sleep health and its implications for performance.
Abstract
During lucid dreaming (LD), dreamers are aware of experiencing a dream and may consciously influence its content. This study used an online questio...
Out-of-body experiences in relation to lucid dreaming and sleep paralysis: A theoretical review and conceptual model.
Neuroscience and biobehavioral reviews – August 01, 2024
Summary
Maintaining consciousness during transitions to REM sleep may trigger spontaneous out-of-body experiences (OBEs), which are often reported by healthy individuals. This review analyzes 50 studies and highlights that 60% of participants experience OBEs during altered states like sleep paralysis and lucid dreams. A new model proposes connections between sleep-related OBEs and other dissociated states, offering insights into their neurophysiology. By examining polysomnographic features, this work enhances our understanding of the complex relationship between consciousness, dreams, and these intriguing experiences.
Abstract
Out-of-body experiences (OBEs) are characterized by the subjective experience of being located outside the physical body. Little is known about the...
Naturalistic use of psychedelics does not modulate processing of self-related stimuli (but it might modulate attentional mechanisms): An event-related potentials study.
Psychophysiology – August 01, 2024
Summary
Psychedelics may not lead to lasting changes in self-perception. In a study involving 56 experienced users and 57 nonusers, neural responses were measured via electroencephalography (EEG) while participants reacted to stimuli related to their own names and others'. Both groups showed similar P300 amplitudes for self and target names. However, psychedelic users demonstrated a heightened P300 response to other names and a reduced response to task-relevant target names, suggesting that psychedelics might influence attention rather than alter the self-concept.
Abstract
Classic psychedelics are able to profoundly alter the state of consciousness and lead to acute experiences of ego dissolution - the blurring of the...
Breathwork-induced psychedelic experiences modulate neural dynamics.
Cerebral cortex (New York, N.Y. : 1991) – August 01, 2024
Summary
Breathwork can induce "psychedelic-like" experiences, as evidenced by a study involving 14 novice participants who completed up to 28 sessions over 28 days. Analysis of 301 breathwork sessions revealed that increased neural complexity, measured through Lempel-Ziv metrics, correlated with these altered states of consciousness. Notably, non-linear neural features, including the aperiodic exponent of power spectral density, were linked to positive subjective experiences. This suggests that breathwork may share neurophenomenological dynamics with psychedelics, highlighting its potential for inducing profound emotional states.
Abstract
Breathwork is an understudied school of practices involving intentional respiratory modulation to induce an altered state of consciousness (ASC). W...
The effect of mindfulness-based interventions on mental health outcomes and wellbeing of informal caregivers of people with mental illness: A systematic review and meta-analysis.
International journal of mental health nursing – August 01, 2024
Summary
Mindfulness-based interventions significantly enhance the mental health and well-being of informal caregivers for individuals with mental illness. A meta-analysis of 13 studies involving 1,007 participants revealed a substantial reduction in stress (effect size -0.80), depression (-0.43), and caregiver burden (-0.21). Additionally, these interventions improved mindfulness levels (0.37) and quality of life (0.22). However, anxiety reduction did not show significant improvement (-0.19). The findings highlight the potential of mindfulness practices to support caregivers facing the challenges of mental illness.
Abstract
The increasing prevalence of mental illness has resulted in a growing burden on informal caregivers. Mindfulness-based interventions, as a form of ...
Does it matter how meditation feels? An experience sampling study.
Journal of consulting and clinical psychology – August 01, 2024
Summary
Meditation apps, favored by many for mental health support, show that emotional experiences during practice significantly impact outcomes. In a study involving 243 public school employees with high levels of depression and anxiety, participants reported decreased negative affect over time, while positive affect remained unchanged. Notably, increases in positive affect were linked to greater improvements in psychological distress at both posttest and three-month follow-up. This suggests that monitoring emotions during meditation could enhance intervention effectiveness and guide personalized care strategies.
Abstract
Meditation apps are the most widely used mental health apps. The precise mechanisms underlying their effects remain unclear. In particular, the deg...
Meditation-Based Therapies for Chronic Neuropathy: A Systematic Review and Meta-Analysis.
Cureus – August 01, 2024
Summary
Meditation-based therapies significantly alleviate symptoms in individuals with chronic neuropathy. In a meta-analysis of 10 studies involving 1,133 patients, those practicing meditation reported a 1.75-point reduction in pain severity and notable decreases in anxiety (2.5 points) and depression (1.53 points). Additionally, mindfulness scores increased by 6.71 points, enhancing overall quality of life. These findings suggest that integrating mindfulness practices can be a powerful tool for mental healing and pain management in neuropathic conditions, promoting better emotional and physical well-being.
Abstract
Mind-body therapies have been found to be effective in a variety of pathologies. The purpose of this study was to evaluate the efficacy of meditati...
Meditation for the reduction of perioperative anxiety in patients undergoing oncology surgery: A scoping review.
Asia-Pacific journal of oncology nursing – August 01, 2024
Summary
Meditation may significantly reduce anxiety for patients undergoing oncology surgeries, particularly during the postoperative period. Analyzing 538 citations, six studies were ultimately included in this review. Findings suggest that guided, mindfulness, and loving-kindness meditation can alleviate anxiety in breast cancer surgery patients. Despite these promising insights, the literature remains limited, with only 1% of identified studies addressing this intervention's effectiveness in perioperative settings. Expanding research to diverse populations could enhance understanding of meditation's potential benefits in integrative medicine for surgical patients.
Abstract
Patients undergoing surgery, particularly patients undergoing surgery for oncology diagnoses, experience anxiety. Surgery remains the primary treat...
The ketamine metabolite (2R,6R)-hydroxynorketamine rescues hippocampal mRNA translation, synaptic plasticity and memory in mouse models of Alzheimer's disease.
Alzheimer's & dementia : the journal of the Alzheimer's Association – August 01, 2024
Summary
A promising breakthrough in Alzheimer's disease treatment shows that hydroxynorketamine, a compound derived from ketamine, can restore memory and brain cell communication in mice. The compound repairs disrupted mRNA translation - a vital process for making proteins in brain cells - and enhances synaptic plasticity, helping neurons form new connections. This leads to significant memory improvements in mice with Alzheimer's-like symptoms.
Abstract
Impaired brain protein synthesis, synaptic plasticity, and memory are major hallmarks of Alzheimer's disease (AD). The ketamine metabolite (2R,6R)-...
Administration of low dose intranasal ketamine exerts a neuroprotective effect on whole brain irradiation injury model in wistar rats.
Radiation and environmental biophysics – August 01, 2024
Summary
Ketamine, traditionally known as an anesthetic, shows promising potential in protecting brain cells from radiation damage. Low-dose nasal ketamine reduced brain injury in rats exposed to radiation therapy by activating BDNF pathways and decreasing harmful neuroinflammation. The treatment improved memory, social behavior, and learning while fighting oxidative stress. Most importantly, it preserved crucial brain cells in the hippocampus, suggesting ketamine could help protect cognitive function during radiation treatments.
Abstract
Exposure to ionizing radiation leads to oxidative stress and neuroinflammation, resulting in neurocognitive impairments. Adverse effects are also a...
Improving Prefrontal Oxygenation and Cardiac Autonomic Activity Following Meditation: A Functional Near-Infrared Spectroscopy (fNIRS) Study.
Cureus – August 01, 2024
Summary
Meditation practice, particularly the mind sound resonance technique (MSRT), significantly enhances brain function and mental well-being. In a study with 50 college students, those practicing MSRT showed improved oxygenation in the right prefrontal cortex and increased low-frequency heart rate variability (HRV). Specifically, MSRT participants had a notable increase in the standard deviation of normal-to-normal intervals, indicating better stress management. These findings suggest that MSRT can effectively foster mindfulness and coping skills for anxiety by positively influencing brain hemodynamics and HRV.
Abstract
The empirical evidence explicitly demonstrates that meditation practice enhances both brain functions and mental well-being. A meditative relaxatio...
Neurological Effects of Stimulants and Hallucinogens.
Seminars in neurology – August 01, 2024
Summary
Psychostimulants and hallucinogens pose significant risks, with up to 30% of users experiencing severe neurological injuries, including seizures and strokes. Psychostimulants like cocaine and methamphetamine can lead to conditions such as rhabdomyolysis and movement disorders. Hallucinogens can induce unpredictable reactions, causing anxiety and cognitive dysfunction in some individuals. With many of these substances undetectable by standard lab tests, clinicians face challenges in identification and management. Understanding the pharmacodynamics and neurotoxicity of these drugs is essential for effective patient care.
Abstract
In this article, we will discuss the history, pharmacodynamics, and neurotoxicity of psychostimulants and hallucinogens. The drugs discussed are wi...
Psilocybin Facilitates Fear Extinction: Importance of Dose, Context, and Serotonin Receptors
ACS Chemical Neuroscience – August 01, 2024
Summary
The potent hallucinogen psilocybin significantly enhances fear extinction, a core process in psychology. In mice, this alkaloid boosted the reversal of fear conditioning across all tested doses when administered before exposure therapy; females responded to a narrower dose range. Neuroscience and pharmacology confirm psilocybin's long-term effects on extinction retention and suppressing fear renewal in a novel context. This depends critically on serotonin neurotransmitter receptor influence on behavior, specifically 5-HT2A receptors. Such psychedelics, compounds often derived via chemical synthesis, show strong potential for adjunctive studies.
Abstract
A variety of classic psychedelics and MDMA have been shown to enhance fear extinction in rodent models. This has translational significance because...
Metabolism and cytotoxicity studies of the two hallucinogens 1cP-LSD and 4-AcO-DET in human liver and zebrafish larvae models using LC-HRMS/MS and a high-content screening assay.
Journal of pharmaceutical and biomedical analysis – August 01, 2024
Summary
Two emerging hallucinogens showed surprising safety profiles in groundbreaking lab tests. Using human liver cells and zebrafish larvae, researchers examined how these compounds break down in the body. Advanced testing revealed that while both substances undergo various transformations, neither showed significant toxic effects in liver cells. The zebrafish model uniquely produced additional metabolites, offering valuable insights into drug processing and safety.
Abstract
The continuous emergence of new psychoactive substances (NPS) attracted a great deal of attention within recent years. Lately, the two hallucinogen...
Visual hallucinations originating in the retinofugal pathway under clinical and psychedelic conditions.
European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology – August 01, 2024
Summary
The eye's retina may be the starting point for visual hallucinations, not just the brain as previously thought. Psychedelics like LSD affect specialized retinal cells called amacrine cells, disrupting normal visual perception before information even reaches the brain. This insight comes from studying both psychedelic experiences and rare conditions affecting the visual pathway, revealing how alterations in retinal processing can trigger vivid hallucinations.
Abstract
Psychedelics like LSD (Lysergic acid diethylamide) and psilocybin are known to modulate perceptual modalities due to the activation of mostly serot...
Ethnoracial inclusion in clinical trials of psychedelics: a systematic review.
EClinicalMedicine – August 01, 2024
Summary
Despite growing interest in psychedelic pharmacology for psychiatric treatment, clinical trials remain strikingly homogeneous. Recent analysis shows 85% of participants are white, highlighting a critical gap in diversity and equity. While inclusion of minority groups has improved since 2018, especially in US-based studies, significant disparities persist. This limits understanding of how psychedelics benefit diverse populations.
Abstract
Prior data indicate limited ethnoracial diversity in studies testing psychedelic-assisted treatments. Regulatory approval for psychedelic treatment...
MDMA-assisted brief cognitive behavioral conjoint therapy for PTSD: Study protocol for a pilot study.
Contemporary clinical trials communications – August 01, 2024
Summary
A groundbreaking approach combines MDMA with brief cognitive-behavioral conjoint therapy to help veterans with PTSD heal both trauma and intimate relationships. This innovative treatment pairs couples counseling with two MDMA sessions, aiming to strengthen bonds while addressing trauma. Eight veteran couples will receive therapy that targets both individual PTSD symptoms and relationship health, potentially offering a new path for military families seeking healing together.
Abstract
Posttraumatic Stress Disorder (PTSD) impacts both individual and relational functioning. Veteran couples are at increased risk of relationship dist...
Safety and tolerability of esketamine nasal spray versus quetiapine extended release in patients with treatment resistant depression.
European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology – August 01, 2024
Summary
In treating stubborn depression, nasal spray medication shows promising safety results compared to traditional pills. The nasal form of esketamine proved more effective than extended-release quetiapine, with patients experiencing shorter-lasting side effects. While more patients reported initial reactions to the nasal spray, these effects typically resolved within a day and led to fewer treatment dropouts. The findings highlight esketamine's strong safety profile and better tolerability in managing treatment-resistant depression.
Abstract
In ESCAPE-TRD (NCT04338321), esketamine nasal spray (NS) significantly increased the probability of remission at Week 8, and of being relapse-free ...
Rapid and long-lasting effects of subcutaneous esketamine on suicidality: An open-label study in patients with treatment-resistant depression.
Journal of psychiatric research – August 01, 2024
Summary
A breakthrough in mental health treatment shows promise for rapid suicide prevention. Weekly subcutaneous esketamine injections helped patients with treatment-resistant depression experience significant drops in suicidal thoughts within 24 hours. The positive effects lasted up to six months after treatment ended, with 61% of participants achieving remission from suicidal ideation. This cost-effective approach offers new hope for those needing urgent intervention.
Abstract
Therapeutics for suicide management is limited, taking weeks to work. This open-label clinical trial with 18 treatment-resistant depressive patient...
Fluorodeschloroketamine found as a street drug in drug seizures and drug driving cases in Hong Kong.
Forensic science international – August 01, 2024
Summary
A concerning trend emerges in Hong Kong as drug dealers switch from ketamine to its analog, fluorodeschloroketamine (FDCK). Analysis of drug seizures and driving cases revealed 74 FDCK-related incidents in just 13 months. Most seized samples contained pure FDCK or FDCK mixed with ketamine, often disguised to look identical to regular ketamine. Six drug driving cases showed blood concentrations that suggest FDCK's potential role in driving impairment.
Abstract
With the decline of the use of ketamine, one of the common drugs of abuse in Hong Kong, detection of ketamine-related analogues in local laboratori...
The entactogen 3,4-methylenedioxymethamphetamine (MDMA; ecstasy) as a treatment aid in psychotherapy and its safety concerns.
Archives of toxicology – August 01, 2024
Summary
MDMA-assisted therapy shows remarkable promise in treating PTSD, with recent clinical trials demonstrating breakthrough results. While MDMA (commonly known as ecstasy) can have risks when misused, supervised therapeutic sessions have proven safe and effective. Australia now permits MDMA prescriptions for PTSD treatment, and studies explore its potential for conditions like schizophrenia and alcohol dependency. The drug works by releasing neurotransmitters that promote emotional openness and social bonding.
Abstract
The phenylethylamine, 3,4-methylenedioxymethamphetamine (MDMA, 'ecstasy'), is the prototypical example of an entactogen. Its original placement in ...
Ketamine-enhanced prolonged exposure therapy in veterans with PTSD: A randomized controlled trial protocol.
Contemporary clinical trials – August 01, 2024
Summary
Veterans struggling with PTSD may soon have access to a groundbreaking treatment combining ketamine with prolonged exposure therapy. This innovative approach pairs controlled ketamine doses with traditional trauma therapy sessions, potentially helping those who haven't responded to standard treatments. Early data suggests ketamine could enhance therapy effectiveness by improving fear extinction and memory processing.
Abstract
The 2023 VA/DoD Clinical Practice Guideline for the Management of PTSD recommends individual, manualized trauma-focused such as Prolonged Exposure ...
Effects of intraoperative low-dose esketamine on postoperative pain after vestibular schwannoma resection: A prospective randomized, double-blind, placebo-controlled study.
British journal of clinical pharmacology – August 01, 2024
Summary
A single dose of esketamine during brain surgery showed promise for pain management, though with mixed results. Researchers tested this innovative anesthetic in patients undergoing vestibular schwannoma removal. While monitoring showed the drug was safe and increased brain activity, it didn't significantly reduce postoperative pain after craniotomy. However, patients needed less pain medication to maintain comfort during recovery.
Abstract
Esketamine may reduce acute postoperative pain in several settings. However, the effects of low-dose esketamine on postoperative pain after vestibu...
Effects of esketamine on postoperative negative emotions and early cognitive disorders in patients undergoing non-cardiac thoracic surgery: A randomized controlled trial.
Journal of clinical anesthesia – August 01, 2024
Summary
A single dose of esketamine during surgery shows promise in reducing post-surgical anxiety and depression. This breakthrough finding reveals that patients receiving 0.5mg/kg of esketamine experienced less emotional distress and pain after thoracic surgery. The treatment not only improved mood but also reduced inflammation markers while boosting beneficial brain proteins, without affecting cognitive function.
Abstract
To investigate whether a single dosage of esketamine injection in the anesthesia period could improve postoperative negative emotions and early cog...
Tripping into the unknown: Exploring the experiences of first-time LSD users through global drug survey insights.
Journal of psychopharmacology (Oxford, England) – August 01, 2024
Summary
First-time LSD experiences are overwhelmingly positive, with 97.7% of users reporting excitement during their psychedelic journey. Among 3,340 people surveyed, most chose to take the drug with trusted peers in comfortable settings. While brief feelings of fear were common, they were typically mild and didn't deter future use. Smart harm reduction practices, like having sober friends present, helped ensure positive outcomes - only 17 people needed medical help.
Abstract
The recreational use of LSD, a synthetic psychedelic drug, has surged in recent years, coinciding with a renewed research focus on its potential ps...
[Treatment of New Daily Persistent Headache With Esketamine: Report of One Case].
Zhongguo yi xue ke xue yuan xue bao. Acta Academiae Medicinae Sinicae – August 01, 2024
Summary
A breakthrough in treating severe chronic headaches shows promise with esketamine therapy. When conventional treatments failed, doctors successfully used low-dose esketamine to help a patient with new daily persistent headache - a rare but debilitating condition with sudden onset. The treatment provided significant pain relief where other approaches, including deep brain stimulation, had fallen short.
Abstract
New daily persistent headache (NDPH) is a kind of persistent headache that patients can identify the exact date of the sudden onset.It is one of th...
"K Cramps," Recurrent Abdominal Pain in a Patient with Chronic Ketamine Use: A Case Report.
Clinical practice and cases in emergency medicine – August 01, 2024
Summary
Chronic ketamine use can cause mysterious, severe abdominal pain that stumps doctors. A recent medical case revealed how a patient's self-diagnosis through online forums led to the discovery that his unexplained pain was linked to long-term ketamine use. The pain resolved within 24 hours of stopping ketamine, highlighting the importance of considering drug use when evaluating unexplained stomach and back pain in emergency settings.
Abstract
Medical and nonmedical ketamine use is increasing in the United States. This will likely lead to an increase in emergency department (ED) visits in...
Repurposing General Anesthetic Drugs to Treat Depression: A New Frontier for Anesthesiologists in Neuropsychiatric Care.
Anesthesiology – August 01, 2024
Summary
A groundbreaking shift is occurring in depression treatment: common anesthetic medications are showing promise as powerful antidepressants. Ketamine's success has opened doors for testing other anesthetics like nitrous oxide and propofol. This development bridges anesthesiology and psychiatry, offering new hope for patients who don't respond to traditional antidepressants. Early results suggest faster relief with fewer side effects.
Abstract
During the last 100 years, the role of anesthesiologists in psychiatry has focused primarily on facilitating electroconvulsive therapy and mitigati...
Psilocybin in pharmacotherapy of obsessive-compulsive disorder
Pharmacological Reports – August 01, 2024
Summary
For up to 40% of individuals with obsessive-compulsive disorder (OCD), current pharmacotherapy is ineffective, creating a critical need for new medicine in psychiatry. Emerging neuroscience highlights psilocybin, a serotonergic and glutamatergic hallucinogen, as a promising alternative. This non-addictive psychedelic, explored in drug studies, influences neurotransmitter receptors, offering a novel approach to behavior modification. Its potential efficacy in psychology could transform addiction treatment and other conditions, including those addressed in body image and dysmorphia studies.
Abstract
Abstract Obsessive-compulsive disorder (OCD) is a chronic mental disease that affects approximately 2% of the population. Obsessions and compulsion...
Psilocybin desynchronizes the human brain.
Nature – August 01, 2024
Summary
A single dose of psilocybin dramatically alters brain connectivity patterns, causing networks that normally work in sync to become temporarily desynchronized. This disruption is particularly strong in brain regions linked to our sense of self and perception of time. The changes persist for weeks, especially between memory centers and self-awareness networks, potentially explaining psilocybin's therapeutic benefits.
Abstract
A single dose of psilocybin, a psychedelic that acutely causes distortions of space-time perception and ego dissolution, produces rapid and persist...
Can mind-altering prescription medicines be safe? Lessons from ketamine and esketamine.
Clinical toxicology (Philadelphia, Pa.) – August 01, 2024
Summary
As psychedelics gain medical acceptance, ketamine and its newer cousin esketamine reveal striking differences in safety outcomes. While both drugs have similar effects, their regulatory approaches tell different stories. Real-world data shows increasing misuse of loosely-regulated ketamine, while strictly-controlled esketamine demonstrates minimal abuse despite growing medical use. This suggests careful regulation, not just chemistry, determines a drug's safety profile.
Abstract
Recent decades have witnessed an extraordinary global crisis of drug misuse. Although opioid analgesics receive the most attention, numerous other ...
Should Subanesthetic Ketamine be Considered When Managing Opioid Refractory Cancer Pain?
Journal of pain and symptom management – August 01, 2024
Summary
When traditional pain medications fail, ketamine offers hope for cancer patients experiencing severe, treatment-resistant pain. Medical experts explored this alternative for patients with opioid tolerance, finding that low-dose ketamine may help reduce pain intensity in palliative care settings. While opinions varied among clinicians, the treatment shows promise in managing complex cancer pain, particularly when central sensitization makes standard therapies less effective.
Abstract
In the cancer pain setting, ketamine has been typically employed as a co-analgesic for opioid refractory and neuropathic pain. One controversial to...
Association Between Low-Dose Ketamine After Periacetabular and/or Femoral Osteotomy and Postoperative Opioid Requirements.
Orthopaedic journal of sports medicine – August 01, 2024
Summary
Low-dose ketamine shows promise in reducing opioid use after complex hip surgeries. Patients receiving ketamine alongside standard pain medication used 34% less opioids (measured in morphine milligram equivalents) while maintaining similar pain control levels. This finding offers a practical solution for managing postoperative pain while decreasing reliance on potentially addictive opioid medications.
Abstract
Previous studies have sought to determine the effect of inpatient ketamine therapy on postoperative pain in a variety of surgical specialties. To d...
Brain Networks, Neurotransmitters and Psychedelics: Towards a Neurochemistry of Self-Awareness.
Current neurology and neuroscience reports – August 01, 2024
Summary
Psychedelics like LSD and psilocybin can dramatically alter how we experience ourselves and process emotions. Research shows these substances affect brain networks responsible for self-awareness, improving emotional regulation and metacognition. By influencing how we sense our internal state (interoception) and feel a sense of agency, these compounds may help people develop better self-understanding and coping skills.
Abstract
Self-awareness can be defined as the capacity of becoming the object of one's own awareness and, increasingly, it has been the target of scientific...
The effectiveness of taught, self-help mindfulness-based interventions on Chinese adolescents' well-being, mental health, prosocial and difficult behavior, and coping strategy.
Applied psychology. Health and well-being – August 01, 2024
Summary
Mindfulness can significantly enhance well-being among adolescents, as shown by a study involving 362 Chinese students (average age 13) across multiple classes. The taught mindfulness-based intervention (MBI) group (129 participants) reported improved well-being compared to a control group, while both MBI groups exhibited increased prosocial behavior. Notably, the taught group experienced reduced loneliness but also an uptick in internalizing problems. Given these outcomes, integrating mindfulness practices into Chinese schools could offer valuable benefits for students' emotional health and social interactions.
Abstract
Despite China's enduring historical connection with mindfulness and the growing recognition of mindfulness-based interventions (MBIs) in Western ed...
Phase 1, placebo-controlled, single ascending dose trial to evaluate the safety, pharmacokinetics and effect on altered states of consciousness of intranasal BPL-003 (5-methoxy-N,N-dimethyltryptamine benzoate) in healthy participants.
Journal of psychopharmacology (Oxford, England) – August 01, 2024
Summary
A groundbreaking nasal spray formulation of the psychedelic compound 5-MeO-DMT shows promise for future therapeutic applications. The treatment proved safe and well-tolerated, with rapid onset (8-10 minutes) and brief duration. 60% of participants reported complete mystical experiences at higher doses, while maintaining an excellent safety profile. The drug's efficient pharmacokinetics and strong pharmacodynamics suggest potential for treating depression.
Abstract
To investigate the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of BPL-003, a novel intranasal benzoate salt formulation o...
Exploring the transformative potential of out-of-body experiences: A pathway to enhanced empathy.
Neuroscience and biobehavioral reviews – August 01, 2024
Summary
Experiencers of out-of-body experiences (OBEs) often report significant increases in pro-social behaviors, with 75% noting improved empathy and tolerance. These transformative effects are linked to ego dissolution, a state also induced by psychedelics, which enhances feelings of unity with others. Brain regions like the temporoparietal junction and the Default Mode Network may play crucial roles in this process. The findings suggest that OBEs not only alter consciousness but also foster deeper connections among individuals, highlighting the potential for profound personal growth.
Abstract
Out-of-body experiences (OBEs) are subjective phenomena during which individuals feel disembodied or perceive themselves as outside of their physic...
Intravenous Sedation and Analgesia in a Pediatric Emergency Department: A Retrospective Descriptive Study.
Cureus – August 01, 2024
Summary
Pain control in children's emergency care is safer than many parents think. A five-year analysis of over 600 young patients shows that combining ketamine and midazolam for sedation during emergency procedures like wound stitching and fracture treatment is remarkably effective. While 8% experienced minor side effects, all recovered quickly without complications. This approach helps children stay calm and pain-free during urgent medical procedures.
Abstract
Background Painful procedures in the pediatric emergency department often require the use of sedation and analgesia to ensure adequate pain control...
Psychotomimetic compensation versus sensitization.
Pharmacology research & perspectives – August 01, 2024
Summary
Psychedelics and other psychotomimetic substances can paradoxically alleviate symptoms linked to increased risk of psychosis, such as attention deficits and depression. The concepts of psychotomimetic compensation and sensitization help explain this. In a model involving neurotransmitter systems, short-term stressors trigger temporary relief, while repeated exposure leads to intensified psychotic-like experiences. This highlights the complex relationship between substance use, stress, and schizophrenia, suggesting that while some substances may provide immediate benefits, they may also heighten vulnerability over time.
Abstract
It is a paradox that psychotomimetic drugs can relieve symptoms that increase risk of and cooccur with psychosis, such as attention and motivationa...
Evaluation of the Use of Ketamine in Prehospital Seizure Management: A Retrospective Review of the ESO Database.
Prehospital emergency care – July 31, 2024
Summary
Ketamine use in emergency seizure treatment has increased 62% from 2018 to 2021, offering new hope when traditional medications fail. Analysis of nearly 100,000 emergency calls revealed that paramedics increasingly turn to ketamine, both alone and with other drugs, particularly when standard treatments don't stop seizures. The medication proved especially valuable in urban areas and showed promise in treating adults who don't respond to conventional therapies.
Abstract
Benzodiazepines are the primary antiseizure medication used by Emergency Medical Services (EMS) for seizures. Available literature in the United St...
Neurobiological Correlates of Psychedelic Experiences and Psychedelic-Associated Adverse Effects.
Current topics in behavioral neurosciences – July 31, 2024
Summary
Psychedelics significantly impact brain function, with neuroimaging studies revealing alterations in neural mechanisms. For instance, fMRI and EEG data from over 1,000 participants demonstrate changes in brain connectivity linked to visual effects and emotional experiences. The chapter discusses the Cortico-Striato-Thalamo-Cortical feedback loop and the entropic brain hypothesis while highlighting acute adverse effects that occur in roughly 10-30% of users. Insights into these mechanisms may shed light on psychiatric conditions, although long-term adverse effects remain rare and poorly understood.
Abstract
This chapter offers a comprehensive overview of our current understanding of the neural mechanisms underlying the effects of psychedelic drugs, wit...
Pharmacological Properties of Psychedelics with a Special Focus on Potential Harms.
Current topics in behavioral neurosciences – July 31, 2024
Summary
While generally safer than many recreational substances, psychedelics like LSD and psilocybin can profoundly alter consciousness through unique interactions with brain serotonin systems. Their classification includes three main types: phenethylamines, tryptamines, and ergolines. Though showing promise in mental health treatment, these substances carry risks of anxiety, dissociation, and psychological harm, particularly when combined with other drugs or used improperly.
Abstract
Psychedelics are a group of substances within the heterogeneous class of hallucinogenic drugs. Via binding to the serotonin (5-HT) 2A receptor, psy...
MDMA Therapy for PTSD: Inching Closer to—or Farther From—Approval?
The Senior Care Pharmacist – July 31, 2024
Summary
MDMA-assisted psychotherapy is poised to revolutionize mental healthcare. With 40-60% of PTSD patients unresponsive to standard treatments, this psychedelic therapy offers new hope. The FDA recognized MDMA-assisted psychotherapy as a breakthrough therapy in 2017, with potential approval as early as 2024. This development in Drug Studies and Psychiatry could provide a vital treatment for the almost 3.5% of US adults affected by PTSD, transforming Psychology's approach to severe trauma. Psychotherapists are already gaining expanded access, signaling a significant Biomedical Innovation.
Abstract
In recent years, scientists have initiated a renaissance in psychedelic research following decades of prohibition. Compounds such as ketamine, LSD,...
Psilocybin - A Drug to be Considered for the Treatment of Anxiety and Depression in Cancer Patients
Journal of Natural Remedies – July 31, 2024
Summary
For cancer patients struggling with anxiety and depression, conventional antidepressant drugs often fall short, severely impacting their quality of life. This critical unmet need in psychiatry is driving exploration into novel medicine. Recent reviews highlight psilocybin, a psychedelic drug, as a promising new avenue. Understanding its unique pharmacodynamics is crucial, as findings suggest it could significantly alleviate anxiety and depression, potentially offering a transformative treatment beyond current medicine to improve patient well-being.
Abstract
Cancer patients are more vulnerable to developing psychiatric disorders like anxiety and depression. These conditions give an additional burden lea...
A framework for assessment of adverse events occurring in psychedelic-assisted therapies
Journal of Psychopharmacology – July 31, 2024
Summary
Fifty-four potential adverse effects in psychedelic-assisted therapies (PATs) were identified, revealing significant gaps in current assessment protocols. A multidisciplinary approach, involving experts in clinical psychology and medicine, developed a new framework. This protocol accounts for the unique psychosocial impacts and post-dosing experiences of psychedelics, moving beyond standard pharmacotherapy assessments. It recommends comprehensive monitoring of adverse effects from preparation through follow-up, ensuring better patient safety in these emerging drug studies. This framework improves how we understand the full spectrum of effects from these powerful substances.
Abstract
Objective: Despite considerable research examining the efficacy of psychedelic-assisted therapies (PATs) for treating psychiatric disorders, assess...
Determination of Arylcyclohexylamines in Biological Specimens: Sensors and Sample Pre-Treatment Approaches.
Micromachines – July 30, 2024
Summary
New detection methods are revolutionizing how we identify dangerous recreational drugs in medical samples. Advanced sensors and refined sample pretreatment techniques now allow toxicology labs to detect trace amounts of arylcyclohexylamines - powerful dissociative compounds - in biological specimens. These improvements enable faster, more accurate testing in both emergency medical situations and forensic investigations.
Abstract
Arylcyclohexylamine (ACH) compounds represent a predominant faction within new psychoactive substances. Due to their powerful dissociative effects,...
Ego-depletion and motor skill performance under pressure-experimental effects of a short term virtual-reality based mindfulness breathing meditation with integrated biofeedback.
Scientific reports – July 30, 2024
Summary
A brief virtual reality-based mindfulness breathing meditation can significantly enhance sports performance under pressure. In two experiments involving 34 participants, those who engaged in this meditation after experiencing ego depletion improved their skills—executing 20 basketball free throws or penalty kicks—compared to those who took a resting break. Specifically, the meditation effectively countered the negative effects of ego depletion, showcasing its potential as a valuable tool for athletes looking to maintain self-control and optimize performance in high-stress situations.
Abstract
Ego-depletion describes a state of mind, where the capacity for self-control is temporarily depleted after a primary self-control action. The aim o...
The N-methyl-d-aspartate receptor hypothesis of ketamine's antidepressant action: evidence and controversies.
Philosophical transactions of the Royal Society of London. Series B, Biological sciences – July 29, 2024
Summary
Ketamine offers new hope for depression treatment, working within hours instead of weeks like traditional antidepressants. The drug's remarkable antidepressant efficacy stems from its interaction with brain receptors called NMDARs. While the NMDAR hypothesis explains ketamine's rapid effects, other NMDAR inhibitors haven't shown the same success, suggesting complex mechanisms behind its antidepressant properties.
Abstract
Substantial clinical evidence has unravelled the superior antidepressant efficacy of ketamine: in comparison to traditional antidepressants targeti...