Depression is one of the most common mental health challenges people face today. It goes beyond just feeling sad - it shapes the way a person thinks, behaves, and experiences the world around them. The persistent low mood, the fading interest in things that once brought joy, the fog that makes even simple decisions feel overwhelming - all of it quietly chips...
Psilocybin is a drug with renewed clinical interest because of its potential to treat psychiatric diseases. Preliminary human data suggest that psilocybin could be used to treat chronic pain, but whether psilocybin produces direct analgesia remains unclear, and existing human data have not resolved how it works if it does. The preclinical literature has conf...
Chronic pain states remain challenging to control with current drug therapies. Here, we demonstrate that a single dose of psilocybin produces a sustained anti-nociceptive effect in chronic neuropathic pain models in male and female mice, mediated primarily by 5-HT2A receptors. Critically, psilocybin significantly potentiates the analgesic efficacy of gabapen...
Autism Spectrum Disorder (ASD) is characterized by persistent social-communication deficits, cognitive rigidity, and atypical sensory processing. Current pharmacological treatments, including risperidone and aripiprazole, provide only limited symptomatic relief and do not address the underlying neurobiological mechanisms. Converging evidence implicates dysre...
Affective biases are important neuropsychological mechanisms by which emotions modulate cognition, behaviour and the subjective experience of mood. Previous studies have shown that the rapid-acting antidepressant, ketamine, and serotonergic psychedelic, psilocybin, modulate affective biases in a translational rat model. Both treatments differ from convention...
The classic psychedelic psilocybin elicits long-lasting neural plasticity and behavioral effects, but prior studies largely examined stress-naive animals. Using longitudinal imaging, we show that psilocybin increases dendritic spine density in frontal cortical neurons and facilitates fear extinction after chronic restraint stress, demonstrating psilocybin’s ...
Serotonergic psychedelics such as N,N-dimethyltryptamine (DMT) and 4-phosphoryloxy-N,N-dimethyltryptamine (psilocybin) show therapeutic promise for psychiatric and neurodegenerative disorders but may be limited by liabilities from serotonin (5-HT)-2A mediated psychoactive effects and potential cardiotoxicity via 5-HT2B activation. To address these limitation...
Background: Psilocybin, the main psychoactive compound found in Psilocybe mushrooms, has gained increasing attention due to its potential therapeutic effects in neuropsychiatric disorders [1]. Beyond its central effects, increasing evidence highlights the relevance of the gut-brain axis, suggesting that psychedelics may also influence intestinal microbiota c...
Background: Psilocybin, a key psychoactive compound found in Psilocybe mushrooms, has gained increasing attention due to its therapeutic potential in neuropsychiatric disorders [1]. However, comparative preclinical data between isolated psilocybin and whole mushroom extracts remain scarce, particularly regarding behavioural reinforcement and peripheral toxic...
Psychedelics show therapeutic potential for treating psychiatric disorders. While studies have emphasized the roles of cortical pyramidal cells, GABAergic neurons also express serotonin receptors and are therefore likely targets of psychedelics. In this study, we determine the effect of psilocybin on the activity dynamics of major GABAergic cell types in the...
Prolonged obesity induces enduring structural changes within neural circuits that contribute to maintaining the body at an elevated/obese body weight. These circuits regulate various mechanisms which can inhibit extreme or persistent weight loss. Therefore, a potential therapeutic strategy to facilitate weight loss is to promote structural plasticity within ...
Psilocybin extends lifespan in aged mice, and this has prompted extensive media speculation about possible human longevity benefits. We examined mortality among prominent psychedelic personalities, researchers, and advocates who claimed psychedelic use (n = 11) and compared them with cancer (n = 12) and aging researchers (n = 5). All groups exceeded populati...
Psilocybin can produce sustained benefits in affective and trauma-related disorders, yet if and how it reshapes sensory representations of learned valence associations remains largely unclear. To address this, we used longitudinal two-photon calcium imaging in awake C57BL/6 mice to examine how psilocybin modulates layer 2/3 auditory cortex activity at single...
The goal of this clinical trial is to learn if psilocybin, given with psychological support, is safe and helps treat anorexia nervosa in young adults. Anorexia nervosa is a serious eating disorder that currently has no approved medicine. Psilocybin is a psychedelic substance that may help the brain form new connections, which could make it easier for people ...
Psilocybin, a serotonergic psychedelic, can produce rapid and enduring antidepressant effects in patients with major depressive disorder (MDD)[1, 2], yet the neural mechanisms underlying these effects remain unclear. Negative affective biases are an important neuropsychological mechanism central to the development and perpetuation of MDD[3]. Using a translat...
Auditory steady-state responses (ASSRs), particularly at 40 Hz, are promising biomarkers for psychiatric disorders involving dysregulated neural synchronization. Although most ASSR studies have focused on the glutamatergic system, the serotonergic system, specifically 5-HT2A receptor signaling, has received limited attention. Psilocin, the active metabolite ...
Intestinal inflammation is a complex gastrointestinal condition, arising from immune dysfunction, epithelial cell abnormalities, and gut microbiota imbalances. Intestinal inflammation contributes to many pathological conditions, including irritable bowel disease and depression. This study seeks to find the potential anti-inflammatory properties of psilocybin...
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