psychiatric disorders

Associations between psychedelic-related and meditation-related variables: A longitudinal study

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This study of over 13,000 people examined how using psychedelics relates to meditation practices. Researchers found that people who used psychedelics during the study period increased their meditation practice more than those who didn’t. Importantly, people who already had higher levels of mindfulness and self-compassion before using psychedelics had less difficult experiences during their use. However, among people who were already meditating regularly, psychedelic use was linked to more difficulties during meditation.

Ketanserin Reverses the Acute Response to LSD in a Randomized, Double-Blind, Placebo-Controlled, Crossover Study in Healthy Participants

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Researchers tested whether ketanserin, a drug that blocks serotonin receptors, could stop or reverse an LSD experience once it had already started. In a controlled study with healthy volunteers, ketanserin given one hour after LSD administration cut the duration of the LSD experience from 8.5 hours down to 3.5 hours and eliminated visual and auditory hallucinations. This finding suggests ketanserin could be useful as an emergency medication in psychedelic-assisted therapy to help patients who have negative reactions to LSD.

Transient destabilization of whole brain dynamics induced by N,N-Dimethyltryptamine (DMT)

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This study used computer models of brain activity to understand how the psychedelic drug DMT rapidly changes how the brain works during an acute experience. Researchers found that DMT pushes brain dynamics into a special state where the brain becomes hypersensitive to small changes or stimuli. This heightened sensitivity is strongest in brain regions rich in serotonin receptors and matches the expected timing of the drug’s effects, suggesting that brief psychedelic experiences may create lasting changes in the brain through this temporary destabilization window.

A comprehensive overview of the effects of probiotics, prebiotics and synbiotics on the gut-brain axis

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This comprehensive review examines how probiotics (beneficial live bacteria), prebiotics (food for beneficial bacteria), and synbiotics (combinations of both) can influence communication between the gut and brain. These interventions can produce beneficial compounds like GABA and serotonin, strengthen the gut barrier, and reduce inflammation, potentially helping with mood, anxiety, cognition, and various digestive disorders. However, effects vary greatly depending on the specific strain used, dosage, and individual differences in gut bacteria, and more large-scale studies are needed to confirm long-term clinical benefits.

Synthesis and bioactivity of psilocybin analogues containing a stable carbon–phosphorus bond

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Researchers created new chemical versions of psilocybin (the active compound in magic mushrooms) that cannot be broken down by the body’s natural enzymes in the same way. They tested these new compounds to see if they could help with depression and anxiety by targeting specific brain receptors. The best compound worked well on the intended brain receptors but importantly showed less activity on a heart-related receptor, potentially making it safer than natural psilocybin.

Exploring Molecular Changes in the Extended Amygdala Induced by Chronic Corticosterone Administration

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Researchers studied how prolonged stress hormone exposure affects the brain’s emotional center in mice. They found that chronic corticosterone treatment caused depression-like behaviors and specific molecular changes in different parts of the amygdala, a brain region crucial for processing emotions. These findings help explain how chronic stress disrupts the brain’s normal stress-regulation system and contributes to depression and other psychiatric conditions.

Investigating the Knowledge of Prebiotics, Probiotics, and Synbiotics That May Help to Improve the Gut-Organ Axis Function in Middle-Aged and Older Adults

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This study examined what middle-aged and older adults know about probiotics, prebiotics, and synbiotics—special food components that can improve gut health. Researchers found that many people had little knowledge about these products, even though they may help with various health conditions including heart disease and mental health. After giving people an educational information sheet about gut biotics, their knowledge significantly improved, suggesting that simple education can help people make better choices about their digestive health.

The molecular mechanisms through which psilocybin prevents suicide: evidence from network pharmacology and molecular docking analyses

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Researchers used computer-based analysis to understand how psilocybin, a compound found in certain mushrooms, might help prevent suicide. They identified four key proteins that psilocybin interacts with and found that it works through serotonin and calcium signaling pathways in the brain, which are known to be involved in depression and suicidal behavior. While these findings are promising, more research is needed to confirm these effects in humans before psilocybin can be used clinically for suicide prevention.

Toxicology and Analysis of Psychoactive Tryptamines

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Tryptamines are a growing class of psychoactive drugs that can cause hallucinations and other dramatic changes in perception. These substances, including compounds like DMT and psilocybin from magic mushrooms, work by affecting serotonin receptors in the brain. While some research explores their potential medical use for treating depression and anxiety, they also carry serious risks including dangerous changes in heart rate, body temperature, and mental state. Scientists have developed new laboratory methods to detect these drugs in blood and urine samples to help doctors diagnose and treat overdoses.

Disease: psychiatric disorders