behavioral pharmacology

Effect of psilocybin on marble burying in ICR mice: role of 5-HT1A receptors and implications for the treatment of obsessive-compulsive disorder

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Researchers tested whether psilocybin mushrooms could help treat obsessive-compulsive disorder (OCD) using mice. They found that psilocybin reduced compulsive burying behavior in mice, similar to how approved OCD medications work. The study revealed that this anti-compulsive effect works through different brain mechanisms than previously thought, and that combining psilocybin with another drug called buspirone might block psychedelic effects while keeping therapeutic benefits.

Psilocybin Does Not Induce Conditioned Place Preference, But Modifies Behavioral Patterns in Sprague-Dawley Rats

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Researchers tested whether psilocybin, a compound found in magic mushrooms, could be addictive by examining reward-seeking behavior in rats. The study found that psilocybin did not create rewarding effects that would typically lead to addiction, and only temporarily changed specific behaviors like head-twitching and grooming while the drug was active. These findings suggest that psilocybin has a low addiction potential and may be safe for therapeutic use in treating mental health conditions.

Transient Elevation of Plasma Glucocorticoids Supports Psilocybin-Induced Anxiolysis in Mice

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This study examined how psilocybin works to reduce anxiety in mice by investigating the role of stress hormones, particularly corticosterone. Researchers found that psilocybin causes a temporary spike in corticosterone levels that is essential for its anxiety-reducing effects hours after administration. Interestingly, other interventions that increase corticosterone levels also produced similar anxiety-reducing effects, suggesting the stress hormone response itself drives the therapeutic benefit rather than psilocybin’s psychedelic properties alone. These findings suggest that measuring cortisol levels in human patients receiving psilocybin therapy could help explain and optimize therapeutic outcomes.

Identification of 5-HT2A receptor signaling pathways associated with psychedelic potential

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Scientists discovered that psychedelic drugs work by activating a specific signaling pathway in the brain called the 5-HT2A-Gq pathway. By creating new drug-like molecules, they found that drugs need to strongly activate this particular pathway to produce psychedelic effects like hallucinations. This discovery could help researchers design new psychiatric medicines that have therapeutic benefits without the hallucinogenic side effects that worry doctors and patients.

Research Topic: behavioral pharmacology

Effect of psilocybin on marble burying in ICR mice: role of 5-HT1A receptors and implications for the treatment of obsessive-compulsive disorder

Psilocybin Does Not Induce Conditioned Place Preference, But Modifies Behavioral Patterns in Sprague-Dawley Rats

Transient Elevation of Plasma Glucocorticoids Supports Psilocybin-Induced Anxiolysis in Mice

Identification of 5-HT2A receptor signaling pathways associated with psychedelic potential