major depressive disorder – Page 4

Biological markers of treatment response to serotonergic psychedelic therapies: a systematic review

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This review examines how scientists can predict which patients will benefit most from psychedelic-assisted therapy for depression by measuring biological markers in the brain and blood. Researchers found that certain brain changes and protein levels—particularly involving the amygdala, specific brain regions, and inflammation markers—appear linked to treatment success. While the current studies are small, they suggest that measuring these biological markers could eventually help doctors personalize psychedelic treatments for depression.

Anhedonia: Current and future treatments

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Anhedonia is the inability to feel pleasure from activities, which is a significant problem affecting many people with depression and other psychiatric conditions. This review examined many different treatments for anhedonia including medications, brain stimulation techniques, and psychological therapies. The research shows that newer medications like vortioxetine and ketamine work better for anhedonia than older antidepressants, and combining multiple approaches including therapy and lifestyle changes gives the best results.

Enhanced visual contrast suppression during peak psilocybin effects: Psychophysical results from a pilot randomized controlled trial

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Researchers studied how psilocybin affects the way our visual system processes contrast and surrounding visual information. Participants completed vision tests after taking psilocybin or placebo, and the results showed that psilocybin made people more influenced by surrounding visual elements when judging the brightness of objects. Interestingly, the stronger the visual effects people experienced from psilocybin, the more their perception was influenced by these surroundings. This finding might help explain how psilocybin affects mood and could help scientists better understand depression and other conditions affecting vision.

Psychedelics and the Serotonin Hypothesis of Eating Disorders

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This review explores how psychedelic drugs like psilocybin (found in certain mushrooms) might help treat eating disorders by promoting flexible thinking and breaking rigid eating patterns. The authors summarize evidence from animal studies and early clinical trials showing that psychedelics work differently than traditional antidepressants by triggering brain changes that help people adopt new, healthier behaviors. While results are promising, more research is needed to determine the best doses, patient populations, and long-term safety.

Therapeutic emergence of dissociated traumatic memories during psilocybin treatment for anorexia nervosa

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Two patients with severe anorexia nervosa received psilocybin-assisted therapy and unexpectedly recovered memories of sexual assault that had been unconsciously suppressed. Processing these traumatic memories with professional support led both patients to achieve remission from their eating disorders within three months. This case report suggests that psilocybin may help unlock and heal deeply buried trauma underlying eating disorders, though more research is needed to understand how this works and ensure patient safety.

Psilocybin for treatment resistant depression in patients taking a concomitant SSRI medication

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Researchers tested whether people with severe depression could take psilocybin (a compound from certain mushrooms) while staying on their antidepressant medications. In this study of 19 people, those who received psilocybin with psychological support while continuing their SSRI showed significant improvement in depression symptoms over three weeks, with response rates of 42%. Side effects were mostly mild and temporary, suggesting this approach may be safe and effective without requiring patients to stop their current antidepressants.

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.

Psilocybin-assisted group psychotherapy and mindfulness-based stress reduction for frontline healthcare provider COVID-19-related depression and burnout: A randomized controlled trial

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Researchers tested whether combining psilocybin therapy with mindfulness training could better treat depression and burnout in frontline healthcare workers than mindfulness training alone. Twenty-five doctors and nurses participated in the study, with some receiving mindfulness training combined with psilocybin therapy in a group setting, while others received mindfulness training only. After two weeks, those who received the combined treatment showed significantly greater improvements in depression symptoms and burnout, with no serious side effects reported. This suggests that psilocybin-assisted therapy combined with mindfulness training could be a promising treatment for depression and burnout among healthcare professionals.

Efficacy of psilocybin for treating symptoms of depression: systematic review and meta-analysis

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This comprehensive analysis of clinical trials found that psilocybin, a compound found in certain mushrooms, shows promise as a treatment for depression compared to placebo. The treatment was particularly effective for patients with depression related to serious illness, those using self-reported symptom assessments, older adults, and those with prior experience with psychedelics. While side effects were minimal and temporary, researchers emphasize that more research is needed to fully understand how expectancy and individual factors influence treatment outcomes.

Are Side Effects Necessary for Antidepressive Treatment: The Psilocybin Experience

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Researchers are studying psilocybin (a compound from certain mushrooms) as a potential treatment for depression. However, there is debate about whether the hallucinogenic side effects are necessary for its therapeutic benefits. This paper argues that new research suggests the antidepressant effects work through specific brain pathways (serotonin, opioid, and glutamate systems) that don’t require hallucinations. The author suggests developing safer, non-hallucinogenic antidepressants that maintain the same therapeutic benefits.

Disease: major depressive disorder