Psilocin Triggers Rapid Neural Growth in Laboratory Study

Details

A new laboratory study is adding another piece to the puzzle of how psychedelic compounds may affect the brain. Researchers found that psilocin, the active compound produced from psilocybin in magic mushrooms, rapidly increased the formation of synaptic connections in cultured rat brain cells. The amount of new synapse formation was comparable to changes produced by ketamine and lithium under the study conditions. The researchers also observed a rapid increase in activity of the Arc gene, which is involved in changes at synapses. That gives scientists a possible molecular clue for how psilocin can produce fast structural changes in neurons. The study is important because changes in neural connections, often described as neuroplasticity, are one possible biological route behind the rapid antidepressant effects being investigated for psychedelic drugs. But the experiment was performed on isolated cells from rat embryos, not on living people. A cell culture cannot reproduce the complexity of a functioning human brain, and the study does not establish that psilocin will produce the same structural effects in people or that these changes directly cause antidepressant benefits. The researchers also found that other tested compounds did not produce the same measurable increase in synapse number during the 24-hour window, although the experimental setup may have influenced those results. Overall, the findings provide a biological lead rather than proof of a new treatment, and further animal and human research is needed to understand how these cellular changes relate to perception, mood, and mental health.