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Hallucinogenic Therapy in Alzheimer's Disease targeting Mitochondria-Associated Membranes.

Fernando Minauro-Sanmiguel, Hector Vargas-Perez

Neuroscience April 6, 2026 Peer reviewed DOI: 10.1016/j.neuroscience.2026.02.028 via PubMed

Summary

Mitochondrial dysfunction is a key factor in Alzheimer's disease, leading to neuroinflammation and synaptic failure. Classic hallucinogens like psilocybin and LSD may help restore mitochondrial function by activating specific receptors, which could enhance mitochondrial health and reduce oxidative stress. However, while these findings are promising, clinical evidence for their effectiveness in treating Alzheimer's disease is still limited and primarily based on preclinical studies. Further research is needed to explore these psychedelic mechanisms safely.

Study at a glance

Design hypothesis-generating model
Key finding Classic hallucinogens may restore mitochondrial integrity in Alzheimer's disease models by activating 5-HT2A and sigma-1 receptors.

Abstract

Mitochondrial dysfunction is increasingly recognized as a central driver of Alzheimer's disease (AD), contributing to neuroinflammation, synaptic failure, and energy collapse.Emerging preclinical evidence suggests that classic hallucinogens, such as psilocybin, lysergic acid diethylamide (LSD), N,N-dimethyltryptamine (DMT), mescaline, may restore mitochondrial integrity by activating Serotonin 2A (5-HT2A) and sigma-1(Sig-1R) receptors. In experimental models, these pathways are associated with enhanced mitochondrial biogenesis, reduced oxidative stress, and preservation of ER-mitochondrial coupling. DMT and 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) specifically engage Sig-1R at mitochondria-associated membranes, improving calcium homeostasis and cellular resilience. While these mechanisms are mechanistically compelling, evidence for clinical efficacy in AD remains limited and largely preclinical. Accordingly, this framework is presented as a hypothesis-generating model suggesting that mitochondrial-centered psychedelic mechanisms warrant further investigation,provided that neuropsychiatric safety, patient selection, and translational feasibility are carefully addressed.

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