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Knowledge · Supplements

Urolithin A: PINK1/Parkin mitophagy, muscle function, and limits of the evidence

From the microbial ellagitannin cascade to ubiquitin-mediated mitophagy and human trials: primary outcomes, secondary signals, pharmacokinetics, and urolithin A safety.

October 8, 2026
Knowledge · Supplements

Chinese magnolia vine: schisandrins, Hsp70, and the limits of its effects on fatigue

From berry composition and lignan stereochemistry to chaperones, mitochondrial glutathione, Nrf2, and neuroendocrine hypotheses: human research, standardization, and drug interactions.

October 8, 2026
Knowledge · Supplements

Pyrroloquinoline Quinone (PQQ): Redox Chemistry, CREB–PGC-1α, and the Limits of Clinical Evidence

From a bacterial quinone cofactor and cellular mitochondrial biogenesis to cardiac and brain models, small human studies, and toxicological limits.

October 8, 2026
Knowledge · Supplements

Molecular hydrogen: redox mechanisms, delivery and the limits of clinical evidence

H₂ biophysics, Henry's law, competition in radical reactions, Nrf2/Keap1, inflammatory and mitochondrial pathways, and early clinical trials including the negative primary endpoint of HYBRID II.

October 8, 2026
Knowledge · Supplements

Huperzine A: acetylcholinesterase and limits of neuroprotection

A detailed account of reversible AChE inhibition, pharmacokinetics, NMDA, mitochondria, Nrf2 and APP. Dementia trials are distinguished from cell and animal findings, with safety, interactions and practical assessment of memory complaints.

October 3, 2026