Antibiotic Exposure Linked to Shorter Biologic Survival in Psoriasis: A Large French Cohort Suggests a Dose–Response Relationship

Antibiotic Exposure Linked to Shorter Biologic Survival in Psoriasis: A Large French Cohort Suggests a Dose–Response Relationship

A nationwide retrospective cohort (36,129 patients) found antibiotic use before or during biologic treatment for psoriasis was associated with higher risk of discontinuation or switch; multiple dispensations carried larger risk, suggesting antibiotic-associated dysbiosis may reduce biologic persistence.
Metformin and ‘Anti‑Aging’: Promising Mechanisms but Mixed Clinical Evidence — What Recent Trials Tell Us

Metformin and ‘Anti‑Aging’: Promising Mechanisms but Mixed Clinical Evidence — What Recent Trials Tell Us

Recent randomized and mechanistic studies provide a nuanced view: metformin shows plausible anti‑aging mechanisms and microbiome‑linked cognitive associations, but randomized trials report no clear anti‑cancer or anti‑senescence effects in humans to date.