This arginine-derived metabolic network includes the ureotelic nitrogen metabolites that are the primary focus of this review article: nitric oxide, polyamines, and their derivatives like polyamine-derived GABA
Effects in mice and rats do not reliably predict effects in humans, and animal dosing does not translate directly
The three main repair signals: collagen, wound healing, anti-inflammatory These three mechanisms do not operate independently
Animal studies show it cuts tendon healing time by 3040% at human-equivalent doses, with users reporting reduced soreness and faster injury recovery in 24 weeks at 500 mcg/day
Glucagon, from past to present: A century of intensive research and controversies
Repair Failure Incidence of meniscus repair failure is roughly 20% depending on the series reported