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The primary evidence comes from the 2017 Cell paper using aged and chemotherapy-treated mice, and subsequent mechanistic studies

Yes (strong) FDA status FDA-approved (T2D and obesity) Compound NAD+ (intravenous or subcutaneous) Mechanism Direct NAD+ supplementation Route IV infusion or subcutaneous Acts on appetite

Moreover, treatment with mitochondria-targeted antioxidant MitoQ preserves mitochondrial quality control, alleviates tubular injury, and restores kidney function by reversing mitophagy deficiency through the Nrf2/PTEN-induced kinase 1 (PINK) signaling pathway in db/db mice (68)

For storage, bacteriostatic water should be maintained at ambient temperature and protected from light, heat, and moisture