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The de novo synthesis pathway (e.g., serine synthesis pathway, SSP) confers metabolic autonomy by enabling endogenous serine production, particularly under nutrient-replete conditions where SSP suffices to meet proliferative demands ( Metabolic plasticity serves as a hallmark of cancer cell adaptation to microenvironmental heterogeneity

Vitamin C Fights off colds and helps heal scrapes and cuts

Genet 46 , 812814 (2014)

10.1136/bmjopen-2019-031083 BMJ Open

Low energy and oxidative damage cause aneuploidy and embryo arrest

Complementary NAD+ replacement strategies fail to functionally protect dystrophin-deficient muscle