Vitamin C may also contribute to the maintenance of a healthy
vasculature and to a reduction in atherogenesis through the regulation
of collagen synthesis, prostacyclin production, and nitric
oxide (26–28). In addition to its antioxidant role, vitamin C has
roles at the molecular level, including acting as a cofactor for
dopamine -hydroxylase (EC 1.14.17.1), influencing neurotransmitter
concentrations, improving lysosomal protein degradation,
and mediating glutamate uptake