NAD is also damaged down in the human body into molecules which can be converted back into NAD via a recycling pathway in your body, Martens claims. HeLa cells appear to be specially depending on the de novo pyrimidine synthesis pathway supplied their bigger levels on the dihydroorotate dehydrogenase (DHODH) https://nadanditsimpactonagingand79134.blog5star.com/32122977/not-known-details-about-nad-and-its-role-in-mitochondrial-function