A genetic study of a defect in glutathione metabolism of the erythrocyte
Quintas-Cardama A, Kantarjian H, Andreeff M , Faderi S, Wright J, Zhang W, Konopleva M, Verstovsek S, Borthakur G, Cortes J
Third, as we will detail below (see Potential Pathogenic Mechanisms of Hyperhomocysteinemia), our own work (Durand et al, 1997a) and the work of Lentz et al (1996) and Bellamy et al (1998) give experimental evidence that moderate hyperhomocysteinemia, which leads to vascular dysfunction, might increase the cardiovascular risk independently of other risk factors
However, some people cannot take vitamin B12 injections safely, including those with Lebers disease or similar eye concerns, kidney disease, liver disease, iron or folic acid deficiency, an active infection, or those taking medications that may interact with vitamin B12
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There are only three studies in the literature showing beneficial effects of L-carnitine on performance of athletes