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A study of the lipid composition of ram testicular and ejaculated spermatozoa was made in an attempt to resolve conflicting results in the literature. Testicular spermatozoa were found to contain more than double the amount of phospholipid present in ejaculated spermatozoa. Most phohpholipid components, including choline plasmalogen, decrease substantially(More)
Exposure of murine erythroleukemia cells (MELCs) to nicotinamide (NA) or its synthetic analog N'-methylnicotinamide (N'-MN) reduces cell growth and induces terminal differentiation, marked by increased heme and globin accumulation. On the contrary, 1-methylnicotinamide (1-MN), the primary metabolite of excess NA, was found to stimulate cell growth and(More)