Biological Assay of Vitamin E

Vitamin E: molecular and biological function.

There is a growing body of evidence implicating free radicals in a wide variety of medical diseases and conditions, especially the diseases of ageing, such as cancer and cardiovascular disease, which appear to be ultimate expressions of long-term, cumulative and sustained cellular damage. Vitamin E is an excellent lipid-soluble, chain-breaking antioxidant in the presence of other co-operative a...

Radioprotective effects of selenium and vitamin-E against 6MV X-rays in human blood lymphocytes by micronucleus assay

Background: Critical macromolecules of cells such as DNA are in exposure to damage of free radicals that induced from the interaction of ionizing radiation with biological systems. Selenium and vitamin-E are natural compounds that have been shown to be a direct free radical scavenger. The aim of this study was to investigate the radioprotective effect of selenium and vitamin-E separately and sy...

THE VITAMIN Ba GROUP VIII. BIOLOGICAL ASSAY OF PYRIDOXAL, PYRIDOXAMINE, AND PYRIDOXINE*

Though various chemical and microbiological methods have been developed for the estimation of vitamin Bs in whole (2-4) or in part (5), animal assays are still necessary for testing the accuracy of these new methods as they apply to animal nutrition. It is also important that the relative potency of pyridoxine, pyridoxamine, and pyridoxal for animals be known. Two different purified rations hav...

A Note on the Biological Assay of Vitamin D in Fish Liver Oils

04 Vitamin E 1999 e