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Aging is responsible for oxidative damage to DNA, protein, lipid, and other macromolecules linked to tissue alterations. The resultant damage contributes significantly to degenerative diseases, to include those of the brain, sensorial tissues, and cardiovascular system. To protect cellular...
Extracts from the rhyzome of Curcuma longa are widely used as food additives in India and other Asiatic and Central American countries. It has been shown that these extracts (“turmeric”), as well as “curcumin” and related phenolic compounds isolated from Curcuma , have a powerful...
We investigated the impact of dietary restriction on the basal rate of somatotrope renewal in the pituitary gland. Bromodeoxyuridine (BrdU), a thymidine analog, was administered continuously for 1 week in male F344 rats at 3, 8 and 20 months of age (mo), fed ad libitum (AL) or diet restricted...
Xanthine dehydrogenase (XDH) and xanthine oxidase (XOD) are single-gene products that exist in separate but interconvertible forms. XOD utilizes hypoxanthine or xanthine as a substrate and O 2 as a cofactor to produce superoxide (·O 2 − ) and uric acid. XDH acts on these same substrates but...
Oxidative damage caused by free radicals in vivo is believed to play an important role in the etiology of aging and age-associated degenerative diseases. The most direct evidence supporting this theory is the recent finding that the transgenic Drosophila that overexpress the antioxidant enzymes...
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