| http://www.w3.org/ns/prov#value | - Blood samples drawn upon enrollment and at the study???s conclusion were tested for DHEA and DHEA sulfate, pentosidine (a marker of AGE biogenesis), tumor necrosis factor-alpha (TNF-alpha, involved in inflammation) and its soluble receptors; reduced glutathione (an antioxidant), reactive oxygen species, hydroxynonenal (HNE, a byproduct of lipid peroxidation), vitamin E, and other factors.
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