Publicação: Plasma antioxidants and glutamine supplementation in HIV
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HIV+ patients present higher plasma levels of pro-oxidant and lower antioxidant markers irrespective of their nutritional status and the presence of HAART [1]. The presence of HAART showed some beneficial effects on β-carotene plasma levels but not on the other antioxidant markers [2]. Among those were glutathione (GSH) and its precursors [3]. GSH (l-y-glutamyl-l-cysteinyl-glycine) is the major intracellular hydro-soluble antioxidant agent representing important functions in biochemical processes and cell control, specially the antioxidant and immune defenses [4]. Plasma GSH can also be used as forms of cysteine storage and transport, with consequences for the regulation of signal transduction pathways and gene transcription [5].
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Glutathione antioxidant metabolism, HIV+, Oral glutamine supplementation, Sulfured-amino acids metabolism
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Glutamine in Clinical Nutrition, p. 437-443.
