alexa Oxidant antioxidant status in patients with chronic HIV infection.
Immunology

Immunology

Journal of Clinical & Cellular Immunology

Author(s): Coaccioli S, Crapa G, Fantera M, Del Giorno R, Lavagna A,

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Abstract The infection caused by HIV leads to an activation of the immune system, which involves local and systemic oxidative stress. In HIV-positive (HIV+) patients, oxidative damage is the result of HIV infection and its progression through the replication of the virus. We have examined 52 subjects: 26 HIV+ patients, and 26 healthy subjects (NC). Analysis of the parameters of the oxidant/antioxidant status (total antioxidant capacity (TAC), hydroperoxides (free radicals, PRO), thiols as thiolic capacity, TC) was carried out by means of the OXY-Absorbent test, the d-Rom test, and the -SHp test, respectively. Healthy subjects presented the following values: TAC (micromol/ml) 259.5+/-40.5; TC (micromol/l) 434.09+/-18.31; PRO (mg/dl) 54.09+/-7.3; CD4+ cells (cells/ml) 850+/-333. Values of HIV+ patients were the following: TAC 218.73+/-18.55 (ns vs NC; TC 250.88+/-93.11 (p 0.001 vs NC); PRO 110.5+/-23.61 (p 0.0005 vs NC); CD4+ cells 354+/-323.35 (p 0.0005 vs NC). The statistical analysis shows a direct correlation between TAC vs CD4+ cells; an indirect correlation between hydroperoxides vs CD4+ cells; not significant result between thiolic capacity vs CD4+ cells; finally, good correlations between TAC, hydroperoxides, and thiolic capacity vs HIV-RNA. The data obtained have proven that HIV+ patients present a condition of important oxidative stress. We may affi rm that this disease concurs with an increase of extreme stress; a condition in which the antioxidant defences are present, but are insufficient in neutralising the damaging actions of reactive species of oxygen, thus contributing to an acceleration in the natural history of HIV infections.
This article was published in Clin Ter and referenced in Journal of Clinical & Cellular Immunology

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