Lactic acidosis, a rare but life-threatening condition is fairly common in HIV-infected individuals. The cause of lactic acidosis appears to stem from the use of HAART, causing mitochondrial dysfunction and the depletion of flavoprotein cofactors necessary for electron transport. Deficiencies of riboflavin or thiamin can contribute to the development of hyperlactic acidemia. Further, the high incidence of liver disease (hepatitis B or C and alcoholic liver disease) in this population predisposes HIV patients to metabolic abnormalities. Supplementation with thiamin or riboflavin, depending on the individual patient's condition, can reduce elevated lactic acid levels.
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