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pubmed-article:8342556pubmed:abstractTextWe observed increased hemoglobin A2 (HbA2) levels in an asymptomatic human immunodeficiency virus-1 (HIV1) patient with no previous history of beta-thalassemia. He was treated only with zidovudine (AZT). In an attempt to understand this observation, a retrospective study was initiated to determine whether mean HbA2 levels are higher in AZT-treated patients than in subjects not receiving this drug and to assess if other hematologic alterations are associated with elevated HbA2. One hundred fifty-one HIV-positive cases were investigated; AZT was administered to 81 of them. The mean value of HbA2 was 0.032 (SD +/- 0.005) for the treated group vs. 0.027 (SD +/- 0.004) for the controls. This difference was highly significant (P < 0.001). Twenty-four patients (31%) in the treated group had elevated HbA2 levels vs. none in the controls. Bone marrow toxicity seemed to be more significant in patients with heightened HbA2 values, and HbA2 levels did not increase with CDC clinical stage. We conclude that AZT may be linked to high HbA2 levels in some patients.lld:pubmed
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pubmed-article:8342556pubmed:articleTitleIncrease of hemoglobin A2 in human immunodeficiency virus-1-infected patients treated with zidovudine.lld:pubmed
pubmed-article:8342556pubmed:affiliationAIDS Center (UHRESS), l'Hôtel-Dieu de Montréal, Quebec, Canada.lld:pubmed
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pubmed-article:8342556pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed