title: Effects of HIV type 1 infection on hematopoiesis in Botswana.
abstract: Clinical observations suggest that HIV-1 infection causes higher anemia rates in patients in southern Africa than in those in the United States. To explore this difference we performed a cross-sectional exploratory study on the effect of HIV-1 infection on hematopoiesis in Botswana by examining hematological presentation, HIV disease state, hematopoietic progenitor cell number, and circulating viral levels in HIV-infected patients and HIV-uninfected controls. We found significant associations between CD34(+) and CD4(+) cell counts in HIV-positive patients. Significant relationships were also seen between the CD34(+) CD4(+) cell population and hemoglobin levels, as well as colony-forming ability. These associations, however, were not seen in uninfected controls. Circulating viral p24 levels were found to correlate significantly with CD34(+) cell count, CD34(+) CD4(+) cell count, and colony-forming ability. These results demonstrate a direct association between HIV-1 infection in southern Africa and hematopoietic progenitor cell health.
authors.affiliation: Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, Massachusetts 02115, USA.
authors.forename: Andrew D
authors.initials: AD
authors.lastname: Redd
authors.forename: Ava
authors.initials: A
authors.lastname: Avalos
authors.forename: Kelesitse
authors.initials: K
authors.lastname: Phiri
authors.forename: M
authors.initials: M
authors.lastname: Essex
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018952:Antigens, CD34 / Q000032:analysis; D001772:Blood Cell Count; D001902:Botswana; D015704:CD4 Antigens / Q000032:analysis; D018791:CD4 Lymphocyte Count; D003430:Cross-Sectional Studies; D005260:Female; D016655:HIV Core Protein p24 / Q000097:blood*; D015658:HIV Infections / Q000097:blood* / Q000821:virology; D015497:HIV-1; D006410:Hematopoiesis; D006412:Hematopoietic Stem Cells; D006801:Humans; D008297:Male; D008875:Middle Aged; D019562:Viral Load
chemical_list: D018952:Antigens, CD34; D015704:CD4 Antigens; D016655:HIV Core Protein p24