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Quantitation of HTLV-I provirus among seropositive blood donors: relation with antibody profile using synthetic
M Matsumura1, S Kushida, Y Ami
1Department of Biochemistry, University of Tsukuba, Ibaraki, Japan.
Abstract:
To study the pathophysiological state of HTLV-I carriers and the quantitative aspect of the risk of HTLV-I infection, we measured the absolute amounts of HTLV-I provirus in 39 seropositive blood donors. The amount of provirus varied from less than one to more than 10(4) molecules per 10(5) peripheral-blood mononuclear cells (PBMC). The average amount of HTLV-I provirus among seropositive blood donors was estimated as 3.7 x 10(3) molecules per 10(5) PBMC. The titer of the antibody against only the synthetic peptide (aa 100 to 130) of the gag p19 region of the HTLV-I provirus showed a weak but significant correlation with the amount of the provirus.