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  • Title: Frequency and multiplicity of human papillomavirus infection in HIV-1 positive women in Italy.
    Author: Garbuglia AR, Piselli P, Lapa D, Sias C, Del Nonno F, Baiocchini A, Cimaglia C, Agresta A, Capobianchi MR.
    Journal: J Clin Virol; 2012 Jun; 54(2):141-6. PubMed ID: 22437054.
    Abstract:
    BACKGROUND: Natural history of HPV infection is altered in HIV positive women, with increased risk of cervical dysplasia. Limited data are available about the influence of HPV genotypes and HPV multiple infections on cervical disease in HIV positive women. OBJECTIVES: We determined HPV genotype prevalence in cervical samples from 553 HIV-infected women attending the gynaecological service at "L. Spallanzani" Hospital. Association of HPV multiple infections with cervical abnormalities was investigated. STUDY DESIGN: MY09/MY11 consensus primers were used to detect HPV-DNA; HPV typing was performed by RFLP. A commercial array based kit was used to define unresolved RFLP patterns. RESULTS: HPV was detected in 244/553 (44.1%) patients, correlating with low CD4 counts (p<0.001) and age (p=0.001). Multiple HPV types were observed in 44.4% of cases, more frequently involving HR than LR HPV (OR=12.8, p<0.00001). Multiple HPV infections were associated with low CD4 counts (OR=3.8 in CD4<200 vs CD4≥500 cells/mm(3)). Dyskaryosis was associated with decreased CD4 counts (≥500 vs 200-499 vs <200 cells/mm(3), χ(2) for trend, p=0.001) and with HPV types multiplicity (1 vs 2-3 vs ≥4, χ(2) for trend, p<0.00001). Notably, in 3 H-SIL cases only LR types were detected (HPV62, n=2; HPV81, n=1). CONCLUSIONS: Multiple HPV infections, often involving HR types, are frequent in HIV-infected women. Association between multiple HPV infection, low CD4 count and cytological abnormalities supports the interplay of virological and immunological factors in cervical cancer pathogenesis. Assessment of multiple HPV infections might gain importance in cervical cancer screening, particularly in patients with predisposing factors like immuno-suppression.
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