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  • Title: Human papillomavirus prevalence in the anus and urine among HIV-infected Japanese men who have sex with men.
    Author: Yaegashi H, Shigehara K, Itoda I, Ohkodo M, Nakashima K, Kawaguchi S, Ueda M, Izumi K, Kadono Y, Ikeda H, Namiki M, Mizokami A.
    Journal: J Infect Chemother; 2017 Sep; 23(9):621-626. PubMed ID: 28688605.
    Abstract:
    BACKGROUND: The present study investigated human papillomavirus (HPV) prevalence in anal and urine samples, and evaluated cytological findings among human immunodeficiency virus (HIV)-infected Japanese men who have sex with men (MSM). METHODS: A total of 148 patients were enrolled. Anal and urine samples were collected from each participant, and a HPV-DNA test and genotyping were performed using flow-through hybridization. In addition, anal cytology was evaluated based on Papanicolaou staining. Questionnaires regarding lifestyle habits and sexual behavior were obtained. RESULTS: The β-globin gene was positive in 131 (88.5%) anal samples and 139 (94.0%) urine samples. Among the β-globin-positive samples, the HPV prevalence in anal and urine samples was 80.9% and 30.9%, respectively. High-risk HPV (HR-HPV) was detected in 57.3% of anal samples and 20.9% of urine samples. Among 122 adequate cytological samples, anal cytological abnormalities were observed in 99 cases (81.1%). Anal cytological tests revealed that atypical squamous cells of an undetermined significance (ASCUS) were detected in 57 (46.7%) patients, followed by low-grade squamous intraepithelial lesions (SIL) in 35 (28.7%), high-grade SIL in five (4.1%), and atypical squamous cells cannot exclude high-grade SIL (ASC-H) in two (1.6%), respectively. The nadir counts of CD4-positive T-lymphocyte less than 200 μL and anal HR-HPV infection were independent risk factors for anal cytological atypia over ASC-H. CONCLUSIONS: The present study demonstrated high HPV prevalence in the anus and urine, and showed a high incidence of anal cytological atypia associated with HR-HPV infections among HIV-infected MSM patients.
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