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Retrospective study of the prevalence of high-risk human papillomaviruses among Croatian women

Milutin Gašperov, Nina; Sabol, Ivan; Halec, Gordana; Matovina, Mihaela; Grce, Magdalena (2007) Retrospective study of the prevalence of high-risk human papillomaviruses among Croatian women. Collegium Antropologicum, 31 (Supple). pp. 89-96. ISSN 0350-6134

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Abstract

The infection with human papillomavirus (HPV) is the necessary cause for cervical cancer. There are at least 15 high-risk (HR) HPV types that are significantly associated with progression of cervical intraepithelial neoplasia to cervical cancer. Since previous studies showed that the prevalence of HPV in cervical cancers varies among different geographic regions, we wanted to investigate the prevalence of HPV types in Croatia, especially low abundant HR HPV types. By means of consensus primers directed polymerase chain reaction (PCR), we analysed cervical DNA samples of 2, 136 Croatian women, mostly with abnormal cervical smears, in order to detect the presence of HPV. Type-specific primers were then used to determine low-risk (LR) HPV types 6/11 and HR HPV types 16, 18, 31, 33, 45, 52 and 58. Out of 2, 136 specimens, 1, 255 (58.8%) were positive for HPV. More than half of positive samples were typed (64.5%) and 35.5% still remained untyped. Multiple HPV infections were found in 10.3% of the cases. The most prevalent type, including both single and multiple infections, was HPV 16 with the prevalence of 15.9%, followed by HPV types 31, 6/11, 33, 18, 52, 45 and 58 with 8.7%, 7.1%, 4.5%, 3.8%, 2.3%, 1.2% and 1.1%, respectively. The significant increase of frequency from low-grade squamous intraepithelial lesions (LSIL) to high-grade squamous intraepithelial lesions (HSIL) was observed for HR HPV types 16, 18, 31 and 33 but not 45, 52 and 58. The frequency of unknown HPV types was almost the same in cervical specimens of women with LSIL and those with HSIL, 19.8% and 21.1%, respectively. The prevalence of HPV infection rate decreased significantly with patient age from 68.5% (age group 12 to 24 years) to 38.8% (age group 45 to 54 years). But, in women aged 55 or older the overall prevalence increased to 56.6%. Our results indicate that prevalence of HR HPV types in Croatia is similar to other countries. We suggest that HPV positive women in Croatia should be closely monitored by typing for HR HPV types: 16, 18, 31, 33, 45, 52 and 58.

Item Type: Article
Uncontrolled Keywords: human papillomavirus (HPV); high-risk (HR) types; Croatia
Subjects: BIOMEDICINE AND HEALTHCARE > Clinical Medical Sciences > Gynecology and Obstetrics
BIOMEDICINE AND HEALTHCARE > Public Health and Health Care > Epidemiology
Divisions: Division of Molecular Medicine
Depositing User: Ivan Sabol
Date Deposited: 16 Nov 2016 14:32
Last Modified: 16 Nov 2016 17:10
URI: http://fulir.irb.hr/id/eprint/2298

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