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HPV infection among patients with high grade cervical intraepithelial neoplasia and squamous cell carcinoma of cervix

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Author(s): Yarandi F. | Izadi Mood N. | Eftekhar Z. | Niakan R. | Tajziachi S.

Journal: Tehran University Medical Journal
ISSN 1683-1764

Volume: 65;
Issue: Sup 2;
Start page: 2;
Date: 2007;
Original page

Keywords: human papilloma virus | high grade cervical intraepithelial neoplasia

ABSTRACT
Background: Cervical cancer is the second most common cancer of the women worldwide. It is also an important cause of cancer-related mortality in women, after breast cancer. Nearly half million of new cases are identified yearly. The incidence rate in developing countries is greater than the developed countries. Epidemiologic studies have shown that the association of genital human papilloma virus (HPV) with cervical cancer is strong, independent of other risk factors, and consistent in several countries. The aim of this study was to determine the frequency of HPV in patients with high grade cervical intraepithelial neoplasia (CINIII, CIN II) and squamous cell carcinoma (SCC) of cervix.Methods: Hundred specimens from patients with SCC and CINIII, CIN II, confirmed by histological review, referring to Mirza Koochak Khan Hospital from 1999-2004 were enrolled in a cross sectional study. Polymerase chain reaction was utilized for identification and typing of HPV DNA.  To increase the sensitivity of HPV detection, nested PCRs were performed using MY09/MY11 as outer and GP5/GP6 as inner primers.Results: It was possible to extract 77 of 100 specimens that HPV DNA was detected in 47 of 77 specimens. Infection with HPV was present in 32 specimens (86.5%) among SCC patients and in 15 specimens (37.5%) among CINIII, CIN II patients. The most frequent HPV types in SCC patients were HPV 16 and 18 (59.38%) and then 33 (34.38%) and in CINIII, CIN II patients was 16 (53.33%) and 18 (40%). the most frequent co-infection in both groups was HPV 16 and 18 which was present in 40.62% and 26.7% of cases respectively. Conclusions: The most frequent HPV types in patients with SCC and CINIII, CIN IIwas 16 and 18 that is identical to many other countries infection pattern.
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