Human Papillomavirus Genotyping among Different Cervical Smears in Duhok/Iraq.

Asian Pac J Cancer Prev

Department of Microbiology, College of Medicine, University of Duhok, Iraq. Email:

Published: July 2019

Background/Objective: Cervical cancer ranks the second among the most common gynecologic cancers. This study was established to determine the distribution of cervical HPV genotypes among different Pap readings in Duhok/Iraq. Methods: Between January and September-2016, HPV-DNA was tested in 64 women. Genotyping was carried out by the hybridization reverse blot technique. Cervical smears were taken, performed by ThinPrep technique and stained by Pap stain. Results: Twenty six (40.6%) cases were positive for HPV, 12 (46.2%) in normal and 14 (53.8%) in abnormal Pap smears. 39 (19 high-risk and 16 low-risk) genotypes were identified. The high risk group comprised 6 HPV16, 4 HPV18, 2 HPV66, 2 HPV52, 2 HPV39, 1 HPV56, 1 HPV31 and 1 HPV45. The 16 low risk strains encompassed 4 HPV6 strains, 4 HPV71, 2 HPV54 and 2 HPV83, HPV11, HPV61 HPV84, and HPV62. Mixed infections were described in 4 women (6.25%), limited to the NILM, ASC-US and LSIL smears. They included variable admixtures of 7 high risk genotypes, HPV39 (both copies), HPV66 (both copies), HPV52, HPV31, HPV45 and 6 low risk strains: HPV83, HPV6, HPV11, HPV54, HPV62 and HPV71. Conclusions: The higher frequency of HR-HPV than the LR-HPV with identification of 4 mixed cases indicates that our women are at risk of developing cervical cancer. Detection of HR-HPV in NILM and ASC-US smears with restriction of some strains to these 2 categories highlights the great value of HPV genotyping as a surrogate test to pick up unscreened women at risk of developing cervical malignancy particularly when a proper screening program is absent.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6745234PMC
http://dx.doi.org/10.31557/APJCP.2019.20.7.2059DOI Listing

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