Detection of Low Risk Genotypes of Human Papilloma Virus 6 and 11 in Patients with Cervicitis by Real Time PCR Assay

Abstract

The human papillomavirus (HPV) infection is one of the most prevalent sexually transmitted disease. The low risk genotypes of Human Papilloma Virus such as 6, 11, 40, 42, 43, 44, 54, 61, 70, 72 and 81 are mainly associated with benign genital warts and rarely leading to cancer. This study has been undertaken for detection of the occurrence of HPV 6 and 11 in patients with cervicitis depending on Real-Time PCR assay. Patients and methods: A total of 100 females (80 patients and 20 healthy females); ages (range from19- 62 years) were included and studied during the period from December 2014 to April 2015. They included 80 (80%) patients were diagnosed at private clinic in Ramadi from patients with different cervical lesions and healthy females: (health individuals 20 (20%).Real time-PCR technique was done for DNA extracted from these samples. Result: The mean range for age showed that patients with cervical lesion from patient with pap smear samples were (31.63 ± 6.12), polyp samples (30.32 ± 8.35), ulcer samples was (31.52 ± 10.70), while the wart samples (30.19 ± 7.38), Leukemia patients have wartic lesion samples was (30.50 ± 2.52). No significant difference between age and location results for the other groups (P > 0.05). The purity of DNA from clinical specimen was (1.39 ± 0.23). There was extracted DNA from clinical specimens regarding purity or DNA concentration at which (P > 0.05). These results showed that the rate of HPV 6/11 DNA detection in different clinical samples were statistically significant for the patient group (P = 0.0005). In addition to that, the distribution of positive and negative HPV 6/11 between patients and control is also significant (P=0.002). Conclusion: The low risk genotypes of HPV 6 and 11 have a significant role in patients with cervicitis. The prevalence rate of Low-Risk HPV genotype 6 was found to be (17.5%), while that of HPV genotype 11 was (12.5%).