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  • Title: [Amplified DNA detection of HPV types 16 and 18 DNA in cervical scrapes by polymerase chain reaction].
    Author: Ohta S, Nagai N, Fujimoto H, Kioka H, Fujiwara A.
    Journal: Nihon Sanka Fujinka Gakkai Zasshi; 1991 Sep; 43(9):1241-7. PubMed ID: 1919186.
    Abstract:
    Cervical scrapes from 43 patients (12 with chronic cervicitis, 13 with dysplasia, 11 with carcinoma in situ and 7 with invasive carcinoma) were examined by the polymerase chain reaction (PCR), to detect the amplified E7 gene of the HPV types 16 and 18 DNA sequence. HPV types 16 and/or 18 DNA were detected in 25 of 43 cases by the PCR (type 16 in 16, type 18 in 8, and both types 16 and 18 in 1). In comparison with the results for histological grades, the positive rate significantly increased as the grade of cervical dysplasia became higher. All cases were also examined with a HPV detection kit, the "Vira Pap" which contains 32P-labeled mixed RNA probes complimentary to HPV types 6, 11, 16, 18, 31, 33, 35 DNA. Six of 18 cases in which HPV DNA were not detected by the Vira Pap were positive for HPV types 16 and/or 18, so that the PCR was a highly sensitive method compared to the Vira Pap. The PCR has some advantages: 1. it requires only a small amount of specimens and 2. paraffin-embedded sections can also be used. We suggest that the PCR is a useful method for the screening and for retrospective investigation of HPV infection.
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