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  • Title: [The role of HPV E6/E7 mRNA combined with P16/ki67 immunocytochemistry in the diagnosis of atypical squamous cells of undetermined significance(ASCUS)].
    Author: Zhan X, Wang S, Wu X, Qiu X, Li F, Zeng Y, Chen Z.
    Journal: Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi; 2018 Oct; 34(10):937-941. PubMed ID: 30554588.
    Abstract:
    Objective To investigate the diagnostic value of human papillomavirus (HPV) E6/E7 mRNA combined with P16/antigen KI-67(ki67) immunocytochemical double staining in the atypical squamous cells of undetermined significance (ASCUS). Methods A total of 272 patients were selected and the results of HPV E6/E7 and P16/ki67 immunocytochemical double staining in the remaining cytological specimens were retrospectively analyzed. HPV E6/E7 gene was detected by HPV E6/E7 gene detection kit and Panther molecular diagnostic instrument. P16/ki67 was detected by immunocytochemical staining and Ventana Benchmark Ultra immunohistochemical staining instrument. Then we analyzed the difference of positive rate between the two detection methods in the same grade of cervical epithelial lesions, explored the difference of the two detection methods and their combined detection in the diagnosis of high grade squamous intraepithelial lesions (HSIL), and finally evaluated the role of different detection methods in shunt diagnosis of ASCUS. Results Histopathological findings of cervical cytology ASCUS includes chronic cervicitis, low-grade squamous intraepithelial lesions (LSIL), HSIL and cervical cancer. The positive rate of simple molecular diagnosis or immunocytochemical staining increased with the severity of cervical lesions. In cervicitis and LSIL lesion group, the difference between the positive rates of the two methods was obvious, but in HSIL and cervical cancer lesion group, there was no significant difference between the positive rates of the two methods. The sensitivity, specificity, Yoden index, coincidence rate, positive predictive value and negative predictive value were 95.65%, 85.40%, 0.81, 87.13%, 57.14% and 98.97%, respectively. Conclusion The detection of HPV E6/E7 and P16/ki67 immunocytochemical staining has certain significance in ASCUS shunt diagnosis. The combined detection of HPV E6/E7 and P16/ki67 can significantly improve the sensitivity of shunt diagnosis and maintain a good specificity.
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