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Assessment of Lactobacillus species colonizing the vagina of apparently healthy Nigerian women, using PCR-DGGE and 16S rRNA gene sequencing
Authors
Mathilde E. Boon
Nicodemus Butamanya
Joke A.M. Dols
Gregor Reid
Publication date
1 January 2012
Publisher
Scholarship@Western
Abstract
The Cellient™ Automated Cell Block System (Hologic) can be used to analyze cells of HPV-positive cervical scrapes staining positive with the biomarker p16. For this study fourteen cervical scrapes of Tanzanian women infected with HIV testing positive for HPV were selected. The paraffin Cellient sections were stained with the Papanicolaou method, with hematoxylin eosin (HE), and with the biomarker p16. This pilot study was limited to cases classified as atypical squamous lesion of unknown significance (ASCUS) and high-grade squamous lesion (HSIL) as diagnosed in the ThinPrep slide. The Cellient paraffin sections (cut from paraffin blocks prepared from the residual cervical sample) were classified into negative, atypical, CIN 1, CIN 2, and CIN 3. Multiple HPV genotypes were encountered in 79% of the scrapes. HPV16 was found in six scrapes and HPV52 in four. In the Papanicolaou sections, it was easy to detect dyskeratotic cells. Eleven of the 14 cases were p16 positive and five contained p16 positive dyskeratocytes. Of the 10 ASCUS scrapes, two contained p16 positive CIN 1 epithelial fragments. All four HSIL cases contained p16 positive CIN 3 epithelial fragments. In HIV-positive HPV-positive women, the Cellient system resulted in high quality histology sections with perfect p16 images of dyskeratocytes. © 2012 Boon et al.; Licensee Lifescience Global
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Last time updated on 12/04/2021