نتایج جستجو برای: ascus
تعداد نتایج: 726 فیلتر نتایج به سال:
This study aimed to evaluate the performance and cost of using polymerase chain reaction (PCR) and hybrid capture in the detection of cervical intraepithelial neoplasia (CIN) in patients with cytological abnormalities (ASCUS/lowgrade squamous intraepithelial lesion – LSIL), and the feasibility of implementing these methods in Brazil’s Unified National Health System (SUS). Colposcopy gave a nega...
BACKGROUND We examined risk of newly detected human papillomavirus (HPV) infection and cervical abnormalities in relation to HPV type 16/18 antibody levels at enrollment in PATRICIA (Papilloma Trial Against Cancer in Young Adults; NCT00122681). METHODS Using Poisson regression, we compared risk of newly detected infection and cervical abnormalities associated with HPV-16/18 between seronegati...
BACKGROUND We recently reported, using a receiver operating characteristic area metric, the first meta-analytic comparison of the relative accuracy of cervical and anal cytology in detecting moderate or severe histopathologic lesions by magnification directed punch biopsy. The aim of the present research was to meta-analytically examine cut-point specific operating characteristics (sensitivity,...
OUR successive nuclear divisions occur during ascus development in Neurospora tetrasperma. The first two divisions are meiotic; the last two, mitotic. Previous cytological studies of ascus development have emphasized primarily the importance of the second and third divisions, during which rather elaborate mechanisms of nuclear movement provide that descendants of each of the two nuclei separate...
The degree to which evolutionary outcomes are historically contingent remains unresolved, with studies at different levels of the biological hierarchy reaching different conclusions. Here we examine historical contingency in the origin of two evolutionary novelties in bryozoans, a phylum of colonial animals whose fossil record is as complete as that of any major group. In cheilostomes, the domi...
OBJECTIVE Diagnoses of atypical squamous cells of undetermined significance (ASCUS) and low-grade squamous intraepithelial lesions (LSIL) are common, but the corresponding risk of disease varies by human papillomavirus (HPV) status, complicating management strategies. Our aim was to estimate the longer-term risk of cervical intraepithelial neoplasia grade 2 or worse (CIN2+) among women with ASC...
BACKGROUND The appropriate management of women with minor cytologic lesions in their cervix is unclear. We performed a meta-analysis to assess the accuracy of human papillomavirus (HPV) DNA testing as an alternative to repeat cytology in women who had equivocal results on a previous Pap smear. METHODS Data were extracted from articles published between 1992 and 2002 that contained results of ...
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