Improvements in the silver-staining technique for nucleolar organizer regions (AgNOR).
نویسندگان
چکیده
منابع مشابه
Diagnostic value of silver nitrate staining for nucleolar organizer regions in selected head and neck tumors.
BACKGROUND The present study is aimed to assess the usefulness of silver nitrate staining of nucleolar organizer regions (NORs) as a quantitative criterion for the diagnosis of selected head and neck tumors. MATERIALS AND METHODS The silver nitrate staining technique was used on 195 paraffin blocks collected from 85 patients. The samples consisted of 21 squamous cell carcinoma (SCC) of larynx...
متن کاملFractal Analysis and the Diagnostic Usefulness of Silver Staining Nucleolar Organizer Regions in Prostate Adenocarcinoma
Pathological diagnosis of prostate adenocarcinoma often requires complementary methods. On prostate biopsy tissue from 39 patients including benign nodular hyperplasia (BNH), atypical adenomatous hyperplasia (AAH), and adenocarcinomas, we have performed combined histochemical-immunohistochemical stainings for argyrophilic nucleolar organizer regions (AgNORs) and glandular basal cells. After asc...
متن کاملApplication of AgNOR (Argyrophilic Nucleolar Organizer Regions) Staining in Distinction of Non Neoplastic and Neoplastic Endometrial Lesions
Study of AgNOR has been identified as a reliable indicator of cell proliferation and in turn, allows a clear distinction between benign, premalignant, and malignant epithelial changes. The aim of this study was to analyze and evaluate the application of AgNOR method as diagnostic tool in non-neoplastic and neoplastic lesions of endometrium. The study included evaluation of AgNOR staining on a t...
متن کاملNorethindrone scatters silver-stained nucleolar organizer regions of Ishikawa cells.
We investigated the effects of sex steroids on silver-stained nucleolar organizer regions (Ag-NORs) and DNA/RNA kinetics in Ishikawa cells. Norethindrone and its isomer norethynodrel exclusively caused Ag-NORs to scatter in the nuclear matrix, from the nucleolus. No such effect occurred with the other sex steroids tested, including progestational, androgenic, and estrogenic compounds. Nuclear a...
متن کاملVariation in the distribution of silver-staining nucleolar organizer regions on the chromosomes of the wild mouse, Mus musculus.
A silver staining method was used to analyze the distribution of nucleolar organizer regions (Ag-NORs) on chromosomes of 45 wild mice (Mus musculus). The four subspecies represented were M. m. musculus, M. m. molossinus, M. m. castaneus, and M. m. bactrianus. Ag-NORs were observed near the centromeric regions of 11 chromosomes (4, 8, 9, 10, 11, 12, 15, 16, 17, 18, and 19), indicating a preponde...
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ژورنال
عنوان ژورنال: Journal of Histochemistry & Cytochemistry
سال: 1993
ISSN: 0022-1554,1551-5044
DOI: 10.1177/41.3.8429207