Argyrophilic nucleolar organizer regions (AgNOR) in tumours of pharynx and larynx

Association between Ag-NOR dots and immunohistochemical markers in different grades of breast ductal carcinoma

“…Two experienced cytopathologists independently evaluated the proliferation index based on the stained slides 5 . The study spanned the entire period during which patients attended the histopathology laboratory at Omdurman Teaching Hospital.…”

“…After examination of the section under microscope, the results of laboratory investigation as well as the demographic data from the patients was analyzed. [1][2][3][4][5][6] Ethical approval was secured from the Al Neelain University Ethical Research Committee, in line with the Declaration of Helsinki Principles. Consent for sample and data collection was obtained from hospital administration, recognizing the challenges associated with retrospective consent for archived samples.…”

Evaluation of the Cytological Changes of the Oral Mucosa Among Smokers in Al Madinah Al Munawara Using Argyrophilic Nucleolar Organizer Region (AgNOR) Counts and Papanicolaus Stain

“…Ki-67's estimates of the proliferation rate and the proportions of S-phase and mitotic cells all correlate with Argyrophilic nucleolar organizer region (AgNOR). Consequently, the NOR are loops of ribosomal DNA present in the nucleoli of cells on the short limbs of acrocentric chromosomes 13, 14, 15, 21, and 22 [ 4 ].…”

“…Small black specks scattered around the nucleolus after silver staining can be used to identify AgNORs. Quantitatively, AgNORs are a marker of cell proliferation based on their abundance in the nucleus [ 4 ]. It is a complementary diagnostic technique that has many advantages, including quick and easy execution, low cost, diagnostic safety, efficacy, and noninvasiveness.…”