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Karyotype and NOR conservatism with heterochromatin reorganization in Neotropical Bryconids
(1996-01-01)
Cytogenetic studies on Bryconid fishes have shown the occurrence of karyotype and NOR conservatism and heterochromatin reorganization. The present data on three species representative of the migratory genus Brycon corroborate ...
Avaliação da técnica de coloração AgNOR em testículos de ovinos
(Universidade Federal de Minas Gerais, Escola de Veterinária, 2015-04-01)
The silver staining technique for AgNOR nucleolar organizer regions (NORs) is characterized by marking proteins linked to the ribosomal ribonucleic acid, evaluating cell proliferation. The aim was to study the validity of ...
Cell proliferation markers at the invasive tumor front of oral squamous cell carcinoma: comparative analysis in relation to clinicopathological parameters of patients
(Faculdade De Odontologia De Bauru - USP, 2017)
Objectives: To evaluate the number of AgNORs per nucleus and the expression of Ki-67 at the tumor invasion front (TIF) in relation to clinical parameters (TNM), TIF classification and the prognosis of oral squamous cell ...
Application of Natural Organic Residues as Adsorbents to Remove Lead from Waters
(2019-08-01)
The contamination of the environment by potentially toxic metals is highlighted by possible impacts of their high availability. Thus, the development of alternative absorbents that can be used in the remediation of ...
Impregnación Argéntica en secciones de Glicolmetacrilato para la demostración de NORs en ápices radicales de Allium cepa (Alliaceae)
(Sociedad Argentina de Botánica, 2003-12)
Las regiones organizadoras del nucléolo (NORs) son bucles de ADN, los cuales transcriben para la síntesis de ARN ribosomal. Los NORs se pueden demostrar con técnicas de plata, ya que las proteínas asociadas a los NOR son ...
Cytogenetic analysis of three sea catfish species (Teleostei, Siluriformes, Ariidae) with the first report of Ag-NOR in this fish family
(Sociedade Brasileira de Genética, 2010-01-01)
Despite their ecological and economical importance, fishes of the family Ariidae are still genetically and cytogenetically poorly studied. Among the 133 known species of ariids, only eight have been karyotyped. Cytogenetic ...
Cytogenetic analysis of three sea catfish species (Teleostei, Siluriformes, Ariidae) with the first report of Ag-NOR in this fish family
(Sociedade Brasileira de Genética, 2010-01-01)
Despite their ecological and economical importance, fishes of the family Ariidae are still genetically and cytogenetically poorly studied. Among the 133 known species of ariids, only eight have been karyotyped. Cytogenetic ...
Argyrophilic nucleolar organizer regions (AgNORs) in odontogenic myxoma (OM) and ameloblastic fibroma (AF)
(2001-08-29)
Ten cases of odontogenic myxoma (OM) and six cases of ameloblastic fibroma (AF) were subjected to comparative analysis by the AgNOR technique, in order to determine a possible difference in cell proliferation index between ...
Quantitative analysis of AgNOR proteins in exfoliative cytology specimens of oral mucosa from smokers and nonsmokers
(Sci Printers & Publ Inc, 2008-02-01)
OBJECTIVE: To determine the cell proliferation rate and possible effects of cigarette smoking on the oral mucosa lining through analysis of silver-stained nucleolar organizer regions (AgNORs) in exfoliative cytology ...