Results 231 to 240 of about 2,921 (283)

Silver stain reveals nucleolus organizer regions on a satellited Yq chromosome

Human Genetics, 1978
Chromosomes from a patient with a satellited Yq were stained with a silver procedure that differentially stains nucleolus organizer regions. The Yqs stained heavily in all cells examined, indicating the presence of ribosomal cistrons at this region.
W M, Howell, P N, Howard-Peebles, B M, Block, G R, Stoddard   +3 more
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Nucleolus-organizing regions of chromosomes in early embryogenesis of laboratory mice

Bulletin of Experimental Biology and Medicine, 1983
Selective silver staining was used to study optimal conditions for demonstration of nucleolus organizer regions (NORs) of chromosomes in early embryogenesis of the laboratory mouse. The NORs were not observable during the first cleavage division. During the second cleavage, 1-7 NORs per metaphase were demonstrable. The time course of NORs demonstration
E L, Patkin, A V, Sorokin
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[Nucleolus organizer regions (NORs) in metastasizing pleomorphic adenoma].

Anales de la Facultad de Odontologia, 1992
The metastasizing pleomorphic adenoma of the salivary glands is a rare variant of pleomorphic adenoma with a benign microscopical appearance, but malignant biological behaviour and production of metastasis. The histopathological study with the routine techniques is not enough for disclosing the nature of these tumors and they are most of the times ...
G, Landini, M, Kitano, A, Urago
openaire   +1 more source

Nucleolus organizer regions and nucleoli

Human Genetics, 1983
H G, Schwarzacher, F, Wachtler
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[Nucleolus organizer regions in pathomorphologic tumor diagnosis].

Veroffentlichungen aus der Pathologie, 1992
Morphology and biological behaviour of tumours are closely related to each other and are the main objects of diagnostic tumour pathology. Anaplasia, for example, a well-known cytomorphological criterion of malignancy, is however only an indirect sign of impaired cellular growth control mechanisms.
openaire   +1 more source

Nucleolus Organizer Region In Robertsonian Translocation

Clinical Genetics, 1978
M. Mikkelsen, A. Basli, H. Poulsen
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[Chromosome nucleolus organizer regions of the African green monkey].

Tsitologiia, 1980
The silver staining Ag-I for detection of nucleolar organizer regions (NOR) in the African green monkey chromosomes was used. NOR were situated on the secondary constrictions of one pair of homologous marker chromosomes and consisted of two parts. A block of condensed chromatin was seen in the middle of the despiralized portion corresponding to the ...
V I, Stobetskiĭ, T M, Orlova, V P, Grachev, L L, Mironova   +3 more
openaire   +1 more source

[Value of nucleolus organizer regions (AgNORs) in dermatologic oncology].

Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete, 1995
Nucleolus-organizing regions (Ag-NORs) are silver-stained loops of DNA transcribing to ribosomal RNA. Quantitative analysis helps to differentiate normal tissue from malignant tissue and can be used for diagnosis in several kinds of tumours. The analysis of AgNORs can also be used in dermatopathology for diagnostic and prognostic purposes.
A, Pfau, F, Eckert, T, Schröpfer, J, Rüschoff   +3 more
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Regulation of ribosomal RNA gene copy number, transcription and nucleolus organization in eukaryotes

Nature Reviews Molecular Cell Biology, 2023
Christoph Engel
exaly  

Nucleolus organizer regions on chromosomes of the domestic dog

Journal of Heredity, 1982
E, Kopp, B, Mayr, W, Schleger
openaire   +2 more sources