Mostrando ítems 1-10 de 1084
Analysis of CDKN1A polymorphisms: markers of cancer susceptibility?
(Cancer Genetics and Cytogenetics, 2003-04-15) [Artigo]
The CDKN1A (TP21)(2) gene encodes a 21-kD protein that is a critical downstream mediator of wild-type TP53 and an important regulator of the cell cycle. Failure in the function of this gene would be expected to result in ...
Evaluation of fitness components in strains of Drosophila mulleri carrying different genotypes for an esterase
(Cytobios, 2001-01-01) [Artigo]
Several fitness components in strains of Drosophila mulleri carrying the slow or the fast alleles for the major beta esterase (esterase-4) found in this species, as well as in heterozygous flies in which the slow or fast ...
RELEASE OF VARIABILITY THROUGH RECOMBINATION OF DROSOPHILA-MELANOGASTER X-CHROMOSOMES, WITH SEX-LIMITED EFFECT
(Revista Brasileira de Genética, 1981-01-01) [Artigo]
Pattern of nucleolar activity during spermiogenesis in triatomines (Heteroptera, Reduviidae) as analysed by silver staining
(Cytobios, 1997-01-01) [Artigo]
Nucleoli are the sites of biosynthesis of ribosomal precursors. In this work the nucleolar activity at interphase and the meiotic cells of the testis in five species of triatomines were analysed by means of silver staining. ...
Effects of maternal diabetes on male offspring: high cell proliferation and increased activity of MMP-2 in the ventral prostate
(Cell And Tissue Research, 2014-10-01) [Artigo]
This study presents a comprehensive view of the histological and functional status of the prostate of adult rat offspring of mothers subjected to gestational diabetes induced by alloxan. The ventral prostate of male adult ...
Ultrastructural characteristics of spermatogenesis in Pallas's mastiff bat, Molossus molossus (Chiroptera: Molossidae)
(Microscopy Research and Technique, 2012-07-01) [Artigo]
Despite the large number of species, their wide distribution, and unique reproductive characteristics, Neotropical bats have been poorly studied, and important aspects of the reproduction of these animals have not been ...
Experimental endocrine therapies promote epithelial cytodifferentiation and ciliogenesis in the gerbil female prostate
(Cell and Tissue Research, 2007-06-01) [Artigo]
The incidence of ciliated cells in the prostate gland of the female gerbil (Meriones unguiculatus) is uncommon and apparently becomes more frequent during androgen (testosterone cypionate) and anti-estrogen (letrozole) ...
Blood Sampling in Testudinidae and Chelidae.
(Herpetological Review, 2012-03-01) [Artigo]
Aneuploidies, deletion, and overexpression of TP53 gene in intestinal metaplasia of patients without gastric cancer
(Cancer Genetics and Cytogenetics, 2004-09-01) [Artigo]
Gastric carcinogenesis is attributable to interacting environmental and genetic factors, through a sequence of events including intestinal metaplasia. Using a fluorescence in situ hybridization technique, we investigated ...
Visceral colouration of Eupemphix nattereri (Anura: Leiuperidae): effects of NDP-α-melanocyte stimulating hormone
(Italian Journal of Zoology, 2013-08-02) [Artigo]
Amphibians have melanin-containing cells in visceral organs that are similar to pigmentary cells from the epidermis. Both of them are derived from the ectodermal neural crest. Epidermal cells respond to α-melanocyte ...