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Expression of BCL-2 in the developing kidney of human embryos and fetuses qualitative and quantitative study
V. Lichnovský, B. Erdösová, K. Punkt, M. Zapletal
Jazyk angličtina Země Česko
Typ dokumentu časopisecké články, práce podpořená grantem
- MeSH
- cytofotometrie MeSH
- dřeň ledvin embryologie MeSH
- embryo savčí MeSH
- embryonální a fetální vývoj * MeSH
- geny bcl-2 * MeSH
- gestační stáří MeSH
- kůra ledviny embryologie MeSH
- ledviny cytologie embryologie MeSH
- lidé MeSH
- plod MeSH
- protoonkogenní proteiny c-bcl-2 analýza MeSH
- vývojová regulace genové exprese * MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Twelve human embryos and fetuses aged of 7-30 weeks of intrauterinal life were examined to determine the expression of bcl-2 gene in the developing kidney. Tissue samples were routinely processed and three-step indirect immunohistochemical method was used for the detection of Bcl-2 protein. End-point cytophotometry was performed with computer-controlled microscope photometer with a scanning table and the mean relative absorbance of the final product of peroxidase reaction was determined and taken as a measure of Bcl-2 expression. The morphometric evaluation was carried out from the TV display using Weibel s universal hexagonal raster and we determined the relative volume of Bcl-2 positive structures in the various zones of the embryonal kidney. The aim of our research was mapping of the Bcl-2 occurrence in the developing kidney of human embryos and fetuses. The Bcl-2 protein is involved in the regulation of apoptosis and its effect is antiapoptotic. The highest Bcl-2 expression was proved in the cells of metanephrogenic blastema. The lower occurrence of Bcl-2 positive cells was demonstrated in proximal tubules analges+ and it was almost on the borderline of detection in branches of ureteral bud. In the fetal period the marked Bcl-2 expression was maintained in the epithelial cells of proximal tubules analges.
Institute of Anatomy University of Leipzig Germany
Institute of Histology and Embryology Faculty of Medicine Palacký University Olomouc Czech Republic
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- $a Twelve human embryos and fetuses aged of 7-30 weeks of intrauterinal life were examined to determine the expression of bcl-2 gene in the developing kidney. Tissue samples were routinely processed and three-step indirect immunohistochemical method was used for the detection of Bcl-2 protein. End-point cytophotometry was performed with computer-controlled microscope photometer with a scanning table and the mean relative absorbance of the final product of peroxidase reaction was determined and taken as a measure of Bcl-2 expression. The morphometric evaluation was carried out from the TV display using Weibel s universal hexagonal raster and we determined the relative volume of Bcl-2 positive structures in the various zones of the embryonal kidney. The aim of our research was mapping of the Bcl-2 occurrence in the developing kidney of human embryos and fetuses. The Bcl-2 protein is involved in the regulation of apoptosis and its effect is antiapoptotic. The highest Bcl-2 expression was proved in the cells of metanephrogenic blastema. The lower occurrence of Bcl-2 positive cells was demonstrated in proximal tubules analges+ and it was almost on the borderline of detection in branches of ureteral bud. In the fetal period the marked Bcl-2 expression was maintained in the epithelial cells of proximal tubules analges.
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