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http://hdl.handle.net/10201/22504
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Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Cardani, R. | es |
dc.contributor.author | Zavanella, T. | es |
dc.date.accessioned | 2011-06-30T12:00:39Z | - |
dc.date.available | 2011-06-30T12:00:39Z | - |
dc.date.issued | 2005 | - |
dc.identifier.issn | 0213-3911 | es |
dc.identifier.uri | http://hdl.handle.net/10201/22504 | - |
dc.description.abstract | There is some evidence that rodent hepatocarcinogenesis is accompanied by changes in the adrenergic responsiveness of liver cells to catecholamines. In this study, immunohistochemical expression of ß1-adrenergic receptors (ß1-ARs) has been examined in spontaneous and chemically induced preneoplastic and neoplastic liver lesions of female and male Fischer 344 rats. An antibody specific for ß1-AR subtype was used. The study was carried out on archival formalin-fixed and paraffin-embedded livers from rats used in a previous study of hepatocarcinogenesis. One control group given distilled water by gavage, and two experimental groups, one initiated with a single dose of diethylnitrosamine (DEN) and one initiated with DEN and continuously treated with phenobarbital (PB) were examined. Rats were sacrificed after 2, 4, 8 and 21 months of experimentation. All types of liver putative preneoplastic lesions examined (basophilic, glycogenretaining, or mixed cell foci) show a lower density of ß1- ARs than the surrounding normal liver parenchyma, either in control and in DEN-treated or DEN+PB-treated rats. No immunostaining is detectable in several altered cell foci. Hepatocellular adenomas and hepatocellular carcinomas also show a very low density of ß1-ARs, extensive areas completely devoid of ß1-ARs being mingled with areas showing a weak immunostaining. | es |
dc.format | application/pdf | es |
dc.format.extent | 8 | es |
dc.language | eng | es |
dc.publisher | Murcia : F. Hernández | es |
dc.relation.ispartof | Histology and histopathology | es |
dc.rights | info:eu-repo/semantics/openAccess | es |
dc.subject | Immunohistochemistry | es |
dc.subject | Rat liver | es |
dc.subject.other | CDU::6 - Ciencias aplicadas::61 - Medicina | es |
dc.title | Decreased density of ß1-adrenergic receptors in preneoplastic and neoplastic liver lesions of F344 rats | es |
dc.type | info:eu-repo/semantics/article | es |
Aparece en las colecciones: | Vol.20, nº 3 (2005) |
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Decreased density of B1adrenergic receptors in.pdf | 5,72 MB | Adobe PDF | ![]() Visualizar/Abrir |
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