title: Effects of genistein on the expression of hepatic genes in two rat strains (Sprague-Dawley and Wistar).
abstract: Information about the effects of phytoestrogens in the liver, the main organ of metabolism, is limited. In this study we have examined the dose dependent effects of the phytoestrogen genistein (GEN) on gene expression in rat liver in comparison to the potent estrogen ethinylestradiol (EE). Special attention was paid to strain specific differences between Wistar- (WIS) and Sprague-Dawley rats (SD). EE as well as GEN stimulated the gene expression of insulin like growth factor binding protein 1 (IGFBP-1), similarly in both strains. The mRNA expression of Vitamin D dependent calcium-binding protein (CaBP9k) was stimulated by EE in both strains but more pronounced in WIS rats. Interestingly GEN stimulates CaBP9k gene expression only in SD rats. Gene expression of apolipoprotein AI (ApoAI) was not affected in both strains neither by EE nor by GEN. These results are indicative of strain specific differences in the response of liver genes to GEN or EE.
authors.affiliation: Institut für Zoologie, Molekulare Zellphysiologie und Endokrinologie, Technische Universität Dresden, 01062 Dresden, Germany.
authors.forename: Renate-B
authors.initials: RB
authors.lastname: Geis
authors.forename: Patrick
authors.initials: P
authors.lastname: Diel
authors.forename: Gisela H
authors.initials: GH
authors.lastname: Degen
authors.forename: Günter
authors.initials: G
authors.lastname: Vollmer
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D016632:Apolipoprotein A-I / Q000096:biosynthesis; D004997:Ethinyl Estradiol / Q000494:pharmacology; D005260:Female; D005786:Gene Expression Regulation / Q000187:drug effects*; D019833:Genistein / Q000494:pharmacology*; D008099:Liver / Q000187:drug effects*; D051381:Rats; D017207:Rats, Sprague-Dawley; D017208:Rats, Wistar; D064030:S100 Calcium Binding Protein G / Q000096:biosynthesis
chemical_list: D000970:Antineoplastic Agents; D016632:Apolipoprotein A-I; D064030:S100 Calcium Binding Protein G; D004997:Ethinyl Estradiol; D019833:Genistein