RGD Reference Report - Estrogen receptor beta protects the murine heart against left ventricular hypertrophy. - Rat Genome Database

Send us a Message



Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   

Estrogen receptor beta protects the murine heart against left ventricular hypertrophy.

Authors: Babiker, FA  Lips, D  Meyer, R  Delvaux, E  Zandberg, P  Janssen, B  Van Eys, G  Grohe, C  Doevendans, PA 
Citation: Babiker FA, etal., Arterioscler Thromb Vasc Biol. 2006 Jul;26(7):1524-30. Epub 2006 Apr 20.
RGD ID: 1581018
Pubmed: PMID:16627800   (View Abstract at PubMed)
DOI: DOI:10.1161/01.ATV.0000223344.11128.23   (Journal Full-text)

BACKGROUND: Left ventricular hypertrophy (LVH) displays significant gender-based differences. 17beta-estradiol (E2) plays an important role in this process because it can attenuate pressure overload hypertrophy via 2 distinct estrogen receptors (ERs): ERalpha and ERbeta. However, which ER is critically involved in the modulation of LVH is poorly understood. We therefore used ERalpha-deficient (ERalpha-/-) and ERbeta-deficient (ERbeta-/-) mice to analyze the respective ER-mediated effects. METHODS AND RESULTS: Respective ER-deficient female mice were ovariectomized and were given E2 or placebo subcutaneously using 60-day release pellets. After 2 weeks, they underwent transverse aortic constriction (TAC) or sham operation. In ERalpha-/- animals, TAC led to a significant increase in ventricular mass compared with sham operation. E2 treatment reduced TAC induced cardiac hypertrophy significantly in wild-type (WT) and ERalpha-/- mice but not in ERbeta-/- mice. Biochemical analysis showed that E2 blocked the increased phosphorylation of p38-mitogen-activated protein kinase observed in TAC-treated ERalpha-/- mice. Moreover, E2 led to an increase of ventricular atrial natriuretic factor expression in WT and ERalpha-/- mice. CONCLUSIONS: These findings demonstrate that E2, through ERbeta-mediated mechanisms, protects the murine heart against LVH.



RGD Manual Disease Annotations    Click to see Annotation Detail View
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Esr2MouseLeft Ventricular Hypertrophy  IDA  RGD 

Objects Annotated

Genes (Mus musculus)
Esr2  (estrogen receptor 2 (beta))


Additional Information