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More about Estrogen on impaired cardiac glucose uptake in cardiac hypertrophy

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Book synopsis

The aim of the study was to determine whether estrogen improves the impaired cardiac glucose uptake in cardiac hypertrophy which could provide a mechanism to explain the prevention of cardiac hypertrophy by estrogen using spontaneously hypertensive rats (SHR). To examine this ovariectomized (OVX) and ovariectomized estradiol-implanted (OVX-E2) SHR rats were analyzed. At the end of the treatment the degree of cardiac hypertrohy, serum hormone levels, cardiac glucose uptake by FDG-PET and GLUT4 localization and expression, and cardiac hexokinase activity were analyzed. Results revealed that estrogen substitution inhibits uterine atrophy and cardiac hypertrophy in OVX+E2 group compared to OVX. PET analysis showed a significant increase in myocardial glucose uptake in OVX+E2 compared to OVX group. Confocal microscopy and western blotting demonstrated higher GLUT4 translocation on plasma membrane in E2 treated rat heart. Micro-array gene expression analysis showed differentially expressed genes that are involved in the mTOR signaling pathway which is known to be activated during cardiac hypertrophy.

Book details

Book category Books in English Mathematics & science Biology, life sciences

• Full title: Estrogen on impaired cardiac glucose uptake in cardiac hypertrophy
• Author: Vijayakumar Govindaraj
• Language: English
• Binding: Paperback
• Number of pages: 84
• EAN: 9783639714678
• ISBN: 3639714679
• ID: 07171288
• Publisher: Scholars' Press
• Weight: 136 g
• Dimensions: 229 × 152 × 5 mm
• Date of publishing: 30. April 2014

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