| Molecular characterisation of neonatal cardiac hypertrophy and its regression. | |
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MedLine Citation:
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PMID: 15680071 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Neonatal cardiac hypertrophy associated with diabetic pregnancy is transient and regresses naturally, but is associated with increased morbidity and mortality. This study was undertaken to analyse the changes in expression of 5 cardiac genes, including atrial natriuretic peptide, alpha- and beta-myosin heavy chain, and cardiac and skeletal alpha-actin genes, using a rat neonatal model, in which cardiac hypertrophy was induced via maternal diabetes. In the hypertrophied left ventricle of neonates from diabetic mothers, the levels of mRNA from all the above genes except skeletal alpha-actin were increased by between 1.8- and 12-fold compared with the controls at birth (p < 0.05). In the first 28 days, the level of mRNA for alpha-myosin heavy chain increased slightly, while that for atrial natriuretic peptide and beta-myosin heavy chain decreased continuously similar to the controls, but at a significantly faster rate. No significant difference between the two groups of neonates was observed in all 5 genes after 1 month, indicating complete regression. Expression of 5 cardiac genes in the neonatal cardiac hypertrophy was characterised in both hypertrophic and regressive phases. Hypertrophic regression provides a unique model for the testing of new drugs or genetic modifying factors in cardiac hypertrophy. |
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Authors:
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Bamini Gopinath; Ronald J Trent; Bing Yu |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Cardiology in the young Volume: 14 ISSN: 1047-9511 ISO Abbreviation: Cardiol Young Publication Date: 2004 Oct |
Date Detail:
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Created Date: 2005-01-31 Completed Date: 2005-06-14 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9200019 Medline TA: Cardiol Young Country: England |
Other Details:
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Languages: eng Pagination: 498-505 Citation Subset: IM |
Affiliation:
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Department of Molecular and Clinical Genetics, Royal Prince Alfred Hospital, and Central Clinical School, The University of Sydney, NSW, Australia. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Actins
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genetics* Animals Animals, Newborn Atrial Natriuretic Factor / genetics* Cardiomegaly / genetics* Disease Models, Animal Female Pregnancy Pregnancy in Diabetics RNA, Messenger / analysis Rats Rats, Sprague-Dawley Time Factors Ventricular Myosins / genetics* |
| Chemical | |
Reg. No./Substance:
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0/Actins; 0/RNA, Messenger; 85637-73-6/Atrial Natriuretic Factor; EC 3.6.1.-/Ventricular Myosins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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