Please use this identifier to cite or link to this item: http://ahro.austin.org.au/austinjspui/handle/1/9973
Title: The combination of high dietary methionine plus cholesterol induces myocardial fibrosis in rabbits.
Authors: Zulli, Anthony;Hare, David L;Buxton, Brian F;Black, M Jane
Affiliation: Vascular Laboratory, Department of Cardiology, University of Melbourne, Austin Health, Heidelberg, Victoria, Australia
azulli@unimelb.edu.au
Issue Date: 27-Jul-2005
Citation: Atherosclerosis 2005; 185(2): 278-81
Abstract: Limited evidence suggests that myocardial fibrosis might be associated with dietary cardiovascular risk factors.To investigate the effects of high dietary cholesterol, methionine (the precursor to homocysteine), and the combination of the two diets on myocardial fibrosis.Rabbits were randomly allocated into four dietary groups for 12 weeks: control (Con), 1% methionine (Meth), 0.5% cholesterol (Chol) or 1% methionine plus 0.5% cholesterol (MethChol).Myocardial fibrosis was not significantly increased in Chol or Meth. However, interstitial fibrosis increased by 85% (p = 0.03) and perivascular fibrosis 28-fold (p < 0.01) in the MethChol group compared to Con.These results suggest that high levels of dietary cholesterol or methionine alone do not significantly increase myocardial collagen content. However, the combination of the two diets does cause myocardial fibrosis. Therefore, excessive cholesterol and methionine intake may be an important pathogenic factor in the development of myocardial fibrosis.
Internal ID Number: 16054151
URI: http://ahro.austin.org.au/austinjspui/handle/1/9973
DOI: 10.1016/j.atherosclerosis.2005.06.036
URL: http://www.ncbi.nlm.nih.gov/pubmed/16054151
Type: Journal Article
Subjects: Animals
Cholesterol, Dietary.adverse effects
Collagen.metabolism
Coronary Vessels.metabolism.pathology
Fibrosis
Male
Methionine.administration & dosage.adverse effects
Myocardium.pathology
Rabbits
Appears in Collections:Journal articles

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