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A model of hyperhomocysteine-induced endothelial dysfunction in rats
M V Korokin1, M V Pokrovskiy, O O Novikov
1Kursk State Medical University, Ministry of Health Care and Social Development of the Russian Federation, Russia. mkorokin@mail.ru
Bulletin of Experimental Biology and Medicine
|July 19, 2012
Summary
Methionine administration in rats significantly raises homocysteine levels, leading to endothelial dysfunction. This established model is suitable for testing drugs that protect the endothelium and heart.
Area of Science:
- Biochemistry
- Pharmacology
- Cardiovascular Science
Background:
- Elevated homocysteine is linked to endothelial dysfunction.
- Developing reliable models for studying this condition is crucial.
Purpose of the Study:
- To establish an animal model for hyperhomocysteinemia-induced endothelial dysfunction.
- To validate the use of methionine treatment for inducing this model.
Main Methods:
- Rats received intragastric methionine (3 g/kg/day) for 7 days.
- Homocysteine concentrations and endothelial dysfunction coefficient were measured.
Main Results:
- Methionine treatment significantly elevated plasma homocysteine levels.
- A notable increase in the endothelial dysfunction coefficient was observed.
- The methionine protocol effectively models hyperhomocysteinemia-induced endothelial dysfunction.
Conclusions:
- The described methionine treatment protocol is an adequate model for hyperhomocysteinemia-induced endothelial dysfunction.
- This model can be utilized to investigate the endothelio- and cardioprotective properties of various drugs.
