Intermittent Cold Stress Reducing the Collagen Content of Atherosclerotic Plaque in Experimental ApoE-/-Mice / 中国循环杂志
Chinese Circulation Journal
;
(12): 68-71, 2015.
Article
Dans Chinois
| WPRIM
| ID: wpr-462765
ABSTRACT
Objective:
To investigate the influence of intermittent cold stress on collagen content of atherosclerotic plaque in experimental ApoE-/-mice.Methods:
A total of 20 male ApoE-/-mice at 8 weeks of age were divided into 2 groupsExperimental group, the mice had intermittent cold exposure at (4 ± 1)°C from 8am to 12noon and Control group, the mice were living at (24 ± 2) °C. All animals were treated for 12 weeks, n=10 in each group. The collagen content of atherosclerotic plaque at the aortic root in ApoE-/-mice was observed by Masson staining, the protein expressions of aortic MMP-2, MMP-9 and TIMP-1 were examined by Western blot analysis.Results:
Compared with Control group, the Experimental group presented the lower collagen content of atherosclerotic plaque at the aortic root, higher protein expressions of MMP-2, MMP-9 and lower protein expression of TIMI 1.Conclusion:
Intermittent cold stress may disturb the balance of MMP/TIMP and decrease collagen content of atherosclerotic plaque to form vulnerable plaque in experimental ApoE-/-mice which may cause acute coronary syndrome.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
langue:
Chinois
Texte intégral:
Chinese Circulation Journal
Année:
2015
Type:
Article
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