Effects of diabetes on ischemic/reperfusion injury and cell apoptosis in rats myocardium via alterations in peroxynitrite / 中国病理生理杂志
Chinese Journal of Pathophysiology
;
(12)1999.
Article
in Chinese
| WPRIM
| ID: wpr-529417
ABSTRACT
AIM:
To determine the effects of different-term streptozotocin(STZ)-induced diabetes on ischemia/reperfusion(I/R)injury and cell apoptosis in rats myocardial via alterations in myocardial peroxynitrite.METHODS:
The models of I/R injury were induced by occlusion and reperfusion of the left descending coronary artery(LDCA)in rats.I/R-induced infarct size was determined using triphenyltetrazolium chloride(TTC)staining.Quantified caspase-3 expression was used to represent apoptosis by Western blotting analysis.Peroxynitrite formation as indicated by nitrotyrosine level was measured by morphometric analysis.RESULTS:
Two weeks after STZ treatment,infarct size(35.00%?3.00%)was smaller in 2 weeks diabetic hearts(2WKD)as compared with time-matched control group(2WKC)(51.00%?3.30%),whereas after 16 weeks of diabetes(16WKD),the infarct size(61.00%?3.00%)was bigger in the diabetic hearts as compared with the 16WKC group(50.00%?2.00%,P
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Pathophysiology
Year:
1999
Type:
Article
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