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Long-term nifedipine treatment reduces calcium overload in isolated reperfused hearts of diabetic rats.

Abstract
1. Streptozotocin-induced diabetic rats showed poor post-ischemic recovery in isolated working rat hearts. 2. Diabetic rats showed myocardial Na+ accumulation after ischemia, and Ca2+ level and water content elevation after reperfusion. 3. A 6-wk nifedipine treatment improved post-ischemic recovery of cardiac parameters and prevented myocardial Na+ accumulation after ischemia and myocardial Ca2+ level and water content elevation after reperfusion of diabetic rats. 4. Results suggest that nifedipine treatment improves cardiac dysfunction in the reperfused ischemic hearts of diabetic rats through normalization of the Na+-Ca2+ imbalance and water content.
AuthorsS Higa, M Shimabukuro, T Shinzato, F Nagamine, K Murakami, N Takasu
JournalGeneral pharmacology (Gen Pharmacol) Vol. 26 Issue 8 Pg. 1679-86 (Dec 1995) ISSN: 0306-3623 [Print] ENGLAND
PMID8745156 (Publication Type: Journal Article)
Chemical References
  • Calcium Channel Blockers
  • Streptozocin
  • Sodium
  • Nifedipine
  • Calcium
Topics
  • Animals
  • Calcium (metabolism)
  • Calcium Channel Blockers (pharmacology)
  • Diabetes Mellitus, Experimental (metabolism)
  • Male
  • Myocardial Reperfusion
  • Myocardium (metabolism)
  • Nifedipine (pharmacology)
  • Perfusion
  • Rats
  • Rats, Sprague-Dawley
  • Sodium (metabolism)
  • Streptozocin

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