PMID: 2099087Jan 1, 1990Paper

Protective effect of 2-[p-(dimethylamino) styryl] pyridine methiodide (DSPM) on acute experimental myocardial ischemia

Yao xue xue bao = Acta pharmaceutica Sinica
Y WeiK J Zhang

Abstract

ip DSPM 5 mg/kg 1 or 4 h before excision of the heart was found to prevent damage to the heart due to global myocardial ischemia. Compared with the controls, the heart rate, coronary resistance, contractile force and edema of the heart were all greatly improved during the 60 min reflow after 25 min of no-flow, especially the heart pretreated with DSPM 4 h prior to excision. In addition, DSPM 1.5, 6 mg/kg markedly reduced the myocardial Ca2+ content measured by isoproterenol in mice. DSPM at higher dosage also lowered the normal myocardial Ca2+ content. These results suggest that DSPM may have a protective effect on myocardial ischemia which might be associated with its calcium antagonistic action.

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