ArticleMolecular and cellular biochemistry2025
The impact of combination of zofenopril and different diuretics on regression of myocardial reperfusion injury and oxidative status in spontaneously hypertensive rats.
Article in Molecular and cellular biochemistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
As several decades of research have shown the cardioprotective effects of angiotensin-converting enzyme (ACE) inhibitors alone or in combination with diuretics, we were interested in investigating the effects of subchronic therapy of these drugs on ischemia-reperfusion (I/R) damage to the heart, as well as their influence on oxidative status. The research was conducted on 40 spontaneously hypertensive male Wistar Kyoto rats, divided into 4 groups. Animals were treated for four weeks with 10 mg/kg/day zofenopril alone or in combination with hydrochlorothiazide, indapamide and spironolactone per os. After the treatment, hemodynamic measurements, echocardiography and assessment of myocardial function were performed according to Langendorff's retrograde perfusion method. The induced global ischemia model involved 20 min of ischemia followed by 30 min of reperfusion to the heart (I20:R30). Markers of oxidative stress were determined spectrophotometrically from plasma and erythrocyte lysates. Heart and kidney tissue samples were pathohistologically analyzed. Treatment with a combination of ACE inhibitors and diuretics significantly lowered blood pressure in spontaneously hypertensive rats, alleviated left ventricular hypertrophy and increased ejection fraction. On the other hand, treatment with zofenopril and diuretics showed pro-oxidative potential. Pathohistological analysis of heart and kidney tissue samples indicates that subchronic administration of antihypertensive agents does not lead to significant changes in these organs. Since the antihypertensive therapy was relatively short (only 4 weeks), in order to elucidate or deny the prooxidative mechanism, additional studies of a longer time interval are needed and planned.
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