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Year : 2023  |  Volume : 13  |  Issue : 1  |  Page : 17-25

L-carvone attenuates myocardial injury and dyslipidemia in rats with isoproterenolinduced cardiac hypertrophy

Department of Biochemistry, PSG College of Arts and Science, Coimbatore -641 014, Tamil Nadu, India

Correspondence Address:
Victor Arokia Doss
Department of Biochemistry, PSG College of Arts and Science, Coimbatore -641 014, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2221-1691.367687

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Objective: To explore the therapeutic efficacy of L-carvone from Mentha spicataL. leaf extracts against isoproterenol-induced cardiac hypertrophy in rats. Methods: Isoproterenol (5 mg/kg) was injected intraperitoneally into rats for one month to induce cardiac hypertrophy. L-carvone (25 and 100 mg/kg) was administered orally to treat cardiac hypertrophy. The cardioprotective activity of L-carvone was evaluated by electrocardiogram, histopathological analysis as well as determination of biochemical parameters and enzymatic markers. Results: L-carvone from Mentha spicata L. at 25 and 100 mg/kg ameliorated isoproterenol-induced cardiac hypertrophy, as evidenced by reduced QRS interval on electrocardiogram, and decreased heart weight and heart index. In addition, both doses of L-carvone markedly lowered the levels of glucose, total protein, low-density lipoprotein cholesterol, aspartate transaminase, alanine transaminase, lactate dehydrogenase, creatine kinase MB, troponin-I, N-terminal pro-B type natriuretic peptide and triglycerides while increasing high-density lipoprotein cholesterol and lipase level (P<0.05). Moreover, L-carvone alleviated contraction band necrosis, and reorganized the myofibrils with normal striations and myocytes as well as normal nuclei in cardiac histoarchitecture of rats with isoproterenol-induced cardiac hypertrophy. Conclusions: L-carvone from Mentha spicata L. leaf extract can restore abnormal cardiac function and may be further explored as a therapeutic agent against the deleterious effects of cardiac hypertrophy after further evaluation.

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