Hawthorn Protects Against Experimentally Induced Heart Attack
Tincture of Crataegus (TCR), an alcoholic extract of the berries of hawthorn (Crataegus oxycantha), is used in herbal and homeopathic medicine. The present study was done to investigate the protective effect of TCR on experimentally induced myocardial infarction in rats. Pretreatment of TCR, at a dose of 0.5 mL/100 g bodyweight per day, orally for 30 days, prevented the increase in lipid peroxidation and activity of marker enzymes observed in isoproterenol-induced rats (85 mg kg(-1) s. c. for 2 days at an interval of 24 h). TCR prevented the isoproterenol-induced decrease in antioxidant enzymes in the heart and increased the rate of ADP-stimulated oxygen uptake and respiratory coupling ratio. TCR protected against pathological changes induced by isoproterenol in rat heart. The results show that pretreatment with TCR may be useful in preventing the damage induced by isoproterenol in rat heart.
Jayalakshmi R, Niranjali Devaraj S. Cardioprotective effect of tincture of Crataegus on isoproterenol-induced myocardial infarction in rats. J Pharm Pharmacol. 2004 July Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600 025, India.