BACKGROUND Herbal medicine has a long history of use in the prevention and treatment of disease and is becoming increasingly popular globally.However,there are also widespread concerns about its safety.Among them,the ...BACKGROUND Herbal medicine has a long history of use in the prevention and treatment of disease and is becoming increasingly popular globally.However,there are also widespread concerns about its safety.Among them,the cardiotoxicity of aconitine has been described.CASE SUMMARY We report a case of a 61-year-old male with aconitine poisoning presenting with malignant arrhythmia and severe cardiogenic shock,which was successfully managed with aggressive advanced life support and heart transplantation.CONCLUSION This is the first case wherein in vivo cardiac pathology was obtained,confirming that aconitine caused acute myocardial necrosis.展开更多
Objective: To evaluate the cardioprotective effect of Nigella sativa L.(N.sativa) in isoproterenol-induced myocardial infarction(MI).Methods: Groups were treated with different doses of ethanol extract of N.sativa(EEN...Objective: To evaluate the cardioprotective effect of Nigella sativa L.(N.sativa) in isoproterenol-induced myocardial infarction(MI).Methods: Groups were treated with different doses of ethanol extract of N.sativa(EENS)and N.sativa oil alone and along with enalapril for 28 days.MI was induced by subcutaneous administration of isoproterenol(85 mg/kg) in two consecutive doses.Levels of cardiac biomarkers and antioxidant enzymes such as creatine kinase–N-acetyl-L-cysteine, lactate dehydrogenase, aspartate aminotransferase, malondialdehyde, superoxide dismutase, reduced glutathione and catalase were evaluated along with gross histopathological examination.Results: Isoproterenol(85 mg/kg) induced MI by causing the significant(P < 0.01)reduction in the activity of cardiac biomarkers(creatine kinase–N-acetyl-L-cysteine,lactate dehydrogenase, aspartate aminotransferase) and antioxidant markers(superoxide dismutase, catalase, glutathione) along with significant(P < 0.01) increase in the level of malondialdehyde.Furthermore, histopathological evaluation also confirmed the isoproterenol-induced MI.Pretreatment with EENS(800 mg/kg) and combination of EENS(800 mg/kg) with enalapril(1 mg/kg) significantly(P < 0.01) prevented the development of these alteration and restored activity of cardiac biomarkers as well as antioxidant markers almost near to normal levels.Histopathological evaluation of cardiac tissue further confirmed the restoration of biochemical activity.Conclusions: Experimental findings thus indicate that EENS(800 mg/kg) demonstrated cardioprotective effect against isoproterenol-induced MI by restoring cardiac biomarkers and antioxidant status.展开更多
An experimental model of hypertensive diabetes in SD rats was established. Eight animalsin each group were respectively killed at the end of the sixth, eithg and tenth month of the experimentalperiod. The heart change...An experimental model of hypertensive diabetes in SD rats was established. Eight animalsin each group were respectively killed at the end of the sixth, eithg and tenth month of the experimentalperiod. The heart changes were dynamically observed under light microscope and transmissive electronmicroscope. The arteriolar walls were thickened with lumina narrowed. Degeneration, necrosis andfibrosis (substitutional and interstitial) of the myocardium were found also.Adiscussion is given on morphological pathgenesis of dilatod cardiomyopathy.展开更多
An experimental model of hypertensive diabetes in SD rats was established. Eight animalsin each group were respectively killed at the end of the sixth, eithg and tenth month of the experimentalperiod. The heart change...An experimental model of hypertensive diabetes in SD rats was established. Eight animalsin each group were respectively killed at the end of the sixth, eithg and tenth month of the experimentalperiod. The heart changes were dynamically observed under light microscope and transmissive electronmicroscope. The arteriolar walls were thickened with lumina narrowed. Degeneration, necrosis andfibrosis (substitutional and interstitial) of the myocardium were found also.Adiscussion is given on morphological pathgenesis of dilatod cardiomyopathy.展开更多
基金Supported by Dongguan Science and Technology of Social Development Program,No.202050715001213.
文摘BACKGROUND Herbal medicine has a long history of use in the prevention and treatment of disease and is becoming increasingly popular globally.However,there are also widespread concerns about its safety.Among them,the cardiotoxicity of aconitine has been described.CASE SUMMARY We report a case of a 61-year-old male with aconitine poisoning presenting with malignant arrhythmia and severe cardiogenic shock,which was successfully managed with aggressive advanced life support and heart transplantation.CONCLUSION This is the first case wherein in vivo cardiac pathology was obtained,confirming that aconitine caused acute myocardial necrosis.
基金the University Grants Commission,New Delhi (Grant No.7-268/2009 BSR) for fellowship
文摘Objective: To evaluate the cardioprotective effect of Nigella sativa L.(N.sativa) in isoproterenol-induced myocardial infarction(MI).Methods: Groups were treated with different doses of ethanol extract of N.sativa(EENS)and N.sativa oil alone and along with enalapril for 28 days.MI was induced by subcutaneous administration of isoproterenol(85 mg/kg) in two consecutive doses.Levels of cardiac biomarkers and antioxidant enzymes such as creatine kinase–N-acetyl-L-cysteine, lactate dehydrogenase, aspartate aminotransferase, malondialdehyde, superoxide dismutase, reduced glutathione and catalase were evaluated along with gross histopathological examination.Results: Isoproterenol(85 mg/kg) induced MI by causing the significant(P < 0.01)reduction in the activity of cardiac biomarkers(creatine kinase–N-acetyl-L-cysteine,lactate dehydrogenase, aspartate aminotransferase) and antioxidant markers(superoxide dismutase, catalase, glutathione) along with significant(P < 0.01) increase in the level of malondialdehyde.Furthermore, histopathological evaluation also confirmed the isoproterenol-induced MI.Pretreatment with EENS(800 mg/kg) and combination of EENS(800 mg/kg) with enalapril(1 mg/kg) significantly(P < 0.01) prevented the development of these alteration and restored activity of cardiac biomarkers as well as antioxidant markers almost near to normal levels.Histopathological evaluation of cardiac tissue further confirmed the restoration of biochemical activity.Conclusions: Experimental findings thus indicate that EENS(800 mg/kg) demonstrated cardioprotective effect against isoproterenol-induced MI by restoring cardiac biomarkers and antioxidant status.
文摘An experimental model of hypertensive diabetes in SD rats was established. Eight animalsin each group were respectively killed at the end of the sixth, eithg and tenth month of the experimentalperiod. The heart changes were dynamically observed under light microscope and transmissive electronmicroscope. The arteriolar walls were thickened with lumina narrowed. Degeneration, necrosis andfibrosis (substitutional and interstitial) of the myocardium were found also.Adiscussion is given on morphological pathgenesis of dilatod cardiomyopathy.
文摘An experimental model of hypertensive diabetes in SD rats was established. Eight animalsin each group were respectively killed at the end of the sixth, eithg and tenth month of the experimentalperiod. The heart changes were dynamically observed under light microscope and transmissive electronmicroscope. The arteriolar walls were thickened with lumina narrowed. Degeneration, necrosis andfibrosis (substitutional and interstitial) of the myocardium were found also.Adiscussion is given on morphological pathgenesis of dilatod cardiomyopathy.
