Protective effect of Terminalia chebula against lysosomal enzyme alterations in isoproterenol-induced cardiac damage in rats.
Mots clés
Abstrait
BACKGROUND
Terminalia chebula is an ayurvedic drug recommended for the treatment of heart diseases. Earlier studies by the authors validated the beneficial cardioprotective effect of T chebula against isoproterenol-induced myocardial infarction.
OBJECTIVE
To evaluate the therapeutic efficacy of T chebula in protecting against isoproterenol-induced lysosomal membrane damage.
METHODS
Lysosomal enzyme activities from the serum, heart and lysosomal fractions were determined. The triphenyltetrazolium chloride assay was used to confirm the protective effect of T chebula on the myocardium.
RESULTS
Isoproterenol administration produced significant cardiac damage (as seen by the triphenyltetrazolium chloride assay) and significantly altered lysosomal enzyme activities. Pretreatment with an ethanol extract of T chebula was found to retain near normal activities of lysosomal enzymes in rats given T chebula or T chebula plus isoproterenol compared with rats given isoproterenol alone.
CONCLUSIONS
Pretreatment with T chebula extract stabilizes the lysosomal membrane and, thus, may have prevented myocardial damage.
