Protective Effects of 17-Methoxyl-7-hydroxy-benzene-furabcgakcone on Isoproterenolinduced Ventricular Remodeling in Mice

Objective To investigate the effects of 17-methoxyl-7-hydroxy-benzene-furabcgakcone( MHBFC) on isoproterenol-induced ventricular remodeling in mice. Methods Isoproterenol(ISO) was given subcutaneously(1 mg·kg- 1,twice per day for 7 d) to induce ventricular remodeling in mice. Mice were divided into normal control group,model group,captopril group,MHBFC low and high-dose groups. 65 mg·kg- 1captopril was given by intragastric administration in captopril group,2. 5,5. 0 mg·kg- 1MHBFC were given by intravenous injection in MHBFC low and high-dose groups. At the end of the7th day,the hearts of the mice were weighted,and myocardial hypertrophy index was expressed as heart weight /body weight,double kidneys weight /body weight and lung weight /body weight(HW /BW,KW /BW and LW /BW). Colorimetric method was used to determine the content of hydroxyproline(Hyp) in heart,the activity of superoxide dismutase(SOD) and the content of malondialdehyde(MDA) in serum. The histological changes were observed by HE and Masson's staining,the changes of cross section area(CSA),collagen volume fraction,(CVF) and perivascular circumferential collagen area(PVCA) were determined.Results Compared with the model group,MHBFC potently inhibited cardiomyocyte hypertrophy,decreased the HW /BW,KW /BW and LW /BW,improved cardiac pathology changed,increased the of activity SOD,decreased the content of MDA in serum and the content of Hyp in heart tissue( P 0. 01 or P 0. 05),decreased the CVF and PVCA( P 0. 01).Conclusion MHBFC possesses protective effects against ISO-induced ventricular remodeling in mice,which may be related to its actions in reducing the oxidative stress and improving the antioxidant activity of the body.