ABSTRACT
Objective: To establish the quality standard for Ehong capsules.Methods: A TLC was adopted to identify safflower, pueraria and prepared Radix Polygoni Multiflori.The contents of hydroxyl-safflor yellow A and puerarin in Ehong capsules were determined by a dual wavelength HPLC.A Wondasil C 18-WR (250 mm× 4.6 mm ,5 μm) was used as the analytical column, the mobile phase was composed of methanol acetonitrile-0.7% phosphoric acid aqueous solution (16∶3∶81), the flow rate was 1.0 ml·min-1 ,the detection wavelength was 403 nm for hydroxy safflower yellow A and 250 nm for puerarin.The column temperature was 30℃.Results: The TLC spots were clear and well-separated without negative interference.The calibration curves of hydroxyl-safflor yellow A and puerarin were linear over the ranges, the average recovery was 101.02% and 100.03% , and the RSD was 1.43% and 2.40% (n =6), respectively.Conclusion: The method is fast and accurate with good specificity, which can be used for the quality control of Ehong capsules.
ABSTRACT
Objective The comparison research of protective effect between intravenous infusion injection of safflor yellow and hydroxyl safflor yellow A on acute myocardial ischemia injury in rats. Methods Qualified 60 male Wistar rats were divided into 5 groups at random (12 in each group):Blank control group, AMI model (treated with normal saline) group, intravenous infusion injection of safflor yellow (90 mg/kg) group, HSYA low dosage (20 mg/kg) group and high dosage (40 mg/kg) group. The acute myocardial ischemia injury in rats was induced by ligating the anterior descending coronary artery in Wistar rats and administered different dosage of safflor yellow and hydroxyl safflor yellow A with intraperitoneal injection. Myocardial infarction degree (MID) was calculated by detecting myocardial infarction area with nitroblue tetrazolium(NBT) assay. The changes of ST-elevation, CK-MB, cTnT, SOD activities and MDA contents were detected and analyzed. Results The intravenous injection of safflor yellow and HSYA low dosage group can significantly decreased ST-elevation [difference is (0.087?.022)mv,(0.091?.014)mv],MID[difference is (20.13?.17)%,(18.36+9.38)%], CK-MB [difference is (1460.70+219.73)U/L, (1472.72?85.61)U/L], cTnT[difference is (2.345?.883)ng/ml, (2.358?.843)ng/ml], and MDA [difference is(5.71 ?.67) mmol/ml, (5.76?.84)mmol/ml] contents in serum, increased SOD[difference is(58.27?.99)U/ml,(56.49+5.19)U/ml]activities in serum.Conclusion It showed that intra venous injection of safflor yellow and hydroxyl safflor yellow A had the same protective effect on acute myocardial ischemia injury in rats. Hydroxyl safflor yellow A is an important portion of safflor yellow.
ABSTRACT
Objective To investigate the vascular effect of hydroxyl-safflor yellow A(HSYA) on rat thoracic aorta and its underlying mechanism. Methods The tension of isolated thoracic aorta rings of rats perfused with different concentrations of HSYA(1?10-6-1?10-4 mol/L) was measured using organ bath technique.The effects of HSYA on the vasocontraction induced by cumulative phenylephrine(PE)(1?10-6-1?10-4 mol/L),KCl(6?10-2 mol/L) and CaCl2(1?10-5-3?10-3 mol/L) were recorded respectively. Results HSYAcaused a concentration-dependent anti-contraction effects by KCl or PE in endothelium-intact and endothelium-denuded aortic rings.HSYA inhibited the CaCl2-induced contraction and downward shifted concentration-response curve of aortic rings.HSYA+HP resulted in more significant anti-contraction effect than single use of HSYA(P0.05).There were significant differences in anti-contraction effect between HSYA+RR and RR or HSYA(P