To study Fufangzhilong capsules(FFZLCs) against ischemic stroke in rats and to analyze the active components and the relative mechanism.Methods:The rat model of ischemic stroke was established by permanent bilateral common carotid artery ligation.SD rats were randomLy divided into a model group(MG),a sham operation group(SHAMG),a positive control group(PCG,0.09 g/kg),and FFZLC high and low-dose groups(0.9 and 0.3 g/kg),with 10 rats in each group.The corresponding drugs were given once a day by gavage for 8 weeks.Tumor necrosis factor-α(TNF-α),C-reaction protein(CRP),interleukin-6(IL-6),and interleukin-8(IL-8) in the serum and brain tissues of rats were determined by enzyme-linked immunosorbent assay(ELISA),and the water content in brain tissues was measured.The content of uracil,hypoxanthine,xanthine,uridine,hydroxysafflor yellow A,and salvianolic acid B in FFZLCs was determined by high-performance liquid chromatography HPLC.Results:As compared with the SHAMG,the water content in brain tissues and the expression of CRP,IL-6,IL-8,and TNF-α in the serum and brain tissues of the MG were significantly increased(P<0.05 or P<0.01).Compared with the MG,the FFZLC high and low-dose FFZLC groups,and the PCG significantly reduced the water content in brain tissues and the expression of CRP,IL-6,IL-8,and TNF-α in the serum and brain tissues of rats(P<0.05 or P<0.01).The HPLC analysis method of FFZLC was established.The linear relationship between the components in the corresponding concentration range was good.The average recovery of each component was between 97%~99%,and the relative standard deviation(RSD) was less than 2%.The average content of uracil,hypoxanthine,xanthine,uridine,hydroxysafflor yellow A,and salvianolic acid B(mg/g) in 3 batches of preparations were 0.588 4,0.668 1,1.272 8,0.361 5,3.485 2,and 7.508 6 mg/g,respectively,and the corresponding RSD was less than 2%.Conclusion:FFZLCs have a protective effect on rats with ischemic stroke,and the HPLC method of FFZLC can be used for the quality control of the preparation. |