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OBJECTIVE:To study the protective effects of Li medicine Chushi qufeng decoction on arthritis model rats. METH-ODS:60 rats were randomly divided into normal group,model group,positive group and Chushi qufeng decoction high-dose,me-dium-dose and low-dose groups [45.9,22.95,11.48 g(crude drug)/kg]. Except for normal group,those groups were given chicken type Ⅱ collagen to induce arthritis model. After modeling,normal group and model group were given normal saline intragastrical-ly,once a day,for consecutive 12 d;Chushi qufeng decoction groups were given relevant medicine intragastrically;positive group was given leflunomide 4.5 mg/kg on 1st-3rd day and 1.8 mg/kg on 4th-12th day. The degree of joint lesion in rats were scored. The degree of joint swelling was determined as well as the serum levels of TNF-α,IL-1β and type Ⅱ collagen antibody. RESULTS:Compared with normal group,arthritis index,degree of joint swelling,the serum levels of TNF-α,IL-1βand typeⅡcollagen anti-body increased significantly in model group (P<0.01). Compared with model group,pathological score of positive group and Chushi qufeng decoction high-dose group decreased significantly,and serum levels of TNF-α,IL-1β and type Ⅱ collagen antibody decreased significantly in treatment groups(P<0.05 or P<0.01). CONCLUSIONS:Li medicine Chushi qufeng decoction has cer-tain protective effect on arthritis model rats induced by chicken typeⅡcollagen.
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We proposed a two-dimensional deformation analysis method in regional ventricular wall motion by using tagged magnetic resonance (MR) images to evaluate the wall functions. In a region surrounded by four image slices, a material point is traced to obtain the displacement and strains. MR images were taken 24 phases over one cardiac cycle in the long and short axes of heart.
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Humans , Finite Element Analysis , Image Processing, Computer-Assisted , Methods , Magnetic Resonance Imaging , Methods , Myocardial Contraction , Physiology , Stress, Mechanical , Ventricular Function, Left , PhysiologyABSTRACT
OBJECTIVE: To establish an HPLC method for the determination of Matrine in Baishan tablets. METHODS: The analytical column was Aminopropyl (200 mm?4.6 mm, 10 ?m) with mobile phase consisted of acetonitrile-0.5% phosphate solution - ethanol(100∶8∶10) at a flow rate of 1.0 mL?min-1. The column temperature was set at 30 ℃ and the detection wavelength was set at 220 nm. RESULTS: The linear range of Matrine was 0.27～ 8.66 ?g(r=0.999 8) and the average recovery of Matrine was 99.52 %(RSD=0.91%,n=6). CONCLUSION: The method is simple, accurate and reproducible, and it is applicable for the quality control of Baishan tablets.
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Objective To explore the imaging differential diagnosis of vascular malformations and intermediary character hemangiomas.Methods The roentgenographic,CT and MRI findings of vascular malformations and intermediary character hemangiomas in 58 cases were analysed retrospectively.Results In 42 cases with vascular malformations,the lesions were irregular with definite margins,and 5 cases showed the bone compressed adjacent to the lesions.31 patients studied with MRI ,3 cases appeared as hyperintensity(equal to fat) and 28 cases appeared as mixed hyperintensity(higher than that of fat) on T2WI,20 cases showed circular markedly vessel-like hyperintensity on T2WI .In 16 cases with intermediary character hemangiomas,7 cases showed circular soft tissue masses,the masses were lobulated in 8 cases and "crab nail" in 1 case,5 cases showed edema of around the tumors and occupying effect on CT and MRI,3 cases showed bone corroded adjacent to the lesions,2 cases showed bony destruction.Of the 11 patients studied with MRI,the lesions showed hyperintensity on T2WI.Conclusion The imaging findings of vascular malformations and intermediary character hemangiomas are different.