Objective To study the relationship between transforming growth factor-β1 (TGF-β1), transforming growth factor-β receptor Ⅰ (TGF-βRⅠ) and high concentration iodine in promoting fibroblast proliferation so as to explore the pathogenesis of the membranous formation in Budd- Chiari syndrome. Methods The experiment included five groups: blank control group, solvent group, KI group, TGF-βRⅠinhibitor group (SD-208) and SD-208 plus KI combination group. ① Fibroblasts were cultured in high content of iodine and treated with TGF-βRI inhibitor then the fibroblast proliferation activity was determined by CCK-8 assy.②The protein expressions of TGF-β1 and TGF-βRⅠof fibroblasts in different concentrations of iodine (0, 250, 500, 1 000, 2 000 and 3 000 ug/L) were determined by Western-blot method. Results ①When the culture solution was of 1 000 ug/L iodine concentration, the cell proliferation rate of the SD-208 plus KI combination group (A:1.29 ± 0.41) was significantly higher than that of the control group (0.52 ± 0.10), but significantly lower than that of the KI group(1.70 ± 0.03) with P < 0.05. ② Fibroblast TGF-β1 protein relative expression levels in the groups with the iodine concentration of 1 000 ug/L and 2 000 ug/L were significantly higher than those of the other groups (P < 0.05). No significant difference in fibroblast TGF-βRⅠ protein relative expressions existed between each other groups (P > 0.05). Conclusion ①High concentration of iodine may promote the proliferation of fibroblasts through raising TGF - β1 protein expression. ② The proliferation of fibroblasts caused by high concentration of iodine may be related to the membranous formation in Budd-Chiari syndrome.

Objective In order to study the hemodynamics changes of the Budd Chiari syndrome vascular based on Computer Sim-ulation.Methods Three dimensional reconstruction model is established based on MRA medical images.Then take use of Ansys Fluent software to simulate hemodynamic parameters.Results Budd Chiari syndrome vascular model is established successfully. The hemodynamics changes on/above the vascular confluence of inferior vena cava with three main hepatic veins.Contract to the flow inlet of inferior vena cava,blood pressure becomes larger,the speed becomes slower and shear stress becomes smaller.Conclu-sion The inferior vena venous hemodynamics changes region is almost consistent with inferior vena venous predilection location. The study lays the groundwork for future study of Budd Chiari syndrome negotiations.