Objective To investigate the genetic polymorphism of HPA-1 to-16 antigens in Zhejiang Han population.Methods A total of 120 samples from unrelated donors of Zhejiang were genotyped by Polymerase Chain Reaction with Sequence-Specific Primers(PCR-SSP).Results The allele frequencies of HPA-1b,-2b,-3b,-6bw,-15b were 0.0125,0.0542,0.3833,0.0125 and 0.4833,respectively.HPA-4b,-5b,-7bw,-8bw,-9bw,-10bw,-11bw,-12bw,-13bw,-14bw and-16bw alleles were not detected.The mismatch probability(MP) of HPA-3 and 15 were 0.36 and 0.37,respectively,in raneom platelet transfusion.Conclusion There is no difference of HPA polymorphism distribution between Han population in Zhejiang and those in other areas of China.The polymorphism of HPA-3 and-15 are more abundant than other HPA antigens,so they may cause alloimmunity in random platelet transfusion recipients and between mothers and fetuses.

Objective To study the effect of Tanggankang capsule treating liver trauma of diabetic mice.Methods Healthy Wistar rats are used in this trial. STZ are injected into the mice’s trail vein and they are fed with feed stuff with high quantity of heat. Eight weeks later, rats with blood sugar≥11.1mmol and disturbance of lipid metabolism are selected as diabetic model. 50 rats were randomly divided into five groups:low,moderate and high dosage groups;Metformin Hydrochloride and Glucurolactone control group。Every rat is given equal dosage by mouth once a day.After 6 weeks and 12 weeks, measure the blood sugar and lipid. At the 12th weeks, rats are sacrificed to weigh the liver and compute the liver coefficient and measure TC,LPO,ALT and AST. Results Tanggankang capsule has good therapeutic effect on treating hyperglycemia and disturbance of lipid metabolism for diabetic model; Tanggankang capsule can effectively prevent from the pathological change of diabetic fatty liver;what’s more,the more dosage and longer duration of drug,the stronger effect will appear,and the effect of large dosage is better than that of control group,thus the difference is remarkable (P

BACKGROUND:Mechanical factors can affect the angiogenic ability of vascular endothelial cells.How the vessel number affects the hydrodynamic properties of microvessels remains to be clarified. OBJECTIVE:To investigate the influence of vessel number on the hydrodynamics of vascular networks based on computational fluid dynamics. METHODS:Three three-dimensional models of vascular network with different vessel numbers were constructed using the Geometry module of ANSYS 19.0 software,and then the vascular network was meshed to tetrahedral elements in Mesh module.The vascular network was assumed to rigid wall without slip,and the blood was assumed to laminar,viscous,and incompressible Newtonian fluid.Blood density,velocity,and a series of blood viscosity coefficients were also established.The Navier-Stokes equation was used for calculation.Hydrodynamic properties of different parts of vascular network with different vessel numbers were analyzed and compared. RESULTS AND CONCLUSION:The streamline,velocity,and mass flow all had the same trend in the vascular network,that is,the outlet and inlet were higher and the middle junction of vascular network was lower.The more the number of vessels,the thinner the blood flow lines in each part of the vascular network.Also,the velocity,mass flow,and wall shear decreased with the increase of the number of blood vessels.Therefore,the changes in vessel number could influence the hydrodynamic environment in the vascular network.Computational fluid dynamics indicates that the changes in vessel numbers can influence the hydrodynamic properties of blood,and provides a new idea for treating bone hypoperfusion-induced diseases(fracture nonunion,bone defect,osteoporosis,etc.)through tonifying kidney and activating blood circulation based on the coupling between angiogenesis and osteogenesis.