Based on the result of oral 75 g glucose tolerance test (OGTT),55 pregnant women during the second trimester (gestational age 24-28 weeks) were selected and divided into gestational diabetes mellitus (GDM)group (n =25) and normal glucose tolerance (NGT) group (n =30).Women with GDM were older than those in NGT group.Blood glucose and insulin levels during the OGTT,incremental area under the glucose curve (AUCGLU) and insulin curve (AUCINs) during the OGTT,and basic insulin secretion index (HOMA-β) in the GDM group were higher compared with those in NGT group (P＜0.05).However,in GDM group,insulin sensitivity index (ISI-Matsuda),dynamic insulin secretion index(Stumvoll 1-and 2-phase insulin secretion indices),and insulin secretion-sensitivity index (ISSI)were lowered (all P＜ 0.05),so was AUCINS/AUCGLU (P ＜ 0.01),as compared with those in NGT group.Blood glucagon levels during OGTF and incremental area under the glucagon curve (AUCGL) showed no significant differences between 2 groups (P ＞ 0.05).Multiple linear regression analysis showed that ISI-Matsuda,ISSI,HOMA-β,Stumvoll 1-and 2-phase insulin secretion indices accounted partially for the change of plasma glucose and ISI-Matsuda was the most important one among them.The function of islet α-cell seems to be normal while the function of β-cell is impaired in the patients with GDM,and failure of insulin secretion to overcome insulin resistance is the main reason for GDM.

Objective To analyze and study the implication of dynamic changes in plasma CD62P among patients with obstructive jaundice and cholecystolithiasis.Methods A total of 58 patients diagnosed with choledocholithiasis and jaundice were included in the obstructive jaundice group,and 50 patients were in the cholecystolithiasis group.Peripheral venous blood was collected on preoperative day 3,on opera-tive day,and on postoperative days 3,6,9,12,15,18,and 21 in two groups,and the concentrations of plasma CD62P were measured by ELISA.Comparison of continuous data between the two groups was made by t test.Results The concentrations of plasma CD62P from preop-erative day 3 to postoperative day 18 were significantly higher in the obstructive jaundice group than in the cholecystolithiasis group (P<0.01 across all time points).In the cholecystolithiasis group,the concentrations of plasma CD62P significantly increased on operative day, and the increase continued and reached the peak on postoperative day 3,then followed by a decrease down to the preoperative level on post-operative day 9.In the obstructive jaundice group,the concentrations of plasma CD62P reached the peak on postoperative day 9,followed by a gradual decrease down to the preoperative level on postoperative day 18 and to an even lower level (preoperative level of patients with cho-lecystolithiasis)on postoperative day 21.Conclusion Extrahepatic biliary obstruction may lead to endothelial cell injury and platelet acti-vation,the condition of which is improved with the relief of obstruction.The surgery for obstructive jaundice may lead to much more endothe-lial cell injury and higher platelet activation than that for cholecystolithiasis.

Objective To observe effect of TNF-? on PPAR?2 mRNA expression in 3T3-L1 cells transfected with human recombinant adiponectin. Methods The 3T3-L1 preadipocytes were transfected with the recombinant plasmid pcDNA3.1+-hADPN.The PPAR?2 mRNA expression was quantitated by semi-quantitative RT-PCR. Results (1)Compared with controls(the 3T3-L1 cells and the 3T3-L1 cells with plasmid), the PPAR-?2 mRNA expression of 3T3-L1 cells with human recombinant adiponectin was higher(P

Objective To investigate the effects of the mouse bone marrow cell mutation induced by vechile exhaust. Methods The mice were divided into two groups. The experimental group exposed to car exhaust, after exposure of given days (15 d, 30 d, 45 d, 60 d), bone marrow micronucleus and SCE rates in the experimental group were compared with the control. Results Significant differences had been seen between the two groups in bone marrow micronucleus and SCE rates except the 15 d group. The rate of the bone marrow cell mutation was positively correlated to the periods of exposure to car exhaust. Conclusion Car exhaust has effect of mutation on mouse cells.

OBJECTIVE:To investigate the current situation of anticoagulant therapy for patients with non-valvular atrial fibril-lation,and to provide reference for standardized anticoagulant therapy. METHODS:A total of 1056 patients with non-valvular atri-al fibrillation were collected from our hospital during Jul. 2015-Jun. 2016. According to 2012 European Society of Cardiology Guide-lines for the Management of Atrial Fibrillation,the risks of thrombosis and hemorrhage were evaluated,and the standardized anti-coagulant therapy was also evaluated. RESULTS:Among 1056 patients with non-valvular atrial fibrillation,the number of patients with thrombosis risk score ≥1 was 1028,accounting for 97.3%. 763 patients received antithrombosis therapy,and only 139 pa-tients were given warfarin anticoagulant therapy. The international normalized ratio(INR)of prothrombin time in just 30.9% of pa-tients receiving warfarin was in line with the standard before discharge. CONCLUSIONS:The anticoagulant therapy for patients with non-valvular atrial fibrillation is still not optimistic,and effective measure should be adopted to improve the standardization of anticoagulant therapy in the patients with atrial fibrillation.

Soft-tissue deformation is one of the important research directions in virtual surgery. Mass-spring model and finite-element model are the two most important modeling technology of the soft tissue modeling. It is very important for the current soft-tissue deformation modelling to analysize, to summarize the main idea, the influence factors and the modeling route of the two kinds of modeling methods and then to give comprehensive review.
Computer Simulation ; Humans ; Models, Biological ; Surgery, Computer-Assisted ; methods ; User-Computer Interface

Objective To assess the diagnostic value of glycosylated hemoglobin A1c (HbA1c) ≥6.5％ for diabetes in Chinese adults with oral glucose tolerance test(OGTT) as the reference standard.Methods Major databases were searched to get all diagnostic tests with HbA1c ≥ 6.5％ for diabetes in Chinese adults.QUADAS items were used to evaluate the quality of the eligible studies.Meta-disc software was used to perform comprehensive quantitative assessment for all included studies and summary ROC (SROC) curve were drawn.Results A total of 11 studies were included.The outcomes of the diagnostic value with HbA1c ≥6.5％ were as the following:pooled sensitivity 0.62 (95％ CI:0.60-0.64),pooled specificity 0.96 (95％ CI:0.95-0.96),diagnostic odds ratio (DOR) 40.25 (95％ CI:20.79-77.95) and AUCSROC 0.7702 (sx =0.0636).Conclusions The diagnostic specificity is pretty high for the diagnostic test with HbA1c ≥6.5％,while sensitivity is low.Combination of HbA1c and glucose tests is needed to reduce the missed diagnosis rate.

The association of serum nesfatin-1 levels with insulin resistance and pancreatic β-cell function in gestational diabetes mellitus was investigated.Oral glucose tolerance test(OGTT) was performed in ninety pregnant women from 24,to 28 gestational weeks.They were divided into three groups according to OGTT:45 nomal controls,27 gestational diabetes mellitus with fasting plasma glucose (FPG) of 5.1 mmol/L to 7.0 mmol/L (GDM1),18 gestational diabetes mellitus with FPG more than 7.0 mmol/L (GDM2).Serum nesfatin-1 levels were significantly higher in patients with GDM1 and GDM2 than in controls (P＜0.01),and in GDM2 group it was also higher than GDM1 group(P＜0.05).Fasting serum nesfatin-1 was positively correlated with FPG,30 min plasma glucose,1 h plasma glucose,2 h plasma glucose,homeostasis model assessment for insulin resistance,and PGAUC,but negatively correlated with homeostasis model assessment for β-cell function.Furthermore,multiple stepwise regression analysis showed that FPG was the independent influencing factor of serum nesfatin-1 level.Nesfatin-1 was positively correlated with insulin resistance,while negatively correlated with pancreatic β-cell function.Nesfatin-1 may play a role in the pathogenesis of gestational diabetes mellitus.

AIM: To investigate the antagonistic effect of zinc on hepatic ischemia- reperfusion (HIR) injury and the effect of zinc on the expression of adhesion molecules in rat liver to clarify the mechanisms involved. METHODS: After zinc supplementation (5 ?mol/kg bw,po) , the changes in hepatocellular morphology,ALT and AST activities in serum,MDA levels in serum,and expression of ICAM-1,VCAM-1 in liver of the animals subjected to HIR were examined. RESULTS: The results showed that HIR (30 minutes of ischemia followed by 90 minutes of reperfusion) significantly increased ALT, AST activities and MDA levels in serum. The destruction of hepatic structure was observed in HIR rats. In the mean time, the expression of adhesion molecule was enhanced.After zinc administration, ALT and AST activities in serum and MDA levels in serum were all decreased. The structure of hepatocyte was nearly normal.The further experiment showed that adhesion molecule expression was suppressed.CONCLUSION: These results indicate that zinc may protect liver against ischemia-reperfusion injury by inhibiting the production of free radicals and the expression of adhesion molecule.

Effects of Cu2+,Zn2+and Mn2+ on responses to ACh were studied with toad rec-tus abdominis. Cu2+, Zn2+and Mn2+concentra-tion- dependently shifted the concentration-response curves for ACh to the right unparallelly and reduced the maximal response considerably. The pAh values of Cu2+ , Zn2+ and Mn2+ were 3.69, 2.95 and 2. 62, respectively. The inhibitory potent of Cu2+ and Zn2+ seemed to be 11.7 times and 2. 1 times respectively more thanthat of Mn2+. It was suggested that Cu2+, Zn2+ and Mn2+postsynaptically interfere with the action of ACh. However, Zn2+in lower concentration shifted the bottom section of the curve for ACh to the left and top, and shifted the top section of the curve to the right, suggesting that Mn2+in lower concentration be possessed of partial agonistic property.