Objective To investigate the state of oxidative s tr ess in patients with different glucose tolerance and the relationship between ox idative stress and insulin resistance(IR).Methods The levels of serum superoxide dismutase (SOD) and malo ndiadehyde(MDA)were measured in subjects of controls,obesity,impaired glucose to lerance (IGT) and newly diagnosed type 2 diabetes mellitus(T2DM).Results Oxidative stress has already existed in obesity and IGT group.MDA level was negatively correlated with insulin sensitive index (ISI) an d SOD level was positively correlated with ISI(all P

BACKGROUND:In foreign animal experiments and clinical reports, microporous polysaccharide hemospheres are characterized as good hemostatic effect, no delayed bleeding, good biocompatibility, and no adverse reactions in the body. OBJECTIVE:To assess the efficacy and safety of microporous polysaccharide hemospheres on reducing blood loss after unilateral total hip arthroplasty. METHODS:Totaly 98 patients who received unilateral total hip arthroplasty due to femoral neck fractures, 39 males and 59 females, aged 61-77 years, were randomly divided into two groups: test group, treated with 1g microporous polysaccharide hemospheres before suture of wound; control group, treated with electric coagulation hemostasis before suturing. Drainage tubes were placed in the two groups. Hemoglobin, blood loss, alogeneic transfusion rate, drainage volume, coagulation index and incidence of deep venous thrombosis of the lower limbs were compared. RESULTS AND CONCLUSION:The total blood loss, drainage volume, and transfusion rate in the test group were significantly lower than those in the control group (P < 0.01), but there were no differences in D-dimer, platelet count, activated partial thromboplastin time and international normalized ratio between the two groups. One case of each group developed deep venous thrombosis of the lower limbs, and no significant difference was in the incidence of deep venous thrombosis between the two groups. No infection occurred. These findings indicate that microporous polysaccharide hemospheres that are safe, effective and convenient can reduce the visible and hidden blood loss after unilateral total hip arthroplasty.

In this paper, the classification of the upper limb rehabilitation robot was discussed and the research progress was overviewed.Finally, the prospects of upper limb rehabilitation robot were put forward.

Objective To detect the activity of α1 antitrypsin(AAT) with initial velocity of enzymatic reaction in order to detect the activity of samples in the process of separating and purifying plasma protein ,chromogenic substrate assay was optimized.Methods The effect of trypsin concentration and reaction time on enzymatic reaction was acquired by the kinetic monitoring mode of the microplate reader .Initial velocity was calculated to confirm the largest concentration of trypsin which was saturated by substrate .AAT was incubated with trypsin and absorbance produced by enzymatic reaction of remaining trypsin and substrate could reflect the activity of AAT .A standard curve was established with △D fitting with the activity of AAT standard.The activity of related samples was detected and the precision and accuracy of the method were evaluated . Results Trypsin concentration was 0.0625 mg/ml.Within 20 minutes, enzymatic reaction was with initial velocity .The range of the standard curve was 200-1200 IU/ml.Correlation coefficient was more than 0.99.The activity of Cohn Ⅳ, samples of pre-processing and elution were (720.59 ±18.63), (601.84 ±19.18),and (568.09 ±24.83)IU/ml, respec-tively.The relative standard deviation was less than 10%. Sample recovery rate was 90%-110%.Conclusion The optimized chromogenic substrate assay greatly improves accuracy and precision .The method can be used for the detec-tion of AAT activity of samples in laboratories and workshops .

Two human endometrial carcinoma cell lines, HEC-1-A and RL95-2, were treated with adiponectin,and then changes of cell count, apoptosis and cell cycle arrest were measured. The expression of phospho-AMPK(Thr172) and AMPK was determined by Western Blot. The results showed that adiponectin may exert direct anti-proliferative effects on HEC-1-A and RL95-2 cells by inducing cell cycle arrest and apoptosis, which may be mediated by AMPK pathway.

AIM To investigate the anti-atherosclerosis mechanisms of arecoline. METHODS Fifty-eight male rats were assigned to control, model, arecoline 1 mg?kg -1 and arecoline 5 mg? [FQ(12。46,X-WZ]-kg -1 groups randomly. The rats in model and arecoline-supplied groups were fed with hypercholesterol diet. The following variables were measured: HE staining of rat aorta; serum level of TC, LDL-CHO, HDL-CHO, IL-8, ET-1 and NO; expression of eNOS protein on rat aorta; expression of MCP-1, ICAM-1, CXCR-2 and eNOS mRNA on rat aorta. RESULTS Arecoline increased plasma level of NO and the expression of eNOS protein and mRNA, decreased plasma level of IL-8 and the expression of ICAM-1, MCP-1 and CXCR-2 mRNA on rat aorta. CONCLUSION The anti-atherogenic effects of arecoline seems to be closely involved in increasing plasma level of NO and eNOS protein and mRNA expression, decrease in plasma IL-8 level and down-regulation of the expression of ICAM-1, MCP-1 and CXCR-2 genes.-

AIMTo investigate the anti-atherosclerosis mechanisms of the novel compound PPVP. METHODSThirty-six male rats were a ssigned to control, model and PPVP 5 mg?kg -1 groups randomly. The rats in model and PPVP 5 mg?kg -1 groups were fed with hypercholesterol diet for inducing atherolcerosis model. The following variables were measured: HE stainin g of rat aorta; serum level of TC, LDL-CHO, HDL-CHO, IL-8, ET-1, PGI 2, TXA 2 and NO. RESULTSPPVP increased serum level of NO, decreased plasma level of TXA 2 and inhibited the over expression of IL-8. CONC LUSIONThe anti-atherogenic effect of PPVP seems to be closely involved in increasing serum NO level, decreasing plasma level of TXA 2, and inhibiting over expression of IL-8. The result also suggests that the anti-atherogenic ef fect of PPVP in high cholesterol-fed rat may not due to the regulation of plasm a lipid profile, plasma level of ET-1 and PGI 2.

Objective To explore the effects of dipeptidyl peptidase ( DPP-4 ) inhibitor on proteins expression of Bcl-2 and Bax of islet β-cells through increasing the expression of islet γ amino acid butyric acid ( GABA) . Methods A total of 50 rats of clean grade were studied. Among them, ten rats were randomly selected as normal controls, the remaining forty rats were fed with high-fat diet and then intraperitoneal injection with streptozotocin, the diabetic rats models were then established. Rats were randomly divided into three groups:i. e. diabetic control group, DPP-4 inhibitor group, and antagonist group ( DPP-4 inhibitor and GABA receptor antagonist). Six weeks later, blood glucose, serum insulin, glucagon, and the proteins expression of GABA, Bcl-2, and Bax of islet β-cells were measured. Results ( 1 ) Compared with diabetic control group, serum insulin was increased(P<0.05),bloodglucoseandserumglucagonweredecreasedinDPP-4inhibitorgroup(P<0.05). (2) Compared with DPP-4 inhibitor group, serum insulin was decreased(P<0. 05), blood glucose and serum glucagon were increased(P<0. 05) in antagonist group. (3) Compared with diabetic control group, the expression of GABA was increased(P<0. 05), the expression of Bcl-2 protein was increased (P<0. 05) in pancreatic β-cells in DPP-4 inhibitor group. ( 4 ) Compared with diabetic control group, the expression of GABA in pancreatic β-cells was increased in antagonist group(P<0. 05) . Compared with DPP-4 inhibitor group, the expression of Bax protein in pancreaticβ-cells was increased in antagonist group(P<0. 05) , while the expression of Bcl-2 protein was decreased (P<0. 05). Conclusions DPP-4 inhibitor could increase the secretion of insulin, decrease the secretion of glucagon, up-regulate expression of anti-apoptosis protein Bcl-2, and down-regulate expression of apoptosis protein Bax in pancreatic β-cells through increasing the expression of GABA, inhibiting pancreatic β-cells apoptosis and protecting the damagedβ-cells in type 2 diabetic rats.

OBJECTIVE:To observe the bleeding,therapeutic efficacy and ADR of patients with acute cerebral infarction (ACI) treated by alteplase intravenous thrombolysis. METHODS:140 ACI patients were randomly divided into group A and B with 70 cases in each group. Group A was give alteplase 0.6 mg/kg for intravenous thrombolytic therapy,and group B was given al-teplase 0.9 mg/kg for intravenous thrombolytic therapy. The bleeding after thrombolysis,bleeding time,therapeutic efficacy and ADR were compared between 2 groups. RESULTS:The incidence of Subcutaneous ecchymosis,gingival bleeding,bleeding of di-gestive tract and intracranial hemorrhage of group A were 4.29%,2.86%,2.86% and 2.86%;those of group B were 14.29%, 12.86%,11.43% and 11.43%;the bleeding time of those symptomsin 2 groups were(6.04±0.75)and(7.22±0.56)h、(24.63± 10.24)and(35.22±9.87)min、(3.04±0.11)and(4.08±0.25)h、(3.12±0.48)和(4.53±0.66)h respectirely,with statistical signifi-cance(P<0.05). There was no statistical significance in therapeutic efficacy and ADR between 2 groups after treatment(P>0.05). CONCLUSIONS:The bleeding should be monitored strictly when ACI patients receive alteplase intravenous thrombolysis,and low-dose alteplase thrombolysis can ultimately reduce the incidence of bleeding.

Two hundred and sixty-one subjects were recruited from in-patients and subjects for phaysical Check-up,and were divided into normal control group (NC),nonalcoholic fatty liver disease group (NAFLD),type 2 diabetes mellitus group (T2DM),and T2DM accompanied by NAFLD group (DMN).According to the result of ultrasonic examination,the patients with T2DM were further divided into non-NAFLD group,light fatty liver group (NAFLD-L group),moderate fatty liver group(NAFLD-M group),and severe fatty liver(NAFLD-S group).Fasting plasma glucose,blood lipid,liver function,kidney function,and serum retinol-binding protein 4 (RBP4) levels were determined.The risk of various indicators for NAFLD was determined by correlation analysis and logistic regression analysis.The results showed that fasting glucose levels in diabetics with or without NAFLD were significantly higher than those in NC and NAFLD groups(P＜0.01).Triglyceride (TG) level in DMN group was significantly higher than those in other three groups(all P＜0.01),while high density lipoprotein-cholesterol level was lower than those in other three groups(all P＜0.01).Systolic blood pressure and diastolic blood pressure in DMN group were higher than those in NC and T2DM groups (P＜0.05 or P＜0.01).Serum RBP4 level in patients with NAFLD was significantly higher compared with the subjects without NAFLD [45.00 (38.75,51.00) mg/L vs 51.00 (43.00,62.00) mg/L,P ＜0.01],and was rising with the progress of NAFLD [NAFLD-L group 44.00 (37.00,51.00) mg/L,NAFLD-M group 52.00(46.00,63.00) mg/L,and NAFLD-S group 78.5 (72.75,83.00) mg/L,all P＜0.01].Logistic regression analysis showed that the RBP4 level was an independent factor associated with NAFLD (P =0.029).In addition,serum RBP4 level was correlated with body mass index,waist-to-hip ratio,serum gamma-glutamyl transpeptidase,total cholesterol,TG,aspartate aminotransferase,alanine aminotransferase,prealbumin,creatinine,blood urea nitrogen,and uric acid.These resuhs suggest that serum RBP4 is an independent risk factor of NAFLD.