Objective To explore the relation between serum TGF?1 and diabetic nephropathy(DN). Methods Forty-five cases of type 2 diabetes mellitus patients were divided into three groups according to urine albumium excretion rate (UAER): normoalbuminuria (NA)group; microalbuminuria (MA) group; macroalbuminuria group (overt DN). Serum TGF?1, fasting blood glucose (FBG), HbAlc.BUN. Cr. Ccr were detected in all cases. Microalbundnuria group and macroalbuminuria group were respectively divided into group.treated with captopril and regular treatment group. Results Serum TGF?1, had significantly differences in four groups(23. 95?8. 01ng/ml vs 35.02?6. 70ng/ml, 39.3i? 5. 35ng/ml vs 58. 58?9. 56ng/ml,P

Objective To investigate the effect of bcl-2 gene tr ansfection on the apoptosis and bioactivity of cultured islet cells. Met hods Adenovirus-mediated gene transfection was employed to transfect b cl-2 into the islet cells, the expression of bcl-2 was determined by RT-PCR a nd immunocytochemical staining, and the apoptosis of islet cells was detected by TUNEL, the viability was determined by trypan blue staining and islets function was evaluated by insulin detection. Results Bcl-2 protein exp ressed in 70% of transfected rat islet cells. The apoptosis rate of transfected cells reduced significantly compared with untransfected cells (6% vs. 22%). The viability of transfected cells was higher than that of untransfected cells (91% vs. 68%). Insulin secrete capacity of transfected islet cells in high glucose me dium was superior to untransfected cells. Conclusions Islet cel ls may be successfully transfected with adenovirus-mediated gene transfection t echniques. The apoptosis may be declined by bcl-2 gene transfection, so the isl et cells' function improved.

Objective To investigate the effect of transplantation of islet allograft with Bcl-2 gene transfection on diabetic rats. Methods Among 26 Wistar rats, 22 were built as model of diabetes, and were divided in to 3 groups. Islet cells expressing Bcl-2 by adenovirus-mediated Bcl-2 gene transfection were transplanted through the portal vein of streptozotocin-induced diabetic rats. The function and rejection of the transplanted islet allograft were evaluated by analysis of blood glucose level and histological examination after transplantation. Results 48h after transplantation, the level of blood glucose was significantly decreased in both transfected and untransfected islets transplantation groups. The euglycemia period of transfected islet cells transplantation group was longer than that of the untransfected islet cells transplantation group (16.4?4.3d vs 6.8?2.2d, P

Objective To construct recombinant human Bcl-2 adenoviral vector. Methods Sense human Bcl-2 cDNA fragment from plasimid pcDNA3 1/bcl-2 was cloned into adenovirus shuttle vector pAdCMV. pAdCMV/bcl-2 and plasmid pJM17 were cotransfected into 293 cells with lipofectamine 2000. Replication defective adenovirus was reproduced and purified. Adenoviral virus DNA was detected with polymerase chain reaction(PCR), and plaque assay was performed to determine the titer of virus. Results Recombinant adenovirus containing bcl-2 target gene was obtained. The titer of virus was 2 0?10 10 pfu/ml. Conclusion High titer of adenovirus containing target gene was successfully obtained by recombinant adenovirus vector.

Objective To explore the effect of hyperglycemia on the survival time, duration of disease remission and complications during induction chemotherapy for acute lymphocytic leukemia(ALL). Methods The treatment-related complications in 98 adult ALL patients with or without hyperglycemia were retrospectively analyzed. Survival time and complete remission duration(CRD) were evaluated using Kaplan-Meier method. Cox regression analysis was used to examine whether hyperglycemia was an independent predictor of disease recurrence and death. Results ALL patients with hyperglycemia were found to be older, and more likely to occur thrombocytopenia. ALL patients with hyperglycemia had a shorter CRD and survival time, and were more likely to develop infection and neuropathy. Conclusion Hyperglycemia during induction chemotherapy for ALL increased the frequency of infection and the risk of disease recurrence and death.

Objective To explore the correlation between glycosylated hemoglobin(HbA1c) level and hemoglobin(Hb),fasting blood glucose (FBG),two-hour postmeal blood glucose (PBG2h) levels in type 2 diabetic patients on plateau.To evaluate influencing factors of HbA1c and effects of Hb level on HbA1c and blood glucose levels.Methods A total of 101 type 2 diabetic patients with no change antidiabetic treatment above 3 months and living in Lijiang city(at altitude 2420 m) above 5 years were investigated.The mean value of FBG,PBG2h,HbA1c and Hb were determined.The correlation between HbA1c and Hb,FBG,PBG2h were studied by scatter diagram,Pearson correlation analysis and the regression analysis.HbA1c,FBG,PBG2h levels were compared between high hemoglobin group and normal hemoglobin group.Results The HbA1c level was positively correlated with the FBG (r =0.82,P ＜ 0.001) and the PBG2h (r =0.29,P =0.003) levels.The regression equation between HbA1c and FBG,PBG2h was Y =2.674 + 0.52X1 + 0.018X2.There was no correlation in HbA1c and Hb level(r =-0.06,P =0.551).There was no difference on HbA1c,FBG,PBG2h levels between high hemoglobin group and normal hemoglobin group (P ＞ 0.05).Conclusion The major influencing factors of HbAlc are FBG and PBG2h.The hemoglobin level has no obvious effects on HbA1c and blood glucose levels.

AIM: To explore the changes in serum TGF ? 1 in type 2 diabetes mellitus. METHODS: Forty-five cases type 2 diabetes mellitus patients were divided into three groups according to urine albumim excretion rate(UAER): normoalbuminuria(NA)group and microalbuminuria(MA) group and macroalbuminuria group (Overt DN). Serum TGF ? 1, fasting blood glucose(FBG), HbA 1c ,BUN,Cr,Ccr,lipidemia were detected in all cases. RESULTS: Serum TGF ? 1 in NA, MA and ODN groups [(35.02?6.70) ?g/L, (39.31?5.35) ?g/L, (58.58?9.56) ?g/L, respectively] was higher than that in control [(23.95?8.01) ?g/L, P

ObjectiveTo evaluate the effects on serum homocysteine(Hcy) level,vascular function and carotid intima-media thickness(IMT) in metformin-treated diabetic patients with or without supplementation with folate and Vitamin B12.MethodsA total of 100 newly diagnosed diabetic type 2patients were divided into two groups by random digits table with 50 cases each,90 patients completed study.Forty-seven participants (control group) received a 6-month course of metformin treatment,43 patients (treatment group) received mefformin,folate and Vitamin B12 treatment.The levels of serum Hcy,endothelin-1 (ET-1),carotid IMT,large or small arterial elasticity index (C1,C2),flow-mediated dilatation (FMD) of the brachial artery were evaluated before and after treatment.ResultsThe level of serum Hcy in control group significantly increased compared with before treatment[ (13.4 ± 2.7)μ mol/L vs.(11.1 ± 1.9)μ mol/L],hut the level of serum Hcy in treatment group significantly decreased compared with before treatment [ (9.2 ± 1.8 ) μ mol/L vs. ( 11.3 ± 2.0) μ mol/L ],there was significant difference(P ＜ 0.05 ).A beneficial effect was observed in the serum ET-1,FMD,carotid IMT and C2 in treatment group[ (20.0 ± 6.2)ng/L,( 15.8 ± 7.6)％,(0.8 ± 0.2) mm,(4.1 ± 2.1 ) ml/mm Hg ( 1 mm Hg =0.133 kPa) × 100 vs. (31.3 ±10.1 ) ng/L,(9.7 ± 4.5)％,( 1.1 ± 0.4) mm,(2.3 ± 1.0) ml/mm Hg × 100 ] (P ＜ 0.05).The levels of ET-1,FMD,carotid IMT and C2 after treatment in control group [ (24.8 ± 6.8) ng/L,( 12.9 ± 6.3 )％,(0.9 ± 0.3)mm,(3.0 ± 1.4) ml/mm Hg × 100] had significant difference compared with before treatment [ (30.6 ± 8.7)ng/L,(9.8 ± 4.6)％,( 1.0 ± 0.3) mm,(2.2 ± 0.9) ml/mm Hg × 100](P＜ 0.05).However,the results were improved significantly in treatment group than those in control group (P ＜0.05).In treatment group,significant correlation were detected between changes of Hcy and ET- 1 (r =0.43,P ＜ 0.05 ),carotid IMT(r =0.56,P ＜ 0.05),FMD (r =-0.54,P ＜ 0.05 ),C2 (r =-0.37,P ＜ 0.05 ).ConclusionsAdministration of folate and Vitamin B12 can reduce the levels of serum Hcy and ET-1 in metformin-treated type 2 diabetic patients,which exert beneficial effect on carotid IMT,FMD and C2.

Objective To investigate the toxic effect of immunosuppressive drugs on apoptosis of rat pancreatic islet cells in vitro and the protective action of Bcl-2.Methods Islet cells expressing Bcl-2 and the control islet cells were cultured at different concentrations of tacrolimus and the apoptosis rate of islet cells and insulin accumulation in the culture medium were detected after 48h.Results Low and high concentrations of tacrolimus induced the apoptosis of islet cells and decreased insulin secretion.The Bcl-2 inhibited the apoptosis of islet cells induced by tacrolimus and improved the insulin secretion.Conclusion Tacrolimus may directly damage to isolated rat islet cells and the expression of Bcl-2 can protect the cells from the damage of immunosuppressive drugs.

Objective To evaluate glycemic control,complication and influence factors of glycosylated hemoglobin(HbA1c) in type 2 diabetic(T2DM) patients with hypertension in retired and veteran of military communities in Kunming.Methods Cross-sectional study was conducted and 216 T2DM patients with hypertension were enrolled in current study.A self-made questionnaire was used to collected information including age,course of the disease,complication,hypoglycemic agents and status of glucose controlling.The levels of HbA1 c,fasting blood-glucose (FBG),2h postprandial blood glucose (2hPBG),total cholesterol (TC),triglyceride(TG),high density lipoprotein cholesterol(HDL-C),low density lipoprotein cholesterol (LDL-C),Blood urea nitrogen(BUN),creatinine(Cr) and uric acid(UA) were measured.Relative factors of HbA1c were analyzed.Patients were divided into the standard (HbA1c ＜ 7％) and substandard groups (HbA1c ≥ 7％) according to the level of HbA1c,and divided into the oral-medication,insulin-treatment and oral medication combined insulin groups according to therapeutic regimens.Results The goal attainment rate of HbA1c(HbA1c ＜7％) in retired and veteran of military communities in Kunming was 44.9％ (97/216).The levels of FBG,postprandial plasma glucose(PPBS) and TG in standard group were (6.1 ± 1.2) mmol/L,(9.4 ± 1.8) mmol/L and (1.9 ± 1.3) mmol/L,significant different from those in substandard groups [(7.8 ± 1.6) mmol/L,(11.5 ±2.2) mmol/L and (2.4 ± 1.3) mmol/L],and the differences were significant (t =11.6,9.1,2.2; P ＜ 0.05 or P ＜ 0.01).Meanwhile,the rate of cardiovascular disease,cerebrovascular disease,proteinuria,peripheral neuropathy and retinopathy were 69.8％,34.5 ％,20.5％,20.5％,29.6％,respectively,significantly different between the standard and substandard groups (P ＜ 0.05).HbA1 c level was linear correlated with FBG (r =0.76,P ＜ 0.01),PBG (r =0.61,P ＜ 0.01),TG (r =0.24,P ＜ 0.05) and the frequency of glucose monitoring (r =-0.55,P ＜ 0.01).As the increasing of the stage of diabetes,the selected therapeutic regimen were oral anti-diabetic agents,followed by insulin and insulin combined oral antidiabetic agents.The levels of PBG and serum creatinine in patients with insulin monotherapy were higher than those in other groups (P ＜0.05).Conclusion The level of glucose controlling of retired and veteran of military communities in Kunming is better.The prevalence of diabetic chronic complications is higher in patients with poor glucose controlling.HbA1c level is correlated with FBG,PBG,TG and the frequency of glucose monitoring.Oral antidiabetic agents is the primary therapeutic regimen.