Type 1 diabetes is pathologically characterized by autoimmune insulitis-related islet β-cell destruction.Although intensive insulin therapy for patients with type 1 diabetes can correct hyperglycemia,this therapy does not effectively prevent diabetes-related cardiovascular complications.Hence,preservation of natural β-cell function is critical for the prevention of diabetes-related complications.Receut studies have shown that autologous hematopoietic stem cell transplantation ( A HSCT) is a new promising approach for the treatment of type 1 diabetes by reeonstitution of immunotolerance and preservation of islet β-cell function.Here we introduce the key results of a clinical trial ( NCT 01341899,ClinicalTrials.gov) performed in Chinese type 1 diabetes patients ( most of them with diabetic ketoacidosis at onset ) and discuss the potential mechanisms underlying the action of HSCT and its prospects in the clinical management of type 1 diabetes.

Objective To assess the effect of heat shock protein 70 of BCG (BCG HSP70) gene transfection on tumorigenicity and immunogenicity of murine lymphocytic leukemia cells (L1210). Methods BCG HSP70 gene was transfected onto the surface of murine lymphocytic leukemia cells (L1210) by lipofectamine 2000. And then the positive clone (L1210-HSP70) highly expressing HSP70 was selected as the tumor vaccine to study the tumorigenicity experiments in nude mice and syngeneic mice, the therapeutic experiments, and the immunoprotective effects. Results The expression of BCG HSP70 on the L1210 cells surface was detected, and the L1210-HSP70 cells had the same tumorigenicity as the parental L1210 cells did. Tumorigenicity experiments in syngeneic mice:In L1210-HSP70 group, tumor growth was slow or without the formation of tumor. As compared with L1210 group and L1210-neo group the mice survival time was signiifcantly prolonged, showing a marked stimulating effect on L1210 specific Th1 cells,. Tumor-bearing mice showed complete coagulation necrosis and abundant CD8+T lymphocyte inifltration (P<0.05). The tumor vaccine of L1210-HSP70 cells had the antitumor therapeutic efifcacy and immune protection effect, demonstrating that the tumor growth was signiifcantly inhibited, tumor diameter was markedly reduced and the survival time of tumor-bearing DBA/2 mice was further prolonged. Conclusions BCG HSP70 gene transfection could effectively improve the immunogenicity of tumor cells, activate speciifc T cells and enhance the anti-tumor immunity in vivo. Meanwhile, the host anti-tumor immunity could be enhanced.

Objective To explore the effects of high glucose on glucose transport activity, and phosphorylationandexpressionofinsulinsignalingproteins in primary cultured rat adipocytes. Methods Isolated rat adipocytes were cultured at different glucose concentrations (5, 10, 15, 25 mmol/L) for 24 h. Then the glucose uptake, the phosphorylations of insulin receptor (IR), insulin receptor substrate (IRS) 1 and 2 and protein kinase B (PKB) as well as the protein expressions of IRS1, IRS2, p85 subunit of phosphatitylinositol 3 kinase (p85) and PKB were measured. Results These adipocytes treated with different high glucose showed the impairment of the basal and insulin induced increase in glucose uptake and significant decrease of IR, IRS1 and PKB phosphorylations as well as IRS1 protein expression, but up regulation of IRS2 protein expression. p85 and PKB contents and IRS2 phosphorylation were unaffected. Conclusion The exposure to high glucose inhibits glucose uptake and induces insulin resistance in adipocyte. The mechanism may be involved in affecting the multiple step phosphorylations and the expressions of insulin signaling proteins.

Objective To explore the value of heart-type fatty acid-binding protein (H-FABP) in the early diagnosis of acute myocardial infarction (AMI). Methods Sixty confirmed AMI patients were observed, the data of H-FABP, cardiac troponin T (cTnT), creatine kinase MB (CK-MB) were detected in < 6 h and 6-12 h after the symptoms appeared, and the sensitivity of the three markers was calculated. The specificity was compared with 15 uncertain AMI patients and 45 healthy subjects. Results The early diagnosis sensitivity of H-FABP in < 6 h was 94% in AMI, which was higher than that of cTnT (50%) and CK-MB (56%) (P < 0.05 ). The diagnosis sensitivity of H-FABP, CTnT, CK-MB in 6-12 h was 100%, 92%, 92% respectively (P> 0.05 ). There was no significant difference in the specificity among the three markers (P > 0.05). Conclusions H-FABP has more sensitivity and specificity in the early diagnosis of AMI. It is applicable in the screening of patients who suffered chest pain and the diagnosis of early AMI.

A total of 1 007 inpatients with type 2 diabetes mellitus (T2DM) were divided into 2 groups,according to whether there was accompanied with nonalcoholic fatty liver(NAFLD) ; and the data of the two groups were analysed.Serum uric acid levels were positively correlated with body mass index and blood urea nitrogen and creatinine,while negatively correlated with HbA1c.T2DM patients complicated with NAFLD were younger,had shorter duration of T2DM,and showed impaired uric acid clearance with raised serum uric acid.The prevalence of NAFLD was higher with increasing serum uric acid levels.

Objective To explore the effects of microwave radiation from interphone on the electrocardiogram of occupational population. Methods 165 male security personnels (working age: 0.5-3.32 a) often exposed to microwave radiation from interphone and 80 male staffs (working age: 0.5-3.58 a) without exposure to microwave radiation in a same security guard company were selected for examination of electrocardiogram in June-July,2004. Results The prevalences of sinus arrhythmia,sinus bradycardia,and the total abnormal rate of electrocardiogram in exposure group were significantly higher than those in control group(P

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Objective To investigate the relationship between the amplification of human telomerase reverse tran-scriptase (hTERT) gene and high-risk human papillomavirus (HR-HPV) infections in cervical intraepithelial neoplasia (CIN) and cervical carcinoma. Methods The cervical epithelial cells were collected from 34 samples of normal cervical epithelium, 31 samples of CIN (gradeⅠ), 33 samples of CIN (gradeⅡ), 34 samples of CIN (gradeⅢ) and 20 samples of cer-vical carcinoma. HPV DNA was detected by polymerase chain reaction-reverse dot blot hybridization (PCR-RDB) and the amplification of hTERT gene was detected by fluorescence in situ hybridization (FISH). Results Twenty subtypes of HR-HPV were detected including HPV16, 18, 26, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66, 67, 68, 69, 73 and 82. The inci-dence of HR-HPV infection was higher in CINⅡgroup (72.73%), CINⅢgroup (85.29%) and cervical carcinoma group (90.00%) than that of normal cervical epithelium group (20.59%). There was no significant difference in the positive rate of HR-HPV DNA between CINⅠ group (54.84%) and normal cervical epithelium group (P < 0.005). The positive rate of hTERT gene amplification was higher in cervical carcinoma group (80.00%) than that of normal cervical epithelium group (0). There were no significant differences in the positive rates of hTERT gene amplification between CINⅠgroup ( 3.22%), CIN Ⅱ group (18.18%), cervical carcinoma group and CIN Ⅲ group (41.18%). There was positive correlation between hTERT gene amplification and HR-HPV infection (r=0.238, P<0.05). Conclusion The incidence of HR-HPV infection was positively correlated with hTERT gene amplification in cervical lesions. HR-HPV infection may be an early event of ab-normal amplification of hTERT gene. The detection of HPV-DNA and hTERT gene can be used in the clinical diagnosis of early cervical lesions.

The paper,based on a review of the reform of state-owned enterprises,and of the duty positioning and supervision of state-owned assets management committee, described experiences of Shanghai Hospital Development Center (SHDC ) in learning from such reforms. Centering onappropriate separation of ownership and power of management and defining public hospitals as key player of state-owned assets,SDHD explored to build a state-owned assets investor system conforming to the institutional positioning,assets category and operating targets of such hospitals.This way a state-owned assets management mode is gradually set up,featuring to make regulations beforehand,to supervise in the course and to supervise afterwards.

Objective:To establish the quality standards for Zhichuan adhesive plasters;Methods:Herba ephedrae、Bergenin arolisiae、Flos caryophylli、Semen sinapis in Zhichuan adhesive plasters were identified by TLC. Ephedrine hydrachloride in Herba ephedrea was determined by RP HPLC.Results:These methods were simple and accurate.Conclusion: The methods can be used for the quality control of Zhichuan adhesive plasters.