Objective To investigate the relationship among serum leptin level in patients with type 2 diabetes and sex , serum glucose, serum insulin, body mass index (BMI), waist-hip ratio (WHR) and total cholesterol and triglyceride.Methods 56 cases of type 2 diabetes and 22 normal controls were attended in this study. BMI,WHR, fasting serum leptin, fasting and 2h postprandial serum glucose and insulin, total cholesterol and triglyceride were determined.Results The average serum leptin level in women was significantly higher than that in men (P

Objective To explore the expression and significance of Dickkopf-1 (Dkk-1) and cell lymphoma/leukemia-2 (Bcl-2) protein in sinonasal squamoucell carcinoma(SNSCC) .MethodThe immunohistochemical SP method and Western blomethod were adopted to determine the expression of Dkk-1 and Bcl-2 in 30 specimenof SNSC(SNSCgroup) ,38 specimenof sinonasal inverted papillomas(SNIP group) and 20 specimenof middle turbinate mucosa(control group) .ResultThe expression of DKK-1 protein in the SNSCgroup wasignificantly down-regulated compared with the SNIP group and the control group ,while the expression of Bcl-2 protein in the SNSCgroup wasignificantly up-regulated compared with the SNIP group and the control group;in the SNSCgroup ,the positive rateof DKK-1 protein and Bcl-2 protein in the high and middle differentiation group and the low differentiation group were 100 .00% ,68 .75% ,33 .33% and 50 .00% ,62 .50% ,100 .00% respectively ,the differencewere statistically significan(P＜0 .05) .Conclusion Dkk-1 protein may play an importanpromoting role in the developmenand pro-gression procesof SNSC,the expression of Dkk-1 protein hanegative correlation with the expression of Bcl-2 protein in SNSC,which may become new targespoof SNSCgene therapy .

Objective:To evaluate the feasibility of two materials used as scaffolds in periodontal tissue engineering. Methods: Dog periodontal ligament cells cultured in vitro were collected and seeded on three-dimensional framework of cancellous bone matrix (CBM) or nano-HAp/collagen (nHAC) . The cell growth in the scaffolds was observed by cell counting and scanning electronic microscope. Results: Porous structure of the two materials and adhesion and eugonic growth of cells in the scaffolds were observed by scanning electronic microscope.The cell number was doubled in both scaffolds in 72 h culture. Conclusion: It may be feasible to use CBM or nHAC as the scaffolds for periodontal tissue engineering.

The clinical data of 186 patients with acute gout attack during upper gastrointestinal bleeding were analyzed retrospectively.The ratio of male to female was 1.7∶1, smokers and alcohol drinkers accounted for 66.1% ( 123/186 ) and 62.4% ( 116/186 ) of patients were had underlying diseases.All patients had different degree of joint painful and fever , the blood uric acid levels were higher.Gastroscopic examinations were performed in 166 patients , of whom 88 cases received endoscopic intervention.The symptoms of gout were improved after treatment with dexamethasone and celecoxib ; and the medication did not induce or increase gastrointestinal bleeding.

Objective To evaluate advantages of the Herbert screw in treating displaced radial head fractures. Methods The Herbert screw was used to treat 25 segmental fractures of the radial head from since 1991 and the results were compared with those of other treatment methods mentioned in the literature. Results A follow up averaging 6 years and 8 months showed that postoperative function was all excellent or good and that most cases recovered to normal absolutely, without complications. Conclusions The Herbert screw provides such rigid internal fixation for displaced radial head fractures that, after operation, a plaster cast is rarely required and most patients are able to return to work within a few weeks. This method of treatment appears to offer significant advantages over conventional techniques.

Objective To explore the value of lymphatic mapping (LM) and sentinel lymph node(SLN) analysis in laparoscopic colectomy for colon carcinoma. Methods Thirty-two patients with clinically localized colonic neoplasms were subjected to submucosal injection of isosulfan blue dye (0.5-1.0 mL) via a colonoscope during operation. Blue-stained lymphatics were visualized through the laparoscope and followed to the SLN,which was tagged. The colectomy was completed in standard fashion. All lymph nodes were stained by hematoxylin and eosin,and multiple sections of each SLN were examined by immunohistochemical (IHC) staining using cytokeratin antibody. Results At least one SLN was identified laparoscopically in all patients. The SLN accurately predicted the tumor status of the nodal basin in 94% of cases. In 8 cases (25%),an unexpected lymphatic drainage pattern altered the extent of mesenteric resection. The SLN was negative by HE staining in 4 (13%) cases,which were demonstrated positive for micrometastases through immunohistochemical staining. Conclusions SLN mapping during laparoscopic colon resection can alter the margins of resection and in combination with immunohistochemical staining may improve staging,which may more accurately assign patients to prospective protocols.

AIM: To demonstrate the susceptibility of cell apoptosis varies during the progress of cell malig- nant transformation from human being in vitro. METHODS: A SV40T - transfected human bronchial epithelial im- mortalized cell line (called M) was selected in this work, which has acquired some characteristics of malignant trans- formation at the later passage. The alterations of apoptosis and bcl- 2, P53 genes between early and later passage of M cells were investigated by means of TDT labeling in situ, chromosome FISH, RNA and protein testing, etc. RE- SULTS: Incidence of apoptosis induced by cis - platin was significantly lower in later than in early passages of M. Levels of bcl - 2 mRNA and protein in later passages were higher than early passages of M, and overxpression of bcl -2 was accumulated following the development of cellular malignancy. P53 protein level was as high in early as in later passages. CONCLUSION: Overexpression of bcl - 2 decreases the cellular sensitivity to apoptotic inductors plays an important role during progress of carcinogenesis in human bronchial epithelial cancers. The inactivation of P53 protein in the SV40 - T transfected M cell line may be one of reasons of bcl - 2 overexpression, but not associated with the accumulation of bcl - 2 expressed level during cell transformation.

To introduce a kind of disposable double-channel cannula made by silica gel which is used for proctosigmoidoscopy, in coordination with rigid-tubing endoscope. There are kinds of characters for this cannula: small caliber, no toxic side effect, high degree of comfort, user-friendly, low system cost., etc.
Catheters ; Disposable Equipment ; Endoscopes ; Equipment Design

Objective To investigate the effects of desflurane on the delayed rectifier potassium current (Ik ) in acutely dissociated rat parietal cortical neurons. Methods Wistar rats between 10- and 14-day old of both sexes were used. The parietal cortical neurons were acutely dissociated enzymatically. The extracellular fluid saturated with 0.3,0.6 and 0.9 mmol/L desflurane was added to the culture dish, then the effects of different concentrations of desflurane on Ik were investigated by using the whole-cell patch-clamp technique in acutely dissociated rat parietal cortical neurons. Results IK was inhibited by desflurane in a concentration-dependent manner ( P ＜0.01). The V1/2 of the activation and inactivation curves and the slop factor had no change after giving 0.6 mmol/L desflurane (P ＞ 0.05). Conclusion Desflurane inhibits delayed rectifier potassium channels of parietal cortical neurons of rats in a concentration-dependent manner, and has no effect on the activation and inactivation of delayed rectifier potassium channels, indicating that the change in the excitability of the channel is not involved in the mechanism of inhibitory effect of desflurane, and the other reasons may be involved in the mechanism.

Objective To investigate and analyze the dwarf reasons for children in the area of Huai'an city,Jiangsu province.Methods A retrospective analysis of 92 cases of children with short stature in our hospital in recent 5 years had been made.Results The dwarf reasons for the 92 cases of undersized children were:lack of growth hormone (53.3％),physical sexual puberty delay (16.3％),hypothyroidism (9.8％),turner syndrome (7.6％),nanosoma essentialis (5.4％),familial short stature (4.3％),intrauterine growth retardation (2.2％)and glycogen storage disease type Ⅰ (1.1％).Conclusion The main dwarf reasons for children were growth hormone deficiency and physical sexual puberty delay,and medical treatment should be used as soon as possible.