GLP-1 has a variety of anti-diabetic effects. However, native GLP-1 is not suitable for treatment of diabetes due to its short half-life (t½, 2-5 min). Exendin-4 is a polypeptide isolated from lizard saliva, which can bind to GLP-1 receptor, produce physiological effects similar to GLP-1, t½ up to 2.5 h, therefore, we developed a long-lasting GLP-1 receptor agonists and GLP-1-exendin-4 fusion IgG4 Fc [GLP-1-exendin-4/ IgG4(Fc)]. We constructed the eukaryotic expression vector of human GLP-1-exendin-4/IgG4(Fc)-pOptiVEC- TOPO by gene recombination technique and expressed the fusion protein human GLP-1-IgG4 (Fc) in CHO/DG44 cells. The fusion protein stimulated the INS-1 cells secretion of insulin, GLP-1, exendin-4 and fusion protein in CD1 mice pharmacokinetic experiments, as well as GLP-1, exendin-4 and fusion protein did anti-diabetic effect on streptozotocin induced mice. Results demonstrated that the GLP-1-exendin-4/IgG4(Fc) positive CHO/DG44 clones were chosen and the media from these positive clones. Western blotting showed that one protein band was found to match well with the predicted relative molecular mass of human GLP-1-exendin-4/IgG4(Fc). Insulin RIA showed that GLP-1-exendin-4/IgG4(Fc) dose-dependently stimulated insulin secretion from INS-1 cells. Pharmacokinetic studies in CD1 mice showed that with intraperitoneal injection (ip), the fusion protein peaked at 30 min in circulation and maintained a plateau for 200 h. Natural biological half-life of exendin-4 was (1.39 ± 0.28) h, GLP-1 in vivo t½ 4 min, indicating that fusion protein has long-lasting effects on the modulation of glucose homeostasis. GLP-1-exendin-4/IgG4(Fc) was found to be effective in reducing the incidence of diabetes in multiple-low-dose streptozotocin-induced diabetes in mice, longer duration of the biological activity of the fusion protein. The biological activity was significantly higher than that of GLP-1 and exendin-4. GLP-1-exendin-4/IgG4(Fc) has good anti-diabetic activity. It can be used as a long-acting GLP-1 agonists.
Animals ; CHO Cells ; Cricetinae ; Cricetulus ; Diabetes Mellitus, Experimental ; drug therapy ; Glucagon-Like Peptide 1 ; pharmacology ; Glucagon-Like Peptide-1 Receptor ; agonists ; Half-Life ; Humans ; Hypoglycemic Agents ; pharmacology ; Immunoglobulin G ; pharmacology ; Insulin ; secretion ; Mice ; Peptides ; pharmacology ; Recombinant Fusion Proteins ; pharmacology ; Venoms ; pharmacology

Animals ; Disease Models, Animal ; Ischemic Preconditioning ; methods ; Lung ; blood supply ; Male ; Nitric Oxide Synthase ; metabolism ; Nitroarginine ; pharmacology ; Rabbits ; Reperfusion Injury ; metabolism

Palmer-foot hyperhidrosis is one kind of focal hyperhidrosis, with symptoms of sweating hands or feet. Some people even have sweat dripping off their hands or feet. This article studied the views of TCM on palmer-foot hyperhidrosis, expounded the pathological and physiological relationship between palmer-foot hyperhidrosis and spleen and stomach, and proposed that clinical treatment should be based on the syndrome differentiation and treatment of spleen and stomach, which can achieve certain efficacy.

Adult ; Echinococcosis ; Heart Diseases ; parasitology ; Humans ; Male

Objective To introduce a new surgical method of reconstructing A ch illes tendon by transfer of the soleus tendon flap. Methods The method was desig ned on the basis of the anatomical characteristics of the superficial muscles as sociated with Achilles tendon. It was applied to treat 12 patients with Achilles tendon defects. These patients were followed up for 0.5 to 6 years (average 39 months). Results The curative effect of the method were assessed according to Ar ner-Lindholms evaluation criteria. 9 cases were rated as excellent, 2 fine an d 1 poor, with the total excellent and fine rate being 92%. Conclusions ①Misdi agnosis and improper initial treatment are the major causes of Achilles tendon d efects. ②Systematic training after operation is very important for good curativ e effects. ③The method mentioned above brings about less trauma, less negative effects on blood supply to Achilles tendon, and good healing after operation.

Objective To explore the applicability of the abbreviated Chinese version of the social problem-solving inventory (C-SPSI) for nursing students in Shanghai. Methods The abbreviated C-SPSI was revised and 603 nursing students in Shanghai were surveyed by it, and the reliability and con-struct validity were evaluated by inter-item consistency analysis, test-retest reliability and principal factor analysis. Results The total CVI was 0.968. The construct validity was confirmed by factor analysis with 64.917% variance explained by four factors. The total Cronbach's α of C-SPSI was 0.897,and the total test-retest reliability coefficient was 0.781. Conclusions The abbreviated C-SPSI is an instrument with good reliability and validity and it can be used in assessing the nursing students' social problem-solving abilities and deficits.

Objective To evaluate the diagnostic value for ankylosing spondylitis (AS).Methods Ninety-two patients with confirmed diagnosis of AS were allcated to Group A and 70 non-AS cases served as the control(Group B).Human leucocyte antigen B 27(HLA-B 27)was determined by micro-lymphocytoxicity test.Results The sensitivity and specificity of HLA-B 27 in diagnosing AS were 87.0% and 91.4% respectively.In a randomized human group,the morbidity rate of AS was 2.57% for those with HLA-B 27 being positive.In clinic,when the assumed morbidity rate of AS was 50%,the morbidity rate arrived at 91.01% for the cases of HLA-B 27 being positive.Conclusion HLA-B 27 is an important accessory diagnostic index for AS,but it can not be ued as a confirmed diagnostic index for AS.

Objective To compare the analgesia and side-effects of different concentrations of sufentanil combined with 0.125% ropivacaine for postoperative epidural analgesia after general thoracic surgery.Methods Thirty-six ASA Ⅰ-Ⅲ patients (25 males, 11 females) ages 21-64 yrs weighing 42-79 kg undergoing elective general thoracic surgery under general anesthesia were randomly assigned to receive patient-controlled epidural analgesia (PCEA) with 0.125% ropivacaine combined with sufentanil 0.4 (group A, n = 12) , 0.5 (group B, n = 12) or 0.6 ?g?ml-1 (group C, n = 12) . Epidural catheter was placed at T7,8 or T8,9 interspace. The PCEA pump was set up with back ground infusion of 2 ml?h-1 , a3ml bolus dose and a 30-min lock-out period. VAS scores was used to assess analgesia at rest and during movement. The total bolus doses, PCEA button pressing times (effective/actual), vital signs including MAP, HR, respiratory rate, SpO2 and side effects (nausea, vomiting, pruritus and dyspnea) were recorded. Results During the 48 hours after operation the VAS scores in group C were significantly lower than those in group A and B ( P

Objective To investigate the current status and influencing factors of falls self-efficacy among the stroke elderly patients.Methods Totally 170 elderly stroke patients were investigated using the Modified Falls Efficacy Scale (MFES),and they were tested with Berg Balance Scale (BBS) and Time Up and Go Test (TUGT).Results The average score of falls self-efficacy was 108.There were 50.6％ elderly stroke patients assigned to the group with low falls self-efficacy.Multiple Logistic regression analysis indicated that impairments of balance and mobility,severe stroke-related disability were the independent influencing factors associated with FOF,which could explain 52.0％ of variations.Conclusions Low falls self-efficacy among the stroke elderly patients is a common complaint,nurses and physicians should focus on this problem,interventions combining exercise and education of accidental falls should be taken to improve falls self-efficacy of elderly stroke patients,and prevent falls finally.

Adenocarcinoma, Follicular ; diagnosis ; pathology ; Adenoma ; diagnosis ; pathology ; Carcinoma, Papillary ; diagnosis ; pathology ; Carcinoma, Papillary, Follicular ; diagnosis ; pathology ; Cell Nucleus ; pathology ; Diagnosis, Differential ; Humans ; Neoplasm Invasiveness ; Thyroid Gland ; pathology ; Thyroid Neoplasms ; diagnosis ; pathology ; Thyroid Nodule ; diagnosis ; Thyroiditis ; diagnosis