Bariatric and metabolic surgery is an effective treatment for obesity and metabolic syndrome with definite results. In recent years, bariatric and metabolic surgery has developed rapidly, and the surgical indications and procedures have gradually matured. At the same time, the complications have also been widely discussed, including those specific to bariatric metabolic surgery and the risks common to gastrointestinal surgery, of which gastrointestinal leak is one of the most important and serious complications, which can be life-threatening in severe cases. This paper will review the mechanisms, clinical manifestations, diagnostic strategies, prevention, and treatment advances related to gastrointestinal leak after bariatric metabolic surgery based on the two major procedures that cause gastrointestinal leak, namely, staple line leak after laparoscopic sleeve gastrectomy and gastrojejunostomy leak after laparoscopic Roux-en-Y gastric bypass.

Objective; To explore mechanism of Zhongjiling tablet treats experimental autoimmune myasthenia gravis on rats. Methods:Normal mice, immunosuppressive mice and EAMG rats were used to investigate the mechanism. Results:Zhongjiling tablet enhanced T and B cells proliferation of normal mice and immunosuppressive mice induced by ConA or LPS, and increased the production of IL-2. T cell proliferation of EAMG rats was improvement stimulated by AChR and decline by ConA. Zhongjiling tablet inhibited the improvement by AChR and enhanced the decline by ConA, and reduced the expression of IFN-? and IL-4 mRNA. Zhongjiling tablet also induced the apoptosis of CD4 + T lymphocyte stimulated by AChR. Conclusion: Zhongjiling tablet increased immunity of normal mice, immunosuppressive mice and EAMG rats. But it suppressed specific T lymphocyte proliferation induced by AChR and reduced the expression of IFN-? and IL-4 mRNA. It was probably one of mechanisms Zhongjiling tablet induced the apoptosis AChR specific CD4+T lymphocyte.

Objective: To investigate the efficacy of acupuncture in cooperation with moxibustion for treating anxiety. Methods: A treatment group of 42 anxiety patients was treated by acupuncture in cooperation with moxibustion and a control group of 45 anxiety patients, with Western medicine. Results: The total efficacy rate was 92.9% in the treatment group and 71.1% in the control group. There was a significant difference between the two groups (P＜0.01). Conclusion: The effect was significantly better in the treatment group than in the control group. Acupuncture and moxibustion has no side effects and dependence.

Objective To investigate the efficacies of laparoscopic Roux-en-Y gastric bypass (LRYGB) surgery in the treatment of patients with different body mass indexes (BMI) and type 2 diabetes mellitus.Methods The clinical data of 40 patients with type 2 diabetes mellitus who underwent LRYGB surgery at the Shengjing Hospital of China Medical University from January 2013 to December 2013 were retrospectively analyzed.According to different BMI,8 patients with BMI ＜ 27.5 kg/m2 were allocated into group 1,14 patients with BMI≥27.5 kg/m2 and ＜32.5 kg/m2 in group 2 and 18 patients with BMI≥32.5 kg/m2 in group 3.Forty patients were followed up via telephone interview and food habits questionnaire by weight loss file managers of Shengjing Hospital and the fourth Affiliated Hospital of China Medical University.All the patients received the reexamination of blood test and data collection at postoperative year 1.The preoperative and postoperative 1-year fasting plasma glucose,glycosylated hemoglobin (HbA1 c),BMI and C-peptide were collected and detected.The fasting plasma glucose ＜ 7.00 mmol/L and HbA1 c ＜ 7.00％ were used as a standard of complete remission.Count data and comparison of rates were analyzed using the chi-square test.Measurement data with normal distribution were presented as x ± s and analyzed by the t test.Skew distribution data were described as M (range) and analyzed by the Wilcoxon rank sum test.Repeated measurement data were analyzed by the repeated measures ANOVA.Results Forty patients received successful LRYGB surgery without perioperative complications,and were followed up for 1 year at the Shengjing Hospital (23 patients),the fourth Affiliated Hospital (8 patients) and other hospitals (9 patients).Of the 40 patients,85.0％ (34/40) of patients had no postoperative long-term obvious malnutrition,anastomotic stenosis,ion disorders and digestive tract dynamic obstacles,15.0％ (6/40) of patients were not adapted to the change of life habits such as frequent nausea and vomiting.Five patients with different degrees of frequent vomiting,abdominal pain and night heartburn within postoperative 1 month had the remission of synptoms after symptomatic treatment.One patient in group 2 had a symptom of hypertonic coma due to intake of oral high-sugar drinks at postoperative 1 week and then was cured by hospitalization.The fasting plasma glucose,HbA1c and BMI in group 1 from preoperation to postoperation were decreased from 11.07 mmol/L (range,6.00-17.00 mmol/L) to 7.18 mmol/L (range,6.00-15.00 mmol/L),from 8.85％ (range,6.00％-11.00％) to 6.35％ (range,6.00％-9.00％) and from 26.0 kg/m2 (range,22.0-27.0 kg/m2) to 22.2 kg/m2 (range,20.0-25.0 kg/m2),with significant differences (F =2.413,3.256,6.750,P ＜ 0.05).C-peptide from preoperation to postoperation was decreased from 1.20 nmol/L (range,1.00-3.00 nmol/L) to 1.07 nmol/L (range,1.00-2.00 nmol/L),with no significant difference (F =1.678,P ＞ 0.05).The remission rate of diabetes in group 1 was 3/8.The fasting plasma glucose and HbA1c in group 2 from preoperation to postoperation were decreased respectively from 10.73 mmol/L (range,7.00-19.00 mmol/L) to 5.89 mmol/L (range,5.00-9.00 mmol/L) and from 8.00％ (range,6.00％-15.00％) to 5.85％ (range,5.00％-8.00％).The BMI from preoperation to postoperation was decreased from 31.0 kg/m2 (range,29.0-32.0 kg/m2) to 25.5 kg/m2 (range,21.0-29.0 kg/m2),with significant differences in the above 3 indexes (F =5.449,4.008,-3.296,P ＜ 0.05).C-peptide from preoperation to postoperation was decreased from 1.53 nmol/L (range,1.00-5.00 nmol/L) to 1.52 nmol/L (range,1.00-6.00 nmol/L),with no significant difference (F =-0.251,P ＞ 0.05).The remission rate of diabetes in group 2 was 10/14.The fasting plasma glucose,HbA1c and BMI in group 3 from preoperation to postoperation were decreased from 9.44 mmol/L (range,5.00-16.00 mmol/L) to 6.65 mmol/L (range,4.00-15.00 mmol/L),from 7.90％ (range,6.00％-11.00％) to 6.45％ (range,5.00％-9.00％) and from 36.9 kg/m2 (range,33.0-47.0 kg/m2) to 27.7 kg/m2 (range,23.0-34.0 kg/m2),with significant differences (F =-3.027,-3.410,-3.724,P ＜ 0.05).C-peptide from preoperation to postoperation was decreased from 2.91 nmol/L (range,0.00-9.00 nmol/L) to 2.13 nmol/L (range,0.00-6.00 nmol/L),with no significant difference (F =-3.724,P ＞ 0.05).The remission rate of diabetes in group 3 was 14/18.There was no significant difference in the remission rate of diabetes of 3 groups (x2 =4.460,P ＞ 0.05).There were significant differences in the changing trends of fasting plasma glucose and BMI among the 3 groups (F =3.200,22.500,P ＜ 0.05).There were no significant differences in the changing trends of HbA1c and C-peptide among the 3 groups (F =0.720,1.640,P ＞ 0.05).Conclusion LRYGB surgery is feasible for the treatment of type 2 diabetes mellitus with effectively decreasing fasting glucose,and should be performed on patients with BMI ≥ 27.5 kg/m2 instead of patients with BMI ＜ 27.5 kg/m2 according to a correlation of blood glucose control and preoperative BMI.

Noninvasive early diagnosis of colorectal cancer is conducive for patients to reduce the mortality rate and their suffering from diagnosis procedures.One of the most significant methods to proceed noninvasive early diagnosis of colorectal cancer is analysis of stool DNA.Extracting high quality and great quantity of human genomic DNA from stools guarantees diagnosis accuracy.However,the complexity of stool component hinders DNA extraction.Hence,it is crucial to develop highly efficient extraction methods of human genomic DNA from stools for the DNA analysis-based early diagnosis of colorectal cancer.Currently,two kinds of extraction strategies are employed:one is to directly extract total DNA from stools,the other is to enrich exfoliated colonocytes in stools before DNA extraction.This article reviews the advances on these two kinds of extraction techniques and summarizes their applications.

Objective:To analyze immune mechanisms of total glycoside from Cornus officinalis (TGCO) against rheumatoid arthritis.Methods:Rat immunized by CⅡ in CFA were treated with TGCO ,at different times after immunization,CⅡ-specific antibodies in serum,lymphnode cells(LNC) IFN-? production was studied and cell proliferation response were also detected.Results:Treatment inhibit disease severity to a greater extent. TGCO effectively decreased anti-CⅡantibody titer in serum, considerably reduced IFN-? secretion before the onset arthritis and the acute stage of arthritis and suppressed T cell differentiation or proliferation.Conclusion:The both lead to supprese arthritis.

Objective To study the current research status of minichromosome maintenance protein 2 (MCM2), the cell cycle proliferation marker, in the diagnosis of colorectal carcinoma. Methods Literatures about the application of MCM2 in the study of colorectal carcinoma were collected and reviewed.Results MCM2, as a marker of cell dysplasia and malignancy, was usually used in the study of carcinoma. The study on expression of MCM2 in the cell of colorectum in different proliferational stage might help to screen colorectal carcinoma as early as possible. Conclusion As a relatively specific and sensitive marker of cell proliferation, MCM2 might become a promising mark for diagnosing colorectal carcinoma in the early stage.

Objective　To investigate the effect of congenital human cytomegalovirus（HCMV） infection on the growth of embryo and cerebral cortex. Methods　HCMV (6.0 log TCID50 in 1.0 ml/mice) was separately injected into the intraperitoneum of 10-week-old female mice on pre-mating, 3, 7, 15 gestation days. Cerebral cortices of fetuses were collected by laparotomy on 19th gestation-day just before delivery. The specimens were fixed with 4% buffered solution of paraformal dehyde. And then sectioned and stained with HE. Meanwhile, part of the specimens was used for viral isolation and HCMV DNA test by PCR. Results　In the cerebral cortex of fetal mice, it was found that the capillary was dilated and congested, and the parenchyma was infiltrated with neutrophils, monocyte for experimental group and not for control group. The degeneration, necrosis and apoptosis of neurons co-existed. The rates of virus isolation for the fetal cerebral cortex among pre-mating, 3-, 7-, 15-gestation-day groups were 60%、62%、67%、25%,respectively （χ2=13.475，P＜0.05) and the rate for 15 gestation-day group was significantly lower than others. Average weight of experimental mice for 15-gestation-day was significantly lower than control group and those for other gestation groups were not significantly different on group t-test. Conclusion　HCMV can replicate in the cerebral cortex of ICR mice, infect fetal and initiate congenital infection of cerebral cortex of fetus. In addition, embryo of different gestation stages can be infected by HCMV on experiment. HCMV delays embryo growth and causes the cerebral cortex damage.

Objective　To study the effect of gadolinium chl oride hexahydrate (GDCL3) on the structure and lipid peroxide (LPO) of rat hep atocellular mitochondria during liver cold ischemia storage. 　Methods　Forty Wistar rats were randomized into 8 gr oups ( 5 in each group). Group 1～4 served as control. The other 4 groups were p retreated with GDCL3 (7mg/kg). The ultrastructures of hepatocellular mitocho ndria were observed by electron microscope and LPO of hepatocellular mitochondri a were investigated. 　Results　LPO o f hepatocellular mitochondria in group 1h, 2h, 3h pretreated with GDCL3 for 1、 2、 3 h were 1.0±0.3、1.7±0.2、2.0±1.0, LPO was suppressed sign ificantly compared with control group (2.2±1.0、2.8±1.0、3.5±1.0、 P<0.05). With time prclonging of liver storage, the damage of hepatocellular mitochondria ultrastructure became more severe and LPO of hepatocellular mitoch ondria increased significantly. Pretreated with GDCL3, the damage of hepatocel lular mitochondria ultrastructures were lessened and the elevation of LPO was s uppressed significantly (1 hour、 2 hours、3 hours，P<0.05). 　Conclusion　Mitochondria damage is one of the sensitive characters of liver cold ischemia injury, GDCL3 inhibits rat hepatoc ellular injury during liver cold ischemia storage.

Objective To summarize the experience on treatment of esophageal leiomyoma and mesenchymoma with video-assisted thoracoscope under the assistance of a fiber gastroscope.Methods The clinical data of 14 cases of esophageal leiomyoma and 2 cases of esophageal mesenchymoma treated with video-assisted thoracoscope under the assistance of fiber gastroscope from October 2004 to December 2009 was retrospectively analyzed.Selected different surgical path and operation hole position according to the lesion site.Fiber gastroscope was conductive to accurately find lesion positions,and detected esophageal mucosa was breaked or not.Extra-mucosal excision was conducted in 16 cases.Results Ihere was no death and severe complications during perioperative period.Patients were diagnosed by pathological examination.Thirteen cases were followed up for 6-48(18.5 ±9.5)months,all patients ate unobstructed,and without relapse.Conclusion Treatment of esophageal leiomyoma and mesenchymoma with video-assisted thoracoscope under the assistance of fiber gastroscope has the advantages of intraoperative accurate positioning,minimally invasive,thoroughly,fewer complications,and it is the first choice of esophageal benign tumor treatment.