Objective To investigate the expression of vascular endothelial growth factor C(VEGF-C ) in tissue, serum and lymph fluid in esophageal cancer patients, and the relationship between its expression and tumor lymphatic metastasis. Methods Expressions of VEGF-C in 76 cases of ESC was detected by immunohisto-chemical SP method and VEGF-C levels in lymph fluid and serum were assessed by enzyme-linked immunosorbent assay. Results Positive immunostaining of VEGF-C in esophageal cancer tissue was 63.1%,The expression of VEGF-C in tissue was significantly associated with lymph node metastasis and TNM stage ( P<0.01, P<0.05 respectively), but not to patient age, tumor length or differentiation; VEGF-C in lymph fluid is significantly higher than in serum( P<0.05) ; The expression of VEGF-C in lymph fluid end serum were significantly associated with lymph node metastasis( P<0.05). Conclusion There are cliuical significance between VEGF-C expression and lymph node metastasis、TNM stage in tissue of esophageal cancer. The level of VFGF-C in lymph fluid is higher than that in serum, both associate with lymph-node metastasis closely.

Objective To investigate the expression of vascular endothelial growth factorC(VEGF-C),its receptor3(VEGFR-3) and podoplanin in tissue of esophageal cancer,and the relationship between their expression and tumor lymphatic metastasis.Methods Expression of VEGF-C,VEGFR-3 and podoplanin in 76 cases of ESC was detected by immunohistochemical SP method and lymphatic vessel density(LVD) was calculated.Results Positive immunostaining of VEGF-C in esophageal cancer tissue was 63.1%;the expression of VEGF-C was significantly associated with the depth of lymph node metastasis and tumor invasion(P

At present, obesity and overweight patients are increasing year by year in the world. Bariatric surgery is the most effective method for treating obesity at present. Due to its high risk, large trauma, irreversible operation, high cost and patient preference, the overall acceptance degree is not high at present. With the development of endoscopic technology and materials and equipment, various surgical methods emerge one after another. They are less invasive, reversible and similar to traditional bariatric surgery in weight loss effect. They are more and more widely used in obesity and metabolism. Depending on the site of the endoscopic intervention: The authors review the advances in endoscopic bariatric surgery for obesity, including the different principles of surgery and the effects of bariatric surgery on different sites.

At present, the aging trend of China′s population is intensifying and the number of overweight and obese elderly people is on the rise. The elderly obese is facing the treatment of related metabolic diseases, including cardiovascular disease, hypertension, type 2 diabetes, etc. In addition to life intervention and drug control, bariatric surgery is also one of the effective methods. Bariatric surgery can permanently reduce body mass, improve or alleviate the condition of patients, and prolong life. The authors analyze the indications and contraindications, perioperative manage-ment, surgical methods, surgical safety and effectiveness, and current problems of bariatric surgery for elderly obese patients.