In recent years,some studies have been shown that proton pump inhibitors(PPIs)not only play a role in digestive diseases,but it also has an important role in the treatment of breast cancer.PPIs,including omeprazole,pantoprazole,lansoprazole,esomeprazole,etc,improve the effect of breast cancer chemotherapy and induce breast cancer cell apoptosis by inhibiting intracellular proton excretion and increasing intracellular pH.This preview summarizes the study progress of PPIs in breast cancer and the potential application of PPIs in the treatment of breast cancer.

Objective To establish a kinetic spectrophotometric method for the determination of trace catechol in the waste water. Methods Trace catechol can sensitively inhibit the Arsenazo decolorization reaction with H2O2 catalyzed by Cu(Ⅱ)in dilute H2SO4 medium. Based on the changing of catalyzed reaction speed, a new inhibitory kinetic spectrophotometric method for the determination of trace catechol in the waste water was established. Results The optimum condition, kinetic parameters and reaction mechanism were investigated. It is shown that the linear range of determination was 0.2-1.8 mg/ L, the detection limit was 0.084 mg/L. The RSDs of ?A for 0.6 mg/L,1.12 mg/L and 1.6 mg/L catechol standard materials for 11 parallel determination were 2.4%, 1.2% and 1.6% respectively. The recovery rates were 98.0% and 96.0%. Conclusion This method can be used for determination of trace catechol in waste water with satisfactory results.

Purpose: The purpose of this study was to assess the method of compartment resection and evaluate its application to patients with extremity soft tissue sarcomas. Methods: From 1997 to 2002, 10 cases of thigh sarcoma underwent this operation (7 cases of posterior compartment and 3 anterior compartment) while 2 cases with upper limb disease received similar resection. Results: All the limbs of this group with such tumors were preserved. We followed up the 12 patients in the range of 10 to 60 months, 10(82%) were alive without tumor recurrence or metastases. One patient local with recurrent tumor is receiving radiotherapy now and another died from distance metastases. Conclusions: This improvement in the rate of limb -preserving resection in our series has been the result of compartment resection.

Objective Colonic short chain fatty acids(SCFA) may maintain colonocyte differentiation and oppose carcinogenesis, although its precise mechanisms remain unclear. The purpose of this study is to investigate SCFA regulation of intestinal epithelial phenotype by characterizing the effects of three kinds of SCFA on differentiation,proliferation,and migration of human colonic adenocarcinoma cell line Caco-2 and discuss its clinical value. Methods Differentiation was assessed by brush border enzyme expression, doubling time (proliferation) calculated directly from serial cell counts and logarithmic transformation method. Cell motility(migration) was quantitated by the expansion of a confluent Caco-2 monolayer(after release from a constraining fence) across bacteriologic plastic dishes precoated with saturating concentrations of type Ⅰ collagen. Results All three SCFA studied altered the Caco-2 phenotype. Treatment with 10 mmol/L SCFA significantly prolonged the cell doubling time, promoted brush border enzyme expression(cathepsin C), and inhibit the motility of the Caco-2 cells. Conclusion The SCFA butyrate, propionate, and acetate inhibit the proliferation and motility of a well-differentiated human colonic cancer cell line while promoting the expression of the differentiation marker cathepsin C. The SCFA produced by bacterial fermentation of dietary fiber may exert a protective effect against the development of colon cancer.

Purpose:To investigate the possible causes, diagnosis, and treatment of functional delayed gastric emptying (FDGE) after colonic operation.Methods:The clinical data of 6 patients with coon cancer from 1995 to 2000 were retrospectively analysed.Results:FDGE occurred in all of the 6 patients 4 to 6 days after surgery and the clinical symptoms disppeared gradually with medical therapy.Conclusions:The causes of FDGE are due to many factors such as mental stress, asleep, inutration, low albumine, ertent of lymphadectomy and the combined organ resection. An upper gastrointestional radiography is the main method of diagnosis of FDGE and gastrointestinal motility can return spontaneously after a long period of medical therapy with some prokinetic drugs. [

ObjectiveTo assess the diagnostic value of preoperative lymphoscintigraphy for lateral lymph node metastasis in low rectal cancer. MethodsFrom May 1999 to March 2001, pelvic and lower abdominal lymphoscintigraphy with 99mTc sulfur colloid was performed on 32 patients with proven colorectal cancer one day prior to operation. Among these patients were 27 rectal cancers, 3 sigmoid cancers and 2 colon cancers. Fifteen cases of rectal cancer with the tumor located at or below the peritoneal reflection received extended lymphadenectomy with lateral dissection (D3 lymphadenectomy). The result of lymphoscintigrams was correlated with histologic lateral node examination. Results The image ratio of pararectal nodes, obturator nodes, and internal iliac aorti lymph trains was 69%, 91%, and 100% respectively. In 15 patients receiving D3 lymphadenectomy, 10 had negative lymphoscintigrams whereas 5 had positive image, and the lateral pathology positive rate was 13%(2/15). Analysis of these results revealed the sensitivity (100%), specificity (77%) and accuracy (80%) of this diagnostic method. ConclusionPelvic and lower abdominal lymphoscintigraphy with 99mTc sulfur colloid could demonstrate the lateral lymph node drainage of low rectal cancer, and the correlation with postoperative histologic lateral node examination was high enough to enable surgeons to adopt an individualized surgical approach.