Randomized trial of umbilical incisional hernia in high-risk patients: extraction of gallbladder through subxiphoid port vs. umbilical port after laparoscopic cholecystectomy.

Introduction: Trocar site incisional hernia (TSIH) is one of the most common complications of laparoscopic surgery. Using the umbilical port as a common hole for removing the gallbladder in laparoscopic cholecystectomy is more likely to lead to TSIH than other ports. Thus, extracting the gallbladder through other ports may reduce the incidence of TSIH.

The role of TRPP2 in agonist-induced gallbladder smooth muscle contraction.

TRPP2 channel protein belongs to the superfamily of transient receptor potential (TRP) channels and is widely expressed in various tissues, including smooth muscle in digestive gut. Accumulating evidence has demonstrated that TRPP2 can mediate Ca(2+) release from Ca(2+) stores. However, the functional role of TRPP2 in gallbladder smooth muscle contraction still remains unclear.

MEK1 expression and its relationship with clinical pathological features in hepatocellular carcinoma.

Background: MEK1 is overexpressed in various human carcinomas, but the role of MEK1 is not well unknown in hepatocellular carcinoma (HCC). In the present study, we aimed to explore MEK1 expression of in HCC tissues, and to evaluate its relationship with clinical pathological features.

Methods: Expressions of MEK1 were detected by western blot assay, real-time quantitative PCR and immunohistochemical (IHC) staining in 30 HCC tissues and their adjacent normal tissues.

MicroRNA-29a inhibits cell migration and invasion via targeting Roundabout homolog 1 in gastric cancer cells.

Deregulation of Roundabout homolog 1 (Robo1) has been demonstrated to be associated with several types of human cancer, including gastric cancer. However, the detailed role of Robo1 and its regulatory mechanism in gastric cancer remain largely unclear. In the current study, it was demonstrated that the expression of microRNA (miR)‑29a was frequently reduced in gastric cancer tissues, compared with their matched normal adjacent tissues.

Do patients with pN0 gastric cancer benefit from prophylactic extended lymphadenectomy?

Purpose: To investigate the impact of prophylactic extended lymphadenectomy on survival for patients with node-negative (pN0) advanced gastric cancer according to the extent of lymph node dissection.

Methods: This study retrospectively investigated the clinicopathological characteristics and prognostic outcomes of 458 patients who had pN0 advanced gastric cancer between 1995 and 2001. Postoperative survival was compared in patients who underwent different extents of prophylactic lymphadenectomy.

Comparison of the multi-drug resistant human hepatocellular carcinoma cell line Bel-7402/ADM model established by three methods.

Background: To compare the biological characteristics of three types of human hepatocellular carcinoma multi-drug resistant cell sub-lines Bel-7402/ADM models established by three methods.

Methods: Established human hepatocellular carcinoma adriamycin (ADM) multi-drug resistant cell sub-lines models Bel-7402/ADMV, Bel-7402/ADML and Bel-7402/ADMS by three methods of in vitro concentration gradient increased induction, nude mice liver-implanted induction and subcutaneous-implanted induction respectively. Phase contrast microscopy was used to observe the cells and the MTT (methyl thiazolyl tetrazolium) method was used to detect drug resistance of the three different sub-lines of cells.

Early laparoscopic cholecystectomy for acute gallbladder disease in Chinese elderly.

Background/aims: Evidence now strongly supports that early laparoscopic cholecystectomy (ELC) is the treatment of choice for acute gallbladder disease. However, the optimal time for managing acute gallbladder disease in elderly people is still controversial. The purpose of this study was to evaluate the outcome of ELC in patients aged 65 years old and older.