Objective To evaluate the influence of cytotoxin-associated gene A (CagA)to the differentiation of helper T lymphocytes in chronic gastritis. Methods Eighty patients with chronic gastritis were included in this study. The serum antibody against CagA was detected by the enzyme-linked immunosorbant assay (ELISA). Patients were divided into CagA-positive group and CagA-negative group according to the results of ELISA. Pathologic changes in gastric mucus were respectively analyzed. In addition, the expressions of nuclear transcription factors in gastric mucus including TBX 21, GATA-3, FoxP3 and Rorγt were detected by PCR and Western blot assay. Results There were 52 patients in CagA-positive group and 28 patients in CagA-negative group. The gastric inflammation was more serious in CagA-positive group than that in CagA-snegative group. There was no significant difference in Hp density between two groups. The expressions of GATA-3 and FoxP3 were much higher, while the transcription and protein expression levels of TBX21 and Rorγt were significantly lower in CagA-positive group than those in CagA-negative group. Conclusion Although the inflammation in gastric mucus was more serious in CagA-positive patients, Hp can not be effectively eliminated,which may relate to the differentiation of Th0 into Th2/Treg cells.

Objective: To investigate the safety and efficacy of the Weitan Waifu patch on the postsurgical gastroparesis syndrome (PGS) of gastrointestinal cancer. Methods: The multi-center, double-blind, randomized controlled trial was conducted with superiority design. Patients with PGS of gastrointestinal cancer diagnosed in 4 AAA hospitals and the abdominal symptom manifested as cold syndrome by Chinese local syndrome differentiation were recruited. These patients were randomly divided into two groups according to 1∶1 proportion. Placebo or Weitan Waifu patch was applied in control group or intervention group, respectively, based on the basic treatments, including nutrition support, gastrointestinal decompression, promoting gastric dynamics medicine.Two acupuncture points (Zhongwan and Shenque) were stuck with placebo in control group or patch in treatment group. The intervention course was 14 days or reached the effective standard. Results: From July 15, 2013 to Jun 3, 2015, 128 participants were recruited and 120 eligible cases were included in the full analysis set (FAS), and 60 cases in each group. 88 cases were included in the per-protocol set (PPS), including 45 cases in the treatment group and 43 cases in the control group. In the FAS, the clinical effective rate in the treatment group was 68.3%, significantly superior than 41.7% of the control group (P=0.003). The medium time of effective therapy in the treatment group was 8 days, significantly shorter than 10 days in the control group (P=0.017). In the FAS, 3 adverse events occurred in the treatment group, including mild to moderate decrustation, pruritus and nausea. The incidence rate of adverse events was 5.0% (3/60) and these symptoms were spontaneously remitted after drug withdrawal. No severe adverse events were observed in the control group. There was no significant difference between these two groups (P=0.244). Conclusion: Weitan Waifu patch is a safely and effectively therapeutic method for patients with PGS (cold syndrome) of gastroenterological cancer. Trial registration International Standard Randomized Controlled Trial Number Register, ISRCTN18291857