Objective To investigate the effects of health education model on the efficacy and toxicity of chemotherapy in patients with gastrointestinal cancer. Methods Random digit table was used to divide 108 patients with gastrointestinal cancer divided into control group and observation group , 54 cases in each group: the former was treated with routine nursing care and the latter with education model based on health awareness theory. The two groups compared in terms of efficacy and toxicity of chemotherapy. Results The effective rate in the observation group was significantly higher than that of the control group (P<0.05). The hematologic toxicity, gastrointestinal toxicity, skin toxicity, heart, lung and kidney toxicity in the observation group during chemotherapy were significantly lower than those of the control group (P<0.05). Conclusion The health education model on the efficacy and toxicity of chemotherapy in patients with gastrointestinal cancer can improve the effect and reduce the occurrence.

Objective To meagure the serum eareinoembryonic antigen(CEA)value and tissue CEA stainingin patients with gastric carcinoma and precancerous lesions,in order to apply the index for the diagnosis and monitoring on gastric carcinoma and precancerous lesions.Methods The gemm CEA level of patients with gastric carcinoma(111 cases),precancerous lesions(167 cases,including chronic atrophic gastritis 104 cases,gastric ulcer 31 cases,mucosa intestinal metaplasia 32 cases)was measured by radioimmunoassay,gastric tissue CEA was measured by immunohistochemical SP staining,and 31 cases with superticial gastritis were admired as controls.Results(1)In patients with gastric carcinoma,the positive rate of tissue CEA(89.2%,99/111)Was higher than that in patients with precancerous lesions[chronic atrophic gastritis 52.9%(55/104),mucosa intestinal metaplasia 53.1%(17/32),gastric ulcer 48.4%(15/31)]and superficial gastritis(19.4%,6/31)(P＜0.01).(2)The positive rate of tissue CEA increased significantly than that of the serum levels in patients with gastric carcinoma and precancerous lesions.(3)The serum CEA level in precancerous lesions showed no significant differences compared with that of superficial gastritis(P＞0.05).Conclusions The tissue CEA could be useful diagnostic and monitoring indicators in patients with gastric carcinoma and precancerous lesions.The serum CEA levels in patients with gastric carcinoma may have value in the diagnosis of gastric carcinoma,but have little value for the precancerous lesions.

Objective To provide the basis for early detection and treatment of precancerous lesions of gastric carcinoma, and reference for early discovery, diagnoses and treatment of gastric cancer, by examining the differences of expression of Helicobaeter pylori (Hp), both in the gastric mueosa and in blood serum, between precancerous lesions of gastric carcinoma patients and gastric cancer patients. Methods Used immunechromatographic method and protein chip system to determine the expression of Hp in blood serum and used immunohistochemistry to detect the expression of Hp in gastric mucosa. The patients had been diagnosed by pathological methods, 170 patients with precancerous lesions of gastric carcinoma, 111 patients with gastric carcinoma and 31 patients with superficial gastritis. Results The expression of Hp was detected on every stage of precancerous lesions and gastric carcinoma. Compared with the detection rates of Hp, precancerous lesions of gastric carcinoma was higher than gastric carcinoma and superficial gastritis, superficial gastritis was the lowest. The differences of the three were significant (P<0.01). The detection rate of Hp in the gastric mueosa (86.2%, 66.7%, 38.7%, respectively)was obviously higher than in blood serum (80.6%, 52.3%, 32.3%, respectively). Conclusions Hp participates in the process of the precancerous lesions and gastric carcinoma. The expression of Hp both in the gastric mueosa and in the blood serum could be one of the indexes, which might report the process and curative effect of precancerous lesions. With such advantages as simple and applicability, the detection of Hp in the blood serum could be used widely. The endoscopy and the detection of Hp in the gastric mucosa are suggested for patients with Hp positive in the blood serum.

Objective To evaluate the efficacy and safety of trimebutine combined with mosapride on functional dyspepsia. Methods Patients with functional dyspepsia were randomly divided into three clinical groups. Group A (n=116) received 0.2 g trimebutine after meal,group the drug combination B (n=116) received 5 mg mosapride before meal,and the drug combination group (n=115) received 0. 2 g trimebutine after meal plus 5 mg mosapride before meal. All medications were taken orally three times daily for 4 weeks. Improvement in clinical symptoms and adverse reactions in each group were evaluated at the end of study. Results A total of 339 patients among 347 enrollees completed the treatment and follow-up. The clinical efficacy on postprandial fullness, early satiation, epigastric pain, epigastric burning, upper abdominal bloating and nausea were 88. 4%,76. 9%,72. 9%,61. 8%,86. 7% and 81. 7%,respectively in the drug combination group after 4-week treatment,which were superior to those in group A or B (P<0. 05) except for epigastric burning. The total effective rate of the drug combination group was 78. 8%,significantly higher than the other two groups (P<0. 05). The total incidence of side effects in the drug combination group was 1. 8%,similar to that of group A and B (1. 8% and 0. 9%,respectively, P =0. 776). Conclusion Trimebutine combined with mosapride is safe and effective for improving symptoms in functional dyspepsia.

Objective To investigate the efficacy of small interfering RNA against Pseudomonos aeruginosa expressing MexA-MexB-OprM multidrug efflux pump in vivo.Methods Two short hairpin (sh)RNA expression vectors targeting the MexB gene,and negative controls,were designed,synthesized,and electrotransformed into the P.aeruginosa strain PAO1.The in vivo therapeutic efficacy of the MexB small interfering (si)RNAs was determined by infecting a murine model of chronic P.aeruginosa lung infection (1 × 107 CFU/ml).The mice were killed on day 3,5 and 7 after infection with the Pseudomonas aeruginosa strains.Results In the murine infection model,treatment with MexB-siRNAs led to significantly reduced bacteria burden of the bellows by day 5 and 7 post-infection,and reduced the P.aeruginosa-induced pathological changes.In addition,MexB-siRNA2 treatment enhanced neutrophil recruitment and production of inflammatory cytokines (IL-1β,IL-12) in the early infection stage (day 3) (P＜0.05),both of which decreased by day 7.Conclusion MexB-siRNA could inhibit both mRNA expression and the activity of P.aeruginosa in vitro.siRNA was effective in reducing the bacterial load in a murine model of chronic lung infection.Targeting of MexB with siRNA appears to be a novel strategy for treating P.aeruginosa infections.

Neurons in the laterodorsal tegmentum (LDTg) and pedunculopontine tegmental nucleus (PPTg) play important roles in central autonomic circuits of the kidney. In this study, we used a combination of retrograde tracers pseudorabies virus (PRV)-614 and fluorescence immunohistochemistry to characterize the neuroanatomic substrate of PPTg and LDTg innervating the kidney in the mouse. PRV-614-infected neurons were retrogradely labeled in the rostral and middle parts of LDTg, and the middle and caudal parts of PPTg after tracer injection in the kidney. PRV-614/TPH double-labeled neurons were mainly localized in the rostral of LDTg, whereas PRV-614/TH neurons were scattered within the three parts of LDTg. PRV-614/TPH and PRV-614/TH neurons were located predominantly in the caudal of PPTg (cPPTg). These data provided direct neuroanatomical foundation for the identification of serotonergic and catecholaminergic projections from the mid-brain tegmentum to the kidney.

Neurons in the laterodorsal tegmentum (LDTg) and pedunculopontine tegmental nucleus (PPTg) play important roles in central autonomic circuits of the kidney.In this study,we used a combination of retrograde tracers pseudorabies virus (PRV)-614 and fluorescence immunohistochemistry to characterize the neuroanatomic substrate of PPTg and LDTg innervating the kidney in the mouse.PRV-614-infected neurons were retrogradely labeled in the rostral and middle parts of LDTg,and themiddle and caudal parts of PPTg after tracer injection in the kidney.PRV-614/TPH double-labeled neurons were mainly localized in the rostral of LDTg,whereas PRV-614/TH neurons were scattered within the three parts of LDTg.PRV-614/TPH and PRV-614/TH neurons were located predominantly in the caudal of PPTg (cPPTg).These data provided direct neuroanatomical foundation for the identification of serotonergic and catecholaminergic projections from the mid-brain tegmentum to the kidney.