[Objective]To investigate the effect of chondroitinase ABC(ChABC) after spinal cord injury(SCI) in adult rats,and to evaluate the significance of treatment. [Methods]Forty adult Wistar rats were divided into two groups: the control group(group A),the chondroitinase ABC group(group B).The thoracic T10 spinal cord injury model was made by impactor model II manual.After SCI,group B animals received ChABC treatment,while group A animals only received blank saline.The locomotor functions(BBB score) and the neuroelectrophysiological changes(SEP&MEP) of the rats were evaluated.Twelve weeks after SCI,biotinylated dextran amine(BDA) was injected into the cerebral cortex to trace the corticospinal tracts(CST).Then two weeks after the tracing,the animals were killed and the spinal cord frozen sections were made.The tissue sections were processed with Cy3 fluorescence stain,HE stain and anti NF-200 immuohistological stain.The section images were analyzed by Image Pro Plus image analyzing software.All the statistics were performed by SPSS 13.0 software.[Results]At 4 weeks after SCI,group B had obvious higher BBB scores than control group(P

Objective: To investigate the relationship between the plasma concentration of nitric oxide (NO) and prognosis of the hemorrhagic shock. Method:The blood levels of NO and Lactate (LA) were measured with fluorophotometry and colorimetry in 30 hemorrhagic shock patients,and another 30 patients for elective surgery served as a control. Result :Concentration of NO was significantly lower and that of LA was significantly higher in hemorrhagic shock group than that of control group. NO level had a negative correlation with LA level and injury index. NO level in the patients complicated by sepsis were still lower than the control. Conclusion:Decrease of NO level may result in disturbance of microcirculation and increase of LA. So nitroglycerin should be used as early as possible in the hemorrhagic shock patients.

To investigate the inhibiting effects of ketamine on arterial plasma TNF-? concentration and lung injury in septic shock rat. Method: 40 Wister rats were divided into five groups. 15mg?kg~(-1) endotoxin (LPS) was intravenously injected alone (group Ⅰ)or ip ketamine 50,100 and 200mg?kg~(-1) before LPS, then ketamine was infused at 10mg?kg~(-1)?min~(-1) (Ⅱ, Ⅲ and Ⅳgroup). TNF-? was assessed with ELISA, and at the same time the arterial blood oxygen tension and lung water content were measured. Result: In contrast to normal control level, arterial plasma TNF-? levels and lung water content increased and arterial oxygen tension decreased after LPS in group Ⅰ, but in the rats of giving ketamine, plasma TNF-? level decreased more than that in the rats of giving LPS alone (group Ⅰ), change of arterial blood oxygen tension and lung water content in former groups were better than that of later, in dosage-dependent way. Conclusion: Ketamine can dose-relatedly decrease TNF-? concentration and lung injury degree induced by endotoxin.

Objective The purpose of this study was to assess the effects of heat stress response (HSR) on i of pulmonary arterial endothelium cells (PAEC)incubated with TNF-?. We tried to illustrate the mechanism of injury to PAEC caused by TNF-? and the effects of HSR.Methods The study consisted of four groups.In group Ⅰ confluent monolayer of calf PAEC were directly incubated with TNF-? at final concentrations of 500, 1 000 and 2 000 u/ml for 24 h.In group Ⅱ PAEC were first bathed in 42℃ water for 20 min and then allowed to recover for 24 h.In turn they were incubated with TNF-? at the same concentrations.In group Ⅲ PAEC were not heated and incubated with TNF-?.In group Ⅳ PAEC were heated but not incubated with TNF-?.i of PAEC was assayed by fluorospectrophotometry and i of four groups were compared.The change in i before and after incubation of PAEC with TNF-?(?i) was calculated.Results (1) i was considerably higher in group Ⅰ than that in group Ⅲ at different concentrations in dose-dependent way.(2) Although i was higher in group Ⅳ than that in group Ⅲ, HSR could inhibit the further increase in i of PAEC incubated with TNF-?.Conclusions HSR may decrease the i in PAEC incubated with TNF-?.It indicates that HSR can prevent PAEC from calcium overload and provide protection on PAEC against injuries.

Objective To investigate the effect of FTY720 and gemcitabine on the proliferation and apoptosis of H520 and A549 cells in non-small cell lung cancer(NSCLC) cell line.Methods The interventional influence on the in vitro cultured NSCLC A549 and H520 cells was performed by selecting 0,2,4,6,8,10 μmol/L concentrations of FTY720,then the absorbance value was detected at 24,48,72 h after culture and the proliferation inhibiting effects of FTY720 on A549 and H520 were observed under the condition of different concentration of FTY720;adding single 7 μmol/L of FTY720,single 0.2 μmol/L gemcitabine and 37 μmol / L FTY720 combined with 0.2 mol/L gemcitabine into A549 and H520 cells lines,then the differences of inhibition and apoptosis after 48 h in the cells of each group were observed.Results The inhibitory effect of different concentrations of FTY270 on NSCLC A549 and H520 cell lines was statistically significant difference (P＜0.05).The proliferation inhibiting effect of FTY720 on NSCLC H520 and A549 cell lines had the correlation with the concentration and time.The apoptosis rate of FTY720 combined with gemcitabine on A549 and H520 cells was significantly higher than that of single use in these two drugs (P＜0.05).Conclusion FTY720 combined with gemcitabine can significantly inhibit the proliferation of A549 and H520 in human NSCLC,and can effectively promote the apoptosis of cancer cells,and has the higher clinical value.

Adolescent ; Adult ; Automobile Driving ; China ; Electrocardiography ; Female ; Heart ; physiopathology ; Humans ; Male ; Middle Aged ; Noise, Occupational ; adverse effects ; Occupational Exposure ; adverse effects ; Stress, Psychological ; etiology ; physiopathology ; Vibration ; adverse effects

Hepatitis, Autoimmune ; Humans ; Immunoglobulin G

Objective To investigate the effects of the gene expressions of FAS、FASL、FADD and caspase-8 in esophageal carsinogenesis. Methods Immunohistochemical method was applied to detect the expression of FAS、FASL、FADD and caspase-8 proteins in esophageal epithelium. In situ hybridization method was applied to detect the expression of FADD and caspase-8 mRNA in esophageal epithelium. Results The positive rates of FAS, FADD and caspase-8 proteins and FADD、caspase-8 mRNA were decreased from normal epithelium to dysplasia and carcinoma tissues gradually. The positive rates of FASL protein were increased from normal epithelium to dysplasia and carcinoma tissues gradually. There was very significant statistical difference between carcinoma and normal epithelium(P

MicroRNAs(miRNAs)are a group of non-coding RNA molecules having modulating function,and as a post transcriptional modulating factor is involved in the modulation of expression of eukaryotic genes. Inflammatory bowel disease(IBD)is a chronic non-specific intestinal inflammatory disease and its etiology has not yet been fully clarified. Recent studies have shown that circulating miRNAs were specifically expressed in patients with IBD. This article reviewed the advances in studies on circulating miRNAs and IBD.

Objective To investigate the influence of remote care management on the diet compliance and disease recurrence of patients with pancreatitis. Methods Seventy-four simple pancreatitis patients in our hospital from January 2013 to March 2014 were involved and numbered according to the administration order and divided into the observation group and the control group according to the random number table with 37 cases in each group. The two groups accepted conventional health education during hospitalization time. The control group was given intensive classes after discharge, while the observation group received remote care management. Twelve months later, the rate of disease recurrence and diet compliance of the two groups were observed and compared. Results After the management, the observation group was superior to the control group in diet compliance. The rate of disease recurrence was significantly lower in the observation group than that of the control group (all P<0.05). Conclusion The remote care management can effectively improve the diet compliance of pancreatic patients, lower the recurrence rate, and have positive effect on prognosis.