Objective To investigate lipopolysaccharide (LPS) stimulates the expression of nuclear factor-KB (NF-κB) mRNA and tumor necrosis factor-a( TNF-α) mRNA in rat's pancreatic acinus AR42J cell line, and further address the pathogenesis of acute pancreatitis. Method The AR42J cell line was stimulated with different concentrations of LPS (0.001, 0.01, 0.1, 1.0, 10 and 100 mg/L) for 18 hours, or stimulated with 10 mg/L of LPS for different lengths of time (2, 6, 12,18 and 24 hrs) .Then, the expressions of NF-κB-P65 mRNA and TNF-α mRNA were determined by using RT-PCR, the levels of TNF-α protein in the culture supernatant were measured with radio-immuno assay (RIA), and the correlation between the expressions of TNF-α mRNA and NF-κB mRNA was analyzed. Results Both the expressions of NF-κB mRNA and TNF-α mRNA were up-regulated when AR42J cell line was stimulated with 10 mg/L of LPS for 2 hours or with 0.001 mg/L of LPS for 18 hours in both dose-dependent and time-dependent manners. Similarly, the levels of TNF-α protein were up-regulated when AR42J cell line was stimulated with 0.01 mg/L of LPS for 18 hours or with 10 mg/L of LPS for 6 hours in both dose-dependent and time-dependent manners. Statistical analysis revealed the positive correlation between the expressions of TNF-α mRNA and NF-κB-P65 mRNA(r = 0.962, P < 0.01). Conclusions LPS stimulates the expressions of TNF-α mRNA and NF-κB mRNA in both dose-dependent and time-dependent manners, and their expressions are closely correlated, suggesting the inhibition of their expressions as a potential therapeutic target for acute panceatitis.

AIM: To investigate the effects of Src family kinases (SFKs) on adenosine 5'-triphosphate (ATP)-induced long-term potentiation (LTP) in the spinal dorsal horn. METHODS: Male Sprague-Dawley rats (250-280 g) were used in the experiments. Western blotting, electrophysiological recording in spinal dorsal horn in vivo and immunohistochemistry were used in the study. The C-fiber-evoked field potentials were recorded at the superficial layers of spinal dorsal horn at the lumbar enlargement and the phosphorylation level and location of SFKs in spinal dorsal horn were examined by Western blotting and immunohistochemistry. RESULTS: Thirty min and 60 min after ATP application, the levels of phosphorylated SFKs (p-SFKs) were significantly increased.The p-SFKs were expressed in microglia, but not in astrocytes or neurons. Spinal application of SFK inhibitors prevented ATP-induced LTP. CONCLUSION: Microglial SFKs may play an important role in ATP-induced LTP of C-fiber evoked field potentials in the spinal dorsal horn.

Objective To study the imaging value in diagnosis of congenital cholangiectasis.Methods The clinical and imaging (CT and ultrasonics) data of 6 patients with congenital cholangiectasis were restrospectively analyzed with literature review.Results According to Todani's classifications of cholangiectasis,there were type I in one case,CT showed cystic hypodense shadow with thin and smooth wall;type IV in 4 cases,CT showed cystic or fusiform extension of intra-and extra-hepatic bile ducts;type V in one case,CT showed cystic extension of intra-hepatic bile ducts,and the central spot enhancement could be seen on contrast-enhanced CT scan.6 cases underwent ultrasonic examinations,ultrasound showed extension of intra-and extra-hepatic bile ducts in 6 cases,choledochal cyst in one.4 cases suspected with congenital cholangiectasis,and misdiagnosed in one.In company with cholecystitis and cholelithiasis in one,biliary carcinoma in one and cirrhosis in one.Conclusion CT and US are of important value in diagnosis of congenital cholangiectasis.

Objective To investigate the effect of escitalopram treatment on cognitive bias to the emotional facial information in patients with panic disorder. Methods 30 patients met CCMD-3 criteria for panic disorder were enrolled as research group and marched sexual and age 30 healthy persons enrolled as control group. Patients were treated with escitalopram for 8 weeks. All participants measured with dot-probe task of emotional facial information at base and after 8 weeks. RTs and attentional bias scores were compared respectively. Results After 8 weeks,HAMA scores (7. 81 ± 2. 52) in research group were lower than that of at base ( 17. 23 ± 3. 12) (P = 0.002). A repeated measure ANOVA revealed a significant probe site main effect (F(1,58) =4. 34, P = 0.031 ) , RTs of antarafacial site were longer than that of homonymy site. It revealed a significant probe site and group interaction(F(1,58) =16.15, P=0.000) ,a significant emotional facial information type and probe site interaction(F(1,58)=9.25, P =0.015) ,and a significant emotional facial information type × probe site× group interaction(F(1,58) =7. 31, P = 0. 002). LSD test showed that RTs of antarafacial site to fear facial information in research group were longer than that of homonymy site(P = 0.0009). RTs and attention bias scores of antarafacial site to fear facial information after 8 weeks in research group were lower than that of at base(P=0.032,0.008). Conclusion Patients with panic disorder have the cognitive bias to the fear facial emotional stimulus, and escitalopram treatment might improve the cognitive bias.

Objective To investigate the event-related potentials( ERPs) characters of implicit cog-nitive basis in patients with alcohol dependence(AD). Methods Implicit association task and ERPs were detected in 30 individuals with alcohol dependence and 30 controls. Results In patients group,it revealed interaction between picture type and attitude words(F(1,29)= 32.08, P=0.003),and RTs to alcohol-related picture-positive words((653.2±42.3)ms and RTs to non-alcohol-related picture-negative words((698.5±38. 1)ms) were faster than those of non-alcohol-related picture-positive words((680.2±40.1)ms) and alcohol-related picture-negative words((713.3±43.3)ms).Additionally,the main effects of picture type and attitude words was significant.RTs to alcohol-related picture were faster than those to non-alcohol-related picture. RTs to alcohol-related picture-positive words in patient group were faster than those of controls((710.0±32.3) ms, P=0.009).In patients group,it revealed interaction between P3 amplitudes for picture type and attitude words.P3 amplitudes to alcohol-related picture-positive words were higher than those of P3 amplitudes to al-cohol-related picture-negative words. Interaction among picture type, attitude words and electrode sites was significant in patient group. Conclusions Patients with alcohol dependence present implicit cognitive basis to alcohol related information,and front,front-central and central are neurophysiological architecture.

AIM To establish a new, simple, stable and classical experimental model of acute edematous pancreatitis. METHODS Male mice were injected intraperitoneally 2?200 mg?(100 g) -1 body weight of L-arginine in an 1 h interval, as a 20% solution in 0.15 mol?L -1 NaCl. Control mice received the same quantity of 0.15 mol?L -1 NaCl. The mice were killed at 6, 12, 24, 48, 72 h following L-arginine administration. The serum amylase level, wet/dry weight ratio of the pancreas, histologic were assessed. RESULTS The serum level of amylase was significantly elevated at 6 h,reached the peak level at 24 h, normalized at 72 h. Histologic examination revealed interstitial edema and inflammatory cell infiltration reached the peak level at 24 h and decreased at 48,72 h. The wet/dry weight ratio of the pancreas changed in accordance with the interstitial edema. CONCLUSIONS The present study has demonstrated that the administration of excessive doses of arginine induces a new, noninvasive experimental model of acute edematous pancreatitis.

Objective To investigate the clinical effect of treatment with local skin flap after primary surgical resection of non melanoma skin cancer.Methods A total of 176 patients with head and facial skin cancer who were admitted into our hospital from September 2008 to September 2015 were divided into three groups according to different repair plans.Namely,the suture group (41 cases),the local skin flap group (81 cases) and the skin graft group (54 cases).The repair effect of the three groups were compared after the operation.Results The good rate was 68.39%(28/41) in the suture group,98.77%(80/81) in the local skin flap group,and 83.33%(45/54) in the skin graft group,and it was significantly higher than any of the other two groups with statistically significant difference(P<0.05).The satisfaction rate of the local skin flap group was significantly better than that of the suture group,and the difference was statistically significant(P<0.05).But there was no significant difference in the satisfaction rate when compared with the skin graft group(P>0.05).The 3 groups were followed up for a period of 1 year,as a result,there was no recurrence and distant metastasis.Conclusion For patients with head and facial non melanoma skin cancer,repaired with local skin flap healing treatment after primary surgical resection can not only get high healing rate but also significant improvement of patient satisfaction rate.In addition,it can lower the rate of recurrence and distant metastasis after operation.

AIM:To investigate the effects of P2X4 receptor on peri-sciatic administration of recombinant rat TNF-α(rrTNF)-induced mechanical allodynia.METHODS:Male Sprague-Dawley rats (180~200 g) were used in the experiments.The levels of P2X4 receptor on day 3, day 7 and day 14 after peri-sciatic administration of rrTNF were exam-ined by Western blot, and the location of P2X4 receptor in the spinal dorsal horn was observed by double immunofluores-cence staining.The changes of 50%paw-withdrawal thresholds of the rat were detected by behavioral test, and the level of TNF-αin the spinal dorsal horn was also examined by Western blot when TNP-ATP was intrathecally injected before the ad-ministration of rrTNF.RESULTS:Compared with control group, the expression of P2X4 receptor in the spinal dorsal horn on the ipsilateral side significantly increased on day 3, day 7 and day 14 (P<0.01) after rrTNF (100 ng/L) administra-tion.P2X4 receptor was co-localized only with microglia, but not with neurons or astrocytes.Intrathecal injection of TNP-ATP before rrTNF administration prevented mechanical allodynia induced by rrTNF and inhibited the upregulation of TNF-αin the spinal dorsal horn.CONCLUSION:P2X4 receptors in microglia may be involved in rrTNF-induced mechanical allodynia by the upregulation of TNF-αin the spinal dorsal horn.

Background and purpose: In recent years indirubin-3'-monoxime has been found to be capable of inhibiting some cell proliferation in vitro and in vivo studies, but human colon cancer HT-29 cells, therefore the purpose in this paper was to study the effect of indirubin-3'-monoxime on proliferation and apoptosis of HT-29 cells and its associated mechanism. Methods: HT-29 cells were treated with indirubin-3'-monoxime. The proliferative status of cells was measured by methabenzthiazuron (MTT) assay, flow cytometry (FCM) was used to measure the apoptosis rate. RT-PCR was used to measure the transcription of apoptosis suppressor gene bcl-2, survivin and apoptosis promoting gene Bar. Results: Indimbin-3'-monoxime inhibited growth of HT-29 cells in a dose-dependent and time-dependent manner (F=11.25, P<0.01). The apoptosis rate increased after the treatment by indirubin-3'-monoxime at 10 μmol/L. There were significant differences between different time groups (F=195.25, P<0.01). The transcription of survivin (F=78.75, P<0.01) and Bax (F=87.61, P<0.01) mRNA in HT-29 cells were increased; the transcription of bcl-2 was significantly decreased (F=95.82, P<0.01). Conclusion: Indirubin-3'-monoxime has obviously inhibited proliferation and induce apoptosis of colon cancer HT-29 cells, its mechanism may be related to decrease the bcl-2/Bax ratio.

Objective To compare the short-term efficacy and adverse effects of docetaxe or oxaliplatin combined with capecitabine in the treatment of late-staged gastric cancer in aged patients. Methods Eighty-two aged patients with late-staged gastric cancer were randomly divided into two groups,of which 38 patients were treated group) ,and 44 patients were treated with oxaliplatin (100 mg/m2 ivgtt on 1st day) and eapecitabine (2000 mg/1 cycle). Results There is no failure of follow-up. In the docetaxe group,the effective rate was 52.63% (20/38) and 54.55 % (24/44) for the docetaxe and oxaliplatin group,respectively (P>0.05). The median progression-free survival(PFS) in the docetaxe group (6.1 months) was similar to that in the oxaliplatin group (6.3 months) (P>0.05). Gastrointestinal response,myelosuppression and neurotoxicity (Ⅰ or Ⅱ level) were the most common ad-verse effects observed in both groups (P>0.05). No chemotherapy-related death was observed. Conclusions The short-term efficacy of decetaxe or oxaliplatin combined with capecitabine in the treatment of late-staged gastric cancer in aged patients is similar,and the adverse effects are all within tolerance limits.