1.Influence of combined administration of lactobacilli and clostridium butyricum on acute mice ulcerative colitis
International Journal of Laboratory Medicine 2009;30(1):33-35
Objective To investigate the therapeutic effect of combined administration of lactobacilli and clostridium butyricum on acute mice ulcerative colitis, and explore its therapeutic mechanism.Methods Dextran sulfate sodium (DSS)-induced mice model of acute ulcerative colitis was established. After administration of lactobacilli and clostridium butyricum, the pathological change of tunica mucosa coli was observed and the expression levels of tumor necorisis factor (TNF-α) and tissue factor (TF) were measured.Results Lactobacilli and clostridium butyricum significantly alleviated the damage of tunica mucosa coli and suppressed the expression of TNF-αand TF. By comparison, there were the lightest histological damage and the lowest expression of TNF-αand TF when lactobacilli and clostridium butyricum were administrated combined.Conclusion Both lactobacilli and clostridium butyricum show therapeutic effect on DSS-induced mice ulcerative colitis. The coordinate repression on expression of TNF-αand TF may be the molecular mechanism of the co-effect on mice UC.
2.Design of Computer Aided System for the research on Material Basis of Effectiveness in Traditional Chinese Drug Decoction
Yang LIU ; Jingjuan WANG ; Weifeng LI
International Journal of Traditional Chinese Medicine 2009;31(2):163-165
Objective According to the methods of the research on material basis of effectiveness in traditional Chinese drug decoction, compile the software for experimental design and data analysis. Methods With ".net" platform, we use Visual Basic 2005 and database knowledge to compile the software that can analyze the HPLC data of WATERS and AGILENT at the same time but do not depend on the original HPLC system. Results Successfully Compiling the software that can help to execute the research on material basis of effectiveness in Chinese medicine decoction and analyze the experimental data. Condusion With this software, we can clearly execute the methodology line and quickly analyze the data.
3.Effects of Shen-fu on the activity of β-adrenoreceptors in cardiopulmonary resuscitation rats
Weifeng XIE ; Xingyi YANG ; Dong WANG
Chinese Journal of Emergency Medicine 2009;18(1):22-25
Objective To study the effects of Shen-fuinjection onthe activity of β-adrenoreceptor in SD rats with cardiopulmonary resuscitation. Method The exprimerit was done at emergency medical lab of Shanghai Changzheng hospital.Cardiac arrest was induced thngh asphyxiation(succinylcholine)and ice-cold 0.5 mol/L KCI in rats,and resuscitation began at five minutes after cardiac orrest.In this experiment,seventy-two male SD rats were randomizly divided into 9 groups:control group(sham group),routine treatment(O.5 h,2 h,4 h,6 h) groups.and Shen-fu treatment(O.5 h,2 h,4 h,6 h),and each group had 8 rats.Rats of Shen-fh treatment groups were injected with shen-fu(20 mL/kg,20 mL/h)during CPR.3H-prazosln Wag used to determine the activity of β-adrenoreceptor in myocyte. The data of the statistic analysiswere presentedin the for mofmeaj14-standard(4-5)deviation.One-way ANOVA was used for muhig Toup comparison,and t-test for comprarison between two groups.Results[3-adrenoreeeptor reached peak at0.5 h after CPR(247.81±8.91)fmol/mg,reached the lowest level at 4 h(104.17 4-13.87)fmol/mg,and returned to the normal level at 6 h(178.53±10.42)fmol/mg.In the eady period.-adrenorecepter activity in control group[O.5 h:(259.91-4-18.09)finol/mJ was similar to that in Shenfu treatment groups(P>O.05).In the late phase,adrenoreeeptor activity in the Shen-fu treatment groups[2 h:(173.04±18.77)fmol/mg,4 h:(148.72±13.88)finoL/mg]was significantly hi#er than that in the control groups(P<0.05).Conclusiom After CPR, ceplor activity firstly rises and then declines,and Shenfu injection Call significantly increase adrenoreceptor activity of mrs in the later period after CPR.
4.Clinical experience of coroflex intracoronary stent
Zhenkun YANG ; Weifeng SHEN ; Jiansheng ZHANG
Chinese Journal of Interventional Cardiology 1996;0(01):-
Objective To evaluate the clinical efficacy of coroflex (BRAUN, Germany) intracoronary stent. Methods To retrospectively analyze the immediate angiographic and clinical follow-up outcomes of 81 patients (pts) receiving coroflex intracoronary stenting. Results 88 coroflex intracoronary stents were implanted in 81 pts. According to ACC/AHA classification, 38 lesions were type A-B 1, 50 lesions were type B 2-C. 52 lesions were de novo, 22 were suboptimal results after PTCA and 14 lesions were bailout for dissections. Stent deployment was successful in 82/88 (93.2%). High-pressure (16-18 atm) balloon was used for stent deployment in 3 lesions with severe calcification. Dissection was occurred at distal of stent in 2 lesions but no inducing flow reduction. Angiography showed TIMI 2 grade after intracoronary stenting in 1 diffused lesion. There were no adverse events occurred during hospital stay. Clinical follow-up of in 75 pts were conducted for 7.5?3.0 (3-13) months, there were no cardiac death or myocardial infarction reported. Complain of angina (CCS class Ⅰ) occurred in 17 pts (22.7%). Repeat angiography was performed in 7 pts, there were 2 in-stent restenosis with successful revascularization. Conclusion Coroflex intracoronary stenting appears to be safe and effective in the treatment of coronary lesions with favorable outcomes.
5.Enterovirus 71 activates the JNK1/2 signaling pathway in human rhabdosarcoma cells
Chao XU ; Yang PENG ; Weifeng SHI
Chinese Journal of Clinical Laboratory Science 2017;35(8):632-636
Objective To investigate the role of c-Jun N-terminal kinase (JNK1/2) signaling pathway in enterovims 71 (EV71) infection.Methods The effects of different concentrations of SP600125 on the activity of human rhabdosarcoma (RD) cells were detected by trypanbalu staining.The levels of VP1 mRNA and protein in EV71-infected RD cells were detected by real time Q-PCR and western blot,respectively.The levels of total and phosphorylated JNK1/2,c-Fos and c-Jun protein were determined by western blot.Last,the effects of.JNK1/2 inhibitor SP600125 on EV71 replication and JNK1/2 signaling pathway were analyzed.Results The results of trypanbalu staining showed that 5 and 10 μmol/L of SP600125 didn't influence on the activity of RD cells (P > 0.05),while 20 μmol/L of SP600125 decreased the survival of RD cells significantly (P < 0.05).Compared with the control,the expression levels of VP1 mRNA and protein in EV71-infected RD cells decreased obviously at 8 hours post-infection (P <0.01).In addition,after RD cells were infected EV71,the levels of phosphorylated JNK1/2,c-Fos and c-Jun increased significantly (P < 0.05).However,the pretreatment of SP600125 decreased the phosphorylation levels of JNK1/2,c-Fos and c-Jun protein obviously (P < 0.05).Conclusion EV71 infection may effectively activate the JNK1/2 signaling pathway in RD cells,which may be related to EV71 replication.
6.The diagnosis on pancreatic lesions with endoscopic ultrasound guided fine-needle aspiration
Xiujiang YANG ; Weifeng XIE ; Dabing REN
Chinese Journal of Digestion 2001;0(08):-
Objective Endoscopic ultrasound (EUS) guided fine-needle aspiration (FNA) of pancreatic lesions is being increasingly used. The aim of the study was to evaluate its safety, accuracy, and clinical utility in the diagnosis of pancareatic diseases. Methods EUS-guided FNA was performed in 21 patients (13 men and 8 women) with pancreatic lesions (16 head/neck, 5 body/ tail) detected by CT scanining, unltrasonography or clinically suspected diagnosis.Three patients with unresectable pancreatic cancer underwent EUS-guided celiac plexus neurolysis(CPN) for pain-relieving. Results The lesions detected by CT scanning (19 cases) and ultrasonography(16 cases) were all confirmed by EUS. Adequate specimens were obtained by EUS-guided FNA in 18 of 21 lesions and final diagnosis in these subjects was pathologically confirmed. EUS-guided FNA had a sensitivity of 85.0%, specificity of 100.0% and accuracy of 85.7% for diagnosis of pancreatic lesions. The final diagnosis was not obtained in three patients due to inadequate specimens. Three patients with pancreatic carcinoma were decreased in pain scores after EUS-CPN. Two cases with complication of mild pancreatitis or post-FNA fever were found. Conclusions EUS-guided FNA of the pancreas was a safe and effective modality for diagnosis and treatment of pancreatic lesions.
7.The meta-analysis of Laurance-Moon-Bardet-Biedl syndrome.
Yihua YANG ; Weifeng NI ; Shenren CHEN
Chinese Journal of Practical Internal Medicine 2000;0(12):-
Objective To deepen the clinicians' impression on the Laurance-Moon-Bardet-Biedl syndrome(LMBBS),we made a summary in the incidence and clinical manifestations of the disease in China comparing with foreigners.Methods We made evidence-based meta-analysis about the 2 cases reports in 1987 and 2003 in our hospital and literature review of 462 cases in foreign countries and 94 cases in China.Results LMBBS patients,with more frequency of consanguinity and family history,retinal dystrophy,mental retardation,obesity,polydactyly,hypogenitalism,often had many complicated and variable clinical manifestations.Conclusion To avoid intrafamiliy marriage would reduce the incidence rate.The diagnostic criteria and ascertainment methods introduced recently do benefit the early diagnosis in their childhood period.
8.Expressions of acetylcholine and norepinephrine in the central nervous system of a rat model of irritable bowel syndrome
Weifeng WANG ; Yunsheng YANG ; Lihua PENG
Medical Journal of Chinese People's Liberation Army 2001;0(12):-
Objective To investigate the expressions of acetylcholine and norepinephrine of the central nervous system in a rat model of irritable bowel syndrome (IBS), and to explore the possible roles of the classical neurotransmitters of the central nervous system in the pathogenesis of IBS. Methods The rat model of IBS was reproduced by intragastric instillation of 2.0ml water at 0-4℃ in male Wistar rats for two weeks. Both the model group and the control underwent rectal distention, then were sacrificed by deep anesthesia. Sections of the posterior horn of the spinal cord and hypothalamus were obtained and processed immunohistochemically using anti-tyrosine hydroxylase (TH) and acetylcholinesterase (AchE) antibodies respectively, and the staining results were analyzed semi-quantitatively using computerized color image analyzer. The statistical difference of the opacity density and immunoreactive areas between two groups was compared by t-test. Results Immunoreactive area, opacity density of AchE immunoreactive tissues in the posterior horn of the spinal cord and hypothalamus of the model group were all significantly higher than those in control group (P0.05). Conclusions The expressions of acetylcholine in the spinal cord and hypothalamus in the rat model of C-IBS were abnormal, which suggested that cholinergic nervous system in the central nervous system may play some roles in the pathogenesis of IBS.
9.EUS-guided one-step drainage of pancreatic pseudocysts: report of 3 cases
Xiujiang YANG ; Weifeng XIE ; Su LIU
Chinese Journal of Digestive Endoscopy 2001;0(01):-
Objective To evaluate the significance of color Doppler EUS in the pancreatic pseudo-cysts drainage. Methods EUS - guided cystoenterostomy was performed in 3 patients. A needle and drainage tube was inserted in a one - step procedure into the cyst through the accessory channel of echoendoscope under EUS. The nasal plastic drainage tube was released immediately after insertion. Results When gastric ulcer and bleeding or the bulge of stomach were not found endoscopically in all patients . The needle with its stylet inserted through the gastric wall into the cyst at the site with minimal distance between them . The mean size of the pseudocysts was approximately 8 cm located at pancreatic tail ,body or the junction of them. In 3 cases but one, the blood flow signal around the cyst was not found . No significant echo of laminated structure between gastric and cyst wall was found . After aspiration or installation of naso-cystic drainage catheter, abdominal pain remitted at 2 days, 2 days and 3 days; the sonography demonstrated that cyst size decreased began from 3rd day ,and the cyst obliterated at 14 and 30 days after drainage. The only complication was found in one patient with gastric mucosal ooze, which recovered after noradrenaline spray . Infection or perforation never occurred. No recurrence of pseudocysts observed at a mean follow - up period of 3. 6 months (range 2-7 months). Conclusions The EUS-guided drainage of pancreatic pseudocysts in one-step is a rather simple and practical procedure with minimal risk of hemorrhage and infection.
10.Pharmacokinetics character of propofol during anhepatic period of pediatric liver transplantation
Yipin ZHU ; Liqun YANG ; Weifeng YU
Academic Journal of Second Military Medical University 2001;0(09):-
Objective: To investigate pharmacokinetics of propofol during anhepatic period of orthotopic liver transplantation (OLT) in children. Methods: In 5 children undergoing OLT, 2 mg/kg propofol was injected intravenously at the beginning of induction and anhepatic periods respectively. The plasma concentration of propofol was measured by reverse-phase high performance liquid chromatography(RP-HPLC), and the pharmacokinetics character of propofol between anhepatic and inducing periods were compared. Results: Propofol had wide distribution and high clearance, and its plasma concentration-time curves were fitted to a three-compartment open model. Conclusion: There is no difference of propofol metabolism between anhepatic and inducing periods, suggesting that there must be notable extra-hepatic metabolism when propofol used in children undergoing OLT.