OBJECTIVE:To investigate the inhibitory effect of ligustrazine on the formation of macrophage-derived foam cells and its possible mechanism. METHODS:Human acute mononuclear cells (THP-1) were incubated with 160 nmol/L phorbol ester (PMA) for 24 h to differentiate into macrophages;and the macrophages were incubated with oxidized low-density lipoprotein (ox-LDL)culture solution containing 80 mg/L for 24 h to differentiate into macrophage-derived foam cells. And then the cells were randomly divided into blank control group(ox-LDL),model(AngⅡ)group,positive control(valsartan)group,and ligustrazine low,medium and high concentration groups(the mass concentration were 0.025,0.05 and 0.1 g/L). After all cells were respective-ly incubated with 80 mg/L ox-LDL culture solution for 48 h,oil red O staining was adopted to observe the transformation rate of foam cells,enzyme chemical method was used to determine the content of cholesterol,and real-time quantitative polymerase chain (RT-PCR)and Western blot were conducted to detect expression levels of Acyl-coenzyme A cholesterol acyltransferase-1(ACAT-1) mRNA and its protein. RESULTS:Compared with blank control group,the transformation rate of foam cells and content of choles-terol in model group were increased,and the expression levels of ACAT-1 mRNA and its protein were obviously strengthened,with significant differences(P<0.01 or P<0.05). Compared with model group,the transformation rate of foam cells and content of cho-lesterol in positive control group(valsartan)and ligustrazine low,medium and high concentration groups were decreased,and the expression levels of ACAT-1 mRNA and its protein were obviously weakened,with significant differences (P<0.01 or P<0.05). CONCLUSIONS:Ligustrazine can inhibit the macrophages differentiating into foam cells,by a mechanism that may be related to inhibiting expression of ACAT-1,and reducing content of cholesterol to reduce formation of foam cells.

OBJECTIVE To discuss the hospital infection management in infectious disease ward,to improve the ward quality of hospital infection,and to prevent and control infection inside hospital.METHODS By the plan,do,check and action(PDCA) circle method to collect information,analyze cause,establish plans,and organize to put into practice and check management.RESULTS Making the control quality of hospital infection improved obviously,various index signs attain the Hospital infection management norm and The disinfection technique norm issued by Ministry of Health and infection managment standard requirement for third class grade A hospitals.CONCLUSIONS Inducting PDCA circle method and step by step to insist on it is a good method to improve the control quality of hospital infection.

OBJECTIVE:To prepare rapid-disintegrating oral tablets of indometacin and establish a method for its quality control.METHODS:The formula of the oral tablets was optimized by orthogonal test with the formula quality of CMS-Na(A),L-HPC(B),MCC(C),manniton(D) as factors,and the disintegrating time as index.The content of indometacin was determined by ultraviolet spectrophotometry.RESULTS:The optimal formula of the tablets was the following,A∶B∶C∶D=5∶5∶50∶5.The preparation was white in color and its quality was up to the related standard specified in Chinese Pharmacopeia (2005 edition) in identification.The linear range of indometacin was 2.08～41.6 ?g?mL-1 (r=0.999 9).The average recovery was 99.3%.The intra-day RSD=0.53% and inter-day RSD=0.74%.CONCLUSION:The preparation is simple and feasible in preparation process,and controllable in quality.

Acupuncture Therapy ; Adult ; Female ; Humans ; Lumbosacral Region ; injuries ; Male ; Middle Aged ; Sprains and Strains ; therapy ; Young Adult

Cell Line, Tumor ; Cell Proliferation ; drug effects ; Flow Cytometry ; methods ; Humans ; Point Mutation ; Stomach Neoplasms ; genetics ; pathology ; Tumor Suppressor Protein p53 ; genetics ; pharmacology

China ; epidemiology ; Humans ; Incidence ; Occupational Diseases ; epidemiology

Objective To explore the application value of endoscopy in the diagnosis and treatment of patients with gastrointestinal bleeding.Methods The clinical data of 74 patients with digestive tract hemorrhage underwent gastroscopy and treatment were retrospectively analyzed.The effect of gastroscopy was compared at different time and different treatment methods.Results Endoscopic examination showed 23 cases of duodenal ulcer disease (31.08％),including 15 cases of gastric ulcer(20.27％),10 cases of acute gastric mucosal lesion (13.51％),8 cases of gastric cancer(10.81％),gastrointestinal complex ulcer in 7 cases (9.46％),4 cases of gastritis (5.41％),anastomotic ulcer or erosion in 4 cases (5.41％),no lesions in 3 cases (4.05 ％).71 cases were clearly diagnosed by gastroscopy,the detection rate was 95.95％,the hemorrhage in 48h positive rate was 100.00％,which was significantly higher than 87.50％ of the hemorrhage 48h detection rate (x2 =13.33,P ＜ 0.05).71 patients received endoscopic treatment,67 patients were successful,the success rate was 94.37％,the injection of hemostatic success in 16 cases (94.12％),spraying hemostasis successfully in 51 cases (94.44％),there was no significant difference (x2 =-0.01,P ＞ 0.05).Conclusion In the patients with gastrointestinal bleeding,gastroscopy has advantages of high diagnostic accuracy,accurate curative effect,can shorten the bleeding time,improve the success rate of hemostasis,improve the prognosis,with high clinical value.

Inflammatory bowel disease(IBD)is a chronic nonspecific intestinal inflammatory disease and the etiology and pathogenesis are not fully clarified. Studies showed that immune factors play an important role in the pathogenesis of IBD. Cytapheresis(CAP)is a new blood purification method which can selectively filter or adsorb the inflammatory cells and cytokines in systemic circulation. Many studies confirmed that CAP had some therapeutic effect on IBD. This article reviewed the advances in study on CAP in treatment of IBD.

Calpains are calcium-modulated proteases which respond to Ca2+ signals by removing limited portions of protein substrates,thereby irreversibly modifying their functions.Members of calpains are present in a variety of organisms in human.Calpains mediates crucial cellular functions,including rearrangement of cytoskeletal proteins and protein cleavage to activate various receptors and pro-enzymes.The abnormal activation of calpains is one of the important mechanisms in several pathogenesis,including neurodegenerative diseases,traumatic brain and spinal cord injuries,cataracts and ischemia-associated injuries.The recent findings on the role of calpains and its inhibitors in the liver injury will be reviewed in this paper.

Objective In this report the proteomics technique was used for analysis of the Molecu-lar marker related acute rejection after liver transplantation.Methods Highly abundant proteins in human serum were deleted using Aurum Serum Protein Mini Kit and separated by 2-DE.The maps were analyzed by ImageMaster 2D Platinum software.The differential proteins on the gel were did in gel digestion with trypsin and then identified by nanoUPLC-ESI-MS/MS.Results Reproducible 2-DE image was successfully ob-tained.2 up-regulated expressed protein spots were identified clearly are serum amyloid A protein.Conclu-sions In this study, it was confirmed that SAA expression upregulate after transplantation in patients with acute rejection by proteomics technique, This method may provide clues to the early diagnosis of liver al-lograft rejection.