A clinical laboratory information system consists of two parts--the information system and the management system. Its development is based on scientific and rational lab-workflow, consulting the international standard HL7 Protocol, and combined with barcode technique and instrument communication. The information system mainly manages the data which come from the whole lab testing process while the management system is dominating the lab office work and management decisions.
Automatic Data Processing ; Clinical Laboratory Information Systems ; standards ; Computer Communication Networks ; Databases as Topic ; Management Information Systems ; Software Design

Background The select of supporter is critical for the construction of tissue engineering cornea.Many carrier carl be utilized in the construction of tissue engineering cornea,but de-cellular corneal matrix is known to be one of optimal supporters.Objective Present study was to investigate the characteristics of de-cellular corneal matrix of porcine of structure and biocompatibility for rabbit cornea stroma and limbal epithelial ceHs. Methods The porcine cornea was prepared as de-cellular corneal matrix of porcine by the application of detergent enzyme combined process.The corneal epithelial cells,keratocyte and endothelial cells of porcine were removed completely and stored in -20℃ refrigerator after sterilization.The morphology of de-cellular corneal matrix of porcine was examined by hematoxylin-eosin staining under the light microscope.The structure characteristics of de.cellular corneal matrix of porcine under the scan electron microscope,and its physics features were investigated by the evaluation of water content,strength,expansion and transparency.The de-cellular corneal matrix of porcine were implanted to cornea stroma of rabbit and co-cultured with rabbit corneal epithelial cells for 4 weeks in vitro to assess the keracyte compatibility. Results The epithelial cells,keratocyte and endothelial cells of porcine were removed completely by trypsogen digestion.The collagen fibril network and collagen plates paralleled to corneal surface under the light microscope.The water content,strength,expansion。Ratio of light transparency of de-cellular corneal matrix of porcine were similar to normal porcine cornea.After implantation of de.cellular comeal matrix of porcine into rabbits corneal stroma,the edema of tissue was found in one week,and edema disappeared on two weeks and became clear on four weeks after surgery.The de-cellular eorneal matrix attached to rabbit cornea stroma well.No inflammatory eell and new vessel were found after surgery.The co-cultured rabbit corneal epithelial cells differentiated and proliferated on the surfaee of de-cellular corneal matrix and showed positive response for CK3.No statistically significant differences were found in the water content,strength,expansion of de-cellular cornea matrix of porcine among the normal,before dehydration,2 and 4 hours after dehydration cornea matrix(P＞0.05).However,the transparency was much better in the corneal matrix with 2-hour,4-hour dehydration in comparison with non-dehydration one(P＜0.05). Conclusion The structure features of de-cellular cornea matrix of porcine are similar to normal porcine cornea.Good biocompatibility is proved for xenogenesis of rabbit cornea.

OBJECTIVETo observe the inhibitory effect of 4-chlorobenzoyl berbamine (BBD9) on imatinib-resistant cell line K562 (K562/IR) in vitro and in vivo and explore the mechanisms.

METHODSThe IC50 of BBD9 and berbamine (BBM) was determined by MTT assay. The expressions of p210(Bcr-Abl), IKKa, cytoplasmic and nuclear NF-κBp65 were determined using Western blotting in K562/IR cells following a 48-h exposure to 0.5 µg/ml BBD9 or 8 µg/ml BBM. Flow cytometry was used to analyze the cell viability, apoptosis and necrosis; Western blotting was employed to determine the expressions of PARP, caspase-3, caspase-9 and LC3II in K562/IR cells exposed to different concentrations of BBD9 for 48 h. In nude mouse models bearing K562/IR cell xenograft, the tumor weight, tumor regression, and body weight changes of the mice were measured after treatments with 15 mg/kg and 30 mg/kg BBD9 and 100 mg/kg imatinib.

RESULTSThe IC50 of BBD9 and BBM was 0.73 µg/ml and 5.43 µg/ml, respectively. In K562/IR cell cultures, the expressions of p210(Bcr-Abl), IKKa and nuclear NF-κB p65 were all decreased following BBD9 and BBM treatments, but BBD9 produced more potent effect; cytoplasmic NF-κB p65 showed no obvious changes after the treatments. The cell apoptosis and necrosis increased with the concentrations of BBD9, which also dose-dependently increased the levels of cleaved caspase-3, csapase-9, PARP, and LC3II expression. In the tumor-bearing mouse model, BBD9 showed stronger effects than imatinib in reducing the tumor weight, promoting tumor regression, and increasing the body weight.

CONCLUSIONBBD9 can effectively inhibit the growth of K562/IR cells in vitro and in vivo by activating cell apoptosis, necrosis and autophage pathways, down-regulating expressions of p210(Bcr-Abl) and IKKa and suppressing the cytoplasm-to- nucleus translocation of NF-κBp65.

Animals ; Antineoplastic Agents ; pharmacology ; therapeutic use ; Benzamides ; Benzylisoquinolines ; pharmacology ; therapeutic use ; Drug Resistance, Neoplasm ; Female ; Fusion Proteins, bcr-abl ; metabolism ; Gene Expression Regulation, Neoplastic ; Humans ; I-kappa B Kinase ; metabolism ; Imatinib Mesylate ; K562 Cells ; Liver Neoplasms, Experimental ; drug therapy ; metabolism ; Mice ; Mice, Nude ; Piperazines ; pharmacology ; Protein-Tyrosine Kinases ; antagonists & inhibitors ; Pyrimidines ; pharmacology ; Transcription Factor RelA ; metabolism ; Xenograft Model Antitumor Assays

OBJECTIVEThe prevalence of non-alcoholic fatty liver disease (NAFLD) has markedly increased. Insulin resistance has been implicated in the pathogenesis of NAFLD. This study was aimed at observing the relationship between insulin resistance and NAFLD, and evaluating the role of pioglitazone (PGZ) acting as insulin-sensitizing agents in the prevention and treatment of rat fatty liver induced by high fat feeding.

METHODSThe rats were separated randomly into 6 groups: model group I were fed high fat diet for 8 weeks, PGZ prevention group were given PGZ 4 mg/(kg.d) simultaneously, while control group I were fed normal food for 8 weeks; model group II were fed high fat diet for 16 weeks, PGZ treatment group were given PGZ 4 mg/(kg.d) orally simultaneous with high fat diet for 8 weeks after high fat feeding for 8 weeks, control group II were fed normal food for 16 weeks. The rats were sacrificed after 8 weeks and 16 weeks respectively. Liver weight, body weight, serum activities of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), tumor necrosis factor alpha (TNF-alpha), fasting blood glucose (FBG), fasting plasma insulin (FINS), HOMA (homeostasis model assessment) insulin resistance index (HOMA-IR), and the liver histology of rats of all groups were assayed.

RESULTSAfter 8 weeks, the liver in model group I showed typical steatosis, accompanied with mild to moderate lobular inflammatory cell infiltration, liver indexes and serum levels of ALT, AST, ALP, TNF-alpha were significantly increased (P<0.05) compared with control group I. Whereas, the degree of hepatic injury was attenuated in PGZ prevention group, liver indexes and serum levels of ALT, ALP were significantly decreased (P<0.05) compared with model group I. After 16 weeks, notable steatosis, and lobular inflammation were observed in model group II rat liver, while the degree of hepatic injury was attenuated in the PGZ treatment group. Liver index, serum levels of ALT, AST, ALP, FINS and HOMA-IR were significantly increased (P<0.05) in model group II compared with control group II. Whereas, in PGZ treatment group, serum levels of AST and FINS showed decreasing tendency, liver indexes, serum levels of ALT, ALP, TNF-alpha and HOMA-IR were significantly decreased compared with model group II.

CONCLUSIONInsulin resistance plays a role in the pathogenesis of NAFLD in rats. Pioglitazone can attenuate insulin resistance and biochemical and histological injury in high fat-induced fatty liver in rats.

Alanine Transaminase ; blood ; Alkaline Phosphatase ; blood ; Animals ; Aspartate Aminotransferases ; blood ; Fatty Liver ; drug therapy ; etiology ; metabolism ; pathology ; Insulin Resistance ; Liver ; pathology ; Male ; Rats ; Rats, Sprague-Dawley ; Thiazolidinediones ; therapeutic use ; Tumor Necrosis Factor-alpha ; analysis

Animals ; Dietary Fats ; adverse effects ; Fatty Liver ; pathology ; prevention & control ; Hypoglycemic Agents ; therapeutic use ; Male ; Rats ; Rats, Sprague-Dawley ; Thiazolidinediones ; therapeutic use

In order to get some novel compounds with potent iNOS inhibitory activity, 12 target compounds of N-[ 4-( benzimidazole-2-thio) phenyl ] -N'-alkyl guanidine derivatives ( I1- I12 ) were synthesized from 1-benzoyl-3-[ 4-( benzimidazole-2-thio) phenyl] thioureas (4) by hydrolysis with 2. 0 mol x L(-1) sodium hydroxide solution containing tetrahydrofuran to form the corresponding N-[ 4-(benzimidazole-2-thio) phenyl] thioureas (5) which was S-ethylated with ethyl iodide, followed by amination with primary amines or secondary amines. The intermediate 4 was synthesized from 2-mercaptobenzimidazole (1) by reaction with 1-chloro-4-nitrobenzene to form 2-( 4-nitrophenylthio) benzimidazole (2) which was reduced by iron powder and hydrochloric acid, followed by reaction with benzoyl isothiocyanate. The structures of compounds I1 - I12 were confirmed by IR, MS,1H NMR and elemental analysis. The results of preliminary pharmacological test showed that the activities of three compounds (I 1, I8 and I10) were stronger than aminoguanidine, especially for compound I1.
Animals ; Benzimidazoles ; chemical synthesis ; chemistry ; pharmacology ; Cells, Cultured ; Dose-Response Relationship, Drug ; Enzyme Inhibitors ; chemical synthesis ; chemistry ; pharmacology ; Guanidines ; chemical synthesis ; chemistry ; pharmacology ; Macrophages, Peritoneal ; cytology ; drug effects ; enzymology ; Mice ; Molecular Structure ; Nitric Oxide Synthase Type II ; antagonists & inhibitors ; metabolism

OBJECTIVETo explore the association of fractalkine (FKN) and CD11c expressions oncommon carotid artery atherosclerotic plaques from apoE(-/-) mice with the severity of atherosclerotic lesions.

METHODSTotally 24 apoE(-/-) mice were divided into two groups and fed on a high-fat diet or a normal diet for 12 weeks. Then the blood lipids as well as the plaque area and vascular stenosis rate of the common carotid artery were measured to evaluate the severity of atherosclerotic lesions of the animals. Moreover, immunohistochemical staining was performed to examine the levels of FKN and CD11c expression.

RESULTSThe plaque areas and vascular stenosis rates of the common carotid artery in the experimental group were remarkably larger than those in control group (about 4-fold and 2-fold, respectively). The level of FKN expression in the experimental group was 2 times of that in the control group (P<0.05), and the number of CD11c (+) cells in the plaques in the experimental group was about 4 times of than in the control group (P<0.05).

CONCLUSIONThe expressions of chemokine and FKN remarkably increase in apoE (-/-) atherosclerotic plaques, suggesting that chemokine and FKN may paly important roles in the development of atherosclerosis.

Animals ; Atherosclerosis ; metabolism ; pathology ; CD11 Antigens ; metabolism ; Chemokine CX3CL1 ; metabolism ; Diet, High-Fat ; Disease Models, Animal ; Mice ; Mice, Knockout ; Plaque, Atherosclerotic ; pathology

BACKGROUNDLumiracoxib is a highly selective cyclooxygenase-2 (COX-2) inhibitor with antiinflammatory, analgesic and antipyretic activities comparable with class specific drugs, but with much improved gastrointestinal safety. No studies have examined lumiracoxib for antitumorigenic activity on human nonsmall cell lung cancer cell lines in vitro or its possible molecular mechanisms.

METHODSThe antiproliferative effect of lumiracoxib alone or combined with docetaxol on A549 and NCI-H460 lines was assessed by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Drug-drug interactions were analyzed using the coefficient of drug interaction (CDI) to characterize the interactions as synergism, additivity or antagonism. Morphological changes were observed by acridine orange fluorescent staining. Extent of apoptosis was determined by flow cytometry.

RESULTSLumiracoxib (15 - 240 micromol/L) has an inhibitory effect on the proliferation of A549 and NCI-H460 cell lines in concentration- and time-dependent manners with the IC50 values of 2597 micromol/L and 833 micromol/L, respectively. The synergistic effect was prominent when lumiracoxib (15 - 240 micromol/L) was combined with docetaxol (0.2 - 2 micromol/L) (CDI < 1). Fluorescent staining showed that lumiracoxib could induce apoptosis in A549 and NCI-H460 cells. Lumiracoxib treatment also caused an increase of the sub-G1 fraction in each cell line and resulted in an increase of G0/G1-phase cells and a decrease of S-phase cells.

CONCLUSIONSLumiracoxib had antiproliferative effect on the human nonsmall cell lung cancer cell lines A549 and NCI-H460 and had a significant synergy with docetaxol, which may be related to apoptotic induction and cell cycle arrest.

Apoptosis ; drug effects ; Carcinoma, Non-Small-Cell Lung ; drug therapy ; pathology ; Cell Cycle ; drug effects ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Cyclooxygenase 2 Inhibitors ; pharmacology ; Diclofenac ; analogs & derivatives ; pharmacology ; Humans ; Lung Neoplasms ; drug therapy ; pathology ; Taxoids ; pharmacology

This paper introduces the application of a calling and queuing system for blood sample collection in a large hospital in China. Besides the basic function, it has following functions. (a) A real name system: get the number according to the laboratory application form to prevent the phenomena of buying a number and an empty number. (b) Two times waiting: the patient should wait at the main hall, then at the blood sampling window so as to improve the work efficiency. (c) The flowchart for an outpatient blood testing is as following: getting the number --> waiting --> blood sampling --> getting the test information report. This system is capable of not only optimizing the work flow, but also improving the clinical environment. It shortens the patient's waiting time and raises the laboratory quality as well.
Ambulatory Care ; methods ; Ambulatory Care Information Systems ; Blood Specimen Collection ; Laboratories, Hospital ; organization & administration

AIMTo synthesize a series of 2-arylimino-4-thiazolidone derivatives and 2-imidazolino [2,3-b]-4-thiazolidone in order to get some novel potent compounds with nitric oxide synthases (NOS) inhibitory activity.

METHODSThe target compounds were prepared by reaction of N-chloroacetyl-1,2,3,4-tetrahydroisoquinoline or N-chloroacetylphthalimide with substituted thioureas, their NOS inhibitory activity were measured.

RESULTS AND CONCLUSIONThe 15 new compounds were synthesized and most of the reaction yields were over 65%. The structures of new compounds were identified by IR, 1H NMR, MS and elemental analyses. Bioassay indicated that, most of 15 new compounds synthesized had confirmed bioactivities inhibition against NOS.

Molecular Structure ; Nitric Oxide Synthase ; antagonists & inhibitors ; metabolism ; Structure-Activity Relationship ; Thiazoles ; chemical synthesis ; chemistry ; pharmacology ; Thiourea ; analogs & derivatives