objective To study the relationships between TNF-β gene type in idiopathic dilated cardiomyopathy (IDC). Methods Eighty-six IDC patients were chosen as IDC group and 95 cases unrelated healthy people as control group in the First Hospital of Jilin University in 2008. The levels of TNF-β protein were detected with Enzyme-linked immunosorbent assay(ELISA ). TNF-β polymorphism were analyzed by polymerase chain reaction-restriction fragment length polymorphisms(PSR-RFLP). Results The levels of TNF-β protein in IDC patients[(1.876±1.013) μ/L] were significantly higher than controls[(1.018±0.645)μg/L], the difference being statistically significant (t=2.674,P<0.01). The frequency of TNFβ*2 genotypes in IDC patients[63.4%(109/172] was significantly higher than controls[47.9%(91/190)], the difference being statistically significant(OR=1.88, X2=6.78, P<0.05). Conclusions The TNFβ*2 allele might related to idiopathic dilated cardiomyopathy (IDC), can also be considered as one of susceptible genes of IDC

Aim To investigate the effects of atorvas-tatin ( ATV) on activation and injury of microvascular endothelial cells induced by oxidized low density lipo-protein ( ox-LDL) . Methods Cultured human micro-vascular endothelial cells were pre-incubated with ATV for 24 h prior to exposure of endothelial cells to ox-LDL. After exposure of endothelial cells to ox-LDL, the cell viability was measured by MTT method, LDH in supernatants was determined by enzyme activity as-say kit, ICAM-1 in supernatants was assayed by using ELISA method, phosphorylation of NF-κB p65 was de-tected by western blot analysis, transcriptional activity of NF-κB signal pathway was measured by employing dual-luciferase reporter assay system. Results Hu-man microvascular endothelial cells were activated and injured by ox-LDL. Inhibition of the cell viability, re-lease of LDH, expression of ICAM-1, phosphorylation of NF-κB p65 , and up-regulated transcriptional activity of NF-κB induced by ox-LDL were attenuated by ATV. Conclusion ATV can significantly inhibit the activa-tion and injury of human microvascular endothelial cells induced by ox-LDL, and that may be related to inhibition of phosphorylation and transcriptional activity of NF-κB.

Aim To investigate the change of molecu-lar expression related to coagulation and fibrinolysis in human microvascular endothelial cells ( HMEC ) in-duced by activated complement alternative pathway and effect of pyrrolidine dithiocarbamate ( PDTC ) and res-veratrol on intervention. Methods Normal human se-rum was activated by cobra venom factor ( CVF) . After exposure of HMEC to activated complement for various times, supernatant was removed and assayed for ex-pressions of P-selectin, VWF, t-PA, PAI-1, TF, TM, and NO by using reagent kits. The expressions of the above molecules in HMEC pretreated with PDTC and resveratrol were also investigated. Results P-selectin and VWF were rapidly released by endothelial cells and the expression reached the peak at the time point of 15 min. The expressions of t-PA, PAI-1, and TF were continuously upregulated, whereas NO and TM were decreased. PDTC and resveratrol inhibited the upregulation of P-selectin, VWF, t-PA, PAI-1 and TF, and intervened the downregulation of NO. Res-veratrol further downregulated the expression of TM. Conclusion Activated complement alternative path-way can influence the expression of molecules related to coagulation and fibrinolysis in HMEC, and PDTC and resveratrol can affect this change.

Objective To evaluate the effect of enteral nutrition support on the nutritional status and clinical outcomes of patiems with dysphagia after stroke.Methods 148 patients with acute stroke and associated dysphagia were enrolled from August 2013 to July 2014 in the Fifth Affiliated Hospital of Zhengzhou University,and randomly divided into 2 groups by drawing lots within 48 hours after admission:enteral nutrition group (n =75,early enteral nutrition support) and control group (n =73,routine diet).The nutritional status (triceps skinfold thickness,levels of serum total protein,albumin and hemoglobin),incidence of lung infection,mortality,and neurological function were compared between the two groups on day 1 and day 21 after admission.Results On day 1 after admission,the triceps skinfold thickness,levels of serum total protein,albumin,and hemoglobin in the enteral nutrition group were not significantly different from those in the control group [(15.4 ±4.1) mm vs.(15.1 ± 3.7) mm,t=1.36,P=0.392; (75.7±2.6) g/Lvs.(76.6±3.1) g/L,t=1.12,P=0.254; (39.2± 1.8) g/Lvs.(38.7±2.1) g/L,t=1.24,P=0.200; (137.4±14.5) g/Lvs.(135.1±15.3) g/L,t=1.01,P =0.461].On day 21 after admission,all the 4 nutrition indicators were significantly higher in the enteral nutrition group than in the control group [(13.5 ±3.9) mmvs.(11.2±4.6) mm,t=2.08,P=0.019; (63.3±4.1) g/Lvs.(57.1±4.7) g/L,t=4.01,P=0.001; (35.7±1.6) g/Lvs.(34.1± 2.0) g/L,t=2.31,P=0.022; (125.7 ±17.9) g/Lvs.(120.3 ±16.7) g/L,t=2.39,P=0.027].The enteral nutrition group showed lower incidence of lung infection,mortality,and reduced scores of American National Institutes of Health Stroke Scale compared with the control group (41.3％ vs.63.2％,x2 =9.69,P =0.002; 15.3％ vs.21.2％,x2=3.27,P=0.014; 11.1 ±4.1 vs.14.7 ±3.9,t=2.98,P=0.007).Conclusions Early enteral nutrition support can improve the nutritional status and outcomes of stroke patients with dysphagia.In addition,early enteral nutrition support may also be helpful for the improvement of the neurological function.

Objective To analyze the training and evaluation standards on urine analyzers in the grass-roots medical unit.Methods The applicability,requirements,subject setup and items of the standards as well as the requirements of evaluation scoring chart were expounded in detail,and the related elementary knowledge was analyzed including the structure,working principle,installation and adjustment,operation,application,maintenance and etc of the analyzer.Combined personnel with the equipment was suggested to ensure the accuracy and high efficiency of the test result.Results The interpretation of the standards contributed to enhancing the quality of medical equipment training and the ability of practical support,and facilitated the examiner to perform annual evaluation with the scoring chart.Conclusion It is necessary to grasp accurately the connotation of the standards,to improve the quality of medical equipment training and to enhance combat support capability for the grass-roots medical unit and examiner.

A novel fibrinogenolytic protease,named atrase A,has been purified from the venom of Naja atra by sequential chromatography.Atrase A is a single chain glycoprotein with a molecular weight of 64.6 kD,an isoelectric point of pH 9.6 and a neutral sugar content of 4.16%.Atrase A specifically and slowly degraded α-chain of fibrinogen.This fibrinogenolytic activity Was inhibited by chelating agents(EDTA,EGTA and 1,10-phenanthroline)and DTY,and partially inhibited by PMSF,but not by soybean trypsin inhibitor,indicating it is a metalloproteinase.Atrase A showed edema-inducing activity and bactericidal activity against Staphylococcusa aureus.Atrase A did not show cytotoxicity on A549 and K562 cells in MTT assay,but detached adherent A549 cells from the substrate.Atrase A did not show significant inhibition of platelet aggregation induced by ADP or collagen,and did not exhibit proteolytic activities towards fibrin,azocasein and BAEE.It also did not show hemorrhage activity when injected subcutaneously into mice.

Objective Many studies have proved that the ABCD 2 score can be used to predict early stroke risk after transient ischemic attack ( TIA) , but few reports are seen on its predictive value for early stroke risk after TIA in different types of circulation . This article aimed to evaluate the ABCD 2 score in predicting early stroke risk following anterior or posterior circulation TIA . Methods Patients with definitely diagnosed TIA consecutively included in Nanjing Stroke Registration System from September 2011 to December 2012 were classified into anterior and posterior circulation TIAs .Various risk factors were collected and a 90-day follow-up was conduc-ted.The ABCD2 score was obtained from each patient and its predictive value assessed using the receiver operating characteristic curve. Results A total of 204 patients were analyzed in the study , including 59 (28.9%) females, 143 with anterior and 61 with posterior circulation TIA, aged 63.7 ±11.2 years.There were no statistically significant differences in the incidence rate of stroke within 90 days between the anterior and posterior circulation TIAs (11.2% vs 9.8%, P=0.776).The mean ABCD2 score was re-markably higher in the anterior than in the posterior circulation TIA (3.7 ±1.5 vs 2.5 ±1.3, P<0.001).The area under the curve (AUC) in predicting stroke risk was 0.711 for the former (95%CI:0.575-0.847, P=0.006) and 0.555 for the latter (0.298-0.820, P=0.637). Conclusion The ABCD2 score can predict early stroke risk in anterior but not in posterior circulation TIA .

Aim To investigate the effect of chlorogen-ic acid,caffeic acid,and ferulic acid on expression of molecules related with inflammatory response of HMECs induced by activated complement alternative pathway.Methods CVF was used to activate the al-ternative pathway of serum complement.After exposure of HMECs to activate complement for various times, supernatant of cell culture was removed and assayed for content of ICAM-1,IL-6,IL-8,t-PA,and PAI-1 u-sing ELISA kits.The expression of the above mole-cules induced by activated complement was measured after HMECs were pre-treated with 50,100,250 μmol ·L-1 of CGA,CA,and FA.Results After HMECs were exposed to the product of the activated comple-ment alternative pathway,the expression of ICAM-1 , IL-6,IL-8,t-PA,and PAI-1 was up-regulated.The expression of ICAM-1,IL-6,IL-8,t-PA,and PAI-1 was down-regulated by various concentrations of CGA, CA,and FA.ICAM-1 and IL-8 were inhibited most significantly in all molecules mentioned above.CA ex-hibited the best intervention effect,followed by FA. Conclusion Certain concentration of CGA,CA,and FA can inhibit the expression of ICAM-1,IL-6,IL-8, t-PA,and PAI-1 in HMECs induced by the activation of the alternative complement pathway,indicating that CGA,CA,and FA can inhibit inflammatory response of HMECs.

OBJECTIVE To study the epidemiology of drug-resistant and antiseptic-resistant genes of(productive)(enzyme) in meticillin-resistant coagulase negative Staphylococcus(MRCNS).METHODS mecA Gene of the(drug-)resistant ?-lactam,aac(6′)/aph(2″) and aph(3′)-Ⅲ genes of aminoglycoside-modifying enzyme(AME) and(ermA/B/C) genes of erythromycin methyltransferase were detected by polymerase chain reaction(PCR) in 40 MRCNS strains.RESULTS From them there were 39 strains with mecA gene,32 strains with aac(6′)/aph(2″) gene,15 strains with aph(3′) -Ⅲ gene,30 strains with ermA/B/C gene,2 strains with tetM and 6 strains with qacA/B gene.There were 26 strains(65.0%) simultaneously with mecA,aac(6′)/aph(2″)and(or) aph(3′)-Ⅲ and ermA/B/C genes in MRCNS.CONCLUSIONS The drug-resistant rate is higher in MRCNS.There are more than half tested strains simultaneously with 3 to 4 drug-resistant genes.

OBJECTIVE To find out the prevalent distribution and multidrug resistance trend of meticillin-resistant Staphylococcus(MRS) and to prevent fulminant prevalence of MRS and opt for effective therapeutic means.METHODS The bacterium was(identified) by the way of API Staph and the TH-16S′s coding tube.The(antimicrobial) susceptibility testing was adoped by ATB-STAPH5 and MRS was examined by dilution and K-B.All statistical analyses were performed using SPLM 3.0 software.RESULTS The isolation rate of meticillin-resistant S.aureus(MRSA) and meticillin-resistant coagulase negative Staphylococcus(MRCNS) was 38.09%,20.00%and 87.65%,89.00%,(respectively) in 2 years.Along with the age of patients,the infection from MRS was(increasing).The isolation rate of MRSA was 28-26%,but that of MRCNS was more than 80% from S.epidermidis,S.haemolyticus,S.hominis,and S.saprophyticus subsp saprophyticus.All parts of our body can be(infected) by MRS.The more than 30% MRSA were multidrug resistant and the approximately 11.87-13.75% MRCNS were also multidrug(resistant).(CONCLUSIONS) The isolation rate of MRSA from national surveillance(network) is not(different) with that of MRCNS.