Objective:To explore therapeutic effect of levosimendan on refractory heart failure (RHF).Methods:A total of 60 patients,who were diagnosed as RHF in our department of cardiology from Sep 2010 to Sep 2014,were selected.Ac- cording to random number table,they were randomly and equally divided into routine treatment group and levosimendan group (received levosimendan based on routine treatment group).Left ventricular ejection fraction (LVEF),plasma level of brain natriuretic peptide (BNP)before and after treatment,6min walking distance (6MWD)on 60d after treatment and total effective rate were compared between two groups.Results:Total effective rate of levosimendan group was significantly higher than that of routine treatment group (90.0% vs.76.7%,P=0.03).Compared with routine treatment group af- ter treatment,there were significant rise in LVEF [(41.53±3.42)% vs.(48.84±3.57)%]and 6MWD [(371.0±69.5) m vs.(467.2±87.3)m],and significant reduction in plasma BNP level [(453±39)pg/ml vs.(199±27)pg/ml]in levo- simendan group,P<0.05 all.Conclusion:Levosimendan possesses significant therapeutic effect on refractory heart failure without severe adverse reaction,which is worth extending.

RNA interference(RNAi),the first method of choice to suppress gene expression in vitro,is a conserved biologic response to double-stranded RNA that resulted in the sequence-specific silencing of target gene expression.Recently,more than 100 literatures reported synthetic small interfering RNAs in mammals.These reports demonstrated that RNAi is also a powerful tool for in vivo research and may become an effective therapeutic tool.This paper reviews the influencing factors and experimental design of in vivo use of RNAi.

Focal adhesion kinase(FAK),a non-receptor protein tyrosine kinase,is siting at the cross road of numerous intra-cellular signal transduction.The activated FAK has been implicated in a diverse array of cellular behavious.Recent research on FAK and fibrosis show that FAK plays an important role in fibrosis disease,so the targeting of FAK may be a novel therapeutic strategy.

Objective To explore the change of 25 hydroxyvitamin D level and its correlation with glucose metabolism and bone mineral density in elderly men with type 2 diabetes mellitus(T2DM).Methods Hospitalized 53 elderly male patients with T2DM (T2DM group) and 51 patients without T2DM (NDM group) were chosen.Blood.biochemical indexes and 25 hydroxyvitamin D level were measured.Bone mineral density of lumbar (L2_4),left proximal femur was measured by dual energy X-ray.Results The serum 25 hydroxyvitamin D level in T2DM group was lower than that in NDM group [(12.38 ±5.12)μg/L vs.(17.35 ± 5.52) μ g/L],and there was significant difference(P＜ 0.05).The serum 25 hydroxyvitamin D level was negatively associated with fasting blood glucose level and glycosylated hemoglobin (r =-0.225,-0.499,P ＜ 0.05).The serum 25 hydroxyvitamin D level was not associated with fasting insulin and homeostasis model insulin resistance index (r =-0.050,-0.082,P ＞ 0.05).The incidence of osteoporosis in T2DM group was higher than that in NDM group [30.19％(16/53) vs.11.76％(6/51)],and there was significant difference (P ＜0.05).The serum 25 hydroxyvitamin D level was positively associated with bone mineral density of femur neck,greater trochanter of femur and Ward triangle(r =0.773,0.762,0.812,P ＜ 0.05).The serum 25 hydroxyvitamin D level was not associated with bone mineral density of lumbar (L2_4)(r =0.116,P ＞ 0.05).Conclusions The prevalence of vitamin D deficiency is found in elderly men with T2DM.Vitamin D level can affect blood glucose control and increase the risk of the occurrence of osteoporosis.Therefore,T2DM patients,especially elderly patients,should be routine vitamin D testing.Vitamin D supplementation to the patients of vitamin D insufficiency in time may be beneficial to glucose metabohsm and the prevention and treatment of osteoporosis.

Intestinal fibrosis is the complications of inflammatory bowel disease (IBD), intestinal myofibro-blast cells are the key to intestinal fibrosis .Intestinal myofibroblasts and its interaction with inflammatory cells play an im-portant role in IBD-related intestinal fibrosis .

Objective To explore the effect of dinoprostone suppositories and oxytocin on cervical maturation and delivery outcome in induction of labor in late pregnancy.Methods A total of 174 pregnant women in the department of obstetrics and gynecology in our hospital for treatment in late pregnancy were chosen.They were randomly divided into two groups: the control group 85 cases and the study group 89 cases.The control group was treated with routine induction of intravenous infusion of oxytocin, and the study group was taken with dinoprostone suppositories.The effective rates of induction of labor and the incidence of adverse reactions after induction of labor induced of the two groups were observed.The clinical effect of patients was with Bishop score to determine cervical maturity.The induction of labor time, natural childbirth rate, cesarean section rate, maternal postpartum hemorrhage and neonatal asphyxia score were as the evaluation criteria of childbirth outcome.Results The cervical maturation level was (7.26 ±1.82) after drug for 24 hours in the study group, significantly higher than that of the control group (6.34 ±1.37) (P<0.05).The induction time, spontaneous delivery rate and cesarean section rate of the study group were (6.34 ±1.37)h, 86.52%, 13.48%, significantly better than those in the control group (P<0.05).The average amount of bleeding in the study group was (225.96 ±12.81) mL and the neonatal asphyxia score was (9.73 ±0.15), the results were lower than the control group (P<0.05).The successful rate of induction of labor in the study group was 96.63%) higher than that in the control group 85.88%.The incidence of side effects in the study group was 10.11%, significantly lower than in the control group 21.18% (P<0.05), which were with statistical significance.Conclusion Dinoprostosterone suppositories have the advantage of promoting cervical ripening for late pregnancy in pregnant women compared with oxytocin.It can shorten induction time and improve natural childbirth rate.And the maternal prognosis is good, can be used as a safe and effective clinical induction.

Integrins are the main mediators of the complicated interaction between hepatic stellate cells (HSCs) and extracellular matrix (ECM) components. Signal transduction by integrins is initiated by both occupancy and crosslinking of integrins by ECM components. Focal adhesion kinase (FAK) and mitogen- activated protein kinase (MAPK), which are the downstream molecules, involve in integrin-mediated cellular behaviors. In this review, we briefly summarize the integrin's structure, intracellular signaling cascades and its role in HSC behaviors,such as activation,proliferation and apoptosis.

Objective To investigate the correlation between NAD(P)H oxidase p22phox C242T polymorphism and carotid atherosclerosis(CA)in Chinese population.Methods 138 patients with CA and 130 control subjects were recruited.C242T polymorphism of p22 phox was analyzed by polymerase chain reaction and restriction fragment length polymorphism(PCR-RFLP)for determination of its genotype. Results The CT genotype frequencies in the CA group and control group were 0.268 and 0.139, respectively,and no TF genotype was found.The CT genotype frequency of the CA group was significantly higher than that of the control group(X2=6.899,P=0.009).It was found that systolic blood pressure, blood glucose,low density lipoprotein cholesterol smoking and the NAD(P)H oxidase p22 phox C242T polymorphism were independent risk factors for CA by Logistic regression analysis.Conclusions The NAD(P)H oxidase p22 phox C242T polymorphism may be a risk factor for CA.

Purpose: There is no appropriate instrument or devices and corresponding technological specification for measurement of output dose and dose disdribution in stereotactic radiothrapy. Small field of the stereotatic radiotherapy can't be measured by normal ionization chamber for its characteristics.A practible instrument and method were developed for dose measurement in stereotactic irradiation.Materials and Methods:A diode detector with 1mm sensitivety volume and a 0.3cc graphite chamber developed by us are used to measure the dose output & dose distribution in warious phantom for the beams used in stereotactic irradiation.Results:The dose outputs and dose ditributions measured by SCD-61 diode developed by us were tested and verified by TLD dosemeter,and the results show tha there is a 5% consistency for the value at the focus point.Conclusion: the diameter of the detector used for measurement must be smaller than the halt size of the radiation beams to be measured. A diode detector with 1mm sensitivity volume is the best choice for the dosimetric measurements for smaller beams used in stereotactic irradiation.

Objective To investigate the prevalence rate of hypertension ,overweight ,obesity and obesity/overweight ,thus to explore the relationship between hypertension and sleeping time .Methods Healthy individuals having physical examinations in Health Management Center of Southwest Hospital were randomly selected to take questionnaire and physical examination ,and then we analyzed the correction relationship of hypertension and sleeping time .Results The prevalence of overweigh ,obesity ,hyperten‐sion and perhypertension was 36 .68% ,11 .36% ,22 .14% and 33 .43% respectively .The prevalence rate of hypertension for men was 2 fold as that of women .There was a negative correlation between hypertension and sleeping time .The prevalence of stage 2 hypertension tended to U.People who sleep time less than 5 h have more risk for Isolated systolic hypertension than who sleeping 6 h .Conclusion There is a high risk of hypertension and stage 2 and stage 3 hypertention for people whose sleep time less than 5 h or more than 10 h .