Tho effects of native isosorbide mononitrate ( ISMN ) on the hemodynamics in rats with early myocardial infarction by left coronary artery occlusion were investigated. LVSP and dP/dtMAX were increased, and LVEDP was decreased with ISMN 5mg/kg i.v. 20 min after coronary occlusion. However, ISMN did not significantly effect the HR, SAP, DAP and MAP. The results showed that ISMN can improve cardial function in early myocardial infarction.

Objective To evaluate the effects of recombinant human growth hormone(r- hGH)replacement therapy on glucose metabolism in children with growth hormone deficiency(GHD) Methods Replacement therapy with domestic r - hGH was done in 15 children with GHD for 3 months. Oral glucose tolerance test (OGTT) and insulin .releasing test (IRT) were performed before and after 3 months of r-hGH replacement therapy. Venous blood was sampled before and 30,60,120 min after glucose load for measurements of plasma glucose (PG) and insulin (INS).Results OGTT were normal in 15 patients before treatment. After 3 months of r-hGH therapy, fasting plasma glucose remained unchanged, but PG 30 min(P

Objective To study the effects of As_2O_3 on tumor model of hepatocarcinoma.Methods HepAgrafed hepatocarcinoma mouse model was established by subcutaneously injection of mouse hepatoma cells(1×10~6)into the oxter of mice.After treated by As_2O_3,the volume change of tumor and tumor inhibition rates were observed.The expression of vascular endothelial growth factor(VEGF) was detected by immunohistochemical and calculated the difference of MVD.Results The volume of tumor and the tumor inhibition rates were significantly decreased in As_2O_3 group compared with control group(P<0.05).The As_2O_3 could inhibit angiogenesis of xenograft tumor,depress expression of VEGF and decrease microvascular density(MVD).Conclusion As_2O_3 can inhibit the growth of tumor,inhibit the expression of VEGF and decrease MVD.

Intervertebral disc degeneration is considered as a primary cause of clinical low back pain, however the molecular mechanism is not clear yet. Recently, researches on the molecular basis of intervertebral disc degeneration have become a hotspot. The special structure and biomechanics properties of the disc contribute to its propensity toward degeneration. Intervertebral disc degeneration is associated with the changes of the cytological behavior,including the increase in cell death and the degradation of extracellular matrix. However, the mechanism of cell death including cell apoptosis and autophagy in intervertebral disc degeneration remains unclear. Further study on the molecular mechanism of intervertebral disc degeneration is the foundation of improving and treating the intervertebral disc degeneration in the future. Although some progresses are made in the aspect of biological study, the biological environment of intervertebral disc itself is still a challenge for the development of biological treatment. This article is to review the latest advance on the biological characteristics of normal intervertebral disc and the cell death in the process of the intervertebral disc degeneration.
Animals ; Apoptosis ; Cell Death ; Extracellular Matrix ; metabolism ; Humans ; Intervertebral Disc ; cytology ; metabolism ; Intervertebral Disc Degeneration ; metabolism ; physiopathology

Rhubarb is a traditional Chinese medicines which possess laxative, lipid-lowering, and weight-loss activities, but the active compounds of lipid-lowering and underlying molecular mechanisms are not yet clear. This study aims to explore the effects of chrysophanol on the mRNA expressions of sterol regulatory element-binding proteins (SREBPs) and lipid metabolism in human liver carcinoma Huh-7 cells, which is one of the active compounds obtained from Rhubarb. A reporter gene assay was used to test the transcription of SREBP. The intracellular triglyceride and total cholesterol contents were measured by using commercially available test kits. The SREBPs target genes expressions were measured by Quantitative Real-Time PCR. Cell viability was evaluated by Cell Counting Kit-8. As the results shown, chrysophanol (40 μmol · L(-1), 16 h) could notably inhibited human SRE promoter activity in a dose-dependent manner and decrease intracellular cholesterol and triglyceride levels. Furthermore, the mRNA expressions of SREBPs target genes were significantly downregulated by chrysophanol treatment. However there are no significant differences on cell viability when compared with the control group. These results suggested that chrysophanol might improve lipid metabolism through suppressing the mRNA expressions of SREBPs target genes to attenuate intracellular lipid accumulation.
Anthraquinones ; pharmacology ; CCAAT-Enhancer-Binding Proteins ; Cell Line, Tumor ; drug effects ; Cholesterol ; analysis ; Down-Regulation ; Gene Expression ; Genes, Reporter ; Humans ; Lipid Metabolism ; drug effects ; Promoter Regions, Genetic ; Sterol Regulatory Element Binding Proteins ; pharmacology ; Triglycerides ; analysis

Objective To observe the influence of congenital heart disease(atrial septal defect,ASD)to intervene closure on the right structure of children(<1 5 years)and adults(1 5-65 years)and to make the safety assessment.Methods Totally 1 1 1 un-derwent interventional treatment of complications in patients with ASD in our hospital from 2010 to 2013 were retrospective ana-lyzed.Closure on changing of right heart structure of child and adult were measured by ultrasonic cardiogram.Closure falls off,shut valve insufficiency,arrhythmia,residual shunt were recorded by ultrasonic cardiogram and electrocardiogram.making statistical a-nalysis.Results The inner diameter of the right atrium(RAD),right ventricle diameter(RVD),pulmonary artery diameter(PA) and right ventricular outflow tract(RVOT)were decreased compared with pre-operation(P < 0.05 ),during the follow-up 1,3,6 month,they was continue decreased in the aged between1 5-65 group(P <0.05),but was stable in less than 1 5 years old age group (P >0.05 ).The complication rate of children and adults were 25.0% and 21.3% respectively,and there were no significantly difference(P >0.05),and was no serious complications.Conclusion Congenital heart disease intervention of atria septal defects can improve heart right structure,which can benefit both children and adult,there is no difference in complication rates.All of these have less serious complications,high safety,curative effect affirmation.

Objective To investigate the effects of dilute concentration and acting time of pronase on quality of gastroscopy.Methods A total of 448 patients were randomly divided into two groups : sodium bicarbonate group and pronase with sodium bicarbonate group.Pronase was diluted into 50 ml (400 U/ml)and 100 ml (200 U/ml) using sodium bicarbonate.The patients were pretreated by pronase of different concentrations 10 min, 20 min, 30 min, 60 min and 120 min before gastroscopy.Diluent of same quantity were taken by the control group.Visibility of gastroscopy, procedure times and positive rates of lesions were compared.Results Pretreatment of pronase significantly improved visibility of gastroscopy, raised positive rates of lesions, and reduced procedure times of gastroscopy, compared with the control group (each P ＜ 0.05).The visibility of gastroscopy were over 80％ 20,30, and 60 minutes before the examination with no significant difference(P ＞ 0.05).The visibility of gastroscopy decreased sharply 30 minutes after taking pronase, especially after 60 minutes.There was no significant difference in the quality of gastroscopy between the 200 U/ml and 400 U/ml group 20-60 minutes before gastroscopy (P =0.640).Conclusion Pronase (200 U/ml-400 U/ml) significantly improves visibility of gastroscopy, raises positive detection rates of lesions, and reduces procedure time of gastroscopy 20-60 minutes before pretreatment.

Objective To investigate vitamin K3 (VK3) effect on apoptosis of human liver cancer cells and its mechanism. Methods The SMMC-7721 cells were cultured in the experiment. The inhibitory effects of VK3 on SMMC-7721 cells were tested by CCK-8. Morphological evaluation of apoptosis was performed by Hcechst33342 staining. The distribution of cell cycle and apoptosis, and the expression of Fas were assayed by flow cytometry. Fas mRNA expression were detected by RT-PCR. And the concentration of soluble Fas(sFasL) in the culture supernatant were measured by EIJSA. Results The inhibitory rates ofVK3 (at concentrations of 2,5,10,20,25 umol/L for 48 h) on SMMC-7721 growth were 33.8% ,50.1%,63.9% ,78.5% and 84.7%, respectively. Compared with the control group, the number of cells in the G0/G1 phase increased, while that of S phase decreased. The apoptotic cell rates were 18.75%, 25.80%,38.80% ,29.92% and 26.18% ,respectively. The apoptosis cells were strongly stained by Hcechst33342.On exposure to VK3 at the concentration of (2,5,10 umol/L) after 48 h, the mean fluorescence intensity ofFas on cell surface and the expression of fas mRNA and the concentration of FasL in the culture supematantin SMMC-7721 were increased, but they all decreased at the high concentration of VK3. Conclusion VK3can inhibit the proliferation of SMMC-7721 cells and induce apoptosis via up-regulating expression of Fas and sFasL.

OBJECTIVETo study the value of basal serum gonadotropin levels in the diagnosis of precocious puberty (PP) in girls.

METHODSA total of 77 girls with PP were divided into central PP (CPP) (n=45) and isolated premature thelarche (IPT) groups (n=32) based on the results of gonadotropin releasing hormone (GnRH) stimulation test, which was considered the gold standard for diagnosis of PP. The two groups were compared with respect to basal serum luteinizing hormone (LH) and follicle-stimulating hormone (FSH) levels and LH/FSH ratio. The receiver operating characteristic (ROC) curve was used to analyze the accuracy of basal LH and FSH levels and LH/FSH ratio in the diagnosis of PP.

RESULTSThe basal serum LH and FSH levels and LH/FSH ratio in the CPP group were significantly higher than in the IPT group (P<0.01). The basal serum LH level was positively correlated with peak LH level in the GnRH stimulation test in both groups. For diagnosis of CPP, the area under the ROC curve (AUC) for basal serum LH level was larger than for basal serum FSH level and LH/FSH ratio (P<0.05), and there was no significant difference in the AUC value between basal serum FSH level and LH/FSH ratio. When the basal serum LH level was 0.62 IU/L, there was a maximum Youden index (0.684), with 77.8% sensitivity and 90.6% specificity. When the basal serum LH level reached 1.5 IU/L, the sensitivity decreased to 31.1%, but with the highest specificity (100%).

CONCLUSIONSBasal serum LH level is superior to LH/FSH ratio and basal serum FSH level in the diagnosis of CPP, and can be used for preliminary diagnosis of PP in girls in the out-patient department, but there is some misdiagnosis and missed diagnosis. When basal serum LH level is higher than 1.5 IU/L the diagnosis of CPP can be confirmed in combination with clinical manifestation, without the need for an additional GnRH stimulation test.

Child ; Child, Preschool ; Female ; Follicle Stimulating Hormone ; blood ; Humans ; Luteinizing Hormone ; blood ; Puberty, Precocious ; blood ; diagnosis ; ROC Curve

The paper discusses the feasibility and urgency of building the military syndromic surveillance system ( SSS) against biological threats in China .Based on the external environment and necessary conditions for our military SSS , the study proposeds a strategic construction plan for implementing our military biodefense SSS , involving the function objectives and performance indexes , system principles and framework , functional modules , syndromic classification and task flow analysis.