The effect of early changing stage ischemic size on ventricular fibrillation thresh old(VFT), blood pressure and plasma noradrenaline concentration was observed in 30 rabbits with constant heart rate and excition of vagus in some animals. The result suggests that: VFT can be influenced by changing myocardial ischemic size; but the influence has no relation to heart rate, blood pressure, plasma noradrenaline and vagus. The result points out that the size of early stage myocardial ischemia has relation to the occurrence of ventricular fibrillation.

OBJECTIVE:To compare the efficacy and safety of rosuvastatin and atorvastatin in the treatment of coronary heart disease. METHODS:96 patients with coronary heart disease were randomly divided into observation group and control group. All patients received reasonable diet control,low molecular weight heparin,Aspirin enteric-coated tablet,β-blockers,nitric acid lipids and other conventional treatment,but no vitamins and other antioxidant drugs. Based on it,observation group was orally given 10 mg Rosuvastatin tablet,once a day;control group was given 20 mg Atorvastatin capsule,once a day. The treatment course for both groups was 6 months. Clinical efficacy, total cholesterol (TC), triglyceride (TG), low density lipoprotein cholesterol (LDL-C),high density lipoprotein cholesterol(HDL-C),high-sensitivity C-reactive protein(hs-CRP)and left ventricular ejection fraction (LVEF) before and after treatment,and the incidence of adverse reactions in 2 groups were observed. RESULTS:There were no significant differences in the total effective rate and incidence of adverse reactions between 2 groups(P>0.05). Before treat-ment,there were no significant differences in the TC,TG,LDL-C,HDL-C,hs-CRP and LVEF between 2 groups(P>0.05). After treatment,TC,TG,LDL-C,HDL-C and hs-CRP in 2 groups were significantly lower than before,and TC,LDL-C and hs-CRP in observation group were lower than control group,HDL-C and LVEF in 2 groups were significantly higher than before,and observa-tion group was higher than control group,the differences were statistically significant (P<0.05). CONCLUSIONS:Rosuvastatin and atorvastatin has similar efficacy and safety in the treatment of coronary heart disease,but rosuvastatin is superior to atorvastatin in terms of reducing lipid levels.

OBJECTIVE:To observe clinical efficacy and safety of salmeterol and fluticasone propionate in the treatment of mod-erate and severe bronchial asthma. METHODS:98 patients with moderate and severe bronchial asthma were selected from our hospi-tal were included in the study and were randomly divided into control group(49 cases,3 cases withdrew from the test and 46 cases completed the test)and observation group(49 cases,2 cases withdrew from the test and 47 cases completed the test). Control group was given Budesonide aerosol preparation,1 dose,bid;observation group was given Salmeterol and fluticasone propionate inhala-tion,1 dose,bid. The treatment course lasted for 2 months. Clinical efficacy,lung function indexes,the time of clinical symptom disappearance,FEV1,PD20,ACT score,asthma attack times within half an year,EO%and ECP in serum and sputum,and the oc-currence of ADR were compared between 2 groups. RESULTS:After treatment,total effective rate of observation group was signifi-cantly higher than that of control group(95.73% vs. 76.09%);FVC,FEV1 and PEF and other indexes of 2 groups were increased significantly,and the observation group was significantly higher than the control group;the disappearance time of pulmonary rales, wheezing,dyspnea and cough in observation group were significantly shorter than in control group;PD20 and ACT score of 2 groups were significantly increased,ACT score of observation group was significantly higher than that of control group;EO% and ECP in serum and sputum of observation group were significantly lower than those of control group,there was statistical significance (P<0.05). Asthma attack times within half an year in observation was less than control group,there was no statistical significance (P>0.05). All ADRs disappeared after drug withdrawal. CONCLUSIONS:Therapeutic efficacy of salmeterol and fluticasone propio-nate is better than budesonide in the treatment of moderate and severe bronchial asthma,and can effectively improve lung function, shorten the time of clinical symptoms disapperance and reduce the level of inflammatory factor with and good safety.

AIM:Toinvestigatetheinteractionofpolymorphismsofintercellularadhesionmolecule-1(ICAM-1) gene K469E and monocyte chemoattractant protein-1 (MCP-1) gene -2518A/G in the invasion and metastasis of gas-tric carcinoma .METHODS:Based on TNM classification , 4 500 patients with confirmed gastric carcinoma from the First Affiliated Hospital of Xinxiang Medical University in China from December 2009 to November 2014 were divided into stageⅠ group, stageⅡgroup, stageⅢgroup, stageⅣgroup, and stage 0 group, with 900 cases in each group.No significant difference among the 5 groups in age, gender, ethnicity, birthplace and living habit was observed .The genetic polymor-phisms of ICAM-1 gene K469E and MCP-1 gene -2518A/G were analyzed by the technique of polymorphism-polymerase chain reaction ( PCR) in peripheral blood leukocytes of above-mentioned cases .RESULTS:Statistical tests showed signi-ficant differences in the frequencies of K469E (EE) and -2518A/G (GG) among each group (P<0.01).The risk of the invasion and metastasis of gastric carcinoma significantly increased in subjects with K 469E ( EE) genotype and in those with -2518A/G (GG) genotype.Combined analysis of the polymorphisms showed that distribution frequency of K 469E (EE)/-2518A/G ( GG) in stage Ⅰ group, stage Ⅱ group, stage Ⅲ group, stage Ⅳ group and stage 0 group was 39.22%, 53.22%, 59.22, 65.44%and 12.11%, respectively (P<0.01).The people who carried with K469E (EE)/-2518A/G ( GG) had a high risk of the invasion and metastasis of gastric carcinoma , and statistical analysis suggested a positive interaction in a super-multiplicative model between K469E (EE) and -2518A/G (GG) in increasing the risk of the invasion and metastasis of gastric carcinoma .CONCLUSION: ICAM-1 gene K469E ( EE) and MCP-1 gene-2518A/G ( GG) are the risk factors in the invasion and metastasis of gastric carcinoma , and significant interactions be-tween genetic polymorphisms of K 469E and -2518A/G added the risk of the invasion and metastasis of gastric carcinoma .

AIM:To investigate the interaction of polymorphisms of resistin gene promoter -420C/G, cyto-chromes P4501A1-MspI and cigarette smoking in nonalcoholic fatty liver disease (NAFLD).METHODS: The genetic polymorphisms in resistin gene promoter -420C/G and CYP1A1-MspI were analyzed by the technique of polymerase chain reaction ( PCR) in peripheral blood leukocytes of 900 NAFLD cases and 900 healthy persons.RESULTS:The frequencies of -420C/G (GG) and CYP1A1-MspI (m2/m2) were 49.75%and 50.08%in NAFLD cases and 24.00%and 24.25%in healthy controls, respectively.Statistical tests showed a significant difference in the frequencies between the 2 groups ( P<0.01).The risk of NAFLD with -420C/G (GG) was significantly higher than that of controls.Individuals who carried with CYP1A1-MspI (m2/m2) had a high risk of NAFLD.Combined analysis of the polymorphisms showed that the per-centages of -420C/G (GG)/CYP1A1-MspI (m2/m2) in NAFLD and control groups were 39.83% and 12.83%, re-spectively (P<0.01).The people who carried with -420C/G (GG)/CYP1A1-MspI(m2/m2) had a high risk in NAFLD group.The cigarette smoking rate in NAFLD group was signi-ficantly higher than that in control group ( P<0.01) , and the statistic analysis suggested an interaction between cigarette smoking and -420C/G (GG) and CYP1A1-MspI (m2/m2), which increased the risk of NAFLD.CONCLUSION: -420C/G (GG), CYP1A1-MspI (m2/m2) and cigarette smoking are the risk factors in NAFLD.The interactions between genetic polymorphisms in -420C/G, CYP1A1-MspI ( m2/m2) and cigarette smoking increase the risk of NAFLD.

Objective To analyze the safety of high dose methotrexate (HD-MTX) in the treatment of children with acute lymphoblastic leukemia (ALL) after 36 hours and 42 hours using leucovorin (CF) rescue. Methods A total of 137 childhood with acute lymploblastic leukemia(ALL) in our hospital from September 2012 to December 2015 were analysed in this study, 137 children with ALL were randomly divided into group A (n=69) and group B (n=68) according to the serial number (odd number and odd number). The total number of treatment times was 454 times. Among them, the rescue time of group A was 36 hours, there were 224 cases, and the rescue time of group B was 42 hours, 230 times.The plasma drug concentration, delayed excretion rate, the total dose of leucovorin, the total dose of methotrexate and the incidence of side effects were observed in group A and group B at 24, 48 and 96 hours. Results There was no significant difference in plasma concentration, delay of excretion and incidence of side effects between 2 groups of methotrexate, 24, 48 and 96 hours. The total dose of methotrexate/methotrexate in 2 groups was statistically significant (P＜0.05). Conclusion When the rescue time of leucovorin was 42h, the treatment of acute lymphoblastic leukemia with high-dose methotrexate was the best.

In order to study the relationship between 5-HT and ischemic ventriculararrhythmia we observed the effects of exogenous 5-HT on MAP and ECG of rats withischemic myocardium. The conclusion was that: (1) 5-HT increased the number of VEand prolonged the duration of VT and VF in DVA phase of rats with ischemic myocar-dium. But it could not produced the ventricular arrhythmia on rats without ischemic my-ocardium。(2) The effects of 5-HT mentioned in (1) was attributed to decreased Vmaxand MAPA of ischemic myocardium by 5-HT but it was not due to prolongation ofMAPD.

Cytochrome P450 monoxygenase converts arachionic acid to four epoxyeicosatrienoic acid regiosomes: 5,6-EET(epoxyeicosatrienoic acid);8,9-EET; 11,12-EET and 14,15-EET.Recent studies show that EETs are involved in signal transduction. EETs open Ca 2+ -sensitive K + channel and inhibit Na + channel,Ca 2+ -sensitive Cl - channel and so on. What is more ,EETs have been demonstrated to activate PP60 c-src and initiate a tyrosine kinase cascade that mediates mitogenic effects.

Epoxyeicosatrienoic acids(EETs)are the metabolic products of arachidonic acid(AA). They have the function of stimulating cell division, inhibiting platelet aggregation and regulating the transfer of cell calcium. In recent years, more and more people paid their attention to the effects of EETs on heart. This article will give a review about EETs and the relationship between EETs and heart.

Objective To explore the expression of CTGFmRNA and MDA in rats with alcoholic hepatic fibrosis and intervention of Huangqi injection on them.Methods 45 male SD rats were randomly divided into three groups:a normal group,a model group,and a Huangqi injection group.Alcohol was intragastricly administrated for 16 weeks to induce the model of hepatic fibrosis.At the same time of modeling,The Huangqi injection was injected into tail vein of rats in the Huangqi injection group.The rats were killed after 16 weeks.The histomorphylogic structure of the liver tissues were observed under optical microscope;The levels of MDA in liver tissue were determined by radioimmunoassay,and the expressions of connective tissue growth factor(CTGF)mRNA were measured by reverse transcriptase-polymerase chain reaction(RT-PCR).Results Compared with the model group.the destructions and proliferations of collagen fibers were lightened,fiber cords were loosened and narrowed swelling of liver cells and degeneration were alleviated,infiltrating cells got decreased(P＜0.01)in the treated groups;Compared with the model group,the collagen area,the MDA and CTGFmRNA expression in liver tissue were decreased obviously in Huangqi injection group(P＜0.01).The expression level of MDA and CTGFmRNA was positively correlated with collagen area(R_1=0.571,P＜0.05;R_2=0.558,P＜0.05).Conclusion Huangqi injection can protect liver from chronic damage in rats and obviously decrease hepatic fibrosis,which is closely correlated to its inhibiting the expression of CTGFmRNA in liver tissues and anti-lipid peroxidation.