3 ?g/well.All BALB/c mice immunized with pJME by im.and gene gun injection,and JE inactivated vaccines by ip.injection survived for 21 days.BALB/c mice immunized with pJE by im.injection and gene gun injection partially survived for 21 days.Titres of neutralization antibody produced with pJME were higher than pJE.Protective immunity and titre of neutralization antibody produced by im injection was the same as gene gun injection(im/gene gun injection: 1∶320/1∶320) at day 21.The antibody from BALB/c mice sera after twice pJME immunization only reacts with JEV-E protein. Conclusions Expression efficacy of proteins encoded by pJME and pJE in transfected cells is different.Expression level of related proteins was dependant on recombinant amount for transfection in a certain degree.Immunity effect induced with pJME was higher than pJE.The efficacy of DNA immunization produced by gene gun injection was higher than im.injection.Titres of neutralization antibody induced by DNA immunization were correlated to efficacy of protective immunity.Neutralization antibody from BALB/c mice sera produced by pJME immunization contained anti-E antibody against JEV-E protein.

OBJECTIVE:To observe the clinical efficacy and safety of Shenmai injection combined with Trimetazidinee tablet in the treatment of hypothyroid heart disease. METHODS:64 patients with hypothyroid heart disease were randomly divided into control group and observation group. Patients in 2 groups were conventional treatment. Based on the treatment,control group was treated with Trimetazidine tablets 20 mg,orally,3 times a day;based on the treatment in control group,observation group was ad-ditionally treated with Shenmai injection 40 ml by intravenous infusion,once a day. The treatment course was 2 months. The clinic data was observed,including clinical efficacy,and T3,T4,TSH,LVEF,LVEDD and LVESD before and after treatment,pericar-dial effusion depth and incidence of adverse reactions. RESULTS:The total effective rate in observation group was significantly higher than control group(P<0.05). After treatment,T3 and T4 in 2 groups were significantly higher than before,TSH and LVESD were significantly lower than before(P<0.05),however,the difference was not statistically significant between 2 groups (P>0.05);LVEF in 2 groups was significantly higher than before,observation group was higher than control group,LVEDD and pericardial effusion depth were significantly lower than before,observation group was lower than control group(P<0.05). There were no obrious adverse reactions during treatment. CONCLUSIONS:Based on the conventional treatment,Shenmai injection com-bined with trimetazidinee has better efficacy than only trimetazidinee in the treatment of hypothyroid heart disease,with similar safety.

Objective To test the hypothesis that perceived organizational support(POS) plays a moderate role in the process of personality' s effect on emotional exhaustion.Methods Using POS,Revised NEO Personality Inventory and Emotional Exhaustion Inventory,376 special combat soldiers were tested from the Chinese Armed Police Force.Then SPSS 16.0 was used to conduct descriptive analysis,correlational analysis and hierarchical regression analysis.Results The interaction of neuroticism and POS as well as the interaction of conscientiousness and POS were significant or marginally significant,respectively.POS significantly moderated the relationship between neuroticism and emotional exhaustion(β=-0.19,t=-2.82,P＜0.01)as well as the relationship between conscientiousness and emotional exhaustion(β=-0.12,t=-1.95,P=0.052).Conclusion Neuroticism and conscientiousness are more strongly related with emotional exhaustion among individuals with low POS than high POS.

Objective To observe the antioxidative capability and the mRNA expression of sodium pump αl-subunit in kidney of hypothyroid rats by iodine deficiency and illuminate the pathogenesis of kidney damage.Methods Wistar rats were randomly divided into two groups as control group (NT) and hypothyroid group (HT).The rats were all fed with low-iodine diet derived from an endemic goiter area and drank deionized water containing different potassium iodide to duplicate hypothyriod animal models.We determined the morphometric parameters of kidney by routine histology method.The contents of malondialdehyde and free radical scavengers (GSH-PX and SOD) in kid-ney,as well as the activity of Na~+-K~+ ATPase were measured in two groups.The mRNA expression of sodium pump α1 subunit was determined by reverse transcription-polymerase chain reaction.Results Compared with that in the control group,in hypothyroid group (1) serum free T3,free T4,total T3 and total T4 were markedly lower.(2) mean glomerular area and volum diminished markedly.(3)the content of MDA and activity of PGx increased markedly,but the activity of SOD decreased significantly,as well as the one of Na~+-K~+-ATPase.(4)the mRNA expression level of sodium pump α1 subunit was lower.Conclusion In a hypothyroid state,the decrease of antiox-idative capability of kidney resulted in lipid peroxidative damage,atrophy of kidney,decreased activity of Na~+-K~+ -ATPase and degression of sodium pump α1 subunit mRNA expression.

Objective To build a Monte Carlo dose verification tool for IMRT Plan by implanting an irradiation source model into DPM code and to extend the ability of DPM to calculate any incident angles and irregular-inhomogeneous fields.Methods The virtual source and the energy spectrum unfolded from the accelerator measurement data were used,in combination with optimized intensity maps,to calculate the dose distribution of the irradiation irregular-inhomogeneous field.The irradiation source model of accelerator was substituted by a grid-based surface source.The contour and the intensity distribution of the surface source were optimized by IMRT.The dose calculation was realized by combining the position of the emitter with the fluence map from the IMRT plan.The weight of the emitter was decided by the grid intensity.The direction of the emitter was decided by the combination of the virtual source and the emitting position.The weighted fraction of the emitter was also combined with the flux grid intensity based on the particle transport model of DPM code.Results The accuracy of calculation was verified by comparing with the measured data.It was illustrated that the differences were acceptable (＜ 2％ inside the field,2-3 mm in the penumbra).The dose calculation of irregular field by DPM simulation was also compared with that of FSPB (Finite Size Pencil Beam).The passing rate of gamma analysis was 95.1％ for peripheral lung cancer.The regular field and the irregular rotational field were all within permissible range of error.The calculation time of regular fields were less than 2 h,and that of the test of peripheral lung cancer was 160 min.Conclusions The adapted DPM code with its simple irradiation source model is faster than that with classical Monte Carlo procedure.Its computational accuracy and speed satisfy the clinical requiremcnt,and it can be useful as a Monte Carlo dose verification tool for IMRT Plan.

Objective To observe the association between homocysteine (Hcy)level and low limb vascular disease(LLVD) in newly-diagnosed type 2 diabetic patients. Methods The study subjects were divided into three groups : control group (NC), newly-diagnosed type 2 diabetes group without peripheral artery disease (T2DM) and peripheral artery disease with newly-diagnosed type 2 diabetes group (T2DM+LLVD).Both Hcy and the ankle-brachial index(ABI) were measured in three groups. Results Compared with NC group, clinical parameters of body mass index,waist-to-hip ratio,systolic blood pressure, total cholesterol(TC),triglycerides(TG),low density lipoprotein-cholesterol(LDL-C),and glycated hemoglobin A1C (HbA1c) increased markedly,and the content of high density lipoprotein-cholesterol (HDL-C) was markedly lower in both T2DM and T2DM+LLVD groups.In T2DM+LLVD group the contents of Hcy,LDL-C and HbA1c were markedly higher than in T2DM group,but the content of HDL-C decreased significantly.Hcy was independently associated with the development of peripheral artery disease in newly-diagnosed type 2 diabetic patients by logisitic regression analysis. Conclusions Increased Hcy is an independent risk factor for peripheral artery disease in newly-diagnosed type 2 diabetes.

The antioxidative capability and Na+-K+-ATPase α1-subunit mRNA expression in myocardium of hypothyroid rats induced by low-iodine diet were observed. The results showed that the antioxidative capability of myocardium decreased, resulting in lipid peroxidative damage, atrophy of myocardial cells and chondrification of tunica intima, along with decreased expression of sodium pump α1 subunit mRNA in hypothyroid rats.