1.Comparative study of GDNF and methyl prednisolone on intracellular free calcium and containing water capacity after spinal cord injury in rats
Haitao SONG ; Lianshun JIA ; Zheyu CHEN ; Wancheng TIAN ; Cheng HE
Journal of Medical Postgraduates 2001;14(1):3-6
Objectives:To compare the effect of glial cell line-derived neurotrophic factor(GDNF) and methylprednisolone(MP) on intracellular free calcium([Ca2+]i) and capacity of containing water(CCW) after spinal cord injury(SCI). Methods:Forty-two SD rats were divided into four groups: control, GDNF,MP and GDNF+MP.GDNF and MP were supplied through subarachnoid cavity, tail vein and both of the above after T12 segments spinal cord injury by modified Allen crush method. Animals were executed and specimens were collected at 24 h, 72 h and 168 h after SCI.[Ca2+]i and CCW were measured using Fura-2 method. Results:Both [Ca2+]i and CCW of injured spinal cord in GDNF,MP, and GDNF+MP groups were lower than that of the control group at 24 h and 72 h after SCI(P<0.01).Levels of [Ca2+]i and CCW in GDNF group was much higher than that of MP and MP+GDNF groups(P<0.01),but there was no difference between MP group and MP+GDNF group(P>0.05) 24 hours after SCI. Seventy-two hours after SCI,[Ca2+]i in GDNF group was higher than that in MP group, MP group was higher than MP+GDNF group(P<0.05).CCW of GDNF group exceeded that of MP and MP+GDNF group(P<0.01).[Ca2+]i in GDNF group was higher than that in MP group, and MP group was higher than MP+GDNF group(P<0.01) 7 days postoperatively, but for CCW, there were no differences among GDNF,MP and MP+GDNF groups(P>0.05). Conclusions: Both GDNF,MP and GDNF + MP groups might reduce [Ca2+]i and CCW of injured spinal cord. The curative effect of MP for SCI preponderate over that of GDNF, the effect of MP could be enhanced by adding GDNF.
3.Isolation and activity of an α-amylase inhibitor from white kidney beans
Xiaoqi ZHANG ; Mingyan YANG ; Yu MA ; Jia TIAN ; Jirong SONG
Acta Pharmaceutica Sinica 2007;42(12):1282-1287
An α-amylase inhibitor (α-AI) was isolated from white kidney beans (Phaseolus vulgaris. L) by ethanol fractional precipitation, ion exchange chromatography and gel filtration column chromatography. It was a homogeneity glycoprotein demonstrated by SDS-PAGE and gel filtration on CL-6B. The glycoprotein contained 88.2% protein and was rich in aspartic acid, glutamic acid, leucine, threonine and serine. The carbohydrate moiety was consisted of Man, Glc, Gal and Xyl in a mole ratio of 2.42∶1.50∶1.52∶1.00. The glycan and the core protein backbone was connected by O-linkage as determined by β-elimination reaction. The continuous oral administration of the α-AI (150 mg·kg-1·d-1 ) for 7 days can lower fasting blood glucose and 300 mg·kg-1 ·d-1 α-AI for 7 days can improve the sugar tolerance on alloxan-dependent diabetic model rats. The result showed the α-AI obtained from white kidney beans had good hypoglycemic effect on alloxan induced diabetic rats and may have high potential pharmaceutical value as a regulative digestive-starch degradation in patients suffering from diabetes.
4.The characteristic of regional cerebral glucose metabolism in Wilson's disease using 18F-FDG PET
Xiang-song, ZHANG ; Ming, SONG ; Jia-jun, ZHUANG ; Li, LI ; Tian-zi, JIANG ; Xun-hua, LI
Chinese Journal of Nuclear Medicine 2008;28(5):333-335
Objective The aim of this study was to investigate the characteristic of regional cerebral glucose metabolism in patients with Wilson's disease (WD) using 18F-fluorodeoxyglucose (FDG) PET.Methods Thirteen WD patients and 12 normal controls were studied by brain 18F-FDG PET, and the data were analyzed by visual analysis, semi-quantification and statistical parametric mapping (SPM). The radioactivity ratios of lenticular nuclei, caudate, thalamus and cerebellum to cerebral cortex and the ratio of lenticular nuclei to caudate were calculated, respectively. SPSS 11.0 software for statistics was also used to analyze the data. Results In WD patients, radioactivity of lenticular nuclei and candate was significantly decreased compared with controls. The radioactivity ratios of lenticular nuclei and caudate to cerebral cortex in WD patients were both significantly lower than that in normal controls (0.95±0.05 vs 1.26±0.05, t =15, P < 0.05 ; 1.02±0.06 vs 1.17±0.05, t = 8, P < 0.05), and the ratio of lenticular nuclei to caudate in WD patients was significantly higher than that in normal controls (0.93±0.06 vs 1.09±0.06, t =9, P< 0.05). Conclusion As compared with normal controls, patients with WD had significantly decreased glucose utilization in the basal ganglia, especially in the lenticullar nuclei.
5.Analysis of Vancomycin-induced Neutropenia Adverse Reactions/Adverse Events in Children
Huanhuan JI ; Jian LUO ; Lin SONG ; Bo ZHOU ; Xiaoying TIAN ; Yuntao JIA
China Pharmacy 2016;(6):760-762
OBJECTIVE:To provide reference for vancomycin-induced neutropenia adverse reactions/adverse events in clinical diagnosis. METHODS:With a case of children with neutropenia treated by long-course and large-dose vancomycin,PubMed and CNKI were retrieved to collect related literature and the literature was analyzed. RESULTS:Neutropenia may be associated with vancomycin,based on causality criterion of adverse reaction in China. CONCLUSIONS:Vancomycin-induced neutropenia in chil-dren is most likely associated with prolonged exposure induced by infusion,vancomycin dosage should be reduced or stopped,and routine blood and plasma concentration should be closely monitored.
6.Effects of job burnout and work satisfaction on the quality of life about army recruits
Jianjiang ZHANG ; Jimin JIA ; Ning TAO ; Hua TIAN ; Erchen QIU ; Zhixin SONG ; Jiwen LIU
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(1):64-69
Objective To investigate the quality of life of army recruits in their basic military training period,and to analyze the influence of job burnout and work satisfaction on their quality of life.Methods A total of 625 recruits enrolled in 2014 of Xinjiang Army troop were chosen as subjects in this study by stratified cluster random sampling.Quality of life was assessed by Chinese version SF-36(Short-Form Health Survey Scale),job burnout was assessed by Chinese version Maslach Burnout inventory general survey (MBI-GS) and work satisfaction was assessed by Chinese version Minnesota Satisfaction Questionnaire (MSQ).Results The scores of PCS and MCS about 597 recruits were (85.93±12.62) and (81.10±14.12) respectively.According to demographic characteristics,the score of physiological function was lower than that of non-smoking group (t=2.009,P<0.05),the score of role physical was lower than that of non-smoking group (t=2.617,P<0.05),and the score of PCS was lower than that of non-smoking group (t=2.141,P<0.05).As to except reported health transition,there were negative correlations between emotional exhaustion,depersonalization and other SF-36 scales (r=-0.344~-0.661,P<0.01) respectively.There were negative correlations between personal accomplishment and vitality (r=-0.204,P<0.05),role emotional (r=-0.239,P<0.05),mental health (r=-0.289,P<0.05) and MCS (r=-0.276,P<0.05) respectively.Work satisfaction and quality of life was positively correlated (r=0.243~0.635,P<0.01).As to the independent variable,regression analysis showed that emotional exhaustion (β=-4.732,P<0.01),Minnesota external satisfaction (β=0.783,P<0.01) influenced PCS,the difference was statistically significant.Emotional exhaustion(β=-6.534,P<0.01),pre-enlistment place of residence (β=-5.319,P< 0.05),Minnesota external satisfaction (β=0.813,P<0.01)influenced MCS,the difference was statistically significant.Conclusion Job burnout and work satisfaction influence the quality of life about the army recruits,the more job burnout signify the lower quality of life,and its influence on mental health is more significant.The higher work satisfaction signify the higher quality of life.
7.Efficacy of levosimendan on cardiac function of patients with decompensated heart failure
Zhi JIA ; Mu GUO ; Liyuan ZHANG ; Yunqiang ZHANG ; Haiqing LIANG ; Shuguang TIAN ; Yu SONG
Clinical Medicine of China 2014;30(2):113-118
Objective To evaluate the improvement effect of levosimendan by vein injection on short term cardiac function of patients with decompensated heart failure.Methods One hundred and sixty patients admitted due to heart failure were randomly divided into levosimendan group and control group (80 subjects for each group).Patients in control group were given a regular therapy including diuretics,vasodilators (including the recombinant human brain natriuretic peptide),angiotensin converting enzyme inhibitor(ACEI) or angiotensin Ⅱ receptorantagonists(ARB),β blockers,spironolactone and stain.Patients in levosimendan were administered levosimendan for 24 hours plus regular therapy.The improvements of dyspnoea in 9 days and cardiac function classification in 30 days after therapy were assessed.Mortality of 1 month and 3 month in two group were calculated and compared during follow-up.Results The dyspnoea improvement rate was superior than that of control group during 9 days (OR =1.956,95% CI:1.156-3.310,P =0.013).The improvements in the levosimendan group were better than in the control group at 1 st day (OR =2.261,95 % CI:1.280-3.999,P =0.005),at 3rd (OR =2.002,95 % CI:1.111-3.607,P =0.021) and 5th day (OR =1.846,95 % CI:1.009 -3.377,P =0.047).However,there was no significant difference in term of improving dyspnoea between the levosimendan group and the control group at 9th day (P =0.126).Similarly,the improvement of cardiac function classification in the levosimendan group was superior than the control group during 30 days (OR =1.933,95% CI:1.229-3.040,P =0.004).Although no significant difference was seen regarding of improving cardiac function classification between the two groups at 30th day after treatment (P =0.115),the improvements in the levosimendan group were better than in the control group at 3rd (OR =1.986,95% CI:1.195-3.300,P =0.008),5th (OR =2.268,95 % CI:1.329-3.873,P =0.003),9th (OR =2.627,95 % CI:1.419-4.860,P =0.002) and 14th day(OR =2.212,95% CI:1.189-4.112,P =0.012).Moreover,there was a nonsignificant reduction in terms of mortality in levosimendan group during 1-month and 3-month follow-up compared with control group (P > 0.05).Condusion Levosimendan can effectively improve the short-term cardiac function in patients with decompensated heart failure.
8.Short-term clinical efficacy of levosimendan on treating decompensated cardiac insufficiency
Liyuan ZHANG ; Zhi JIA ; Mu GUO ; Yunqiang ZHANG ; Haiqing LIANG ; Shuguang TIAN ; Yu SONG
Clinical Medicine of China 2013;29(12):1233-1237
Objective To investigate the short-term clinical efficacy of levosimendan on treating patients with decompensated cardiac insufficiency.Methods One hundred and twenty patients with heart failure (NYHA Ⅲ-Ⅳ or Killip Ⅲ) were randomly divided into levosimendan group(n =60) and control group(n =60).The patients in levosimendan group were given intravenous levosimendan for 24 hours beside conventional heart failure medications.The patients in control group were given the conventional heart failure medications.The left ventricular ejection fraction (LVEF) was recorded and B-type natriuretic peptide (BNP) were measured before and after treatment.NYHA grade and mortality also were recorded.All patients were followed up for 3 months.Results The LVEF in the levosimendan group after the treatment was (35.6 ± 13.3)%,significantly higher than that in the control group ((31.4 ± 6.7) %,F =8.952,P =0.002).The BNP in two groups after treatment were lower compared with before treatment(P <0.05).And it was more remarkable after treatment in levosimendan group compared with control group (441.0 (212.5,1050.0) ng/L vs.870.0 (435.0,1267.0) ng/L,P =0.014).The change of NYHA grade in levosimendan group was better than that in control group after 5 d.The recovery rate and ineffective or deterioration rate in levosimendan group were 45.0% (27/60),26.7% (16/30) and 43.3% (26/60) respectively,higher than that of control group (28.3% (17/60),20.0% (12/60),36.7% (22/60)) (OR =2.280,95% CI 1.163-4.468,P =0.016).There was no significant difference in term of mortality between in hospital and 3 months follow-up in the levosimendan and the control group (20% (12/60) vs.25% (15/60),28.3% (17/30) vs.41.7% (25/60),x2 =1.543,P =0.214 and x2 =2.590,P =0.108).There was a decreasing trend regarding of readmission rate during 3 months in levosimendan group compared with that of the control group (21.7% (13/60) vs.33.3% (20/60),x2 =3.591,P =0.058),but mortality or readmission rate was lower than that in the control group (46.7 % (28/60)vs.66.7% (40/60),x2 =4.835,P =0.028).Conclusion The short-term clinical efficacy of levosimendan on treating patients with decompensated cardiac insufficiency is remarkable better than the traditional treatment.
9.Efficacy of levosimendan vs.milrinone in decompensated heart failure patients
Zhi JIA ; Mu GUO ; Liyuan ZHANG ; Yunqiang ZHANG ; Haiqing LIANG ; Shuguang TIAN ; Yu SONG
Chinese Journal of Emergency Medicine 2014;23(7):740-745
Objective To evaluate the short-term clinical efficacy and safety of administration of levosimendan or milrinone added to conventional therapy in patients with decompensated heart failure.Methods A total of 180 patients admitted due to heart failure [NYHA (New York Heart Association) class Ⅲ or Ⅳ] were randomly (random number) divided into control group,milrinone group and levosimendan group (n =60,each group).A continuous infusion of milrinone added to conventional therapy was administered for 72 hours in milrinone group,while administration of levosimendan for 24 hours in levosimendan group.The changes in left ventricular ejection fraction (LVEF),left ventricle end-diastolic diameter (LVDD) and B-type natriuretic peptide (BNP) plasma level were compared between before and after treatment,respectively,and comparisons of improvement in cardiac function (NYHA class) and hospital mortality were carried out among three groups.Patients were further followed up at 3 months after treatment.Results The LVEF in levosimendan group after treatment had significantly more increased than that in control group [(32.0±6.3)% vs.(30.6 ±5.5)%,P =0.007].Compared BNP before treatment,the sums of BNP deducted were 444.0 (-74.0,1068.0) pg/mL,469.0 (141.5,1151.5) pg/mL and 936.5 (437.8,1566.8) pg/mL in control group,milrinone group and levosimendan group,respectively after treatment (all P < 0.01).Moreover,the deduction in BNP was more dramatic in levosimendan group compared with control or milrinone group (t =3.256 or 2.665,P =0.004 or 0.026).After treatment for 5 days,the probability at least of achieving more effectively better improvement in NYHA class (cardiac function) in levosimendan group was 2.036 times that of control group (95% CI:1.030-4.028,P =0.041).The incidence of combined end point events (death or readmission) in levosimendan group was significantly lower than that in milrinone group (50% vs.70%,HR =0.573,95% CI:0.358-0.917,P=0.020),while in hospital mortality,readmission or 3-month mortality incidence was similar among 3 groups (P > 0.05).Conclusions The short-term clinical efficacy of levosimendan is superior to that of milrinone or conventional therapy in patients with decompensated heart failure.
10.Assessment of left ventricular function in patients with mitral valve replacement by quantitative tissue velocity imaging
Guixia ZHENG ; Hongli HAN ; Yiling JIA ; Yanbin XIA ; Song WU ; Jiawei TIAN
Chinese Journal of Ultrasonography 2011;20(6):466-470
Objective To evaluate the clinical value of quantitative tissue velocity imaging (QTVI) in assessing left ventricular(LV) global and regional myocardial function in patients with mitral valve replacement(MVR).Methods Eighty patients having their implantations for more than six months were examined by echocardiography.QTVI-derived parameters such as peak systolic velocity(Sa,Sm) and early diastolic velocity(Ea,Em) of mitral annulus and LV wall were measured from the apical four-chamber,two-chamber and long axis corresponding myocardial segments in MVR groups decreased and LV ejection fraction but negative correlation between Ea' and isovolumic relaxation time(IVRT') in patients(P<0.01).Conclusions QTVI plays an important role in determining LV function of patients after MVR accurately.