1.Effect of combination of ACEI and ARB on left ventricle in pressure-overloaded hypertrophy rats
Chinese Journal of Clinical Pharmacology and Therapeutics 2004;0(10):-
AIM:To explore the effect of the combination of ACEI and ARB on left ventricle in pressure-overloaded hypertrophy rats, and also the relationship between left ventricular hypertrophy (LVH) and cytokines, matrix metalloproteinases, apoptosis, and apoptosis genes. METHODS: IL-6, IL-10, MMP-2 and MMP-9 were evaluated by ELISA method. TNF-alpha was measured with radioimmunoassays. Flow cytometer was used to measure the apoptosis ratio and the expression of Fas, Bcl-2 and Bax. RESULTS: 6 weeks after abdominal aortic coarctation operation, the weight of the left ventricle ( 0.983 ? 0.316 g ) and heart weight/body weight ( 0.382 ? 0.154 ) were significantly increased in control group compared with the sham operated group. And also IL-6 ( 208.71 ? 84.51 pg?ml -1 ), TNF-? ( 1.983 ? 0.842 ng?ml -1 ), MMP-2 ( 74.63 ? 37.62 ), MMP-9 ( 57.74 ? 25.61 ), apoptosis ratio ( 8.47 ? 4.18 ) and apoptosis genes (fas, bax, bcl-2, bcl-2/bax) expression were increased, but IL-10 ( 86.23 ? 40.13 pg?ml -1 ) was decreased compared with sham operated group. The 3 groups with drugs (CP, LT, CP+LT) decreased the increasing weight of LV and ventricular weight/body weight and inhibited the changes of influencing factors (IL-6, IL-10, TNF-?, MMP-2, MMP-9, apoptosis ratio and apoptosis genes expression), especially in the group of combination of 2 drugs. CONCLUSION: LVH might be related with many influencing factors. ACEI and ARB may have the positive importance in the treatment and prevention of LVH.
2.Signal transduction mechanism of phospholipase C?1 in colorectal cancer cells
Xiumei LI ; Liang HUA ; Shenqiu LUO
Medical Journal of Chinese People's Liberation Army 2001;0(12):-
Objective To investigate signal transduction mechanism of phospholipase C?1 (PLC?1) in colorectal cancer cells. Methods Gel electrophoresis mobility shift assay (EMSA), immunocytochemistry, zymography and RT-PCR were performed to investigate the function of PLC?1 on nuclear factor-Kappa B (NF-?B), matrix metalloproteinase-2 (MMP-2) and tissue inhibitor of metalloproteinase-2 (TIMP-2) in LoVo cell. Results Compared with control group, nuclear positive rate of cells treated with epidermal growth factor (EGF) increased significantly (from 26.91%?2.84% to 40.83%?4.36%), while that of cells treated with 2.5mol/L U73122 decreased to 12.20%?1.89%. Meanwhile, pretreatment with 2.5mol/L U73122 before EGF treatment decreased nuclear positive rate of cells from 40.83%?4.36% to 18.21%?1.34%. The results of EMSA further verified that PLC?1 can regulate the activity of NF-?B. RT-PCR results showed that EGF, PLC?1 or NF-?B had no significant effect on the expression of MMP-2, TIMP-2 at mRNA level. Furthermore, zymography indicated that the activity of MMP-2 did not change dramatically by EGF, PLC?1 or NF-?B. Conclusion These data suggested that EGF-PLC?1-NF-?B signaling pathway was operative in LoVo cell, but MMP-2 and TIMP-2 may not be regulated by EGFR-PLC?1-NF-?B signaling pathway.
3.Meta-analysis of the Efficacy and Safety of Glipizide versus Repaglinide in Treatment of Type 2 Diabetes
Sha LI ; Fang WANG ; Xiumei FANG ; Liang TANG ; Xiaoyan WANG
China Pharmacy 2015;(18):2517-2520
OBJECTIVE:To systematically review the efficacy and safety of glipiaide versus repaglinide in treatment of type 2 diabetes and provide evidence-based reference for the clinical treatment. METHODS:PubMed,EMBase,Medline,Cochrane Li-brary,CJFD,VIP and WanFang database were retrieved to collect the randomized controlled trials(RCT)of the efficacy and safety of glipizide(test group)versus repaglinide(control group)in the treatment of type 2 diabetes. After the quality evaluation and in-formation collection of clinical studies with inclusion criteria,Rev Man 5.2 software was conducted for Meta-analysis. RESULTS:There were totally 10 RCTs,involving 1 022 patients. Meta-analysis results showed that the HbA1c levels [MD=0.43,95%CI (0.20,0.65),P<0.001],2 h postprandial plasma glucose levels [MD=0.49,95% CI(0.04,0.94),P=0.03] and hypoglycemia inci-dence [OR=2.99,95%CI(1.83,4.88),P<0.001] in test group were significantly higher than control group. There was no signifi-cant difference in the fasting plasma glucose level in 2 groups[MD=-0.14,95%CI(-0.44,0.16),P=0.35]. CONCLUSIONS:Re-paglinide has better efficacy and safety than glipizide in the treatment of type 2 diabetes. Limited by the methodological quality and sample amount of included studies,it remains to be verified by RCT with large sample,strict design and long-term follow-up.
4.Effect of WeChat on nutrition instructions to women of advanced maternal age with gestational diabetes mellitus
Xiaoying HUANG ; Qiucheng YANG ; Zhao XU ; Xiumei LIANG
Modern Clinical Nursing 2016;15(4):51-54
Objective To investigate the effect of WeChat on nutrition instructions to women of advanced maternal age with gestational diabetes mellitus (GDM). Methods Eighty women of advanced maternal age with GDM in our hospital during January to December 2014 were divided according to their registration nubmer into two group in eqaul number: those with even number in the observation group and those with odd number in the control group. Those in the control group took part in the health educaiton lectures by the parturient school and those in the observation group were instructed on the WeChat besides education from the school. The two groups were compared in terms of blood glucose control and delivery outcomes. Result The level of blood glucose in the observation group was significantly lower than that of the control group (P<0.05) and the rates for cesarean delivery and vaginal birth were significantly lower and the rate of spontaneous labor was significantly higher than those of the control group (P>0.05). Conclusion Wechat is effective in providing the women of advanced maternal age with nutrition instructions and beneficial for the control of blood glucose level and the decrease of cesarean delivery and vaginal birth rates.
6.Subjective well-being simplify scale in college students:development, reliability and validity
Shijun GU ; Xianghua ZHU ; Xiumei XUE ; Guangli LIANG ; Juan QIAO
Chinese Journal of Behavioral Medicine and Brain Science 2013;22(8):761-763
Objective To develop subjective well-being simplify scale (SWBSS),and examine its reliability and validity.Methods A self-report SWBSS containing 13 items was developed on college student and research literature.2374 college students completed SWBSS,Index of Well-Being(IWB),World Health of Organization Quality of Life Brief Scale (WHOQOL-BREF),Beck Depression Rating Scale (BDI) and Self-rating Anxiety Scale(SAS).Results ①Exploratory factor analysis results showed that SWBSS had 1 factor,and accounted for 41.768% of variance.②Confirmatory factor analysis results indicated that x2/df =2.208,RMR =0.016,RMSEA =0.032 ; GFI =0.986,AGFI =0.974,NFI =0.978,RFI =0.966,IFI =0.988,TLI =0.981,CFI =0.988 ; PGFI =0.552,PNFI =0.639,PCFI =0.646 ; construct reliability =0.901.③The Cronbach'α coefficient,split-half reliability,stability coefficient of SWBSS was 0.876,0.817 and 0.740 (P < 0.01).The SWBSS scores was significantly correlated with the scores of IWB,WHOQOL-BREF,BDI and SAS (r =0.706 ~ 0.892,r =-0.650 ~-0.580,P<0.01).Conclusion The stability,internal consistency,and validity of the SWBSS are good and meet with psychometric standard.
7.Study on antibiotic resistance of Neisseria gonorrhoeae in Nanning for 5 years
Bangyong ZHU ; Xiumei ZHAO ; Shanlie QIN ; Shiyuan LI ; Quan GAN ; Yuejin LIANG
Chinese Journal of Laboratory Medicine 2003;0(10):-
Objective To study the antibiotic resistance of Neisseria gonorrhoeae and the prevalence of penicillinase-producing Neisseria gonorrhoeae (PPNG) and high-level tetracycline resistant Neisseria gonorrhoeae (TRNG) in Nanning. Methods Minimum inhibitory concentrations (MIC) were determined by agar dilution method and ?-lactamase production was comfirmed by acidometric method.Results Among 458 strains, 33 strains(7.20%) were found to be PPNG and 231 strains(50.44%) were TRNG. The resistance rate to ciprofloxacin, ceftriaxone and spectinomycin were 87.33%, 1.31% and 0.22% respectively. Conclusion The situation of resistance to ciprofloxacin was very serious, and it was also found that a few of gonococcal isolates were resistant to ceftriaxone and spectinomycin. The study showed that it is important to successively survey the antibiotic resistance of Neisseria gonorrhoeae.
8.The Application of Real Time Three-Dimensional CT in Detection of SupraclavicularRegion Lymph node Metastasis of Esophageal Cancer
Jianying LIANG ; Xing GUO ; Xuepeng LI ; Xiumei CHENG ; Zhigang FENG ; Yaozhong GUO
Journal of Practical Radiology 2000;0(12):-
Objective To discuss real time three-dimensional reconstruction techniques of spiral CT in the detection of tracheoesophageal groove lymph node metastasis and its diagnostic value.Methods Spiral CT RT3D reconstruction of the supraclaviculrar region were applied to 45 patients with scanning and post-processing on the workstation.Mediastinum,color in chest,clip planes 3D images were obtained by adjusting the CT value threshold and encoding pseudo color techniques.Results RT3D images can correctly reveal the macroscopic morphology of lymphatic metastasis and it's pressure to the trachea and carotid artery.There were significant differennces of visualization capabilities of radiological signs among different 3D techniques.Conclusion With the utilization of multiple methods,RT3D reconstruction can play an important role in detecting tracheoesophageal groove lymph node metastasis of esophageal cancer.It is an important complement to the axial CT images and the basis of clinical treatment.
9.Optimization on Hydrolysis Conditions of Coix Prolamin and Angiotensin-converting Enzyme Inhibitory Activity of Hydrolysates
Jianna YUAN ; Xiumei CHEN ; Shuai CUI ; Yingxi LIANG ; Zhonglei WANG ; Xiaohua ZHANG ; Lingzhi WANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(4):806-810
This study was aimed to optimize the hydrolysis conditions of Coix prolamin, which occupied the highest content in total protein of it, and then evaluate the angiotensin-converting enzyme (ACE) inhibitory activity of the corresponding hydrolysates. Pepsin was used to hydrolyze prolamin and OPA method was applied to determine the degree of hydrolysis. The optimum conditions of hydrolyzing prolamin were obtained by orthogonal design subse-quently. The ACE inhibitory activity of small molecular weight (less than 3 kD) peptides gained by ultrafiltration of the hydrolysates was assayed by RP-HPLC method. The result showed that the optimized hydrolysis conditions were substrate concentration of 1%, enzyme-to-substrate ratio of 1:5 and hydrolysis duration for 48 h. The hydrolysates exhibited an ACE inhibitory ratio of (83.40 ± 0.93)% at the concentration of 0.1 mg·mL-1. It was concluded that prolamin hydrolysates displayed a high ACE inhibitory activity in vitro, which provided guidance for further research of antihypertensive component and development of functional food from Coix.
10.Effects of butylphthalide on cognitive function, apoptosis and p-p38MAPK expression in hippocampus of rat model of vascular dementia
Shen YANG ; Yingchun LIANG ; Xiumei YAN ; Lei ZHANG ; Fangbo NING ; Lichen QIN ; Yunlin LIU
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(4):300-302
Objective To study the effects of butylphthalide on cognitive function,apoptosis and pp38MAPK in hippocampus of rat model of vascular dementia.Methods The vascular dementia (VD) model was established by two vascular (2VO) method,and then sixty male Wistar rats were randomly divided into VD group,sham operation group and NBP (butylphthalide) group.Rats in NBP group were given 120 mg · kg-1 · day-1 dose butylphthalide by gavage,and rats in VD group and sham operation group were given the same dose vegetable oil.The cognitive function of each rat was tested by Morris water maze.The expression of p-p38MAPK in the hippocampus was observed by Western blot;and the apoptosis was observed in hippocampal CAl region by TUNEL staining.Results The hidden platform escape latency of NBP group ((48.72 ± 7.01) s,(42.41 ± 4.06) s,(40.34 ± 2.46) s)was significantly shortened compared with those of VD group((82.71±8.27) s,(80.36±9.65) s,(77.74±6.33) s)(P< 0.01) ; and the former platform quadrant time and the number of passing through the platform of NBP group ((26.45±4.66)s,(1.84±0.82) times) were significantly prolonged (P<0.01) compared with those of VD group ((18.67±5.39) s,(1.32±0.61) times);the apoptosis and the expression of p38MAPK phosphorylation in hippocampus in NBP group ((153.65±9.85),(0.42±0.04)) significantly reduced (P<0.01) compared with those of VD group ((209.46±11.49),(0.88±0.10)).Conclusion Butylphthalide can improve the learning and memory ability of VD rats,the reduce apoptosis in the hippocampus by the inhibition of the P38MAPK pathway.This may be one of the ways by which butylphthalide can treat vascular dementia.