1. Salvia miltiorrhiza bge. f. alba up-regulates Bcl-2 and inhibits apoptosis of human umbilical vein endothelial cells
Academic Journal of Second Military Medical University 2010;31(11):1211-1214
Objective To study the influence of Salvia miltiorrhiza bge. f. alba(SMA) on apoptosis and Bcl-2 expression in human umbilical vein endothelial cell (HUVEC) in vitro. Methods HUVECs were isolated using perfusion and enzyme digestion methods, and the obtained cells were identified by morphological observation and VIII = Ag immunoreactivity examination. The cells in the exponential phase of growth were treated with H2O2 and different concentrations of SM A (high dose, 0.10 g/ml, low dose, 0.01 g/ml). The cell apoptosis was determined by flow cytometric analysis and Bcl-2 expression was examined by immunofluorescence mehtod. Results SMA significantly decreased the H2O2-induced apoptosis of HUVECs (P<0.01 in high dose group and P<0.05 in low dose group), and significantly increased the expression of Bcl-2 in high dose group(P<0.01). Conclusion SMA can inhibit H2O2-induced apoptosis of HUVEC, which might be associated with the increase of Bcl-2 expression. Salvia miltiorrhiza bge. f. alba; umbilical veins; endothelial cell; apoptosis; bcl-2 genes.
2.Protective effects of ulinastatin on intestinal barrier damaged after cardiopulmonary resuscitation in rats
Ruiming CHANG ; Jianxing CHANG ; Zhipeng JIANG ; Liqiang WEN ; Kai YU ; Tao YANG ; Longyuan JIANG
Chinese Journal of Emergency Medicine 2015;24(11):1234-1238
Objective To investigate the protective effects of Ulinastatin on intestinal barrier damaged after cardiopulmonary resuscitation (CPR) in rats in order to illustrate the possible mechanism.Methods Twenty-one male SD rats were divided into three groups randomly (random number) including control group (sham group, n =7), cardiopulmonary resuscitation group (CPR group, n =7) and ulinastatin group (UTI group, n =7).The rats were anesthetized with pentobarbital sodium (45-60 mg/kg) by intraperitoneal injection.The rats of sham group were only treated with endotracheal intubation.Ulinastatin (100 000 U/kg) were injected via caudal vein 2 hours prior to CPR, and cardiac arrest was made in rats and cardiopulmonary resuscitation was carried out in the UTI group, while equivalent volume of sterile saline was used instead in the CPR group.Blood and ileum samples were obtained at 48 hour after restoration of spontaneous circulation (ROSC).The levels of tumor necrosis factor alpha (TNF-α) and interleukin-1β (IL-1β) were assayed by ELISA (enzyme-linked immunosorbent assay), the protein levels of caspase-3 were determined by western blot, the intestinal mucosa were stained by terminaldeoxynucleoitidyl transferase mediated nick end labeling (TUNEL) and ileac mucosa were observed under transmission electron microscope.Data were processed with SPSS 17.0 software.Results The plasma levels of TNF-α and IL-1β were dramatically higher in CPR group than those in other two groups (CPR vs.sham, P < 0.01;CPR vs.UTI, P < 0.05).Moreover, the tight junctions between cells obviously broadened and loosened in the CPR group were found under electron microscope, however, this phenomenon was not obvious in the UTI group.A large number of apoptotic cells were observed by TUNEL assay in the CPR group, but a small number of apoptotic cells were observed in the UTI group.The protein levels of caspase-3 in the UTI group were higher than those in sham group, but lower than those in CPR group (both P < 0.05).Conclusions Ulinastatin has protective effects on the intestinal barrier damaged after cardiopulmonary resuscitation in rats by decreasing the proinflammatory mediators in the blood, reducing the expression of caspase-3and then reducing the numbers of apoptotic intestinal cells.
3.Research on correlation between lung and large intestine based on meridian and acupoint palpation in patients with bronchial asthma.
Cheng TAN ; Dan GAO ; Chang ZHANG ; Yu FU ; Bao-Kai WANG ; Qi ZHU ; Yan-Ping WANG
Chinese Acupuncture & Moxibustion 2014;34(2):145-148
OBJECTIVETo explore correlation between lung and large intestine and the two meridians under pathological condition in the view of meridian theory.
METHODSNinety-six cases of bronchial asthma were applied palpation at the running course of 12 regular meridians under the elbow and knees and back-shu points. And abnormal reactions were recorded, the affected meridians and back-shu points were discovered.
RESULTSThe abnormal reactions most frequently appeared on the Lung Meridian, followed by the Large Intestine Meridian, the Spleen Meridian, the Liver Meridian, the Stomach Meridian and the Triple Energizer Meridian. And the unusual reaction of the back-shu points most frequently appeared on Feishu (BL 13), and Dachangshu (BL 25) and Pishu (BL 21) followed as the next two.
CONCLUSIONThe existence of correlation between the Lung Meridian and the Large Intestine Meridians under pathological condition can be proved through meridian and acupoint palpation on bronchial asthma patients.
Acupuncture Points ; Acupuncture Therapy ; Adolescent ; Adult ; Aged ; Asthma ; physiopathology ; therapy ; Female ; Humans ; Intestine, Large ; physiopathology ; Lung ; physiopathology ; Male ; Meridians ; Middle Aged ; Young Adult
4.The evaluation of hospital scientific research output efficiency based on data envelopment analysis
Kai XU ; Ruihua SUN ; Huan LI ; Ruimin GUO ; Chang XIAO ; Kangda YU ; Wanling WU ; Zelong GU
Chinese Journal of Medical Science Research Management 2017;30(2):98-101
Objective Evaluate the efficiency of scientific research output of the 54 departments in a hospital,to put forward improvement suggestions based on the evaluation results.Methods Select appropriate indicators of scientific input and output,use the Data Envelopment Analysis method to evaluate and analyze the efficiency.Results According to the analysis of DEA,calculate the values of overall efficiency,technical efficiency,scale efficiency and scale income.Then compare and analyze the relative efficiency of different units scientific output,to identify the relatively superior department a mong the various categories.Conclusions According to the evaluation results,to find out the input surplus and insufficient output of each decision units.Then we will put forward suggestions on hospital resource allocation to optimize the scientific input and output,to improve the competitiveness of the hospital,and to activate the potential of each department's scientific research.
5.Gestation-specific reference intervals for thyroid function tests and the clinical significance for thyroid function monitoring through different periods of pregnancy
Li CHEN ; Kai CHANG ; Xiaoyun PU ; Shifu LUO ; Zhuyun PENG ; Ming CHEN ; Lili YU
Chinese Journal of Laboratory Medicine 2016;39(7):511-515
Objective To investigate the gestation-specific reference intervals (GRIs) and dynamic changes of thyroid function at different gestational ages in Chongqing .Methods Combining self-sequential longtitudinal with cross-sectional study, the serum samples from 640 pregnant women with different gestational age were collected from June 2014 to September 2015 in the Third Military Medical University. The free triiodothyronine (FT3), free thyroxine (FT4), thyroglobulin (TG), thyroid-stimulating hormone (TSH), thyroid peroxidase antibody (TPOAb), and antithyroglobulin antibody (TGAb) were detected by the direct chemiluminescence method.According to China Guideline for the diagnosis and treatment of thyroid disease in pregnancy and postpartum in 2012, the reference interval of the thyroid function was calculated.The data were analyzed by Chi square test .Results Established GRIs of thyroid function during pregnancy in Chongqing:The GRIs was 3.68-5.59 pmol/L for FT3, 9.34-17.02 pmol /L for FT4, 0.18-5.26 mIU/L for TSH in 6-9+6 weeks of pregnancy; the GRIs was 3.69-6.03 pmol /L for FT3, 8.42-15.75 pmol/L for FT4、0.09-4.85 mIU/L for TSH in 10-13+6 weeks of pregnancy; the GRIs was 3.24-5.46 pmol /L for FT3, 6.50-14.24 pmol/L for FT4, 0.11-5.13 mIU/L for TSH in 14-27+6 weeks of pregnancy;the GRIs was 3.06-5.05 pmol /L for FT3, 6.12-11.69 pmol/L for FT4, 0.75-3.67 mIU/L for TSH in 30-34 weeks of pregnancy; the GRIs was 2.96-5.00 pmol/L for FT3, 6.26-11.36 pmol /L for FT4, 0.84-5.54 mIU/L for TSH in 36-40 weeks of pregnancy.Screening by GRIs, the prevalence of thyroid dysfunction was 8.75% (46), however, the prevalence was 37.07% (195) in according with the guidelines,χ2 =120.5,P =0.000.The overdiagnosis rate was 28.32%(149 /526).Using the guidelines of thyroid disease and our GRIs, the thyroid disease was found 116 (22.05%) and 30 (5.70%) in the first screening. Moreover, the thyroid disease was found 79(19.27%) and 10(3.23%) during the repeat screening in the normal population.Conclusions Using the GRIs for thyroid function tests in normal singleton pregnant women could reduce the risk of over diagnosis .The detection rate of repeat screening of TPOAb negative patients was close to the first screening detection rate , and repeated screening could reduce the risk of missed diagnosis for thyroid dysfunction in pregnancy women .(Chin J Lab Med, 2016, 39:511-515 )
6.Screening and Metabolic Flux Analysis of Glutathione-high-yielding Strain from Saccharomyces cerevisiae
Zhi-Min YU ; Kai XU ; Peng XU ; Jia-Xin TANG ; Chang-Xin ZHAO ;
China Biotechnology 2006;0(07):-
The zinc chloride and cystine resistant strain of S.cerevisiae YZM-14(ZnCl2r,Cysr) was screened with the mutant processing of the protoplast of S.cerevisiae by combinative mutagens of ultraviolet and nitrite.The glutathione(GSH) production(84.72 mg/L),dry cell weight(7.63 g/L) and the intracellular GSH content(11.10 mg/g) of YZM-14 were 2.79,1.63 and 1.71 times compared with that of the initial strain.The biosynthetic process of GSH was divided into three phases according to the time course of the specific cell growth rate and GSH yielding coefficient.In the second phase,the metabolic flux of the pentose phosphate pathway and the GSH precursors biosynthetic pathway of the mutant strain increased by 8.1 mmol/(g?h),compared with that of the initial strain.Furthermore,the metabolic flux of the organic acids secretion of the mutant strain decreased.Through these mechanisms,the utilization efficiency of the carbon sources was enhanced and high production of GSH was obtained.
7.Inducing vascular smooth muscle cell proliferation by insulin involves in phosphatidylinositol 3-kinase and ERK1/2
Chang-Qing YU ; Ye ZHANG ; Chun-Jiang FU ; X-Kai WANG ;
Chinese Journal of Pathophysiology 2000;0(11):-
AIM:To investigate the effect of insulin on vascular smooth muscle cells (VSMCs) proliferation and to evaluate the intracellular signaling pathways involved.METHODS:VSMCs separated from Sprague-Dawley rats were used in this study. The proliferation of VSMCs induced by insulin was assayed by [3H]-thymidin incorporation. The protein expression and activity of p-ERK1/2 were determined by immunblot and [?-32P]ATP incorporation.RESULTS:Insulin induced cell proliferation in a concentration-dependent manner. The proliferative effect of insulin on VSMCs was inhibited partly by LY294002 (48.8%),an inhibitor of PI-3 kinase,and the ERK1/2 inhibitor PD98059 (43.6%),respectively. Moreover,phosphorylation of ERK1/2 and activity of ERK1/2 induced by insulin were also inhibited partly by LY294002.CONCLUSION:PI-3 kinase and ERK1/2 are involved in insulin induced VSMCs proliferation.
8.Obstruction of ureteropelvic junction(Report of 47 cases)
Hui-Chang LI ; Kai ZHENG ; Cheng ZHENG ; Yu-An LI
Journal of Clinical Urology 2000;15(11):503-504
Purpose: To investigate the new method of diagnosis and trearment for the obstruction ofureteropelvic junction (UP J). Methods:From 1993 to June 1999,47 cases of obstruction of UPJ have been treatedsugically with the diagnosis confirmed on histopathological studies. The preoperative diagnosis was usually madeon videocast retrograde pyelography and ultrasonography. In surgical treatment,the double tongue-shaped flaptype of pyeloplasty designed by us was specially undergone. Results:The accurate rate of ultrasonography andvideocast retrograde pyelography was 80. 2%and 100%. There were no post operative complication such asconstriction and uric leakage after the double tongue-shaped flap type of pyeloplasty. Conclusions: Forpreoperative diagnosis of obstruction of UPJ, ultrasonography was a better examination method. The doubletongue-shaped flap type of pyeloplasty designed by us was considered as a satisfactory effect,less complication,and should be recommendable for clinical application.
9.Analysis of 27 death cases of the abandoned babies in Shanghai.
Kai LI ; Yu-Feng WU ; Yan-Chang GE ; Kai-Jun MA
Journal of Forensic Medicine 2012;28(6):429-431
OBJECTIVE:
To analyze and summarize the characteristics of the death cases of the abandoned babies in Shanghai, and to explore the main points and features in forensic investigation.
METHODS:
Twenty-seven death cases of the abandoned babies were selected from 2007 to 2011 in the Institute of Forensic Science of Shanghai Public Security Bureau. The cases were retrospectively analyzed in the respects of scene of abandonment, cause of death and manner of death, etc.
RESULTS:
Among the death cases of the abandoned babies in Shanghai, most of the infants were alive with young unmarried mothers. The main cause of death was mechanical asphyxia, and homicide occurred more commonly.
CONCLUSION
It is significantly difficult to determine the cause and manner of death in such cases, needing to be a comprehensive analysis on the case background, the investigation of scene and the examination of injury, etc.
Asphyxia/etiology*
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Autopsy
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Cause of Death
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Child, Abandoned/statistics & numerical data*
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China/epidemiology*
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Female
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Forensic Pathology
;
Humans
;
Infant
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Infant, Newborn
;
Infanticide
;
Male
;
Retrospective Studies
10.Effects of modified Ganmai Dazao decoction on neuroendocrine system in patients with climacteric depression.
Xiao-Juan MA ; Jie ZHAO ; Zhen-Yu FENG ; Jian-Min CHANG ; Shuang MENG ; Hu-Ze LIU ; Kai-Fang FAN
China Journal of Chinese Materia Medica 2014;39(23):4680-4684
Clinical study of modified Ganmai Dazao decoction in the treatment of yang deficiency climacteric depression and observe the effects of modified Ganmai Dazao decoction on neuroendocrine system in patients with yang deficiency climacteric depression. 86 cases were randomly divided into treatment group treated with modified Ganmai Dazao decoction and control group treated with Deanxit. The curative effect was evaluated with Hamilton's depressive scale (HAMD) and pittsburgh sleep quality scale (PSQI) before and at the end of the two and four weeks of the treatment, the serum levels of serotonin (5-HT), norepinephrine (NE), estradiol (E2), follicle stimulating hormone (FSH), luteotropic hormone (LH) were detected before and after the four weeks of the treatment The results showed that the total effective power of treatment group was 88.4% and the total effective power of control group was 81.4% after four weeks interference, with insignificant difference between the two groups. After two and four weeks of the treatment, the score of HAMD decreased remarkably in both groups (P < 0.01), with insignificant difference between the two groups in same phase. After two and four weeks of the treatment, the total score of PSQI decreased remarkably in both groups (P < 0.05), with significant difference between the two groups after four weeks (P < 0.01). After four weeks of treatment, the serum levels of 5-HT and NE increased (P < 0.01), with insignificant difference between the groups. After four weeks of treatment, the serum levels of E2 increased obviously (P < 0.05), the levels of FSH decreased obviously (P < 0.05), the levels of LH decreased insignificant, with insignificant difference between two groups. This study indicates that modified Ganmai Dazao decoction has obvious therapeutic effects in the treatment of climacteric depression, and showed equivalent efficacy with Deanxit, and modified Ganmai Dazao decoction has better effect on improving the sleep quality in patients than Deanxit, the effect of improved clinical symptoms may be through adjusted levels of 5-HT, NE, E2, FSH and LH of climacteric depression.
Adult
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Depression
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blood
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drug therapy
;
etiology
;
Drugs, Chinese Herbal
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administration & dosage
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Female
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Follicle Stimulating Hormone
;
blood
;
Humans
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Menopause
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drug effects
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psychology
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Middle Aged
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Neurosecretory Systems
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drug effects
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metabolism
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Norepinephrine
;
blood
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Phytotherapy
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Serotonin
;
blood