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1A randomized controlled clinical trial on the treatment of Thymosin-a1 versus interferon-α in patients with hepatitis B显示文摘INTRODUCTIONChronic hepatitis B virus (HBV) infection is a serious problem because of its world wide distribution and possible adverse sequelae ,such as cirrhosis and hepatocellular carcinoma .The World Health Organization estimates that HBV has infected mord than 350 million people worldwide ,and up to 20% of them will become chromic carricrs and will be at significant risk for cirrhosis and HCC .The ultimate goal of the therapy for chronic hepatitis B is to prevent progression to cirrhosis and to prevent development of HCC.Jing You Lin Zhuang Bao Zhang Tang Wei Bo Yang Su Ying Ding Wu Li Rong Xue Wu Hong Li Zhang Yan Mei Zhang Shao Ming Yan Lu Zhang ~1Department of Infectious Diseases,The First Affiliated Hospital of Kunming Medical College,Kunming 650032,Yunnan Province,China ~2Departrnent of Hepatology,Kunming Third Municipal People’s Hospital,Kunming 650041,Yunnan Province,China 2001World Journal of Gastroenterology2001,7,3:48
2Assessing the health risk of heavy metals in vegetables to the general population in Beijing,China显示文摘A systematic survey of As, Cd, Cr, Cu, Ni, Pb and Zn concentrations in vegetables from 416 samples (involving 100 varieties) in Beijing was carried out for assessing the potential health risk to local inhabitants. The results indicated that the metal concentrations in vegetables ranged from < 0.001 to 0.479 μg/g fresh weight (fw) (As), < 0.001 to 0.101 μg/g fw (Cd), < 0.001 to 1.04 μg/g fw (Cr), 0.024 to 8.25 μg/g fw (Cu), 0.001 to 1.689 μg/g fw (Ni), < 0.001 to 0.655 μg/g fw (Pb) and 0.01 to 25.6 μg/g fw (Zn), with average concentrations of 0.013, 0.010, 0.023, 0.51, 0.053, 0.046 and 2.55 μg/g fw, respectively. The results showed that the concentrations of As, Cr, Cu, Cd, Pb and Ni in vegetables from open-fields were all significantly higher than those grown in greenhouses. In addition, in local-produced vegetables, all HMs except Zn were significantly higher than those in provincial vegetables. The estimated daily intake (EDI) of As, Cd, Cr, Cu, Ni, Pb and Zn from vegetables was 0.080, 0.062, 0.142, 3.14, 0.327, 0.283 and 15.7 μg/(kg body weight (bw)·d) for adults, respectively. Arsenic was the major risk contributor for inhabitants since the target hazard quotient based on the weighted average concentration (THQw) of arsenic amounted to 44.3% of the total THQ (TTHQ) value according to average vegetable consumption. The TTHQ was lower than 1 for all age groups, indicating that it was still safe for the general population of Beijing to consume vegetables.SONG Bo LEI Mei CHEN Tongbin ZHENG Yuanming XIE Yunfeng LI Xiaoyan GAO Ding 2009Journal of Environmental Sciences2009,21,12:45
3Microstructures and Mechanical Properties of Fe-Mn-(Al, Si) TRIP/TWIP Steels显示文摘The mechanical properties and microstructure of two low carbon high manganese steels with 23.8% (No.1) and 33% (No.2) (mass percent) of manganese were investigated. The results showed that No.1 steel possesses high strength and high plasticity, and No.2 steel has a relatively high strength and extraordinary plasticity. The No.1 steel exhibits both TRIP (transformation induced plasticity) and TWIP (twin induced plasticity) effects during the deformation; while only TWIP effect appeared under the same deformation condition for No.2 steel. The comparison between the microstructures and mechanical properties of two steels was made, and the strengthening mechanisms were also analyzed.DING Hua TANG Zheng-You LI Wei WANG Mei SONG Dan 2006Journal of Iron and Steel Research(International)2006,13,6:31
4Preliminary results of Thymosin-a1 versus interferon-α treatment in patients with HBeAg negative and serum HBV DNA positive chronic hepatitis B显示文摘INTRODUCTIONIn China ,the incidence and mortality of gastric cancer rank the second among all cancers. Recent development of cancer [1-20].The aim of this study was investigat the insight of apoptosis and bcl-2, p53 and C-myc protein expression in the development of gastric cancer .Lin Zhuang Jing You Bao Zhang Tang Su Ying Ding Kui Hua Yan Dan Peng Yan Mei Zhang Lu Zhang ~1Department of Hepatology,Kunming Third Municipal Peoples Hospital,Kunming 650041,Yunnan Province,China ~2Department of Infectious Diseases,The First Affiliated Hospital of Kunming Medical College,Kunming 650032,Yunnan Province,China 2001World Journal of Gastroenterology2001,7,3:22
5Correlation between gene expression of CCK-A receptor and emptying dysfunction of the gallbladder in patients with gallstones and diabetes mellitus显示文摘BACKGROUND: The incidence of gallstone is higher in patients with diabetes mellitus than in general population because of hypomotility and lowered emptying function. The aim of this study was to investigate the gene expression of cholecystokinin-A ( CCK-A) receptor in patients with gallstones and diabetes mellitus and its correlation with the hypomotility of the gallbladder. METHODS: Smooth muscle was taken from the gallbladder after cholecystectomy and total RNA was extracted from it by Trizol reagent to compose cDNA. CCK-A receptor was enlarged by reverse transcription-polymerase chain reaction (RT-PCR) and identified by electrophoresis. Based on the analysis of images, the relative expression of the CCK-A re- ceptor was obtained after comparison of the CCK-A recep- tor and β-action. The emptying function of the gallbladder was measured with B ultrasound before operation. RESULTS: Gallbladder ejetion fraction ( GBEF2 ) (%) (24.9±12.7) decreased more significantly in patients with gallstones and diabetes mellitus than in those with simple gallstone (61.5±8.5) (P <0.01). In the two groups, a frac- tion of 540bp of CCK-A receptor could be testified respec- tively, but the relative expression was different. Compared to the expression of β-action, it was 0. 400 ±0.068 in pa- tients with gallstones and diabetes mellitus, but 0. 622 ± 0.070 in those with gallstone only (F =7.169, P <0.01). The result was consistent with the decreased contractility. CONCLUSIONS: The gene expression of CCK-A receptor on the smooth muscle of the gallbladder may decrease more significantly in patients with gallstone and diabetes mellitus than in those with gallstone only; this result is con- sistent with the decreased motih’ty. Thus the lowered ex- pression of CCK-A receptor is probably the cause of hypo-motility in patients with gallstones and diabetes mellitus.Xiong Ding, Chang-You Lu, Ying Mei, Chang-An Liu and Yu-Jun Shi Chongqing, China Department of Hepatobiliary Surgery, Second Clinical College, Chongqing Medical University, Chongqing 400010, China 2005Hepatobiliary & Pancreatic Diseases International2005,4,2:20
6Alterations of biliary biochemical constituents and cytokines in infantile hepatitis syndrome显示文摘AIM: To investigate the biliary biochemical constituents and cytokines in infantile hepatitis syndrome (IHS). METHODS: From 42 IHS subjects and 21 controls, serum and biliary biochemical constituents, including total bilirubin (TBIL), direct bilirubin (DBIL), alanine aminotransferase (ALT), gamma-glutamyl transpeptidase (γ-GT), total bile acid (TBA), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) both in bile and serum, were assayed. The subjects with IHS were divided into a cholestasis group (n = 21) and a hepatitis group (n = 21). RESULTS: In the cholestasis group, serum TBIL, DBIL, ALT, γ-GT, TBA, IL-6 and TNF-α levels were higher than those in the control (P < 0.01); and also the biliary TBIL, DBIL, γ-GT and TBA levels were lower than those in the control, whereas biliary IL-6 and TNF-α levels were higher than those in the control (P < 0.01). In the cholestasis group, serum IL-6 and TNF-α levels were lower than those in bile (P < 0.01). In the hepatitis group, serum DBIL, ALT, γ-GT, TBA, IL-6 and TNF-α levels were higher than those in the control (P < 0.01 or 140.57 ± 70.32 vs 79.06 ± 35.25, P < 0.05), while biliary TBIL, DBIL, γ-GT and TBA levels were lower than those in the control (P < 0.01), and biliary IL-6 and TNF-α levels were higher than those in the control (P < 0.01). In the hepatitis group, serum IL-6 and TNF-α levels were also lower than those in bile (P < 0.01). Serum TBIL, DBIL, γ-GT, IL-6 and TNF-α levels in the cholestasis group were higher than those in the hepatitis group, while biliary IL-6 and TNF-α levels in the cholestasis group were higher than those in the hepatitisgroup. Biliary IL-6 and TNF-α were found to be more significantly increased than serum IL-6 and TNF-α in IHS (P < 0.01). The biliary IL-6 and TNF-α levels were positively correlated with serum DBIL, TBA and γ-GT levels in IHS subjects. CONCLUSION: Biliary biochemical constituents alter in coincidence with pathological changes in hepatocellular injury. Cholestasis is more serious in IHS patients of cholestasis subtype. Assay of biliary IL-6 and TNF-α levels can be specific and sensitive to determine the inflammatory status of impaired liver in IHS.Yan Ding Lei Zhao Hong Mei Zhi-Hua Huang Shu-Ling Zhang 2006World Journal of Gastroenterology2006,12,43:19
7Effect of L-NAME on nitric oxide and gastrointestinal motility alterations in cirrhotic rats显示文摘AIM: To invsstigare the effect of L-NAME on nitric oxide andgastriubtestubal motility alterations in cirrhotic ratsMETHODS: Rats with cirrhosis induced by carbontetrachloride were randomly divided into two groups, one( n= 13) receiving 0. 5 mg@ kg-1 per clay of NG-nitro-L-argininemethyl ester (L-NAME), a nitric oxide synthase inhibitor,for 10 days, whereas the other group ( n = 13) and control( n = 10) rats were administrated the same volume of 9 g@ L-1saline.Half gastric emptying time and 2 h residual rate weremeasured by SPECT, using 99m Tc-DTPA-labeled bariumsuifate as test meal. Gastrointestinal transition time wasrecorded simultaneously. Serum concentration of nitrcoxide (NO) was determined by the kinetic cadmiunreduction and colorimetric methods. ImmunohistochemicalSABC method was used to observe the expression anddistribution of three types of nitric oxide synthase (NOS)isoforms in the mt gastrointestinal tract. Western blot wasused to detect expression of gastrointestinal NOS isoforms.RESULTS: Half gastric emptying time and trans-gastrointestinal time were significantly prolonged( 124.0 ± 26.4min; 33.7± 8.9min;72.1 ± 15.3 min; P<0.01), (12.4±0.5h; 9.5±0.3 h; 8.2±0.8 h; P<0.01), 2h residual rate wasraised in cirrhotic rots than in controls and cirrhotic ratstreated with L-NAME(54.9± 7.6 % ,13.7 ± 3.2 %, 34.9± 10.3%, P< 0.01). Serum concentration of NO was significantlyincreased in cirrhotic rots than in the other groups (8.20 ± 2.48)μmol@L-1, (5.94± 1.07) μmol@L-1 ,and control (5.66± 1.60) tμmol@L-1, P< 0.01. NOS staining intensities which weremainly located in the gastrointestinal tissues were markedlylower in cirrhotic rats than in the controls and cirrhotic ratsafter treated with L- NAME.CONCLUSION: Gastrointestinal motility was remarkablyinhibited in cirrhotic rats, which could he alleviated by L-NAME. Nitric oxide may play an important role in theinhibition of gastrointestinal motility in cirrhotic rats.Xin Wang Zong-You Zhang Mei Lan Ji-Yan Miao Xue-Gang Guo Yong-Quan Shi Yan-Qiu Zhao Jie Ding Kai-Cun Wu Dai-Ming Fan,Institute of Digestive disease,Xijing Hospital,Fourth Military Medical University,Xi’an 710032,Shaanxi Province,China Yue-Xia Zhong,Emergency Department,Tangdu Hospital,Fourth Military Medical University,Xi’an 710038,Shaanxi Province,China Ju Lu,Class EE 87,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China Bo-Rong Pan,Oncology Center,Xijing Hospital,Fourth Military Medical University,Xi’an 710032,Shaanxi Province,China 2002World Journal of Gastroenterology2002,8,2:19
8Comparison of Undernutrition Prevalence of Children under 5 Years in China between 2002 and 2013显示文摘Objective To describe the undernutrition status of children under 5-year in China, and study the trend between 2002 and 2013. Methods The study was based on two national surveys. Undernutrition was determined against WHO's 2006 growth standards. The prevalence in 2013 and 2002 was weighted by China sixth National Population Census(2010). The relationship between undernutrition and gender/age groups/different areas use weighted logistic regression. Results The results indicated the overall prevalence of stunting, underweight, and wasting of Chinese children under 5-year was 8.1%, 2.4%, and 1.9% in 2013, respectively. The prevalence of stunting was higher for children aged 12-47 month, while underweight was higher for children aged 48-59 month. The prevalence of undernutrition was higher in rural areas than in urban areas, especially in poor rural areas. There was a decline of stunting, underweight, and wasting between 2002 and 2013 among the children, with greater reduction in rural areas than in urban areas. Conclusion The prevalence of undernutrition of children under 5-year remains high in rural areas especially in poor rural areas in China. It is urgent to take action to control undernutrition in the vulnerable areas and subgroups.YU Dong Mei ZHAO Li Yun YANG Zhen Yu CHANG Su Ying YU Wen Tao FANG Hong Yun WANG Xun YU Dan GUO Qi Ya XU Xiao Li FANG Yue Hui ZHAO Wen Hua YANG Xiao Guang DING Gang Qiang LIANG Xiao Feng 2016Biomedical and Environmental Sciences2016,29,3:18
9Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients显示文摘ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan WANG Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying WANG Li SHI Wei LIU Jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN Jian-xin WANG Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan WANG Rong ZHANG Jing-hong WANG Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao 2013Chinese Medical Journal2013,,12:16
10Small molecule inhibitors reveal allosteric regulation of USP14 via steric blockade显示文摘The ubiquitin system is important for drug discovery,and the discovery of selective small-molecule inhibitors of deubiquitinating enzymes (DUBs) remains an active yet extremely challenging task. With a few exceptions,previously developed inhibitors have been found to bind the evolutionarily conserved catalytic centers of DUBs,resulting in poor selectivity. The small molecule IU1 was the first-ever specific inhibitor identified and exhibited surprisingly excellent selectivity for USP14 over other DUBs. However,the molecular mechanism for this selectivity was elusive. Herein,we report the high-resolution co-crystal structures of the catalytic domain of USP14 bound to IU1 and three IU1 derivatives. All the structures of these complexes indicate that IU1 and its analogs bind to a previously unknown steric binding site in USP14,thus blocking the access of the C-terminus of ubiquitin to the active site of USP14 and abrogating USP14 activity. Importantly,this steric site in USP14 is very unique,as suggested by structural alignments of USP14 with several known DUB X-ray structures. These results,in conjunction with biochemical characterization,Indicate a coherent steric blockade mechanism for U5P14 inhibition by compounds of the IU series. In light of the recent report of steric blockade of USP7 by FT671,this work suggests a potential generally applicable allosteric mechanism for the regulation of DUBs via steric blockade,as showcased by our discovery of IU1-248 which is 10-fold more potent than IU1.Yiwei Wang Yuxuan Jiang Shan Ding Jiawang Li Ningjing Song Yujing Ren Danning Hong Cai Wu Bin Li Feng Wang Wei He Jiawei Wang Ziqing Mei 2018Cell Research2018,28,12:15
11Leukotriene D4 induces brain edema and enhances CysLT2 receptor- mediated aquaporin 4 expression显示文摘Wang Meng - Ling Yuan Yu - Mei Huang Xiao - Jia Fang San - Hua Zhang Wei-Ping Lu Yu-Bi Ding Qian Wei Er-Qing 2006中国药理通讯2006,23,4:14
12Dual-targeting and microenvironment-responsive micelles as a gene delivery system to improve the sensitivity of glioma to radiotherapy显示文摘Dbait is a small double-stranded DNA molecule that has been utilized as a radiosensitizer to enhance the sensitivity of glioma to radiotherapy(RT). However, there is no effective drug delivery system to effectively overcome the blood–brain barrier(BBB). The aim of this study was to develop a gene delivery system by using the BBB and glioma dual-targeting and microenvironment-responsive micelles(ch-Kn(s-s)R8-An) to deliver Dbait into glioma for RT. Angiopep-2 can target the low-density lipoprotein receptor-related protein-1(LRP1) that is overexpressed on brain capillary endothelial cells(BCECs) and glioma cells. In particular, due to upregulated matrix metalloproteinase 2(MMP-2) in the tumor microenvironment, we utilized MMP-2-responsive peptides as the enzymatically degradable linkers to conjugate angiopep-2. The results showed that ch-Kn(s-s)R8-An micelles maintained a reasonable size(80–160 nm) with a moderate distribution and a decreased mean diameter from the cross-linking as well as exhibited low critical micelle concentration(CMC) with positive surface charge, ranging from 15 to40 mV. The ch-K5(s-s)R8-An/pEGFP showed high gene transfection efficiency in vitro, improved uptake in glioma cells and good biocompatibility in vitro and in vivo. In addition, the combination of ch-K5(s-s)R8-An/Dbait with RT significantly inhibited the growth of U251 cells in vitro. Thus, ch-K5(s-s)R8-An/Dbait may prove to be a promising gene delivery system to target glioma and enhance the efficacy of RT on U251 cells.Xiuxiu Jiao Yuan Yu Jianxia Meng Mei He Charles Jian Zhang Wenqian Geng Baoyue Ding Zhuo Wang Xueying Ding 2019Acta Pharmaceutica Sinica B2019,9,2:13
13Neuroprotective effects of autophagy inhibition on hippocampal glutamate receptor subunits after hypoxia-ischemia-induced brain damage in newborn rats显示文摘Autophagy has been suggested to participate in the pathology of hypoxic-ischemic brain damage(HIBD).However,its regulatory role in HIBD remains unclear and was thus examined here using a rat model.To induce HIBD,the left common carotid artery was ligated in neonatal rats,and the rats were subjected to hypoxia for 2 hours.Some of these rats were intraperitoneally pretreated with the autophagy inhibitor 3-methyladenine(10 m M in 10 μL) or the autophagy stimulator rapamycin(1 g/kg) 1 hour before artery ligation.Our findings demonstrated that hypoxia-ischemia-induced hippocampal injury in neonatal rats was accompanied by increased expression levels of the autophagy-related proteins light chain 3 and Beclin-1 as well as of the AMPA receptor subunit GluR 1,but by reduced expression of GluR 2.Pretreatment with the autophagy inhibitor 3-methyladenine blocked hypoxia-ischemia-induced hippocampal injury,whereas pretreatment with the autophagy stimulator rapamycin significantly augmented hippocampal injury.Additionally,3-methyladenine pretreatment blocked the hypoxia-ischemia-induced upregulation of Glu R1 and downregulation of GluR2 in the hippocampus.By contrast,rapamycin further elevated hippocampal Glu R1 levels and exacerbated decreased GluR2 expression levels in neonates with HIBD.Our results indicate that autophagy inhibition favors the prevention of HIBD in neonatal rats,at least in part,through normalizing Glu R1 and GluR2 expression.Li-xiao Xu Xiao-juan Tang Yuan-yuan Yang Mei Li Mei-fang Jin Po Miao Xin Ding Ying Wang Yan-hong Li Bin Sun Xing Feng 2017Neural Regeneration Research2017,12,3:12
14Orthogonal Test Design for Optimization of the Extraction of Flavonid from the Fructus Gardeniae显示文摘Objective It is imperative to provide some consistent experimental results for the extraction of flavonid from Fructus Gardeniae.Methods The key extraction parameters that influenced the yield of flavonid from Fructus Gardeniae were optimized by employing an orthogonal experiment [L9(3)4],including the ratio of buffer solution (Na2B4O7·10H2O) to raw material,concentration of Fructus Gardeniae in extracting solution,extraction time and pH of buffer solution.An UV/Vis detector was used to perform the qualitative and quantitative analyses of the extracted flavonid with the using of the standard sample.Results The maximum extraction yield of the crude extract was 5.0533 (mg/g) after 20 min when the mass ratio of Na2B4O7·10H2O to raw material was 0.4%,the concentration of Fructus Gardeniae in the extraction solution was 1/12 (g/mL),and pH of buffer solution was 4.5.The positive reactions to the Molish and HCl‐Mg tests suggested that the extracted compound was flavonoid,and FTIR measurements also identified the presence of flavonoid in the extracts.Conclusion This work is expected to provide a basis for further research,development,and utilization of Fructus gardenia in flavonid extraction.CAI Ding Jian SHU Qing XU Bao Quan PENG Li Mei HE Yan 2011Biomedical and Environmental Sciences2011,24,6:12
15Grey matter volume abnormalities in patients with bipolar I depressive disorder and unipolar depressive disorder:a voxelbased morphometry study显示文摘Bipolar disorder and unipolar depressive disorder(UD) may be different in brain structure. In the present study,we performed voxel-based morphometry(VBM) to quantify the grey matter volumes in 23 patients with bipolar I depressive disorder(BP1) and 23 patients with UD,and 23 age-,gender-,and educationmatched healthy controls(HCs) using magnetic resonance imaging. We found that compared with the HC and UD groups,the BP1 group showed reduced grey matter volumes in the right inferior frontal gyrus and middle cingulate gyrus,while the UD group showed reduced volume in the right inferior frontal gyrus compared to HCs. In addition,correlation analyses revealed that the grey matter volumes of these regions were negatively correlated with the Hamilton depression rating scores. Taken together,the results of our study suggest that decreased grey matter volume of the right inferior frontal gyrus is a common abnormality in BP1 and UD,and decreasedgrey matter volume in the right middle cingulate gyrus may be specifi c to BP1.Yi Cai Jun Liu Li Zhang Mei Liao Yan Zhang Lifeng Wang Hongjun Peng Zhong He Zexuan Li Weihui Li Shaojia Lu Yuqiang Ding Lingjiang Li 2015Neuroscience Bulletin2015,31,1:11
16Clinical features and long-term prognosis of patients with anomalous origin of the left coronary artery from the pulmonary artery显示文摘从肺的动脉(ALCAPA ) 的左冠的动脉的背景异常起源是一个稀罕的先天的心异例。我们试图与 ALCAPA.Methods 说明临床的特征和病人的长期的预后 23 个病人( 13 男性和 10 女性,年龄从 2.5 个月 到 65 年)在北京 Anzhen 作为 ALCAPA 鉴别到2009年6月的从1984年4月的医院被划分成二个组,基于发作的年龄:组 1 (12 个月, n=16 ) 并且组 2 (12 个月, n=7 ) 56 削尖的 .Results 在组 1 的百分之三个病人作为 endocardial fibroelastosis (9/16 ) 被误诊, 18.8% 是扩大了心肌症(3/16 ) 和 6.3% 同样心肌的梗塞(1/16 ) 。在组 2 的病人通常作为冠的心疾病,心肌炎,或专利 ductus arteriosus 被诊断。在组 1 揭示反常 Q 的 Electrocardiography 处于领先与 T 波浪倒置飘动我, avL, V4-V6,特别在铅 avL (深、宽的 Q 波浪) ;但是在组 2 的没有特定的表明。在组 1 的病人的一个更高的百分比在胸拍上有心脏扩大症(86.7% 对 33.3% , P=0.031 ) 当肺的动脉伸出在组 2 是更普通的时(26.7% 对 83.3% , P=0.046 ) 。更低的左室的喷射部分(LVEF ) 在比在组 2 的组 1 是在场的((48.5 ? 桴 ? 慢吗?ZHENG Jian-yong HAN Ling DING Wen-hong JIN Mei ZHANG Gui-zhen XIAO Yan-yan LUO Yi CHENG Pei MENG Xu ZHAO Qu-ming 2010Chinese Medical Journal2010,,20:10
17Transplantation of placenta-derived mesenchymal stem cells reduces hypoxic-ischemic brain damage in rats by ameliorating the inflammatory response显示文摘Hypoxic-ischemic brain damage(HIBD)is a common cause of infant death.The purpose of our research was to explore the immunoregulatory mechanism of placenta-derived mesenchymal stem cells(PD-MSCs)in HIBD treatment.Seven-day-old rat pups were randomly divided into HIBD,PD-MSC,fibroblast,and control groups.Forty-eight hours after HIBD induction,cells at a density of 5×104 cells/10µl were injected into the cerebral tissue in the PD-MSC and fibroblast groups.The TNF-α,interleukin-17(IL-17),interferon-γ(IFN-γ),and IL-10 levels were detected through quantitative real-time polymerase chain reaction(RT-PCR)and enzyme-linked immunosorbent assay(ELISA).Regulatory T cell(Tregs)populations were detected through flow cytometry,and forkhead box P3(Foxp3)was measured through western blot analysis.Behavioral tests and gross and pathological examinations showed that PD-MSC treatment exerted significantly stronger neuroprotective effects than the other treatments.The expression levels of pro-inflammatory cytokines were substantially upregulated after HI injury.Compared with fibroblast treatment,PD-MSC treatment inhibited the production of pro-inflammatory cytokines and increased the production of IL-10 in the ischemic hemispheres and peripheral blood serum(all P<0.01).Flow cytometry results showed a notable increase in the number of Tregs within the spleen of the HIBD group.Moreover,the number of Tregs and the Foxp3 expression levels were higher in the PD-MSC treatment group than in the HIBD and fibroblast groups(all P<0.01).Our research suggests that the mechanism of PD-MSC treatment for HIBD partially involves inflammatory response suppression.Hongfang Ding Hui Zhang Huifang Ding Dong Li Xinhao Yi Xiaoxu Ma Ruijuan Li Mei Huang Xiuli Ju 2017Cellular & Molecular Immunology2017,14,8:10
18TP53-induced glycolysis and apoptosis regulator alleviates hypoxia/ischemia-induced microglial pyroptosis and ischemic brain damage显示文摘Our previous studies have demonstrated that TP53-induced glycolysis and apoptosis regulator(TIGAR)can protect neurons after cerebral ischemia/reperfusion.However,the role of TIGAR in neonatal hypoxic-ischemic brain damage(HIBD)remains unknown.In the present study,7-day-old Sprague-Dawley rat models of HIBD were established by permanent occlusion of the left common carotid artery followed by 2-hour hypoxia.At 6 days before induction of HIBD,a lentiviral vector containing short hairpin RNA of either TIGAR or gasdermin D(LV-sh_TIGAR or LV-sh_GSDMD)was injected into the left lateral ventricle and striatum.Highly aggressively proliferating immortalized(HAPI)microglial cell models of in vitro HIBD were established by 2-hour oxygen/glucose deprivation followed by 24-hour reoxygenation.Three days before in vitro HIBD induction,HAPI microglial cells were transfected with LV-sh_TIGAR or LV-sh_GSDMD.Our results showed that TIGAR expression was increased in the neonatal rat cortex after HIBD and in HAPI microglial cells after oxygen/glucose deprivation/reoxygenation.Lentivirusmediated TIGAR knockdown in rats markedly worsened pyroptosis and brain damage after hypoxia/ischemia in vivo and in vitro.Application of exogenous nicotinamide adenine dinucleotide phosphate(NADPH)increased the NADPH level and the glutathione/oxidized glutathione ratio and decreased reactive oxygen species levels in HAPI microglial cells after oxygen/glucose deprivation/reoxygenation.Additionally,exogenous NADPH blocked the effects of TIGAR knockdown in neonatal HIBD in vivo and in vitro.These findings show that TIGAR can inhibit microglial pyroptosis and play a protective role in neonatal HIBD.The study was approved by the Animal Ethics Committee of Soochow University of China(approval No.2017LW003)in 2017.Lan-Lan Tan Xiao-Lu Jiang Li-Xiao Xu Gen Li Chen-Xi Feng Xin Ding Bin Sun Zheng-Hong Qin Zu-Bin Zhang Xing Feng Mei Li 2021Neural Regeneration Research2021,16,6:9
19Liraglutide reduces the body weight and waist circumference in Chinese overweight and obese type 2 diabetic patients显示文摘目的: 调查 liraglutide 的效果,象 glucagon 一样 peptide-1 (GLP-1 ) 受体使活跃之物,在用超重、肥胖的汉语的身体重量和腰圆周上打 2 个糖尿病的病人。Ping FENG De-min YU Li-ming CHEN Bao-cheng CHANG Qiu-di JI Shu-ying LI Mei ZHU Sheng-hua DING Bao- zhen ZHANG Su-li WANG Hong-tao LI Jing-na LIN Mao-jun WANG Jian-chao GUO Jie LIU Zhong-dong LIU Shen- tao WU Ju-hong YANG 2015Acta Pharmacologica Sinica2015,36,2:9
20Variation in cis-regulation of a NAC transcription factor contributes to drought tolerance in wheat显示文摘Drought is a major environmental factor limiting wheat production worldwide,and developing drought-tolerant cultivars is a central challenge for wheat breeders globally.Therefore,it is important to identify genetic components determining drought tolerance in wheat.In this study,we identified a wheat NAC gene(TaNAC071-A)that is tightly associated with drought tolerance by a genome-wide association study.Knockdown of TaNAC071-A in wheat attenuated plant drought tolerance,whereas its overexpression significantly enhanced drought tolerance through improved water-use efficiency and increased expression of stress-responsive genes.This heightened water-saving mechanism mitigated the yield loss caused by water deficit.Further candidate gene association analysis showed that a 108-bp insertion in the promoter of TaNAC071-A alters its expression level and contributes to variation in drought tolerance among wheat accessions.This insertion contains two MYB cis-regulatory elements(CREs)that can be directly bound by the MYB transcription activator,TaMYBL1,thereby leading to increased TaNAC071-A expression and plant drought tolerance.Importantly,introgression of this 108-bp insertion allele,TaNAC071-AIn-693,into drought-sensitive cultivars could improve their drought tolerance,demonstrating that it is a valuable genetic resource for wheat breeding.Taken together,our findings highlight a major breakthrough in determining the genetic basis underlying phenotypic variation in wheat drought tolerance and showcase the potential of exploiting CRE-containing indels for improving important agronomical traits.Hude Mao Shumin Li Bin Chen Chao Jian Fangming Mei Yifang Zhang Fangfang Li Nan Chen Tian Li Linying Du Li Ding Zhongxue Wang Xinxiu Cheng Xiaojing Wang Zhensheng Kang 2022Molecular Plant2022,15,2:9
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