|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Hydrogen sutfide protects colon cancer cells from chemopreventative agent β-phenylethyl isothiocvanate induced apoptosis显示文摘AIM: Hydrogen sulfide (H2S) is a prominent gaseous constituent of the gastrointestinal (GI) tract with known cytotoxic properties. Endogenous concentrations of H2S are reported to range between 0.2-3.4 mmol/L in the GI tract of mice and humans. Considering such high levels we speculate that, at non-toxic concentrations, H2S may interact with chemical agents and alter the response of colonic epithelium cells to such compounds. The GI tract is a major site for the absorption of phytochemical constituents such as isothiocyanates, flavonoids, and carotenoids, with each group having a role in the prevention of human diseases such as colon cancer. The chemopreventative properties of the phytochemical agent β-phenyethyl isothiocyanate (PEITC) are well recognized. However, little is currently known about the physiological or biochemical factors present in the GI tract that may influence the biological properties of ITCs. The current study was undertaken to determine the effects of H2S on PEITC mediated apoptosis in colon cancer cells.METHODS: Induction of apoptosis by PEITC in human colon cancer HCT116 cells was assessed using classic apoptotic markers namely SubG1 population analysis,caspase-3 like activity and nuclear fragmentation and condensation coupled with the MTT (3-(4,5-dimethylthiazol2-yl)-2,5-diphenyl tetrasodium bromide) viability assay and LDH leakage.RESULTS: PEITC significantly induced apoptosis in HGT116cells as assessed by SubG1 population formation, nuclear condensation, LDH leakage and caspase-3 activity after 24 h, these data being significant from control groups (P<0.01). In contrast, co-treatment of cells with physiological concentrations of H2S (0.1-1 mmol/L) prevented PEITC mediated apoptosis as assessed using the parameters described.CONCLUSION: PEITC effectively induced cell death in the human adenocarcinoma cell line HCT116 in vitro through classic apoptotic mechanisms. However, in the presence of H2S, apoptosis was abolished. These data suggest that H2S may play a significant role in the response of colonic epithelial cells to beneficial as well as toxic agents present within the GI tract. | Peter Rose Philip K Moore Shen Han Ming Ong Choon Nam Jeffrey S Armstrong Matt Whiteman | 2005 | World Journal of Gastroenterology2005，11，26： | 13 |
| 2 | 大气二氧化氮与每日总死亡率、心血管和呼吸系统疾病死亡率的短期关联:398个城市的多中心分析显示文摘目的:采用统一的分析方案,评估全球多个国家/地区的二氧化氮(NO_(2))与总死亡率、心血管和呼吸系统疾病死亡率之间的短期关联。研究设计:采用两阶段的时间序列分析方法、过度离散的广义线性模型和多水平meta分析。研究地点:22个低到高收入国家/地区的398个城市。主要结局指标:1973—2018年逐日总死亡人数(6280万人)、心血管疾病死亡人数(1970万人)和呼吸系统疾病死亡人数(550万人)。结果:平均而言,NO_(2)浓度在滞后1天(前1天)每增加10μg/m^(3),会导致总死亡率、心血管和呼吸系统疾病死亡率分别增加0.46%(95%可信区间0.36%~0.57%)、0.37%(0.22%~0.51%)、0.47%(0.21%~0.72%)。在对共污染物(PM_(10)、PM_(2.5)、臭氧、二氧化硫和一氧化碳)进行调整后,这些关联仍然很稳定。所有3种死因的暴露-反应曲线几乎是线性的,没有明显的阈值。在398个城市中,可归因于高过假定零水平的NO_(2)浓度造成的死亡比例为1.23%(95%可信区间0.96%~1.51%)。结论:这项多中心研究提供了关于NO_(2)短期暴露与总死亡率、心血管和呼吸系统死亡风险之间的独立和线性关联的关键证据,说明通过加强NO_(2)的控制和监管限制标准,可获得人群水平的健康收益。 | 孟夏 刘聪(校) 陈仁杰 郑湃(译) 阚海东(校) Francesco Sera Ana Vicedo-Cabrera Ai Milojevic Maria Guo Yuming Tong Shilu Micheline de Sousa Zanotti Stagliorio Coelh Paulo Hilario Nascimento Saldiva Eric Lavigne Patricia Matus Correa Nicolas Valdes Ortega Samuel Osorio Garcia Jan Kysely Ales Urban Hans Orru Marek Maasikmets Jouni J K Jaakkola Niilo Ryti Veronika Huber Alexandra Schneider Klea Katsouyanni Antonis Analitis Masahiro Hashizume Yasushi Honda Chris Fook Sheng Ng Baltazar Nunes João Paulo Teixeira Iulian Horia Holobaca Simona Fratianni Ho Kim Aurelio Tobias Carmeníniguez Bertil Forsberg ChristoferÅström Martina S Ragettli Yue-Liang Leon Guo Shih-Chun Pan Shanshan Li Michelle L Bell Antonella Zanobetti Joel Schwartz Tangchun Wu Antonio Gasparrini | 2021 | 英国医学杂志中文版2021，24，8： | 7 |
| 3 | 4-1BB signaling activates glucose and fatty acid metabolism to enhance CD8^(+) T cell proliferation显示文摘4-1BB(CD137)is a strong enhancer of the proliferation of CD8^(+)T cells.Since these cells require increased production of energy and biomass to support their proliferation,we hypothesized that 4-1BB signaling activated glucose and fatty acid metabolism.We found that treatment with agonistic anti-4-1BB mAb promoted the proliferation of CD8^(+)T cells in vitro,increasing their size and granularity.Studies with a glycolysis inhibitor and a fatty acid oxidation inhibitor revealed that CD8^(+)T cell proliferation required both glucose and fatty acid metabolism.Anti-4-1BB treatment increased glucose transporter 1 expression and activated the liver kinase B1(LKB1)-AMP-activated protein kinase(AMPK)-acetyl-CoA carboxylase(ACC)signaling pathway,which may be responsible for activating the metabolism of glucose and fatty acids.We also examined whether blocking glucose or fatty acid metabolism affected cell cycle progression and the anti-apoptotic effect of 4-1BB signaling.The increase of anti-apoptotic factors and cyclins in response to anti-4-1BB treatment was completely prevented by treating CD8^(+)T cells with the fatty acid oxidation inhibitor,etomoxir,but not with the glycolysis inhibitor,2-deoxy-D-glucose.We conclude that anti-4-1BB treatment activates glucose and fatty acid metabolism thus supporting the increased demand for energy and biomass,and that fatty acid metabolism plays a crucial role in enhancing the cell cycle progression of anti-CD3-activated CD8^(+)T cells in vitro and the anti-apoptotic effects of 4-1BB signaling on these cells. | Beom K Choi Do Y Lee Don G Lee Young H Kim Seon-Hee Kim Ho S Oh Chungyong Han Byoung S Kwon | 2017 | Cellular & Molecular Immunology2017，14，9： | 6 |
| 4 | Relationship between diabetes mellitus and cataract in Hungary显示文摘AIM:To examine the coexistence of diabetes mellitus(DM)and cataract in Hungary.The effects of DM on the cataract surgical results were also in the focus of analysis.METHODS:Statistical data analysis of the results of the Rapid Assessment of Avoidable Blindness with Diabetic Retinopathy(RAAB+DR)module conducted in Hungary in 2015.This cross-sectional,population-based,national survey included 3523 people aged 50 years and over.Participants of the survey were examined on-site.Visual acuity,main cause for visual impairment(using direct and indirect ophthalmoscopes),in case of best corrected visual acuity(BCVA)≤0.5 and blood glucose level(random test with glucometer)were examined.RESULTS:The prevalence of cataract was 23.4%,and DM was 20.0%.The occurrence of cataract steadily increased with age.Among the examined participants with DM,the prevalence of cataract was significantly(P=0.012)higher(+35%)than that in non-diabetic subjects(29.5%vs 21.8%).Following aging(OR=15.2%,P<0.001),DM proved to be the most independent influencing risk factor(OR=49.9%,P<0.001).The presence of DM was neither an influencing factor for complications of cataract surgery,nor for postoperative visual acuity.CONCLUSION:DM appears to be one of the main risk factors for developing cataract.Other risk factors,such as age,sex and environment also play an influencing role.Diabetes does not seem to affect the occurrence of cataract surgical complications. | Anita Pék Dorottya Szabó Gábor LászlóSándor Gábor Tóth András Papp Zoltán Zsolt Nagy Hans Limburg János Németh | 2020 | International Journal of Ophthalmology(English edition)2020，13，5： | 2 |
| 5 | Mechanical properties and solid lubricant wear behavior of Al/Al2O3/C hybrid metal matrix composites fabricated by squeeze casting method 显示文摘 | Song J I Han K S | 1997 | J Comp Mater1997，31，4： | 2 |
| 6 | A high efficiency ZVS PWM asymmetrical half bridge converter for plasma display panel sustaining power module显示文摘 | Han S K Moon G W Youn M J | 2004 | 35th Annual Power Electronics Specialists Conference Aachen Germany2004，，： | 1 |
| 7 | Paternal smoking, genetic polyrnorphisms in CYP1A1 and childhood leukemia risk 显示文摘 | Lee K M Ward M H Han S | 2009 | Leukemia Res2009，33，2： | 1 |
| 8 | Improved enzymatic hydrolysis yield of rice straw using electron beam irradiation pretreatment显示文摘 | Bak J S Ko J K Han Y H | 2009 | Bioresource Technology2009，100，： | 1 |
| 9 | Sorption of the herbicide mefenacet in soils显示文摘 | Lu Y Han S K Zhang C D | 2001 | Environmental Contamination and Toxicology2001，66，1： | 1 |
| 10 | Medullary thyroid carcinoma: comparison with papillary thyroid carcinoma and application of current sonographic cdteria显示文摘 | Lee S Shin J H Han B K | 2010 | AJR Am J Roentgenol2010，194，4： | 1 |
| 11 | P16INK4a protein expression is associat-ed with poor survival of breast cancer patients after CMF chemotherapy显示文摘 | Han S Ahn SH Park K | 2001 | Breast Cancer Res Treat2001，70，3： | 1 |
| 12 | Surface graft copolymerization induced adhesion of polyaniline film to poly(trafluoroethylene) film and copper foil显示文摘 | Ma Z H Han H S Tan K L | 1999 | Eur Polym J1999，35，： | 1 |
| 13 | Fabrication of new nanoporous carbons through silica templates and their application to the adsorption of bulky byes显示文摘 | S HAN K SOHN T HYEON | 2000 | Chem Mater2000，12，： | 1 |
| 14 | Association between hepatitis B virus infection and HLA-DR type in Korea显示文摘 | Ahn S H Han K H Park J Y | 2000 | J Hepat2000，31，6： | 1 |
| 15 | Phytotoxic and antimicrobial activity of volatile constituents of Artemisia princops var orientalis显示文摘 | Yun K W Kil B S Han D M | 1993 | J Chem Ecol1993，19，1： | 1 |
| 16 | Studies on fire behaviour of video compact disc (VCD) materials with a cone calorimeter 显示文摘 | Chow W K Han S S | 2004 | Polymer Testing2004，23，： | 1 |
| 17 | Microstructure and hydrogenation behavior of ball-milled and melt-spun Mg-10Ni-2Mm alloys 显示文摘 | WU Y HAN W ZttOU S X LOTOTSKY M V SOLBERG J K YARTYS V A | 2008 | J Alloys Compd2008，466，12： | 1 |
| 18 | Hydrogen storage in Ni nanoparticle-dispersed multiwalled carbon nanotuhes 显示文摘 | Kim H S Lee H Han K S | 2005 | Journal of Physical Chemistry B2005，109，： | 1 |
| 19 | Heat transfer enhancement inchannels with turbulence promoters显示文摘 | Han J C Park J S Lei C K | 1985 | Journal of Engi-neering for Gas Turbines and Power1985，107，3： | 1 |
| 20 | The porcine reproductive and respiratory syndrome virus nsp2 cysteine protease domain possesses both trans- and cis-cleavage activities 显示文摘 | HAN J RUTHERFORD M S FAABERG K S | 2009 | J Virol2009，83，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员