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| 1 | In drug-induced, immune-mediated hepatitis, interleukin-33 reduces hepatitis and improves survival independently and as a consequence of FoxP3+ T-cell activity显示文摘Immune-mediated,drug-induced hepatitis is a rare complication of halogenated volatile anesthetic administration.IL-4-regulated Th2-polarized reactions initiate this type and other types of hepatitis,while the mechanisms that regulate the severity remain elusive.IL-33 is an innate,IL-4-inducing,Th2-polarizing cytokine that has been detected in patients with liver failure and has been associated with upregulated ST2+Foxp3+CD4+CD25+T cells;however,roles for IL-33 in drug-induced hepatitis are unclear.We investigated IL-33 in an anesthetic,immune-mediated hepatitis modeled in BALB/c,IL-33−/−and ST2−/−mice,as well as in patients with anesthetic hepatitis.The hepatic IL-33 and ST2 levels were elevated in BALB/c mice(p<0.05)with hepatitis,and anti-IL-33 diminished hepatitis(p<0.05)without reducing IL-33 levels.The complete absence of IL-33 reduced IL-10(p<0.05)and ST2+Foxp3+CD4+CD25+T cells(p<0.05),as well as reduced the overall survival(p<0.05),suggesting suppressive roles for IL-33 in anesthetic,immune-mediated hepatitis.All of the mice demonstrated similar levels of CD4+T-cell proliferation following direct Tcell receptor stimulation,but we detected splenic IL-33 and ST2-negative Foxp3+CD4+CD25+T cells in ST2−/−mice that developed less hepatitis than BALB/c mice(p<0.05),suggesting that ST2-negative Foxp3+CD4+CD25+T cells reduced hepatitis.In patients,serum IL-33 and IPEX levels were correlated in controls(r2=0.5,p<0.05),similar to the levels in mice,but not in anesthetic hepatitis patients(r2=0.01),who had elevated IL-33(p<0.001)and decreased IPEX(p<0.01).Our results suggest that,in anesthetic,immune-mediated hepatitis,IL-33 does not regulate the CD4+T-cell proliferation that initiates hepatitis,but IL-33,likely independent of ST2,reduces hepatitis via upregulation of Foxp3+CD4+CD25+T cells.Further studies are needed to translate the role of IL-33 to human liver disease. | Merylin Cottagiri Maeva Nyandjo Matthew Stephens Joel J.Mantilla Hirohisa Saito Ian R.Mackay Noel R.Rose Dolores B.Njoku | 2019 | Cellular & Molecular Immunology2019,16,8: | 4 |
| 2 | Structural Investigation of the Binding of 5‐Substituted Swainsonine Analogues to Golgi α‐Mannosidase II显示文摘 | Douglas A.Kuntz ShinichiNakayama KaylaShea HitoshiHori YoshihiroUto HidekoNagasawa David. R.Rose | 2010 | Chem. Eur. J. of Chem. Bio2010,,5: | 2 |
| 3 | Developmental Profile and Mechanisms of GABA-Induced Calcium Signaling in Hippocampal Astrocytes显示文摘γ-氨基丁酸(GABA)是具有双重作用的递质,它在产后发育的第1周对神经元具有兴奋作用,但在成年大脑中是主要的抑制性递质。GABA还能通过与离子型(GABAA)和代谢型(GABAB)受体结合来活化星形胶质细胞,导致胶质细胞钙升高及神经递质释放,GABA在神经元-胶质细胞相互作用中起重要的调节作用。本文采用全细胞膜片钳和比率钙成象分析出生后3-34 d的大鼠海马切片,星形胶质细胞GABAA和GABAB受体活化诱导的钙信号的发育特征及细胞机制。GABAA和GABAB受体都可介导胶质细胞的细胞内钙瞬对升高。在整个发育过程中,GABAA受体活化通过激活电压依赖性钙通道的钙流入引起大多数星形胶质细胞快速的钙瞬变。相反的是,GABAB受体活化导致细胞延迟的钙升高,并且这种作用能被细胞内钙库消耗和持久的异源三聚G蛋白活化所阻滞。GABAB受体介导的钙信号呈现明确的发育规律,即〈10%的星形胶质细胞在出生后3 d或32-34 d有应答,大约60%的星形胶质细胞在出生后11-15 d有应答。本文提示,GABAB受体通过激活G蛋白,诱导细胞内钙库释放钙,导致细胞的钙瞬变。星形胶质细胞中GABAB受体介导的钙信号在出生后海马网络发育完成时优先出现。 | SILKE D.MEIER KARL W.KAFITZ CHRISTINE R.ROSE | 2008 | 神经损伤与功能重建2008,3,6: | 2 |
| 4 | Dietary poorly absorbed, short‐chain carbohydrates increase delivery of water and fermentable substrates to the proximal colon显示文摘 | J. S.BARRETT R. B.GEARRY J. G.MUIR P. M.IRVING R.ROSE O.ROSELLA M. L.HAINES S. J.SHEPHERD P. R.GIBSON | 2010 | Alimentary Pharmacology & Therapeutics2010,,8: | 2 |
| 5 | Structural Investigation of the Binding of 5‐Substituted Swainsonine Analogues to Golgi α‐Mannosidase II显示文摘 | Douglas A.Kuntz ShinichiNakayama KaylaShea HitoshiHori YoshihiroUto HidekoNagasawa David. R.Rose | 2010 | Chem Eur J of Chem Bio2010,,5: | 1 |
| 6 | 评述勘探和生产中估算油气储量和资源量的概率论方法相对于确定论方法的优点显示文摘探明储量是指在其开采中具有高置信度的一类油气资源。投资人、银行家、政府和煤体认为探明储量是石油勘探和生产(E&P)公司的基本财产,探明储量减记,特别是出乎意料的减记,将对这类企业的价值产生不利影响。许多储量减记直接或间接地源于探明储量定义上一个长期的根本性的缺陷:即探明储量是评估者合理地相信未来定会达到或者超过的产量的估计值。然而,由于对合理的确定性没有规定具体的置信水平(概率),且不同的评估者和公司具有不同的标准,探明储量是一个不一致的测度,所以评估者是不必负责任的。这种状况败坏了整个储量评估领域。
探明储量问题只是石油勘探和生产中更大的概念性和程序性问题中的一个方面:即如何最佳地测量和表达被认为可以从勘探和生产公司所拥有的油气井、资产、油田、远景区、产层中可以开采的油气的不确定的数量。传统的方法是确定论的,其中单一数字估计值代表各种不确定的未来油气采收率(探明储量、概略储量和可能储量)的未来产量或未来阶段产量。概率方法的可能可采量范围与其感觉的似然性有关,如今已被勘探和生产公司的勘探部门所广泛采用,而业界的生产/开发部门却迟迟不肯放弃确定论方法的使用。
考虑到概率方法具有六个明显的优点(后面将会述及),很难理解为什么确定论方法会沿用至今,但确有一些实际的原因使得勘探和生产领域的某些部门如会计行业、银行业和金融业、新闻媒体和政府管理和行政人员钟情于使用确定性数值。具有领先地位的专业性勘探和生产学会的联合技术委员会目前正在着手解决这些问题,希望能得到一个改进的更加统一的方法。 | Peter R.Rose 赵洪才(译) 陈钦保(校) | 2007 | 国外油气地质信息2007,,3: | 0 |
| 7 | 石油、天然气勘探商业战略和远景区特征显示文摘引言对于石油天然气行业来说,勘探成功率是企业生存的基础,石油公司必须寻找新的油气田以弥补正在生产的油田产能的枯竭。这种勘探一般不是以勘探远景圈闭为单位,而是以远景区为单位来进行。对于石油公司来说,选择远景区是至关重要的决定。因此,要系统地、连续地评价新的远景区,需要有一套系统的规划和战略。远景区选择的重要性勘探远景区的风险分析和选择,是石油地质学、系统学、经济学的综合,而且还要考虑今后的商业环境以及公司本身的商业经营模式及方向。如果能在新远景区中取得成功,可以直接增加公司的储量。相反,选择了不好的远景区,就要承受以下的惨重打击: | Peter R.Rose 张肖兰 | 2000 | 国外油气勘探2000,12,5: | 0 |