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347篇 您的检索式:作者名="Luke J"
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1Heme oxygenase system in hepatic ischemia-reperfusion injury显示文摘Hepatic ischemia-reperfusion injury (IRI) limits access to transplantation. Heme oxygenase-1 (HO-1) is a powerful antioxidant enzyme which degrades free heme into biliverdin,free iron and carbon monoxide. HO-1 and its metabolites have the ability to modulate a wide variety of inflammatory disorders including hepatic IRI. Mechanisms of this protective effect include reduction of oxygen free radicals,alteration of macrophage and T cell phenotype. Further work is required to understand the physiological importance of the many actions of HO-1 identified experimentally,and to harness the protective effect of HO-1 for therapeutic potential.James A Richards Stephen J Wigmore Luke R Devey 2010World Journal of Gastroenterology2010,16,48:14
2肌萎缩性侧索硬化蛋白激活小胶质细胞NLRP3炎性小体显示文摘小胶质细胞NLRP3炎性小体激活正在成为神经退行性变过程中神经炎症的关键因素。诸如β-淀粉样蛋白和α-突触核蛋白之类的致病性蛋白质聚集体触发小胶质NLRP3激活,从而导致半胱天冬酶-1激活和IL-1β的分泌。在小鼠肌萎缩性侧索硬化症(ALS)的SOD1G93A模型中,半胱天冬酶-1和IL-1β均促进疾病进展,提示小胶质NLRP3在该进程中发挥作用。然而先前的研究表明,SOD1G93A小鼠小胶质细胞不表达NLRP3,SOD1G93A蛋白在小胶质细胞中产生独立于NLRP3的IL-1β。本研究论证了使用Nlrp3-GFP基因敲入小鼠,在SOD1G93A小鼠中小胶质细胞表达NLRP3。本研究显示聚集和可溶性SOD1G93A均可激活小鼠原代小胶质细胞中的炎性小体,导致半胱天冬酶-1和IL-1β裂解,ASC斑点形成以及呈剂量和时间依赖性的IL-1β分泌。重要的是,SOD1G93A无法从缺乏Nlrp3的小胶质细胞或者用特异性NLRP3抑制剂MCC950预处理的小胶质细胞中诱导IL-1β分泌,从而证实NLRP3是介导SOD1诱导的小胶质细胞IL-1β分泌的关键炎症小体复合物。在TDP-43Q331K ALS小鼠模型中也观察到小胶质NLRP3上调,TDP-43野生型和突变蛋白亦可以NLRP3依赖性的方式激活小胶质炎性小体。从机制上讲,本研究确定了活性氧簇和ATP的生成是SOD1G93A介导的NLRP3激活所需的关键事件。总之,本研究的数据表明ALS小胶质细胞表达NLRP3,而病理ALS蛋白激活小胶质NLRP3炎性小体。因此,NLRP3抑制可能是阻止小胶质细胞神经炎症和ALS疾病进展的潜在治疗方法。Vandana Deora John D Lee Eduardo AAlbornoz Luke McAlary Cyril J Jagaraj Avril A B Robertson Julie D Atkin Matthew A Cooper Kate Schroder Justin J Yerbury Richard Gordon Trent MWoodruff 杜一星(编译) 2020神经损伤与功能重建2020,15,9:13
3Refining pathological evaluation of neoadjuvant therapy for adenocarcinoma of the esophagus显示文摘AIM:To assess tumour regression grade(TRG)and lymph node downstaging to help define patients who benefit from neoadjuvant chemotherapy.METHODS:Two hundred and eighteen consecutive patients with adenocarcinoma of the esophagus or gastro-esophageal junction treated with surgery alone or neoadjuvant chemotherapy and surgery between 2005and 2011 at a single institution were reviewed.Triplet neoadjuvant chemotherapy consisting of platinum,fluoropyrimidine and anthracycline was considered for operable patients(World Health Organization performance status≤2)with clinical stage T2-4 N0-1.Response to neoadjuvant chemotherapy(NAC)was assessed using TRG,as described by Mandard et al.In addition lymph node downstaging was also assessed.Lymph node downstaging was defined by cN1 at diagnosis:assessed radiologically(computed tomography,positron emission tomography,endoscopic ultrasonography),then pathologically recorded as N0 after surgery;ypN0 if NAC given prior to surgery,or pN0if surgery alone.Patients were followed up for 5 years post surgery.Recurrence was defined radiologically,with or without pathological confirmation.An association was examined between t TRG and lymph node downstaging with disease free survival(DFS)and a comprehensive range of clinicopathological characteristics.RESULTS:Two hundred and eighteen patients underwent esophageal resection during the study interval with a mean follow up of 3 years(median follow up:2.552,95%CI:2.022-3.081).There was a 1.8%(n=4)inpatient mortality rate.One hundred and thirty-six(62.4%)patients received NAC,with 74.3%(n=101)of patients demonstrating some signs of pathological tumour regression(TRG 1-4)and 5.9%(n=8)having a complete pathological response.Forty four point one percent(n=60)had downstaging of their nodal disease(cN1 to ypN0),compared to only 15.9%(n=13)that underwent surgery alone(pre-operatively overstaged:cN1 to pN0),(P<0.0001).Response to NAC was associated with significantly increased DFS(mean DFS;TRG 1-2:5.1years,95%CI:4.6-5.6 vs TRG 3-5:2.8 years,95%CI:2.2-3.3,P<0.0001).Nodal down-staging conferred a significant DFS advantage for those patients with a poor primary tumour response to NAC(median DFS;TRG 3-5 and nodal down-staging:5.533 years,95%CI:3.558-7.531 vs TRG 3-5 and no nodal down-staging:1.114 years,95%CI:0.961-1.267,P<0.0001).CONCLUSION:Response to NAC in the primary tumour and in the lymph nodes are both independently associated with improved DFS.Fergus Noble Luke Nolan Adrian C Bateman James P Byrne Jamie J Kelly Ian S Bailey Donna M Sharland Charlotte N Rees Timothy J Iveson Tim J Underwood Andrew R Bateman 2013World Journal of Gastroenterology2013,19,48:4
4Obesity-induced sperm DNA methylation changes at satellite repeats are reprogrammed in rat offspring显示文摘现在有充分证据,对在使肥沃的后代显型的父亲的贡献多于公平 DNA。然而,这 nongenetic 继承的身份和机制糟糕被理解。在这个研究区域的更重要的问题之一是:在精子 DNA methylation 的变化为后代有 phenotypic 后果吗?我们以前报导了肥胖的雄的老鼠的后代与控制相比改变了葡萄糖新陈代谢并且这效果通过 nongenetic 工具被继承。这里,我们用一样的协议在一个新队描述调查进精子 DNA methylation。在高脂肪的节食的雄的老鼠是 30% 比喂控制的男性重在交配的时候(16-19 星期旧, n = 14/14 ) 。一小(0.25%) 在全部的 5-methyl-2 ’ 增加; -deoxycytidine 被液体层析双人脚踏车团 spectrometry 在肥胖的老鼠精子检测。那 retrotransposon DNA methylation 在精子说的有定序的充实蛋白质的染色体(MBD-Seq ) 和 pyrosequencing 揭示了的 methyl-CpG 绑定领域的染色体的重复部分的检查没被肥胖,而是 methylation 在整个染色体在卫星重复影响被增加。然而,从男 27-week-old 后代从的肌肉,肝,和精子的检查肥胖并且控制父亲(从 8 生的 n = 的两个组) 表明正常 DNA methylation 层次在后代开发期间被恢复。而且,没有变化在肥胖的老鼠精子在三个 genomic 印记被发现。我们的调查结果为 transgenerational epigenetic reprogramming 有含意。他们建议 postfertilization 机制为使导致 environmentally 的 DNA methylation 在精子房间改变的一些正常化存在。Neil A Youngson Virginie Lecomte Christopher A Maloney Preston Leung Jia Liu Luke B Hesson Fabio Luciani Lutz Krause Margaret J Morris 2016Asian Journal of Andrology2016,18,6:3
5Entry of hepatitis B and C viruses — recent progress and future impact显示文摘Thomas F Baumert Luke Meredith Yi Ni Daniel J Felmlee Jane A McKeating Stephan Urban 2013Current Opinion in Virology2013,,:3
6Ultrafast photonic PCR显示文摘Nucleic acid amplification and quantification via polymerase chain reaction(PCR)is one of the most sensitive and powerful tools for clinical laboratories,precision medicine,personalized medicine,agricultural science,forensic science and environmental science.Ultrafast multiplex PCR,characterized by low power consumption,compact size and simple operation,is ideal for timely diagnosis at the point-of-care(POC).Although several fast/ultrafast PCR methods have been proposed,the use of a simple and robust PCR thermal cycler remains challenging for POC testing.Here,we present an ultrafast photonic PCR method using plasmonic photothermal light-to-heat conversion via photon–electron–phonon coupling.We demonstrate an efficient photonic heat converter using a thin gold(Au)film due to its plasmon-assisted high optical absorption(approximately 65%at 450 nm,the peak wavelength of heat source light-emitting diodes(LEDs)).The plasmon-excited Au film is capable of rapidly heating the surrounding solution to over 150℃ within 3 min.Using this method,ultrafast thermal cycling(30 cycles;heating and cooling rate of 12.7960.93℃ s^(-1) and 6.660.29℃ s^(-1),respectively)from 55℃(temperature of annealing)to 95℃(temperature of denaturation)is accomplished within 5 min.Using photonic PCR thermal cycles,we demonstrate here successful nucleic acid(λ-DNA)amplification.Our simple,robust and low cost approach to ultrafast PCR using an efficient photonic-based heating procedure could be generally integrated into a variety of devices or procedures,including on-chip thermal lysis and heating for isothermal amplifications.Jun Ho Son Byungrae Cho SoonGweon Hong Sang Hun Lee Ori Hoxha Amanda J Haack Luke P Lee 2015Light(Science & Applications)2015,4,1:2
7The impact of ipsilateral testicular atrophy on semen quality and sperm DNA fragmentation response to varicocele repair显示文摘Varicoceles adversely impact semen quality and sperm DNA fragmentation,which typically improve with surgical repair.Some men with varicoceles have ipsilateral testicular atrophy due to damage from the varicocele.This study assessed semen quality and the sperm DNA fragmentation index(DFI)response to varicocele repair in men with ipsilateral testicular atrophy(TA)versus men with no testicular atrophy(NTA).Semen parameter values and DFI in both groups were compared preoperatively and postoperatively.The Mann-Whitney U test and the Wilcoxon signed-rank test were used where appropriate.There were 20 men in the TA group and 121 men in the NTA group with no difference in age,varicocele grade,or preoperative semen parameter values between the two groups.The NTA group had a higher preoperative DFI than the TA group.Both groups showed improvement in semen quality postoperatively,only the TA group showed a significant improvement in DFI,whereas the NTA group showed significant improvements in several parameter values and DFI.The change from preoperative to postoperative parameter values when comparing the two groups revealed a difference in total sperm motile count and DFI,with a larger mean improvement in the NTA group than in the TA group.Both TA and NTA groups showed improved semen quality and DFI after varicocele repair,but the NTA group had more improvement than the TA group.However,only total motile count(TMC)and DFI had a significantly greater mean change in preoperative to postoperative response in the NTA group than in the TA group.Parviz K Kavoussi Natasha Abdullah Melissa S Gilkey Caitlin Hunn G Luke Machen Shu-Hung Chen Keikhosrow M Kavoussi Amy Esqueda J David Wininger Shahryar K Kavoussi 2021Asian Journal of Andrology2021,23,2:2
8Effects of antiagglomerants on the interactions between hydrate particles显示文摘Mark R A J Dalton Y Luke H 2007American Institute of Chemical Engineers2007,54,2:1
9Oral treatment of chickens with Lactobacillus reuteri LM1 reduces Brachyspira pilosicoli-induced pathology显示文摘Luke J M Monika A T Alejandro N 2013Journal of Medical Microbiolo- gy2013,62,2:1
1018O stable isotope labeling in MS-based proteomics显示文摘Ye X Luke B Andresson T Blonder J 0,,02:1
11Influenza virus infection increases p53 activity:role of p53 in cell death and viral replication显示文摘Turpin E Luke K Jones J 2005J Virol2005,79,:1
12Increased viable osteoblast density in the presence of nanophase compared to conventional alumina and titania particles显示文摘Luke G Gutwein K Thomas J 2004Biomaterials2004,25,18:1
13Latching ultra-low power MEMS shock sensors for acceleration monitoring 显示文摘Currano Luke J Bauman Scott 2008Sensors and Actuators A : Physical2008,147,:1
14A theoretical model for gas adsorption-induced coal swelling显示文摘PAN Z J LUKE D C 2007International Journal of Coal Geology2007,69,4:1
15Measurement of gaseous and aqueous trace formaldehyde:Revisiting the pentanedione reaction and field applications显示文摘Li J Dasgupta P K Luke W 2005Anal Chim Acta2005,531,:1
16Theoretical study of the carbenoid CH2FLi 显示文摘Luke B T Pople J A 1983Chem Phys Lett1983,102,:1
17Reconstruction of skull base and fronto-orbital defects following tumor resection显示文摘LAEDRACH K LUKES A RAVEH J 2007Skull Base2007,17,1:1
18Towards a critical, worldly, literacy 显示文摘LUKE A ELKINS J 2002Journal of Adolescent & Adult Literacy2002,45,15:1
19Stromelysin-1 and gelatinase A are upregulated before TNF-a in LPS-stimulated neuroin ammation显示文摘Mun-Bryce S Lukes A Wallace J 2002Brain Res2002,33,9:1
20Vaccines for pandemic influenza 显示文摘LUKE C J SUBBARAO K 2006Emerg Infect Dis2006,12,1:1
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