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253篇 您的检索式:作者名="Stephens A B"
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1Pathogenesis of hepatocarcinogenesis in non-cirrhotic nonalcoholic fatty liver disease:Potential mechanistic pathways显示文摘Although hepatocellular carcinoma(HCC) primarily arises in the background of liver cirrhosis,the development of HCC in nonalcoholic fatty liver disease(NAFLD) without cirrhosis is increasingly recognized. The pathogenesis of NAFLD associated non-cirrhotic HCC is distinct from that of cirrhotic HCC because the metabolic syndrome(MS) along with obesity and insulin resistance(IR) underlie several unique mechanisms that promote tumorigenesis. IR associated with MS,NAFLD,and type 2 diabetes mellitus lead to the release of multiple pro-inflammatory cytokines,including tumor necrosis factor alpha,interleukin-6,leptin and resistin,as well as decreased amounts of adiponectin. These processes favor the development of hepatic steatosis and inflammation within the liver,which precede HCC development. Nevertheless,further investigation is necessary to elucidate the determinants for development of HCC in patients with NAFLD in the absence of cirrhosis.Ryan B Perumpail Andy Liu Robert J Wong Aijaz Ahmed Stephen A Harrison 2015World Journal of Hepatology2015,7,22:6
2Risk for emerging bipolar disorder, variants, and symptoms in children with attention deficit hyperactivity disorder, now grown up显示文摘AIM: To determine the prevalence of bipolar disorder(BD) and sub-threshold symptoms in children with attention deficit hyperactivity disorder(ADHD) through 14 years' follow-up, when participants were between 21-24 years old.METHODS: First, we examined rates of BD type Ⅰ?and Ⅱ diagnoses in youth participating in the NIMH-funded Multimodal Treatment Study of ADHD(MTA). We used the diagnostic interview schedule for children(DISC), administered to both parents(DISC-P) and youth(DISCY). We compared the MTA study subjects with ADHD(n = 579) to a local normative comparison group(LNCG, n = 289) at 4 different assessment points: 6, 8, 12, and 14 years of follow-ups. To evaluate the bipolar variants, we compared total symptom counts(TSC) of DSM manic and hypomanic symptoms that were generated by DISC in ADHD and LNCG subjects. Then we sub-divided the TSC into pathognomonic manic(PM) and non-specific manic(NSM) symptoms. We compared the PM and NSM in ADHD and LNCG at each assessment point and over time. We also evaluated the irritability as category A2 manic symptom in both groups and over time. Finally, we studied the irritability symptom in correlation with PM and NSM in ADHD and LNCG subjects.RESULTS: DISC-generated BD diagnosis did not differ significantly in rates between ADHD(1.89%) and LNCG 1.38%). Interestingly, no participant met BD diagnosis more than once in the 4 assessment points in 14 years. However, on the symptom level, ADHD subjects reported significantly higher mean TSC scores: ADHD 3.0; LNCG 1.7; P < 0.001. ADHD status was associated with higher mean NSM: ADHD 2.0 vs LNCG 1.1; P < 0.0001. Also, ADHD subjects had higher PM symptoms than LNCG, with PM means over all time points of 1.3 ADHD; 0.9 LNCG; P = 0.0001. Examining both NSM and PM, ADHD status associated with greater NSM than PM. However, Over 14 years, the NSM symptoms declined and changed to PM over time(df 3, 2523; F = 20.1; P < 0.0001). Finally, Irritability(BD DSM criterion-A2) rates were significantly higher in ADHD than LNCG(χ2 = 122.2, P < 0.0001), but irritability was associated more strongly with NSM than PM(df 3, 2538; F = 43.2; P < 0.0001).CONCLUSION: Individuals with ADHD do not appear to be at significantly greater risk for developing BD, but do show higher rates of BD symptoms, especially NSM. The greater linkage of irritability to NSM than to PM suggests caution when making BD diagnoses based on irritability alone as one of 2(A-level) symptoms for BD diagnosis, particularly in view of its frequent presentation with other psychopathologies.Ahmed Z Elmaadawi Peter S Jensen L Eugene Arnold Brooke SG Molina Lily Hechtman Howard B Abikoff Stephen P Hinshaw Jeffrey H Newcorn Laurence Lee Greenhill James M Swanson Cathryn A Galanter 2015World Journal of Psychiatry2015,5,4:3
3光动力疗法治疗非小细胞肺癌显示文摘光动力疗法被越来越多地应用于治疗胸部恶性肿瘤。对于早期非小细胞肺癌(如支气管腔内肺癌)、X线检查阴性或同时性原发癌,光动疗法可作为主要治疗手段进行腔内根治性治疗。作为单一根治疗法,光动力疗法是治疗支气管镜可见≤1 cm且无软骨外浸润的肺部肿瘤的最有效方法。对于晚期非小细胞癌患者,光动力治疗可以作为综合根治疗法的一部分,用于减轻阻塞性支气管内病变,增加可手术性或缩小所需手术范围。本文对现有发表的应用光动力疗法治疗至少10例以上非小细胞肺癌病例的研究文献进行综述,提出了光动力疗法应用的治疗建议并进行了总结。Charles B Simone II Joseph S Friedberg Eli Glatstein James P Stevenson Daniel H Sterman Stephen M Hahn Keith A Cengel 袁光金 李金銮 朱宇熹 凌扬 2013国际病理科学与临床杂志2013,33,3:3
4Incidence of kidney stones in kidney transplant recipients:A systematic review and meta-analysis显示文摘AIM To evaluate the incidence and characteristics of kidney stones in kidney transplant recipients. METHODS A literature search was performed using MEDLINE, EMBASE, and Cochrane Database of Systematic Reviews from the inception of the databases through March 2016. Studies assessing the incidence of kidney stones in kidney transplant recipients were included. We applied a randomeffects model to estimate the incidence of kidney stones.RESULTS Twenty one studies with 64416 kidney transplant patients were included in the analyses to assess the incidence of kidney stones after kidney transplantation. The estimated incidence of kidney stones was 1.0%(95%CI: 0.6%-1.4%). The mean duration to diagnosis of kidney stones after kidney transplantation was 28 ± 22 mo. The mean age of patients with kidney stones was 42 ± 7 years. Within reported studies, approximately 50% of kidney transplant recipients with kidney stones were males. 67% of kidney stones were calcium-based stones(30% mixed CaO x/CaP, 27%CaO x and 10%CaP), followed by struvite stones(20%) and uric acid stones(13%).CONCLUSION The estimated incidence of kidney stones in patients after kidney transplantation is 1.0%. Although calcium based stones are the most common kidney stones aftertransplantation, struvite stones(also known as 'infection stones') are not uncommon in kidney transplant recipients. These findings may impact the prevention and clinical management of kidney stones after kidney transplantation.Wisit Cheungpasitporn Charat Thongprayoon Michael A Mao Wonngarm Kittanamongkolchai Insara J Jaffer Sathick Tsering Dhondup Stephen B Erickson 2016World Journal of Transplantation2016,6,4:2
5Measurement and prediction of voltage flicker magnitude and frequency显示文摘Girgis A A Stephens J W Makram E B 1995IEEE Trans on Power Delivery1995,10,3:1
6Chemokine receptors CCR6 and CXCR3 are necessary for CD4 + T cell mediated ocular surface disease in experimen- tal dry eye disease显示文摘TERRY G NIRAL B EUGENE A STEPHEN C CINTIA S 2013PLoS One2013,8,78:1
7Express of a heterolo- gous manganese superoxide dismutase gene in intestinal lactobacilli provides protection against hydrogen peroxide toxicity显示文摘JOSE M B JASON M A STEPHEN L L 2004Appl Envi- ron Microbioi2004,70,8:1
8Mapping Paddy Rice Agriculture in South and Southeast Asia Using Multi-temporal MODIS Images 显示文摘Xiao X M Stephen B A Steve F A 2006Remote Sensing of Environment2006,1,15:1
9Controlled-root formulation for digital phase-locked loops显示文摘Stephens S A Thomas J B 1995IEEE Transactions on Aerospace and Electronic Systems1995,3,1:1
10The effect of temperature varia- tion on spontaneous potential production from explants of brain tissue in culture 显示文摘Cunningham A W B Stephens S G 1962Experientia1962,18,1:1
11Activity and safety of crizotinib in patients with ALK -positive non-small-cell lung cancer: updated results from a phase 1 study显示文摘D Ross Camidge Yung-Jue Bang Eunice L Kwak A John Iafrate Marileila Varella-Garcia Stephen B Fox Gregory J Riely Benjamin Solomon Sai-Hong I Ou Dong-Wan Kim Ravi Salgia Panagiotis Fidias Jeffrey A Engelman Leena Gandhi Pasi A J?nne Daniel B Costa Geoffrey 2012Lancet Oncology2012,,10:1
12Spectrophotometric assay for D-lactate in plasma显示文摘Richard B Stephen A 1980Analytical Biochemistry1980,102,1:1
13SPH for High Velocity Impact Computations显示文摘Gordon R J Robert A S Stephen R B 1996Computer Methods in Applied Mechanics and Engineering1996,139,14:1
14Array feed synthesis for correction of reflector distortion vernier beamsteering 显示文摘STEPHEN J B WILLIAM A I 1998IEEE Transaction on Antennas and Propagation1998,36,10:1
15Controlled-root formulation for digital phase-locked loops显示文摘STEPHENS S A THOMAS J B 1995IEEE Transactions on Aerospace and Electronic Systems1995,31,1:1
16Quantitative experimental study of shear stresses and mixing in progressive flow regimes within annular-flow bioreactors显示文摘Stephen J C Richard A B 2004Chemical Engineering Science2004,59,:1
17Investigation of benzene oxide in bone marrow and other tissues of F344 rats following metabolism of benzene in vitro and in vivo 显示文摘Andrew B L Karen YO C Suramya W Thomas A M Bernard T G Stephen M R 1998Chemical Research in Toxicology1998,11,4:1
18Biological features of genetic immunization显示文摘MICHAEL A B STEPHEN A F 1997Ilserier Sci Ltd1997,15,8:1
19Molecular character- ization of a patient' s small cell carcinoma of the ovary of the hyper- calcemic type显示文摘Stephens B Stephen P A Han H Y 2012J Cancer2012,3,:1
20Merastatic neuroblastoma confined to distant lymph nodes(stage 4N)predicts outcome in patients with stage 4 disease:a study from the International Neuroblastoma Risk Group database显示文摘Morgenstern D A London W B Stephens D 2014J Clin Oncol2014,32,12:1
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