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498篇 您的检索式:作者名="Samuels B"
    题名 作者 年代 出处 被引量
1Gastric mucin expression in Helicobacter pylori-related, nonsteroidal anti-inflammatory drug-related and idiopathic ulcers显示文摘AIM: To determine the pattern of secreted mucin expression in Helicobacter pylori (H. pylori)-related, nonsteroidal anti-inflammatory drug (NSAID)-related and idiopathic gastric ulcers. METHODS: We randomly selected 92 patients with H. pylori-associated (n = 30), NSAID-associated (n = 18), combined H. pylori and NSAID-associated gastric ulcers (n = 24), and patients with idiopathic gastric ulcers (n = 20). Immunohistochemistry for T-cell CD4/CD8, andfor mucin 5AC (MUC5AC) and mucin 6 (MUC6), was performed on sections of the mucosa from the ulcer margin. Inflammation score was assessed according to the Sydney system. RESULTS: MUC5AC was expressed on the surface epithelium (98.9%) and neck glands (98.9%) with minimal expression in the deep glands (6.5%). MUC6 was strongly expressed in the deep glands (97.8%), variable in the neck glands (19.6%) and absent in the surface epithelium (0%). The pattern of mucin expression in idiopathic ulcer margins was not different from the expression in ulcers associated with H. pylori, NSAIDs, or combined H. pylori and NSAIDs. CD4/CD8 ratio was higher in H. pylori-positive patients (P = 0.009). Idiopathic ulcers are associated with hospitalized patients and have higher bleeding and mortality rates. CONCLUSION: Idiopathic ulcers have a unique clinical profile. Gastric mucin expression in idiopathic gastric ulcers is unchanged compared with H. pylori and/or NSAID-associated ulcers.Doron Boltin Marisa Halpern Zohar Levi Alex Vilkin Sara Morgenstern Samuel B Ho Yaron Niv 2012World Journal of Gastroenterology2012,18,33:5
2Membrane-bound mucins and mucin terminal glycans expression in idiopathic or Helicobacter pylori, NSAID associated peptic ulcers显示文摘AIM:To determine the expression of membrane-bound mucins and glycan side chain sialic acids in Helicobacter pylori(H.pylori)-associated,non-steroidal inflammatory drug(NSAID)-associated and idiopathic-gastric ulcers.METHODS:We studied a cohort of randomly selected patients with H.pylori(group 1,n=30),NSAID(group 2,n=18),combined H.pylori and NSAID associated gastric ulcers(group 3,n=24),and patients with idiopathic gastric ulcers(group 4,n=20).Immunohistochemistry for MUC1,MUC4,MUC17,and staining for Erythrina cristagalli agglutinin and Sambucus nigra agglutinin(SNA)lectins was performed on sections from the ulcer margins.RESULTS:Staining intensity of MUC17 was higher in H.pylori ulcers(group 1)than in idiopathic ulcers(group4),11.05±3.67 vs 6.93±4.00 for foveola cells,and10.29±4.67 vs 8.00±3.48 for gland cells,respectively(P<0.0001).In contrast,MUC1 expression was higher in group 4 compared group 1,9.89±4.17 vs 2.93±5.13 in foveola cells and 7.63±4.60 vs 2.57±4.50 for glands,respectively(P<0.0001).SNA lectin staining was increased in group 4,in parallel to elevated MUC1expression,indicating more abundantα2-6 sialylation in that group.CONCLUSION:Cytoplasmic MUC17 staining was sig-nificantly decreased in the cases with idiopathic ulcer.The opposite was observed for both MUC1 and SNA lectin.This observation may reflect important pathogenic mechanisms,since different mucins with altered sialylation patterns may differ in their protection efficiency against acid and pepsin.Yaron Niv Doron Boltin Marisa Halpern Miriam Cohen Zohar Levi Alex Vilkin Sara Morgenstern Vahig Manugian Erica St Lawrence Pascal Gagneux Sukhwinder Kaur Poonam Sharma Surinder K Batra Samuel B Ho 2014World Journal of Gastroenterology2014,20,40:5
3Disagreement between symptom-reflux association analysis parameters in pediatric gastroesophageal reflux disease investigation显示文摘AIM: To assess the agreement within 3 commonly used symptom-reflux association analysis (SAA) parameters investigating gastroesophageal reflux disease (GERD) in infants. METHODS: Twenty three infants with suspected GERD were included in this study. Symptom index (SI), Symptom sensitivity index (SSI) and symptom association probability (SAP) related to cough and irritability were calculated after 24 h combined pH/multiple intraluminal impedance (MII) monitoring. Through defined cutoff values, SI, SSI and SAP values are differentiated in normal and abnormal, whereas abnormal values point towards gastroesophageal reflux (GER) as the origin of symptoms. We analyzed the correlation and the concordance of the diagnostic classification of these 3 SAA parameters.RESULTS: Evaluating the GER-irritability association, SI, SSI and SAP showed non-identical classification of normal and abnormal cases in 39.2% of the infants. When irritability was taken as a symptom, there was only a poor inter-parameter association between SI and SSI, and between SI and SAP (Kendall’s tau b = 0.37, P < 0.05; Kendall’s tau b = 0.36, P < 0.05, respectively). Evaluating the GER-cough association, SI, SSI and SAP showed non-identical classification of normal and abnormal cases in 52.2% of the patients. When cough was taken as a symptom, only SI and SSI showed a poor inter-parameter association (Kendall’s tau b = 0.33, P < 0.05). CONCLUSION: In infants investigated for suspected GERD with pH/MII-monitoring, SI, SSI and SAP showed a poor inter-parameter association and important dis-agreements in diagnostic classification. These limitations must be taken into consideration when interpreting the results of SAA in infants.Samuel C Lüthold Mascha K Rochat Peter Bhler 2010World Journal of Gastroenterology2010,16,19:3
4干扰素作用机理和临床应用显示文摘Samuel,B 朱闽 1992美国医学会杂志(中文版)1992,11,4:3
5Corrosion rate determination of rare-earth Mg alloys in a Na_(2)SO_(4)solution by electrochemical measurements and inductive coupled plasma-optical emission spectroscopy显示文摘The corrosion resistance of three Mg alloys containing rare-earth elements(WE43,EV31 and ZE41)was studied and compared to that of two Mg-Al alloys(AZ31 and AZ91)and of pure Mg(99.95 wt.%).Current-voltage curves and electrochemical impedance measurements were performed with rotating disk electrodes in an aerated 0.1 M Na_(2)SO_(4)solution.For all the alloys,it was confirmed that the intermetallic particles acted as local cathodes and that more protective films were formed on the alloys surface by comparison with the pure Mg.Corrosion rates were determined from inductive coupled plasma-optical emission spectroscopy measurements and from the electrochemical measurements.Higher corrosion rates were observed for the rare-earth Mg alloys compared to the AZ series alloys.These data allowed the corrosion mechanisms to be discussed.Samuel Leleu Bertrand Rives Nicolas Causse Nadine Pébère 2019Journal of Magnesium and Alloys2019,7,1:3
6Heat shock protein 90 inhibition by 17-DMAG lessens disease in the MRL/Ipr mouse model of systemic lupus erythematosus显示文摘热吃惊蛋白质 90 的提高的表示(HSP90 ) 在全身的豺狼座 erythematosus (SLE ) 的肾和浆液被发现了病人和 MRL/Mp-Fas lpr /Fas lpr (MRL/lpr ) 自体免疫的老鼠。如果 HSP90 的抑制将在 MRL/lpr 老鼠减少疾病,我们调查了。在在 vivo 的 vitro,有在 IL-6 的有免疫力刺激的显示出的减少的表示以前的 HSP90 禁止者 Geldanamycin 的 mesangial 房间的预告的处理, IL-12 和号码,我们发现当与 C57BL/6 相比鼠标和 MRL/lpr 鼠标与 HSP90 禁止者 17-DMAG 对待时, HSP90 表示在 MRL/lpr 肾被提高。与 17-DMAG 对待的 MRL/lpr 老鼠显示出减少的 proteinuria 并且减少了浆液 anti-dsDNA 抗体生产。Glomerulonephritis 和 glomerular IgG 和 C3 没被 17-DMAG 的管理显著地在 MRL/lpr 影响。17-DMAG 增加了 CD8 + T 房间,减少的双 negative T 房间,减少 CD4/CD8 比率和减少的小囊的 B 房间。这些研究建议 HSP90 可以在调整 T 房间区别和激活起一个作用并且 HSP90 抑制可以在豺狼座减少发炎。Samuel K Shimp III Cristen B Chafin Nicole L Regna Sarah E Hammond Molly A Read David L Caudell Marissa Nichole Rylander Christopher M Reilly 2012Cellular & Molecular Immunology2012,9,3:3
7Biomechanics of posterior shoulder instability-current knowledge and literature review显示文摘Posterior instability of the shoulder is a rare condition and represents about 10% of shoulder instability. It has become more frequently recognized in the last year,even though it is more difficult to diagnose than anterior shoulder instability. As this form of shoulder pathology is somewhat rare,biomechanical knowledge is limited. The purpose of our study was to perform an extensive literature search,including PubMed and Medline,and to give an overview of the current knowledge on the biomechanics of posterior shoulder instability. The Pub Med/Medline databases were utilized,and all articles related to posterior shoulder instability and biomechanics were included to form a comprehensive compilation of current knowledge. A total of 93 articles were deemed relevant according to our inclusion and exclusion criteria. As expected with any newly acknowledged pathology,biomechanical studies on posterior shoulder instability remain limited in the literature. Current biomechanical models are performed in a static manner,which limits their translation for explaining a dynamic pathology. Newer models should incorporate dynamic stabiliza-tion of both the rotator cuff and scapulothoracic joint. There is a current lack of knowledge with regards to the pathomechanism of posterior shoulder instability,with no consensus on appropriate treatment regimens. Further investigation is therefore required at both basic science and clinical levels.Henrik Constantin B?cker Samuel E Galle Mauro Maniglio Melvin Paul Rosenwasser 2018World Journal of Orthopedics2018,9,11:2
8Filtered vacuum arc deposition of semiconductor thin film 显示文摘Boxman R L Samuel G Shalom A B 1995IEEE Trans On Plasma Science1995,23,:2
9Astrocyte elevated gene-1 regulates hepatocellular carcinoma development and progression显示文摘Yoo Byoung Kwon Emdad Luni Su Zao-zhong Villanueva Augusto Chiang Derek Y Mukhopadhyay Nitai D Mills Alan Scott Waxman Samuel Fisher Robert A Llovet Josep M Fisher Paul B Sarkar Devanand 2009Journal of Clinical Investigation2009,,3:2
10Chemical factors for chemical-mechanical and electrochemical mechanical planarization of silver examined using potentiodynamic and impedance measurements 显示文摘SAMUEL B E JENNIFER L H MARIA A D 2005Materials Chemistry and Physics2005,89,23:1
112011 ACCF/AHA/ HRS Focused Update on the Management of Patients With Atrial Fibrillation 显示文摘L Samuel Wann Anne B Curtis F 2011J Am Coil Cardiol2011,57,2:1
12Liver transplantation for hepatitis B Virus-related liver disease: Indications, prevention of rcurrence and results 显示文摘Roche B Samuel D 2003J Hepatol2003,39,11:1
13A standardized method for measuring intraeranial arterial stenosis显示文摘Samuels O B Joseph G J Lynn M J 2000AJNR Am J Neuroradiol2000,21,4:1
14Primary Culture of Human Atrial Myocytes is Associated with the Appearance of Structural and Functional Characteristics of Immature Myocardium显示文摘Agnès Bénardeau Stéphane N. Hatem Catherine Rücker-Martin Sophie Tessier Sylvie Dinanian Jane-Lyse Samuel Edouard Coraboeuf Jean-Jaques Mercadier 1997Journal of Molecular and Cellular Cardiology1997,,5:1
15Evolving strategies to prevent HBV recurrence 显示文摘Roche B Samuel D 2004Liver Transpl2004,10,2:1
16The Trichoderma koningii aggregate species 显示文摘SAMUELS G J DODD S L LU B S 2006Studies in Mycology2006,56,:1
17A novel technique to prepare LiNbO3 at low temperature显示文摘Samuel V Gaikwad A B Jadhav A D 2007Materials Letters2007,61,3:1
18Pulmonary metastases in children and adolescents with well - differentiated thyroid cancer显示文摘Samuel AM Rajashekharrao B Shah DH 1998J Nucl Med1998,39,9:1
19Respiratory syncytial virus in allergic lung inflammation increases muc5ac and Gob-5显示文摘Koichi H Barney SG Samuel B 2004Am Respir Crit Care Med2004,170,:1
20Gnotobiotic zebrafish reveal evolutionarily conserved responses to the gut microbiota显示文摘Rawls R F Samuel B S Gordon J I 2004PNAS2004,101,13:1
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