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143篇 您的检索式:作者名="Helmut S"
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1Enhanced expression of interleukin-18 in serum and pancreas of patients with chronic pancreatitis显示文摘AIM: To investigate interleukin-18 (IL-18) in patients with chronic panreatitis (CP). METHODS: We studied 29 patients with CP and 30 healthy controls. Peripheral blood mononuclear cells (PBMC) were isolated and incubated with 50 mmol/L ethanol, lipopolysaccharide (LPS) (doses 25 g/L, 250 g/L, 2500 g/L) and both agents for 24 h. Levels of IL-18 in the supernatants, and levels of IL-18, IL-12, interferon (IFN)-γ and soluble CD14 in the serum were analysed by ELISA technique. Expression of IL-18 in PBMC was investigated by reverse-transcription (RT)-PCR. IL-18 protein levels in CP tissue and in normal pancreas were studied by ELISA technique. IL-18 levels in PBMC and pancreatic tissue were determined by Westernblot. Im-munohistochemistry for pancreatic IL-18 expression was performed. RESULTS: In patients, IL-18 serum levels were signifi-cantly enhanced by 76% (mean: 289.9 ± 167.7 ng/L) compared with controls (mean: 165.2 ± 43.6 ng/L; P < 0.0005). IL-12 levels were enhanced by 25% in patients (18.3 ± 7.3 ng/L) compared with controls (14.7 ± 6.8ng/L, P = 0.0576) although not reaching the statistical significance. IFN-γ and soluble CD14 levels were not in-creased. In vitro, LPS stimulated significantly and dose-dependently IL-18 secretion from PBMC. Incubation with ethanol reduced LPS-stimulated IL-18 secretion by about 50%. The mRNA expression of IL-18 in PBMC and the response of PBMC to ethanol and LPS was similar in CP patients and controls. In PBMC, no significant differences in IL-18 protein levels were detected between patients and controls. IL-18 protein levels were increased in CP tissues compared to normal pancreatic tissues. IL-18 was expressed by pancreatic acinar cells and by infiltrating inflammatory cells within the pancreas. CONCLUSION: IL-18 originates from the chronically inflammed pancreas and appears to be involved in the fibrotic destruction of the organ.Alexander Schneider Stephan L Haas Ralf Hildenbrand Sren Siegmund Iris Reinhard Helmut Nakovics Manfred V Singer Peter Feick 2006World Journal of Gastroenterology2006,12,40:4
2Challenges for land system science显示文摘Mark D.A. Rounsevell Bas Pedroli Karl-Heinz Erb Marc Gramberger Anne Gravsholt Busck Helmut Haberl S?ren Kristensen Tobias Kuemmerle Sandra Lavorel Marcus Lindner Hermann Lotze-Campen Marc J. Metzger David Murray-Rust Alexander Popp Marta Pérez-Soba Anett 2012Land Use Policy2012,,4:2
3Glutathione and its role in cellular functions显示文摘Helmut S 1999Free Radical Biology & Medicine1999,27,:1
4Unstiffened steel plate shear wall performance under cyclic loading显示文摘ADAM S L HELMUT G L P 2000Journal of Structural Engineering2000,126,4:1
5MDCT angiography of the pulmonary arteries: influence of iodine flow concentrationon vesell attenuation and visualization显示文摘Helmut S Hannes AD Gerald AF 2005AJR2005,184,6:1
6MDCT angiography of the pulmonary arteries:influence of iodine flow concentration on vesell attenuation and visualization 显示文摘Helmut S Hannes AD Gerald AF 2005A JR2005,184,6:1
7Infraredspectroscopic investigations of selective catalytic reduction catalysts poisoned with arsenic oxide显示文摘FRIEDERIKE C L HELMUT S HELMUT K 1996Appl Catal B1996,8,24:1
8Development and evaluation of an online CO2 evolution test and a multicomponent biodegradation test system显示文摘Uwe S Peter R Helmut S 2004Applied and environmental microbiology2004,70,8:1
9Human CD4^+ CD25^+ regulatory T cells and infectious tolerance显示文摘Michael S Edga S Helmut J 2004Transplantation2004,77,1:1
10An X-ray photo electron spectroscopy study of oxides of arsenic supported on Ti O2显示文摘FRIEDERIKE C L HELMUT S HELMUT K 1991J Electron Spectrosc1991,57,30:1
11Renin-angiotensin system and atherosclerosis显示文摘Karsten G Helmut D Bernhard S 2004Nephrol Dial Transplant2004,19,:1
12Effect of diabetes on low-erurinary tract symptoms in patients with benign prostatic hyperplasia 显示文摘Martin CM Ludwig M Helmut S 2000J Urol2000,163,:1
13Response of endophytic bacterial communities in potato plant to infection with Erwinia carotovora subsp, atroseptica显示文摘BIRGIT R ULRIKE P HELMUT S 2002Applied and Environment Microbiology2002,,:1
14Enzymology of the degradation of (di)chlorobenzenes by Xanthobacter flavus 14pl显示文摘CLAUDIA S HELMUT G 1997Archives of Microbiology1997,167,6:1
15Life-stage-dependent sensitivity of zebrafish (Danio rerio) to estrogen exposure显示文摘Gerd M Helmut S 2004Comparative Biochemistry and Physiology(Part C)2004,139,13:1
16Chemistry of aiologically important synthetic organoselenium compounds 显示文摘Govindasamy M Wolf Walther D M Helmut S 2001Chem Rev2001,101,7:1
17Parametric airfoils and wings显示文摘HELMUT S 1998Notes on Nu- merical Fluid Mechanics1998,68,:1
18Supercritical water oxidation: state of the art显示文摘Helmut S Johannes A 1999Chem Eng Technol1999,22,11:1
19Up-converting nanoparticles显示文摘Markus H Helmut S 0,,50:1
20Prognostic value of E-cadherin expression in 413 gastric carcinomas显示文摘Helmut E G Wolfram M Ank S 1996Int J Cancer1996,69,:1
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