Research Topics
Species | Sebastian MuellerSummaryAffiliation: University of Heidelberg Country: Germany Publications
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Detail Information
Publications
Activation of iron regulatory protein-1 by oxidative stressSebastian Mueller
Department of Internal Medicine IV, University of Heidelberg, 69115 Heidelberg, Germany
Methods Enzymol 348:324-37. 2002
IRP1 activation by extracellular oxidative stress in the perfused rat liverS Mueller
Department of Internal Medicine IV, University of Heidelberg, Bergheimer Str 58, 69115, Germany
J Biol Chem 276:23192-6. 2001..It also provides a link between iron metabolism and the inflammatory response, as H(2)O(2) is a major product of the oxidative burst of neutrophils and macrophages...
Increased liver stiffness in alcoholic liver disease: differentiating fibrosis from steatohepatitisSebastian Mueller
Department of Medicine and Center for Alcohol Research, Salem Medical Center, University of Heidelberg, Zeppelinstrasse 11 33, 69121 Heidelberg, Germany
World J Gastroenterol 16:966-72. 2010..To test if inflammation also interferes with liver stiffness (LS) assessment in alcoholic liver disease (ALD) and to provide a clinical algorithm for reliable fibrosis assessment in ALD by FibroScan (FS)...
Sensitive and real-time determination of H2O2 release from intact peroxisomesSebastian Mueller
Department of Internal Medicine IV, University of Heidelberg, Bergheimer Strasse 58, 69115 Heidelberg, Germany
Biochem J 363:483-91. 2002..The experimental approach offers new possibilities for functionally studying H(2)O(2) metabolism, substrate transport and turnover in peroxisomes of eukaryotic cells...
Myeloperoxidase-derived hypochlorous acid antagonizes the oxidative stress-mediated activation of iron regulatory protein 1Sebine Mütze
Department of Internal Medicine IV, University of Heidelberg, Bergheimer Strasse 58, 69115 Heidelberg, Germany
J Biol Chem 278:40542-9. 2003..Our findings suggest that HOCl can modulate signaling pathways in a concerted action with H2O2. The GOX/CAT/MPO system provides a valuable tool for studying the regulatory function of HOCl...
The GOX/CAT system: a novel enzymatic method to independently control hydrogen peroxide and hypoxia in cell cultureS Mueller
Department of Medicine and Center for Alcohol Research, Liver Disease and Nutrition, Salem Medical Center, University of Heidelberg, Heidelberg, Germany
Adv Med Sci 54:121-35. 2009..Several applications are discussed in detail to demonstrate the technical requirements and potentials. In addition, simplified protocols are presented for cell or molecular biology labs without dedicated biophysical equipment...
Alcoholic liver disease and hepatitis C: a frequently underestimated combinationSebastian Mueller
Department of Medicine and Center for Alcohol Research, Liver Disease and Nutrition, University of Heidelberg, Zeppelinstrasse 11 33, 69121 Heidelberg, Germany
World J Gastroenterol 15:3462-71. 2009..For now, it can be generally concluded that HCV-infected patients should abstain from alcohol and alcoholics should be encouraged to participate in detoxification programs...
Iron regulatory protein 1 as a sensor of reactive oxygen speciesSebastian Mueller
Department of Internal Medicine, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
Biofactors 24:171-81. 2005..These molecular insights open up new therapeutic strategies for the clinical management of chronic inflammation and drug-mediated cardiotoxicity...
Sustained hydrogen peroxide induces iron uptake by transferrin receptor-1 independent of the iron regulatory protein/iron-responsive element networkBill Andriopoulos
Department of Internal Medicine, Salem Medical Center, University of Heidelberg, Zeppelinstrasse 11 33, 69121 Heidelberg, Germany
J Biol Chem 282:20301-8. 2007..Our results suggest a novel mechanism of iron accumulation by sustained H(2)O(2), based on the translational activation of TfR1, which could provide an important (patho) physiological link between iron metabolism and inflammation...
Extracellular H2O2 and not superoxide determines the compartment-specific activation of transferrin receptor by iron regulatory protein 1Antoni Sureda
Medical Department, University of Heidelberg, Im Neuenheimer Feld, 410, 69120, Heidelberg, Germany
Free Radic Res 39:817-24. 2005..Our findings confirm that extracellular H2O2 determines the functionality of the IRP1 cluster and its downstream targets while the reactivity of O2*- is limited to its compartment of origin...
Ethanol-mediated carcinogenesis in the human esophagus implicates CYP2E1 induction and the generation of carcinogenic DNA-lesionsGunda Millonig
Department of Medicine, Salem Medical Centre and Centre of Alcohol Research, Liver Disease and Nutrition, University of Heidelberg, Heidelberg, Germany
Int J Cancer 128:533-40. 2011..Our data demonstrate for the first time an induction of CYP2E1 in the esophageal mucosa by ethanol in a dose dependent manner in man and may explain, at least in part, the generation of carcinogenic DNA lesions in this target organ...
Liver-homing of purified glucose oxidase: a novel in vivo model of physiological hepatic oxidative stress (H2O2)Daniel Rost
Department of Medicine, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
J Hepatol 46:482-91. 2007..Reactive oxygen species (ROS), such as H2O2, are implicated in normal and pathological liver function. However, due to the lack of suitable in vivo models of ROS generation the (patho) physiological relevance of H2O2 remains controversial...
Liver stiffness is directly influenced by central venous pressureGunda Millonig
Department of Medicine and Center for Alcohol Research, Liver Disease and Nutrition, Salem Medical Center, University of Heidelberg, Heidelberg, Germany
J Hepatol 52:206-10. 2010..Since Fibroscan seems to be unreliable in patients with congestive heart failure, it remains to be determined whether hemodynamic changes affect LS irrespective of fibrosis...
In vitro-targeted gene identification in patients with hepatitis C using a genome-wide microarray technologySusanne Hagist
Department of Internal Medicine, Salem Medical Center, University of Heidelberg, Heidelberg, Germany
Hepatology 49:378-86. 2009..CONCLUSION: Although high-density microarray technology is less suitable for routine liver diagnosis, its use in combination with prior in vitro selection is a powerful approach to identify candidate genes relevant for liver disease...
Investigation of tumor hypoxia using a two-enzyme system for in vitro generation of oxygen deficiencyVasileios Askoxylakis
Department of Radiooncology and Radiation Therapy, University of Heidelberg, Heidelberg, Germany
Radiat Oncol 6:35. 2011....
Ethanol-induced cytochrome P4502E1 causes carcinogenic etheno-DNA lesions in alcoholic liver diseaseYing Wang
Center of Alcohol Research, Liver Disease and Nutrition, University of Heidelberg, Germany
Hepatology 50:453-61. 2009....
Compartment-dependent management of H(2)O(2) by peroxisomesReiner Fritz
Department of Internal Medicine, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
Free Radic Biol Med 42:1119-29. 2007..Apparently, PO are inefficient detoxifiers of external H(2)O(2) but rather can become an obligatory source of H(2)O(2)--an important signaling molecule and a potential toxin...
Sustained submicromolar H2O2 levels induce hepcidin via signal transducer and activator of transcription 3 (STAT3)Gunda Millonig
Center for Alcohol Research, University of Heidelberg and Salem Medical Center, 69120 Heidelberg, Germany
J Biol Chem 287:37472-82. 2012..Our results suggest a novel mechanism of hepcidin regulation by nanomolar levels of sustained H(2)O(2). Thus, similar to cytokines, H(2)O(2) provides an important regulatory link between inflammation and iron metabolism...
Cardioprotective effects of the novel selective endothelin-A receptor antagonist BSF 461314 in ischemia-reperfusion injuryAlexander Hansen
Department of Cardiology, University of Heidelberg, Heidelberg, Germany
J Am Soc Echocardiogr 18:1213-20. 2005..015). Therefore, selective endothelin-A receptor antagonism improved microvascular integrity during postischemic reperfusion. Real-time myocardial contrast echocardiography accurately detected changes in microvascular reflow...
Evaluation of cardioprotective effects of recombinant soluble P-selectin glycoprotein ligand-immunoglobulin in myocardial ischemia-reperfusion injury by real-time myocardial contrast echocardiographyAlexander Hansen
Department of Cardiology, University of Heidelberg, Heidelberg, Germany
J Am Coll Cardiol 44:887-91. 2004..The purpose was to examine the cardioprotective effects of recombinant P-selectin glycoprotein ligand-immunoglobulin (rPSGL-Ig) in ischemia-reperfusion injury by real-time myocardial contrast echocardiography (MCE)...
Non-invasive diagnosis of liver diseases by breath analysis using an optimized ion-molecule reaction-mass spectrometry approach: a pilot studyGunda Millonig
Division of Gastroenterology and Hepatology, Department of Internal Medicine, Medical University of Innsbruck, Austria
Biomarkers 15:297-306. 2010..88 and 0.97. IMR-MS followed by sophisticated statistical analysis is a promising tool for liver diagnostics by breath analysis...
Extrahepatic cholestasis increases liver stiffness (FibroScan) irrespective of fibrosisGunda Millonig
Department of Medicine and Center for Alcohol Research, Liver Disease and Nutrition, Salem Medical Center, University of Heidelberg, Heidelberg, Germany
Hepatology 48:1718-23. 2008..Once extrahepatic cholestasis is excluded (e.g., by liver imaging and laboratory parameters) transient elastography is a valuable tool to assess liver fibrosis in chronic liver diseases...
Current experimental perspectives on the clinical progression of alcoholic liver diseaseKatja Breitkopf
Molecular Alcohol Research in Gastroenterology, Department of Medicine II, University Hospital Mannheim, University of Heidelberg, Theodor Kutzer Ufer 1 3, Mannheim 68167, Germany
Alcohol Clin Exp Res 33:1647-55. 2009....
Exposing cells to H2O2: A quantitative comparison between continuous low-dose and one-time high-dose treatmentsMirko C Sobotta
Division of Redox Regulation, German Cancer Research Center DKFZ, DKFZ ZMBH Alliance, 69120 Heidelberg, Germany
Free Radic Biol Med 60:325-35. 2013..Thus, different, or even opposing, biological outcomes from differing means of H2O2 delivery may be expected. Cellular responses induced by bolus treatment may not occur under GOX/CAT conditions, and vice versa...
Assessment of renal allograft fibrosis by transient elastographyClaudia Sommerer
Department of Nephrology, University Hospital Heidelberg, Heidelberg, Germany
Transpl Int 26:545-51. 2013..The heterogeneous kidney morphology and several other confounding factors negatively affect measurability of KS by TE. Further technical modifications are required to improve applicability of TE for kidney assessment...
Association of liver stiffness with hepatic expression of pharmacokinetically important genes in alcoholic liver diseaseDirk Theile
Department of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Heidelberg, Germany
Alcohol Clin Exp Res 37:E17-22. 2013....
Hyperferritinaemia-cataract syndrome: worldwide mutations and phenotype of an increasingly diagnosed genetic disorderGunda Millonig
Center for Alcohol Research and Salem Medical Center, University of Heidelberg, Heidelberg, Germany
Hum Genomics 4:250-62. 2010..Patients diagnosed with HHCS should be counselled regarding the relative harmlessness of this genetic disease, with early cataract surgery as the only clinical consequence...
The etiology of liver damage imparts cytokines transforming growth factor beta1 or interleukin-13 as driving forces in fibrogenesisHong Lei Weng
Molecular Alcohol Research in Gastroenterology, Department of Medicine II, Faculty of Medicine at Mannheim, University of Heidelberg, Germany
Hepatology 50:230-43. 2009..TGF-beta1 predominance is detected in HBV-related liver fibrogenesis and IL-13 predominance in chronic HCV infection. In some instances, the underlying fibrogenic mediator remains enigmatic...
Iron, HCV, and liver cancer: hard metal setting the pace?Sebastian Mueller
Gastroenterology 130:2229-34. 2006
