Ramadori, Giuliano

[["dc.bibliographiccitation.firstpage","565"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Journal of Hepatology"],["dc.bibliographiccitation.lastpage","572"],["dc.bibliographiccitation.volume","42"],["dc.contributor.author","Haralanova-Ilieva, B."],["dc.contributor.author","Ramadori, Giuliano"],["dc.contributor.author","Armbrust, T."],["dc.date.accessioned","2018-11-07T11:12:14Z"],["dc.date.available","2018-11-07T11:12:14Z"],["dc.date.issued","2005"],["dc.description.abstract","Background/Aims: The transmembrane glycoprotein osteoactivin is expressed in osteoblasts, dendritic cells and tumor cells. It is suggested to influence osteoblast maturation, cell adhesion and migration. We studied osteoactivin expression within the liver. Methods: Expression of osteoactivin was analysed by RT-PCR, Northern blotting, in situ hybridisation (ISH) and immunohistochemistry (IHC) comparing normal and acutely injured rat liver [induced by carbon tetrachloride (CCl4) administration], liver cell populations, and normal or diseased human liver. Results: By ISH osteoactivin expression was detected in sinusoid-lining cells found by IHC to be positive for the common mononuclear phagocyte marker antibody anti-CD68. While total liver contained only traces, isolated Kupffer cells expressed abundant amounts of osteoactivin mRNA further increasing during culture. In acutely injured rat liver osteoactivin expression was strongly increased reaching maximum of expression 48 h after CCl4. By ISH osteoactivin expression was localised in pericentral inflammatory cells and sinusoid-lining cells again anti-CD68 positive. Dexamethasone and lipopolysaccharide decreased osteoactivin expression in cultured mononuclear phagocytes of normal as well as of acutely injured liver. In human liver osteoactivin was increased in fulminant hepatitis and paracetamol intoxication. Conclusions: Osteoactivin is expressed at high levels in normal and inflammatory liver macrophages suggesting a significant role in acute liver injury. (C) 2005 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.jhep.2004.12.021"],["dc.identifier.isi","000228302700025"],["dc.identifier.pmid","15763343"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/53615"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","0168-8278"],["dc.title","Expression of osteoactivin in rat and human liver and isolated rat liver cells"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Liver Transplantation"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Homayounfar, Kia"],["dc.contributor.author","Goralczyk, Armin"],["dc.contributor.author","Becker, Heinz"],["dc.contributor.author","Ramadori, Giuliano"],["dc.contributor.author","Lorf, Thomas"],["dc.contributor.author","Obed, Aiman"],["dc.date.accessioned","2018-11-07T08:28:21Z"],["dc.date.available","2018-11-07T08:28:21Z"],["dc.date.issued","2009"],["dc.format.extent","S148"],["dc.identifier.isi","000267792300256"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16399"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","John Wiley & Sons Inc"],["dc.publisher.place","Hoboken"],["dc.relation.conference","15th Annual Congress of the International-Liver-Transplantation-Society"],["dc.relation.eventlocation","New York, NY"],["dc.relation.issn","1527-6465"],["dc.title","LONG TERM SURVIVAL, AFTER LIVER TRANSPLANTATION IN PATIENTS WITH NEUROENDOCRINE LIVER METASTASES: GERMAN SINGLE CENTER EXPERIENCE"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","157"],["dc.bibliographiccitation.journal","Journal of Hepatology"],["dc.bibliographiccitation.lastpage","158"],["dc.bibliographiccitation.volume","40"],["dc.contributor.author","Zocco, Maria Assunta"],["dc.contributor.author","Carloni, E."],["dc.contributor.author","Nista, E. C."],["dc.contributor.author","Candelli, M."],["dc.contributor.author","Cazzato, I. A."],["dc.contributor.author","Di Campli, C."],["dc.contributor.author","Nestola, M."],["dc.contributor.author","Gasbarrini, G."],["dc.contributor.author","Ramadori, Giuliano"],["dc.contributor.author","Gasbarrini, A."],["dc.date.accessioned","2018-11-07T10:49:58Z"],["dc.date.available","2018-11-07T10:49:58Z"],["dc.date.issued","2004"],["dc.identifier.doi","10.1016/S0168-8278(04)90536-3"],["dc.identifier.isi","000220950800537"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/48553"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.publisher.place","Amsterdam"],["dc.relation.conference","39th Annual Meeting of the European-Association-for-the-Study-of-the-Liver"],["dc.relation.eventlocation","Berlin, GERMANY"],["dc.relation.issn","0168-8278"],["dc.title","Characterization of gene expression profile in Kupffer cells stimulated with IFN alpha and gamma"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Strahlentherapie und Onkologie"],["dc.bibliographiccitation.volume","183"],["dc.contributor.author","Christiansen, H."],["dc.contributor.author","Guerleyen, Hakan"],["dc.contributor.author","Rave-Fraenk, Margret"],["dc.contributor.author","Dudas, Jozsef"],["dc.contributor.author","Hess, C. F."],["dc.contributor.author","Ramadori, Giuliano"],["dc.contributor.author","Saile, Bernhard"],["dc.date.accessioned","2018-11-07T11:02:14Z"],["dc.date.available","2018-11-07T11:02:14Z"],["dc.date.issued","2007"],["dc.format.extent","49"],["dc.identifier.isi","000247071800131"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51329"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Urban & Vogel"],["dc.publisher.place","Munich"],["dc.relation.conference","13th Congress of the Deutschen-Gesellschaft-fur-Radioonkologie"],["dc.relation.eventlocation","Hannover, GERMANY"],["dc.relation.issn","0179-7158"],["dc.title","Radiation-induced reduced expression of Hsp27 in in vitro liver macrophages leads to apoptosis and release of TNF-alpha"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","301"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Cell and Tissue Research"],["dc.bibliographiccitation.lastpage","311"],["dc.bibliographiccitation.volume","313"],["dc.contributor.author","Dudas, Jozsef"],["dc.contributor.author","Saile, Bernhard"],["dc.contributor.author","El-Armouche, H."],["dc.contributor.author","Aprigliano, Isabella"],["dc.contributor.author","Ramadori, Giuliano"],["dc.date.accessioned","2018-11-07T10:36:23Z"],["dc.date.available","2018-11-07T10:36:23Z"],["dc.date.issued","2003"],["dc.description.abstract","Hepatic stellate cells (HSCs), the pericytes of hepatic sinusoids, and liver myofibroblasts (rMFs), cells located in the portal field and around the pericentral area, are the principal fibrogenic cell types of the liver. In cases of liver damage HSCs undergo 'activation,' i.e., they acquire a myofibroblast-like appearance and synthesize huge amounts of extracellular matrix proteins (ECMs). Their proliferation ability, however, is a matter of debate. In fact, during culture the number of rat HSCs decreases, while DNA synthesis activity and DNA content per cell increase (4+/-0.6 times). Together with the decrease in cell number (60+/-19% at day 6 of primary culture compared to day 3), cell volume increases and many HSCs become multinuclear. On the other hand, in cultures of rMFs, cell number increases along with DNA synthesis, and these cells do not become multinuclear. 'Activated' HSCs produce higher levels of cyclin D-1 and E-1 transcripts than rMFs, which correlates with their increased levels of phosphorylated retinoblastoma (Rb) protein. In activated HSCs DNA synthesis seems to be associated with polyploidy and increase in cell volume, while DNA synthesis is followed by mitosis in rMFs."],["dc.identifier.doi","10.1007/s00441-003-0768-3"],["dc.identifier.isi","000185457000006"],["dc.identifier.pmid","12898209"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/45309"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0302-766X"],["dc.title","Endoreplication and polyploidy in primary culture of rat hepatic stellate cells"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","S479"],["dc.bibliographiccitation.journal","Radiotherapy and Oncology"],["dc.bibliographiccitation.lastpage","S480"],["dc.bibliographiccitation.volume","81"],["dc.contributor.author","Rave-Fraenk, Margret"],["dc.contributor.author","Guerleyen, Hakan"],["dc.contributor.author","Christiansen, H."],["dc.contributor.author","Thello, K."],["dc.contributor.author","Dudas, Jozsef"],["dc.contributor.author","Hermann, Robert Michael"],["dc.contributor.author","Hess, C. F."],["dc.contributor.author","Ramadori, Giuliano"],["dc.contributor.author","Saile, Bernhard"],["dc.date.accessioned","2018-11-07T09:13:58Z"],["dc.date.available","2018-11-07T09:13:58Z"],["dc.date.issued","2006"],["dc.identifier.isi","000242719101490"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27292"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Ireland Ltd"],["dc.publisher.place","Clare"],["dc.relation.conference","Conference of the Spanish-Portuguese-and -Latin-American-Association"],["dc.relation.eventlocation","Leipzig, GERMANY"],["dc.relation.issn","0167-8140"],["dc.title","Irradiation leads to sensitization of hepatocytes to TNF-alpha- mediated apoptosis by upregulation of IKB expression"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","388"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of Cellular Physiology"],["dc.bibliographiccitation.lastpage","398"],["dc.bibliographiccitation.volume","199"],["dc.contributor.author","Novosyadlyy, R."],["dc.contributor.author","Tron, Kyrylo"],["dc.contributor.author","Dudas, Jozsef"],["dc.contributor.author","Ramadori, Giuliano"],["dc.contributor.author","Scharf, Jens-Gerd"],["dc.date.accessioned","2018-11-07T10:48:32Z"],["dc.date.available","2018-11-07T10:48:32Z"],["dc.date.issued","2004"],["dc.description.abstract","Apart from hepatic stellate cells (HSC), liver myofibroblasts (MF) represent a second mesenchymal cell population involved in hepatic fibrogenesis. The IGF system including the insulin-like growth factors I and II (IGF-I, -II), their receptors (IGF-I receptor, IGF-IR; IGF-II/mannose 6-phosphate receptor, IGF-II/M6-PR), and six high affinity IGF binding proteins (IGFBPs) participate in the regulation of growth and differentiation of cells of the fibroblast lineage, possibly contributing to the fibrogenic process. The aim of this work was to study the expression and regulation of the IGF axis components in rat liver MF. Methods: Cultures of MF from passages I to 4 (P1-4) were studied. IGFBP secretion was analyzed by [I-125]-IGF-I ligand and immunoblotting. IGF-I, IGF-IR, IGF-II/M6-PR, and IGFBP messenger RNA (mRNA) expression was assessed by Northern blot hybridization. DNA synthesis was evaluated by 5-bromo-2'-deoxyuridine (BrdU) incorporation assay. Results: MF from PI to 4 constitutively expressed nnRNA transcripts specific for IGF-I, IGF-IR, and IGF-II/M6-PR. In MF, biosynthesis of IGFBP-3 and -2 was observed that was stimulated by IGF-I, insulin, and transforming growth factor P (TGF-beta), whereas platelet-derived growth factor (PDGF-BB) revealed inhibitory effects. IGF-I and to a lesser extent insulin increased DNA synthesis of MF. Simultaneous addition of recombinant human IGFBP-2 or -3 with IGF-I diminished the mitogenic effect of IGF-I on MF whereas preincubation of MF with IGFBP-2 or -3 further potentiated the IGF-I stimulated DNA synthesis. In conclusion, the present study demonstrates that the IGF axis may play a role in the regulation of MF proliferation in vitro which might be relevant in vivo for the process of fibrogenesis during acute and chronic liver injury. J. Cell. Physiol. 199: 388-398, 2004. (C) 2004 Wiley-Liss, Inc."],["dc.identifier.doi","10.1002/jcp.10437"],["dc.identifier.isi","000221180200007"],["dc.identifier.pmid","15095286"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/48218"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-liss"],["dc.relation.issn","0021-9541"],["dc.title","Expression and regulation of the insulin-like growth factor axis components in rat liver myofibroblasts"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","189"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Radiology"],["dc.bibliographiccitation.lastpage","197"],["dc.bibliographiccitation.volume","242"],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Sheikh, Nadeem"],["dc.contributor.author","Saile, Bernhard"],["dc.contributor.author","Reuter, Felix"],["dc.contributor.author","Rave-Frank, Margret"],["dc.contributor.author","Hermann, Robert Michael"],["dc.contributor.author","Dudas, Jozsef"],["dc.contributor.author","Hille, Andrea"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Ramadori, Giuliano"],["dc.date.accessioned","2018-11-07T11:07:32Z"],["dc.date.available","2018-11-07T11:07:32Z"],["dc.date.issued","2007"],["dc.description.abstract","Purpose: To prospectively analyze hepcidin, hemojuvelin and ferro-portin-1 expression after x-irradiation or rat liver and isolated rat hepacocytes. Materials and Methods: The treatment of the rats and this study were improved by the local committee and the public authority on animal welfare. Rat livers in vivo and isolated rat hepatocytes in vitro were irradiated. The total number of rats in this study was 43. RNA extracted from livers (1, 3, 6, 12, 24, and 48 hours after irradiation) and from hepatocytes (1, 3, 6, 12, and 24 hours after irradiation) was analyzed with real-time polymerase chain reaction and Northern blot. Cytokines and prohepcidin in serum of irradiated rats were quantitatively detected with enzyme-linked immunosorbent assay. Sham-irradiated animals served as controls in all experiments. Differences between sham-irradiated and irradiated data groups were tested with anaylsis of variance and Dunnett post hoc test. Results: In vivo, a significant radiation-induced increase of hepcidin (P = .034), interleukin (IL) 1 beta (P = .008), IL-6 (P < .011), and tumor necrosis factor alpha (TNF-alpha) (P = .047) expression could be detected within the first 48 hours after irradiation. Expression of hemojuvelin (P = .008) and ferro-portin-1 (P = .002) was significantly decreased. Serum iron levels were decreased because of irradiation (P < .058); prohepcidin serum levels were increased (P = .05). In rat hepatocytes in vitro, hepcidin RNA levels were significantly downregulated after irradiation (P < .001). Incubation of irradiated hepatocytes with IL-1 beta, IL-6, or TNNF-alpha led to upregulation of hepcidin expression in vitro up to 6 hours after irradiation, with subsequent significant down-regulation for incubation with IL-1 beta (P < .001). Hemojuvelin expression behaved in a way opposite to that of hepcidin. Conclusion: x-Irradiation of the liver, induced changes of hepcidin gene expression that are probably induced by acute phase mediators produced within the liver, itself."],["dc.identifier.doi","10.1148/radiol.2421060083"],["dc.identifier.isi","243842500024"],["dc.identifier.pmid","17090718"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/52584"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Radiological Soc North America"],["dc.relation.issn","0033-8419"],["dc.title","x-irradiation in rat liver: Consequent upregulation of hepcidin and downregulation of hemojuvelin and ferroportin-1 gene expression"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","352"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Genomics"],["dc.bibliographiccitation.lastpage","364"],["dc.bibliographiccitation.volume","86"],["dc.contributor.author","Cimica, Velasco"],["dc.contributor.author","Batusic, D."],["dc.contributor.author","Chen, Y. L."],["dc.contributor.author","Hollemann, T."],["dc.contributor.author","Pieler, T."],["dc.contributor.author","Ramadori, Giuliano"],["dc.date.accessioned","2018-11-07T10:56:09Z"],["dc.date.available","2018-11-07T10:56:09Z"],["dc.date.issued","2005"],["dc.description.abstract","We have performed serial analysis of gene expression of the regenerating liver. In the rat model of partial hepatectomy and 2-acetamidofluorene treatment liver regeneration recruits hepatic stem cells referred to as oval cells. We analyzed a total of 153,057 tags in livers from normal control (52,343 tags), from sham 2-acetamidofluorene-treated control (50,502 tags), and from the early stage of oval cell proliferation (50,212 tags). Comparative analysis of the three transcriptomes identified 27 up-regulated and 18 down-regulated genes. Real-time PCR analysis confirmed I I temporally regulated genes that correlate with oval cell development. Interestingly, we found by Western blot protein analysis of regenerating livers that the cell cycle gene Cdc42 was induced concomitant with the proliferation marker cyclin D I and the oval cell marker alpha-fetoprotein. Our studies provide new insights into the molecular mechanism of liver regeneration through oval cells. (c) 2005 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.ygeno.2005.05.001"],["dc.identifier.isi","000231350300011"],["dc.identifier.pmid","15993033"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49946"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Academic Press Inc Elsevier Science"],["dc.relation.issn","0888-7543"],["dc.title","Transcriptome analysis of rat liver regeneration in a model of oval hepatic stem cells"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","321"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Radiation and Environmental Biophysics"],["dc.bibliographiccitation.lastpage","338"],["dc.bibliographiccitation.volume","52"],["dc.contributor.author","Rave-Fraenk, Margret"],["dc.contributor.author","Malik, Ihtzaz Ahmed"],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Naz, Naila"],["dc.contributor.author","Sultan, Sadaf"],["dc.contributor.author","Amanzada, Ahmad"],["dc.contributor.author","Blaschke, Martina"],["dc.contributor.author","Cameron, Silke"],["dc.contributor.author","Ahmad, Shakil"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Ramadori, Giuliano"],["dc.contributor.author","Moriconi, Federico"],["dc.date.accessioned","2018-11-07T09:22:03Z"],["dc.date.available","2018-11-07T09:22:03Z"],["dc.date.issued","2013"],["dc.description.abstract","The liver is considered a radiosensitive organ. However, in rats, high single-dose irradiation (HDI) showed only mild effects. Consequences of fractionated irradiation (FI) in such an animal model have not been studied so far. Rats were exposed to selective liver FI (total dose 60 Gy, 2 Gy/day) or HDI (25 Gy) and were killed three months after the end of irradiation. To study acute effects, HDI-treated rats were additionally killed at several time points between 1 and 48 h. Three months after irradiation, no differences between FI and HDI treatment were found for macroscopically detectable small \"scars\" on the liver surface and for an increased number of neutrophil granulocytes distributed in the portal fields and through the liver parenchyma. As well, no changes in HE-stained tissues or clear signs of fibrosis were found around the portal vessels. Differences were seen for the number of bile ducts being increased in FI- but not in HDI-treated livers. Serum levels indicative of liver damage were determined for alkaline phosphatase (AP), aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma-glutamyltransferase (gamma GT) and lactate dehydrogenase (LDH). A significant increase of AP was detected only after FI while HDI led to the significant increases of AST and LDH serum levels. By performing RT-PCR, we detected up-regulation of matrix metalloproteinases, MMP-2, MMP-9, MMP-14, and of their inhibitors, TIMP-1, TIMP-2 and TIMP-3, shortly after HDI, but not at 3 month after FI or HDI. Overall, we saw punctual differences after FI and HDI, and a diffuse formation of small scars at the liver surface. Lack of \"provisional clot\"-formation and absence of recruitment of mononuclear phagocytes could be one explanation for scar formation as incomplete repair response to irradiation."],["dc.identifier.doi","10.1007/s00411-013-0468-7"],["dc.identifier.isi","000322033000004"],["dc.identifier.pmid","23595725"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29250"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0301-634X"],["dc.title","Rat model of fractionated (2 Gy/day) 60 Gy irradiation of the liver: long-term effects"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]