Hess, Clemens Friedrich

[["dc.bibliographiccitation.artnumber","385"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Basic Research in Cardiology"],["dc.bibliographiccitation.volume","108"],["dc.contributor.author","Sag, Can Martin"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Neumann, Kay"],["dc.contributor.author","Opiela, Marie-Kristin"],["dc.contributor.author","Zhang, J."],["dc.contributor.author","Steuer, Felicia"],["dc.contributor.author","Sowa, Thomas"],["dc.contributor.author","Gupta, Shamindra"],["dc.contributor.author","Schirmer, Markus"],["dc.contributor.author","Huenlich, Mark"],["dc.contributor.author","Rave-Fraenk, Margret"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Anderson, Mark E."],["dc.contributor.author","Shah, Ajay M."],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Maier, Lars S."],["dc.date.accessioned","2018-11-07T09:19:46Z"],["dc.date.available","2018-11-07T09:19:46Z"],["dc.date.issued","2013"],["dc.description.abstract","Ionizing radiation (IR) is an integral part of modern multimodal anti-cancer therapies. IR involves the formation of reactive oxygen species (ROS) in targeted tissues. This is associated with subsequent cardiac dysfunction when applied during chest radiotherapy. We hypothesized that IR (i.e., ROS)-dependently impaired cardiac myocytes' Ca handling might contribute to IR-dependent cardiocellular dysfunction. Isolated ventricular mouse myocytes and the mediastinal area of anaesthetized mice (that included the heart) were exposed to graded doses of irradiation (sham 4 and 20 Gy) and investigated acutely (after similar to 1 h) as well as chronically (after similar to 1 week). IR induced a dose-dependent effect on myocytes' systolic function with acutely increased, but chronically decreased Ca transient amplitudes, which was associated with an acutely unaltered but chronically decreased sarcoplasmic reticulum (SR) Ca load. Likewise, in vivo echocardiography of anaesthetized mice revealed acutely enhanced left ventricular contractility (strain analysis) that declined after 1 week. Irradiated myocytes showed persistently increased diastolic SR Ca leakage, which was acutely compensated by an increase in SR Ca reuptake. This was reversed in the chronic setting in the face of slowed relaxation kinetics. As underlying cause, acutely increased ROS levels were identified to activate Ca/calmodulin-dependent protein kinase II (CaMKII). Accordingly, CaMKII-, but not PKA-dependent phosphorylation sites of the SR Ca release channels (RyR2, at Ser-2814) and phospholamban (at Thr-17) were found to be hyperphosphorylated following IR. Conversely, ROS-scavenging as well as CaMKII-inhibition significantly attenuated CaMKII-activation, disturbed Ca handling, and subsequent cellular dysfunction upon irradiation. Targeted cardiac irradiation induces a biphasic effect on cardiac myocytes Ca handling that is associated with chronic cardiocellular dysfunction. This appears to be mediated by increased oxidative stress and persistently activated CaMKII. Our findings suggest impaired cardiac myocytes Ca handling as a so far unknown mediator of IR-dependent cardiac damage that might be of relevance for radiation-induced cardiac dysfunction."],["dc.identifier.doi","10.1007/s00395-013-0385-6"],["dc.identifier.isi","000324877000001"],["dc.identifier.pmid","24068185"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/10300"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/28721"],["dc.identifier.url","https://sfb1002.med.uni-goettingen.de/production/literature/publications/51"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation","SFB 1002: Modulatorische Einheiten bei Herzinsuffizienz"],["dc.relation","SFB 1002 | A03: Bedeutung CaMKII-abhängiger Mechanismen für die Arrhythmogenese bei Herzinsuffizienz"],["dc.relation.issn","0300-8428"],["dc.relation.workinggroup","RG L. Maier (Experimentelle Kardiologie)"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Ionizing radiation regulates cardiac Ca handling via increased ROS and activated CaMKII"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","127"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Strahlentherapie und Onkologie"],["dc.bibliographiccitation.lastpage","133"],["dc.bibliographiccitation.volume","185"],["dc.contributor.author","Vorwerk, Hilke"],["dc.contributor.author","Liersch, Thorsten"],["dc.contributor.author","Rothe, Hilka"],["dc.contributor.author","Ghadimi, Michael B."],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Hermann, Robert Michael"],["dc.date.accessioned","2018-11-07T08:33:20Z"],["dc.date.available","2018-11-07T08:33:20Z"],["dc.date.issued","2009"],["dc.description.abstract","In locally advanced rectal cancer, neoadjuvant radiochemotherapy is indicated. To improve target volume definition for radiotherapy planning, the potential of implanted gold markers in the tumor region was evaluated. In nine consecutive patients, two to three gold markers were implanted in the tumor region during rigid rectoscopy. Computed tomography scans were performed during treatment planning. All electronic portal imaging devices (EPIDs) recorded during treatment series were analyzed. All patients underwent complete tumor resection with meticulous histopathologic examination. The gold markers could easily be implanted into the mesorectal tissue at the caudal tumor border without any complications. They were helpful in identifying the inferior border of the planning target volume in order to spare normal tissue (in particular anal structures). No significant shift of the markers was found during the course of therapy. Marker matching of the EPIDs did not improve patient positioning in comparison to bone structure matching. The former position of at least one marker could be identified in all patients during histopathologic examination. The use of gold marker enables a more precise definition of the target volume for radiotherapy in patients with rectal cancer. This could eventually allow a better protection of anal structures of patients with a tumor localization a parts per thousand yen 5 cm cranial of the anal sphincter. The implantation of the gold markers improved communication between the surgeon, the radiooncologist and the pathologist resulting in intensified exchange of relevant informations."],["dc.description.sponsorship","German scientific community"],["dc.identifier.doi","10.1007/s00066-009-1928-5"],["dc.identifier.isi","000263686200007"],["dc.identifier.pmid","19241000"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/17553"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Urban & Vogel"],["dc.relation.issn","0179-7158"],["dc.title","Goldmarker zur Tumorlokalisation und Zielvolumendefinition bei der Strahlentherapie des Rektumkarzinoms"],["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","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"]]

[["dc.bibliographiccitation.firstpage","1467"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","International Journal of Radiation Oncology*Biology*Physics"],["dc.bibliographiccitation.lastpage","1478"],["dc.bibliographiccitation.volume","79"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Raus, Ismene"],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Schueler, Phillip"],["dc.contributor.author","Herrmann, Markus Karl"],["dc.contributor.author","Hennies, Steffen"],["dc.contributor.author","Vorwerk, Hilke"],["dc.contributor.author","Hille, Andrea"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Christiansen, Hans"],["dc.date.accessioned","2018-11-07T08:57:35Z"],["dc.date.available","2018-11-07T08:57:35Z"],["dc.date.issued","2011"],["dc.description.abstract","Purpose: To test for a possible correlation between high-grade acute organ toxicity during primary radiochemo-therapy and treatment outcome for patients with anal carcinoma. Methods and Materials: From 1991 to 2009, 72 patients with anal carcinoma were treated at our department (10 patients had stage I, 28 patients had stage II, 11 patients had stage IIIA, and 13 patients had stage IIIB cancer [Union Internationale Contre le Cancer criteria]). All patients received normofractionated (1.8 Gy/day, five times/week) whole-pelvis irradiation including iliac and inguinal lymph nodes with a cumulative dose of 50.4 Gy. Concomitant chemotherapy regimen consisted of two cycles of 5-fluorouracil (1,000 mg/m(2)total body surface area (TBSA)/day as continuous intravenous infusion on days 1-4 and 29-32) and mitomycin C (10 mg/m(2)/TBSA, intravenously on days 1 and 29). Toxicity during treatment was monitored weekly, and any incidence of Common Toxicity Criteria (CTC) grade of for skin reaction, cystitis, proctitis, or enteritis was assessed as high-grade acute organ toxicity for later analysis. Results: We found significant correlation between high-grade acute organ toxicity and overall survival, locoregional control, and stoma-free survival, which was independent in multivariate analysis from other possible prognostic factors: patients with a CTC acute organ toxicity grade of >= 3 had a 5-year overall survival rate of 97% compared to 30% in patients without (p < 0.01, multivariate analysis; 97% vs. 48%,p = 0.03 for locoregional control, and 95% vs. 59%, p = 0.05 for stoma-free survival). Conclusions: Our data indicate that normal tissue and tumor tissue may behave similarly with respect to treatment response, since high-grade acute organ toxicity during radiochemotherapy showed itself to be an independent prognostic marker in our patient population. This hypothesis should be further analyzed by using biomolecular and clinical levels in future clinical trials. (c) 2011 Elsevier Inc."],["dc.identifier.doi","10.1016/j.ijrobp.2010.01.010"],["dc.identifier.isi","000288980100027"],["dc.identifier.pmid","20605354"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23433"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","1879-355X"],["dc.relation.issn","0360-3016"],["dc.title","HIGH-GRADE ACUTE ORGAN TOXICITY AS A POSITIVE PROGNOSTIC FACTOR IN PRIMARY RADIOCHEMOTHERAPY FOR ANAL CARCINOMA"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","864"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Radiology"],["dc.bibliographiccitation.lastpage","871"],["dc.bibliographiccitation.volume","258"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Daldrup, Benjamin"],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Overbeck, Tobias R."],["dc.contributor.author","Hennies, Steffen"],["dc.contributor.author","Matthias, Christoph"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Roedel, Ralf M. W."],["dc.contributor.author","Christiansen, Hans"],["dc.date.accessioned","2018-11-07T08:58:48Z"],["dc.date.available","2018-11-07T08:58:48Z"],["dc.date.issued","2011"],["dc.description.abstract","Purpose: To test for an association between high-grade acute organ toxicity during adjuvant radiation and chemotherapy and treatment outcome in patients with locally advanced head and neck squamous cell carcinoma (HNSCC). Materials and Methods: Institutional review board approval was obtained for this retrospective study. From September 1994 to October 2008, 294 HNSCC patients were treated with adjuvant radiation and chemotherapy at the authors' department. They received normofractionated (2 Gy per fraction) irradiation to include associated nodal drainage sites, for a cumulative dose of 60-64 Gy. From January 2002 to December 2009, 91 patients received additional concomitant cisplatin-based chemotherapy. Toxicity during treatment was monitored weekly according to the common toxicity criteria (CTC); any CTC toxicity grade 3 or higher, including mucositis, dysphagia, or skin reaction, was considered high-grade acute organ toxicity. The influence of possible prognostic factors on overall survival and locoregional control was studied by means of uni- and multivariate Cox regression. Results: A statistically significant association was found between high-grade acute organ toxicity and both overall survival and locoregional control. Patients with CTC grade 3 or greater acute organ toxicity had a 5-year overall survival and locoregional control rate of 90% and 97%, respectively, as compared with 24% and 74%, respectively, in patients without such toxicity (P < .01). Multivariate analyses revealed that this association was independent from other factors that may influence treatment toxicity, especially concomitant chemotherapy and/or radiation therapy. Conclusion: The data suggest that normal tissue and tumor tissue may behave similarly with respect to treatment response, as high-grade acute organ toxicity during radiation and chemotherapy was associated with better outcomes in the patient population; therefore, the hypothesis should be further analyzed on the biomolecular and clinical level and with other tumor entities in prospective clinical trials. (C)RSNA, 2011"],["dc.identifier.doi","10.1148/radiol.10100705"],["dc.identifier.isi","000287573100023"],["dc.identifier.pmid","21339350"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/23729"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Radiological Soc North America"],["dc.relation.issn","0033-8419"],["dc.title","High-Grade Acute Organ Toxicity as Positive Prognostic Factor in Adjuvant Radiation and Chemotherapy for Locally Advanced Head and Neck Cancer"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","821"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","Strahlentherapie und Onkologie"],["dc.bibliographiccitation.lastpage","829"],["dc.bibliographiccitation.volume","185"],["dc.contributor.author","Vorwerk, Hilke"],["dc.contributor.author","Wagner, Daniela"],["dc.contributor.author","Seitz, Bjoern"],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.date.accessioned","2018-11-07T11:21:48Z"],["dc.date.available","2018-11-07T11:21:48Z"],["dc.date.issued","2009"],["dc.description.abstract","Purpose: To analyze different control-system limitations on the measured dose distributions in Low-dose regions of simplified intensity fields with an electronic portal imaging device to ascertain the optimal settings for the control-system limitations in the planning system. Material and Methods: The authors created one field with an \"optimal fluence\" of intensity 1.0 (full dose) and one field with intensity 0.0 (no dose) in the central part of the field. The influence of different dose rates (DRs) and maximum leaf speeds (LS) on the calculated and measured dose and dose profiles were analyzed. Results: Good agreement between calculated and measured dose in the case of a field of intensity 1.0 was found. For the field with intensity 0.0, the measured dose was 20-60% tower than the dose calculated by the \"actual fluence\". The results were found dependent on the DR and LS. Conclusion: The overestimation in regions of optimal intensity 0.0 by the planning system cannot be resolved by the user. Taking the measured dose in the region of desired intensity 1.0 and other technical limitations (like beam hold interrupts or spikes in the cross and longitudinal profiles) into consideration, the application of an LS of 2.5 cm/s and a DR of 500 MU/min is recommended in order to minimize radiation dose applied to organs at risk, which are located in regions of low intensity, like, for example, the spinal cord."],["dc.identifier.doi","10.1007/s00066-009-2028-2"],["dc.identifier.isi","000272525100007"],["dc.identifier.pmid","20013092"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/55861"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Urban & Vogel"],["dc.relation.issn","0179-7158"],["dc.title","Overestimation of Low-Dose Radiation in Intensity-Modulated Radiotherapy with Sliding-Window Technique"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","162"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Radiation Research"],["dc.bibliographiccitation.lastpage","169"],["dc.bibliographiccitation.volume","169"],["dc.contributor.author","Moriconi, Federico"],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Raddatz, Dirk"],["dc.contributor.author","Dudas, Joszef"],["dc.contributor.author","Hermann, Robert Michael"],["dc.contributor.author","Rave-Fraenk, Mararet"],["dc.contributor.author","Sheikh, Nadeem"],["dc.contributor.author","Saile, Bernhard"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Ramadori, Giuliano"],["dc.date.accessioned","2018-11-07T11:18:56Z"],["dc.date.available","2018-11-07T11:18:56Z"],["dc.date.issued","2008"],["dc.description.abstract","The aim of the study was to analyze the effect of a single irradiation on chemokine gene expression in the rat liver and in isolated rat hepatocytes. RNA extracted from livers and from hepatocytes within the first 48 h after irradiation was analyzed by real-time PCR and the Northern blot assay. The chemokine concentrations in the serum of irradiated rats were measured quantitatively by ELISA. A significant radiation-induced increase of CINC1, IP10, MCP1, MIP3 alpha, MIP3 beta, MIG and ITAC gene expression could be detected at the RNA level in the liver. CINC1, MCP1 and IP10 serum levels were significantly increased. In rat hepatocytes in vitro, only MIP3a showed a radiation-induced increase in expression, while CINC1, IP10, MIP3 beta, MIG, MIP1 alpha, ITAC and SDF1 RNA levels were significantly down-regulated. However, incubation of irradiated hepatocytes in vitro with either TNF-alpha, IL1 beta, or IL6 plus TNF-alpha led to up-regulation of MCP1, IP10 and MCP1 or CINC1 and MIP3 beta, respectively. Irradiation of the liver induces up-regulation of the genes of the main proinflammatory chemokines, probably through the action of locally synthesized proinflammatory cytokines. The reason for the lack of liver inflammation in this model has still to be clarified. (C) 2008 by Radiation Research Society."],["dc.identifier.doi","10.1667/RR1006.1"],["dc.identifier.isi","000252633000004"],["dc.identifier.pmid","18220462"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/55150"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Radiation Research Soc"],["dc.relation.issn","0033-7587"],["dc.title","Effect of radiation on gene expression of rat liver chemokines: In vivo and in vitro studies"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","International Journal of Radiation Oncology*Biology*Physics"],["dc.bibliographiccitation.volume","75"],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Roedel, Ralf M. W."],["dc.contributor.author","Steiner, Wolfgang"],["dc.contributor.author","Matthias, Christoph"],["dc.date.accessioned","2018-11-07T11:23:46Z"],["dc.date.available","2018-11-07T11:23:46Z"],["dc.date.issued","2009"],["dc.format.extent","633"],["dc.identifier.doi","10.1016/j.ijrobp.2009.05.062"],["dc.identifier.isi","000269941600047"],["dc.identifier.pmid","19735892"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/56260"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0360-3016"],["dc.title","LARYNX PRESERVATION CLINICAL TRIAL DESIGN: KEY ISSUES AND RECOMMENDATIONS-A CONSENSUS PANEL SUMMARY: IN REGARD TO LEFEBVRE ET AL., FOR THE LARYNX PRESERVATION CONSENSUS PANEL (INT J RADIAT ONCOL BIOL PHYS 2009;73:1293-1303)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.subtype","letter_note"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","621"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","The Oncologist"],["dc.bibliographiccitation.lastpage","631"],["dc.bibliographiccitation.volume","16"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Conradi, Lena-Christin"],["dc.contributor.author","Schirmer, Markus Anton"],["dc.contributor.author","Beißbarth, Tim"],["dc.contributor.author","Sprenger, Thilo"],["dc.contributor.author","Rave-Fränk, Margret"],["dc.contributor.author","Hennies, Steffen"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Becker, Heinz"],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Liersch, Torsten"],["dc.date.accessioned","2018-11-07T09:01:50Z"],["dc.date.available","2018-11-07T09:01:50Z"],["dc.date.issued","2011"],["dc.description.abstract","Patients with locally advanced rectal cancer (cUICC stages II/III) are typically treated with preoperative 5-fluorouracil-based (5-FU-based) radiochemotherapy (RCT). However, trials are currently being conducted to improve the complete remission rates and the systemic control by combining 5-FU with oxaliplatin. The primary objective was to identify the subgroups of rectal cancer patients who were at risk for high-grade toxicity. All 196 patients who were included in the present study were treated with 50.4 Gy and chemotherapy that included either 5-FU (n = 115) or 5-FU + oxaliplatin (n + 81). The preoperative RCT was followed by a total mesorectal excision and adjuvant chemotherapy. Acute toxicity was monitored weekly and a toxicity grade >= 3 (Common Toxicity Criteria) for a skin reaction, cystitis, proctitis, or enteritis was defined as high-grade acute organ toxicity. After RCT with 5-FU + oxaliplatin, complete tumor remission was achieved in 13.6% of the patients and in 11.3% after RCT with 5-FU alone. Complete irradiation dosages of 50.4 Gy were given to 99% (5-FU) and 95% (5-FU + oxaliplatin) of the patients. Concomitant chemotherapy was fully administered in 95% of the patients treated with 5-FU compared with the 84% of patients treated with 5-FU + oxaliplatin. A significantly higher proportion of acute organ toxicity was found in the patients who were treated with 5-FU + oxaliplatin compared with those who were treated with 5-FU. Additionally, women with a low body mass index were at the highest risk for acute organ toxicity. These results suggest that there are basic clinical parameters, such as gender and body mass index, that may be potential markers for generating individual risk profiles of RCT-induced toxicity. The Oncologist 2011;16:621-631"],["dc.identifier.doi","10.1634/theoncologist.2010-0414"],["dc.identifier.isi","000290661900012"],["dc.identifier.pmid","21558132"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24528"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Alphamed Press"],["dc.relation.issn","1083-7159"],["dc.title","Gender-Specific Acute Organ Toxicity during Intensified Preoperative Radiochemotherapy for Rectal Cancer"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]