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DFG Research Grant
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Priv.-Doz. Dr. Nathanael Raschzok receives a research grant from the Deutsche Forschungsgemeinschaft (DFG) for his project "Defatting of steatotic liver grafts by normothermic ex vivo machine perfusion with DNP" in collaboration with Prof. Dr. med. Andreas Birkenfeld, Universitätsklinikum Carl Gustav Carus, Dresden.

Transplantation of steatotic marginal liver grafts is associated with a certain risk of graft dysfunction, primary non-function, and biliary complications, which results in a worse outcome compared to transplantation of unimpaired livers.
We hypothesize, that normothermic machine perfusion combined with adequate pharmacological intervention can prevent the deleterious effect of ischemia-reperfusion injury on macrovesicular grafts by a) minimizing the negative effect of cold storage, and by b) actively decreasing the intracellular fat content of the graft.
Mild mitochondrial uncoupling by DNP decreases the intrahepatic fat content of steatotic liver grafts during normothermic ex vivo machine perfusion. Efficient defatting can be safely achieved ex vivo with DNP concentrations that would be toxic in vivo. Systemic side effects of DNP are prevented by exclusive hepatic exposure through machine perfusion, and by washing DNP out of the liver graft at the end of the perfusion period. The synergetic effects of normothermic perfusion and defatting with DNP will prevent ischemia-reperfusion injury and make severely steatotic liver grafts acceptable for transplantation.
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21. Chirurgischen Forschungstage
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The 21. Chirurgische Forschungstage took place in Cologne. Five of our students gave terrific presentations: S. Moosburner gave an oral presentation on „Steatotic Liver Transplantation – a Growing Problem with Severe Complications“, H. Everwien on „Different biological scaffolds as a platform for engineering an endocrine Neo-Pancreas by using decellularization and recellularization techniques“, M. Noesser on „A comprehensive description of the development of a stable closed circuit for ex vivo rat liver machine perfusion“, R. Horner on „Is Percoll purifcation necessary for isolation of primary human hepatocytes?“, and N. Seiffert on „Recellularization of Decellularized Bovine Carotid Arteries using Human Endothelial Progenitor Cells: One Step towards an Autologous Bypass Graft“.
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ECRT - Advanced Scientist Grant
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PD Dr. Nathanael Raschzok receives one of the 2017 Einstein Center for Regenerative Therapies (ECRT) Kickbox – Advanced Scientist Grant.
Einstein Center for Regenerative Therapies Kickbox – advanced scientist grant. The project is entitled „Overcoming steatotic compromise – Reconstitution of endogenous repair in severely steatotic liver grafts by metabolic reconditioning“. The project will be conducted by Nathanael Raschzok, Angelika Kusch, Duska Dragun, and Igor M. Sauer.

In order to stimulate excellent and creative research ideas that might take regenerative therapies a vital step forward, the Einstein Center offers a special two-stage funding scheme. At first, the Kickbox seed grant provides a great framework to investigate initial ideas and to develop sound research concepts. Subsequently, the flexible funds enable the realisation of projects that evolved from the Kickbox initiation phase in order to reach the scientific goals of the Einstein Center. Congratulations!
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