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Kyoto islet isolation method: the optimized one for non-heart-beating donors with highly efficient islet retrieval |
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| Authors: | Okitsu T Matsumoto S Iwanaga Y Noguchi H Nagata H Yonekawa Y Maekawa T Tanaka K |
| Affiliation: | a Transplant Surgery, Kyoto University Hospital, Kyoto b Transplantation Unit, Kyoto University Hospital, Kyoto c The Japan Society for the Promotion of Science, Kyoto, Japan. d Department of Transplantation and Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan. e Department of Transfusion and Cell Therapy, Kyoto University Hospital, Kyoto, Japan. |
| Abstract: | The availability of pancreata for clinical cadaveric islet transplantation is restricted to non-heart-beating donors (NHBDs) in Japan. This forced us to modify the current standard islet isolation protocol that was made up for brain-dead donors and make it suitable for NHBDs. The Kyoto islet isolation method is the one with induction of several steps based on the ideas both already reported literally and invented originally by ourselves. Using this islet isolation method, we isolated islets from 13 human pancreata of NHBDs and transplanted 11 preparations to six type-1 diabetic patients. The rate to meet release criteria of Edmonton protocol was 84.6%. Establishment of this method allowed us to begin a clinical islet transplantation program in Japan and to continue to perform the preparation of islets from NHBDs with high rate to meet the release criteria of the Edmonton protocol. |
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