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Further Evidence for Amyloid Deposition in Clinical Pancreatic Islet Grafts
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology.
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2012 (English)In: Transplantation, ISSN 0041-1337, E-ISSN 1534-6080, Vol. 93, no 2, 219-223 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: The reasons for the long-term complete or partial loss of islet graft function are unknown, but there are obviously other reasons than just pure allogeneic graft rejection. Earlier studies have shown that deposition of islet amyloid polypeptide amyloid in transplanted islets may indicate a mechanism for loss of β cells.

MATERIALS AND METHODS: Sections from liver material from four deceased islet-bearing recipients have been scrutinized for the presence of amyloid. Clinical data and certain aspects of the islet graft pathology of these patients have been published previously.

RESULT: With this extended histological analysis, we demonstrate the occurrence of amyloid deposits in islets transplanted into the liver in three of four patients with type 1 diabetes.

CONCLUSION: The finding adds evidence to the assumption that aggregation of islet amyloid polypeptide might be an important cause of progressing β-cell dysfunction in clinically transplanted islets.

Place, publisher, year, edition, pages
2012. Vol. 93, no 2, 219-223 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-165755DOI: 10.1097/TP.0b013e31823e46efISI: 000299164000019PubMedID: 22193043OAI: oai:DiVA.org:uu-165755DiVA: diva2:474618
Available from: 2012-01-09 Created: 2012-01-09 Last updated: 2012-02-14Bibliographically approved

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Westermark, Gunilla T.Korsgren, OlleTufveson, GunnarAndersson, ArneWestermark, Per
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