期刊
PEPTIDES
卷 21, 期 5, 页码 741-752出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/S0196-9781(00)00186-8
关键词
acetylcholinesterase; calcitonin gene-related peptide; islets of Langerhans; islet grafts; neuropeptides; neuropeptide Y; neuroinsular complex; reinnervation; substance P; vasoactive intestinal polypeptide; transplantation; tyrosine hydroxylase
Functional alterations are developed in transplanted islets over time. Because islets in situ are densely innervated and isolation disconnects the endocrine organ from extrinsic nerves and from ganglia in the exocrine pancreas, it is important to examine the reinnervation of islet grafts. This review describes the patterns of appearances of intrinsic perikarya and reinnervating fibers demonstrating markers for parasympathetic. sympathetic or sensory nerve substances, most notably neuropeptides, in islet transplants. An altered innervation pattern, as compared to normal islets, develops. Presumably the expression of neuronal markers in the grafts is related to factors both in the islets and in the ectopic environment offered by the implantation organ. (C) 2000 Elsevier Science Inc. All rights reserved.
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