| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
American Journal of Pathology, Vol 103, 210-225, Copyright © 1981 by American Society for Investigative Pathology
REGULAR ARTICLES |
RE Schmidt, JS Nelson and EM Johnson Jr
The regular occurrence of autonomic neuropathy, colonic dilatation, and loss of fecal consistency was investigated in streptozotocin-diabetic, age-matched control, and pancreatic-islet--transplanted rats using ultrastructural, histochemical, and biochemical methods. Degenerating unmyelinated axons were observed by electron microscopy in the colonic submucosa and muscularis, ileal mesentery, and splenic pedicle in 5--7 months diabetic animals; similar changes were not found in control rats or animals subjected to islet transplantation three weeks after induction of diabetes and sacrificed 4--6 months later (colon only). Regenerative changes, including axons with identifiable growth cones, were demonstrated in the mesenteric nerves of chronically diabetic animals. Formaldehyde-induced catecholamine fluorescence and cholinesterase histochemistry suggested deficiencies in colonic adrenergic and cholinergic innervation; histochemical findings in islet- transplanted animals were comparable to those of untreated control animals. Biochemical measurements of the adrenergic and cholinergic nervous system marker enzymes dopamine-beta-hydroxylase and choline acetyltransferase, respectively, in colon and spleen confirm a deficit in adrenergic (colon and spleen) and cholinergic (colon) innervation in chronically diabetic animals.
This article has been cited by other articles:
![]() |
R. E. Schmidt, D. A. Dorsey, L. N. Beaudet, K. E. Frederick, C. A. Parvin, S. B. Plurad, and M. G. Levisetti Non-Obese Diabetic Mice Rapidly Develop Dramatic Sympathetic Neuritic Dystrophy: A New Experimental Model of Diabetic Autonomic Neuropathy Am. J. Pathol., November 1, 2003; 163(5): 2077 - 2091. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. E. Schmidt, D. A. Dorsey, L. N. Beaudet, S. B. Plurad, C. A. Parvin, and M. S. Miller Insulin-like Growth Factor I Reverses Experimental Diabetic Autonomic Neuropathy Am. J. Pathol., November 1, 1999; 155(5): 1651 - 1660. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |