Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/44479
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Novel fibroblastic onion bulbs in a demyelinating avian peripheral neuropathy produced by riboflavin deficiency
Author: Cai, Z.
Blumbergs, P.
Finnie, J.
Manavis, J.
Thompson, P.
Citation: Acta Neuropathologica, 2007; 114(2):187-194
Publisher: Springer
Issue Date: 2007
ISSN: 0001-6322
1432-0533
Statement of
Responsibility: 
Z. Cai, P. C. Blumbergs, J. W. Finnie, J. Manavis and P. D. Thompson
Abstract: The finding of novel fibroblastic onion bulb-like structures in peripheral nerves is reported for the first time in avian riboflavin deficiency. Day old broiler meat chickens were fed a riboflavin deficient diet (1.8 mg/kg) and were killed on postnatal days 6, 11, 16, 21 and 31, whereas control chickens were fed a conventional diet containing 5.0 mg/kg riboflavin. The fibroblastic onion bulb-like structures were found in sciatic and brachial nerves from day 11 onwards and consisted of long cytoplasmic processes of hypertrophied fibroblasts surrounding demyelinated, remyelinated and normally myelinated axons. The fibroblast cytoplasmic processes often enveloped more than one nerve fibre to produce a unique compound-like onion bulb structure. These onion bulb-like structures occurred early in the course of segmental demyelination at the same time as tomacula formation and became increasingly more prominent in the later stages of demyelination and remyelination. The molecular basis of formation of these unique structures requires further study as to the basis of the attraction of the fibroblast processes to nerve fibres associated with myelinating Schwann cells. The model may also be useful in investigating the role of endoneurial fibroblasts in endoneurial fibrosis as the early fibroblastic response in the onion bulbs is distinct from the more usual fibroblastic deposition of collagen in end-stage peripheral nerve disease.
Keywords: Avian riboflavin deficiency; Peripheral nerves; Demyelination; Fibroblastic onion bulbs
Description: © Springer The original publication can be found at www.springerlink.com
RMID: 0020072386
DOI: 10.1007/s00401-007-0215-8
Published version: http://www.springerlink.com/content/p7r408g8579v64w2/
Appears in Collections:Pathology publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.