Linked Life Data

2237917

Source:http://linkedlifedata.com/resource/pubmed/id/2237917

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1990-12-12
pubmed:abstractText
Repetitive exposure to low doses of acrylamide results in extensive pathological changes at the neuromuscular junction (NMJ), but it remains undetermined if a single exposure to a larger dose will produce a similar neuropathological outcome. In the present study, morphometric and ultrastructural analyses of rat soleus NMJ were performed to determine early pathological effects of an intraperitoneal injection of 100 mg/kg acrylamide. Widespread nerve terminal degeneration, terminal sprouting, and endplate lengthening were evident as early as 4 days after injection. Degenerating terminal branches were swollen and exhibited enhanced argyrophilia. Ultrastructurally, the majority of terminals exhibited axolemmal abnormalities, neurofilament accumulations, and a paucity of synaptic vesicles; occasional swollen terminals lacked neurofilaments but contained increased numbers of tubulovesicular profiles. This early morphological pattern of nerve terminal changes suggests that acrylamide may disrupt both synaptic vesicle recycling and neurofilament degradation. These findings indicate that a single high dose of acrylamide triggers pathological lesions and remodeling in motor nerve terminals virtually identical to those resulting from multiple low doses.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0041-008X
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
105
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
422-33
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Synaptic terminal degeneration and remodeling at the rat neuromuscular junction resulting from a single exposure to acrylamide.
pubmed:affiliation
Department of Pharmacology and Toxicology, College of Pharmacy, Rutgers University, Piscataway, New Jersey 08855-0789.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.