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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-8-9
pubmed:abstractText
Diisopropyl phosphorofluoridate (DFP) is an organophosphorus ester, and a single dose (1.7 mg/kg, sc.) of this compound produces mild ataxia in hens in 7-14 days and a severe ataxia or paralysis (OPIDN) in three weeks. OPIDN is associated with axonal swelling and their degeneration. We have previously observed alteration in neurofilament (NF) protein levels in the spinal cord of DFP-treated hens. The main objective of this investigation was to study NF protein levels in the sciatic nerves (SN) of hens, in which OPIDN has been potentiated by phenylmethylsulfonyl fluoride (PMSF) post-treatment. PMSF is known to protect DFP-treated (1.7 mg/kg) hens from developing OPIDN if injected before, and potentiate OPIDN if injected after the administration of DFP (0.5 mg/kg). The potentiation of OPIDN was accompanied by earlier elevation of NF proteins in the SN particulate fraction. In contrast, SN supernatant fraction showed a transient fall in NF protein levels in potentiation OPIDN. Out of the two other cytoskeletal proteins (i.e., tubulin, tau) studied in this investigation, tubulin also showed earlier elevation in its level in the particulate fraction in potentiated OPIDN. The earlier elevation of NF protein levels in SN particulate fraction in potentiated OPIDN suggested the possible involvement of NFs in delayed neurotoxicity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0364-3190
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
235-43
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Alteration in cytoskeletal protein levels in sciatic nerve on post-treatment of diisopropyl phosphorofluoridate (DFP)-treated hen with phenylmethylsulfonyl fluoride.
pubmed:affiliation
Neurotoxicology Laboratory, School of Life Science, University of Science and Technology of China, Hefei, Anhui, PR China.
pubmed:publicationType
Journal Article