Linked Life Data

2332138

Source:http://linkedlifedata.com/resource/pubmed/id/2332138

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-6-7
pubmed:abstractText
1. The effect of probenecid on striatal dopamine depletion in acute 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated mice was examined. 2. Mice treated with a single dose of MPTP (15 mg/kg, s.c.) showed a significant depletion of striatal dopamine throughout a time-course of 7 days. Interestingly, this MPTP-induced striatal dopamine depletion was potentiated by a concomitant injection with a single dose of probenecid (250 mg/kg, i.p.). 3. However, this potentiation of dopamine depletion by probenecid was only a transient phenomenon seen at 4-5 days after the treatment. 4. In a long-term study, mice were treated with the same dosages of MPTP or probenecid plus MPTP twice a week for 5 weeks, we detected that probenecid plus MPTP caused a persistent depletion of striatal DA for 6 months. 5. During this period a partial recovery of DA levels was seen with MPTP alone-treated mice. 6. The detailed mechanisms by which probenecid causes acute potentiation and persistent long-term depletion of striatal dopamine by MPTP are still unclear. 7. With the evidence presented in this study, we determined that after the administration of MPTP in mice, the drug was rapidly metabolized in the periphery and excreted as MPTP N-oxide. 8. Probenecid was shown to inhibit the excretion of urine and urinary MPTP N-oxide shortly after MPTP administration, which may directly or indirectly increase the neurotoxic action of MPTP in mice.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0306-3623
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
181-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Effects of probenecid on striatal dopamine depletion in acute and long-term 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated mice.
pubmed:affiliation
Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178-0225.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't