Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1989-12-20
pubmed:abstractText
The effect of diabetes-induced chronic tyrosine (Tyr) deficiency on dopamine (DA) synthesis in different areas of the mesotelencephalic DA system was examined. Diabetes was induced using streptozotocin. In vivo Tyr hydroxylation was used as an index of DA synthesis. The brain areas examined were prefrontal cortex (PFC), pyriform cortex (PYR), olfactory tubercle (OT), caudate-putamen (CP), substantia nigra (SN), and ventral tegmental area (VTA). Significant decreases in Tyr hydroxylation were observed in PFC, CP, and PYR. The largest decrease was seen in the PFC. Variations in tissue Tyr levels were shown to account for 62% of the variability in Tyr hydroxylation in the PFC, and 23% of the variability in the CP; a significant correlation between Tyr levels and Tyr hydroxylation was not seen in the other brain areas. The mechanisms underlying this regionally selective effect, and possible clinical relevance are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0300-9564
pubmed:author
pubmed:issnType
Print
pubmed:volume
78
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
221-9
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Regionally-specific alterations in mesotelencephalic dopamine synthesis in diabetic rats: association with precursor tyrosine.
pubmed:affiliation
Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut.
pubmed:publicationType
Journal Article