Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2000-3-30
pubmed:abstractText
Leptin is produced in adipose tissue in the periphery, but its satiety effect is exerted in the CNS that it reaches by a saturable transport system across the blood-brain barrier (BBB). The short form of the leptin receptor has been hypothesized to be the transporter, with impaired transport of leptin being implicated in obesity. In Koletsky rats, the splice variant that gives rise to the short form of the leptin receptor contains a point mutation that results in marked obesity. We studied the transport of leptin across the BBB in Koletsky rats and found it to be significantly less than in their lean littermates. By contrast, Sprague-Dawley rats matched in weight to each of these two groups showed no difference in the blood-to-brain influx of leptin. HPLC showed that most of the leptin crossing the BBB in rats remained intact and capillary depletion showed that most of the leptin reached the parenchyma of the brain. The results indicate that the short form of the leptin receptor is involved in the transport of leptin across the BBB.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0196-9781
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1449-53
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Decreased transport of leptin across the blood-brain barrier in rats lacking the short form of the leptin receptor.
pubmed:affiliation
Veterans Affairs Medical Center and Tulane University School of Medicine, New Orleans, LA 70112-1262, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.