Regulation of the transport of leptin across the blood-brain barrier (BBB) may be crucial for its effects on food ingestion and obesity and may be responsible for 'leptin resistance'. This review summarizes current studies of leptin indicating a dynamic role of the BBB. It includes evidence for its susceptibility to change by physiological stimuli such as starvation, refeeding, and time of day. Although the short form of the leptin receptor is involved in leptin transport, it appears that other mechanisms of entry also exist. Regardless, the BBB is intimately involved with the regulation of the actions of leptin. (C) 2000 Published by Elsevier Science B.V.
机构:
LSU Pennington Biomed Res Ctr, Blood Brain Barrier Lab, Baton Rouge, LA 70808 USALSU Pennington Biomed Res Ctr, Blood Brain Barrier Lab, Baton Rouge, LA 70808 USA
Kastin, Abba J.
Pan, Weihong
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机构:
Biopotentials Sleep Ctr, 8032 Summa Ave,Suite A, Baton Rouge, LA 70809 USALSU Pennington Biomed Res Ctr, Blood Brain Barrier Lab, Baton Rouge, LA 70808 USA