| Plasma leptin decreases during lactation in insectivorous bats. | |
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MedLine Citation:
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PMID: 10093906 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We previously demonstrated high leptin levels during late pregnancy in little brown bats (Myotis lucifugus). We now extend these observations to a second species, the big brown bat (Eptesicus fuscus), and also report that leptin increases after the first trimester of pregnancy. Leptin decreased to baseline 1 week following parturition, with a half-time decay of 2 days. During lactation, leptin was significantly correlated with body mass in E. fuscus, but not in M. lucifugus. No circadian pattern of leptin was observed in M. lucifugus. The decrease in post-partum leptin in bats may be partly explained by loss of putative placental leptin. The continued decrease may reflect depletion of body fat during this energy demanding period, at least in Eptesicus. Changes in leptin during lactation appeared to be independent of circadian effects and time of sampling. Our study provides additional evidence that leptin increases during pregnancy and declines during lactation in a free-ranging mammal, supporting the hypothesis that leptin plays important but yet undetermined roles in reproduction. |
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Authors:
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T H Kunz; E Bicer; W R Hood; M J Axtell; W R Harrington; B A Silvia; E P Widmaier |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology Volume: 169 ISSN: 0174-1578 ISO Abbreviation: J. Comp. Physiol. B, Biochem. Syst. Environ. Physiol. Publication Date: 1999 Feb |
Date Detail:
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Created Date: 1999-04-27 Completed Date: 1999-04-27 Revised Date: 2009-06-08 |
Medline Journal Info:
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Nlm Unique ID: 8413200 Medline TA: J Comp Physiol B Country: GERMANY |
Other Details:
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Languages: eng Pagination: 61-6 Citation Subset: IM |
Affiliation:
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Department of Biology, Boston University, MA 02215, USA. kunz@bu.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Chiroptera / blood* Circadian Rhythm Female Lactation / blood* Leptin Pregnancy Proteins / metabolism* Species Specificity |
| Chemical | |
Reg. No./Substance:
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0/Leptin; 0/Proteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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