| Fat pad-specific compensatory mass increases after varying degrees of lipectomy in Siberian hamsters. | |
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MedLine Citation:
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PMID: 9435669 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Long day-housed Siberian hamsters show compensatory mass increases in inguinal (I) white adipose tissue (WAT) after epididymal WAT pad (EWAT) removal (x) but do not increase EWAT mass after IWATx. This study tested whether EWAT is specifically unresponsive to IWATx or whether EWAT lacks responsiveness to body fat deficits in general. We also tested whether the compensatory mass increases that occur after side-specific body fat removal are unilateral or bilateral. Therefore EWAT and/or IWAT was removed unilaterally or bilaterally. The compensatory changes in WAT mass by the intact fat pads were measured 12 wk later. EWAT did not compensate for removal of its contralateral mate. Retroperitoneal WAT and IWAT showed greater compensatory mass increases ipsilateral to the side of fat pad removal when EWAT or IWAT pads were removed unilaterally but not after removal of larger amounts of body fat. These results suggest the following: 1) in general, the greater the lipectomy-induced lipid deficit, the greater is the relative fat pad mass compensation; 2) the restoration of body fat content after lipectomy may involve mechanisms that can detect the side of the lipid deficit and enhance fat deposition on this side; and 3) EWAT does not show compensatory mass increases after lipectomy. |
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Authors:
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M M Mauer; T J Bartness |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The American journal of physiology Volume: 273 ISSN: 0002-9513 ISO Abbreviation: Am. J. Physiol. Publication Date: 1997 Dec |
Date Detail:
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Created Date: 1998-02-09 Completed Date: 1998-02-09 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0370511 Medline TA: Am J Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: R2117-23 Citation Subset: IM |
Affiliation:
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Department of Biology and Psychology, Georgia State University, Atlanta 30303, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adipose Tissue
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anatomy & histology*,
physiology* Animals Cricetinae Epididymis Homeostasis Lipectomy* Male Phodopus |
| Grant Support | |
ID/Acronym/Agency:
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DK-35254/DK/NIDDK NIH HHS; MH-00841/MH/NIMH NIH HHS; MH-10803/MH/NIMH NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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