Presence of the brown fat-specific mitochondrial uncoupling protein and iodothyronine 5'-deiodinase activity in subcutaneous adipose tissue of neonatal lambs

Subcutaneous adipose tissue of neonatal lambs has been examined for the presence of markers diagnostic of thermogenic brown fat. Uncoupling protein, uncoupling protein mRNA, and iodothyronine 5'-deiodinase activity were each detected in subcutaneous adipose tissue, as well as in the major inter...

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Veröffentlicht in:FEBS letters 1993-05, Vol.322 (1), p.76-78
Hauptverfasser: Trayhurn, Paul, Thomas, Moira E.A., Duncan, Jacqueline S., Nicol, Fergus, Arthur, John R.
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container_end_page 78
container_issue 1
container_start_page 76
container_title FEBS letters
container_volume 322
creator Trayhurn, Paul
Thomas, Moira E.A.
Duncan, Jacqueline S.
Nicol, Fergus
Arthur, John R.
description Subcutaneous adipose tissue of neonatal lambs has been examined for the presence of markers diagnostic of thermogenic brown fat. Uncoupling protein, uncoupling protein mRNA, and iodothyronine 5'-deiodinase activity were each detected in subcutaneous adipose tissue, as well as in the major internal fat depot (perirenal), of newborn lambs. These brown fat markers were not present, however, in adipose tissue of adult sheep. It is concluded that subcutaneous fat in newborn lambs is functionally ‘brown’, and similar to the internal fat; subcutaneous and internal adipose tissues follow a similar developmental path - from ‘brown’ to ‘white’.
doi_str_mv 10.1016/0014-5793(93)81115-G
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subjects Adipose Tissue - enzymology
Adipose Tissue - metabolism
Animals
Animals, Newborn
Base Sequence
Biological and medical sciences
Brown adipose tissue
Carrier Proteins - metabolism
Fundamental and applied biological sciences. Psychology
Iodide Peroxidase - metabolism
Iodothyronine 5'-deiodinase
Ion Channels
Membrane Proteins - metabolism
Mitochondrial Proteins
Molecular Sequence Data
Northern blotting
Oligodeoxyribonucleotides
Sheep
Uncoupling Agents - metabolism
Uncoupling protein
Uncoupling Protein 1
Vertebrates: skin, associated glands, phaneres, light organs, various exocrine glands (salt gland, uropygial gland...), adipose tissue, connective tissue
Western blotting
White adipose tissue
title Presence of the brown fat-specific mitochondrial uncoupling protein and iodothyronine 5'-deiodinase activity in subcutaneous adipose tissue of neonatal lambs
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