← Back to Search
Effects Of Hypothyroidism On The Brown Adipose Tissue Of Adult Rats: Comparison With The Effects Of Adaptation To Cold.
G. Mory, D. Ricquier, P. Pesquiès, P. Hémon
Published 1981 · Biology, Medicine
Download PDFAnalyze on Scholarcy
Hypothyroidism was induced in adult rats by oral absorption of methimazole and its effects on brown adipose tissue (BAT) were studied. Hypothyroidism partially mimicked the effects of chronic exposure to cold: BAT weight and its DNA content were increased and the mitochondrial components (proteins, phospholipids) of the tissue were greatly enhanced when expressed per unit of fresh tissue weight. Moreover, hypothyroidism had the same effects as adaptation to cold on the fatty-acid composition of both total and mitochondrial phospholipids. Basal respiratory rate and total cytochrome C oxidase activity of the tissue were also increased. However, the increase in the concentration of the '32,000 mol. wt protein', a polypeptide which regulates the dissipation of heat by BAT, was smaller and non-selective in hypothyroid rats. The amount of this protein was increased per mg tissue, but not per mg mitochondrial proteins, as in rats adapted to cold. Furthermore, in contrast with the large mobilization of the lipid stores in BAT of euthyroid animals, the BAT lipid stores of hypothyroid rats were not mobilized during the first hours of exposure to cold. It may be concluded that (a) hypothyroidism induces several alterations in BAT which are characteristic of an active thermogenic state (this may be because of the response of the organism to the deficiency of thermogenesis induced by hypothyroidism), (b) this potential increase in thermogenic capacity in the BAT of hypothyroid rats has probably a limited physiological role, since thyroid hormones are necessary for the mobilization of the tissue lipids which are the fuel for production of heat and (c) these data provide evidence for a limited role of thyroid hormones in the tropic response of BAT during adaptation to cold.
This paper references
Biogenic amines and the trophic response of brown adipose tissue
T. Barnard. (1980)
Thyroid cold acclimation influences on norepinephrine metabolism in brown fat.
D. R. Kennedy (1977)
THE SUBMITOCHONDRIAL LOCALIZATION OF MONOAMINE OXIDASE
C. Schnaitman (1967)
GDP binding to rat brown fat mitochondria: effects of thyroxine at different ambient temperatures.
U. Sundin (1981)
Neuron-target interactions. Neurosciences Research Program Bulletin 14,211^153
B. H. Smith (1976)
Brown-adipose-tissue mitochondria: photoaffinity labelling of the regulatory site of energy dissipation.
G. M. Heaton (1978)
Some Aspects of Rat Metabolism in the Brown Adipose Tissue of Normal and Hypothyroid Rats during Early Postnatal Development
P. Hémon (1976)
Two Cases of absence of the Thyroid body, and symmetrical swellings of fat tissue at the sides of the neck, connected with defective cerebral development.
T. B. Curling (1850)
Effects of chronic treatments upon the brown adipose tissue of rats. II. Comparison between the effects of catecholamine injections and cold adaptation.
G. Mory (1980)
Neuron-target cell interactions.
B. Smith (1976)
Mitochondrial protein alteration in active brown fat: a soidum dodecyl sulfate-polyacrylamide gel electrophoretic study.
D. Ricquier (1976)
Effect of thyroid status and cold stress on tyrosine hydroxylase activity in adrenal gland and brown adipose tissue.
N. Zenker (1976)
Effects of chronic treatments upon the brown adipose tissue of young rats
D. Ricquier (2004)
Effets de l ' hyperthyroidisme chronique et de l ' exposition prolongée au froid sur le tissu adipeux brun du rat . II ADN . protéines , enzymes oxydatifs
G. Mory (1975)
Increased purine nucleotide binding, altered polypeptide composition, and thermogenesis in brown adipose tissue mitochondria of cold-acclimated rats.
M. Desautels (1978)
Ultrastructure and biochemical
J. F. 515-522. Thomson (1969)
The effects of thyroxine and isopropylnoradrenaline on cytochrome oxidase activity in brown adipose tissue.
H. Heick (1973)
The effects of thyroxine
J. Leblanc (1973)
The influence of methimazole on the catecholamine excretion of cold-stressed rats.
G. Johnson (1967)
Quelques aspects de la biochimie du tissu adipeux brun interscapulaire chez le rat blanc
J. P. Lachance (1953)
Catecholamine metabolism in thyroid disease. II. Norepinephrine secretion rate in hyperthyroidism and hypothyroidism.
P. Coulombe (1977)
ULTRASTRUCTURAL AND BIOCHEMICAL CHANGES IN BROWN FAT IN COLD-EXPOSED RATS
J. Thomson (1969)
Alterations of mitochondrial phospholipids in the rat brown adipose tissue after chronic treatment with cold or thyroxine
D. Ricquier (1975)
Radiodosage ultrasensible de la thyroxine par la méthode de compétition
E. Vigouroux (1972)
Quelques aspects de la biochimie du tissu adipeux brun interscapulaire chez le rat
J. P. Lachance (1953)
Brown adipose tissue mitochondria
D. Nicholls (1979)
Oxygen consumption of brown adipose tissue in normal and hypothyroid mice.
H. Ikemoto (1967)
Brown fat and thermogenesis.
R. E. Smith (1969)
The lipoprotein lipase activity of brown adipose tissue during early post-natal development of the normal and hypothyroid rat.
P. Hémon (1975)
On Normal Tumour-Like Formations of Fat in Man and the Lower Animals
S. Shattock (1909)
Effects of cold adaptation and re-adaptation upon the mitochondrial phospholipids of brown adipose tissue.
D. Ricquier (1978)
A Study of Phospholipids and Triglycerides in Several Tissues of the Rat during Fetal and Neonatal Development
D. Ricquier (1976)
Cold acclimation of hypothyroid rats.
E. A. Sellers (1974)
THERMOGENESIS OF BROWN ADIPOSE TISSUE IN COLD-ACCLIMATED RATS.
R. E. Smith (1964)
Isolation of the uncoupling protein from brown adipose tissue mitochondria
C. S. Lin (1980)
Effect of hypothyroidism and chronic cold exposure upon the brown adipose tissue of adult rats
G. Mory (1977)
Effects of thyroid hormones and cold exposure on turnover of norepinephrine in cardiac and skeletal muscle.
J. Tedesco (1977)
A study of the conditions and mechanism of the diphenylamine reaction for the colorimetric estimation of deoxyribonucleic acid.
Kenneth Burton (1956)
Alterations of mitochondrial
P. Hémon (1975)
Oxygen consumption of brown
H. Ikemoto (1967)
The possible role of thyroid hormone in the response of brown adipose tissue to chronic cold
This paper is referenced by
Increased alpha 1-adrenoceptor density in brown adipose tissue indicates recruitment drive in hypothyroid rats.
A. Dicker (1992)
T(3) stimulates resting metabolism and UCP-2 and UCP-3 mRNA but not nonphosphorylating mitochondrial respiration in mice.
M. Jekabsons (1999)
The Thermogenic Effect of Thyroid Hormone and Its Clinical Implications
J. Silva (2003)
CHAPTER NINE – Temperature Regulation
L. C. Wang (1989)
Effect of noradrenaline chronic administration on brown fat phospholipids
G. Mory (1988)
Biochemical Mechanisms and Control of Cold-Induced Cellular Thermogenesis in Placental Mammals
B. Horwitz (1989)
Temperature Homeostasis in Transgenic Mice Lacking Thyroid Hormone Receptor-α Gene Products
H. Marrif (2005)
Multiple regulation of S14 gene expression during brown fat differentiation.
A. Pérez-Castillo (1993)
Evidence for a compensated thermogenic defect in transgenic mice lacking the mitochondrial glycerol-3-phosphate dehydrogenase gene.
R. A. DosSantos (2003)
Effects of thyroxine and 3,5,3'-triiodothyronine in brown adipose tissue of rats.
M. L. Puerta (1984)
The brown adipose tissue of hyperthyroid rats. A biochemical and ultrastructural study
M. Masini (1990)
Depressed thermogenesis but competent brown adipose tissue recruitment in mice devoid of all hormone-binding thyroid hormone receptors.
V. Golozoubova (2004)
A Cross-Sectional Study To Evaluate The Prevalence Of Thyroid Disorders Between Diabetic Patients In Hilla City Manar
Mohammed Hassan Al-Murshidi (2016)
Thermogenesis and fatty acid composition of brown adipose tissue in rats rendered hyperthyroid and hypothyroid-with special reference to docosahexaenoic acid.
S. Saha (1998)
THYROID DYSFUNCTION IN PATIENTS WITH TYPE 2 DIABETES MELLITUS AT TERTIARY CARE CENTRE
V. Vikhe (2013)
Thermogenic Response in the Hyperthyroid and Hypothyroid
F. Saraç (2005)
Functionally enhanced brown adipose tissue in Ames dwarf mice
J. Darcy (2017)
The role of brown adipose tissue thermogenesis in energy balance
J. Himms-Hagen (1985)
Effect of Cold Exposure on Serum DBH and Interscapular Brown Adipose Tissue MAO Activity in Hypothyroid T3‐ and T4‐Treated Rats
G. Cvijić (2004)
Characterisation of Functional Brown Adipose Tissue In Adult Humans
J. Orava (2014)
Re-evaluation of apparent hypometabolism in iron-deficient rats
J. Beard (1992)
Thermogenic mechanisms and their hormonal regulation.
J. Silva (2006)
Factors controlling brown adipose tissue development.
D. Ricquier (1985)
Brown adipose tissue: function and physiological significance.
B. Cannon (2004)
Factors affecting brown adipose tissue activity in animals and man.
D. Ricquier (1984)
Cardiolipins and biomembrane function.
F. Hoch (1992)
Type-2 iodothyronine 5'deiodinase (D2) in skeletal muscle of C57Bl/6 mice. II. Evidence for a role of D2 in the hypermetabolism of thyroid hormone receptor alpha-deficient mice.
W. Ramadan (2011)
Intracellular conversion of thyroxine to triiodothyronine is required for the optimal thermogenic function of brown adipose tissue.
A. Bianco (1987)
The Relationship between Type 2 Diabetes Mellitus and Related Thyroid Diseases
Chaoxun Wang (2013)
Biochemical isthmus [nexus] between type 2 diabetes mellitus and thyroid status-an update.
R. Jayanthi (2019)
Brown fat thermogenesis and exercise: two examples of physiological oxidative stress?
G. B. D. Quiroga (1992)
Thermogenic mechanisms in brown fat.
D. G. Nicholls (1984)See more