Citations
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Journal ArticleDOI
Cold-induced enhancement of avian uncoupling protein expression, heat production, and triiodothyronine concentrations in broiler chicks
Anne Collin,Johan Buyse,Pieter Van As,Veerle Darras,Ramon D. Malheiros,Vera Maria Barbosa de Moraes,Geert Reyns,Mohammed Taouis,Eddy Decuypere +8 more
TL;DR: This study describes for the first time the induction of avUCP mRNA expression by low temperature in chickens, as it has been previously shown in ducklings, and supports the possible involvement of av UCP in avian thermogenesis.
Journal ArticleDOI
The importance of the peripheral thyroid hormone deiodination in adaptation to ambient temperature in the chicken (Gallus domesticus)
Peter Rudas,G. Pethes +1 more
TL;DR: Evidence is obtained for a major role of thyroxine to triiodothyronine (and/or reverse-triiodothyRONine) conversion in the early phase of cold and warm acclimation and the idea of autoregulation of thyroid hormone metabolism is discussed.
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Immunoreactivity to vasoactive intestinal polypeptide (VIP) and thyreotropin-releasing hormone (TRH) in hypothalamic neurons of the domesticated pigeon (Columba livia). Alterations following lactation and exposure to cold.
Péter Péczely,József Kiss +1 more
TL;DR: The results suggest that VIP- and TRH-containing pathways in the pigeon hypothalamus are involved in the mediation of neuroendocrine responses.
Journal ArticleDOI
Ontogeny of the effect of purified chicken growth hormone on the liver 5' monodeiodination activity in the chicken: reversal of the activity after hatching.
TL;DR: No effect of c-GH could be found in 2- to 4-week-old growing chickens, but in 5- week-old GH-injected animals the plasma T4 and rT3 level decreased again, although no significant effect on T3 or liver 5'-D activity could be demonstrated.
Journal ArticleDOI
Thyroid hormone deiodination in birds
TL;DR: Deiodination in birds is subject to regulation by hormones from several endocrine axes, including thyroid hormones, growth hormone and glucocorticoids, and is also influenced by external parameters, such as nutrition, temperature, light and also a number of environmental pollutants.
References
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Journal ArticleDOI
Metabolism and Cellular Function in Cold Acclimation
R. E. Smith,Dorothy Jared Hoijer +1 more
Journal ArticleDOI
Synthesis of 125I Monolabelled 3, 5, 3′-Triiodothyronine and Thyroxine of Maximum Specific Activity for Radioimmunoassay
TL;DR: With these high specific activity products, which are at least 10 times higher than any previously described, it becomes possible to determine free T3 (and T4) directly in ultrafiltrates or dialysates of plasma samples.
Journal ArticleDOI
Extrathyroidal conversion of thyroxine to triiodothyronine in a bird: The peking duck
H.S. Astier,W.S. Newcomer +1 more
TL;DR: The data strongly suggest an extrathyroidal conversion of T 4 to T 3 in this experiment, which would explain why T 4 and T 3 were undetectable in plasma of the thyroidectomized drake.
Journal ArticleDOI
Hypothalamo-adenohypophyseal-thyroid interrelationships in the chick embryo. I TRH and TSH sensitivity.
TL;DR: The embryonic chick thyroid was shown to be sensitive to TSH as early as Day 6.5, and the adenohypophyses of 6-day-old chick embryos were shown to respond to synthetic TRH as indicated by a statistically significant rise in circulating thyroxine levels.
Journal ArticleDOI
Thin-layer chromatography for thyroid hormones.
Charles D. West,Charles D. West,Anthony W. Wayne,Anthony W. Wayne,Virginia J. Chavré,Virginia J. Chavré +5 more
TL;DR: This TLC method has been used successfully to identify metabolites of l -thyroxine-131I (T4) in plasma and bile and is worthy of consideration in any situation requiring an effective and convenient method for the separation of thyroid hormones.
Related Papers (5)
Extrathyroidal conversion of thyroxine to triiodothyronine in a bird: The peking duck
H.S. Astier,W.S. Newcomer +1 more