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Keywords: Thyroxine
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Journal Articles
Journal Articles
Neuroendocrinology (1994) 59 (6): 520–527.
Published Online: 08 April 2008
... µg/kg b.w. thyroxine, i.p.) for 12 days in a dose-dependent manner. Using dihydroxyphenylalanine (DOPA) accumulation in the ME as another index, we also found an increased DOPA/DA ratio in estrogen-treated hypothyroid rats, which effect could be reversed by replacement of thyroid hormone. Furthermore...
Journal Articles
Neuroendocrinology (1993) 58 (3): 338–343.
Published Online: 08 April 2008
...Rodolfo G. Goya; Marie-Claude Gagnerault; Yolanda E. Sosa; Jorge A. Bevilacqua; Mireille Dardenne It is well-established that the activity of the endocrine thymus is under neuroendocrine control. In particular, growth hormone (GH) and thyroxine (T 4 ) have been shown to be capable of reconstituting...
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Neuroendocrinology (1992) 56 (4): 453–458.
Published Online: 07 April 2008
...Laura F. Cageao; Jorge A. Ceppi; Rubén J. Boado; Angel A. Zaninovich Treatment of normal rats with diphenylhydantoin (DPH) decreases serum thyroxine (T 4 ) and triiodothyronine (T 3 ) levels without the anticipated rise in serum thyrotropin (TSH). The present work has studied the intrapituitary...
Journal Articles
Neuroendocrinology (1990) 52 (3): 303–308.
Published Online: 03 April 2008
...-release morphine (75 mg) or placebo pellet. Morphine decreased TSH by 44% at 1 h and by 83% at 3 h, and TSH remained significantly depressed by 38% through 48 h. Thyroxine (T 4 ) levels were significantly reduced from 12 to 24 h after morphine, but triiodothyronine (T 3 ) levels were not affected. When...
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Journal Articles
Neuroendocrinology (1988) 47 (6): 567–574.
Published Online: 02 April 2008
... secretion in the rat. In unanesthetized, unstressed rats with chronic catheters, 33 µg VIP/100 g body weight failed to alter triiodothyronine (TO or thyroxine (T4) levels and did not affect the thyroid secretory response to a submaximal dose of bovine TSH. In euthyroid and hyperthyroid rats, the release...
Journal Articles
Neuroendocrinology (1989) 49 (6): 659–663.
Published Online: 02 April 2008
.... The tissue specificity of these effects were evaluated by comparing the ME with the superior cervical ganglion (SCG). All animls were thyro-parathyroidectomized (Tx) or sham Tx. Tx rats were treated daily for 3 weeks with 0.15 M NaCl (solvent vehicle) or L-thyroxine (T4). Two doses of T4, 10 and 100 µg/day...
Journal Articles
Neuroendocrinology (1986) 42 (4): 351–356.
Published Online: 01 April 2008
... hypothalamus (POA-AH). The biosynthesis of 5-HT was not different in the POA-AH of dwarf mice as compared to normal mice. In the second experiment dwarf mice received saline vehicle, ovine prolactin (PRL), growth hormone (GH) or thyroxin (T4) daily for 14 days. Normal mice received saline only. Replacement...
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Neuroendocrinology (1984) 38 (3): 254–260.
Published Online: 28 March 2008
...Michael M. Kaplan There is extensive deiodinative metabolism of thyroxine (T4) in thyroid hormone target organs, including the pituitary and brain. In both rat and man, most of the 3,3’,5-triiodothyronine (T3) in the body is produced outside the thyroid gland by deiodination of T4. T3...
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Journal Articles
Neuroendocrinology (1982) 34 (6): 438–443.
Published Online: 26 March 2008
...Carey Carpenter; Paola S. Timiras The relationship between thyroid hormones and mammalian sleep organization was studied in control, hypothyroid (with and without replacement therapy) and thyroxine-injected adult male rats. The results show an increased number of awakenings during slow wave sleep...
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Neuroendocrinology (1975) 18 (2): 204–212.
Published Online: 20 March 2008
...M. Jobin; Louise Ferland; J. Côté; F. Labrie No significant change in hypothalamic TRH content was found in rats during acute (5–240 min) exposure to cold (5 °C), in spite of rapid and sustained elevations in plasma TSH and thyroxine. Plasma PRL rose markedly in the first 15 min, but returned...
Journal Articles