PMID: 6407891May 1, 1983Paper

Concentrations of triiodothyronine, growth hormone, and luteinizing hormone in the plasma of thyroidectomised fowl (Gallus domesticus)

General and Comparative Endocrinology
S HarveyH Klandorf

Abstract

Surgical thyroidectomy increased (P less than 0.05) the basal concentrations of growth hormone (GH) and luteinizing hormone (LH) in the plasma of 10- to 12-week-old domestic fowl. The administration of thyrotrophin releasing hormone (TRH) (100 micrograms, sc) increased (P less than 0.01) the GH concentration in both intact and thyroidectomised birds. The magnitude of the TRH-induced increase in GH level was greater (P less than 0.01) in thyroidectomised birds than in intact controls. Although TRH had no effect on LH secretion in the controls, it induced a small (P less than 0.05) rise in the plasma LH level in thyroidectomised birds. In both the intact and thyroidectomised birds the LH concentration was enhanced (P less than 0.05) following the administration of LH-releasing hormone (LH-RH) (20 micrograms, sc). The increase in the LH level by LH-RH in the thyroidectomised birds was greater (P less than 0.001) than that in the intact controls. Plasma GH concentrations were unaffected by LH-RH treatment. These results suggest that thyroid hormones inhibit the secretion of LH and GH in birds. In thyroidectomised birds low levels of immunoreactive triiodothyronine (T3)-like material were measurable in the circulation, despite the a...Continue Reading

References

Mar 1, 1978·General and Comparative Endocrinology·H KlandorfR Sterling
May 1, 1976·General and Comparative Endocrinology·B C WentworthG P Birrenkott
May 1, 1977·The Journal of Endocrinology·S Harvey, C G Scanes
Nov 1, 1974·Endocrinology·J N WilkinsW P Vanderlaan
Jul 1, 1973·The Journal of Clinical Endocrinology and Metabolism·A L RubinP H Forsham
Nov 1, 1972·British Poultry Science·C G Scanes, B K Follett
Feb 1, 1972·The Journal of Endocrinology·B K FollettF J Cunningham
Dec 1, 1981·General and Comparative Endocrinology·H KlandorfM G Macleod

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Citations

Aug 1, 1984·General and Comparative Endocrinology·G E MooreG Goldspink
Jan 1, 1987·Developmental and Comparative Immunology·S E Bachman, M M Mashaly
Jan 1, 1986·Comparative Biochemistry and Physiology. A, Comparative Physiology·T R HallC G Scanes
Oct 1, 1984·General and Comparative Endocrinology·H KlandorfS Harvey
Dec 1, 1984·The Journal of Experimental Zoology·D B King, J D May
Nov 25, 2003·Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine·A SechmanH Paczoska-Eliasiewicz
Oct 13, 2021·Scientific Reports·Adewunmi Omolade OmotosoKlaus Wimmers

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