Thyroid hormones homeostasis in rats refed after short-term and prolonged fasting

1996 ◽  
Vol 19 (5) ◽  
pp. 304-311 ◽  
Author(s):  
Z. Kmiec ◽  
G. Kotlarz ◽  
B. Smiechowska ◽  
A. Mysliwski
Keyword(s):  
Thyroid Hormones ◽  
Prolonged Fasting ◽  
Short Term

Thermogenic effect of thyroid hormones: interactions with epinephrine and insulin.

1990 ◽  
Vol 259 (3) ◽  
pp. E305
Author(s):  
V Piolino ◽  
K J Acheson ◽  
M J Müller ◽  
N Jeanprêtre ◽  
A G Burger ◽  
...  
Keyword(s):  
Energy Expenditure ◽  
Thyroid Hormones ◽  
Basal Insulin ◽  
Plasma Insulin ◽  
Resting Energy Expenditure ◽  
Fat Free Mass ◽  
Short Term ◽  
Epinephrine Infusion ◽  
Before And After ◽  
Basal Plasma

The interactions between thyroid hormones, epinephrine, and insulin in the regulation of energy expenditure were investigated in a group of healthy young men before and after thyroxine (T4) treatment (300 micrograms/day for 14 days) at basal plasma insulin concentrations and during hypoinsulinemia with and without epinephrine infusion (0.05 micrograms.kg fat-free mass-1.min-1). T4 treatment induced moderate hyperthyroidism and increased resting energy expenditure (RMR). The effect was more pronounced during short-term hypoinsulinemia, but hypoinsulinemia by itself did not influence RMR. Epinephrine infusion caused a significant increase in energy expenditure. The effect was most pronounced at hypoinsulinemia and with T4 treatment. Hypoinsulinemia and T4 treatment were not additive in their effects. We conclude that basal insulin concentrations mask some of the thermogenic effects of thyroid hormones and epinephrine. Thus insulin antagonism may suppress some of the thermogenic actions of thyroid hormones and epinephrine.

Short Term Under- and Over-Feeding Has No Effect on Serum Leptin or Thyroid Hormones

2011 ◽  
Vol 43 (Suppl 1) ◽  
pp. 668-669
Author(s):  
David W. DeGroot ◽  
Matthew R. Ely ◽  
J Philip Karl ◽  
Andrew J. Young
Keyword(s):  
Thyroid Hormones ◽  
Short Term ◽  
Serum Leptin

scholarly journals Short-Term Effects of Thyroid Hormones and 3,5-Diiodothyronine on Membrane Transport Systems in Chick Embryo Hepatocytes

Endocrinology ◽  
2002 ◽  
Vol 143 (5) ◽  
pp. 1660-1668 ◽  
Author(s):  
Sandra Incerpi ◽  
Paolo De Vito ◽  
Paolo Luly ◽  
Silvana Spagnuolo ◽  
Silvia Leoni
Keyword(s):  
Chick Embryo ◽  
Thyroid Hormones ◽  
Membrane Transport ◽  
Transport Systems ◽  
Short Term ◽  
Membrane Transport Systems ◽  
Short Term Effects

Short-term biological variation of serum thyroid hormones concentrations in clinically healthy cats

2020 ◽  
Vol 71 ◽  
pp. 106389 ◽  
Author(s):  
J.M. Prieto ◽  
P.C. Carney ◽  
M.L. Miller ◽  
M. Rishniw ◽  
J.F. Randolph ◽  
...  
Keyword(s):  
Thyroid Hormones ◽  
Biological Variation ◽  
Short Term ◽  
Serum Thyroid Hormones

scholarly journals The relationship between resting energy expenditure and thyroid hormones in response to short-term weight loss in severe obesity

PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0205293 ◽  
Author(s):  
Paolo Marzullo ◽  
Alessandro Minocci ◽  
Chiara Mele ◽  
Rezene Fessehatsion ◽  
Mariantonella Tagliaferri ◽  
...  
Keyword(s):  
Weight Loss ◽  
Energy Expenditure ◽  
Thyroid Hormones ◽  
Severe Obesity ◽  
Resting Energy Expenditure ◽  
Short Term ◽  
The Relationship ◽  
Resting Energy

Prolonged fasting and cortisol reduce myostatin mRNA levels in tilapia larvae; short-term fasting elevates

2003 ◽  
Vol 284 (5) ◽  
pp. R1277-R1286 ◽  
Author(s):  
Buel D. Rodgers ◽  
Gregory M. Weber ◽  
Kevin M. Kelley ◽  
Michael A. Levine
Keyword(s):  
Skeletal Muscle ◽  
Growth And Development ◽  
Muscle Growth ◽  
Time Dependent ◽  
Mrna Levels ◽  
Prolonged Fasting ◽  
Short Term ◽  
Evolutionary Mechanisms ◽  
Myostatin Gene ◽  
Prolonged Fast

Myostatin negatively regulates muscle growth and development and has recently been characterized in several fishes. We measured fasting myostatin mRNA levels in adult tilapia skeletal muscle and in whole larvae. Although fasting reduced some growth indexes in adults, skeletal muscle myostatin mRNA levels were unaffected. By contrast, larval myostatin mRNA levels were sometimes elevated after a short-term fast and were consistently reduced with prolonged fasting. These effects were specific for myostatin, as mRNA levels of glyceraldehyde-3-phosphate dehydrogenase and glucose-6-phosphatase were unchanged. Cortisol levels were elevated in fasted larvae with reduced myostatin mRNA, whereas in addition immersion of larvae in 1 ppm (2.8 μM) cortisol reduced myostatin mRNA in a time-dependent fashion. These results suggest that larval myostatin mRNA levels may initially rise but ultimately fall during a prolonged fast. The reduction is likely mediated by fasting-induced hypercortisolemia, indicating divergent evolutionary mechanisms of glucocorticoid regulation of myostatin mRNA, since these steroids upregulate myostatin gene expression in mammals.

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