Corticosterone- or metapyrone-induced alterations in adrenal function and expression of the arginine vasotocin receptor VT2 in the pituitary gland of domestic fowl, Gallus gallus

2009 ◽  
Vol 161 (2) ◽  
pp. 208-215 ◽  
Author(s):  
Dharmendra Sharma ◽  
Lawrence E. Cornett ◽  
Chandra Mohini Chaturvedi
Keyword(s):  
Pituitary Gland ◽  
Domestic Fowl ◽  
Gallus Gallus ◽  
Adrenal Function ◽  
Arginine Vasotocin ◽  
Arginine Vasotocin Receptor

THE UPTAKE OF (6,7-3H) 17β-OESTRADIOL BY TISSUES OF THE DOMESTIC FOWL

1969 ◽  
Vol 60 (2) ◽  
pp. 199-209 ◽  
Author(s):  
R. A. Hawkins ◽  
P. J. Heald ◽  
Patricia Taylor
Keyword(s):  
Pituitary Gland ◽  
Intravenous Injection ◽  
Domestic Fowl ◽  
Physiological State ◽  
Laying Hen ◽  
Adult Bird

ABSTRACT A limited investigation of the distribution of radioactivity in the tissues of the adult laying hen has been made at differing times after intravenous injection of (6,7-3H) 17β-oestradiol. Uptake by all tissues examined was maximal between 2.0 and 4.0 minutes after injection. There was a marked retention of radioactivity by the oviduct and the liver. Of cerebral tissues examined the uptake of radioactivity was greatest in the pituitary gland. This uptake varied according to the physiological state of the bird. Calculations based on the rates of clearance of intravenous (6,7-3H) 17β-oestradiol indicate that in the adult bird the rate of secretion by the ovary is of the order of 1–2.0 mg oestradiol/24 h.

Nucleotide sequences and unusual electrophoretic behavior of the W chromosome-specific repeating DNA units of the domestic fowl, Gallus gallus domesticus

Chromosoma ◽  
1987 ◽  
Vol 96 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Hiroshi Kodama ◽  
Hisato Saitoh ◽  
Masahide Tone ◽  
Satoru Kuhara ◽  
Yoshiyuki Sakaki ◽  
...  
Keyword(s):  
Domestic Fowl ◽  
Gallus Gallus ◽  
Nucleotide Sequences ◽  
Gallus Domesticus ◽  
Gallus Gallus Domesticus ◽  
W Chromosome ◽  
Electrophoretic Behavior

Contributions of glomerular and tubular mechanisms to antidiuresis in conscious domestic fowl

1985 ◽  
Vol 249 (6) ◽  
pp. F842-F850 ◽  
Author(s):  
J. N. Stallone ◽  
E. J. Braun
Keyword(s):  
Water Conservation ◽  
Domestic Fowl ◽  
Arginine Vasotocin ◽  
Quantitative Investigation ◽  
Secondary Importance ◽  
Water Excretion ◽  
Avian Kidney ◽  
Combined Actions ◽  
A Minor ◽  
Renal Water Excretion

Recently developed radioimmunoassay (RIA) techniques were employed in a quantitative investigation of the renal actions of the avian antidiuretic hormone arginine vasotocin (AVT) in the conscious domestic fowl. Constant intravenous infusion of AVT at doses of 0.125-1.00 ng X kg-1 X min-1 was used to produce plasma AVT (PAVT) concentrations (verified by RIA) over the entire range of physiological PAVT levels in the domestic fowl. Comparison of the dose-response relationships between PAVT and glomerular and tubular mechanisms of antidiuresis revealed that tubular mechanisms are of primary importance and glomerular mechanisms of secondary importance in the conservation of water by the avian kidney. The greatest proportion of the total AVT-induced reduction in renal water excretion occurred at low physiological PAVT levels (less than 5 microU/ml), prior to any significant reduction in glomerular filtration rate (GFR), and appeared to be the exclusive result of tubular mechanisms of antidiuresis. At high PAVT levels (5-16 microU/ml), glomerular and tubular mechanisms overlapped, and their effects on water conservation could not be separated. Although GFR was reduced by nearly 30% at the highest dose of AVT, only minor additional amounts of water were conserved by the combined actions of glomerular and tubular mechanisms. Thus glomerular mechanisms appear to have only a minor secondary effect on water-conserving ability of the avian kidney.

Pituitary and Adrenal Function in Undernutrition with Mental Illness

1963 ◽  
Vol 109 (461) ◽  
pp. 480-484 ◽  
Author(s):  
V. Marks ◽  
R. G. Bannister
Keyword(s):  
Mental Illness ◽  
Anorexia Nervosa ◽  
Urinary Excretion ◽  
Pituitary Gland ◽  
Anterior Pituitary ◽  
Anterior Pituitary Gland ◽  
Adrenal Function ◽  
Pituitary Function ◽  
Prolonged Starvation

Urinary excretion of adrenal metabolites, especially neutral 17-ketosteroids, is often low in patients with anorexia nervosa (Escamilla, 1949; Bliss and Branch, 1960). This has been taken (Emanuel, 1956; Greenblatt et al., 1951) to provide evidence of adreno-cortical insufficiency secondary to defective pituitary function (Sheldon, 1939; Perloff et al., 1954). According to Perloff et al. (1954) “prolonged starvation may result in functional hypopituitarism, whose differentiation from the syndrome of hypopituitary cachexia due to structural impairment of the anterior pituitary gland is at times extremely difficult, even when the accepted tests for endocrine adequacy are performed”.

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