24-Hour Pattern of Circulating Prolactin and Growth Hormone Levels and Submaxillary Lymph Node Immune Responses in Growing Male Rats Subjected to Social Isolation

Endocrine ◽  
2004 ◽  
Vol 25 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Ana I. Esquifino ◽  
María P. Alvarez ◽  
Pilar Cano ◽  
Fernando Chacon ◽  
Carlos F. Reyes Toso ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Lymph Node ◽  
Immune Responses ◽  
Social Isolation ◽  
Male Rats ◽  
Hormone Levels

Effects of thyroid and growth hormone deficiency, and food restriction on heart mass, with and without added stress (carboxyhemoglobinemia)

1985 ◽  
Vol 63 (6) ◽  
pp. 642-648 ◽  
Author(s):  
David G. Penney ◽  
Bernd G. Barthel
Keyword(s):  
Growth Hormone ◽  
Food Restriction ◽  
Male Rats ◽  
Hormone Deficiency ◽  
Cardiac Growth ◽  
Hormone Levels ◽  
Cardiac Atrophy ◽  
Body Weights ◽  
Heart Mass ◽  
The Right

The roles of thyroid and growth hormone, and food restriction in maintenance of heart mass and in carbon monoxide-stimulated cardiac growth were examined. First, thyroidectomized and normal adult male rats inhaled up to 500 ppm CO in air for 42 days. Combined ventricular weights of thyroidectomized rats inhaling CO and air were 12 and 23% smaller than predicted, respectively, while the combined ventricular weight of normal rats inhaling CO was 29% larger than predicted. Thyroidectomy increased the mass of the left ventricle relative to the right ventricle; this was reversed by CO treatment. While the hematocrit increased in thyroidectomized–CO rats, it was lower than in normal–CO rats: likewise the hematocrit of thyroidectomized–AIR rats was lower than that of normal rats in air. Body weights of the thyroidectomized rats were 57% that of normals. As additional controls, two groups of normal rats (one AIR, one CO) were maintained at the same body weight as the thyroidectomized rats, by adjusting food intake. Combined ventricular weight was less than predicted in AIR rats and failed to increase in CO animals, while hematocrits were the same as normals in air and in CO. Serum thyroxine (T4) and growth hormone levels assayed in thyroidectomized rats were less than 15 and 25% of normal rats, respectively. Growth hormone levels were not altered by CO inhalation in thyroidectomized and in normal rats. Levels of both hormones were normal in food-restricted rats. While thyroidectomy produced cardiac atrophy, cardiac growth was stimulated by CO inhalation, although heart mass then only approached that of normals in air. Food restriction also produced cardiac atrophy, but CO inhalation failed to stimulate heart growth.

THE EFFECT OF THE PROGESTOGEN ETHYNODIOL DIACETATE ON GLUCOSE, INSULIN, AND GROWTH HORMONE AFTER SIX MONTHS TREATMENT

1972 ◽  
Vol 70 (2) ◽  
pp. 373-384 ◽  
Author(s):  
W. N. Spellacy ◽  
W. C. Buhi ◽  
S. A. Birk
Keyword(s):  
Growth Hormone ◽  
Blood Glucose ◽  
Plasma Insulin ◽  
Tolerance Test ◽  
Metabolic Effects ◽  
Oral Glucose ◽  
Hormone Levels ◽  
Glucose Levels ◽  
Ethynodiol Diacetate ◽  
Tolerance Curve

ABSTRACT Seventy-one women were treated with a daily dose of 0.25 mg of the progestogen ethynodiol diacetate. They were all tested with a three-hour oral glucose tolerance test before beginning the steroid and then again during the sixth month of use. Measurements were made of blood glucose and plasma insulin and growth hormone levels. There was a significant elevation of the blood glucose levels after steroid treatment as well as a deterioration in the tolerance curve in 12.9% of the women. The plasma insulin values were also elevated after drug treatment whereas the fasting ambulatory growth hormone levels did not significantly change. There was a significant association between the changes in glucose and insulin levels and the subject's age, control weight, or weight gain during treatment. The importance of considering the metabolic effects of the progestogen component of oral contraceptives is stressed.

Growth hormone levels in diabetes. Correlation with the clinical control of the disease

Diabetes ◽  
1976 ◽  
Vol 25 (3) ◽  
pp. 167-172 ◽  
Author(s):  
R. Vigneri ◽  
S. Squatrito ◽  
V. Pezzino ◽  
S. Filetti ◽  
S. Branca ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Hormone Levels ◽  
Clinical Control

Effects of postnatal social isolation on hormonal and immune responses of pigs to an acute endotoxin challenge

2004 ◽  
Vol 82 (2-3) ◽  
pp. 503-511 ◽  
Author(s):  
M TUCHSCHERER ◽  
E KANITZ ◽  
B PUPPE ◽  
A TUCHSCHERER ◽  
B STABENOW
Keyword(s):  
Immune Responses ◽  
Social Isolation ◽  
Endotoxin Challenge
Sign in / Sign up

Export Citation Format

Share Document