The northern spotted owl (Strix occidentalis caurina; spotted owl) is of conservation concern and endemic to mature forests of the Pacific Northwest. Adult survival has a strong effect on population growth rate, but juvenile survival and recruitment are also important components of population change. Despite the importance of this life...
Two experiments involving 33 Holstein cows were conducted
for the primary purpose of studying the effects of flumethasone (a
synthetic glucocorticoid) on milk and milk constituent yields. The
secondary purpose was to compare udder health, reproductive performance,
and body weight changes of cows on flumethasone therapy.
Nine Holstein cows were...
The relationship of glucocorticoid secretion to light-induced,
early-winter priming of pelage in ranch mink was investigated. Sixteen
Standard Dark, mature, female mink were exposed to natural light conditions
of 45° North latitude beginning on December 13, 1977. A 2x4 cm
area of the right hip of each animal was sheared...
Plasma concentrations of cortisol, a glucocorticoid hormone that
is immunosuppressive in mammals, increase during stress and
smoltification of salmonids. There was a reduction in the ability of
lymphocytes to generate antibody producing cells (APC) in vivo
concurrent with increased plasma cortisol titers during smoltification
of coho salmon (Oncorhvnchus kisutch). Cortisol...
Glucocorticoids are growth-inhibiting steroids. They have been reported to reduce
muscle growth by reducing protein synthesis. However, their actions on muscle protein
degradation remain equivocal. Glucocorticoids have been reported to transiently increase
muscle protein degradation, to not affect this process and to reduce muscle protein
degradation. Reasons for these conflicting...
Numerous human conditions would be improved if therapies to encourage tissue regeneration were available. The goal of regenerative medicine is to encourage the body's intrinsic ability to repair and restore tissues lost by disease, injury or aging. While certain vertebrates have the inherent capacity to regenerate, mammals do not. To...