Steroid hormone secreted by

Because steroids are lipophilic, they diffuse easily through the cell membranes, and therefore have a very large distribution volume. In their target tissues, steroids are concentrated by an uptake mechanism which relies on their binding to intracellular proteins (or " receptors ", see below). High concentration of steroids are also found in adipose tissue, although this is not a target for hormone action. In the human male, adipose tissue contains aromatase activity, and seems to be the main source of androgen-derived estrogens found in the circulation. But most of the peripheral metabolism occurs in the liver and to some extent in the kidneys, which are the major sites of hormone inactivation and elimination, or catabolism (see below).

It was the ethical questions that were new. Is GH not a wise use of finite healthcare resources, or is the physician’s primary responsibility to the patient? If GH is given to most extremely short children to make them taller, will the definition of “extremely short” simply rise, negating the expected social benefit? If GH is given to short children whose parents can afford it, will shortness become a permanent mark of lower social origins? More of these issues are outlined in the ethics section. Whole meetings were devoted to these questions; pediatric endocrinology had become a specialty with its own bioethics issues.

Steroid hormone secreted by

steroid hormone secreted by

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