Its Function in Measuring the Endocrine Hormone
The hormone secreted by the human endocrine gland is a high-
efficiency bio-active substance which plays its role in the
metabolism of organism, in regulating and controlling the growth,
development and the reproductive mechanism of the human body, and
It is a very in enhancing the adaptability of the organism.
important physiological regulating agent in the organism.
it is only a very tiny amount. RIA is the most effective
means for detection and measuring of the endocrine
Usually
hormone. The human body contains a large variety of endocrine
hormones; and the main hormones can roughly be summed up in
five classes: (1) various anterior pituitary hormones secreted
from the cerebral pituitary gland (e.g. TSH, FSH, LH, ACTH, etc.)
(2) related hormones secreted from the thyroid gland (e.g. T3 T4
etc.); (3) hormones secreted from adrenal cortex (e.g. cortisol,
aldosterone); (4) hormones secreted from the pancreas gland (e.g.
insulin, glucagon, etc.); and (5) hormones secreted from the
stomach and intestines (e.g. gastric secretion, cholecystokinin).
Any abnormality in the content of endocrine in the blood can
cause disease. For example, over-secretion of thyroid hormone
may lead to hyperthyroidism; while insufficient secretion thereof
may lead to hypothyroidism. Similar cases also happen to other
kinds of hormones. Therefore, the measuring of the content of
hormones in the blood can be employed to diagnose diseases,
check the endocrine function and to conduct basic medical science
research.
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