The endocrine system is the main chemical-regulating system of an organism. The main messengers of the endocrine system are hormones, which are chemicals made and secreted by endocrine glands or neurosecretory cells. Hormones regulate metabolic rate, growth, maturation, and reproduction.

The Immunoassay protein protein interaction technique specific for each hormone is the best way to diagnose the endocrine hormone.
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MP Biomedicals Endocrinology provides a wide range of immunoassay kits (RIA) for different qualitative determination using serum samples.
The MP Biomedicals Total T4 Monoclonal Radioimmunoassay is intended for the quantitative determination of total thyroxine levels in serum and plasma.
The MP Diagnostics Free T3 radioimmunoassay kit is for the quantitative determination of free triiodothyronine (T3) In serum or plasma.
The MP Diagnostics Conjugated Bile Acids RIA is for the quantitative determination of conjugated bile acids in serum or plasma.
The MP Diagnostics ImmuChem Corticosterone Double Antibody RIA is specifically desgined for use in laboratory mice and rats. Utilizing the combination of a highly specific antiserum for corticosterone and a proprietary blocki.