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Immunoassay reagents intended to perform qualitative and/or quantitative analyses on a body fluid sample (typically serum) to determine androstenedione, an androgen mainly secreted by the adrenal glands that is an immediate precursor of testosterone. Androstenedione is a sex steroid vital for human reproduction. High levels of circulating androstenedione are found in diseases such as polycystic ovaries, congenital adrenal hyperplasia, and adrenal tumors.
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