Method for measurement of bioavailable testosterone
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United States of America Patent
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Mar 13, 2018
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N/A
app pub date -
Sep 27, 2016
filing date -
Mar 18, 2014
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Abstract
Provided are methods for determining level of bioactive testosterone in a biological sample. In one aspect, aromatase enzyme is utilized to convert free, bio-available testosterone into estradiol and the amount of estradiol is measured before and after the addition of enzyme. The difference in measurements provides the amount of bioactive testosterone in the sample. In another aspect, a competitor of testosterone binding to SHBG is utilized to displace testosterone bound to SHBG. Measurements of total testosterone in the sample before addition of competitor and afterwards are taken, such that the delta reflects the amount of testosterone that was bound on SHBG.
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