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Edgar Allen (1892–1943)

By: Brendan Van Iten | Published: Jul 23, 2017

Edgar Allen identified and outlined the role of female sex hormones and discovered estrogen in the early 1900s in the US. In 1923, Allen, through his…

EstrogenHormones, SexOogenesisEstrusMenstrual Cycle

Estrogen

By: Brendan Van Iten | Published: May 18, 2017

The figure depicts three different molecular structures of estrogen found in mammals’ that differ by the arrangement of bonds and side groups.

EstrogenHormones, SexEstradiolEstroneHormones

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  • Estrogen (2)
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  • Brendan Van Iten (2)

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