Now showing items 1-5 of 5

    • Clinical Tests of Estrogen Injections on Women with Abnormal Menstrual Cycles During the Early 1920s by Jean Paul Pratt and Edgar Allen 

      Van Iten, Brendan
      In the early twentieth century US, Jean Paul Pratt and Edgar Allen conducted clinical experiments on women who had abnormal menstrual cycles. During the clinical tests, researchers injected the hormone estrogen into their ...
    • Edgar Allen (1892–1943) 

      Van Iten, Brendan
      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 research with mice, isolated the primary ovarian hormone, later renamed ...
    • Edgar Allen and Edward A. Doisy's Extraction of Estrogen from Ovarian Follicles, (1923) 

      Van Iten, Brendan
      In the early 1920s, researchers Edgar Allen and Edward Adelbert Doisy conducted an experiment that demonstrated that ovarian follicles, which produce eggs in mammals, also contain and produce what they called the primary ...
    • Estrogen 

      Van Iten, Brendan
      The figure depicts three different molecular structures of estrogen found in mammals’ that differ by the arrangement of bonds and side groups. The molecular structures of the three estrogen molecules differ by the arrangement ...
    • Estrogen and the Menstrual Cycle in Humans 

      Van Iten, Brendan
      Estrogen is the primary sex hormone in women and it functions during the reproductive menstrual cycle. Women have three major types of estrogen: estrone, estradiol, and estriol, which bind to and activate receptors within ...