Estrogens in insects

  title={Estrogens in insects},
  author={R. Mechoulam and R. Brueggemeier and D. Denlinger},
  • R. Mechoulam, R. Brueggemeier, D. Denlinger
  • Published 2005
  • Biology
  • Experientia
  • Insects representing 5 different orders contain androgen and estrogen-like substances as determined by radioimmunoassay. Estradiol and estriol have been identified by gas chromatography-mass spectrometry. The presence of these steroids in insects suggests that the vertebrate sex hormones have an ancient evolutionary history. 
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