Oestriol
Oestriol
Oestriol (pronounced: /ˈiːstrɪɒl/), also known as E3, is one of the three main estrogens produced by the human body. It is the least abundant of the estrogens and is primarily produced in pregnant women.
Etymology
The term "oestriol" is derived from the Greek word "oistros", meaning "gadfly" or "frenzy", and the suffix "-ol", a common ending for alcohols. The term was first used in the late 1930s to describe the third identified estrogenic substance.
Function
Oestriol is produced in significant amounts only during pregnancy. It is made from 16α-hydroxydehydroepiandrosterone (16α-OH-DHEA) in the placenta. Oestriol helps to improve the maternal metabolism, protein synthesis, and increase the uterine blood flow to help with the growth and development of the fetus.
Related Terms
- Estrogen: The primary female sex hormone that regulates the reproductive system.
- 16α-hydroxydehydroepiandrosterone: A steroid hormone that is converted into oestriol in the placenta.
- Placenta: An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing baby.
See Also
External links
- Medical encyclopedia article on Oestriol
- Wikipedia's article - Oestriol
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