DR MARK J. WINTER / SCIENCE PHOTO LIBRARY DR MARK J. WINTER / SCIENCE PHOTO LIBRARY
Oestradiol hormone. Molecular model of the structure of the female sex hormone oestradiol. Atoms are represented as rods and are colour- coded: carbon (blue), hydrogen (gold), and oxygen (red). Oestradiol is one of three naturally- occurring oestrogens, a class of hormones that are associated with the development of the female reproductive organs and secondary sex characteristics. Oestradiol is secreted in the ovaries and maintains female fertility up until the menopause. It can also be used in hormone replacement therapy to treat some clinical symptoms of the menopause.
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