An antiestrogen is a substance that blocks the production or utilization of estrogens, or inhibits their effects. (Estrogens are the family of hormones that promote the development and maintenance of female sex characteristics.) Antiestrogens like tamoxifen can promote an invasive phenotype in estrogen receptor (ER)-positive breast cancer cells wi...
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http://en.wikipedia.org/wiki/Antiestrogen
(from the article `drug`) Estrogen can be both a beneficial and a harmful hormone. It maintains skeletal strength by preventing the loss of bone and enhancing calcium ...
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http://www.britannica.com/eb/a-z/a/82
A substance that keeps cells from making or using estrogen (a hormone that plays a role in female sex characteristics, the menstrual cycle, and pregnancy). Antiestrogens may stop some cancer cells from growing and are used to prevent and treat breast cancer. They are also being studied in the treatment of other types of cancer. An antiestrogen is a...
Found on
http://www.cancer.gov/dictionary?expand=A
(an″te-es´trә-jen) a substance capable of inhibiting the biological effects of estrogens.
Found on
http://www.encyclo.co.uk/local/21001
Type: Term Pronunciation: an′tē-es′trō-jen Definitions: 1. Any substance capable of preventing full expression of the biologic effects of estrogenic hormones on responsive tissues, either by producing antagonistic effects on the target tissue, as androgens and progestogens do, or by competing with estrogens at estrogen recepto...
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http://www.medilexicon.com/medicaldictionary.php?t=4814
Antiestrogen: A substance that can prevent the full expression of estrogen. Antiestrogens act by exerting antagonistic effects on target tissues (androgens and progestogens act in this way) or by competing with estrogens for access to receptor sites located on the cell surface. For example, the drug tamoxifen (brand name: Nolvadex) is an antiestrog...
Found on
http://www.medterms.com/script/main/art.asp?articlekey=13162
No exact match found.
