Dictionary » O » Oestrogen



(Science: endocrinology, hormone) A generic term for oestrus producing steroid compounds, the female sex hormones.

In humans, oestrogen is formed in the ovary, possibly the adrenal cortex, the testis and the foetoplacental unit, it has various functions in both sexes. It is responsible for the development of the female secondary sex characteristics and during the menstrual cycle it acts on the female genitalia to produce an environment suitable for the fertilization, implantation and nutrition of the early embryo.

Oestrogen is used in oral contraceptives and as a palliative in cancer of the breast after menopause and cancer of the prostate, other uses include the relief of the discomforts of menopause, inhibition of lactation and treatment of osteoporosis, threatened abortion and various functional ovarian disorders. A general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics.A female [[hormone produced in the [[ ovary beginning at [[puberty, which promotes the presence of secondary sexual characteristics and is also found in small amounts in males.

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reproductive sytem

... passage for both urine and semen. For the last bit I'd go with thinking about which sex hormones have a significant effect elsewhere - think about oestrogen and testosterone, which have wide-spread effects across the whole body. For example testosterone has been shown to prevent the onset of osteoporosis ...

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by Babybel56
Fri Feb 28, 2014 8:49 am
Forum: Molecular Biology
Topic: reproductive sytem
Replies: 1
Views: 5653

Menstural cycle

It seems (from the book and several websites) that initially, at low conc. oestrogen inhibits FSH and LH. As the follicle matures and oestrogen levels rise FSH and LH are stimulated. My questions are 1) If low levels of oestrogen inhibit FSH (and LH) how can ...

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by jsmith613
Tue Feb 07, 2012 8:52 pm
Forum: General Discussion
Topic: Menstural cycle
Replies: 0
Views: 877

Human Reproduction System

... move in to stimulate the uterine wall to become progressively thicker thus the need for the development of any more follicles is unnecessary. Both oestrogen and progesterone alone signals the hypothalamus and the pituitary gland to stop further secretion of FSH and LH hence the levels of both FSH ...

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by mande
Wed Aug 26, 2009 10:15 am
Forum: Human Biology
Topic: Human Reproduction System
Replies: 1
Views: 5672

Androgen and oestrogen deficiency or inhibition

Hello all. I would like to discuss this topic of oestrogen and androgen deficiency, and gather some information about it. Besides their effects on sexual characteristics, their development and sexual regulation, what are the other effects of androgens ...

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by Infotropism
Fri Aug 29, 2008 11:50 pm
Forum: Human Biology
Topic: Androgen and oestrogen deficiency or inhibition
Replies: 0
Views: 3396

Being in love...

... Could you imagine that, in all three stages (which are lust, attraction and attachment) the major role play the hormones like: testosterone, oestrogen, dopamine, oxytocin and the others. Does it make as more human or an animal? Could you imagine that “our” decisions about choosing a partner ...

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by Sysia_sf
Sun Nov 18, 2007 2:30 pm
Forum: Human Biology
Topic: Being in love...
Replies: 23
Views: 9908
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