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Subject:
From:
"Catherine Watson Genna, IBCLC" <[log in to unmask]>
Reply To:
Lactation Information and Discussion <[log in to unmask]>
Date:
Wed, 26 Mar 2003 21:18:12 -0500
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Hi Karleen,
There is a sensitive interplay between estrogen, progesterone,
leutinizing hormone, follicle stimulating hormone that causes ovulation.
  High prolactin levels (or prolactin bursts from sucking in moms of
older babies) inhibits these other hormones at the level of the
hypothallamus and pituitary, which reduces stimulation of the ovary,
which blocks ovulation.  Without the same interplay of hormones, the
endometrium does not build up beyond a certain level, so periods are not
triggered.  Ovulation seems to be more sensitive than endometrial
changes to this suppression, therefore most women have one or more
periods before ovulation resumes.
There are many articles published on the specifics, I found many of them
doing a medline search on metoclopramide and prolactin 10 years or so ago...
--
Catherine Watson Genna, IBCLC  New York City  mailto:[log in to unmask]

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