To compare,
the FSH test is essentially a marker of communication between the anterior
pituitary in the brain down to the ovaries.
When the FSH begins to rise on day 2 or 3 of the cycle, it stimulates
the growth and development of the follicles such that a dominant follicle is
formed and with the trigger of luteinizing
hormone an egg can be released for
pregnancy. As a woman becomes older, her
FSH levels rise as there are fewer and fewer follicles left in the ovary yet
the pituitary continues to produce the hormone . The higher the FSH levels (typically above
10), the less fertile a woman has become.
Working with
FSH is the anti-mullerian hormone that is produced directly by the ovaries in
order to help with follicular development as well by controlling excessive
follicle stimulation by FSH. Those with
lower AMH are thought to have lower levels of follicles therefore the potential
for egg development is a lot less.
Unlike the FSH marker which should be drawn on day 2 or 3 of the
menstrual cycle, the AMH can be checked any day as it does not typically vary
throughout the month.
Research in
the February 2013 Journal of Clinical Endocrinology and Metabolism suggests
that AMH is a good predictive marker for those women looking to undergo IVF as
it can predict the oocyte yield and oocyte quality which is important for a
successful transfer. The higher the AMH
level (typically between 3-7 ng/mL depending on the lab and fertility center),
translates to a better outcome for IVF which means a successful pregnancy. Levels above 7ng/mL are indicative of
polycystic ovarian syndrome. Levels less
than 2 ng/mL are indicative of lower fertility chances.
If you are
currently trying to become pregnant, are having difficulty becoming pregnant or
are thinking about it in the future, remember that you are more than a
number. There are several factors that
contribute to the health of your body, ovaries and eggs however these tests may
be powerful indicators of what’s to come.
Talk with your health care provider about getting a work-up and remember
to be as healthy as you can be when it comes to making a baby.
References:
1)
Hand, L.
Antimullerian Hormone Levels Predict IVF Success. Web.
20 February, 2013.
2)
Jabbour, S., and Griffing, G. Follicle Stimulating Hormone Abnormalities
Workup. Web. 20 February, 2013.