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Myo-Inositol May Help PCOS Women To Conceive


Myo-inositol is a unique vitamin B-like substance which is becoming highly regarded as a novel way to help women with PCOS to conceive. Myo-inositol may also help to minimize the risks of severe ovarian hyper-stimulation syndrome (OHSS) in IVF/ART in PCOS women.

It is estimated that thirty to forty percent of PCOS women have irregularities in their glucose / insulin control mechanisms which is where myo-inositol works it's magic. The body's insulin signaling pathways are highly dependent upon myo- inositol derived mediators called phosphoglycan and D-chiro-inositol for proper function.

When myo-inositol supplements are given to PCOS women, malfunctioning insulin pathways seem to function more normally and this in turn can reduce the signs and symptoms of PCOS such as insulin resistance, high androgen levels (testosterone and DHEA) and anovulation without side-effects or toxicity.

Studies on myo-inositol have demonstrated (6) that higher levels of myo-inositol within ovarian follicles may be a marker for good follicular development and good oocyte or egg quality.

Here is a brief overview of the studies to date that may help you to understand Myo-inositol's unique value to PCOS women. Increasingly, reproductive endocrinologists are recognizing the benefits of myo-inositol and slowly this natural treatment seems to be becoming more mainstream. Being able to show your physician relevant clinical studies makes it more likely that they will be happy for you to use myo-inositol alongside your fertility treatments if they are unfamiliar with myo-inositol.

In one of the earliest studies in 2007 (1) researchers followed 25 women with oligo-amenorrhea (irregular menses) or amenorrhea (no menses) due to PCOS as they took myo-inositol and folic acid as 'Inofolic' 2g twice a day for 6 months.

At the end of the study, eighty eight percent of the women who were treated with myo-inositol had at least one menstrual cycle, and of these women, seventy two percent continued ovulating normally. Forty percent of the women became pregnant and the study concluded that:

"Myo-inositol is a simple and safe treatment that is capable of restoring spontaneous ovarian activity and consequently fertility in most patients with PCOS. This therapy did not cause multiple pregnancy."

Another Italian study (2) in 2010 compared the effects of Myo-inositol treatment or metformin in PCOS women and then compared these two treatments with the addition of gonadotrophin injections (r-FSH) for ovulation induction. One hundred and twenty patients took either 1500 mg/day of metformin or a combination of folic acid 400 mcg and Myo-inositol 4 g per day. In the women that did not conceive a low dose of FSH (37.5 units/day) was added for up to three cycles.

Of the women taking just metformin, fifty percent resumed ovulation and eighteen percent became pregnant. Injections of FSH were administered to the 'metformin-only' women who did not conceive and a further twenty six percent conceived producing a total pregnancy rate of 36.6%.

Of the women taking myo-inositol and folic acid, sixty-five percent resumed ovulation and thirty percent conceived. FSH was administered to the myo-inositol women who did not conceive and a further twenty nine percent conceived producing an even higher total pregnancy rate of 48.4%.

This study - which showed that myo-iositol may be able to out-perform metformin - concluded that:

"Both metformin and MYO, can be considered as first line treatment for restoring normal menstrual cycles in most patients with PCOS, even if MYO treatment seems to be more effective than metformin."

In yet another Italian study (3) in 2009, Myo-inositol (MYO) was studied as a novel solution to symptoms of PCOS such as hirsutism (excess body hair), acne and hair loss.

Fifty PCOS women were give Myo-inositol for six months and after three months levels of LH, testosterone and free testosterone and insulin were significantly reduced. At the end of the six months hirsutism and acne had decreased also and the study concluded that:

"MYO administration is a simple and safe treatment that ameliorates the metabolic profile of patients with PCOS, reducing hirsutism and acne."

In a 2008 study myo-inositol was studied (5) specifically with PCOS women who were overweight. Twenty overweight women with PCOS were treated with myo-inositol and after 12 weeks labs demonstrated that levels of LH, prolactin, testosterone, insulin, LH/FSH, insulin sensitivity and glucose-to-insulin ratios could change significantly. Menstrual cycles were restored in all the patients with irregular or no menstruation and the study concluded that:

"Myo-inositol administration improves reproductive axis functioning in PCOS patients reducing the hyperinsulinemic state that affects LH secretion."

Lastly, a randomized double-blind trial (7) - the gold standard of research - gave 92 women either 400 mcg of folic acid as a placebo or 4 g myo-inositol plus 400 mcg folic acid as the treatment arm. This study discovered that with myo-inositol treatment ovulation significantly increased as did the frequency of normal progesterone values in the luteal phase and estradiol levels.

This study noted less metabolic benefits to those women who were overweight but also that the myo-inositol group lost a significant amount of weight and had lowered leptin levels. The study concluded that:

"These data support a beneficial effect of myo-inositol in women with oligomenorrhea and polycystic ovaries in improving ovarian function."

Need I say more? Myo-inositol has a well-deserved place in any treatment protocol for PCOS especially if conception is desired but your physician should always be consulted before you switch up your nutritional supplements.

This article is for informational and educational purposes only and is not a substitute for medical diagnosis or medical/dietetic advice for which you should consult a physician or dietitian.

Would you like articles like this delivered to your email weekly? sigh up for the BellaOnline infertility newsletter, it's free and you can unsubscribe anytime that you like. The link is below.


References:

(1) Gynecol Endocrinol 2007 Dec;23(12):700-3. Epub 2007 Oct 10. Myo-inositol in patients with polycystic ovary syndrome: a novel method for ovulation induction. Papaleo E, et al.
(2) Gynecol Endocrinol 2010 Apr;26(4):275-80. Insulin sensitiser agents alone and in co-treatment with r-FSH for ovulation induction in PCOS women. Raffone E, et al.
(3) Gynecol Endocrinol 2009 Aug;25(8):508-13. Efficacy of myo-inositol in the treatment of cutaneous disorders in young women with polycystic ovary syndrome. Zacche MM, et al.
(4) 2008 Mar;24(3):139-44. Myo-inositol administration positively affects hyperinsulinemia and hormonal parameters in overweight patients with polycystic ovary syndrome. Genazzani AD, et al.
(5) Eur J Obstet Gynecol Reprod Biol 2009 Dec;147(2):120-3. Epub 2009 Oct 2.
Contribution of myo-inositol to reproduction. Papaleo E et al. Eur Rev Med
(6)Eur Rev Med Pharmacol Sci. 2013 Nov;17(22):3095-102.
Inositol: effects on oocyte quality in patients undergoing ICSI. An open study.
Brusco GF1, Mariani M.
(7) Pharmacol Sci 2007 Sep-Oct;11(5):347-54. Randomized, double blind placebo-controlled trial: effects of myo-inositol on ovarian function and metabolic factors in women with PCOS. Gerli S, et al. European Review for Medical and Pharmacological Sciences 2007; 11: 347-354
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Content copyright © 2014 by Hannah Calef. All rights reserved.
This content was written by Hannah Calef. If you wish to use this content in any manner, you need written permission. Contact Hannah Calef for details.

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