The combined therapy myo-inositol plus d-chiro-inositol, rather than d-chiro-inositol, is able to improve IVF outcomes: results from a randomized controlled trial
- 772 Downloads
The present study aims to investigate the effects of the combined therapy myo-inositol (MI) plus d-chiro-inositol (DCI) or d-chiro-inositol treatment in oocyte quality.
Polycystic ovary syndrome (PCOS) women undergoing IVF-ET were treated with myo-inositol combined with d-chiro-inositol in the physiological ratio (1.1 g myo-inositol plus 27.6 mg of d-chiro-inositol; INOFOLIC® combi Lo.Li.pharma) or d-chiro-inositol alone (500 mg; Interquim, s.a., Barcelona, Spain) to evaluate the umber of morphological mature oocytes, total International Units (IU) of recombinant FSH administered and the number of grade 1 embryos.
The data clearly showed that only the combined therapy was able to improve oocyte and embryo quality, as well as pregnancy rates, in PCOS women undergoing IVF-ET.
The present paper further supports the hypothesis that MI plays a crucial role in the ovary in PCOS women. In particular, due to the physiological role played by MI and DCI, the combined therapy should represent a better choice.
KeywordsMyo-inositol d-chiro-inositol Oocyte quality IVF Embryo quality
Conflict of interest
- 3.UNCE (2005) http://www.unece.org/stats/trends2005/family.htm
- 8.Unfer V, Raffone E, Rizzo P, Buffo S (2011) Effect of a supplementation with myo-inositol plus melatonin on oocyte quality in women who failed to conceive in previous in vitro fertilization cycles for poor oocyte quality: a prospective, longitudinal, cohort study. Gynecol Endocrinol. doi: 10.3109/09513590.2011.564687
- 9.Rizzo P, Raffone E, Benedetto V (2010) Effect of the treatment with myo-inositol plus folic acid plus melatonin in comparison with a treatment with myo-inositol plus folic acid on oocyte quality and pregnancy outcome in IVF cycles. A prospective, clinical trial. Eur Rev Med Pharmacol Sci 14(6):555–561PubMedGoogle Scholar
- 11.Berker B, Kaya C, Aytac R, Satiroglu H (2009) Homocysteine concentrations in follicular fluid are associated with poor oocyte and embryo qualities in polycystic ovary syndrome patients undergoing assisted reproduction. Hum Reprod 24(9):2293–2302. doi: 10.1093/humrep/dep069 PubMedCrossRefGoogle Scholar
- 13.Huang LC, Fonteles MC, Houston DB, Zhang C, Larner J (1993) Chiroinositol deficiency and insulin resistance. III. Acute glycogenic and hypoglycemic effects of two inositol phosphoglycan insulin mediators in normal and streptozotocin-diabetic rats in vivo. Endocrinology 132(2):652–657PubMedCrossRefGoogle Scholar
- 17.Papaleo E, Unfer V, Baillargeon JP, De Santis L, Fusi F, Brigante C, Marelli G, Cino I, Redaelli A, Ferrari A (2007) Myo-inositol in patients with polycystic ovary syndrome: a novel method for ovulation induction. Gynecol Endocrinol 23(12):700–703. doi: 10.1080/09513590701672405 PubMedCrossRefGoogle Scholar
- 21.Minozzi M, Costantino D, Guaraldi C, Unfer V (2011) The effect of a combination therapy with myo-inositol and a combined oral contraceptive pill versus a combined oral contraceptive pill alone on metabolic, endocrine, and clinical parameters in polycystic ovary syndrome. Gynecol Endocrinol. doi: 10.3109/09513590.2011.564685
- 22.Cheang KI, Baillargeon JP, Essah PA, Ostlund RE Jr, Apridonize T, Islam L, Nestler JE (2008) Insulin-stimulated release of d-chiro-inositol-containing inositolphosphoglycan mediator correlates with insulin sensitivity in women with polycystic ovary syndrome. Metabolism 57(10):1390–1397. doi: 10.1016/j.metabol.2008.05.008 PubMedCrossRefGoogle Scholar
- 34.Lahiri Majumder A, Biswas BB (eds) (2006) Biology of Inositols and Phosphoinositides. Subcellular Biochemistry, vol 39. Springer, New yorkGoogle Scholar
- 38.Goud PT, Goud AP, Leybaert L, Van Oostveldt P, Mikoshiba K, Diamond MP, Dhont M (2002) Inositol 1,4,5-trisphosphate receptor function in human oocytes: calcium responses and oocyte activation-related phenomena induced by photolytic release of InsP(3) are blocked by a specific antibody to the type I receptor. Mol Hum Reprod 8(10):912–918PubMedCrossRefGoogle Scholar
- 42.Nechamen CA, Thomas RM, Cohen BD, Acevedo G, Poulikakos PI, Testa JR, Dias JA (2004) Human follicle-stimulating hormone (FSH) receptor interacts with the adaptor protein APPL1 in HEK 293 cells: potential involvement of the PI3K pathway in FSH signaling. Biol Reprod 71(2):629–636. doi: 10.1095/biolreprod.103.025833 PubMedCrossRefGoogle Scholar
- 43.Ma XW, Ding S, Ma XD, Gu N, Guo XH (2011) Genetic variability in adapter proteins with APPL1/2 is associated with the risk of coronary artery disease in type 2 diabetes mellitus in Chinese Han population. Chin Med J (Engl) 124(22):3618–3621Google Scholar
- 45.Tian L, Luo N, Zhu X, Chung BH, Garvey WT, Fu Y (2012) Adiponectin–AdipoR1/2–APPL1 signaling axis suppresses human foam cell formation: differential ability of AdipoR1 and AdipoR2 to regulate inflammatory cytokine responses. Atherosclerosis 221(1):66–75. doi: 10.1016/j.atherosclerosis.2011.12.014 PubMedCrossRefGoogle Scholar