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J Obstet Gynaecol ; 41(4): 588-593, 2021 May.
Article in English | MEDLINE | ID: mdl-32749170

ABSTRACT

Homocysteine is one of the components of follicular fluid (FF), so that any disruptions in its concentration may affect oocyte development. The aim of this study was to determine the relationship between FF homocysteine concentration and embryo quality, oocyte maturity, and pregnancy rate. Oocytes and embryos of 44 infertile women were categorised into different groups based on their maturity and quality, respectively. FF homocysteine levels, oocyte maturity, embryo quality, and pregnancy status were measured. A significant association was observed between the levels of FF homocysteine ​and oocyte maturation rate (p = .00). The concentration of FF homocysteine was higher than 9.8 µm/L in women with oocyte maturation < 80%. Most of the good quality embryos belonged to homocysteine levels < 9.8 µm/L. Decreased FF homocysteine concentrations can significantly improve the oocyte maturation rate and embryo quality. Aging may be an indirect factor contributing to decreased embryo quality and oocyte maturation through increasing FF homocysteine levels.IMPACT STATEMENTWhat is already known on this subject? It has been demonstrated that homocysteine is one of the components of follicular fluid (FF), but no information is available about the link between its concentration in FF and oocyte development.What do the results of this study add? The data indicated that decreased FF homocysteine concentrations at a younger age may remarkably improve the oocyte maturity and embryo quality of infertile patients undergoing assisted reproductive treatment (ART).What are the implications of these findings for clinical practice and/or further research? Based on the findings and considering the ease of measuring serum homocysteine and its direct correlation with FF homocysteine, homocysteine level measurement is recommended in patients who are candidates for infertility treatment in order to estimate oocyte maturation rate, embryo quality, and ART outcomes. Future studies are suggested to investigate patients with PCOS, endometriosis, and male factor infertility.


Subject(s)
Embryo, Mammalian/physiology , Follicular Fluid/chemistry , Homocysteine/analysis , Infertility, Female/metabolism , Oocytes/physiology , Adult , Cell Enlargement/drug effects , Female , Fertilization in Vitro , Humans , Infertility, Female/therapy , Pregnancy , Pregnancy Rate , Prospective Studies
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