Amino acid and fatty acid composition of follicular fluid as predictors of in-vitro embryo development

REPRODUCTIVE BIOMEDICINE ONLINE

卷:16

Article

Sinclair, K. D.¹  Lunn, L. A.^1,2  Kwong, W. Y.¹  Wonnacott, K.¹  Linforth, R. S. T.¹  Craigon, J.¹ 

[1] Univ Nottingham, Sch Biosci, Loughborough LE12 5RD, Leics, England

[2] Univ Nottingham, Sch Human Dev, Queens Med Ctr, Nottingham NG7 2UH, England

关键词: amino acids;    blastocysts;    fatty acids;    follicular fluid;    IVF;    oocyte;   

DOI  :  10.1016/S1472-6483(10)60153-8

来源: Elsevier

【 摘 要 】

The value of using the amino acid and fatty acid composition of follicular fluid as predictors of embryo development was assessed in a bovine model of in-vitro maturation (IVM), IVF and blastocyst culture (IVC). A total of 445 cumulus-oocyte complexes (COC) aspirated from visually healthy follicles underwent IVM and IVF singly (n = 138) or in groups (11 = 307). Of these COC, 349 cleaved (78%) following IVF and 112 went on to form blastocysts (32% of cleaved) following IVC. Culture method (singly or in groups) had no effect on development. In contrast to fatty acids, which had no predictive value, the amino acid composition of follicular fluid was associated with morphological assessments of COC quality and with post-fertilization development to the blastocyst stage. Principal component analysis identified two amino acids (i.e. alanine and glycine) that had the highest value for predicting early post-fertilization development. The predictive value of these two amino acids, in terms of the percentage of oocytes that cleaved following IVF, was greatest for COC with the poorest morphological grades but, with respect to blastocyst yields, was independent of morphological grade, and so may serve as a useful additional non-invasive measure of COC quality.

【 授权许可】

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