Differences in the metabolomic signatures of porcine follicular fluid collected from environments associated with good and poor oocyte quality

The microenvironment of the developing follicle is critical to the acquisition of oocyte developmental competence, which is influenced by several factors including follicle size and season. The aim of this study was to characterise the metabolomic signatures of porcine follicular fluid (FF) collecte...

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Veröffentlicht in:Reproduction (Cambridge, England) England), 2013-09, Vol.146 (3), p.221-231
Hauptverfasser: Bertoldo, Michael J, Nadal-Desbarats, Lydie, Gérard, Nadine, Dubois, Alexis, Holyoake, Patricia K, Grupen, Christopher G
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container_end_page 231
container_issue 3
container_start_page 221
container_title Reproduction (Cambridge, England)
container_volume 146
creator Bertoldo, Michael J
Nadal-Desbarats, Lydie
Gérard, Nadine
Dubois, Alexis
Holyoake, Patricia K
Grupen, Christopher G
description The microenvironment of the developing follicle is critical to the acquisition of oocyte developmental competence, which is influenced by several factors including follicle size and season. The aim of this study was to characterise the metabolomic signatures of porcine follicular fluid (FF) collected from good and poor follicular environments, using high-resolution proton nuclear magnetic resonance (1H-NMR) spectroscopy. Sow ovaries were collected at slaughter, 4 days after weaning, in summer and winter. The contents of small (3–4 mm) and large (5–8 mm) diameter follicles were aspirated and pooled separately for each ovary pair. Groups classified as summer-small (n=8), summer-large (n=15), winter-small (n=9) and winter-large (n=15) were analysed by 1H-NMR spectroscopy. The concentrations of 11 metabolites differed due to follicle size alone (P
doi_str_mv 10.1530/REP-13-0142
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The aim of this study was to characterise the metabolomic signatures of porcine follicular fluid (FF) collected from good and poor follicular environments, using high-resolution proton nuclear magnetic resonance (1H-NMR) spectroscopy. Sow ovaries were collected at slaughter, 4 days after weaning, in summer and winter. The contents of small (3–4 mm) and large (5–8 mm) diameter follicles were aspirated and pooled separately for each ovary pair. Groups classified as summer-small (n=8), summer-large (n=15), winter-small (n=9) and winter-large (n=15) were analysed by 1H-NMR spectroscopy. The concentrations of 11 metabolites differed due to follicle size alone (P&lt;0.05), including glucose, lactate, hypoxanthine and five amino acids. The concentrations of all these metabolites, except for glucose, were lower in large FF compared with small FF. Significant interaction effects of follicle size and season were found for the concentrations of glutamate, glycine, N-acetyl groups and uridine. Succinate was the only metabolite that differed in concentration due to season alone (P&lt;0.05). The FF levels of progesterone, androstenedione and oestradiol were correlated with the concentrations of most of the metabolites examined. The results indicate that there is a distinct shift in follicular glucose metabolism as follicles increase in diameter and suggest that follicular cells may be more vulnerable to oxidative stress during the summer months. 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Succinate was the only metabolite that differed in concentration due to season alone (P&lt;0.05). The FF levels of progesterone, androstenedione and oestradiol were correlated with the concentrations of most of the metabolites examined. The results indicate that there is a distinct shift in follicular glucose metabolism as follicles increase in diameter and suggest that follicular cells may be more vulnerable to oxidative stress during the summer months. 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language eng
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subjects Animals
Female
Follicular Fluid - metabolism
Life Sciences
Magnetic Resonance Spectroscopy
Metabolome
Multivariate Analysis
Oocytes - physiology
Other
Seasons
Steroids - metabolism
Swine
title Differences in the metabolomic signatures of porcine follicular fluid collected from environments associated with good and poor oocyte quality
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