Plasma metabolomic response to high-carbohydrate meals of differing glycaemic load in overweight women.
Eur J Nutr
; 62(5): 2257-2267, 2023 Aug.
Article
em En
| MEDLINE
| ID: mdl-37085625
ABSTRACT
BACKGROUND:
Metabolomic dysregulation following a meal in overweight individuals with the Metabolic Syndrome (MetS) involves multiple pathways of nutrient storage and oxidation.OBJECTIVE:
The aim of the current study was to perform an acute cross-over intervention to examine the interactive actions of meal glycaemic load (GL) on the dynamic responses of the plasma metabolome in overweight females.METHODS:
Postmenopausal women [63 ± 1.23y; Healthy (n = 20) and MetS (n = 20)] ingested two differing high-carbohydrate test meals (73 g carbohydrate; 51% energy) composed of either low glycemic index (LGI) or high (HGI) foods in a randomised sequence. Plasma metabolome was analysed using liquid chromatography-mass spectrometry (LC-MS).RESULTS:
In the overweight women with MetS, there were suppressed postprandial responses for several amino acids (AAs), including phenylalanine, leucine, valine, and tryptophan, p < 0.05), irrespective of the meal type. Meal GL exerted a limited impact on the overall metabolomic response, although the postprandial levels of alanine were higher with the low GL meal and uric acid was greater following the high GL meal (p < 0.05).CONCLUSIONS:
MetS participants exhibited reduced differences in the concentrations of a small set of AAs and a limited group of metabolites implicated in energy metabolism following the meals. However, the manipulation of meal GL had minimal impact on the postprandial metabolome. This study suggests that the GL of a meal is not a major determinant of postprandial response, with a greater impact exerted by the metabolic health of the individual. Trial registration Australia New Zealand Clinical Trials Registry ACTRN12615001108505 (21/10/2015).Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Sobrepeso
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Carga Glicêmica
Tipo de estudo:
Clinical_trials
Limite:
Female
/
Humans
Idioma:
En
Revista:
Eur J Nutr
Assunto da revista:
CIENCIAS DA NUTRICAO
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Nova Zelândia