Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/54452
Title: Impact of maternal feed restriction at different stages of gestation on the proteomic profile of the newborn skeletal muscle
Keywords: Capra hircus
Energy metabolism
Feed restriction
Maternal nutrition
Proteome
Skeletal muscle
Caprinos - Alimentação
Metabolismo energético
Restrição alimentar
Nutrição materna
Proteoma
Músculo esquelético
Issue Date: Apr-2022
Publisher: Multidisciplinary Digital Publishing Institute (MDPI)
Citation: COSTA, T. C. et al. Impact of maternal feed restriction at different stages of gestation on the proteomic profile of the newborn skeletal muscle. Animals, [S.I.], v. 12, n. 8, 2022. DOI: 10.3390/ani12081011.
Abstract: We aimed to investigate the effects of the maternal plane of nutrition during gestation on the proteome profile of the skeletal muscle of the newborn. Pregnant goats were assigned to the following experimental treatments: restriction maintenance (RM) where pregnant dams were fed at 50% of their maintenance requirements from 8–84 days of gestation, and then feed of 100% of the maintenance requirements was supplied from 85—parturition (n = 6); maintenance restriction (MR) where pregnant dams were fed at 100% of their maintenance requirements from 8–84 days of gestation, and then experienced feed restriction of 50% of the maintenance requirements from 85—parturition (n = 8). At birth, newborns were euthanized and samples of the Longissimus dorsi muscle were collected and used to perform HPLC-MS/MS analysis. The network analyses were performed to identify the biological processes and KEGG pathways of the proteins identified as differentially abundant protein and were deemed significant when the adjusted p-value (FDR) < 0.05. Our results suggest that treatment RM affects the energy metabolism of newborns’ skeletal muscle by changing the energy-investment phase of glycolysis, in addition to utilizing glycogen as a carbon source. Moreover, the RM plane of nutrition may contribute to fatty acid oxidation and increases in the cytosolic α-KG and mitochondrial NADH levels in the skeletal muscle of the newborn. On the other hand, treatment MR likely affects the energy-generation phase of glycolysis, contributing to the accumulation of mitochondrial α-KG and the biosynthesis of glutamine.
URI: http://repositorio.ufla.br/jspui/handle/1/54452
Appears in Collections:DZO - Artigos publicados em periódicos



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