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孕期不同阶段母体饲料限制对新生儿骨骼肌蛋白质组学特征的影响。

Impact of Maternal Feed Restriction at Different Stages of Gestation on the Proteomic Profile of the Newborn Skeletal Muscle.

作者信息

Costa Thaís Correia, Dutra Luana Lucas, Mendes Tiago Antônio de Oliveira, Dos Santos Marta Maria, Veroneze Renata, Gionbelli Mateus Pies, Duarte Marcio de Souza

机构信息

Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-000, Brazil.

Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, Viçosa 36570-000, Brazil.

出版信息

Animals (Basel). 2022 Apr 13;12(8):1011. 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.

摘要

我们旨在研究妊娠期母体营养水平对新生羊骨骼肌蛋白质组图谱的影响。将怀孕山羊分配到以下实验处理组:限饲维持组(RM),即怀孕母羊在妊娠8至84天期间按维持需要量的50%饲喂,然后在85天至分娩期间按维持需要量的100%供给饲料(n = 6);维持限饲组(MR),即怀孕母羊在妊娠8至84天期间按维持需要量的100%饲喂,然后在85天至分娩期间经历维持需要量50%的饲料限制(n = 8)。出生时,对新生羊实施安乐死,采集背最长肌样本并用于进行高效液相色谱-串联质谱(HPLC-MS/MS)分析。进行网络分析以确定被鉴定为差异丰富蛋白的蛋白质的生物学过程和KEGG通路,当校正p值(FDR)<0.05时被认为具有显著性。我们的结果表明,除了利用糖原作为碳源外,RM处理通过改变糖酵解的能量投入阶段来影响新生羊骨骼肌的能量代谢。此外,RM营养水平可能有助于脂肪酸氧化,并增加新生羊骨骼肌中胞质α-酮戊二酸(α-KG)和线粒体烟酰胺腺嘌呤二核苷酸(NADH)水平。另一方面,MR处理可能影响糖酵解的能量生成阶段,导致线粒体α-KG的积累和谷氨酰胺的生物合成。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9955/9031497/8c4a1cae74f4/animals-12-01011-g001.jpg

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