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ABSTRACT: A microbiota-directed therapeutic food for severely malnourished children evaluated following acute nutritional resuscitation

PROVIDER: PRJNA1123170 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29378500_1.fastq.gz	Fastqsanger.gz
	SRR29378500_2.fastq.gz	Fastqsanger.gz
	SRR29378600_1.fastq.gz	Fastqsanger.gz
	SRR29378600_2.fastq.gz	Fastqsanger.gz
	SRR29378700_1.fastq.gz	Fastqsanger.gz

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Project description:Glucagon-like peptide 1 receptor agonists (GLP-1RAs) have been shown to impact glucose homeostasis and, more recently, the somatotropic axis. While the effects of GLP-1RAs have been extensively studied in the context of diet-induced obesity, their impact on physiology in other nutritional contexts have been less explored. We investigated the potential beneficial effects of the GLP-1RA semaglutide during juvenile protein malnutrition, a dietary challenge known to cause stunted growth and to disrupt metabolic homeostasis. We used a murine model to assess the effects of twice-weekly subcutaneous injections of semaglutide during juvenile protein malnutrition. Glucose metabolism was evaluated through in vivo oral glucose tolerance test, ex vivo glucose-stimulated insulin secretion in isolated pancreatic islets and histology of the pancreas. We combined linear growth monitoring, analysis of the growth hormone/insulin-like growth factor 1 signaling pathway and liver bulk RNA sequencing to characterize the effects of semaglutide on the somatotropic axis during juvenile protein malnutrition. Semaglutide improved glucose tolerance in control and malnourished mice, but differentially impacted pancreatic islet physiology depending on the dietary protein intake. While semaglutide did not alter growth in control conditions, it further inhibited growth of malnourished mice associated with reduction in fat but not lean mass. Surprisingly, semaglutide had no discernible effect on the functionality of the somatotropic axis in malnourished mice. Liver transcriptomics revealed that semaglutide could interfere with the growth of malnourished juvenile mice by altering circadian rhythm and thermogenesis. Our data reveal that semaglutide interacts differentially with the physiology of juvenile mice depending on their dietary protein intake. We found that semaglutide influences glucose metabolism and linear growth in a diet-dependent manner, underscoring the importance of examining the effects of GLP-1RAs across various nutritional contexts and developmental stages.

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