Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Genome-wide effects of maternal undernutrition

ABSTRACT: A comparison of the liver transcriptomes of 1 day old rats that are born to mothers fed with three different diets during gestation. The first animal group was fed with a normal diet (control); second group received much less protein than normal and slightly more carbs (low protein); third group diet was same as low protein but with an extra dosage of folic acid (lowp.+f). All diets were matched for energy. Total RNA was extracted from rat livers of 4 offsprings per animal group (4 biological replicates x group)

ORGANISM(S): Rattus norvegicus

SUBMITTER: Gioia Altobelli

PROVIDER: E-GEOD-50799 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Genome-wide methylation and gene expression changes in newborn rats following maternal protein restriction and reversal by folic acid.

Altobelli Gioia G Bogdarina Irina G IG Stupka Elia E Clark Adrian J L AJ Langley-Evans Simon S

PloS one 20131231 12

A large body of evidence from human and animal studies demonstrates that the maternal diet during pregnancy can programme physiological and metabolic functions in the developing fetus, effectively determining susceptibility to later disease. The mechanistic basis of such programming is unclear but may involve resetting of epigenetic marks and fetal gene expression. The aim of this study was to evaluate genome-wide DNA methylation and gene expression in the livers of newborn rats exposed to mater ...[more]

PMID: 24391732

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Project description:Background: Poultry eggs are a low cost, high protein nutrient package that can be consumed as part of a quality diet. However, consumption of poultry egg products has been historically contentious, which highlights the importance of investigating impacts of long-term egg consumption on metabolic health. Objective: Our study utilized the zebrafish Danio rerio, a newly-defined model of human metabolic health, to understand the metabolic consequence of consuming egg products in lieu of other well-described protein sources. Methods: Reference diets were formulated to contain multi-source protein with casein and fish protein hydrolysate (CON; control protein sources), the protein sources of which have been vetted in numerous reference diets. These proteins were then replaced in part with either whole egg (WE; protein and lipid source), egg white (EW; protein source), wheat gluten (WG; cereal protein source), or a high lipid content diet containing a multi-source protein with casein and fish protein hydrolysate (HFCON; isonitrogenous and isolipidic with the WE diet) in a 34-week trial. Daily feeding was initiated at early juvenile life stage and terminated at late reproductive adult stage. Results: The amino acid composition of control vs egg product diets did not vary substantially, although methionine and lysine were apparently limiting in fish fed WG. At termination, fish fed EW as the protein source had similar weight gain and body composition to those fed the CON diet. Blood glucose, both fasting and postprandial, did not differ among any dietary treatment. Assessment of the liver transcriptome using RNAseq revealed no differential gene expression between zebrafish fed CON or WE diets. Zebrafish fed WG had lower weight gain in males. Conclusions: Long-term consumption of egg products promoted metabolic health equal to that of historically-relevant proteins. These data support the value of egg products for maintaining long-term metabolic health in animal diets.

Dataset Information

Genome-wide effects of maternal undernutrition

Publications

Genome-wide methylation and gene expression changes in newborn rats following maternal protein restriction and reversal by folic acid.

Similar Datasets

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