E-MTAB-6584
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ABSTRACT:
PROVIDER: E-MTAB-6584 | ExpressionAtlas | 2019-09-09
REPOSITORIES: ExpressionAtlas
Similar Datasets
Project description:RNA libraries from whole D. melanogaster and dissected tissues (brain, fat body, gut, ovary, thorax). Flies were fed 1SY base food (10% yeast, 5% sucrose, 1.5% agar), EAA-enriched 1SY (equivalent to EAA content of 20% yeast as Emran et al, 2014: PMC4069266), or EAA-enriched 1SY + 200µm rapamycin
2018-03-30 | E-MTAB-6584 | biostudies-arrayexpress
Project description:Food is a fundamental requirement for organisms to develop, survive and reproduce. However, access to an optimum diet is not always guaranteed, resulting in a mismatch between the diet and the organism's needs. To comprehend the consequences of this mismatch, it becomes crucial to explore how different compositions of an organism's diet impact its overall performance. In this context, we tested the effect of isocaloric diets with different protein to carbohydrate ratios on eight key life history traits in a large (n = ~2,100) outbred Drosophila melanogaster population. We report accelerated pre-adult development and increased reproductive output, without affecting pre-adult viability and body size, in flies fed on low carbohydrate diet. We also observe that high carbohydrate content in diet shortens fly lifespan. In support, we found that increasing carbohydrate content in food led to faster aging by impairing locomotor activity and gut integrity. Additionally, we noted that the composition of the diet had an impact on gene expression patterns with high carbohydrate diets upregulating genes and high protein diets downregulating them. These results collectively provide a comprehensive understanding of how the balance of macronutrients in an organism's diet intricately shapes its traits.
2024-02-14 | GSE241397 | GEO
Project description:To determine whether diet-induced changes in gut microbiota modified intestinal immune cell gene expression, we analyzed the transcriptome of CD4 T lymphocytes isolated from the lamina propria of the small intestine from mice fed with different diets.
2015-11-18 | GSE52558 | GEO
Project description:We have previously demonstrated that the gut microbiota can play a role in the pathogenesis of conditions associated with exposure to environmental pollutants. It is well accepted that diets high in fermentable fibers such as inulin can beneficially modulate the gut microbiota and lessen the severity of pro-inflammatory diseases. Therefore, we aimed to test the hypothesis that hyperlipidemic mice fed a diet enriched with inulin would be protected from the pro-inflammatory toxic effects of PCB 126.
2020-02-27 | E-MTAB-8798 | biostudies-arrayexpress
Project description:Drosophila melanogaster larvae reared on isocaloric diets with different protein/sugar ratios, exhibit different developmental times and the eclosed adults show different metabolite pools of glycogen and triglycerides (Matzkin et al., 2011, PMID: 21525254). To investigate the effect of larval diet on adult neurological processes at the gene expression level we performed high throughout RNA sequencing of fly heads reared in two different protein/sugar ratio diets.
2017-06-03 | GSE82245 | GEO
Project description:We utilized three ecologically diverse Drosophila species to explore the influence of ecological adaptation on transcriptomic responses to isocaloric diets differing in their relative proportions of protein to sugar. Drosophila melanogaster, a cosmopolitan species that breeds in decaying fruit, exemplifies individuals long exposed to a Western diet higher in sugar, while the natural diet of the cactophilic D. mojavensis, is much lower in carbohydrates. Drosophila arizonae, the sister species of D. mojavensis, is largely cactophilic, but also utilizes rotting fruits that are higher in sugars than cacti. We exposed third instar larvae for 24 hours to diets either (1) high in protein relative to sugar, (2) diets with equal amounts of protein and sugar, and (3) diets low in protein but high in sugar. As we predicted, based upon earlier interspecific studies of development and metabolism, the most extreme differences in gene expression under different dietary conditions were found in D. mojavensis followed by D. arizonae. No differential expression among diets was observed for D. melanogaster, a species that survives well under all three conditions, with little impact on its metabolism. We suggest that these three species together provide a model to examine individual and population differences in vulnerability to lifestyle-associated health problems such as metabolic syndrome and diabetes.
2017-07-20 | GSE101664 | GEO
Project description:purpose?To elucidate the relationship of utilization different type of diets in fish method?enzyme activity determination and transcriptome sequencing were performed in common carp fed with single animal diet group (group AD), plant diet group (group PD) and mix diets group (group MD). Group MD as control group results? 916 and 1296 differentially expressed genes were identified between group AD vs MD and PD vs MD. Protein digestion and absorption, bile secretion, hematopoietic cell lineage and intestinal immune network for IgA production pathways were significantly differentially expressed between common carp fed with single type of diet and mix diets. Conclusion?common carp fed with mix diets had stronger immunity than common carp fed with single type of diets.
2019-01-19 | GSE125366 | GEO
Project description:How signals from fatty acid metabolism are translated into changes in food intake remains unclear. Previously we reported that mice with a genetic inactivation of Acads (short-chain acyl-CoA dehydrogenase), encoding the enzyme responsible for mitochondrial beta-oxidation of C4-C6 short-chain fatty acids (SCFAs), shift consumption away from fat and toward carbohydrate when offered a choice. This finding demonstrated that the loss of a specific enzyme in fatty acid oxidation alters the choice of diet intake. To our knowledge, there are no reports of studies on the effects of dietary fat on the brain transcriptome in genetic models of fatty acid oxidation deficiency. The current study aimed to identify molecular mediators underlying the effects of SCFA oxidation deficiency on food intake. The current study aimed to identify molecular mediators underlying the effects of SCFA oxidation deficiency on food intake. We performed a transcriptional screen for gene expression in brain tissue of Acads-/- and Acads+/+ mice fed either high-fat (HF) or low-fat (LF) diet for 2 d. Ingenuity Pathway Analysis revealed three top-scoring pathways significantly modified by genotype or diet: oxidative phosphorylation, mitochondrial dysfunction, and CREB signaling in neurons. A comparison of statistically significant responses in HF Acads-/- vs. HF Acads+/+ (3917) and Acads+/+ HF vs. LF Acads+/+ (3879) revealed 2551 genes or approximately 65% in common between the two experimental comparisons. All but one of these genes were expressed in opposite direction with similar magnitude, demonstrating that Acads-deficient mice fed HF diet display transcriptional responses that mimic those of wildtype Acads+/+ mice fed LF diet. Intriguingly, genes involved in energy sensing and metabolism followed this pattern. Quantitative RT-PCR in hypothalamus confirmed the dysregulation of several genes in these pathways. Western blotting showed that the combination of Acads deficiency and HF diet increased hypothalamic AMP-kinase, a key protein in an energy-sensing cascade that responds to depletion of ATP. Our results suggest that the decreased beta oxidation of short-chain fatty acids in Acads-deficient mice fed HF diet produces a state of energy deficiency in the brain and that AMP-kinase is the cellular energy-sensing mechanism linking fatty acid oxidation to feeding behavior in this model. Twelve-week old male BALB/cByJ (Acads-/-) and BALB/cByKZ (Acads+/+) mice were fed a high-fat (D12331; Research Diets) and low-fat (D12329) diet for two days. Total RNA from whole brain tissue was obtained from three mutant (Acads-/-) and three wild-type (Acads+/+) mice of each diet group. All mice had similar body weights before diets were initiated. Gene expression in brain was compared between strains and between diets. Twelve-week old male BALB/cByJ (Acads-/-) and BALB/cByKZ (Acads+/+) mice were fed a high-fat (D12331; Research Diets) and low-fat (D12329) diet for two days. Total RNA from liver was obtained from three mutant (Acads-/-) and three wild-type (Acads+/+) mice of each diet group. All mice had similar body weights before diets were initiated. Gene expression in liver was compared between strains and diets.
2012-12-20 | E-GEOD-35180 | biostudies-arrayexpress
Project description:Gene expression profiles of Terc+/+ and generation 2 (G2) Terc-/- male mice fed rapamycin or control diet during 2 months. Rapamycin diet contains encapsulated rapamycin at 42 ppm (mg of drug per kg of food); control diet contains coating material (Eudragit S100). Rapamycin was microencapsulated by Rapamycin Holdings Inc. (San Antonio, Texas) and was then incorporated into 5LG6 mouse chow (TestDiet, London, UK).
2020-01-02 | GSE127475 | GEO
Project description:The aim of this experiment was to explore transcriptomic changes in the distal gut of Altantic salmon fed five experimental and two control diets. The experimental diets were isonitrogenous, isolipidic and isocaloric. They had similar content of fish meal (~22%) and similar total plant protein content (~45%), but differed in the contents of soya protein concentrate (SPC) and bean protein concentrate (BPC). These two ingredients were used to replace each other (either partially or fully) at the levels of incorporation ranging from 0 to 45%, with ~11% increments. As a result, the experimental diets contained either 45% SPC and 0% BPC (S45), 34% SPC and 11% BPC (S34B11), 22% SPC and 22% BPC (S22B22), 11% SPC and 34% BPC (S11B34) or 0% SPC and 45% BPC (B45). The S45 and B45 diets were single plant protein diets, while the others (S34B11, S22B22 and S11B34) were mixed plant protein diets. The control diets were enriched with fish meal (FM diet) or soybean meal (SBM diet) to provide negative and positive controls for gut inflammation (enteritis), respectively. The study was conducted at EWOS Innovation Research Facility in Dirdal (Norway) Atlantic salmon (Salmo salar L.) of the SalmoBreed strain were supplied as fertilized eggs and hatched on site. Mixed-sex juvenile salmon in groups of ~150 fish were transferred to 26 indoor tanks (0.6 x 0.6 x 0.6 m), with ~60 L of freshwater flowing at a rate of 3.9 L/min and continuous aeration. The temperature of water was regulated at 13°C and all animals were exposed to a constant light regime (24 h light/day). Fish were fed a commercial EWOS Start 1 diet and acclimated to the experimental conditions for 2 weeks, after which (at body mass ~1.5 g) they were subjected to a 56-day feeding trial. Tanks were randomly assigned to the dietary treatments, with 4 replicate tanks per each experimental diet (S45, S34B11, S22B22, S11B34 and B45) and 3 replicate tanks per each control diet (FM and SBM diets). Fish were fed to satiation prior to the feeding trial and during the dietary manipulation using automatic band feeders (Holland Technology, Norway). During the feeding trial, all fish in each tank had their biomass recorded on days 0 (start of experiment), 14, 28, 42 and 56 (end of experiment) for evaluation of growth performance.
2016-02-01 | E-MTAB-3613 | biostudies-arrayexpress