Diet-induced plasticity of life-history traits and gene expression in outbred Drosophila melanogaster population
Ontology highlight
ABSTRACT:
ORGANISM(S): Drosophila melanogaster
PROVIDER: GSE241397 | GEO | 2024/02/14
REPOSITORIES: GEO
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Project description:Numerous studies show dietary carbohydrates (C) affect the sensation of sweetness. However, protein (P) is one of the most critical macronutrients in the diet as well. It is still unclear how carbohydrates and proteins interact to influence sweet taste sensitivity. Here, we use the nutritional geometry framework (NGF) to tackle this problem in Drosophila melanogaster. Our results showed that the combination of high protein and low carbohydrates caused higher taste responses to sucrose stimuli in both sexes. Additionally, transcriptome analysis revealed that the gene expression of glycine, serine, and threonine pathway in the high-protein, low-carbohydrate diet was significantly upregulated, compared to a diet with low protein, and high carbohydrate. We confirmed that serine and threonine supplementation in the high-carbohydrate, low-protein diet enhanced the sucrose sensitivity of flies. Our results demonstrate that sucrose taste sensitivity is affected by the dietary balance of protein and carbohydrates possibly mediated by the change in serine, and threonine. The high protein, low carbohydrate diets enhanced sucrose taste sensitivity.
2023-02-16 | GSE217385 | GEO
Project description:The specific genes influencing the quantitative variation in macronutrient preference and food intake are virtually unknown. We refined a previously identified mouse chromosome 17 (MMU17) region harboring quantitative trait loci (QTL) with large effects on preferential macronutrient intake-carbohydrate (Mnic1), total kilcalories (Kcal2), and total food volume (Tfv1) using interval-specific congenic strains. These loci were isolated in the [C57BL/6J.CAST/EiJ-17.1-(D17Mit19-D17Mit50); B6.CAST-17.1] strain, developed by introgressing a ~40.1 Mb CAST MMU17 region into recipient B6 genome. In a diet selection paradigm (carbohydrate/protein vs. fat/protein), these B6.CAST-17.1 sub-congenic mice eat 30% more calories from the carbohydrate-rich diet, ~10% more total calories, and ~9% more total food volume per body weight. In the current study, this carbohydrate-preferring B6.CAST-17.1 subcongenic strain was crossed with the fat-preferring inbred B6 strain to generate a subcongenic-derived F2 mapping population; genotypes were determined using a high-density, custom SNP panel. The main outcome of this study is that genetic linkage analysis greatly reduced the 95% confidence interval (CI) for Mnic1 (encompassing Kcal2 and Tfv1) from 40.1 to 29.5 Mb and more precisely established the QTL boundaries. Specifically, the genetic architecture for Mnic1 (preferential carbohydrate intake) does not follow the same pattern as that for co-localized Kcal2/Tfv1 (total kcal and food volume, respectively), suggesting the presence of separate quantitative trait genes for these food intake traits. No genetic linkage for self-selected fat intake was detected, underscoring the carbohydrate-specific effects of this MMU17 locus. The Mnic1/Kcal2/Tfv1 QTL was further de-limited to a ~19.1 Mb interval, based on the absence of macronutrient diet selection phenotypes in subcongenic HQ17IIa mice that possess CAST MMU17 donor segment on a C57BL/6Jhg/hg background. A second key finding is the separation of two energy balance QTLs: Mnic1/Kcal2/Tfv1 for food intake and a newly discovered locus regulating short term body weight gain. The genes Decr2, Ppard and Agapt1 in the critical QTL interval were identified and prioritized using a combination of genome sequence analysis, and tag-based transcriptome sequencing to measure hypothalamic gene expression in non-recombinant F2 controls, possessing cast/cast and b6/b6 genotypes across the sub-congenic segment. Global gene expression profiles in the hypothalamus were compared between non-recombinant subcongenic-derived F2 mice, possessing a genotype of cast/cast (n=12) or b6/b6 (n=12) across the Chr 17 subcongenic segment and b6/b6 across the rest of the genome. RNA was isolated from individual mice of each genotype that were selected for study. Specifically, twelve mice of each genotype that displayed the most divergent phenotypic values for self-selected carbohydrate and total kcal intake were chosen for gene expression analysis, i.e., cast/cast mice with the highest and b6/b6 mice with the lowest kcal intake from carbohydrate, or the 25% tails of the distribution. Tissues were harvested ~48 h after re-initiation of the carbohydrate/protein vs. fat/protein diets, following an extended wash-out period on chow diet after completion of the 10 d macronutrient selection test.
2015-05-15 | E-GEOD-60756 | biostudies-arrayexpress
Project description:Dietary changes associated with industrialization substantially increase the prevalence of chronic diseases, such as obesity, type II diabetes, and cardiovascular disease, which are major contributors to the public health burden. The high prevalence of these chronic diseases is often attributed to an “evolutionary mismatch,” between human physiology and modern nutritional environments. In support of this idea, Western diets enriched with foods that were scarce throughout human evolutionary history (e.g., simple sugars and saturated fats) promote inflammation and disease relative to diets more akin to hunter-gatherer diets, such as a Mediterranean diet; however, the mechanisms linking dietary mismatch to inflammation and chronic disease are poorly understood. We used a macaque model and whole diet manipulations to evaluate one possible mechanism – inflammatory polarization of monocytes – that potentially leads to this evolutionary mismatch. After consuming a Western- or Mediterranean-like diet for 15 months, monocytes from Western diet consumers exhibited a more proinflammatory phenotype, with 40% of their genes differentially expressed (FDR<0.05). Compared to the Mediterranean diet, the Western diet shifted the co-expression of 445 gene pairs, including small RNAs and transcription factors associated with metabolism and adiposity in humans, and dramatically altered animal behavior. For example, Western-fed individuals were more anxious and less socially integrated compared to the Mediterranean-fed subjects. These behavioral changes mediated some of the effects of diet on gene expression, suggesting an interaction between diet, central nervous system activity, and monocyte gene expression. The results of this study provide new insights into evolutionary mismatch at the molecular level and uncover new pathways through which Western diets generate inflammation and disease.
2020-01-28 | GSE144314 | GEO
Project description:Rearing conditions may elicit noticeable plastic responses in life-history traits of living organisms. For instance, diet composition has proven to influence prominent traits such as body size, fecundity, and lifespan. In contrast, the social environment may influence the survival rate at immature stages, food consumption, and fat storage. Nevertheless, the physiological mechanisms underlying such responses are largely unknown. In this study, we investigated changes in the proteome of the house cricket Acheta domesticus subjected to diets of different nutritional composition (i.e., protein to carbohydrates ratio) and two distinct social environments (i.e., solitary or in groups). We measured the relative abundances of 685 proteins identified in whole-body cricket samples using high-performance liquid chromatography coupled to tandem mass spectrometry. Differential expression of proteins induced by diet composition and social environment in female and male A. domesticus was assessed in a data-independent proteomics approach. Additionally, we performed a functional analysis of the differentially expressed proteins using comprehensive databases (KEGG and GO). We found that sex alone explained a significant portion (40.87%) of the relative protein abundance variation. Males had a higher representation of proteins involved in metabolic pathways and locomotion. In contrast, females exhibited a higher abundance of proteins related to genetic processes regulation and nutrient catabolism. Moreover, diet composition and social environment induced sex-specific changes in a smaller set of proteins with particular roles. Females had their protein profile affected by diet composition and social environment. The involved proteins were mainly related to several protein synthesis stages, carbohydrate metabolism, and muscle development. In contrast, males were only affected by diet composition, overexpressing proteins related to hormone production, carbohydrate metabolism, and apparently depositing excess protein in the cuticle when fed with a protein-rich diet. It was evident that diet had a more substantial influence on the proteome of the cricket A. domesticus than the social environment, showing that diet composition may exert profound physiological changes in insects in a sex-specific manner.
2021-05-31 | PXD025535 | Pride
Project description:Food composition of diets strongly determines the risk of experiencing inflammation related metabolic or cardiovascular disease. We aimed to determine the extent of inheritance of inflammatory responses to isocaloric changes in food composition as a prerequisite of personalized dietary recommendations in human twins. 34 monozygotic and 12 dizygotic healthy pairs of twins recruited from a twin register (HealthTwiSt, Berlin, Germany) or by public advertisements completed the study. All participants received a low fat diet (55% carbohydrate, 30% fat, 15% protein) for 6 weeks (CID1=LF thereafter) followed by 6 weeks of a high fat diet (40% carbohydrate, 45% fat, 15% protein) (CID2=HF1 after 1 week, and CID3=HF6 after 6 weeks of high fat diet). Both diets were isocloric. A physical examination, anthropometry (DEXA scan), and medical history were obtained and 12h fasted blood was collected at 8:00 a.m. on study days. Resting energy expenditure (indirect calorimetry) and physical activity level (PAL) was assessed by questionnaire and dietary food records for five days were completed before and during the study. Fasting blood levels of cytokines, chemokines and adipokines were determined by ELISA. The participants were instructed, trained and accompanied by an experienced nutritionist. Individual energy requirements were calculated based on participants REE and PAL. Participants received a list of 94 foods items and individual daily meal plans on how to exchange and combine these foods and energy intake was adjusted according to body weight if needed. Seven days before the LF, HF1 and HF6 examination days 70 percent of the food was provided to ensure standardized dietary patterns for all participants. A biopsy of periumbilical abdominal subcutaneous adipose tissue was performed on each CID for gene expression analysis.
2014-10-10 | E-GEOD-62199 | biostudies-arrayexpress
Project description:De novo lipogenesis (DNL) has been implicated in the development and progression of hepatic liver steatosis. Hepatic DNL is strongly influenced by dietary macronutrient composition with diets high in carbohydrate increasing DNL and diets high in fat decreasing DNL. The enzymes in the core DNL pathway have been well characterised however less is known about proteins that play accessory or regulatory roles in DNL. In the current study, we associate measured rates of hepatic DNL and liver fat content with abundance of liver proteins from liquid chromatography mass spectrometry in mice to identify known and uncharacterised proteins that may have a role in DNL. Male C57BL/6J mice were fed either a standard chow diet a semi-purified high starch diet or a high fat diet. Both semi-purified diets resulted in increased body weight, fat mass and liver triglyceride content compared to chow-fed mice while hepatic DNL was increased in the high starch fed mice and decreased in the high fat fed mice. Proteomic analysis was carried out on the livers of these mice and proteins were identified that associated with either the rate of DNL or triglyceride content in the liver. There was no overlap between DNL and triglyceride associated proteins. We identify novel proteins associated with DNL that are involved in taurine metabolism, which suggests a link between these pathways. Further analysis identified proteins that are differentially regulated when comparing a non-purified chow diet to either of the semi-purified diets to provide a set of proteins that are regulated by the degree of dietary complexity alone. Finally, we compared the liver proteome between 4 week-fed and 30-week diet-fed mice and found remarkable similarity suggesting that the majority of diet-regulated proteins change early in response to differing dietary components.
2024-10-30 | PXD054323 | Pride
Project description:Milk and soy are reported to contain bioactive molecules with antibacterial and immunomodulatory actions, which may be beneficial to people with IBD. The aim of this study was to determine whether diets containing ruminant milk or soy solids reduce intestinal inflammation in Il10-/- mice. Male Il10-/- mice and C57BL/6J mice were fed diets containing 40% (w/w) sheep, goat, or cow whole milk powder, 40% (w/w) soy solids (NOW® Foods Soy Milk Powder, Instant), or one of two control diets (casein-free modified-AIN76A or standard AIN76A) from 4 to 11 weeks of age. Diets were based on AIN76A, which was included as an inter-experimental control for inflammation. For all diets except AIN76A, total protein, fat, carbohydrate and energy were kept as similar as possible. Weight and food intake were measured throughout the experiment (three times weekly), and intestinal tissue was taken for histopathology evaluation of inflammation and analysis of gene expression. Analysis of mouse weight and feed intake both showed a significant strain-diet interaction: Il10-/- mice fed the cow and goat milk diets ate less and gained less weight than all the other diet groups. This diet effect was not evident for the C57BL/6J mice. Il10-/- mice on the cow and goat milk diets had reduced colon histological injury scores relative to those on the other diets. Il10-/- mice on the cow and goat milk diets also had reduced expression of many immune/inflammatory-related genes and pathways.
2019-12-01 | GSE39830 | GEO
Project description:Wistar Kyoto, inbred male rats (M & B, Ry, Denmark) were randomized and fed a semisynthetic pellet diet deficient in folate (TD350, Harland, Madison, Wisconsin, USA) or an identical diet with a normal amount of folate (TD351, Harland). Special analyses were performed to establish the content of Methionine, Vitamin B12, Folate and Vitamin B6 in the two diets. The folate content was <0.06 mg/kg and 1.63 mg/Kg, respectively. Detailed specification of the diets has been published previously. Animals were housed in stainless steel cages with a bed of sawdust, two to a cage, and were allowed free access to food and drinking water. The room temperature was 23a C and the humidity was 45-55 %. Light cycles consisted of 12 h light/12 h darkness. The animals were weighed at randomization and subsequently every seven days. The animal experiments were carried out in accordance with the guidelines of the International Scientific Committee for Thrombosis and Hemostasis, and the Danish Ethical Committee for Animal Experimentation had approved the study protocol. This study consisted of twelve rats fed the folate deficient diet and twelve rats fed the normal diet for 28 days.
2005-08-01 | E-MEXP-154 | biostudies-arrayexpress
Project description:Intake of high-protein (HP) diets has increased over the last years, mainly due to their popularity for body weight control. Liver is the main organ handling ingested macronutrients and it is associated with the beginning of different pathologies. We aimed to deepen our knowledge on molecular pathways affected by long-term intake of an HP diet. We performed a transcriptome analysis on liver of rats chronically fed with a casein-rich HP diet and analyzed molecular parameters related to liver injury. Chronic increase in the dietary protein/carbohydrate ratio up-regulated processes related with amino acid uptake/metabolism and lipid synthesis, promoting a molecular environment indicative of hepatic triacylglycerol (TG) deposition. Moreover, changes in expression of genes involved in acidâbase maintenance and oxidative stress indicate alterations in the pH balance due to the high acid load of the diet, which has been linked to liver/health damage. Up-regulation of immune-related genes was also observed. In concordance with changes at gene expression level, we observed increased liver TG content and increased serum markers of hepatic injury/inflammation (aspartate transaminase, C-reactive protein and TNF-alpha). Moreover, the HP diet strongly increased hepatic mRNA and protein levels of HSP90, a marker of liver injury. Thus, we show for the first time that long-term consumption of an HP diet, resulting in a high acid load, results in a hepatic transcriptome signature reflecting increased TG deposition and increased signs of health risk (increased inflammation, alterations in the acidâbase equilibrium and oxidative stress). Persistence of this altered metabolic status could have unhealthy consequences. Wistar wildtype male rats, aged 8 weeks, received a low fat diet, high protein or high fat diet for 4 months. After sacrification, livers were dissected, and immediately snap frozen in liquid nitrogen. Total RNA was isolated, quantified and qualified, and subsequently used for global gene expression profiling using Agilent 4x44K microarrays.
2017-05-02 | E-GEOD-57858 | biostudies-arrayexpress
Project description:Livers from 15 month old mice mainatined on one of 25 different diets varying in protein, carbohydrate, fat (P,C,F) and energy content were analysed. Energy content was categorised as low (8kJ/g), medium (13kJ/g) or high (17kJ/g) Mice were placed on diet from 3 weeks of age and a subset culled for various analyses. The rest of the cohort was allowed to live out their natural life to assess lifespan. We used microarrays to details the global programme of gene expression as a result of changes in dietary macronutrient composition and intake.
2016-08-25 | GSE85998 | GEO