Hepatic and Pancreatic Changes in Response to Prenatal Diet Restriction with Postnatal Exposure to a High Fat/high fructose Diet in the Adult Male and Female Rat Offspring
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ABSTRACT:
ORGANISM(S): Rattus norvegicus
PROVIDER: GSE255675 | GEO | 2025/02/12
REPOSITORIES: GEO
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Project description:Aside from the perinatal complications associated with low birth weight, individuals born with intra-uterine growth restriction suffer from chronic diseases late in life that ultimately lead to a shortened lifespan. These late life metabolic sequelae of low birth weight include obesity and metabolic syndrome, diabetes mellitus, cardiovascular disease, hypertension, stroke, dyslipidemia, and non-alcoholic fatty liver disease/steatohepatitis. Animal models employing perinatal calorie restriction recapitulate the observations made in humans. Interestingly, if continued calorie restriction is employed post-natally the late life sequelae of intra-uterine growth restriction are ameliorated. These observations linking both fetal and early post natal growth to later health is now termed the developmental origins of health and disease. To further our understanding of the mechanism of how early growth affects late life health we have employed Affymetrix microarray-based expression profiling to characterize hepatic gene expression in a rat model of maternal semi-nutrient restriction. In these experiments we have limited maternal calorie intake to 50% of normal so as to create 3 groups of animals: Control (Con) male offspring born to mothers who were fed normally throughout gestation and lactation; intra-uterine calorie restricted male offspring (IUCR) born to mothers who had 50% restriction of calories from e11 to e21; and combined intra-uterine and post-natal calorie restriction (IPCR) male offspring who were born to mothers who received calorie restriction during both fetal growth (e11 to e21) and post-natally (p1-p21). Livers were collected at p21(day 21 of life) for Con and IPCR groups (IUCR withheld owing to ‘catch up” growth), and at p450 (day 450 of life) for Con, IUCR, and IPCR. The profiling data reveals clear alteration of circadian cycling at P21, and subtle changes for circadian gene expression at p450. In addition, a clear transcriptional response is found during active calorie restriction at p21 but an absence of a transcriptional response late in life at p450. Transcritional studies have been performed using Affymetrix Rat Gene 1.0 arrays for the following treatment groups, with each group run in triplicate (each replicate from separate littermates): Day 21 Control, Day 21 IPCR, Day 450 Con, Day 450 IUCR, Day 450 IPCR
2014-06-01 | E-GEOD-41709 | biostudies-arrayexpress
Project description:Aside from the perinatal complications associated with low birth weight, individuals born with intra-uterine growth restriction suffer from chronic diseases late in life that ultimately lead to a shortened lifespan. These late life metabolic sequelae of low birth weight include obesity and metabolic syndrome, diabetes mellitus, cardiovascular disease, hypertension, stroke, dyslipidemia, and non-alcoholic fatty liver disease/steatohepatitis. Animal models employing perinatal calorie restriction recapitulate the observations made in humans. Interestingly, if continued calorie restriction is employed post-natally the late life sequelae of intra-uterine growth restriction are ameliorated. These observations linking both fetal and early post natal growth to later health is now termed the developmental origins of health and disease. To further our understanding of the mechanism of how early growth affects late life health we have employed Affymetrix microarray-based expression profiling to characterize hepatic gene expression in a rat model of maternal semi-nutrient restriction. In these experiments we have limited maternal calorie intake to 50% of normal so as to create 3 groups of animals: Control (Con) male offspring born to mothers who were fed normally throughout gestation and lactation; intra-uterine calorie restricted male offspring (IUCR) born to mothers who had 50% restriction of calories from e11 to e21; and combined intra-uterine and post-natal calorie restriction (IPCR) male offspring who were born to mothers who received calorie restriction during both fetal growth (e11 to e21) and post-natally (p1-p21). Livers were collected at p21(day 21 of life) for Con and IPCR groups (IUCR withheld owing to ‘catch up” growth), and at p450 (day 450 of life) for Con, IUCR, and IPCR. The profiling data reveals clear alteration of circadian cycling at P21, and subtle changes for circadian gene expression at p450. In addition, a clear transcriptional response is found during active calorie restriction at p21 but an absence of a transcriptional response late in life at p450.
2014-06-01 | GSE41709 | GEO
Project description:We generated transcriptome profiles of skeletal muscles from Largewhite pigs at 35, 55, and 90 days of gestation (dg), using high-throughput deep sequencing methods. A large number of differentially expressed (DE) genes and miRNAs were identified between stages and dietary treatments. Interestingly, reduced maternal calorie supply led to significant changes in mRNA and miRNA expression patterns. Down-regulation of critical genes and miRNAs associated with increased cell growth and myoblast differentiation at certain stages was found to be responsible for repressed myofiber formation in calorie-restricted pigs. Moreover, an integrative analysis of the miRNA and mRNA using sequence-based target prediction and negative correlation of miRNA-mRNA profiles identified a number of novel miRNA-mRNA interactions that are potentially involved in prenatal myogenesis regulation. Importantly, some critical miRNA-mRNA interactions were validated. And we first proposed a miRNA-TF-mRNA regulatory loop, which significantly increased the number of biologically relevant targets of miRNAs and introduced new mechanisms underlying the nutrient-modulated myogenesis.
2020-07-14 | GSE81751 | GEO
Project description:Paneth cells recide in the intestinal crypt bottom and are part of the innate immunity and of the intestinal stem cell niche. We used microarrays to detail the global changes in gene expression following reduced calorie intake. Mice were kept on ad libitum or calorie restricted (60% of calories of ad libitum) diets for 4-7 weeks and paneth cells were isolated using flowcytometry
2012-04-11 | E-GEOD-37209 | biostudies-arrayexpress
Project description:Hepatic and Pancreatic Changes in Response to Prenatal Diet Restriction with Postnatal Exposure to a High Fat/high fructose Diet in the Adult Male and Female Rat Offspring
| PRJNA1076146 | ENA
Project description:We performed a factorial experiment examining the effects of calorie restriction (CR) and exercise (EX) in mice. CR mice received 70% of calories but 100% of all other nutrients compared to AL mice. Food consumption, weight gain, and physical activity levels were recorded for 6 weeks. Diet and exercise treatments, both alone and in combination, had significant effects on body composition and levels of physical activity. Affymetrix oligo microarrays were used to determine global gene expression patterns in mammary gland total RNA. CR and EX had some overlapping but primarily unique effects on mammary gene expression, with CR affecting a much larger number of genes. The gene changes presented suggest that CR and EX influence mammary gland development and potentially carcinogenesis through distinct pathways. Keywords: 2 X 2 factorial mouse experiment; ad lib; calorie restriction; exercise; exercise + calorie restriction. Endpoints: body composition; bone density; gene expression in mammary gland
2008-12-24 | GSE14202 | GEO
Project description:Exposure to a prenatal high fat (HF) diet leads to an impaired metabolic phenotype in mouse offspring. The underlying mechanisms, however, are not yet fully understood. Therefore, this study investigated whether the impaired metabolic phenotype could have been mediated through altered hepatic DNA methylation and gene expression. In this study, both parent mice received a HF or low fat (LF) diet before and during pregnancy, and throughout lactation, after which offspring was weaned onto a HF diet. Previous work showed that at 12 weeks of age, the offspring displayed postprandial hypertriglyceridemia, which related to an impaired clearance of lipids from the blood into the liver after a HF meal. To study the mechanisms underlying the impaired metabolic phenotype after prenatal exposure to a HF diet, hepatic genome-wide gene expression was studied using whole transcript microarrays. In addition, hepatic DNA methylation of selected genes was assessed by bisulphite pyrosequencing.
2019-06-24 | GSE123009 | GEO
Project description:In murine NAFL/NASH models, high-fat high-calorie fructose (HFHC) diet fed for 16 weeks induces hepatic steatosis, inflammatory cells infilatration and early stage fibrosis. In addition, HFHC diet 16 weeks but not 8 weeks is accompanied with weight gain and insulin resistance. The aim of this study is to determine the gene expression changes in mouse liver by HFHC diet for 8weeks.
2021-12-08 | GSE154426 | GEO
Project description:Resveratrol (3,5,4'-trihydroxystilbene) extends the lifespan of diverse species including yeast, worms, and flies. In these organisms, lifespan extension is dependent on Sir2, a conserved deacetylase proposed to underlie the beneficial effects of caloric restriction (CR). Here we show that resveratrol shifts the physiology of middle-aged mice on a high-calorie diet towards that of mice on a standard diet and significantly increases their survival. Resveratrol produces changes associated with longer lifespan including increased insulin sensitivity, reduced IGF-1, increased AMPK and PGC-1α activity, increased mitochondrial number, and improved motor function. Parametric analysis of gene set enrichment (PAGE) revealed that resveratrol opposed the effects of the high-calorie diet in 144 out of 153 significantly altered pathways. These data show that improving general health in mammals using small molecules is an attainable goal and point to new approaches for treating obesity-related disorders and diseases of ageing. Experiment Overall Design: One-year-old male C57BL/6 mice were maintained on AIN-93G standard diet (SD), AIN-93G modified to provide 60% of calories from fat (HC), or HC diet with the addition of 0.04% resveratrol (HCR). Total RNA from the livers of 5 replicate animals from the first 2 groups and 4 from the 3rd group were labeled and hybridized to Agilent 44K whole genome microarrays.
2008-06-21 | E-GEOD-6089 | biostudies-arrayexpress
Project description:We analyzed the impact of calorie restriction and diet-induced obesity on expression of microRNAs in the mouse colon. For this analysis, data was LOESS normalized in R. Data was then imported into BRB Array for analysis. We identified microRNAs that were altered in response to calorie-restriction and diet-induced obesity
2014-04-30 | GSE56025 | GEO