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Shotgun metagenomics assessment in overweight subjects under a caloric restriction intervention.

ABSTRACT: Multi-omics analysis on overweight subjects under a caloric restriction intervention with fibre supplementation and placebo-controlled.

PROVIDER: PRJEB36898 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR4332430_1.fastq.gz	Fastqsanger.gz
	ERR4332430_2.fastq.gz	Fastqsanger.gz
	ERR4332440_1.fastq.gz	Fastqsanger.gz
	ERR4332440_2.fastq.gz	Fastqsanger.gz
	ERR4332450_1.fastq.gz	Fastqsanger.gz

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caloric restriction

Project description:caloric restriction

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Human plasma proteome of caloric restriction

Project description:We recruited ten normal-weight healthy men using inclusion criteria as previously described (Collet et al 2017). All males were healthy and not obese or overweight (average age: 23.8 years, average BMI (kg/m2): 23.3). Participants at baseline consumed a balanced diet (50% carbohydrate, 30% fat, and 20% protein). During caloric restriction, volunteers consumed 10% of normal energy requirement (226 kcal/d) for two days, again balanced (50% carbohydrate, 30% fat, and 20% protein), with the same macronutrient composition. After caloric restriction, volunteers were offered three substantial ad libitum buffet meals per day (20 MJ = 4,777 kcal) and additional snacks (16 MJ = 3,821 kcal) between meals for 2 days. They were invited to eat freely until comfortably full; food consumption was covertly measured. We collected fasting plasma samples at 0800 AM at baseline, after CR and refeeding (RF).

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Project description:In a randomized clinical trial of calorie restriction (CR), we demonstrated that important cardiovascular disease (CVD) biomarkers were favorably influenced by CR alone and in conjunction with physical exercise. The aim of this study was to examine the effects of CR with or without exercise on copper bound to ceruloplasmin (CuCp), a well-known biomarker for CVD, in overweight men and women enrolled in the CALERIE phase 1 study. Forty-six individuals were randomized to one of four groups for 6 months: control, healthy weight maintenance; CR, 25% CR from baseline energy requirements; CR+exercise, 12.5% CR and 12.5% through aerobic exercise; and low-calorie diet, low-calorie diet until 15% reduction in body weight followed by weight maintenance diet. CuCp was determined in fasting blood samples by a high-performance liquid chromatography-inductively coupled plasma mass spectrometry methodology and compared with changes in body composition and markers of CVD. After 6 months, CR combined with exercise induced a decrease in plasma concentration of CuCp. CuCp was inversely correlated with insulin sensitivity at baseline and after 6 months of intervention. A cluster analysis showed that the percent change of weight after 6 months of intervention was the most important variable that could discriminate the intervention groups. The percent change of CuCp was the only other variable selected by the analysis. Decreased CuCp in overweight subjects by CR combined with exercise suggests a positive effect of this intervention on metabolic health. Further studies to explain the relationship between weight loss and CuCp and its relevance for cardiovascular health are needed.

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Impact of aging/caloric restriction on circadian gene expression

Project description:Transcriptome analysis using the liver from young versus old mice, fed either normally or under caloric restriction reveals reorganization of distinct circadian signatures related to metabolic aging and nutrient-dependent counterbalance of aging by caloric restriction

2017-07-21 | GSE93903 | GEO

caloric restriction

Project description:Mice were killed between 24 to 26 months of age, tissues removed, rapidly frozen on dry ice, and stored in liquid nitrogen. Total liver RNA was isolated from frozen tissue as described (T. Tsuchiya, J.M. Dhahbi, X. Cui, P.L. Mote, A. Bartke, S.R. Spindler, Physiological Genomics, Submitted). mRNA levels were measured using the Affymetrix mouse U74Av2 array according to standard protocols. After hybridization, arrays were scanned using a Hewlett-Packard GeneArray Scanner. Image analysis was performed as described (Cao SX, Dhahbi JM, Mote PL, and Spindler SR. Genomic profiling of short- and long-term caloric restriction effects in the liver of aging mice. Proc Natl Acad Sci U S A 98: 10630-10635, 2001). A more detailed description of the methods can be found in (T. Tsuchiya, J.M. Dhahbi, X. Cui, P.L. Mote, A. Bartke, S.R. Spindler, Physiological Genomics, Submitted). This SuperSeries is composed of the SubSeries listed below.

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Project description:Obesity, a major risk factor for chronic diseases, is related to dsyfunctional adipose tissue signaling. First human trials suggest benefits of intermittent calorie restriction diet (ICR) in chronic disease prevention that may exceed those of continuous calorie restriction diet (CCR), even at equal net calorie intake. The effect of intermittent calorie restriction on adipose tissue signaling has not been investigated to date. Thus we initiated a randomized controlled trial to analyze the effect of ICR (eu-caloric diet on five days and two days per week with energy restriction of 75%), CCR (daily energy restriction of 20%) and a control group on subcutaneous adipose tissue (SAT) gene expression. 150 overweight or obese non-smoking adults (50 per group, 50% women) were randomly asiged to one of the study arms. SAT biopsies were taken before and after the 12 week intervention phase.

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Project description:Obesity and overweight are closely related to diet, and gut microbiota play an important role in body weight and human health. The aim of this study was to explore how Lactobacillus curvatus HY7601 and Lactobacillus plantarum KY1032 supplementation alleviate obesity by modulating the human gut microbiome. A randomized, double-blind, placebo-controlled study was conducted on 72 overweight individuals. Over a 12-week period, probiotic groups consumed 5×10^9 colony-forming units of HY7601 and KY1032), whereas the placebo group consumed the same product without probiotics. After treatment, the probiotic group displayed a reduction in body weight (p <0.001), visceral fat mass (p <0.025), and waist circumference (p <0.007), and an increase in adiponectin (p <0.046), compared with the placebo group. Additionally, HY7601 and KY1032 supplementation modulated bacterial gut microbiota characteristics and beta diversity by increasing Bifidobacteriaceae and Akkermansiaceae, and decreasing Prevotellaceae and Selenomonadaceae. In summary, HY7601 and KY1032 probiotics exert anti-obesity effects by regulating the gut microbiota; hence, they have therapeutic potential for preventing or alleviating obesity and overweight.

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Expression data of worms under different caloric restriction mimetic treatments

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