Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1120206 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR29288200_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR29288201_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR29288202_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR29288203_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR29288204_subreads.fastq.gz | Fastqsanger.gz |
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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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Project description:Abdominal fat (AF) and intramuscular fat (IMF) are key carcass traits in broilers but managing both is challenging due to their contrasting effects. Arginine (Arg) supplementation has potential effect in lipid metabolism, however its tissue specific effect remains poorly understood. The objective of this study was to investigate the tissue specific effect of Arg supplementation on growth performance and fat metabolism in both liver and pectoral muscle in broilers. A total of 480 Arbor Acre chicks were randomly assigned to four groups: Control (0 g/kg), Arg (1.8 g/kg), 5X Arg (9 g/kg) and 10X Arg (18g/kg), with 12 replicates of 10 birds each. Overall, high Arg supplementation (5X, 10X) significantly impaired growth performance, reducing average daily gain and feed intake, accompanied by elevated serum AST and IFN-γ levels (p<0.05). Liver transcriptomics analysis revealed that 10X Arg significantly enriched PPAR signaling pathway, promoting fatty acid oxidation while suppressing lipogenic genes. Conversely, in pectoral muscle, high Arg (10X) promoted intramuscular fat deposition which was associated with downregulation of PPAR-α (p<0.05) and increased expression of key lipogenic genes involved in de novo lipogenesis (SREBP-1c, FAS, ACC and SCD). Moreover, Arg supplementation modulated drug metabolism genes in liver, including EPX and RRM2, suggesting potential impacts on detoxification pathways. These findings underscore the importance of precise Arg dosing to optimize broiler growth, immune function, and carcass quality by targeting its tissue specific metabolic effect.
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Project description:To investigate the impact of adding succinate to the diet on the production performance, meat quality, muscle fiber characteristics, and transcriptome of the longissimus dorsi muscle in Tan sheep, 36 Tan sheep were selected and fed with different levels of succinate (0%, 0.5%, 1.0%, 2.0%) for a 60-day trial period. Overall, compared to the control group, the addition of succinate to the diet improved the production performance, slaughter performance, and meat quality of Tan sheep. It significantly increased dry matter intake, carcass weight, eye muscle area, and the GR value while significantly reducing the shear force and cooking loss of the longissimus dorsi muscle (p<0.05). Furthermore, the addition of succinate to the diet altered the muscle fiber characteristics of the longissimus dorsi muscle in Tan sheep, significantly increasing the fiber diameter and cross-sectional area of type I and type IIa muscle fibers (p<0.05). The addition of 1.0% succinate to the diet altered the transcriptome of the longissimus dorsi muscle in Tan sheep, with 741 differentially expressed genes identified compared to the control group. These differentially expressed genes were involved in various pathways related to lipid metabolism, energy metabolism, and muscle development, such as insulin secretion, insulin resistance, cAMP signaling pathway, PI3K-Akt signaling pathway, and FoxO signaling, among others. In summary, succinate plays a crucial role in regulating energy metabolism, protein deposition, and glucose and lipid metabolism homeostasis in Tan sheep through insulin signaling pathways and the interaction of muscle cell factors. By modulating the expression of relevant genes, succinate improves the muscle fiber characteristics of Tan sheep, thereby enhancing production performance and meat quality.
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2015-11-22 | GSE63531 | GEO
Project description:Background In the past, numerous studies revealed that supplementation with carnitine has multiple effects on performance characteristics and gene expression in livestock and model animals. The molecular mechanisms underlying these observations are still largely unknown. Increasing evidence suggests that microRNAs (miRNAs), a class of small non-coding RNA molecules, play an important role in post-transcriptional regulation of gene expression and thereby influencing several physiological and pathological processes. Based on these findings, the aim of the present study was to investigate the influence of carnitine supplementation on the miRNA expression profile in skeletal muscle of obese Zucker rats using miRNA microarray analysis. Results miRNA expression profiling in skeletal muscle revealed a subset of 152 miRNAs out of the total number of miRNAs analysed (259) were identified to be differentially regulated (adjusted P-value ˂ 0.05) by carnitine supplementation. Compared to the obese control group, 111 miRNAs were up-regulated and 41 down-regulated by carnitine supplementation (adjusted P-value ˂ 0.05). 14 of these miRNAs showed a log2 ratio ≥ 0.5 and 7 miRNAs showed a log2 ratio ≤ -0.5 (adjusted P-value ˂ 0.05). Conclusion The present study shows for the first time that supplementation of carnitine affects a large set of miRNAs in skeletal muscle of obese Zucker rats suggesting a novel mechanism through which carnitine exerts its multiple effects on gene expression, which were observed during the past. For microarray analyses, six RNA samples each, for the obese control group (n = 6) and the obese carnitine group (n = 6), were prepared from skeletal muscle tissue.
2014-06-17 | E-GEOD-58537 | biostudies-arrayexpress
Project description:Human umbilical cord matrix-mesenchymal stromal cells (hUCM-MSC) have demonstrated beneficial effects in experimental acute myocardial infarction (AMI). In this study, we investigated the outcome of the delivery of hUCM-MSC after reperfusion in a translational model of AMI in swine. We have found that intracoronary injection of the cell product was associated with improved systolic function and that improvement in mechanical performance. This did not depend on the reduction of morphological infarct size alone, despite treated animals showing signs of less adverse remodeling.
2023-06-01 | E-MTAB-13022 | biostudies-arrayexpress
Project description:Background In the past, numerous studies revealed that supplementation with carnitine has multiple effects on performance characteristics and gene expression in livestock and model animals. The molecular mechanisms underlying these observations are still largely unknown. Increasing evidence suggests that microRNAs (miRNAs), a class of small non-coding RNA molecules, play an important role in post-transcriptional regulation of gene expression and thereby influencing several physiological and pathological processes. Based on these findings, the aim of the present study was to investigate the influence of carnitine supplementation on the miRNA expression profile in skeletal muscle of obese Zucker rats using miRNA microarray analysis. Results miRNA expression profiling in skeletal muscle revealed a subset of 152 miRNAs out of the total number of miRNAs analysed (259) were identified to be differentially regulated (adjusted P-value ˂ 0.05) by carnitine supplementation. Compared to the obese control group, 111 miRNAs were up-regulated and 41 down-regulated by carnitine supplementation (adjusted P-value ˂ 0.05). 14 of these miRNAs showed a log2 ratio ≥ 0.5 and 7 miRNAs showed a log2 ratio ≤ -0.5 (adjusted P-value ˂ 0.05). Conclusion The present study shows for the first time that supplementation of carnitine affects a large set of miRNAs in skeletal muscle of obese Zucker rats suggesting a novel mechanism through which carnitine exerts its multiple effects on gene expression, which were observed during the past.
2014-06-17 | GSE58537 | GEO