Suckling lamb perirenal fat transcriptome
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ABSTRACT:
PROVIDER: PRJNA423080 | ENA |
REPOSITORIES: ENA
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Project description:The aim of this study was to perform a comparative analysis of the perirenal fat transcriptomes of suckling lambs from two breeds with different growth and carcass characteristics. The perirenal fat tissue from 14 suckling lambs (Assaf= 8, Churra= 6) was used for the RNA-Seq analysis. The functional enrichment analysis of the 670 highly expressed genes (>150 fragments per kilobase of exon per million fragments mapped) in the perirenal fat transcriptome of both breeds revealed that the majority of these genes were involved in energy processes. The differential expression analysis performed identified 373 differentially expressed genes (DEGs) between the two compared breeds. In Assaf lambs, DEGs were enriched in Gene Ontology (GO) biological processes related to fatty-acid oxidation, while in Churra lambs, the majority of the significantly enriched GO terms were related to cholesterol synthesis, which suggests that upregulated DEGs in Assaf lambs are implicated in fat burning, while the Churra upregulated DEGs are linked to fat accumulation.
2018-07-18 | GSE108314 | GEO
Project description:Samples of perirenal fat tissue from 8 Assaf breed suckling lambs. These animals were selected from a larger group of 17 Assaf suckling lambs for which carcass traits were measured. The 8 selected lambs were those showing the highest and the lowest values, from the larger group, for the percentage of perirenal and cavitary fat relative to the half carcass weight. Hence, considering the values for this trait, we defined the High-PF group (n = 4; average: 3.23 ± 0,.47) and the Low-PF group (n = 4; 1.65 ± 0,.16), respectively.
2023-04-25 | E-MTAB-11839 | biostudies-arrayexpress
Project description:In sheep, differences were observed regarding fat accumulation and fatty acid composition between males and females, which may impact the quality and organoleptic characteristics of the meat. The analysis of omics technologies is a relevant approach for investigating biological and genetic mechanisms associated with complex traits. Here, the perirenal tissue of six male and six female Assaf suckling lambs was evaluated using RNA sequencing.
2022-10-12 | E-MTAB-12130 | biostudies-arrayexpress
Project description:MicroRNAs are a class of molecular regulators found to participate in numerous biological processes, including adipogenesis. However, whether dietary changes impact on microRNA (miRNA) in ruminants has not been reported. Therefore, this study aimed to evaluate the dietary effect on miRNA expression in subcutaneous (backfat) and visceral fat depots (perirenal fat) from beef steers fed with different diets containing high or low fat levels. Fat tissues were collected from 16 Hereford x Aberdeen Angus cross bred steers (15.5 month old) fed high fat diet (5.85% fat, n=8) or control diet (1.95% fat, n=8). Total RNA from each animal was subjected to miRNA microarray analysis using a customized Agilent miRNA microarray containing 672 bovine miRNA probes. Expression of miRNAs was not equally detected under two diets; 169 miRNAs were commonly expressed while 75 were diet specific. The number of miRNAs detected per animal under high fat diet was higher than those fed control diet (p= 0.037 in subcutaneous fat and p= 0.002 in visceral fat).. Further qRT-PCR analysis confirmed that the expression of some miRNAs was highly influenced by diet (miR-19a, -92a, -92b, -101, -103, -106, -142-5p, and 296) or fat depot (miR-196a and -2454). Our results revealed that the miRNA expression can be influenced by types of fat tissues or diet, suggesting that miRNAs may regulate bovine adipogenesis when diet alters. In this study, a total of 32 adipose tissue samples were analyzed by microRNA microarrays, being 16 subcutaneus (backfat) and 16 visceral (perirenal fat) fat depots were collected from 16 animals (Control diet = 8) (High fat diet = 8).
2012-06-30 | E-GEOD-35012 | biostudies-arrayexpress
Project description:Transcriptome deep sequencing is a powerful tool for exploring the genetic architecture of complex traits. Gene expression patterns may explain a high degree of the observed phenotypic differences in histochemical and metabolic parameters related to meat quality among different muscles. Utilizing RNA Sequencing, this study characterized the whole transcriptome of nine lamb muscles: Semimembranosus (SM), Semitendinosus (ST), Gluteobiceps (GB), Gluteus medius (GM), Rectus femoris (RF), Supraspinatus (SS), Longissimus lumborum (LL), Adductor (AD) and Psoas major (PS).
2018-03-30 | GSE112500 | GEO
Project description:Investigate the genome-wide DNA methylation changes in the mouse hypothalamus during the suckling period.
2012-05-01 | GSE32475 | GEO
Project description:Transcriptional profiling of 25d old piglets comparing control untreated suckling jejunum with weaned piglets' jejunum. The goal was to gain new insight into the interaction between weaning and intestinal function.A keen interest is paid in deciphering expression changes of apoptosis or cell cycle control genes. The statistical analysis of gene ontology revealed that most of these altered genes are metabolic-related enzymes and regulators which may involved in the biological regulation, developmental process, and cellular process. Weaning also causes alterations in various immune response pathways. Results likely indicate that weaning induced cell cycle arrest, enhanced apoptosis, and inhibited cell proliferation. Two-condition experiment, suckling control piglets' jejunum vs. weaned piglets' jejunum. Biological replicates: 4 control replicates, 4 weaned replicates.
2014-05-01 | E-GEOD-48050 | biostudies-arrayexpress
Project description:Emerging knowledge shows the importance of early life events in programming the intestinal mucosal immune system and development of the intestinal barrier function. These processes depend heavily on close interactions between gut microbiota and host cells in the intestinal mucosa. In turn, development of the intestinal microbiota is largely dependent on available nutrients and substrates required for the specific microbial community structures to expand. It is currently not known what the specificities are of intestinal microbial community structures in relation to the programming of the intestinal mucosal immune system and development of the intestinal barrier function. The objective of the present study was to investigate the effect of a nutritional intervention on intestinal development of suckling piglets by daily oral administration of fructooligosaccharides (FOS) over a period of 12 days. At the microbiota community level a clear “bifidogenic” effect of the FOS administration was observed in colon digesta at day 14. The former, however, did not translate into significant changes of local gene expression in the colonic mucosa. In the jejunum, significant changes were observed for microbiota composition at day 14, and microbiota diversity at day 25. In addition, significant differentially expressed gene sets in mucosal tissues of jejunum were identified at both days 14 and 25 of age. At the age of 14 days, lower activity of cell cycle-related processes and a higher activity of extracellular matrix processes were observed in jejunal scrapings of piglets supplemented with FOS compared to control piglets. At day 25, lower activity of immune-related processes in jejunal tissue were seen in piglets supplemented with FOS. Histological parameters, villi height and crypt depth, were significantly different at day 25 between the experimental and control group, where piglets supplemented with FOS had higher villi and deeper crypts. We conclude that oral FOS administration during the suckling period of piglets has significant bifidogenic effects on the microbiota in the colon and on gene expression in jejunal mucosa scrapings. We hypothesize that FOS supplementation of suckling piglets results in a higher butyrate production in the colon due to the increase in bifidobacteria and lactobacilli in the hindgut. We further speculate that a higher butyrate production in colonic digesta relates to changes in gene expression in the jejunum by thus far unknown mechanisms.
2018-01-29 | GSE101147 | GEO