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Differential Expression of miRNAs in Bovine Skeletal Muscle that Display Varying Degrees of the Dark-cutting Phenotype.

ABSTRACT: Identify specific genetic regulatory and signaling mechanisms that result in occurrence of “dark cutting meat” from beef carcasses in order to develop novel strategies for reducing incidence

ORGANISM(S): Bos indicus x Bos taurus

PROVIDER: GSE193003 | GEO | 2022/01/07

REPOSITORIES: GEO

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Differential Expression of miRNAs in Bovine Skeletal Muscle that Display Varying Degrees of the Dark-cutting Phenotype.

Project description:Differential Expression of miRNAs in Bovine Skeletal Muscle that Display Varying Degrees of the Dark-cutting Phenotype.

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Effects of neck-arm restraint suspension of beef carcasses on meat quality and proteome of different muscles during post-mortem aging

Project description:Beef quality is the first deciding factor for consumers to consider before purchasing. The aim of this study was to evaluate the effects of suspension and aging time on beef quality. We compared the differences in pH, drip loss, cooking loss, color, shear force, myofibril fragmentation index (MFI) and electron microscope of three muscle tissues between Achilles tendon (AT) and neck-arm restraint (NR) suspensions during seven aging periods (day 0, 1, 2, 3, 7, 14 and 21) after slaughter using the carcasses of six Xinjiang brown cattle. We found that NR suspension could significantly increase water loss rate and MFI, as well as reduce shear force compared to AT suspension. The muscle fiber structure with NR suspension was more severely damaged. The proteomics of longissimus dorsi were checked for the post-mortem day 1, 7 and 14. We detected 50, 26, and 29 differential expressed proteins (DEPs) between NR and AT suspension at post-mortem day 1, 7 and 14, respectively. These proteins were involved in metabolic and muscle structure associated pathways, and contributed to a comprehensive understanding of suspension-dependent meat quality regulation by proteins in beef cattle. To conclude, NR suspension can accelerate the aging time of beef carcasses, which will reduce the cost of carcass suspension and bring more benefits in beef industry.

2021-11-19 | PXD029806 | Pride

Bovine Longissimus thoracis muscle HDMSE with differents ultimate pH

Project description:The purpose of this research was to investigate the causes and consequences of pHu variations in beef cattle. For that, were evaluated 176 Nellore beef cattle, and classified into two different pHu groups: High (≥6.0, N=17) and Normal (<5.8, N=159). Plasma concentrations of cortisol and adrenocorticotropic hormone, lactate and glycogen muscular content, meat color, shear force and Longissimus thoracis muscle proteomic profile were evaluated and compared between pHu groups. Muscle glycogen content, meat color and shear force statistically differed between pHu groups. Label-free quantitative proteomic analysis revealed ten differentially abundant proteins between pHu groups, involved in metabolic processes and muscle contraction. Thirty-six and 31 proteins were exclusively present in Normal and High pHu group, respectively, which were related to TCA cycle, cortisol production, calcium regulation, and antioxidant function. The MYH7, UGP2, and VDAC3 were identified as potential indicators of pHu variations. CALM and NNT appeared to be interesting proteins to better understand the metabolic pathways behind pHu.

2018-07-11 | PXD009320 | Pride

Tandem mass tag labeling to characterize muscle-specific proteome change in beef during early postmortem

Project description:Bovine longissimus lumborum (LL) and psoas major (PM) muscles biopsy samples were collected from four carcasses (n = 4) at 45 min, 12 h, and 36 h postmortem from a commercial beef processing facility. Proteome profile variation between beef LL and PM during the early postmortem period were evaluated by tandem mass tag labeling containing ten different isobaric compounds.

2020-02-19 | PXD017535 | Pride

Gene expression changes in cutting and inverted cutting in Populus yunnanensis at the primary and rapid growth stages respectively

Project description:Illumina technology was used to generate mRNA profiles of stem apex of Populus yunnanensis with cutting and inverted cutting. Total RNA was extracted separately from each plant and pooled to three biological replicates per condition. RNA concentration and purity was measured using NanoDrop 2000(Thermo Fisher Scientific, Wilmington, DE). RNA integrity was assessed using the RNA Nano 6000 Assay Kit of the Agilent Bioanalyzer 2100 system (Agilent Technologies, CA, USA).

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Muscle-derived fibro-adipogenic progenitor cells for production of cultured bovine adipose tissue

Project description:Cultured meat is an emergent technology with the potential for significant environmental and animal welfare benefits. Accurate mimicry of traditional meat requires fat tissue; a key contributor to both the flavour and texture of meat. Here, we show that fibro-adipogenic progenitor cells (FAPs) are present in bovine muscle, and are transcriptionally and immunophenotypically distinct from satellite cells. These two cell types can be purified from a single muscle sample using a simple fluorescence-activated cell sorting (FACS) strategy. FAPs demonstrate high levels of adipogenic potential, as measured by gene expression changes and lipid accumulation, and can be proliferated for a large number of population doublings, demonstrating their suitability for a scalable cultured meat production process. Crucially, FAPs reach a mature level of adipogenic differentiation in three-dimensional, edible hydrogels. The resultant tissue accurately mimics traditional beef fat in terms of lipid profile and taste, and FAPs thus represent a promising candidate cell type for the production of cultured fat.

2022-01-02 | GSE189296 | GEO

Transcription profiling of Bos taurus Longissimus dorsi skeletal muscle from Korean Native Cattle (Hanwoo)

Project description:To identify transcriptional markers for beef traits related to meat tenderness and moisture, we measured the transcriptome of the Longissimus dorsi skeletal muscle in 10 Korean native cattle (KNC). We analyzed the correlation between the beef transcriptome and measurements of four different beef traits, shear force (SF), water holding capacity (WHC), cooking loss (CL), and loin eye area (LEA). We obtained non-overlapping and unique panels of genes showing strong correlations (|r| > 0.8) with SF, WHC, CL, and LEA, respectively. Functional studies of these genes indicated that SF was mainly related to energy metabolism, and LEA to rRNA processing. Interestingly, our data suggested that WHC is influenced by protein metabolism. Overall, the skeletal muscle transcriptome pointed to the importance of energy and protein metabolism in determining meat quality after the aging process. The panels of transcripts for beef traits may be useful for predicting meat tenderness and moisture. Experiment Overall Design: Gene expression profiles were correlated with beef traits measured at the same cattle.

2008-11-01 | E-GEOD-9256 | biostudies-arrayexpress

Combining label-free and label-based accurate quantifications with SWATH-MS: comparison with SRM and PRM for the evaluation of bovine muscle type effects

Project description:The performances of label-based SWATH-MS, SRM and PRM to accurately quantify ten candidate biomarkers of beef meat tenderness or marbling, in a cohort of 64 bovine muscle tissues expected to cover a wide biological range of these traits, were evaluated. Limits of quantification, dynamic range and quantification performances were assessed. Moreover, protein amounts for all proteins detected in SWATH-MS were estimated in a label-free manner.

2021-06-09 | PXD020638 | Pride

Effects of dietary protein from different sources on biotransformation, antioxidation, inflammation and exerted a great impact on lipid metabolism and mitochondrial oxidative phosphorylation in the rat liver

Project description:In this work, the effects of different sources of meat protein on liver metabolic enzymes were investigated. Rats were fed for 90 days with semisynthetic diets in which casein was fully replaced by isolated soybean, fish, chicken, pork, or beef proteins. Then, liver proteomics was performed using iTRAQ and LC−ESI−MS/MS. The results indicated that intake of meat protein diets significantly reduced the protein levels of CYP450s, GSTs, UGTs, and SULTs compared to those of the casein and soybean protein diet groups. The total antioxidant capacity and lipid peroxidation values did not differ between four meat protein diet groups and the casein diet group. However, GSH activity in the fish, chicken, and beef protein groups was significantly higher than those of the casein and soybean protein groups. The beef protein diet significantly upregulated the expression of immune-related proteins. The Keap1-Nrf2-ARE signaling pathway was suggested to involve the diet-mediated regulation of biotransformation, inflammation, and redox status.

2022-02-17 | PXD026732 | Pride

Transcriptomes from Longissimus dorsi samples of Korean Native Cattle (Hanwoo)

2008-10-06 | GSE9256 | GEO

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