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https://www.readbyqxmd.com/read/29667846/effect-of-gender-on-breast-and-thigh-turkey-meat-quality
#1
F Gálvez, R Domínguez, M Pateiro, J Carballo, I Tomasevic, J M Lorenzo
1. The influence of gender on chemical composition, physicochemical parameters, fatty acid profile, amino acid and mineral composition of turkey breast and thigh meat was studied in order to assess nutrient requirements. 2. Chemical composition showed that only intramuscular fat in breast meat was significantly affected by gender (P<0.05). The results showed a higher percentage of intramuscular fat in male samples, almost double the amount found in females (0.73% vs. 0.38%). 3.For meat colour parameters, only a* showed different results between sexes, with male samples (breast: P<0...
April 18, 2018: British Poultry Science
https://www.readbyqxmd.com/read/29662503/identification-and-functional-analysis-of-long-intergenic-non-coding-rnas-underlying-intramuscular-fat-content-in-pigs
#2
Cheng Zou, Long Li, Xiaofang Cheng, Cencen Li, Yuhua Fu, Chengchi Fang, Changchun Li
Intramuscular fat (IMF) content is an important trait that can affect pork quality. Previous studies have identified many genes that can regulate IMF. Long intergenic non-coding RNAs (lincRNAs) are emerging as key regulators in various biological processes. However, lincRNAs related to IMF in pig are largely unknown, and the mechanisms by which they regulate IMF are yet to be elucidated. Here we reconstructed 105,687 transcripts and identified 1,032 lincRNAs in pig longissimus dorsi muscle (LDM) of four stages with different IMF contents based on published RNA-seq...
2018: Frontiers in Genetics
https://www.readbyqxmd.com/read/29661202/exercise-training-improves-intramuscular-triglyceride-lipolysis-sensitivity-in-high-fat-diet-induced-obese-mice
#3
Kangeun Ko, Jinhee Woo, Ju Yong Bae, Hee Tae Roh, Yul Hyo Lee, Ki Ok Shin
BACKGROUND: The purpose of this study was to determine whether regular exercise training enhances intramuscular triglyceride (IMTG) lipolysis sensitivity during consumption of a continued high-fat diet by exploring changes in biochemical factors activated by IMTG lipolysis. METHODS: Male C57BL/6 mice aged 4 weeks were randomly divided into a high-fat diet group (HF) to induce obesity for 6 weeks and a control (CO) group. Thereafter, the HF group was divided into a high-fat diet group (HF) and high-fat diet + training group (HFT)...
April 16, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29652108/skeletal-muscle-specific-overexpression-of-heat-shock-protein-72-improves-skeletal-muscle-insulin-stimulated-glucose-uptake-but-does-not-alter-whole-body-metabolism
#4
Jps Marshall, E Estevez, H L Kammoun, E J King, C R Bruce, B G Drew, H Qian, P Illiades, P Gregorevic, M A Febbraio, D C Henstridge
AIMS: The induction of heat shock protein 72 (Hsp72) via heating, genetic manipulation or by pharmacological activation is metabolically protective in the setting of obesity-induced insulin resistance across mammalian species. In this study, we set out to determine whether the overexpression of Hsp72, specifically in skeletal muscle, can protect against high-fat diet (HFD)-induced obesity and insulin resistance. MATERIALS AND METHODS: An Adeno-Associated Viral vector (AAV) designed to overexpress Hsp72 in skeletal muscle only, was used to study the effects of increasing Hsp72 levels on various metabolic parameters...
April 13, 2018: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29623566/the-effect-of-qtl-rich-region-polymorphisms-identified-by-targeted-dna-seq-on-pig-production-traits
#5
Anna Stuczyńska, Katarzyna Piórkowska, Mirosław Tyra, Kacper Żukowski
The aim of the present study was to analyse the effect of PLCD4, PECR, FN1 and PNKD mutations on pig productive traits and tested the usefulness of targeted enrichment DNA sequencing method as tool for preselection of genetic markers. The potential genetic markers for pig productive traits were identified by using targeted enrichment DNA sequencing of chromosome 15 region that is QTL-rich. The selected mutations were genotyped by using HRM, Sanger sequencing and PCR-ACRS methods. The association study was performed by using GLM model in SAS program and included over 500 pigs of 5 populations maintained in Poland...
April 5, 2018: Molecular Biology Reports
https://www.readbyqxmd.com/read/29621327/effects-of-feed-allowance-and-indispensable-amino-acid-reduction-on-feed-intake-growth-performance-and-carcass-characteristics-of-growing-pigs
#6
Stefano Schiavon, Mirco Dalla Bona, Giuseppe Carcò, Luca Carraro, Lutz Bunger, Luigi Gallo
The hypothesis that pigs placed on diets with reduced indispensable amino acid (AA) content attempts to offset the reduction in the nutrient density with increased feed intake was tested. In the experiment, feeds with a high or a low AA content were administrated to pigs fed ad-libitum or restrictively according to a 2 × 2 factorial design. Ninety-six barrows were housed in 8 pens (12 pigs/pen) equipped with automatic feeders. Within pen, and from 47 body weight (BW) onwards, 6 pigs were fed ad libitum. The others pigs were allowed to consume, as a maximum, the feed amounts indicated by the breeding company feeding plane to optimize the feed efficiency...
2018: PloS One
https://www.readbyqxmd.com/read/29617344/a-key-gene-plin1-can-affect-porcine-intramuscular-fat-content-based-on-transcriptome-analysis
#7
Bojiang Li, Qiannan Weng, Chao Dong, Zengkai Zhang, Rongyang Li, Jingge Liu, Aiwen Jiang, Qifa Li, Chao Jia, Wangjun Wu, Honglin Liu
Intramuscular fat (IMF) content is an important indicator for meat quality evaluation. However, the key genes and molecular regulatory mechanisms affecting IMF deposition remain unclear. In the present study, we identified 75 differentially expressed genes (DEGs) between the higher (H) and lower (L) IMF content of pigs using transcriptome analysis, of which 27 were upregulated and 48 were downregulated. Notably, Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis indicated that the DEG perilipin-1 ( PLIN1 ) was significantly enriched in the fat metabolism-related peroxisome proliferator-activated receptor (PPAR) signaling pathway...
April 4, 2018: Genes
https://www.readbyqxmd.com/read/29614102/does-growth-path-influence-beef-lipid-deposition-and-fatty-acid-composition
#8
Ana S H Costa, Paulo Costa, Susana P Alves, Cristina M Alfaia, José A M Prates, Veronica Vleck, Isabelle Cassar-Malek, Jean-François Hocquette, Rui J B Bessa
Despite the recent advances in transcriptomics, gene expression studies addressing cattle´s skeletal muscle adaptations in response to compensatory growth are warranted, particularly regarding lipid metabolism due to its impact in meat sensory and nutritional traits. In the present study, in comparison to ad libitum feeding, a period of feed restriction was used in order to understand the changes in bull´s lipid metabolism and gene expression of the adipogenic and lipogenic pathways after re-alimentation...
2018: PloS One
https://www.readbyqxmd.com/read/29613984/t2-weighted-dixon-turbo-spin-echo-for-accelerated-simultaneous-grading-of-whole-body-skeletal-muscle-fat-infiltration-and-edema-in-patients-with-neuromuscular-diseases
#9
Sarah Schlaeger, Elisabeth Klupp, Dominik Weidlich, Barbara Cervantes, Sarah C Foreman, Marcus Deschauer, Benedikt Schoser, Christoph Katemann, Hendrik Kooijman, Ernst J Rummeny, Claus Zimmer, Jan S Kirschke, Dimitrios C Karampinos
OBJECTIVE: The assessment of fatty infiltration and edema in the musculature of patients with neuromuscular diseases (NMDs) typically requires the separate performance of T1-weighted and fat-suppressed T2-weighted sequences. T2-weighted Dixon turbo spin echo (TSE) enables the generation of T2-weighted fat- and water-separated images, which can be used to assess both pathologies simultaneously. The present study examines the diagnostic performance of T2-weighted Dixon TSE compared with the standard sequences in 10 patients with NMDs and 10 healthy subjects...
April 2, 2018: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29596609/from-bedside-to-bench-the-effect-of-muscular-denervation-on-fat-grafting-to-the-breast-by-comparing-take-rate-quality-and-longevity
#10
Patricia E Engels, Elisabeth A Kappos, Patricia K Sieber, Robyn M Benz, Sarah Thommen, Dirk J Schaefer, Daniel F Kalbermatten
Background: Autologous fat grafting (AFG) to the breast is a frequent procedure in aesthetic and reconstructive surgery. Despite pure volume gain, questions remain regarding the engraftment rate, quality, and longevity. Little is known about the role of recipient tissue or innervation of the grafted area. Objectives: The goal of this study was to determine the optimal recipient layer and muscular the pretreatment of AFG. Methods: Fat was grafted to the breast, pectoralis muscle, or adjacent subcutaneous tissue of 42 rats...
March 27, 2018: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29569538/serum-metabolomics-study-of-nutrient-metabolic-variations-in-chronic-heat-stressed-broilers
#11
Zhuang Lu, Xiaofang He, Bingbing Ma, Lin Zhang, Jiaolong Li, Yun Jiang, Guanghong Zhou, Feng Gao
To investigate the effects of heat stress on broiler metabolism, we assigned 144 broilers to normal control (NC), heat stress (HS) or pair-fed (PF) groups and then monitored the effects using growth performance, carcass characteristics, biochemical assays and GC-MS-based metabolomics. The up-regulation of cloacal temperature confirmed that our experiment was successful in inducing chronic heat stress. The average daily gain and average daily feed intake of the HS group were significantly lower than those of the NC group, by 28·76 and 18·42 %, respectively (P1 and P<0·05)...
April 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29564848/validation-of-anthropometric-muscle-cross-sectional-area-equation-after-spinal-cord-injury
#12
Rodney C Wade, Robert M Lester, Ashraf S Gorgey
The purposes of this study were to cross-validate a previously derived anthropometric estimation equation specific to the spinal cord injury population and determine the ratios of absolute skeletal muscle cross-sectional area (CSA) for the quadriceps, hamstrings, and adductor muscle groups based on magnetic resonance imaging. The validation cohort consisted of eleven men with chronic (>1 yr. post injury) spinal cord injury (SCI). Ten individuals were classified as AIS A or B and one participant was classified as an AIS C...
March 21, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29564476/population-based-study-of-age-and-sex-related-differences-in-muscle-density-and-size-in-thoracic-and-lumbar-spine-the-framingham-study
#13
F Johannesdottir, B Allaire, D E Anderson, E J Samelson, D P Kiel, M L Bouxsein
Relative age-related deficit in trunk muscle density was greater in women than men whereas the relative decrease in muscle mass with age was similar in both sexes. The greater muscle fat content and greater age-related fat accumulation among women may contribute to women suffering more functional disabilities than men. INTRODUCTION: A better understanding of the effect of aging on trunk musculature will have implications for physical function, disability, pain, and risk of injury in older adults...
March 22, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29561673/effects-of-thickness-of-muscle-and-subcutaneous-fat-on-efficacy-of-gluteal-intramuscular-injection-sites
#14
Asmahan Elgellaie, Elfriede Ashcroft, Theresa A Larkin
Intramuscular injections given at the dorsogluteal and ventrogluteal sites are intended for the gluteus maximus and gluteus medius muscles, respectively. However, little research has confirmed the reliability of these sites for the presence and thickness of the target and other muscles, and subcutaneous fat. This study characterised and compared these at the V-method and G-method ventrogluteal sites and dorsogluteal site (n=60). Gluteus maximus, medius and minimus were identified at each site, plus tensor fascia latae at ventrogluteal sites...
March 22, 2018: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/29559925/agouti-signaling-protein-and-its-receptors-as-potential-molecular-markers-for-intramuscular-and-body-fat-deposition-in-cattle
#15
Yinuo Liu, Elke Albrecht, Lisa Schering, Christa Kuehn, Runjun Yang, Zhihui Zhao, Steffen Maak
Transcriptome analyses of bovine muscle tissue differing in intramuscular fat (IMF) content identified agouti signaling protein (ASIP) as a promising candidate gene for fat deposition. The protein is secreted from adipocytes and may serve as a signaling molecule in cross-talk between adipocytes and muscle fibers or other cells. Known receptors for ASIP are the melanocortin receptors (e.g., MC4R) and attractin (ATRN). The present study was conducted to determine relationships between the expression of ASIP and its receptors in different bovine tissues with fat deposition...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29554357/effects-of-aging-on-fat-deposition-and-meat-quality-in-sheldrake-duck
#16
Jun He, Heyang Zheng, Daodong Pan, Tao Liu, Yangying Sun, Jinxuan Cao, Zhen Wu, Xiaoqun Zeng
Sheldrake is a duck breed widely used for its meat and eggs. In this study, the quantities of abdominal fat, sebum, intramuscular fat and liver fat, meat quality (pH, cooking loss, drip loss, and shear force), and expression and activity of several enzymes at different ages were determined. The results showed that the fat content increased (P < 0.05) during the aging process (90 d, 180 d, 270 d, and 360 d). Fatty acid synthase (FAS) and malic enzyme (ME) were chosen to represent the activity of lipid biosynthesis in Sheldrake ducks...
March 15, 2018: Poultry Science
https://www.readbyqxmd.com/read/29554116/skeletal-muscle-magnetic-resonance-biomarkers-correlate-with-function-and-sentinel-events-in-duchenne-muscular-dystrophy
#17
Alison M Barnard, Rebecca J Willcocks, Erika L Finanger, Michael J Daniels, William T Triplett, William D Rooney, Donovan J Lott, Sean C Forbes, Dah-Jyuu Wang, Claudia R Senesac, Ann T Harrington, Richard S Finkel, Barry S Russman, Barry J Byrne, Gihan I Tennekoon, Glenn A Walter, H Lee Sweeney, Krista Vandenborne
OBJECTIVE: To provide evidence for quantitative magnetic resonance (qMR) biomarkers in Duchenne muscular dystrophy by investigating the relationship between qMR measures of lower extremity muscle pathology and functional endpoints in a large ambulatory cohort using a multicenter study design. METHODS: MR spectroscopy and quantitative imaging were implemented to measure intramuscular fat fraction and the transverse magnetization relaxation time constant (T2) in lower extremity muscles of 136 participants with Duchenne muscular dystrophy...
2018: PloS One
https://www.readbyqxmd.com/read/29548459/effect-of-animal-age-on-the-nutritional-and-physicochemical-qualities-of-ovine-bresaola
#18
Renyu Zhang, Michelle J Yoo, Jessica Gathercole, Mariza Gomes Reis, Mustafa M Farouk
Bresaola made from New Zealand mutton and lamb, were compared in quality attributes. Mutton bresaola had slightly lower protein and higher moisture contents, and similar amount of intramuscular fat and instrumental colour compared to that of the lamb. 36 and 80 unique endogenous peptides were observed in mutton and lamb, respectively. Proteolysis during dry-curing was affected by the age of the animal and has resulted in softer and easier to chew textural properties to the mutton bresaola. Significantly higher amounts of total free amino acids and higher proportion of essential amino acids were detected in the mutton bresaola from digestion simulation compared to that from lamb...
July 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29542875/muscular-responses-to-testosterone-replacement-vary-by-administration-route-a-systematic-review-and-meta-analysis
#19
Jared W Skinner, Dana M Otzel, Andrew Bowser, Daniel Nargi, Sanjay Agarwal, Mark D Peterson, Baiming Zou, Stephen E Borst, Joshua F Yarrow
BACKGROUND: Inconsistent fat-free mass (FFM) and muscle strength responses have been reported in randomized clinical trials (RCTs) administering testosterone replacement therapy (TRT) to middle-aged and older men. Our objective was to conduct a meta-analysis to determine whether TRT improves FFM and muscle strength in middle-aged and older men and whether the muscular responses vary by TRT administration route. METHODS: Systematic literature searches of MEDLINE/PubMed and the Cochrane Library were conducted from inception through 31 March 2017 to identify double-blind RCTs that compared intramuscular or transdermal TRT vs...
March 15, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29533815/prediction-of-intramuscular-fat-content-and-shear-force-in-texel-lamb-loins-using-combinations-of-different-x-ray-computed-tomography-ct-scanning-techniques
#20
N Clelland, L Bunger, K A McLean, S Knott, K R Matthews, N R Lambe
Computed tomography (CT) parameters, including spiral computed tomography scanning (SCTS) parameters, intramuscular fat (IMF) and mechanically measured shear force were derived from two previously published studies. Purebred Texel (n = 377) of both sexes, females (n = 206) and intact males (n = 171) were used to investigate the prediction of IMF and shear force in the loin. Two and three dimensional CT density information was available. Accuracies in the prediction of shear force and IMF ranged from R2 0...
March 6, 2018: Meat Science
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