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https://www.readbyqxmd.com/read/28103301/differences-in-beef-quality-between-angus-bos-taurus-taurus-and-nellore-bos-taurus-indicus-cattle-through-a-proteomic-and-phosphoproteomic-approach
#1
Rafael Torres de Souza Rodrigues, Mario Luiz Chizzotti, Camilo Elber Vital, Maria Cristina Baracat-Pereira, Edvaldo Barros, Karina Costa Busato, Rafael Aparecido Gomes, Márcio Machado Ladeira, Taiane da Silva Martins
Proteins are the major constituents of muscle and are key molecules regulating the metabolic changes during conversion of muscle to meat. Brazil is one of the largest exporters of beef and most Brazilian cattle are composed by zebu (Nellore) genotype. Bos indicus beef is generally leaner and tougher than Bos taurus such as Angus. The aim of this study was to compare the muscle proteomic and phosphoproteomic profile of Angus and Nellore. Seven animals of each breed previously subjected the same growth management were confined for 84 days...
2017: PloS One
https://www.readbyqxmd.com/read/28067368/the-effect-of-arginine-on-the-wnt-%C3%AE-catenin-signaling-pathway-during-porcine-intramuscular-preadipocyte-differentiation
#2
Xiaoling Chen, Yanliu Luo, Gang Jia, Guangmang Liu, Hua Zhao, Zhiqing Huang
Dietary l-arginine supplementation decreases backfat thickness and increases intramuscular fat content in growing-finishing pigs, but the underlying mechanisms are unknown. In this study, the effect of arginine on differentiation of porcine intramuscular preadipocytes was investigated in vitro. We showed that the mRNA and protein expressions of the peroxisome proliferator-activated receptor γ (PPARγ) and CCAAT/enhancer binding protein α were upregulated by arginine supplementation. Furthermore, the intracellular triglyceride level was increased by arginine supplementation...
January 9, 2017: Food & Function
https://www.readbyqxmd.com/read/28063249/effects-of-feeding-frequency-on-meat-quality-traits-and-longissimus-muscle-proteome-in-finishing-pigs
#3
J B Liu, X Cai, H Xiong, H F Zhang
Sixty-four barrows with an initial body weight of 59.8 ± 2.1 kg were allocated to one of the two feeding frequency regimes (had free access to diet and fed two meals per day). Pigs had free access (FA) to feed were fed on an ad libitum basis during the 8-week experimental period. Pigs fed twice daily (M2) were allowed to consume their meals in 2 h. Pigs fed twice daily had lower average daily feed intake (p < 0.01) and average daily gain (p < 0.1), but a greater G:F (p < 0.05) than FA pigs...
January 7, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28059854/perforator-phase-contrast-angiography-of-deep-inferior-epigastric-perforators-a-better-preoperative-imaging-tool-for-flap-surgery-than-computed-tomographic-angiography
#4
Xiangyu Yang, Michael J Miller, Harry T Friel, Allison Slijepcevic, Michael V Knopp
OBJECTIVE: The aim of this study was to demonstrate the feasibility of in vivo perforator visualization by a newly proposed magnetic resonance-based perforator phase contrast angiography (pPCA) technique for deep inferior epigastric perforator (DIEP) flap surgery and to prospectively compare its image quality and clinical value with computed tomographic angiography (CTA), the state-of-the-art perforator imaging technique. MATERIALS AND METHODS: Institutional review board approval and informed consent were obtained...
January 4, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28055958/maternal-butyrate-supplementation-induces-insulin-resistance-associated-with-enhanced-intramuscular-fat-deposition-in-the-offspring
#5
Yanping Huang, Shixing Gao, Jinglong Chen, Elke Albrecht, Ruqian Zhao, Xiaojing Yang
Maternal nutrition is important for the risk of the offspring to develop insulin resistance and adiposity later in life. The study was undertaken to determine effects of maternal butyrate supplementation on lipid metabolism and insulin sensitivity in the offspring skeletal muscle. The offspring of rats, fed a control diet or a butyrate diet (1% sodium butyrate) throughout gestation and lactation, was studied at weaning and at 60 days of age. The offspring of dams fed a butyrate diet had higher HOMA-insulin resistance and impaired glucose tolerance...
December 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/28046172/effect-of-divergent-selection-for-intramuscular-fat-on-sensory-traits-and-instrumental-texture-in-rabbit-meat
#6
M Martínez-Álvaroi, V Penalba, A Blasco, P Hernández
Intramuscular fat (IMF) is one of the main parameters affecting meat quality. This work analyzes the effect of selection for IMF on sensory attributes and instrumental texture parameters in rabbit meat. A total of 115 rabbits after 6 generations of divergent selection for IMF were slaughtered at 9 or 13 wk (57 and 58 animals, respectively). For each animal, the left longissimus dorsi muscle (LD) was analyzed by near-infrared spectroscopy to measure IMF whereas the right LD was used for the sensory or instrumental texture analysis...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28046152/divergent-selection-on-intramuscular-fat-in-rabbits-responses-to-selection-and-genetic-parameters
#7
M Martínez-Álvaro, P Hernández, A Blasco
A divergent selection experiment on intramuscular fat (IMF) was performed in rabbits. The aim of this study is to estimate the response to selection, the correlated responses in carcass and meat quality traits, and their genetic parameters. Selection criterion was the averaged phenotypic value of IMF measured at 9 wk of age in 2 full-sibs of the candidate. Traits considered were IMF, BW, chilled carcass weight, reference carcass weight, scapular and perirenal fat weights, carcass and meat color, pH, protein and fatty acid composition of meat...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28038376/lean-muscle-volume-of-the-thigh-has-a-stronger-relationship-with-muscle-power-than-muscle-strength-in-women-with-knee-osteoarthritis
#8
Michael J Davison, Monica R Maly, Peter J Keir, Sandani M Hapuhennedige, Amie T Kron, Jonathan D Adachi, Karen A Beattie
BACKGROUND: Thigh lean muscle and intramuscular fat have been implicated in the impairment of physical function observed in people with knee osteoarthritis. We investigated the relationships of quadriceps and hamstrings intramuscular fat fraction and lean muscle volume with muscle power and strength, controlling for neuromuscular activation, and physical performance in women with knee OA. METHODS: Women (n=20) 55years or older with symptomatic, radiographic knee osteoarthritis underwent a 3...
November 25, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/28029333/biochemical-and-organoleptic-characteristics-of-muscle-from-early-and-late-maturing-bulls-in-different-production-systems
#9
G B Mezgebo, F J Monahan, M McGee, E G O'Riordan, B Picard, R I Richardson, A P Moloney
In grass-based beef production systems (PS), early maturing (EM) breed types may be preferable to late maturing (LM) breed types in achieving adequate carcass fat cover. Biochemical and organoleptic characteristics of muscle from suckler bulls were investigated in EM and LM (n=28/breed) assigned to one of two PS (ad libitum concentrates and grass silage to slaughter (C) or ad libitum silage plus 2 kg concentrate daily during winter followed by 99 days at pasture and then an indoor finishing period on C (GSPC)) in a 2 breed type×2 PS factorial arrangement of treatments...
December 28, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27994193/association-and-expression-analyses-of-the-ucp2-and-ucp3-gene-polymorphisms-with-body-measurement-and-meat-quality-traits-in-qinchuan-cattle
#10
Yaning Wang, Wucai Yang, Linsheng Gui, Hongbao Wang, Linsen Zan
The uncoupling proteins (UCPs) belong to the mitochondrial inner membrane anion carrier superfamily and play an important role in energy homeostasis. Genetic studies have demonstrated that Ucp2 and Ucp3 gene variants are involved in obesity and metabolic syndrome. The aim of this study was to identify associations between polymorphisms of Ucp2 and Ucp3 genes and economically-important traits in Qinchuan cattle. In the present study, one single-nucleotide polymorphism (SNP) in the 5'UTR region (SNP1:g.C-754G) of the Ucp2 gene was identified by direct sequencing of 441 Qinchuan cattle...
December 2016: Journal of Genetics
https://www.readbyqxmd.com/read/27983643/genetic-marker-discovery-in-complex-traits-a-field-example-on-fat-content-and-composition-in-pigs
#11
REVIEW
Ramona Natacha Pena, Roger Ros-Freixedes, Marc Tor, Joan Estany
Among the large number of attributes that define pork quality, fat content and composition have attracted the attention of breeders in the recent years due to their interaction with human health and technological and sensorial properties of meat. In livestock species, fat accumulates in different depots following a temporal pattern that is also recognized in humans. Intramuscular fat deposition rate and fatty acid composition change with life. Despite indication that it might be possible to select for intramuscular fat without affecting other fat depots, to date only one depot-specific genetic marker (PCK1 c...
December 14, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27979739/genetic-variants-in-sirt3-transcriptional-regulatory-region-affect-promoter-activity-and-fat-deposition-in-three-cattle-breeds
#12
Linsheng Gui, Jieyun Hong, Sayed Haidar Abbas Raza, Linsen Zan
Sirtuin 3 (SIRT3) is a mitochondrial nicotinamide adenine dinucleotide (NAD)-dependent deacetylase. It has crucial roles in regulating the respiratory chain, in adenosine triphosphate (ATP) production, and in both the citric acid and urea cycles. The aim of this study was to investigate whether SIRT3 could be used as a candidate gene in the breeding of cattle. Expression analysis by quantitative real-time polymerase chain reactions (qPCR) indicated that expression levels of SIRT3 were highest in the kidney, rumen, liver, omasum and muscle...
December 12, 2016: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/27975165/screening-somatic-cell-nuclear-transfer-parameters-for-generation-of-transgenic-cloned-cattle-with-intragenomic-integration-of-additional-gene-copies-that-encode-bovine-adipocyte-type-fatty-acid-binding-protein-a-fabp
#13
Yong Guo, Hejuan Li, Ying Wang, Xingrong Yan, Xihui Sheng, Di Chang, Xiaolong Qi, Xiangguo Wang, Yunhai Liu, Junya Li, Hemin Ni
Somatic cell nuclear transfer (SCNT) is frequently used to produce transgenic cloned livestock, but it is still associated with low success rates. To our knowledge, we are the first to report successful production of transgenic cattle that overexpress bovine adipocyte-type fatty acid binding proteins (A-FABPs) with the aid of SCNT. Intragenomic integration of additional A-FABP gene copies has been found to be positively correlated with the intramuscular fat content in different farm livestock species. First, we optimized the cloning parameters to produce bovine embryos integrated with A-FABP by SCNT, such as applied voltage field strength and pulse duration for electrofusion, morphology and size of donor cells, and number of donor cells passages...
December 14, 2016: Molecular Biology Reports
https://www.readbyqxmd.com/read/27973679/effect-on-body-composition-and-bone-mineral-density-of-walking-with-a-robotic-exoskeleton-in-adults-with-chronic-spinal-cord-injury
#14
Antony D Karelis, Lívia Pinheiro Carvalho, Manuel Jose Castillo, Dany H Gagnon, Mylène Aubertin-Leheudre
OBJECTIVE: To examine the effect on body composition and bone mineral density of locomotor training using a robotic exoskeleton in individuals with spinal cord injury. STUDY DESIGN: Interventional study. SUBJECTS/METHODS: Five adults with a non-progressive traumatic complete sensorimotor spinal cord injury who were using a wheelchair as a primary mode of mobility. Participants performed a personalized 6-week progressive locomotor training programme using a robotic exoskeleton 3 times/week for up to 60 min...
January 19, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/27965943/bone-mineral-density-and-fatty-degeneration-of-thigh-muscles-measured-by-computed-tomography-in-hip-fracture-patients
#15
Myung Hoon Hahn, Ye-Yeon Won
BACKGROUND: Recently, as an independent fracture factor from Bone mineral density (BMD), muscle weakness due to the fatty degeneration of thigh muscles have been attracting attentions as causes of hip fracture. The purpose of this study is to investigate the correlation between the body composition and BMD and fatty degeneration of thigh muscles of the female patients over 65 years old with osteoporotic hip fracture. METHODS: This study was conducted with 178 female osteoporotic hip fracture patients...
November 2016: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/27960278/protein-restricted-diet-regulates-lipid-and-energy-metabolism-in-skeletal-muscle-of-growing-pigs
#16
Yinghui Li, Fengna Li, Shuai Chen, Yehui Duan, Qiuping Guo, Wenlong Wang, Chaoyue Wen, Yulong Yin
The aim of this work was to study the lipid metabolism and energy status of skeletal muscle of pigs as affected by dietary protein restriction. Eighteen growing pigs were distributed into three treatments, and each group was fed one of three levels (20, 17, and 14%) of crude protein (CP) diets. Our results showed that pigs fed the 20% CP had greater (P < 0.05) gain:feed and muscle weight than those fed the 14% CP, but no differences between the 20 and 17% CP treatments. Additionally, protein restriction tended to increase (P = 0...
December 14, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27960149/the-crucial-role-of-c18-cer-in-fat-induced-skeletal-muscle-insulin-resistance
#17
Agnieszka U Blachnio-Zabielska, Marta Chacinska, Mikkel H Vendelbo, Piotr Zabielski
BACKGROUND/AIMS: Muscle bioactive lipids accumulation leads to several disorder states. The most common are insulin resistance (IR) and type 2 diabetes. There is an ongoing debate which of the lipid species plays the major role in induction of muscle IR. Our aim was to elucidate the role of particular lipid group in induction of muscle IR. METHODS: The analyses were performed on muscle from the following groups of rats: 1. Control, fed standard diet, 2 HFD, fed high fat diet, 3...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27951464/compensatory-growth-in-crossbred-aberdeen-angus-and-belgian-blue-steers-effects-on-the-colour-shear-force-and-sensory-characteristics-of-longissimus-muscle
#18
S M Keady, S M Waters, R M Hamill, P G Dunne, M G Keane, R I Richardson, D A Kenny, A P Moloney
The effect of feed restriction (99days) followed by compensatory growth during a 200day re-alimentation period on the colour and sensory characteristics of meat from Aberdeen Angus×Holstein-Friesian (AN) and Belgian Blue×Holstein-Friesian (BB) steers was examined. Compensatory growth had no effect on muscle pH and temperature decline, chemical composition, drip loss, fat colour, or juiciness, but increased (P=0.009) Warner-Bratzler shear force and decreased tenderness (P=0.08) and overall liking (P=0.09)...
March 2017: Meat Science
https://www.readbyqxmd.com/read/27941616/mir-429-inhibits-differentiation-and-promotes-proliferation-in-porcine-preadipocytes
#19
Ying Peng, Fen-Fen Chen, Jing Ge, Jia-Yu Zhu, Xin-E Shi, Xiao Li, Tai-Yong Yu, Gui-Yan Chu, Gong-She Yang
MicroRNAs (miRNAs) are crucial regulatory molecules for adipogenesis. They contribute to the controlling of proliferation and differentiation of preadipocytes. Previous studies revealed an important role of miR-429 in cell invasion, migration, and apoptosis. Our previous work has shown that the expression of miR-429 in subcutaneous fat can be observed in newly born (3-day-old) Rongchang piglets rather than their adult counterparts (180-day-old). This expression pattern suggests that miR-429 might be functionally related to postnatal adipogenesis...
December 7, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27940421/estimation-of-the-intramuscular-fat-content-of-m-longissimus-thoracis-in-crossbred-beef-cattle-based-on-live-animal-measurements
#20
Zenon Nogalski, Paulina Pogorzelska-Przybyłek, Ireneusz Białobrzewski, Monika Modzelewska-Kapituła, Monika Sobczuk-Szul, Cezary Purwin
The objective of this study was to determine the usefulness of live animal measurements in estimating the intramuscular fat (IMF) content of m. longissimus thoracis (MLT) in beef cattle. Live animal measurements were performed in young crossbred bulls (96) and steers (59), the offspring of Holstein-Friesian (HF) cows and beef bulls (Limousin, Hereford and Charolais), at the end of the fattening period. The content of intramuscular fat was determined in samples from MLT by chemical analyses. A prediction model was developed by stepwise regression...
March 2017: Meat Science
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