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https://www.readbyqxmd.com/read/29243216/lipid-a-adjuvanted-chylomicron-mimicking-solid-fat-nanoemulsions-for-immunization-against-hepatitis-b
#1
Sunita Minz, Ravi Shankar Pandey
Traditional parenteral recombinant hepatitis B virus (HBV) vaccines have effectively reduced the disease burden despite being able to induce seroprotective antibody titers in 5-10% vaccinated individuals (non-responders). Moreover, an estimated 340 million chronic HBV cases are in need of treatment. Development of safe, stable, and more effective hepatitis B vaccine formulation would address these challenges. Recombinant hepatitis B surface antigen (rHBsAg) entrapped solid fat nanoemulsions (SFNs) containing monophosphoryl lipid A (MPLA) that was prepared and optimized by quality by design (QbD) using response surface methodology (RSM), i...
December 14, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29240830/a-low-fat-diet-ameliorates-pathology-but-retains-beneficial-effects-associated-with-cpt1b-knockout-in-skeletal-muscle
#2
Jaycob D Warfel, Bolormaa Vandanmagsar, Shawna E Wicks, Jingying Zhang, Robert C Noland, Randall L Mynatt
Inhibiting fatty acid oxidation is one approach to lowering glucose levels in diabetes. Skeletal muscle specific Carnitine Palmitoyltransferase 1b knockout mice (Cpt1bm-/-) comprise a model of impaired fat oxidation; and have decreased fat mass and enhanced glucose disposal and muscle oxidative capacity compared to controls. However, unfavorable effects occur relative to controls when Cpt1bm-/- mice are fed a 25% fat diet, including decreased activity and fat free mass and increased intramuscular lipid and serum myoglobin...
2017: PloS One
https://www.readbyqxmd.com/read/29239490/proteomic-changes-of-the-porcine-skeletal-muscle-in-response-to-chronic-heat-stress
#3
Yanjun Cui, Yue Hao, Jielei Li, Yanli Gao, Xianhong Gu
BACKGROUND: Heat stress (HS) has an adverse effect on meat quality; yet, the underlying molecular mechanisms altering meat quality due to muscle responses to stress remain unclear. Sixteen castrated male crossbreeds between Landrace × Yorkshire sows and Duroc boars (79.00 ± 1.50 kg body weight) were exposed to either thermal neutral (22 °C, n=8) or heat stress (30 °C, n=8) conditions for 3 weeks. Subsequently, the longissimus dorsi (LD) muscle of all pigs was assayed for meat quality parameters and proteome analysis...
December 14, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29236794/qualitative-analysis-of-the-viability-of-autogenous-fat-grafts-grafted-in-different-environments-of-interstitial-pressure-preliminary-results-and-description-of-a-new-experimental-model-in-mini-pigs
#4
Eduardo Gustavo Pires de Arruda, Alexandre Mendonça Munhoz, Walter Matsumoto, Thiago Ueda, Renata de Almeida Coudry, Rolf Gemperli
PURPOSE: To evaluate the feasibility of an experimental model of autologous fat graft (AFG) in different interstitial pressure (IP) environments. METHODS: Three mini-pigs(Minipig-BR) with age of 8 months (weight: 25-30 kg) were used. AFG were collected from the bucal fat pad, and grafted in the intramuscular pocket (biceps femoralis muscle). IP model was based on a fusiform ressection followed by primary closure "under tension". A blood pressure catheter located in the intramuscular region connected to a pressure module was applied to quantify IP...
November 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29229387/mir-124-3p-affects-the-formation-of-intramuscular-fat-through-alterations-in-branched-chain-amino-acid-consumption-in-sheep
#5
Yangyang Pan, Jiongjie Jing, Liying Qiao, Jianhua Liu, Junxing Zhao, Lixia An, Baojun Li, Weiwei Wang, Chen Liang, Wenzhong Liu
Intramuscular fat is used to determine meat quality in animals; however, factors affecting branched chain amino acid (BCAA) catabolism, which fuels adipogenesis and lipogenesis, remain unclear. To better understand the post-transcriptional influence on BCAA catabolism during adipogenesis, we investigated the role of miR-124-3p. Stromal vascular fraction (SVF) cells were isolated from skeletal muscle of sheep, and induced to differentiate. We determined the roles of miR-124-3p and its predicted target, branched chain keto acid dehydrogenase E1, alpha polypeptide (BCKDHA), in adipogenic differentiation and lipogenesis of SVFs after overexpressing or inhibiting miR-124-3p or BCKDHA, respectively...
December 8, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29212325/chronic-heat-stress-impairs-meat-quality-of-breast-muscle-in-broilers-through-affecting-redox-status-and-energy-substances-metabolism
#6
Zhuang Lu, Xiaofang He, Bingbing Ma, Lin Zhang, Jiaolong Li, Yun Jiang, Guanghong Zhou, Feng Gao
We investigated the molecular mechanisms of chronic heat stress impairing broilers breast meat quality. Broilers were assigned to three groups including normal control (NC) group, heat stress (HS) group and pair-fed (PF) group. After 7d of heat exposure (32°C), high temperature caused oxidative stress, and elevated the activity of citrate synthase (CS), mRNA expression of M-CPT1, and phosphorylation level of AMPKα, and reduced the mRNA expression of avUCP. After 14d of heat exposure, heat stress increased lightness and drip loss and decreased pH and shear force of breast meat...
December 7, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29201894/genetics-of-marbling-in-wagyu-revealed-by-the-melting-temperature-of-intramuscular-and-subcutaneous-lipids
#7
Sally S Lloyd, Jose L Valenzuela, Edward J Steele, Roger L Dawkins
Extreme marbling or intramuscular deposition of lipid is associated with Wagyu breeds and is therefore assumed to be largely inherited. However, even within 100% full blood Wagyu prepared under standard conditions, there is unpredictable scatter of the degree of marbling. Here, we evaluate melting temperature (Tm ) of intramuscular fat as an alternative to visual scores of marbling. We show that "long fed" Wagyu generally has Tm below body temperature but with a considerable range under standardized conditions...
2017: International Journal of Food Science
https://www.readbyqxmd.com/read/29198243/maternal-grazing-on-stubble-and-mediterranean-shrubland-improves-meat-lipid-profile-in-light-lambs-fed-on-concentrates
#8
L Mateo, P Delgado, J Ortuño, S Bañón
Concentrates-fed lamb meat is often associated with an unfavourable lipid profile (high levels of saturated and/or n-6 polyunsaturated fatty acids; SFA and PUFA). For this reason, Spanish sheep producers from Mediterranean areas are turning to traditional grazing by ewes to obtain healthier lamb meat. The objective of this research was to determine the effects of maternal grazing on the fatty acid (FA) composition of weaned lamb meat. The ewes (Segureña breed) were allocated to two different rearing systems during pregnancy (5 months) and lactation (45 days): (i) feeding indoors on barley grain and lucerne pellets; (ii) grazing on cereal stubble, fallow land and seasonal pastures consisting of Mediterranean shrubs, herbs and trees...
December 4, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29182958/vitamin-a-and-marbling-attributes-intramuscular-fat-hyperplasia-effects-in-cattle
#9
Z A Kruk, M J Bottema, L Reyes-Veliz, R E A Forder, W S Pitchford, C D K Bottema
Twenty Angus steers were fed a diet low in β-carotene and vitamin A for 10months. Ten steers were supplemented with vitamin A weekly, while the other ten steers did not receive any additional vitamin A. The results demonstrated that the restriction of vitamin A intake increased intramuscular fat (IMF) by 46%. This was a function of the total number of marbling flecks increasing by 22% and the average marbling fleck size increasing by 14%. Vitamin A restriction resulted in marbling flecks that were less branched (22%) and slightly more round (4%) with an increased minor axis length (7%)...
November 21, 2017: Meat Science
https://www.readbyqxmd.com/read/29181716/-imaging-characteristics-of-malignant-and-benign-lesions-of-skeletal-muscle
#10
REVIEW
L Leonard, H J Meyer, A Surov
There are many different tumors and tumor-like lesions with variable biological behavior that may affect the skeletal musculature. The aim of this study was to review the different intramuscular lesions and to provide a classification based on their radiological patterns. Intramuscular lesions can present as solid, liquid, semiliquid or fat equivalent manifestations and also as diffuse muscle enlargement and muscle calcification. Additionally, lesions with mixed patterns of the aforementioned alterations can also occur...
November 27, 2017: Der Radiologe
https://www.readbyqxmd.com/read/29171111/knockdown-of-ubiquitin-d-inhibits-adipogenesis-during-the-differentiation-of-porcine-intramuscular-and-subcutaneous-preadipocytes
#11
Chen Zhao, Xiangping Yao, Xiaochang Chen, Wenjing Wu, Fengxue Xi, Gongshe Yang, Taiyong Yu
OBJECTIVES: Intramuscular fat (IMF) has a significant influence on porcine meat quality. Ubiquitin D (UBD) is involved in the management of diverse intracellular processes. However, its physiological functions in adipose cell differentiation and proliferation are still poorly defined. MATERIALS AND METHODS: Intramuscular and subcutaneous preadipocytes were isolated from the longissimus dorsi and neck subcutaneous deposits of Chinese native Guanzhong Black piglets (3-5 days old), respectively...
November 23, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29169065/can-postmortem-proteolysis-explain-tenderness-differences-in-various-bovine-muscles
#12
Eva Veiseth-Kent, Mona E Pedersen, Sissel B Rønning, Rune Rødbotten
This study investigated the relationship between postmortem proteolysis, muscle pH decline, sarcomere length (SL), intramuscular fat (IMF) and Warner-Bratzler shear force (WBSF) in four bovine muscles (biceps femoris (BF), infraspinatus (IS), longissimus lumborum (LL), psoas major (PM). The WBSF was low in BF, IS and PM, while LL had a higher value (P<0.001), but still considered as tender. The PM had fastest pH decline (P<0.001), ultimate pH was lowest in LL and PM and highest for IS (P<0.001), sarcomeres were longest for PM and shortest for BF and LL (P<0...
November 8, 2017: Meat Science
https://www.readbyqxmd.com/read/29168191/genetic-variants-in-il15-promoter-affect-transcription-activity-and-intramuscular-fat-deposition-in-longissimus-dorsi-muscle-of-pigs
#13
D He, Z Jiang, Y Tian, H Han, M Xia, W Wei, L Zhang, J Chen
Intramuscular fat (IMF) content is a key aspect of pork quality. Elucidation of intramuscular adipocyte regulation mechanisms is important for improving IMF content. Intramuscular adipocytes are dispersed among muscle fibers, so they are inclined to be affected by muscle-derived factors. Interleukin-15 is a major muscle-secreted factor. In this study, the genetic and physiological impacts of IL15 on adipogenesis is investigated. The promoter region of IL15 was scanned by comparative sequencing using two DNA pools of high- and low-IMF individuals...
November 22, 2017: Animal Genetics
https://www.readbyqxmd.com/read/29154265/analysis-of-correlation-between-degeneration-of-lower-lumbar-paraspinal-muscles-and-spinopelvic-alignment-in-patients-with-osteoporotic-vertebral-compression-fracture
#14
Qiguang Li, Jianmin Sun, Xingang Cui, Zhensong Jiang, Tao Li
BACKGROUND: A few studies have pointed that trunk extensors may affect the spinopelvic alignment; however, little is known about the exact association between degeneration of lower lumbar paraspinal muscles and spinopelvic parameters. OBJECTIVE: The study aimed to analyze the relationship between degeneration of lower lumbar paraspinal muscles and spinopelvic alignment in patients with osteoporotic vertebral compression fracture (OVCF). METHODS: Thirty-nine OVCF patients were involved in this study...
November 6, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29147102/the-relationships-between-muscle-fiber-characteristics-intramuscular-fat-content-and-fatty-acid-compositions-in-m-longissimus-lumborum-of-hanwoo-steers
#15
Seon-Tea Joo, Sung-Hyun Joo, Young-Hwa Hwang
The objective of this study was to investigate the relationship between muscle fiber characteristics, intramuscular fat (IMF) content, and fatty acids composition in longissimus lumborum (LL) muscle from Hanwoo steers. The LL muscles were obtained from four quality grades (QG) carcasses and subjected to histochemical analysis. There were significant (p<0.05) differences in fiber number percentage (FNP) and fiber area percentage (FAP) of muscle fiber types among muscles from four QGs. Both FNP and FAP of type I increased while those of type IIB decreased with increasing QG from QG 2 to QG 1(++) (p<0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/29140299/pdgfr%C3%AE-regulated-by-mir-34a-and-foxo1-promotes-adipogenesis-in-porcine-intramuscular-preadipocytes-through-erk-signaling-pathway
#16
Yun-Mei Sun, Jin Qin, Shu-Ge Liu, Rui Cai, Xiao-Chang Chen, Xiang-Ming Wang, Wei-Jun Pang
Suitable intramuscular fat (IMF) content improves porcine meat quality. The vital genes regulating IMF deposition are necessary for the selection and breeding of an IMF trait. However, the effect and mechanism of PDGFRα on IMF deposition are still unclear. Here, PDGFRα is moderately expressed in porcine longissimus dorsi muscle (LD), whereas it highly expressed in white adipose tissue (WAT). Moreover, PDGFRα-positive cells were located in the gaps of LD fibers which there were IMF adipocytes. Compared with 180-day-old and lean-type pigs, the levels of PDGFRα were much higher in one-day-old and fat-type pigs...
November 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29138674/exercise-training-restores-cardiac-microrna-1-and-microrna-29c-to-nonpathological-levels-in-obese-rats
#17
André C Silveira, Tiago Fernandes, Úrsula P R Soci, João L P Gomes, Diego L Barretti, Glória G F Mota, Carlos Eduardo Negrão, Edilamar M Oliveira
We previously reported that aerobic exercise training (AET) consisted of 10 weeks of 60-min swimming sessions, and 5 days/week AET counteracts CH in obesity. Here, we evaluated the role of microRNAs and their target genes that are involved in heart collagen deposition and calcium signaling, as well as the cardiac remodeling induced by AET in obese Zucker rats. Among the four experimental Zucker groups: control lean rats (LZR), control obese rats (OZR), trained lean rats (LZR + TR), and trained obese rats (OZR + TR), heart weight was greater in the OZR than in the LZR group due to increased cardiac intramuscular fat and collagen...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29121524/eating-quality-traits-of-shoulder-roast-and-stir-fry-cuts-outperformed-loin-and-silverside-cuts-sourced-from-entire-and-immunocastrated-male-pigs
#18
H A Channon, D N D'Souza, F R Dunshea
This study investigated the effects of ageing period (2 or 7days), endpoint temperature (70 or 75°C), cut type (loin (M. longissimus thoracis et lumborum), silverside (M. biceps femoris), blade (M. triceps brachii) and chuck tender (M. supraspinatus)), cooking method (roast and stir fry (all cuts) and steak (loin only)) on eating quality attributes of pork from entire and immunocastrated male pigs. Higher intramuscular fat levels were found in all cuts from immunocastrated males compared with entire males...
October 31, 2017: Meat Science
https://www.readbyqxmd.com/read/29121115/the-response-of-gene-expression-associated-with-lipid-metabolism-fat-deposition-and-fatty-acid-profile-in-the-longissimus-dorsi-muscle-of-gannan-yaks-to-different-energy-levels-of-diets
#19
Chao Yang, Jianbin Liu, Xiaoyun Wu, Pengjia Bao, Ruijun Long, Xian Guo, Xuezhi Ding, Ping Yan
The energy available from the diet, which affects fat deposition in vivo, is a major factor in the expression of genes regulating fat deposition in the longissimus dorsi muscle. Providing high-energy diets to yaks might increase intramuscular fat deposition and fatty acid concentrations under a traditional grazing system in cold seasons. A total of fifteen adult castrated male yaks with an initial body weight 274.3 ± 3.14 kg were analyzed for intramuscular adipose deposition and fatty acid composition. The animals were divided into three groups and fed low-energy (LE: 5...
2017: PloS One
https://www.readbyqxmd.com/read/29108061/genetic-correlations-between-wool-traits-and-meat-quality-traits-in-merino-sheep
#20
S I Mortimer, S Hatcher, N M Fogarty, J H J van der Werf, D J Brown, A A Swan, R H Jacob, G H Geesink, D L Hopkins, J E Hocking Edwards, E N Ponnampalam, R D Warner, K L Pearce, D W Pethick
Genetic correlations between 29 wool production and quality traits and 25 meat quality and nutritional value traits were estimated for Merino sheep from an Information Nucleus (IN). Genetic correlations among the meat quality and nutritional value traits are also reported. The IN comprised 8 flocks linked genetically and managed across a range of sheep production environments in Australia. The wool traits included over 5,000 yearling and 3,700 adult records for fleece weight, fiber diameter, staple length, staple strength, fiber diameter variation, scoured wool color, and visual scores for breech and body wrinkle...
October 2017: Journal of Animal Science
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