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Protein AND Fat conversion

Zihai Wei, Baoxin Zhang, Jianxin Liu
Background: Corn stover (CS) is an abundant source of feed for livestock in China. However, it is low in nutritional value that we have been seeking technologies to improve. Previous studies show that non-fiber carbohydrate (NFC) might limit the utilization of a CS diet by lactating dairy cows. Thus, this study was conducted to investigate the lactation performance and rumen fermentation characteristics in lactating cows consuming CS with two contents of NFC compared to an alfalfa hay-containing diet...
2018: Journal of Animal Science and Biotechnology
Dina A Schneider, Soo-Ho Choi, Colin Agatisa-Boyle, Laurence Zhu, Jungsu Kim, Jennifer Pattison, Dorothy D Sears, Philip L S M Gordts, Longhou Fang, Yury I Miller
Apolipoprotein A-I Binding Protein (AIBP) has been shown to augment cholesterol efflux from endothelial cells and macrophages. In zebrafish and mice, AIBP-mediated regulation of cholesterol levels in the plasma membrane of endothelial cells controls angiogenesis. The goal of this work was to evaluate metabolic changes and atherosclerosis in AIBP loss-of-function and gain-of-function animal studies. Here we show that Apoa1bp-/-Ldlr-/- mice fed a high-cholesterol, high-fat diet had exacerbated weight gain, liver steatosis, glucose intolerance, hypercholesterolemia and hypertriglyceridemia, and larger atherosclerotic lesions compared to Ldlr-/- mice...
March 20, 2018: Journal of Lipid Research
Ying Huang, Fang Liu, Fang Zhang, Pingsheng Liu, Tao Xu, Wenjun Ding
Numerous studies have demonstrated that vanadium compounds are able to improve lipemia and triglyceridemia in both humans and animals. However, the molecular mechanism remains elusive. The present study was conducted to investigate the anti-hyperlipidemic effect of vanadium(IV) complex with 4-chlorodipicolinic acid (VOdipic-Cl)-induced autophagy on hepatic lipid accumulation. To explore the possible underlying mechanisms, primary rat hepatocytes, human hepatoma cell line HepG2, and liver tissue from C57BL/6 mice fed a high-fat diet (HFD) were used...
March 14, 2018: Journal of Inorganic Biochemistry
Saori Kataoka, Toshio Norikura, Shin Sato
Maternal malnutrition is known to increase the risk of obesity in offspring. We investigated whether green tea extract (GTE) intake during lactation affects obesity-related fibrosis and inflammation in the kidney of high-fat-diet-fed adult offspring of protein-restricted-diet-fed dams during pregnancy and lactation. Pregnant Wistar rats received diets containing 20% (normal-protein, NP) or 8% (low-protein, LP) casein, and they received 0%-, 0.12%- or 0.24%-GTE-containing LP diets (LP/LP, LP/LGT and LP/HGT, respectively) during lactation...
February 9, 2018: Journal of Nutritional Biochemistry
L Hanrahan, N McHugh, T Hennessy, B Moran, R Kearney, M Wallace, L Shalloo
The global dairy industry needs to reappraise the systems of milk production that are operated at farm level with specific focus on enhancing technical efficiency and competitiveness of the sector. The objective of this study was to quantify the factors associated with costs of production, profitability, and pasture use, and the effects of pasture use on financial performance of dairy farms using an internationally recognized representative database over an 8-yr period (2008 to 2015) on pasture-based systems...
March 7, 2018: Journal of Dairy Science
Xiaoli Hou, Yongzhao Zhang, Wei Li, Alexander J Hu, Chi Luo, Wenhui Zhou, Jamie K Hu, Stefano G Daniele, Jinfeng Wang, Jinghao Sheng, Yongsheng Fan, Andrew S Greenberg, Stephen R Farmer, Miaofen G Hu
Whereas white adipose tissue depots contribute to the development of metabolic diseases, brown and beige adipose tissue has beneficial metabolic effects. Here we show that CDK6 regulates beige adipocyte formation. We demonstrate that mice lacking the CDK6 protein or its kinase domain (K43M) exhibit significant increases beige cell formation, enhanced energy expenditure, better glucose tolerance, and improved insulin sensitivity, and are more resistant to high-fat diet-induced obesity. Re-expression of CDK6 in Cdk6-/- mature or precursor cells, or ablation of RUNX1 in K43M mature or precursor cells, reverses these phenotypes...
March 9, 2018: Nature Communications
C Desert, E Baéza, M Aite, M Boutin, A Le Cam, J Montfort, M Houee-Bigot, Y Blum, P F Roux, C Hennequet-Antier, C Berri, S Metayer-Coustard, A Collin, S Allais, E Le Bihan, D Causeur, F Gondret, M J Duclos, S Lagarrigue
BACKGROUND: Because the cost of cereals is unstable and represents a large part of production charges for meat-type chicken, there is an urge to formulate alternative diets from more cost-effective feedstuff. We have recently shown that meat-type chicken source is prone to adapt to dietary starch substitution with fat and fiber. The aim of this study was to better understand the molecular mechanisms of this adaptation to changes in dietary energy sources through the fine characterization of transcriptomic changes occurring in three major metabolic tissues - liver, adipose tissue and muscle - as well as in circulating blood cells...
March 7, 2018: BMC Genomics
P Jariyahatthakij, B Chomtee, T Poeikhampha, W Loongyai, C Bunchasak
This study was conducted to evaluate the effects of supplementing methionine (Met) in a low-protein (Low-CP) diet during d 11 to 24 and subsequently feeding with a low-metabolizable energy diet (Low-ME; -75 kcal/kg) or a normal ME diet during d 25 to 42 on the productive performance, blood chemical profile, and lipid metabolism-related gene expression of broiler chickens. The 1,600 broiler chicks were divided into 5 groups as follows: 1) Normal CP, then Normal ME; 2) Low-CP, then Normal ME; 3) Low-CP, then Low-ME; 4) Low-CP+Met, then Normal ME; and 5) Low-CP+Met, then Low-ME...
March 5, 2018: Poultry Science
Sarah Morar Schneider, Vidya Sridhar, Amanda K Bettis, Heather Heath-Barnett, Cynthia J Balog-Alvarez, Lee-Jae Guo, Rachel Johnson, Scott Jaques, Stanislav Vitha, Alan C Glowcwski, Joe N Kornegay, Peter P Nghiem
PURPOSE: Metabolic dysfunction in Duchenne muscular dystrophy (DMD) is characterized by reduced glycolytic and oxidative enzymes, decreased and abnormal mitochondria, decreased ATP, and increased oxidative stress. We analyzed glucose metabolism as a potential disease biomarker in the genetically homologous golden retriever muscular dystrophy (GRMD) dog with molecular, biochemical, and in vivo imaging. PROCEDURES: Pelvic limb skeletal muscle and left ventricle tissue from the heart were analyzed by mRNA profiling, qPCR, western blotting, and immunofluorescence microscopy for the primary glucose transporter (GLUT4)...
March 5, 2018: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
Jiejie Zhao, Xuelian Xiong, Yao Li, Xing Liu, Tao Wang, Hong Zhang, Yang Jiao, Jingjing Jiang, Huijie Zhang, Qiqun Tang, Xin Gao, Xuejun Li, Yan Lu, Bin Liu, Cheng Hu, Xiaoying Li
Type 2 diabetes has become one of the most serious and long-term threats to human health. However, the molecular mechanism that links obesity to insulin resistance remains largely unknown. Here, we show that F-box and WD repeat domain-containing 7 (FBXW7), an E3 ubiquitin-protein ligase, is markedly downregulated in the liver of two obese mouse models and obese human subjects. We further identify a functional low-frequency human FBXW7 coding variant (p. Ala204Thr) in Chinese population, which is associated with elevated blood glucose and type 2 diabetes risk...
February 23, 2018: Diabetes
Ankita Srivastava, Kripa Shankar, Muheeb Beg, Sujith Rajan, Abhishek Gupta, Salil Varshney, Durgesh Kumar, Sanchita Gupta, Raj Kumar Mishra, Anil Nilkanth Gaikwad
Defect in insulin signaling leads to the development of insulin resistance followed by type 2 diabetes. Exploiting our previously developed physiological chronic hyperinsulinemia (CI)-mediated insulin resistance (IR) model, we wanted to understand how miRNAs contribute to the development of IR. Amongst the identified and validate miRNAs, the expression of miR-27b was found to be highly upregulated during CI-induced IR in 3T3-L1 adipocytes. We also validated the expression of miR-27b in CI-induced IR in human mesenchymal stem cell (hMSC)-derived adipocytes and in vivo high fat diet (HFD)-induced IR mice model...
February 17, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
Y Yagoubi, H Hajji, S Smeti, M Mahouachi, M Kamoun, N Atti
The aim of this experiment was to study the effect of total replacement of oat hay by rosemary distillation residues (RR) on growth, carcass characteristics and meat quality of Barbarine lambs. A total of 21 lambs were divided into three groups. The control group (C) was offered 600 g of oat hay; the RR87 and RR60 groups received 600 g of pellets containing 87% and 60% of RR, respectively. The CP content was 9% and 14% for RR87 and RR60, respectively. All animals were supplemented by 600 g of concentrate. After 77 days of fattening, lambs were slaughtered...
February 15, 2018: Animal: An International Journal of Animal Bioscience
B Koçer, M Bozkurt, G Ege, A E Tüzün, R Konak, O Olgun
1. The aim of this study was to identify a feeding regimen that encourages good pasture use in slow (SG) and fast (FG) growing broiler genotypes under free-range management. 2. SG and FG birds fed on either an ad libitum (ADB) or a meal feeding (MEF) programme was given free outdoor access with or without fresh alfalfa from d 22 to 72 and from d 22 to 45, respectively. In two consecutive trials, 800 birds of each genotype were included in a factorial design using groups of 40 birds replicated 5 times. 3. Fresh alfalfa consumption did not improve growth performance and meat quality attributes, whereas the feeding regimen had significant implications...
February 12, 2018: British Poultry Science
Q Liu, C Wang, G Guo, W J Huo, S L Zhang, C X Pei, Y L Zhang, H Wang
Branched-chain volatile fatty acids (BCVFA) supplements could promote lactation performance and milk quality by improving ruminal fermentation and milk fatty acid synthesis. This study was conducted to evaluate the effects of BCVFA supplementation on milk performance, ruminal fermentation, nutrient digestibility and mRNA expression of genes related to fatty acid synthesis in mammary gland of dairy cows. A total of 36 multiparous Chinese Holstein cows averaging 606±4.7 kg of BW, 65±5.2 day in milk (DIM) with daily milk production of 30...
February 12, 2018: Animal: An International Journal of Animal Bioscience
Minchul Seo, S K M Azizul Islam, Seong-Su Moon
Hypothalamus is the regulatory center of both appetite and energy balance, and endoplasmic reticulum (ER) stress in the hypothalamus is involved in the pathogenesis of obesity. Recently, inhibition of 11 β hydroxysteroid dehydrogenase type1 (11β-HSD1) was reported to have an anti-obesity effect by reducing fat mass. However, link between the role of 11β-HSD1 in hypothalamus and obesity has yet to be elucidated. In this study, embryonal primary hypothalamic neurons and high fat diet (HFD) fed mice were used to investigate the anorexigenic effects of 11β-HSD1 inhibitors in in vitro and in vivo...
February 8, 2018: Journal of Neuroendocrinology
Leandro Z Agudelo, Duarte M S Ferreira, Igor Cervenka, Galyna Bryzgalova, Shamim Dadvar, Paulo R Jannig, Amanda T Pettersson-Klein, Tadepally Lakshmikanth, Elahu G Sustarsic, Margareta Porsmyr-Palmertz, Jorge C Correia, Manizheh Izadi, Vicente Martínez-Redondo, Per M Ueland, Øivind Midttun, Zachary Gerhart-Hines, Petter Brodin, Teresa Pereira, Per-Olof Berggren, Jorge L Ruas
The role of tryptophan-kynurenine metabolism in psychiatric disease is well established, but remains less explored in peripheral tissues. Exercise training activates kynurenine biotransformation in skeletal muscle, which protects from neuroinflammation and leads to peripheral kynurenic acid accumulation. Here we show that kynurenic acid increases energy utilization by activating G protein-coupled receptor Gpr35, which stimulates lipid metabolism, thermogenic, and anti-inflammatory gene expression in adipose tissue...
February 6, 2018: Cell Metabolism
Rachel B Van Hollebeke, Mary Cushman, Emma F Schlueter, Matthew A Allison
PURPOSE: Skeletal muscle is the largest regulator of glucose metabolism but few population-based studies have examined the associations between muscle and inflammation. We studied the relationships between abdominal muscle area and density with selected adiposity associated inflammatory mediators. METHODS: Nearly 2,000 subjects underwent computed tomography (CT) of the abdomen and had venous fasting blood drawn concomitantly. The CT scans were interrogated for visceral and subcutaneous fat, as well as abdominal lean muscle areas and densities...
February 2, 2018: Medicine and Science in Sports and Exercise
D W Brake, K C Swanson
Many nutritionists adopt feeding strategies designed to increase ruminal starch fermentation because ruminal capacity for starch degradation often exceeds amounts of starch able to be digested in the small intestine of cattle. However, increases in fermentable energy supply are positively correlated with increased instances of metabolic disorders and reductions in DMI, and energy derived by cattle subsequent to fermentation is less than that derived when glucose is intestinally absorbed. Small intestinal starch digestion (SISD) appears to be limited by α-glycohydrolase secretions and a precise understanding of digestion of carbohydrates in the small intestine remains equivocal...
January 27, 2018: Journal of Animal Science
Toru Miyazaki, Tomoko Yamazaki, Ryoichi Sugisawa, M Eric Gershwin, Satoko Arai
Circulating immunoglobulin M (IgM) exists in a pentameric form, possessing a polyreactive nature that responds not only to foreign antigens but also to autoantigens; thus, it is involved in both beneficial and detrimental immune responses, including protection from infection and the progression of autoimmunity. On the other hand, IgM also behaves as a carrier of the apoptosis inhibitor of macrophage (AIM) protein, storing a large amount of the inactivated form of AIM in the blood through this association. Under different disease conditions, AIM can dissociate from IgM locally or systemically to exert its function, inducing the removal of various biological debris such as excess fat, bacteria, cancer cells or dead cell debris...
January 29, 2018: Cellular & Molecular Immunology
Stefania Squadrone, Paola Brizio, Marco Battuello, Nicola Nurra, Rocco Mussat Sartor, Anna Riva, Mariachiara Staiti, Alessandro Benedetto, Daniela Pessani, Maria Cesarina Abete
Seaweeds have been used as animal feed since a long time and are consumed as food in several cultures. In fact, macroalgae are a source of protein, fiber, polyunsaturated fat, and minerals. The concentration of trace elements was determined in dominant macroalga species from three sites of the northwestern Mediterranean Sea. A high interspecies variability was observed, with higher metal levels in brown and green than those in red seaweeds. The maximum values set by European regulations for arsenic, mercury, and cadmium in food and feed were never exceeded, but a few samples were very close to limits set for mercury...
January 24, 2018: Environmental Science and Pollution Research International
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