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https://www.readbyqxmd.com/read/27932592/the-role-of-adipose-tissue-in-cancer-associated-cachexia
#1
Janina A Vaitkus, Francesco S Celi
Adipose tissue (fat) is a heterogeneous organ, both in function and histology, distributed throughout the body. White adipose tissue, responsible for energy storage and more recently found to have endocrine and inflammation-modulatory activities, was historically thought to be the only type of fat present in adult humans. The recent demonstration of functional brown adipose tissue in adults, which is highly metabolic, shifted this paradigm. Additionally, recent studies demonstrate the ability of white adipose tissue to be induced toward the brown adipose phenotype - "beige" or "brite" adipose tissue - in a process referred to as "browning...
December 8, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27929670/physical-activity-and-changes-in-adiposity-in-the-transition-from-elementary-to-middle-school
#2
Marsha Dowda, Sharon E Taverno Ross, Kerry L McIver, Rodney K Dishman, Russell R Pate
OBJECTIVES: This study examined the longitudinal associations of objectively measured physical activity, sedentary behavior, and diet quality with two measures of adiposity and a measure of weight status. METHODS: A total of 658 children from 21 elementary schools (45.1% boys; 40% white, 33% black, 9% Hispanic, and 18% other race/ethnicity) were assessed at least twice in fifth, sixth, and/or seventh grade. Fat mass index (FMI), percent body fat (PBF), and BMI were calculated from body weight, standing and seated heights, and bioelectrical impedance (BIA) measured each year...
December 8, 2016: Childhood Obesity
https://www.readbyqxmd.com/read/27926859/rapamycin-reverses-metabolic-deficits-in-lamin-a-c-deficient-mice
#3
Chen-Yu Liao, Sydney S Anderson, Nicole H Chicoine, Jarrott R Mayfield, Emmeline C Academia, Joy A Wilson, Chalermkwan Pongkietisak, Morgan A Thompson, Earl P Lagmay, Delana M Miller, Yueh-Mei Hsu, Mark A McCormick, Monique N O'Leary, Brian K Kennedy
The role of the mTOR inhibitor, rapamycin, in regulation of adiposity remains controversial. Here, we evaluate mTOR signaling in lipid metabolism in adipose tissues of Lmna(-/-) mice, a mouse model for dilated cardiomyopathy and muscular dystrophy. Lifespan extension by rapamycin is associated with increased body weight and fat content, two phenotypes we link to suppression of elevated energy expenditure. In both white and brown adipose tissue of Lmna(-/-) mice, we find that rapamycin inhibits mTORC1 but not mTORC2, leading to suppression of elevated lipolysis and restoration of thermogenic protein UCP1 levels, respectively...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27923458/micrornas-in-adipocyte-formation-and-obesity
#4
REVIEW
Marcel Scheideler
The worldwide epidemic of obesity demands novel and more effective therapeutic approaches. Fat cells are at the core of energy metabolism trying either to cope with a positive energy balance by hypertrophy and hyperplasia of energy storing white adipocytes or to counteract obesity by the induction of non-shivering thermogenesis in energy combusting brite/brown adipocytes. However, the comprehensive regulatory network of adipocyte formation remains to be elucidated. MicroRNAs are an emerging class of important regulatory determinants in many biological processes and diseases, including adipocyte formation and obesity...
October 2016: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/27921350/effects-of-the-standardized-ileal-digestible-valine%C3%A2-%C3%A2-lysine-ratio-on-performance-milk-composition-and-plasma-indices-of-lactating-sows
#5
Yetong Xu, Zhikai Zeng, Xiao Xu, Qiyu Tian, Xiaokang Ma, Shenfei Long, Meijing Piao, Zhibin Cheng, Xiangshu Piao
To determine the effects of standardized ileal digestible (SID) valine : lysine ratio on the performance, milk composition and plasma indices of lactating sows, 32 Large White × Landrace sows (219.78 ± 7.15 kg body weight; parity 1.82 ± 0.62) were allotted to one of four dietary treatments with eight sows per treatment based on parity, back fat thickness and body weight. The sows were fed corn-soybean meal-based diets containing 63, 83, 103 or 123% SID valine : lysine from day 107 of gestation until day 28 of lactation...
December 5, 2016: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/27917847/poultry-products-enriched-with-nutricines-have-beneficial-effects-on-human-health
#6
Gordana Kralik, Zlata Kralik
The paper presents nutritive value of broiler meat and table eggs, as these animal products are used for human nutrition on a daily basis. In the Republic of Croatia, average consumption of poultry meat amounts to 18.3 kg and to 160 eggs per capita.The most quality parts of broiler carcass are breasts and drumsticks with thighs. Breast muscles contain 21-23% protein, 1.90-1.97% fat, 75.28-76.01% water and 0.74-0.77% collagen. Thigh muscles contain 4.70-6.05% fat, 19.03-19.93% protein and 0.91-1.13% collagen...
February 1, 2017: Medicinski Glasnik
https://www.readbyqxmd.com/read/27917316/quantitative-analysis-of-rat-adipose-tissue-cell-recovery-and-non-fat-cell-volume-in-primary-cell-cultures
#7
Floriana Rotondo, María Del Mar Romero, Ana Cecilia Ho-Palma, Xavier Remesar, José Antonio Fernández-López, Marià Alemany
BACKGROUND: White adipose tissue (WAT) is a complex, diffuse, multifunctional organ which contains adipocytes, and a large proportion of fat, but also other cell types, active in defense, regeneration and signalling functions. Studies with adipocytes often require their isolation from WAT by breaking up the matrix of collagen fibres; however, it is unclear to what extent adipocyte number in primary cultures correlates with their number in intact WAT, since recovery and viability are often unknown...
2016: PeerJ
https://www.readbyqxmd.com/read/27916986/pharmacological-modulation-of-lmna-srsf1-dependent-splicing-abrogates-diet-induced-obesity-in-mice
#8
J Santo, C Lopez-Herrera, C Apolit, Y Bareche, L Lapasset, C Chavey, S Capozi, F Mahuteau, R Najman, P Fornarelli, I C Lopez-Mejía, G Béranger, F Casas, E-Z Amri, B Pau, D Scherrer, J Tazi
BAKGROUND/OBJECTIVES: Intense drug discovery efforts in the metabolic field highlight the need for novel strategies for the treatment of obesity. Alternative splicing (AS) and/or polyadenylation enable the LMNA gene to express distinct protein isoforms that exert opposing effects on energy metabolism and lifespan. Here we aimed to use the splicing factor SRSF1 that contribute to the production of these different isoforms as a target to uncover new anti-obesity drug. SUBJECTS/METHODS: Small molecules modulating SR protein activity and splicing, were tested for their abilities to interact with SRSF1 and to modulate LMNA (AS)...
December 5, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27913603/the-tumor-suppressor-flcn-mediates-an-alternate-mtor-pathway-to-regulate-browning-of-adipose-tissue
#9
Shogo Wada, Michael Neinast, Cholsoon Jang, Yasir H Ibrahim, Gina Lee, Apoorva Babu, Jian Li, Atsushi Hoshino, Glenn C Rowe, James Rhee, José A Martina, Rosa Puertollano, John Blenis, Michael Morley, Joseph A Baur, Patrick Seale, Zoltan Arany
Noncanonical mechanistic target of rapamycin (mTOR) pathways remain poorly understood. Mutations in the tumor suppressor folliculin (FLCN) cause Birt-Hogg-Dubé syndrome, a hamartomatous disease marked by mitochondria-rich kidney tumors. FLCN functionally interacts with mTOR and is expressed in most tissues, but its role in fat has not been explored. We show here that FLCN regulates adipose tissue browning via mTOR and the transcription factor TFE3. Adipose-specific deletion of FLCN relieves mTOR-dependent cytoplasmic retention of TFE3, leading to direct induction of the PGC-1 transcriptional coactivators, drivers of mitochondrial biogenesis and the browning program...
December 2, 2016: Genes & Development
https://www.readbyqxmd.com/read/27913573/thyroid-hormones-induce-browning-of-white-fat
#10
Noelia Martinez, José María Moreno-Navarrete, Cristina Contreras, Eva Rial-Pensado, Johan Fernø, Rubén Nogueiras, Carlos Diéguez, José M Fernández-Real, Miguel López
The canonical view about the effect of thyroid hormones (THs) on thermogenesis assumes that the hypothalamus acts merely as a modulator of the sympathetic outflow on brown adipose tissue (BAT). Recent data have challenged that vision by demonstrating that THs act on the ventromedial nucleus of the hypothalamus (VMH) to inhibit AMP-activated protein kinase (AMPK), which regulates the thermogenic program in BAT, leading to increased thermogenesis and weight loss. Current data have shown that in addition to activation of brown fat, the browning of white adipose tissue (WAT) might be also an important thermogenic mechanism...
December 2, 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27911598/type-3-deiodinase-role-on-central-thyroid-hormone-action-affects-the-leptin-melanocortin-system-and-circadian-activity
#11
Zhaofei Wu, M Elena Martinez, Donald L St Germain, Arturo Hernandez
The role of thyroid hormones (TH) in the central regulation of energy balance is increasingly appreciated. Mice lacking the type 3 deiodinase (DIO3), which inactivates TH, have decreased circulating TH levels relative to control mice due to defects in the hypothalamic-pituitary-thyroid axis. However, we have shown that the TH status of the adult Dio3(-/-) brain is opposite that of the serum, exhibiting enhanced levels of TH action. Since the brain, specially the hypothalamus, harbors important circuitries that regulate metabolism, we aimed to examine the energy balance phenotype of Dio3(-/-) mice and determine whether it is associated with hypothalamic abnormalities...
December 2, 2016: Endocrinology
https://www.readbyqxmd.com/read/27910786/bioavailability-and-digestibility-of-nutrients-from-the-dried-oyster-culinary-medicinal-mushroom-pleurotus-ostreatus-agaricomycetes-in-vivo-experiments
#12
Julita Regula, Joanna Suliburska, Marek Siwulski
There is a limited number of publications on the bioavailability and digestibility of nutrients contained in macrofungi. The aim of this study was to assess the bioavailability and digestibility of macronutrients using in vivo experiments on laboratory animals. The experiments were conducted with the commercial oyster mushroom Pleurotus ostreatus. Semisynthetic diets were prepared based on the modified AIN-93M diet and were supplemented with 4% and 8% mushroom powder. Between days 4 and 13, apparent digestibility indexes were determined for all animals using the conventional balance method...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27910138/canine-and-feline-colostrum
#13
S Chastant-Maillard, C Aggouni, A Albaret, A Fournier, H Mila
Puppy and kitten survival over the first weeks is particularly dependent on colostrum, a specific secretion of the mammary gland produced during the first 2 days post-partum. Colostrum is a source of nutrients and immunoglobulins. It also contributes to the digestive tract maturation. Colostrum differentiates from milk mainly based on its concentration in immunoglobulins G: 20-30 g/L in dog colostrum, 40-50 g/L in cats' vs <1 g/L in milk. IgG concentration rapidly drops after parturition (-50% in 24 hr)...
November 30, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27909908/obesity-and-liver-cancer
#14
Krasimira Aleksandrova, Marta Stelmach-Mardas, Sabrina Schlesinger
Obesity and related metabolic disorders have become globally prevalent posing a challenge for the chronically damaged liver and predisposing the development and progression of cancer. The rising phenomenon of "obesity epidemic" may provide means for understanding why liver cancer is one of the few malignancies with rising incidence in developed countries over the last decades. Non-alcoholic fatty liver disease associated with obesity, insulin resistance, and type 2 diabetes is an increasingly recognized trigger for liver cancer in Western populations characterized by low prevalence of established risk factors for liver cancer such as viral hepatitis and hepatotoxin exposure...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27906582/fiat-deletion-increases-bone-mass-but-does-not-prevent-high-fat-diet-induced-metabolic-complications
#15
Bahareh Hekmatnejad, Vionnie W C Yu, William Addison, Vice Mandic, Martin Pellicelli, Alice Arabian, René St-Arnaud
FIAT (Factor Inhibiting ATF4-mediated Transcription) interacts with ATF4 to repress its transcriptional activity. We performed a phenotypic analysis of Fiat-deficient male mice (Fiat(-/Y)) at 8 and 16 weeks of age. Fiat(-/Y) mice appeared normal at birth and weight gain was comparable between genotypes. μCT analysis of proximal femur demonstrated 46% and 13% age-dependent increases in trabecular bone volume and thickness, respectively, in Fiat(-/Y) mice. Cortical bone measurements at the femoral midshaft revealed a significant increase in cortical thickness in older Fiat(-/Y) mice...
December 1, 2016: Endocrinology
https://www.readbyqxmd.com/read/27903833/meal-distribution-of-dietary-protein-and-leucine-influences-long-term-muscle-mass-and-body-composition-in-adult-rats
#16
Layne E Norton, Gabriel J Wilson, Christopher J Moulton, Donald K Layman
BACKGROUND: Protein quantity and quality at a meal affect muscle protein synthesis (MPS); however, long-term effects of protein distribution at individual meals on adult muscle mass remain unknown. OBJECTIVE: We used a precise feeding protocol in adult rats to determine if optimizing postmeal MPS response by modifying the meal distribution of protein, and the amino acid leucine (Leu), would affect muscle mass. METHODS: Two studies were conducted with the use of male Sprague-Dawley rats (∼300 g) trained to consume 3 meals/d, then assigned to diet treatments with identical macronutrient contents (16% of energy from protein, 54% from carbohydrates, and 30% from fat) but differing in protein quality or meal distribution...
November 30, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27902956/usefulness-of-cervical-computed-tomography-and-magnetic-resonance-imaging-for-rapid-diagnosis-of-crowned-dens-syndrome-a-case-report-and-review-of-the-literature
#17
Akihiro Inoue, Kanehisa Kohno, Satoko Ninomiya, Hitomi Tomita, Shinji Iwata, Shiro Ohue, Kenji Kamogawa, Kensho Okamoto, Shinya Fukumoto, Haruhisa Ichikawa, Shinji Onoue, Saya Ozaki, Bungo Okuda
INTRODUCTION: Crowned dens syndrome is a rare disease entity which radiologically shows calcification of the cruciform ligament around the odontoid process. We report a patient with crowned dens syndrome who improved dramatically in 5days following treatment with oral nonsteroidal anti-inflammatory medication. PRESENTATION OF CASE: A 61-year-old man was admitted to our hospital with a severe occipital headache and sudden onset of neck stiffness. Neurological examination on admission revealed a high fever and cervical rigidity...
November 23, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27901039/early-factors-related-to-carbohydrate-and-fat-intake-at-8-and-12-months-results-from-the-eden-mother-child-cohort
#18
W L Yuan, S Nicklaus, S Lioret, C Lange, A Forhan, B Heude, M-A Charles, B de Lauzon-Guillain
BACKGROUND/OBJECTIVES: Few studies have examined the factors explaining the variability in fat and carbohydrate intake during infancy. We aimed to describe infants' fat and carbohydrate intake and analyse the associations with infant and maternal characteristics and feeding practices. SUBJECTS/METHODS: This study included 1275 infants aged 8 months from the French EDEN mother-child cohort. Carbohydrate intake, fat intake, added fat (vegetable oils and animal fats) and added sugar (honey, white sugar, brown sugar, jam and sweetened beverages) consumption were calculated at 8 and 12 months...
November 30, 2016: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27900262/impaired-histone-deacetylases-5-and-6-expression-mimics-the-effects-of-obesity-and-hypoxia-on-adipocyte-function
#19
Julien Bricambert, Dimitri Favre, Saška Brajkovic, Amélie Bonnefond, Raphael Boutry, Roberto Salvi, Valérie Plaisance, Mohamed Chikri, Giulia Chinetti-Gbaguidi, Bart Staels, Vittorio Giusti, Robert Caiazzo, François Pattou, Gérard Waeber, Philippe Froguel, Amar Abderrahmani
OBJECTIVE: The goal of the study was to investigate the role of histone deacetylases (HDACs) in adipocyte function associated with obesity and hypoxia. METHODS: Total proteins and RNA were prepared from human visceral adipose tissues (VAT) of human obese and normal weight subjects and from white adipose tissue (WAT) of C57Bl6-Rj mice fed a normal or high fat diet (HFD) for 16 weeks. HDAC activity was measured by colorimetric assay whereas the gene and protein expression were monitored by real-time PCR and by western blotting, respectively...
December 2016: Molecular Metabolism
https://www.readbyqxmd.com/read/27900258/adipocyte-specific-hypoxia-inducible-gene-2-promotes-fat-deposition-and-diet-induced-insulin-resistance
#20
Marina T DiStefano, Rachel J Roth Flach, Ozlem Senol-Cosar, Laura V Danai, Joseph V Virbasius, Sarah M Nicoloro, Juerg Straubhaar, Sezin Dagdeviren, Martin Wabitsch, Olga T Gupta, Jason K Kim, Michael P Czech
OBJECTIVE: Adipose tissue relies on lipid droplet (LD) proteins in its role as a lipid-storing endocrine organ that controls whole body metabolism. Hypoxia-inducible Gene 2 (Hig2) is a recently identified LD-associated protein in hepatocytes that promotes hepatic lipid storage, but its role in the adipocyte had not been investigated. Here we tested the hypothesis that Hig2 localization to LDs in adipocytes promotes adipose tissue lipid deposition and systemic glucose homeostasis. METHOD: White and brown adipocyte-deficient (Hig2(fl/fl) × Adiponection cre+) and selective brown/beige adipocyte-deficient (Hig2(fl/fl) × Ucp1 cre+) mice were generated to investigate the role of Hig2 in adipose depots...
December 2016: Molecular Metabolism
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