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https://www.readbyqxmd.com/read/27923808/ucp1-inhibition-in-cidea-overexpressing-mice-is-physiologically-counteracted-by-brown-adipose-tissue-hyperrecruitment
#1
Alexander W Fischer, Irina G Shabalina, Charlotte L Mattsson, Gustavo Abreu-Vieira, Barbara Cannon, Jan Nedergard, Natasa Petrovic
Cidea is a gene highly expressed in thermogenesis-competent (UCP1-containing) adipose cells, both brown and brite/beige. Here we initially demonstrate a remarkable adipose-depot specific regulation of Cidea expression. In classical brown fat, Cidea mRNA is expressed continuously and invariably, irrespective of tissue recruitment. However, Cidea protein levels are regulated posttranscriptionally, being conspicuously induced in the thermogenically recruited state. In contrast, in brite fat, Cidea protein levels are regulated at the transcriptional level, and Cidea mRNA and protein levels are proportional to tissue "briteness"...
December 6, 2016: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27919269/comparison-of-voluntary-food-intake-and-palatability-of-commercial-weight-loss-diets-in-healthy-dogs-and-cats
#2
Marie Anne Hours, Emmanuelle Sagols, Ariane Junien-Castagna, Alexandre Feugier, Delphine Moniot, Ingrid Daniel, Vincent Biourge, Serisier Samuel, Yann Queau, Alexander J German
BACKGROUND: Obesity in dogs and cats is usually managed by dietary energy restriction using a purpose-formulated weight loss diet, but signs of hunger and begging commonly occur causing poor owner compliance. Altering diet characteristics so as to reduce voluntary food intake (VFI) can improve the likelihood of success, although this should not be at the expense of palatability. The aim of the current study was to compare the VFI and palatibility of novel commercially available canine and feline weight loss diets...
December 5, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27916515/oestrogen-and-anti-androgen-therapy-for-transgender-women
#3
REVIEW
Vin Tangpricha, Martin den Heijer
Transgender women experience lifelong gender dysphoria due to a gender assignment at birth that is incongruent with their gender identity. They often seek hormone therapy, with or without surgery, to improve their gender dysphoria and to better align their physical and psychological features with a more feminine gender role. Some of the desired physical changes from oestrogen and anti-androgen therapy include decreased body and facial hair, decreased muscle mass, breast growth, and redistribution of fat. Overall the risks of treatment are low, but include thromboembolism, the risk of which depends on the dose and route of oestrogen administration...
December 1, 2016: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/27908189/thermoacoustic-imaging-of-rabbit-knee-joints
#4
Zihui Chi, Yuan Zhao, Lin Huang, Zhu Zheng, Huabei Jiang
PURPOSE: Knee joint is one of the largest and most complex joints of the body. Knee joint diseases are common, and current clinical imaging technologies such as x-ray computed tomography, magnetic resonance imaging, and ultrasound imaging have limitations in the diagnosis of knee joint diseases. Emerging imaging technologies such as diffuse optical tomography and photoacoustic imaging (PAI) have been applied to the detection of osteoarthritis (OA). However, they are limited to small joints such as the finger and difficult to be used for large joints such as the knee...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27904388/content-of-total-phenolics-flavan-3-ols-and-proanthocyanidins-oxidative-stability-and-antioxidant-capacity-of-chocolate-during-storage
#5
Jovanka Laličić-Petronijević, Draženka Komes, Stanislava Gorjanović, Ana Belščak-Cvitanović, Lato Pezo, Ferenc Pastor, Sanja Ostojić, Jovanka Popov-Raljić, Desanka Sužnjević
Antioxidant (AO) capacity of chocolates with 27, 44 and 75% cocoa was assessed after production and during twelve months of storage by direct current (DC) polarographic assay, based on the decrease of anodic current caused by the formation of hydroxo-perhydroxyl mercury(II) complex (HPMC) in alkaline solutions of hydrogen peroxide at potentials of mercury oxidation, and two spectrophotometric assays. Relative antioxidant capacity index (RACI) was calculated by taking the average value of the AO assay (the sample mass in all assays was identical)...
March 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27903833/meal-distribution-of-dietary-protein-and-leucine-influences-long-term-muscle-mass-and-body-composition-in-adult-rats
#6
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/27902529/perceived-exertion-during-exercise-is-associated-with-children-s-energy-intake
#7
S Nicole Fearnbach, Travis D Masterson, Haley A Schlechter, Eric Loken, Danielle S Downs, David Thivel, Kathleen L Keller
PURPOSE: To examine the individual-level factors that predict energy intake (EI) following imposed exercise (EX) and sedentary time (SED) in children. METHODS: Healthy-weight children ages 9-12 years (n = 20) reported to the laboratory for 1 baseline and 2 experimental visits (EX and SED) each separated by 1 week in a randomized crossover design. Percent body fat, weight (kg), and height (m) were used to calculate fat-mass index (FM index) and fat-free mass index (FFM index; kg/m)...
November 29, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27867499/lessons-on-skeletal-cell-plasticity-from-studying-jawbone-regeneration-in-zebrafish
#8
REVIEW
Sandeep Paul, J Gage Crump
Three major mesenchymal cell types have important roles in determining the shapes of vertebrate animals: bone-producing osteoblasts, cartilage-producing chondrocytes, and fat-producing adipocytes. Although often considered discrete cell types, accumulating evidence is revealing mesenchymal cells of intermediate identities and interconversion of cell types. Such plasticity is particularly evident during adult skeletal repair. In this Review, we highlight recent work in zebrafish showing a role for hybrid cartilage-bone cells in large-scale regeneration of the adult jawbone, as well as their origins in the periosteum...
2016: BoneKEy Reports
https://www.readbyqxmd.com/read/27865490/effect-of-concentrate-supplementation-during-the-dry-period-on-colostrum-quality-and-effect-of-colostrum-feeding-regimen-on-passive-transfer-of-immunity-calf-health-and-performance
#9
A Dunn, A Ashfield, B Earley, M Welsh, A Gordon, M McGee, S J Morrison
The objectives were to evaluate the effect of (1) supplementing concentrates to multiparous Holstein cows during the dry period on colostral and milk immunoglobulin G (IgG) concentration; and (2) feeding calves colostrum at either 5 or 10% of their body weight (BW) on passive transfer of immunity, health, and performance. Holstein multiparous cows (n = 37) were assigned to 1 of 2 nutritional treatments during an 8-wk dry period: (1) offered ad libitum grass silage only (GS) or (2) offered ad libitum access to the same grass silage plus concentrate [total mixed ration in a 75:25 dry matter (DM) ratio], providing a mean concentrate DM intake of 3...
November 16, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27858497/high-fat-diet-and-exercise-lead-to-a-disrupted-and-pathogenic-dna-methylome-in-mouse-liver
#10
Dan Zhou, Ryan A Hlady, Marissa J Schafer, Thomas A White, Chen Liu, Jeong-Hyeon Choi, Jordan D Miller, Lewis R Roberts, Nathan K LeBrasseur, Keith D Robertson
High-fat diet consumption and sedentary life style elevates risk for obesity, non-alcoholic fatty liver disease, and cancer. Exercise training conveys health benefits in populations with or without these chronic conditions. Diet and exercise regulate gene expression by mediating epigenetic mechanisms in many tissues; however, such effects are poorly documented in the liver, a central metabolic organ. To dissect the consequences of diet and exercise on the liver epigenome, we measured DNA methylation, using reduced representation bisulfite sequencing, and transcription, using RNA-seq, in mice maintained on a fast food diet with sedentary lifestyle or exercise, compared to control diet with and without exercise...
November 18, 2016: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/27822503/levels-of-cocaine-and-amphetamine-regulated-transcript-in-vagal-afferents-in-the-mouse-are-unaltered-in-response-to-metabolic-challenges
#11
Xuefeng Yuan, Ying Huang, Sarita Shah, Hua Wu, Laurent Gautron
Cocaine- and amphetamine-regulated transcript (CART) is one of the most abundant neuropeptides in vagal afferents, including those involved in regulating feeding. Recent observations indicate that metabolic challenges dramatically alter the neuropeptidergic profile of CART-producing vagal afferents. Here, using confocal microscopy, we reassessed the distribution and regulation of CART(55-102) immunoreactivity in vagal afferents of the male mouse in response to metabolic challenges, including fasting and high-fat-diet feeding...
September 2016: ENeuro
https://www.readbyqxmd.com/read/27814942/lsd1-makes-fat-colorful
#12
Leon G Straub, Christian Wolfrum
The histone lysine-specific demethylase 1 (LSD1) is a new and important player in the regulation of brown fat identity and function. In a recent Cell Reports article, Duteil et al. show that LSD1 exerts its effects via regulation of specific histone marks as well as through association with co-repressor complexes.
November 1, 2016: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/27814768/impact-of-3t-multiparametric-mri-and-fdg-pet-ct-in-the-evaluation-of-occult-primary-cancer-with-cervical-node-metastasis
#13
Mária Gődény, Zsolt Lengyel, Gábor Polony, Zoltán Takácsi Nagy, Gergely Léránt, Orsolya Zámbó, Éva Remenár, László Tamás, Miklós Kásler
BACKGROUND: This study aimed to determine the ability of multimodal evaluation with multiparametric 3T-MRI (MPMRI) and positron emission tomography - computed tomography (PET/CT) to detect cancer of unknown primary origin (CUP) with neck lymph node (LN) metastasis. METHODS: The study group comprised 38 retrospectively analysed consecutive patients with LN metastasis in the head and neck (HN) region without known primary tumours (PTs). Statistical values of 3T-MRI and of FDG-PET/CT scans were evaluated...
November 4, 2016: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/27809951/molecular-characterization-expression-analysis-and-rnai-knock-down-of-elongation-factor-1%C3%AE-and-1%C3%AE-from-nilaparvata-lugens-and-its-yeast-like-symbiont
#14
W X Wang, T H Zhu, K L Li, L F Chen, F X Lai, Q Fu
In the present paper, four cDNAs encoding the alpha and gamma subunits of elongation factor 1 (EF-1) were cloned and sequenced from Nilaparvata lugens, named NlEF-1α, NlEF-1γ, and its yeast-like symbiont (YLS), named YsEF-1α and YsEF-1γ, respectively. Comparisons with sequences from other species indicated a greater conservation for EF-1α than for EF-1γ. NlEF-1α has two identical copies. The deduced amino acid sequence homology of NlEF-1α and NlEF-1γ is 96 and 64%, respectively, compared with Homalodisca vitripennis and Locusta migratoria...
November 4, 2016: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/27775180/robust-water-fat-separated-dual-echo-mri-by-phase-sensitive-reconstruction
#15
Thobias Romu, Nils Dahlström, Olof Dahlqvist Leinhard, Magnus Borga
PURPOSE: The purpose of this work was to develop and evaluate a robust water-fat separation method for T1-weighted symmetric two-point Dixon data. THEORY AND METHODS: A method for water-fat separation by phase unwrapping of the opposite-phase images by phase-sensitive reconstruction (PSR) is introduced. PSR consists of three steps; (1), identification of clusters of tissue voxels; (2), unwrapping of the phase in each cluster by solving Poisson's equation; and (3), finding the correct sign of each unwrapped opposite-phase cluster, so that the water-fat images are assigned the correct identities...
October 24, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27766585/anatomical-distribution-of-primary-amine-oxidase-activity-in-four-adipose-depots-and-plasma-of-severely-obese-women-with-or-without-a-dysmetabolic-profile
#16
Christian Carpéné, Francisco Les, Mounia Hasnaoui, Simon Biron, Picard Marceau, Denis Richard, Jean Galitzky, Denis R Joanisse, Pascale Mauriège
Semicarbazide-sensitive amine oxidase (SSAO), identical to primary amine oxidase or vascular adhesion protein-1, is a membrane enzyme that generates hydrogen peroxide. SSAO is highly expressed at the adipocyte surface, and its plasma levels increase with type 2 diabetes. Since visceral adipose tissue (AT) is more tightly associated with obesity complications than subcutaneous (SC) abdominal fat, we compared SSAO activity in plasma and 4 distinct AT locations in 48 severely obese women (body mass index (BMI), averaging 54 ± 11 kg/m(2)), with or without a dysmetabolic profile...
October 21, 2016: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/27632924/the-new-total-western-diet-for-rodents-does-not-induce-an-overweight-phenotype-or-alter-parameters-of-metabolic-syndrome-in-mice
#17
Stephany P Monsanto, Korry J Hintze, Robert E Ward, Deanna P Larson, Michael Lefevre, Abby D Benninghoff
In this study, we determined the impact of the total Western diet (TWD) for rodents and its macro- and micronutrient components on weight gain and biomarkers of metabolic function in mice compared to a 45% fat diet-induced obesity (DIO) diet and the standard AIN93G diet. We hypothesized that mice fed the TWD would have increased body fat with indicators of metabolic syndrome similar to mice consuming the DIO diet. As expected, DIO-fed mice acquired a metabolic syndrome phenotype typified by increased energy intake, increased body weight gain, increased fat mass, higher fasting glucose, impaired glucose tolerance, and higher plasma leptin relative to the AIN93G diet...
September 2016: Nutrition Research
https://www.readbyqxmd.com/read/27627572/the-thymus-a-forgotten-but-very-important-organ
#18
REVIEW
Zygmunt Zdrojewicz, Ewelina Pachura, Paulina Pachura
Medical science seems to be on the threshold of a revolution: It seems possible that in twenty years, doctors will be able to replace organs in the human body like parts in a car. This is thanks to the recent achievement of a team from the Medical Research Council Center for Regenerative Medicine in Edinburgh, Scotland - the group of researchers tried to regenerate the thymus gland in mice. The thymus gland is an essential organ for the development of the immune system, but very few people have any idea that it exists...
March 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/27617359/mass-loss-rates-of-fasting-polar-bears
#19
Nicholas W Pilfold, Daryll Hedman, Ian Stirling, Andrew E Derocher, Nicholas J Lunn, Evan Richardson
Polar bears (Ursus maritimus) have adapted to an annual cyclic regime of feeding and fasting, which is extreme in seasonal sea ice regions of the Arctic. As a consequence of climate change, sea ice breakup has become earlier and the duration of the open-water period through which polar bears must rely on fat reserves has increased. To date, there is limited empirical data with which to evaluate the potential energetic capacity of polar bears to withstand longer fasts. We measured the incoming and outgoing mass of inactive polar bears (n = 142) that were temporarily detained by Manitoba Conservation and Water Stewardship during the open-water period near the town of Churchill, Manitoba, Canada, in 2009-2014...
September 2016: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/27613867/peroxisome-proliferator-activated-receptor-%C3%AE-activation-augments-the-%C3%AE-cell-unfolded-protein-response-and-rescues-early-glycemic-deterioration-and-%C3%AE-cell-death-in-non-obese-diabetic-mice
#20
Aarthi V Maganti, Sarah A Tersey, Farooq Syed, Jennifer B Nelson, Stephanie C Colvin, Bernhard Maier, Raghavendra G Mirmira
Type 1 diabetes is an autoimmune disorder that is characterized by a failure of the unfolded protein response in islet β cells with subsequent endoplasmic reticulum stress and cellular death. Thiazolidinediones are insulin sensitizers that activate the nuclear receptor PPAR-γ and have been shown to partially ameliorate autoimmune type 1 diabetes in humans and non-obese diabetic (NOD) mice. We hypothesized that thiazolidinediones reduce β cell stress and death independently of insulin sensitivity. To test this hypothesis, female NOD mice were administered pioglitazone during the pre-diabetic phase and assessed for insulin sensitivity and β cell function relative to controls...
October 21, 2016: Journal of Biological Chemistry
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