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https://www.readbyqxmd.com/read/28723888/association-between-supraclavicular-brown-adipose-tissue-composition-at-birth-and-adiposity-gain-from-birth-to-6-months-age
#1
Sonja Entringer, Jerod Rasmussen, Dan M Cooper, Satoru Ikenoue, Feizal Waffarn, Steven G Potkin, Pathik D Wadhwa, Claudia Buss
BACKGROUND: Brown Adipose Tissue (BAT) is associated with higher energy expenditure and lower adiposity in adults. However, the relationship between BAT composition and adiposity in early life is unknown. The objective of this study was to test the hypothesis that brown fat composition at birth is prospectively associated with adiposity gain during the first six months of postnatal life. METHODS: N=35 healthy infants were followed prospectively from intrauterine life and birth through 6 months age...
July 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28723419/nf-%C3%AE%C2%BAb-p65-serine-467-phosphorylation-sensitizes-mice-to-weight-gain-and-tnf%C3%AE-or-diet-induced-inflammation
#2
Tabea Riedlinger, Marleen B Dommerholt, Tobias Wijshake, Janine K Kruit, Nicolette Huijkman, Daphne Dekker, Mirjam Koster, Niels Kloosterhuis, Debby P Y Koonen, Alain de Bruin, Darren Baker, Marten H Hofker, Jan van Deursen, Johan W Jonker, M Lienhard Schmitz, Bart van de Sluis
The NF-κB family of transcription factors is essential for an effective immune response, but also controls cell metabolism, proliferation and apoptosis. Its broad relevance and the high connectivity to diverse signaling pathways require a tight control of NF-κB activity. To investigate the control of NF-κB activity by phosphorylation of the NF-κB p65 subunit, we generated a knock-in mouse model in which serine 467 (the mouse homolog of human p65 serine 468) was replaced with a non-phosphorylatable alanine (S467A)...
July 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28722217/personal-and-situational-predictors-of-everyday-snacking-an-application-of-temporal-self-regulation-theory
#3
Katherine G Elliston, Stuart G Ferguson, Benjamin Schüz
OBJECTIVES: This study aims at testing predictions derived from temporal self-regulation theory (TST) in relation to discretionary food choices (snacks). TST combines a motivational sphere of influence (cognitions and temporal valuations resulting in intentions) with a momentary sphere (encompassing social and physical environmental cues). This dual approach differs from current health behaviour theories, but can potentially improve our understanding of the interplay of personal and environmental factors in health behaviour self-regulation...
July 19, 2017: British Journal of Health Psychology
https://www.readbyqxmd.com/read/28721492/peristaltic-like-motion-of-the-human-fetal-right-ventricle-and-its-effects-on-fluid-dynamics-and-energy-dynamics
#4
Hadi Wiputra, Guat Ling Lim, Khong Chun Chua, R Nivetha, Sanah Merchant Soomar, Arijit Biwas, Citra Nurfarah Zaini Mattar, Hwa Liang Leo, Choon Hwai Yap
In both adult human and canine, the cardiac right ventricle (RV) is known to exhibit a peristaltic-like motion, where RV sinus (inflow region) contracts first and the infundibulum (outflow region) later, in a wave-like contraction motion. The delay in contraction between the sinus and infundibulum averaged at 15% of the cardiac cycle and was estimated to produce an intra-ventricular pressure difference of 15 mmHg. However, whether such a contractile motion occurs in human fetuses as well, its effects on hemodynamics remains unknown, and are the subject of the current study...
July 18, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28721439/effects-of-insulin-and-exercise-training-on-fgf21-its-receptors-and-target-genes-in-obesity-and-type-2-diabetes
#5
Rikke Kruse, Sara G Vienberg, Birgitte F Vind, Birgitte Andersen, Kurt Højlund
AIMS/HYPOTHESIS: Pharmacological doses of FGF21 improve glucose tolerance, lipid metabolism and energy expenditure in rodents. Induced expression and secretion of FGF21 from muscle may increase browning of white adipose tissue (WAT) in a myokine-like manner. Recent studies have reported that insulin and exercise increase FGF21 in plasma. Obesity and type 2 diabetes are potentially FGF21-resistant states, but to what extent FGF21 responses to insulin and exercise training are preserved, and whether FGF21, its receptors and target genes are altered, remains to be established...
July 18, 2017: Diabetologia
https://www.readbyqxmd.com/read/28720899/p32-heterozygosity-protects-against-age-and-diet-induced-obesity-by-increasing-energy-expenditure
#6
Yong Liu, Patrick L Leslie, Aiwen Jin, Koji Itahana, Lee M Graves, Yanping Zhang
Obesity is increasing in prevalence and has become a global public health problem. The main cause of obesity is a perturbation in energy homeostasis, whereby energy intake exceeds energy expenditure. Although mitochondrial dysfunction has been linked to the deregulation of energy homeostasis, the precise mechanism is poorly understood. Here, we identify mitochondrial p32 (also known as C1QBP) as an important regulator of lipid homeostasis that regulates both aerobic and anaerobic energy metabolism. We show that while whole-body deletion of the p32 results in an embryonic lethal phenotype, mice heterozygous for p32 are resistant to age- and high-fat diet-induced ailments, including obesity, hyperglycemia, and hepatosteatosis...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720757/integrative-analyses-of-translatome-and-transcriptome-reveal-important-translational-controls-in-brown-and-white-adipose-regulated-by-micrornas
#7
David W Reid, Dan Xu, Peng Chen, Hongyuan Yang, Lei Sun
The epidemic of obesity and diabetes has markedly spurred the research interest in adipocyte biology. Brown adipocytes are specialized for energy expenditure and of therapeutic interest for treatment of metabolic diseases, but how brown adipocytes are distinguished from white adipocytes at the level of translational regulation remains poorly understood. To systemically determine the translational control of gene expression in adipose tissue, we performed ribosome profiling and RNA-seq in parallel to depict the translatome and transcriptome changes during primary brown and white adipogenesis, and between brown and white adipose tissue...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720583/central-effects-of-insulin-detemir-on-feeding-body-weight-and-metabolism-in-rats
#8
Joseph R Vasselli, F Xavier Pi-Sunyer, Daniel G Wall, Catherine S John, Colin D Chapman, Paul J Currie
Insulin detemir (DET) is a basal insulin analog that, in contrast to other long-acting forms of insulin, has significant weight-gain sparing effects in diabetic patients. We hypothesized that this effect of DET may be due to its enhanced catabolic action in the CNS. We investigated the long-term effects of single third ventricular (3V) microinjections of equimolar doses of DET and regular insulin in normal male rats on feeding, body weight, energy expenditure (EE) and respiratory quotient (RQ). Also in acute testing, we assessed the ability of lower doses of DET to alter feeding, EE and RQ when microinjected directly into the paraventricular nucleus (PVN)...
July 18, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28719766/energy-expenditure-of-standing-compared-to-sitting-while-conducting-office-tasks
#9
Jill Burns, Cuisle Forde, Sara Dockrell
Objectives This study aimed to investigate the energy expenditure of common office-based tasks. The objectives were to: (a) test the classification of tasks as sedentary or light-intensity physical activity and (b) compare the energy expenditure of tasks under two postural conditions (sitting and standing). Background The sedentary nature of office work has been highlighted as a health risk, and strategies to reduce sedentary behavior at work have been developed. However, there is limited evidence to guide the utilization of sit-stand workstations in the workplace for metabolic health benefits...
July 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28716975/metabolic-phenotype-in-the-mouse-model-of-osteogenesis-imperfecta
#10
Iris Boraschi-Diaz, Josephine T Tauer, Omar El Rifai, Delphine Guillemette, Geneviève Lefebvre, Frank Rauch, Mathieu Ferron, Svetlana V Komarova
Osteogenesis Imperfecta (OI) is the most common heritable bone fragility disorder, usually caused by dominant mutations in genes coding for collagen type I alpha chains, COL1A1 or COL1A2. Osteocalcin is now recognized as a bone-derived regulator of insulin secretion and sensitivity and glucose homeostasis. Since OI is associated with increased rates of bone formation and resorption, we hypothesized that the levels of undercarboxylated osteocalcin are increased in OI. The objective of this study was to determine changes in osteocalcin and to elucidate the metabolic phenotype in the Col1a1Jrt/+ mouse, a model of dominant OI caused by a Col1a1 mutation...
July 17, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28716822/dock2-deficiency-mitigates-high-fat-diet-induced-obesity-by-reducing-adipose-tissue-inflammation-and-increasing-energy-expenditure
#11
Xia Guo, Feifei Li, Zaiyan Xu, Amelia Yin, Hang Yin, Chenxiao Li, Shi-You Chen
Obesity is the major risk factor for type 2 diabetes, cardiovascular disorders, and many other diseases. Adipose tissue inflammation is frequently associated with obesity and contributes to the morbidity and mortality. Dedicator of cytokinesis 2 (DOCK2) is involved in several inflammatory diseases, but its role in obesity remain unknown. To explore the function of DOCK2 in obesity and insulin resistance, wild-type (WT) and DOCK2 deficient (DOCK2-/-) mice were given chow or high-fat diet (HFD) for 12 weeks followed by metabolic, biochemical and histologic analyses...
July 17, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28713582/distance-learning-strategies-for-weight-management-utilizing-online-social-networks-versus-group-phone-conference-call
#12
Erik A Willis, Amanda N Szabo-Reed, Lauren T Ptomey, Felicia L Steger, Jeffery J Honas, Eyad M Al-Hihi, Robert Lee, Jaehoon Lee, Youngha Oh, Richard A Washburn, Joseph E Donnelly
OBJECTIVE: The increase in technology and online social networks (OSNs) may present healthcare providers with an innovative modality for delivering weight management programmes that could have an impact on health care at the population level. The objective of this study was to evaluate the feasibility and efficacy of using an OSN to deliver a weight loss programme to inform future, large-scale trials. METHODS: Seventy individuals (age = 47 ± 12.4, minority = 24...
June 2017: Obesity Science & Practice
https://www.readbyqxmd.com/read/28712531/the-role-of-tryptophan-metabolism-and-food-craving-in-the-relationship-between-obesity-and-bipolar-disorder
#13
N Dalkner, M Platzer, S A Bengesser, A Birner, F T Fellendorf, R Queissner, A Painold, H Mangge, D Fuchs, B Reininghaus, H P Kapfhammer, S J Holasek, E Z Reininghaus
BACKGROUND & AIMS: Individuals with bipolar disorder (BD) have a significantly increased risk of obesity-related conditions. The imbalance between food intake and energy expenditure is assumed to be a major risk factor for obesity in BD. This study analyzed food craving in relation to anthropometric, metabolic, and neurobiological parameters in a well-characterized cohort of euthymic individuals with BD. METHODS: One-hundred-thirty-five patients completed the Food-Craving Inventory assessing four categories of food craving (fat, fast-food, sweets and carbohydrate craving)...
July 4, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28712125/oral-contraceptive-pill-alters-acute-dietary-protein-induced-thermogenesis-in-young-women
#14
Maharani Retna Duhita, Yves Schutz, Jean-Pierre Montani, Abdul G Dulloo, Jennifer L Miles-Chan
OBJECTIVE: There is much interest in the role of dietary protein for weight control. However, there remains a need to characterize individual determinants of the thermogenic effects of protein. This study aimed to investigate the influence of menstrual cycle phase and the combined, monophasic oral contraceptive pill on the thermogenic response to a standardized high-protein (HP) versus normal-protein (NP) meal. METHODS: Following an overnight fast, resting energy expenditure (EE) was measured in 16 healthy young women (8 taking and 8 not taking the pill) and 8 men for 30 minutes pre ingestion and 3 hours post ingestion of a NP (11%) or HP (24%) meal...
July 16, 2017: Obesity
https://www.readbyqxmd.com/read/28707412/differences-in-the-daily-activity-of-patients-with-diabetic-foot-ulcers-compared-to-controls-in-their-free-living-environments
#15
Helen Sheahan, Kimberley Canning, Nishka Refausse, Ewan M Kinnear, Greg Jorgensen, James R Walsh, Peter A Lazzarini
The aims of our study were to investigate multiple daily activity outcomes in patients with diabetic foot ulcers (DFU) compared to diabetic peripheral neuropathy (DPN) and diabetes (DM) controls in their free-living environments. We examined daily activity outcomes of 30 patients with DFU, 23 DPN and 20 DM. All patients wore a validated multi-sensor device for > 5 days (>22 hours per day) to measure their daily activity outcomes: steps, energy expenditure (kJ), average metabolic equivalent tasks (METs), physical activity (>3·0 METs) duration and energy expenditure, lying duration, sleep duration and sleep quality...
July 13, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28707153/medium-chain-enriched-diacylglycerol-mce-dag-oil-decreases-body-fat-mass-in-mice-by-increasing-lipolysis-and-thermogenesis-in-adipose-tissue
#16
Haeun Kim, Jee-Hwan Choe, Jong Hun Choi, Hun Jung Kim, Soo Hyun Park, Moon Won Lee, Wooki Kim, Gwang-Woong Go
Medium chain fatty acid (MCFA) escapes the formation of chylomicrons in the small intestine, resulting in energy expenditure through beta-oxidation. Diacylglycerol (DAG) is susceptible to oxidation rather than being stored in the adipose tissue. This study was conducted to verify the effect of MCE-DAG oil on body fat mass in vivo. Male C57BL/6 mice were randomly assigned to four groups (n = 12) as follows: (1) normal diet (18% kcal from fat), (2) canola oil as a control (40% kcal from canola oil), (3) MCE-DAG10 (10% kcal from MCE-DAG + 30% kcal from canola oil), and (4) MCE-DAG20 (20% kcal from MCE-DAG + 20% kcal from canola oil)...
July 13, 2017: Lipids
https://www.readbyqxmd.com/read/28702901/implications-of-impaired-endurance-peffects-of-endurance-training-orformance-following-single-bouts-of-resistance-training-an-alternate-concurrent-training-perspective
#17
REVIEW
Kenji Doma, Glen B Deakin, David J Bentley
A single bout of resistance training induces residual fatigue, which may impair performance during subsequent endurance training if inadequate recovery is allowed. From a concurrent training standpoint, such carry-over effects of fatigue from a resistance training session may impair the quality of a subsequent endurance training session for several hours to days with inadequate recovery. The proposed mechanisms of this phenomenon include: (1) impaired neural recruitment patterns; (2) reduced movement efficiency due to alteration in kinematics during endurance exercise and increased energy expenditure; (3) increased muscle soreness; and (4) reduced muscle glycogen...
July 12, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28702809/beta2-adrenergic-stimulation-increases-energy-expenditure-at-rest-but-not-during-submaximal-exercise-in-active-overweight-men
#18
Johan Onslev, Glenn Jacobson, Christian Narkowicz, Vibeke Backer, Anders Kalsen, Michael Kreiberg, Søren Jessen, Jens Bangsbo, Morten Hostrup
PURPOSE: β2-Agonists have been proposed as weight-loss treatment, because they elevate energy expenditure. However, it is unknown what effect β2-agonists have on energy expenditure in overweight individuals. Furthermore, the influence of β2-agonist R- and S-enantiomer ratio for the increased energy expenditure is insufficiently explored. METHODS: Nineteen males were included in the study of which 14 completed. Subjects were 31.6 (±3.5) years [mean (±95% CI)] and had a fat percentage of 22...
July 12, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28702330/neonatal-glp1r-activation-limits-adult-adiposity-by-durably-altering-hypothalamic-architecture
#19
Andrea V Rozo, Daniella A Babu, PoMan A Suen, David N Groff, Randy J Seeley, Rebecca A Simmons, Patrick Seale, Rexford S Ahima, Doris A Stoffers
OBJECTIVE: Adult obesity risk is influenced by alterations to fetal and neonatal environments. Modifying neonatal gut or neurohormone signaling pathways can have negative metabolic consequences in adulthood. Here we characterize the effect of neonatal activation of glucagon like peptide-1 (GLP-1) receptor (GLP1R) signaling on adult adiposity and metabolism. METHODS: Wild type C57BL/6 mice were injected with 1 nmol/kg Exendin-4 (Ex-4), a GLP1R agonist, for 6 consecutive days after birth...
July 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28702329/metformin-causes-a-futile-intestinal-hepatic-cycle-which-increases-energy-expenditure-and-slows-down-development-of-a-type-2-diabetes-like-state
#20
Philipp Schommers, Anna Thurau, Insa Bultmann-Mellin, Maria Guschlbauer, Andreas R Klatt, Jan Rozman, Martin Klingenspor, Martin Hrabe de Angelis, Jens Alber, Dirk Gründemann, Anja Sterner-Kock, Rudolf J Wiesner
OBJECTIVE: Metformin, the first line drug for treatment of type 2 diabetes, suppresses hepatic gluconeogenesis and reduces body weight in patients, the latter by an unknown mechanism. METHODS: Mice on a high fat diet were continuously fed metformin in a therapeutically relevant dose, mimicking a retarded formulation. RESULTS: Feeding metformin in pharmacologically relevant doses to mice on a high fat diet normalized HbA1c levels and ameliorated glucose tolerance, as expected, but also considerably slowed down weight gain...
July 2017: Molecular Metabolism
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