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https://www.readbyqxmd.com/read/28632997/epidemiology-of-obesity-and-pharmacologic-treatment-options
#1
Vignesh Shettar, Sarang Patel, Srividya Kidambi
Prevalence of obesity and its related morbidity have increased to alarming levels in adults and children in the United States and globally. Weight loss results in improvement of much of the obesity-related morbidity. Lifestyle changes such as dietary modifications, increased physical activity, and behavioral therapy form the crux of weight management. However, many individuals need additional assistance (pharmacologic or surgical) to initiate or sustain weight loss. Pharmacologic therapy consists of a number of agents that work by decreasing appetite, gastric emptying, or nutrient absorption or by increasing satiety...
June 1, 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28629513/erythropoietin-and-hypothalamic-pituitary-axis
#2
Soumyadeep Dey, Constance T Noguchi
Erythropoietin (EPO), known primarily for its erythropoietic activity, is commonly used clinically to treat anemia of chronic kidney disease. However, the expression of EPO receptor (EpoR) beyond erythroid tissue provides for potential extrahematopoietic effects of EPO, including EPO regulation of metabolic homeostasis (Zhang et al., 2014). Small clinical studies have shown that EPO treatment in patients with end-stage renal disease improved glycemic control and insulin sensitivity. Studies in animal models have shown that EPO regulation of metabolism is mainly attributed to its response in fat, and the hypothalamus-pituitary axis (Dey et al...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28628102/regulation-of-body-weight-and-energy-homeostasis-by-neuronal-cell-adhesion-molecule-1
#3
Thomas Rathjen, Xin Yan, Natalia L Kononenko, Min-Chi Ku, Kun Song, Leiron Ferrarese, Valentina Tarallo, Dmytro Puchkov, Gaga Kochlamazashvili, Sebastian Brachs, Luis Varela, Klara Szigeti-Buck, Chun-Xia Yi, Sonja C Schriever, Sudhir Gopal Tattikota, Anne Sophie Carlo, Mirko Moroni, Jan Siemens, Arnd Heuser, Louise van der Weyden, Andreas L Birkenfeld, Thoralf Niendorf, James F A Poulet, Tamas L Horvath, Matthias H Tschöp, Matthias Heinig, Mirko Trajkovski, Volker Haucke, Matthew N Poy
Susceptibility to obesity is linked to genes regulating neurotransmission, pancreatic beta-cell function and energy homeostasis. Genome-wide association studies have identified associations between body mass index and two loci near cell adhesion molecule 1 (CADM1) and cell adhesion molecule 2 (CADM2), which encode membrane proteins that mediate synaptic assembly. We found that these respective risk variants associate with increased CADM1 and CADM2 expression in the hypothalamus of human subjects. Expression of both genes was elevated in obese mice, and induction of Cadm1 in excitatory neurons facilitated weight gain while exacerbating energy expenditure...
June 19, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28624805/rcan2-and-estradiol-independently-regulate-body-weight-in-female-mice
#4
Ling-Cui Ding, Qian-Qian Gong, Shi-Wei Li, Xiao-Long Fu, Ye-Cheng Jin, Jian Zhang, Jian-Gang Gao, Xiao-Yang Sun
Rcan2 increases food intake and plays an important role in the development of age- and diet- induced obesity in male mice. However, in females, wild-type mice grow almost at a similar rate as Rcan2-/- mice on normal chow diet from 6 weeks of age. Here we showed that the ability of Rcan2 to promote weight gain was attenuated by energy expenditure mediated by 17β-estradiol in female mice. Using ovariectomy-operated models, we found that 17β-estradiol deprivation did not alter food intake, but induced more weight gain in wild-type mice than Rcan2-/- mice...
May 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28623186/assessment-of-active-video-gaming-using-adapted-controllers-by-individuals-with-physical-disabilities-a-protocol
#5
Laurie A Malone, Sangeetha Padalabalanarayanan, Justin McCroskey, Mohanraj Thirumalai
BACKGROUND: Individuals with disabilities are typically more sedentary and less fit compared to their peers without disabilities. Furthermore, engaging in physical activity can be extremely challenging due to physical impairments associated with disability and fewer opportunities to participate. One option for increasing physical activity is playing active video games (AVG), a category of video games that requires much more body movement for successful play than conventional push-button or joystick actions...
June 16, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28623168/access-to-nicotine-in-drinking-water-reduces-weight-gain-without-changing-caloric-intake-on-high-fat-diet-in-male-c57bl-6j-mice
#6
Cali A Calarco, Somin Lee, Marina R Picciotto
Nicotine and tobacco use is associated with lower body weight, and many smokers report concerns about weight. In animal studies, nicotine reduces weight gain, reduces food consumption, and alters energy expenditure, but these effects vary with duration and route of nicotine administration. Previous studies have used standardized nicotine doses, however, in this study, male and female mice had free access to nicotine drinking water for 30 days while fed either a high fat diet (HFD) or chow, allowing animals to titrate their nicotine intake...
June 13, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28620484/the-effect-of-changing-the-moisture-levels-of-dry-extruded-and-wet-canned-diets-on-physical-activity-in-cats
#7
D G Thomas, M Post, G Bosch
Obesity levels in cats are increasing and the main causative factor is higher energy intake v. energy expenditure over time. Therefore, altering energy expenditure by enhancing physical activity of the cat could be a strategy to reduce obesity. Hydrating commercial dry diets with water increased activity in cats; however, no study has compared this approach with feeding high-moisture canned diets. Eight healthy male neutered domestic shorthair cats were fed four different dietary treatments in a Latin square design...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28620480/reduction-of-hba1c-levels-by-fucoxanthin-enriched-akamoku-oil-possibly-involves-the-thrifty-allele-of-uncoupling-protein-1-ucp1-a-randomised-controlled-trial-in-normal-weight-and-obese-japanese-adults
#8
Nana Mikami, Masashi Hosokawa, Kazuo Miyashita, Hitoshi Sohma, Yoichi M Ito, Yasuo Kokai
Lifestyle-related problems are becoming a major health threat in East Asian countries. Therefore, finding an efficacious nutraceutical for this population is important. One candidate is fucoxanthin (Fx), a carotenoid abundantly found in edible brown seaweed that has been associated with a number of valuable health-promoting benefits. Unfortunately, clinical studies of Fx are limited. In the present study, we aimed to evaluate the effects of Fx on obesity-related parameters in Japanese subjects harbouring an SNP associated with lifestyle-related problems...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28616366/increased-energy-cost-of-mobility-in-chronic-stroke
#9
Monica C Serra, Margarita S Treuth, Charlene E Hafer-Macko, Alice S Ryan
The purpose of this study was to compare the energy cost of completing mobility-related activities in chronic stroke to the estimated energy cost found in the compendium of physical activities, a resource that estimates and classifies energy cost of various human physical activities. Men (n=18) and women (n=10) with chronic hemiparetic gait (stroke latency: 4 ± 2 years, age: 60.4 ± 1.6 years, BMI: 31.5 ± 1.1 kg/m(2)) participated in the study. Portable energy cost monitoring (COSMED K4b2) was performed during five mobility activities of varying intensity to determine metabolic equivalents (METs, or oxygen consumption in multiples of resting level) for each activity...
December 2016: Journal of Gerontology & Geriatric Research
https://www.readbyqxmd.com/read/28614708/thyroid-hormone-receptor-beta-in-the-ventromedial-hypothalamus-is-essential-for-the-physiological-regulation-of-food-intake-and-body-weight
#10
Saira Hameed, Michael Patterson, Waljit S Dhillo, Sofia A Rahman, Yue Ma, Christopher Holton, Apostolos Gogakos, Giles S H Yeo, Brian Y H Lam, Joseph Polex-Wolf, Wiebke Fenske, Jimmy Bell, Jelena Anastasovska, Jacques Samarut, Stephen R Bloom, J H Duncan Bassett, Graham R Williams, James V Gardiner
The obesity epidemic is a significant global health issue. Improved understanding of the mechanisms that regulate appetite and body weight will provide the rationale for the design of anti-obesity therapies. Thyroid hormones play a key role in metabolic homeostasis through their interaction with thyroid hormone receptors (TRs), which function as ligand-inducible transcription factors. The TR-beta isoform (TRβ) is expressed in the ventromedial hypothalamus (VMH), a brain area important for control of energy homeostasis...
June 13, 2017: Cell Reports
https://www.readbyqxmd.com/read/28612960/physical-activity-and-asthma-control-level-in-children-and-adolescents
#11
Natasha Y Matsunaga, Marina S Oliveira, André M Morcillo, José D Ribeiro, Maria A G O Ribeiro, Adyléia A D C Toro
BACKGROUND AND OBJECTIVE: Physical activity is defined as any bodily movement produced by a muscle contraction with increased energy expenditure. The aim of this study was to assess the physical activity, asthma control level, spirometric measurements and quality of life in children and adolescents with asthma. METHODS: We included all children and adolescents aged 7-17 years who had a diagnosis of atopic asthma and who attended the Pediatric Pulmonology Outpatient Clinic of the State University of Campinas, Brazil...
June 14, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28611675/cardiac-autonomic-responses-during-exercise-and-post-exercise-recovery-using-heart-rate-variability-and-systolic-time-intervals-a-review
#12
REVIEW
Scott Michael, Kenneth S Graham, Glen M Davis
Cardiac parasympathetic activity may be non-invasively investigated using heart rate variability (HRV), although HRV is not widely accepted to reflect sympathetic activity. Instead, cardiac sympathetic activity may be investigated using systolic time intervals (STI), such as the pre-ejection period. Although these autonomic indices are typically measured during rest, the "reactivity hypothesis" suggests that investigating responses to a stressor (e.g., exercise) may be a valuable monitoring approach in clinical and high-performance settings...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28609591/obesity-and-weight-management-at-menopause
#13
Joseph Proietto
BACKGROUND: Many women report gaining weight as they transition through menopause. For most, the weight gain is modest and can be reduced with a conscious effort to limit energy intake and increase energy expenditure. However, many women who are already overweight and obese will gain more weight as they approach menopause. OBJECTIVE: The aims of this paper are to explain the reasons for menopausal weight gain and to detail a method for achieving and sustaining a substantial weight loss...
June 2017: Australian Family Physician
https://www.readbyqxmd.com/read/28606897/melatonin-attenuates-phenotypic-flexibility-of-energy-metabolism-in-a-photoresponsive-mammal-the-siberian-hamster
#14
Jan S Boratyński, Małgorzata Jefimow, Michał S Wojciechowski
The duration of melatonin (MEL) secretion conveys information about day length and initiates a cascade of seasonal phenotypic adjustments in photoresponsive mammals. With shortening days they cease reproduction, minimize energy expenditure, enhance thermoregulatory capacity and adjust functioning of the hypothalamic-pituitary-adrenal (HPA) axis to match the winter increase in energy demands. Within each season stress plays an important role in the flexible adjustments of a phenotype to environmental perturbations...
June 12, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28604591/influence-of-hot-and-cold-environments-on-the-regulation-of-energy-balance-following-a-single-exercise-session-a-mini-review
#15
REVIEW
Keyne Charlot, Cécile Faure, Sophie Antoine-Jonville
Understanding the regulation of human food intake in response to an acute exercise session is of importance for interventions with athletes and soldiers, as well as overweight individuals. However, the influence of hot and cold environments on this crucial function for the regulation of body mass and motor performance has not been summarized. The purpose of this review was to exhaustively search the literature on the effect of ambient temperature during an exercise session on the subsequent subjective feeling of appetite, energy intake (EI) and its regulation...
June 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28603178/role-of-adipokines-in-cardiovascular-disease
#16
Wayne Bond Lau, Koji Ohashi, Yajing Wang, Hayato Ogawa, Toyoaki Murohara, Xin-Liang Ma, Noriyuki Ouchi
Cardiovascular disease (CVD) is the greatest cause of death, accounting for nearly one-third of all deaths worldwide. The increase in obesity rates over 3 decades is widespread and threatens the public health in both developed and developing countries. Obesity, the excessive accumulation of visceral fat, causes the clustering of metabolic disorders, such as type 2 diabetes, dyslipidemia, and hypertension, culminating in the development of CVD. Adipose tissue is not only an energy storage organ, but an active endocrine tissue producing various biologically active proteins known as adipokines...
June 10, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28601340/pilot-scale-evaluation-of-semi-passive-treatment-technologies-for-the-treatment-of-septage-under-temperate-climate-conditions
#17
Christine Gan, Pascale Champagne, Geof Hall
Population growth in rural Canada has resulted in an increase in municipal septage generation, which could overload existing treatment facilities that rely on biological treatment approaches. To address concerns associated with potential shock loading of these systems, three semi-passive wastewater treatment technologies were compared at the pilot-scale to identify a suitable approach to augment the capacity of an existing wastewater stabilization pond facility in rural Ontario. Two of these technologies, the BioDome and BioCord systems, were commercially available systems that make use of biofilm technology to improve treatment performance and enhance the robustness to temperature and hydraulic loading fluctuations...
June 7, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28599895/variations-in-resting-energy-expenditure-impact-on-gestational-weight%C3%A2-gain
#18
Ek Berggren, P O'Tierney-Ginn, S Lewis, L Presley, S Hauguel De-Mouzon, P M Catalano
BACKGROUND: There are significant variations in gestational weight gain, with many women gaining in excess of the Institute of Medicine guidelines. Unfortunately, efforts to improve appropriate gestational weight gain have had only limited success. To date, interventions have focused primarily on decreasing energy intake and/or increasing physical activity. Maternal resting energy expenditure, which comprises ∼60% of total energy expenditure compared with the ∼20% that comes from physical activity, may be an important consideration in understanding variations in gestational weight gain...
June 17, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28594899/validation-of-energy-intake-from-a-web-based-food-recall-for-children-and-adolescents
#19
Anine Christine Medin, Bjørge Herman Hansen, Helene Astrup, Ulf Ekelund, Lene Frost Andersen
The purpose of this study was to validate estimated energy intake from a web-based food recall, designed for children and adolescents. We directly compared energy intake to estimates of total energy expenditure, calculated from accelerometer outputs, combined with data on weight and sex or resting energy expenditure prediction equations. Children (8-9 years) and adolescents (12-14 years) were recruited through schools in Norway in 2013 (N = 253). Results showed that more than one third (36-37%) were identified as under-reporters of energy...
2017: PloS One
https://www.readbyqxmd.com/read/28594364/undernutrition-and-overnutrition-burden-for-diseases-in-developing-countries-the-role-of-oxidative-stress-biomarkers-to-assess-disease-risk-and-interventional-strategies
#20
REVIEW
Francesca Mastorci, Cristina Vassalle, Kyriazoula Chatzianagnostou, Claudio Marabotti, Khawer Siddiqui, Ahmed Ould Eba, Soueid Ahmed Sidi Mhamed, Arun Bandopadhyay, Marco Stefano Nazzaro, Mirko Passera, Alessandro Pingitore
The increased life expectancy, urbanization, and unhealthy lifestyle characterized by a shift towards a sedentary lifestyle and decreased energy expenditure are considered the main drivers of epidemiological transition. In particular, developing countries are facing a double burden caused by coexisting under- and over-nutrition, which causes a change in the disease profile from infectious diseases to a chronic degenerative pattern. This review discusses the under- and over-nutrition context in Mauritania and India, two countries that are experiencing a nutritional transition, and where we began a collaboration with local medical staff to integrate interventional and diagnostic guidelines...
June 8, 2017: Antioxidants (Basel, Switzerland)
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