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https://www.readbyqxmd.com/read/28107353/weight-perturbation-alters-leptin-signal-transduction-in-a-region-specific-manner-throughout-the-brain
#1
Michael V Morabito, Yann Ravussin, Bridget R Mueller, Alicja A Skowronski, Kazuhisa Watanabe, Kylie S Foo, Samuel X Lee, Anders Lehmann, Stephan Hjorth, Lori M Zeltser, Charles A LeDuc, Rudolph L Leibel
Diet-induced obesity (DIO) resulting from consumption of a high fat diet (HFD) attenuates normal neuronal responses to leptin and may contribute to the metabolic defense of an acquired higher body weight in humans; the molecular bases for the persistence of this defense are unknown. We measured the responses of 23 brain regions to exogenous leptin in 4 different groups of weight- and/or diet-perturbed mice. Responses to leptin were assessed by quantifying pSTAT3 levels in brain nuclei 30 minutes following 3 mg/kg intraperitoneal leptin...
2017: PloS One
https://www.readbyqxmd.com/read/28104916/trpv1-activation-counters-diet-induced-obesity-through-sirtuin-1-activation-and-prdm-16-deacetylation-in-brown-adipose-tissue
#2
P Baskaran, V Krishnan, K Fettel, P Gao, Z Zhu, J Ren, B Thyagarajan
BACKGROUND/OBJECTIVE: An imbalance between energy intake and expenditure leads to obesity. Increasing metabolism and thermogenesis in brown adipose tissue (BAT) can help in overcoming obesity. Here, we investigated the effect of activation of transient receptor potential vanilloid subfamily 1 (TRPV1) in the upregulation of thermogenic proteins in BAT to counter diet-induced obesity. SUBJECTS/METHODS: We investigated the effect of dietary supplementation of capsaicin (TRPV1 agonist) on the expression of metabolically important thermogenic proteins in BAT of wild type and TRPV1(-/-) mice that received either a normal chow or high fat (±capsaicin; TRPV1 activator) diet by immunoblotting...
January 20, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28100475/effects-of-obesity-and-exercise-on-testicular-leptin-signal-transduction-and-testosterone-biosynthesis-in-male-mice
#3
Xuejie Yi, Haining Gao, Dequan Chen, Donghui Tang, Wanting Huang, Tao Li, Tie Ma, Bo Chang
To explore the role of the testicular leptin and JAK-STAT(LEP-JAK-STAT) pathway in testosterone biosynthesis during juvenile stages and exercise for weight loss, male C57BL/6J mice were randomly divided into normal-diet (ND) and high-fat diet (HFD) groups. After 10 weeks, mice in the HFD group were further divided randomly into obese control (OC), obese moderate-volume exercise (OME), and obese high-volume exercise (OHE) groups. Mice in the OME group were provided with 2 h/day, 6 days/week swimming exercise for 8 weeks and mice in the OHE group underwent twice the amount of daily exercise intervention as the OME group...
January 18, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28097452/toward-the-optimal-strategy-for-sustained-weight-loss-in-overweight-cancer-survivors-a-systematic-review-of-the-literature
#4
REVIEW
Meeke Hoedjes, Maartje M van Stralen, Sheena Tjon A Joe, Matti Rookus, Flora van Leeuwen, Susan Michie, Jacob C Seidell, Ellen Kampman
PURPOSE: To gain more insight into the optimal strategy to achieve weight loss and weight loss maintenance in overweight and obese cancer survivors after completion of initial treatment, this systematic review aimed to provide an overview of the literature on intervention effects on weight, to describe intervention components used in effective interventions, to identify and synthesize behaviour change techniques (BCTs) and to assess the frequency with which these BCTs were used in effective interventions...
January 18, 2017: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/28097013/randomised-double-blind-clinical-investigation-to-compare-orlistat-60-milligram-and-a-customized-polyglucosamine-two-treatment-methods-for-the-management-of-overweight-and-obesity
#5
Manfred Stoll, Norman Bitterlich, Umberto Cornelli
BACKGROUND: The efficacy of a non-prescription drug to support weight loss programs has yet to be compared. This clinical trial investigates the comparability of orlistat 60 milligram (mg) and polyglucosamine. METHODS: Sixty-four overweight or obese subjects were included in a two-center double-blind study. One center was in Germany [center 1] and the other was in Italy [center 2]. The subjects (26 in center 1 and 38 in center 2) were recommended to follow a calorie deficit of about 2000 kilojoules/day and to increase their physical activity to 3 metabolic equivalent hours (MET h)/day...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28096099/high-saturated-fat-diet-increases-circulating-angiotensin-converting-enzyme-which-is-enhanced-by-the-rs4343-polymorphism-defining-persons-at-risk-of-nutrient-dependent-increases-of-blood-pressure
#6
Rita Schüler, Martin A Osterhoff, Turid Frahnow, Anne-Cathrin Seltmann, Andreas Busjahn, Stefan Kabisch, Li Xu, Alexander S Mosig, Joachim Spranger, Matthias Möhlig, Silke Hornemann, Michael Kruse, Andreas F H Pfeiffer
BACKGROUND: Angiotensin-converting enzyme (ACE) plays a major role in blood pressure regulation and cardiovascular homeostasis. Contrary to the assumption that ACE levels are stable, circulating ACE has been shown to be altered in obesity and weight loss. We sought to examine effects of a high-saturated-fat (HF) diet on ACE within the NUtriGenomic Analysis in Twins (NUGAT) study. METHODS AND RESULTS: Forty-six healthy and nonobese twin pairs initially consumed a carbohydrate-rich, low-fat diet over a period of 6 weeks to standardize for nutritional behavior prior to the study, followed by 6 weeks of HF diet under isocaloric conditions...
January 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28093996/challenges-related-to-glycemic-control-in-type-2-diabetes-mellitus-patients
#7
Masoumeh Kheirandish, Hamidreza Mahboobi, Maryam Yazdanparast, Mohammad Amjad Kamal
Diabetes mellitus (DM) is a chronic disease with long-term complications. Glycemic control is an important part in management of DM. The first line in treatment of type 2 DM (T2DM) is diet and life style change. Metformin is the first choice of medication in T2DM patients. Sulfonylureas have high risk of hypoglycemia. Glinides are associated with lower risk of hypoglycemia in comparison to sulfonylureas. Also α-glucosidase inhibitors decrease the polysacarides digestion in small intestine and less effective in comparison to metformin and sulfonylureas in lowering hemoglobin A1c (HbA1c)...
January 15, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28092152/issues-in-nutrition-dietary-considerations-in-select-chronic-conditions
#8
Margaret E Thompson, Mary Barth Noel
Chronic diseases that affect the gastrointestinal tract also tend to affect nutrition. The incidence of chronic liver disease is increasing. As the prevalence of obesity rises, so do the incidences of nonalcoholic fatty liver disease and nonalcoholic steatohepatitis. Patients with chronic liver disease usually have some degree of malnutrition. In the absence of encephalopathy, patients with chronic liver disease should consume more protein than that in the average diet. There is some controversy about whether diet plays a role in the development of inflammatory bowel disease...
January 2017: FP Essentials
https://www.readbyqxmd.com/read/28092151/issues-in-nutrition-carbohydrates
#9
Margaret E Thompson, Mary Barth Noel
Carbohydrates include sugars, starches, and dietary fibers. Resistant starches resemble fiber in their behavior in the intestinal tract, and may have positive effects on blood glucose levels and the gut microbiome. Fibers are classified as soluble and insoluble, but most fiber-containing foods contain a mixture of soluble and insoluble fiber. Soluble fiber has been shown to lower low-density lipoprotein cholesterol levels. Many artificial sweeteners and other sugar substitutes are available. Most natural sources of sweeteners also are energy sources...
January 2017: FP Essentials
https://www.readbyqxmd.com/read/28090354/what-weight-loss-treatment-options-do-geriatric-patients-with-overweight-and-obesity-want-to-consider
#10
M MacMillan, K Cummins, K Fujioka
INTRODUCTION: Since the 1990s, a number of weight loss medications have been removed from the USA and or European market because of adverse events associated with these medications. These medications include fenfluramine (heart valve thickening), sibutramine (cardiovascular risk) and rimonabant (depression). This history may affect a patient's desire to consider weight loss medications as an option for weight management. OBJECTIVE: This descriptive study was designed to observe what treatment options the geriatric patient (age 65 or higher) seeking weight loss would like to consider, as well as the reasons they felt they struggled with overweight or obesity...
December 2016: Obesity Science & Practice
https://www.readbyqxmd.com/read/28090344/tasting-profile-affects-adoption-of-caloric-beverage-reduction-in-a-randomized-weight-loss-intervention
#11
G Turner-McGrievy, X Wang, B Popkin, D F Tate
OBJECTIVE: The aim of this study was to examine differences in rates of non-caloric beverage adoption by participants classified as sweet likers (SLs) or sweet dislikers (measured using a behavioural tasting task). METHODS: Data are a sub-study from a 6-month, three-group, randomized weight loss trial (CHOICE) (body mass index 36.3 ± 5.8 kg m(-2), 84% female, aged 42.2 ± 10.9 years, 53% African-American) comparing the replacement of caloric beverages with either non-caloric sweetened beverages (diet) or water (water) compared with a control group...
December 2016: Obesity Science & Practice
https://www.readbyqxmd.com/read/28090343/amylin-leptin-synergy-is-absent-in-extreme-obesity-and-not-restored-by-calorie-restriction-induced-weight-loss-in-rats
#12
J L Trevaskis, C Wittmer, J Athanacio, P S Griffin, D G Parkes, J D Roth
OBJECTIVE: Co-administration of amylin and leptin induces synergistic and clinically meaningful (>10%) weight loss that is attenuated as the degree of obesity increases. We explored whether calorie restriction (CR) could restore amylin/leptin synergy in very obese rats. METHODS: Sprague Dawley rats on high-fat diet (696 ± 8 g, n = 72) were randomized to three cohorts (C1-C3). Rats in C1 were administered vehicle, rat amylin (50 µg kg(-1) d(-1)), murine leptin (125 µg kg(-1) d(-1)) or amylin and leptin for 28 days (n = 6 per group) via subcutaneous minipump...
December 2016: Obesity Science & Practice
https://www.readbyqxmd.com/read/28090338/executive-functions-predict-weight-loss-in-a-medically-supervised-weight-loss-programme
#13
R Galioto, D Bond, J Gunstad, V Pera, L Rathier, G Tremont
BACKGROUND: Deficits in executive functions are related to poorer weight loss after bariatric surgery; however, less is known about the role that these deficits may play during participation in nonsurgical weight loss programmes. This study examined associations between objectively measured executive functions and weight loss during participation in a medically supervised weight loss programme. METHODS: Twenty-three adult patients (age 50.4 ± 15.1, BMI 44.2 ± 8...
December 2016: Obesity Science & Practice
https://www.readbyqxmd.com/read/28089080/salba-chia-salvia-hispanica-l-in-the-treatment-of-overweight-and-obese-patients-with-type-2-diabetes-a-double-blind-randomized-controlled-trial
#14
V Vuksan, A L Jenkins, C Brissette, L Choleva, E Jovanovski, A L Gibbs, R P Bazinet, F Au-Yeung, A Zurbau, H V T Ho, L Duvnjak, J L Sievenpiper, R G Josse, A Hanna
BACKGROUND AND AIM: Preliminary findings indicate that consumption of Salba-chia (Salvia hispanica L.), an ancient seed, improves management of type 2 diabetes and suppresses appetite. The aim of this study was to assesse the effect of Salba-chia on body weight, visceral obesity and obesity-related risk factors in overweight and obese adults with type 2 diabetes. METHODS: A double-blind, randomized, controlled trial with two parallel groups involved 77 overweight or obese patients with type 2 diabetes (HbA1c: 6...
December 9, 2016: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28079397/mixed-compared-with-single-source-proteins-in-high-protein-diets-affect-kidney-structure-and-function-differentially-in-obese-fa-fa-zucker-rats
#15
Jessay G Devassy, Jennifer L Wojcik, Naser H M Ibrahim, Peter Zahradka, Carla G Taylor, Harold M Aukema
Questions remain regarding the potential negative effects of dietary high protein (HP) on kidney health, particularly in the context of obesity in which the risk for renal disease is already increased. To examine whether some of the variability in HP effects on kidney health may be due to source of protein, obese fa/fa Zucker rats were given HP (35% of energy from protein) diets containing either casein, soy protein, or a mixed source of animal and plant proteins for 12 weeks. Control lean and obese rats were given diets containing casein at normal protein (15% of energy from protein) levels...
October 6, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28079250/use-of-the-ketogenic-diet-in-the-neonatal-intensive-care-unit-safety-and-tolerability
#16
Lindsey Thompson, Erin Fecske, Mohammad Salim, Ara Hall
Drug-resistant epilepsy poses a challenge in neonatal patients, especially those in the neonatal intensive care unit (NICU), who have various secondary comorbidities. We present results of four children with a history of drug-resistant epilepsy for whom a ketogenic diet was initiated and used in the NICU. A nonfasting induction into ketosis over 1-2 weeks was utilized, with gradual increases in the ketogenic ratio every 2-3 days. Data were collected retrospectively from a database, which included medical history, daily progress notes, relevant laboratory data, and imaging and diagnostic information...
January 12, 2017: Epilepsia
https://www.readbyqxmd.com/read/28079242/application-of-baros-questionnaire-in-obese-patients-undergoing-bariatric-surgery-with-2-years-of-evolution
#17
Caetano de Queiroz, José Afonso Sallet, Pedro Gabriel Melo DE Barros E Silva, Luzia da Gloria Pereira de Sousa Queiroz, Jélis Arenas Pimentel, Paulo Clemente Sallet
BACKGROUND: -In recent decades, the high prevalence of obesity in the general population has brought serious concerns in terms of public health. Contrarily to conventional treatment involving dieting and physical exercising, often ineffective in generating long term results, bariatric opera-tions have been an effective method for sustained weight loss in morbidly obese individuals. The Bariatric Analysis and Reporting Outcome System (BAROS) is an objective and recognized system in the overall evaluation of results after bariatric surgery...
January 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28078804/a-low-protein-diet-induces-body-weight-loss-and-browning-of-subcutaneous-white-adipose-tissue-through-enhanced-expression-of-hepatic-fibroblast-growth-factor-21-fgf21
#18
Albert Pérez-Martí, Maite Garcia-Guasch, Anna Tresserra-Rimbau, Alexandra Carrilho-Do-Rosário, Ramon Estruch, Jordi Salas-Salvadó, Miguel Ángel Martínez-González, Rosa Lamuela-Raventós, Pedro F Marrero, Diego Haro, Joana Relat
SCOPE: Fibroblast growth factor 21 (FGF21) is considered a promising therapeutic candidate for the treatment of obesity. Since FGF21 production is regulated by various nutritional factors, we analyze the impact of low protein intake on circulating levels of this growth hormone in mice and in a sub cohort of the PREDIMED (Prevención con Dieta Mediterránea) trial. We also describe the role of hepatic FGF21 in metabolic adaptation to a low-protein diet (LPD). METHODS AND RESULTS: We fed control and liver-specific Fgf21 knockout (LFgf21KO) mice a LPD...
January 11, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28077380/metabolomic-profiles-as-reliable-biomarkers-of-dietary-composition
#19
Tõnu Esko, Joel N Hirschhorn, Henry A Feldman, Yu-Han H Hsu, Amy A Deik, Clary B Clish, Cara B Ebbeling, David S Ludwig
BACKGROUND: Clinical nutrition research often lacks robust markers of compliance, complicating the interpretation of clinical trials and observational studies of free-living subjects. OBJECTIVE: We aimed to examine metabolomics profiles in response to 3 diets that differed widely in macronutrient composition during a controlled feeding protocol. DESIGN: Twenty-one adults with a high body mass index (in kg/m(2); mean ± SD: 34.4 ± 4.9) were given hypocaloric diets to promote weight loss corresponding to 10-15% of initial body weight...
January 11, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28076839/chemotherapy-can-induce-weight-normalization-of-morbidly-obese-mice-despite-undiminished-ingestion-of-high-fat-diet
#20
Cheryl E Myers, Dominique B Hoelzinger, Tiffany N Truong, Lindsey A Chew, Arpita Myles, Leena Chaudhuri, Jan B Egan, Jun Liu, Sandra J Gendler, Peter A Cohen
Morbidly obese patients who accomplish substantial weight loss often display a long-term decline in their resting metabolism, causing even relatively restrained caloric intake to trigger a relapse to the obese state. Paradoxically, we observed that morbidly obese mice receiving chemotherapy for cancer experienced spontaneous weight reduction despite unabated ingestion of their high fat diet (HFD). This response to chemotherapy could also be achieved in morbidly obese mice without cancer. Optimally dosed methotrexate (MTX) or cyclophosphamide (CY) enabled the mice to completely and safely normalize their body weight despite continued consumption of obesogenic quantities of HFD...
January 10, 2017: Oncotarget
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