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Body fat loss

Shu-Fang Chang
PURPOSE: We investigated the relationships among geriatric syndrome, physiological functions, and body composition in community-dwelling older people with varying nutritional statuses. Other factors correlated with nutritional status in community-dwelling older people were also explored. BACKGROUND: The World Health Organization has initiated preventive programs for addressing malnutrition. However, few studies have focused on the correlations among geriatric syndrome, physiological functions, and body composition in older people at risk of malnutrition...
October 25, 2016: Journal of Nursing Scholarship
Grace M Mackie, Dorit Samocha-Bonet, Charmaine S Tam
BACKGROUND: There remains common belief in the general community that weight cycling or 'yo-yo dieting' is associated with potential adverse effects on obesity and metabolic risk factors. In 1994, a review by the National Task Force on the Prevention and Treatment of Obesity concluded that weight cycling did not impact metabolism, and that weight loss attempts should not be discouraged. This study is an updated review of the literature published since 1994, to determine if weight cycling is associated with metabolic risk factors for obesity and type 2 diabetes...
October 20, 2016: Obesity Research & Clinical Practice
Reena Sudan, Ranjan Sudan, Elizabeth Lyden, Jon S Thompson
BACKGROUND: Food cravings and consumption of craved foods after Roux-en-Y gastric bypass (RYGB) are poorly understood. Food cravings after bariatric surgery may explain why some patients fail to change eating behaviors after RYGB, and understanding these cravings may provide better information for nutritional counseling to either enhance weight loss or prevent weight regain. OBJECTIVES: To study cravings in RYGB patients and compare them with cholecystectomy (CC) control patients...
September 9, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Mariya Markova, Olga Pivovarova, Silke Hornemann, Stephanie Sucher, Turid Frahnow, Katrin Wegner, Jürgen Machann, Klaus Jürgen Petzke, Johannes Hierholzer, Ralf Lichtinghagen, Christian Herder, Maren Carstensen-Kirberg, Michael Roden, Natalia Rudovich, Susanne Klaus, Ralph Thomann, Rosemarie Schneeweiss, Sascha Rohn, Andreas F H Pfeiffer
BACKGROUND & AIMS: Non-alcoholic fatty liver disease (NAFLD) is associated with increased risk of hepatic, cardiovascular, and metabolic diseases. High-protein diets, rich in methionine and branched chain amino acids (BCAAs), apparently reduce liver fat but may induce insulin resistance. We investigated the effects of diets high in animal protein vs plant protein, which differ in levels of methionine and BCAA, in subjects with type 2 diabetes and NAFLD. We examined levels of liver fat, lipogenic indices, markers of inflammation, serum levels of fibroblast growth factor 21 (FGF21), and activation of signaling pathways in adipose tissue...
October 17, 2016: Gastroenterology
C Cortes-Oliveira, C F Nicoletti, M A de Souza Pinhel, B A P de Oliveira, D C G Quinhoneiro, N Y Noronha, J S Marchini, W A da Silva Júnior, W S Júnior, C B Nonino
BACKGROUND/OBJECTIVES: Although energy restriction contributes to weight loss, it may also reduce energy expenditure, limiting the success of weight loss in the long term. Studies have described how genetics contributes to the development of obesity, and uncoupling proteins 1 and 2 (UCP1 and UCP2) and beta-3-adrenoceptor (ADRB3) have been implicated in the metabolic pathways that culminate in this condition. This study aimed to evaluate how the UCP1, UCP2 and ADRB3 genes influence weight loss in severely obese women submitted to hypocaloric dietary intervention...
October 19, 2016: European Journal of Clinical Nutrition
M Pourhassan, C-C Glüer, P Pick, W Tigges, M J Müller
BACKGROUND/OBJECTIVES: We assessed the effect of weight loss-associated changes in detailed body composition on plasma insulin levels and homeostatic model assessment (HOMA) index to calculate the magnitude of reduction in different adipose tissue depots required to improve insulin sensitivity. SUBJECTS/METHODS: A total of 50 subjects aged 20-69 years were studied. The participants were compiled from low-calorie diet interventions and bariatric surgery and differed in their baseline body mass index (BMI; range 21...
October 19, 2016: European Journal of Clinical Nutrition
Diego Gomez-Arbelaez, Diego Bellido, Ana I Castro, Lucia Ordoñez-Mayan, Jose Carreira, Cristobal Galban, Miguel A Martinez-Olmos, Ana B Crujeiras, Ignacio Sajoux, Felipe F Casanueva
CONTEXT: A common concern when using low-calorie diets as a treatment for obesity is the reduction in fat-free mass, mostly muscular mass that occurs together with the fat mass loss, and the best methodologies to evaluate body composition changes. OBJECTIVE: To evaluate the very low-calorie-ketogenic (VLCK) diet-induced changes in body composition of obese patients and to compare three different methodologies employed to evaluate that changes. DESIGN: Twenty obese patients followed a VLCK diet for 4 months...
October 18, 2016: Journal of Clinical Endocrinology and Metabolism
Anthony Heagerty
There is now a considerable body of evidence to suggest that the fat cells that surround blood vessels (perivascular adipose tissue, PVAT) can influence profoundly arterial tone by releasing vasodilator adipokines which can act locally in a paracrine fashion. In healthy lean individuals the primary vasodilator released appears to be adiponectin and there is a complex interation between autonomic nerve firing in PVAT and the release of nitric oxide from adipocytes and an increased bioavailability of adiponectin...
September 2016: Journal of Hypertension
Ellen B Gold, Sybil L Crawford, Janie F Shelton, Ping G Tepper, Carolyn J Crandall, Gail A Greendale, Karen A Matthews, Rebecca C Thurston, Nancy E Avis
OBJECTIVE: Greater body mass index (BMI) and body fat are associated with vasomotor symptoms (VMS). Thus, weight loss may prevent VMS. We analyzed whether concurrent BMI or waist circumference and/or changes in weight or waist circumference predicted incident VMS and whether these relations differed by menopause stage or race/ethnicity. METHODS: Data from 10 follow-up visits for 1,546 participants in the Study of Women's Health Across the Nation who reported no VMS at baseline were modeled for time to first symptomatic visit in relation to concurrent BMI and waist circumference and change in weight and waist circumference during early and late menopause using discrete survival analyses, adjusting for covariates...
October 3, 2016: Menopause: the Journal of the North American Menopause Society
Ilse Reinders, Marjolein Visser, Laura Schaap
PURPOSE OF REVIEW: Aging is associated with various changes in body composition, including changes in weight, loss of muscle mass, and increase in fat mass. This article describes the role of body weight and body composition, and their changes, in the risk of frailty in old age. RECENT FINDINGS: Based on current literature, observational studies on obesity and high waist circumference show most convincing results for an association with frailty. The independent role of muscle mass and muscle fat infiltration remains unclear, mainly due to a lack of studies and a lack of accurate measurement of body composition by computed tomography or MRI...
September 28, 2016: Current Opinion in Clinical Nutrition and Metabolic Care
Cornelia Habacher, Yanwu Guo, Richard Venz, Pooja Kumari, Anca Neagu, Dimos Gaidatzis, Eva B Harvald, Nils J Færgeman, Heinz Gut, Rafal Ciosk
Obesity is a global health issue, arousing interest in molecular mechanisms controlling fat. Transcriptional regulation of fat has received much attention, and key transcription factors involved in lipid metabolism, such as SBP-1/SREBP, LPD-2/C/EBP, and MDT-15, are conserved from nematodes to mammals. However, there is a growing awareness that lipid metabolism can also be controlled by post-transcriptional mechanisms. Here, we show that the Caenorhabditis elegans RNase, REGE-1, related to MCPIP1/Zc3h12a/Regnase-1, a key regulator of mammalian innate immunity, promotes accumulation of body fat...
October 7, 2016: Developmental Cell
Carolina F Nicoletti, Ana Paula R P de Oliveira, Maria José F Brochado, Marcela A S Pinhel, Bruno A P de Oliveira, Julio S Marchini, José E Dos Santos, Wilson Salgado, Nathalia Moreno Cury, Luiza Ferreira de Araújo, Wilson A Silva, Carla B Nonino
OBJECTIVE: The aim of this study was to investigate whether the Ala55Val and -866G>A polymorphisms of the UCP2 gene are related to weight loss and changes in body composition after bariatric surgery performed by Roux-en-Y gastric bypass (RYGB). METHODS: This longitudinal study enrolled obese patients submitted to RYGB. Data regarding weight (kg), body mass index (kg/m(2)), fat-free mass (FFM; kg), fat mass (kg), weight loss (kg and %), and percent excess weight loss were collected from both preoperative and 1-y postoperative medical records...
August 9, 2016: Nutrition
Manfred J Müller, Janna Enderle, Anja Bosy-Westphal
Metabolic adaptation to weight changes relates to body weight control, obesity and malnutrition. Adaptive thermogenesis (AT) refers to changes in resting and non-resting energy expenditure (REE and nREE) which are independent from changes in fat-free mass (FFM) and FFM composition. AT differs in response to changes in energy balance. With negative energy balance, AT is directed towards energy sparing. It relates to a reset of biological defence of body weight and mainly refers to REE. After weight loss, AT of nREE adds to weight maintenance...
October 13, 2016: Current Obesity Reports
Tatiana Moro, Grant Tinsley, Antonino Bianco, Giuseppe Marcolin, Quirico Francesco Pacelli, Giuseppe Battaglia, Antonio Palma, Paulo Gentil, Marco Neri, Antonio Paoli
BACKGROUND: Intermittent fasting (IF) is an increasingly popular dietary approach used for weight loss and overall health. While there is an increasing body of evidence demonstrating beneficial effects of IF on blood lipids and other health outcomes in the overweight and obese, limited data are available about the effect of IF in athletes. Thus, the present study sought to investigate the effects of a modified IF protocol (i.e. time-restricted feeding) during resistance training in healthy resistance-trained males...
October 13, 2016: Journal of Translational Medicine
Matheus Amarante DO Nascimento, Aline M Gerage, Renata S Januário, Fábio L Pina, Luís A Gobbo, Jerry L Mayhew, Edilson S Cyrino
BACKGROUND: Evidence suggests that the aging process tends to lead to sarcopenia and osteoporosis which reduce the quality of life in older women. Resistance training (RT) is widely supported as a means of delaying or offsetting the decline in muscle strength and loss of bone mineral content in older women. The purpose of this investigation was to analyze the effects of a 12-wk RT program (3 times a week) with dietary intake maintenance on muscle strength and body composition of healthy, sedentary older women...
October 13, 2016: Journal of Sports Medicine and Physical Fitness
Lisa M Shank, Marian Tanofsky-Kraff, Nichole R Kelly, Natasha A Schvey, Shannon E Marwitz, Rim D Mehari, Sheila M Brady, Andrew P Demidowich, Miranda M Broadney, Ovidiu A Galescu, Courtney K Pickworth, Susan Z Yanovski, Jack A Yanovski
BACKGROUND: Loss of control (LOC) eating in youth is associated with excess body weight and adiposity. After adjusting for fat mass, youth with LOC eating have higher blood pressure and higher low-density lipoprotein cholesterol compared to youth without LOC eating. Increased inflammation may account for this relationship, although few data have examined this hypothesis. Therefore, this study explored the association between LOC eating and high-sensitivity C-reactive protein (hsCRP), a marker of inflammation...
October 12, 2016: Childhood Obesity
Pasquina Marzola, Federico Boschi, Francesco Moneta, Andrea Sbarbati, Carlo Zancanaro
Localization, differentiation, and quantitative assessment of fat tissues have always collected the interest of researchers. Nowadays, these topics are even more relevant as obesity (the excess of fat tissue) is considered a real pathology requiring in some cases pharmacological and surgical approaches. Several weight loss medications, acting either on the metabolism or on the central nervous system, are currently under preclinical or clinical investigation. Animal models of obesity have been developed and are widely used in pharmaceutical research...
2016: Frontiers in Pharmacology
Zuleen Delina Fasya Abdul Ghani, Juani Mazmin Husin, Ahmad Hazri Ab Rashid, Khozirah Shaari, Zamri Chik
Piper Betle L. (PB) belongs to the Piperaceae family. The presence of a fairly large quantity of diastase in the betel leaf is deemed to play an important role in starch digestion and calls for the study of weight loss activities and metabolite profile from PB leaf extracts using metabolomics approach to be performed. PB dried leaves were extracted with 70% ethanol and the extracts were subjected to five groups of rats fed with high fat (HF) and standard diet (SD). They were then fed with the extracts in two doses and compared with a negative control group given water only according to the study protocol...
October 7, 2016: Journal of Ethnopharmacology
Cristina Emilia Chițu-Tișu, Ecaterina Constanța Barbu, Mihai Lazăr, Mihai Bojincă, Ana-Maria Tudor, Adriana Hristea, Adrian Octavian Abagiu, Daniela Adriana Ion, Anca Ioana Bădărău
BACKGROUND: The development of combination antiretroviral therapies (cART) represents a significant advance in the treatment of (human immunodeficiency virus) HIV infection. However, several studies report that a large percentage of individuals with HIV, particularly those receiving cART, present body composition differences compared with the general population. The aim of this study was to explore body composition differences by dual-energy X-ray absorptiometry (DEXA), among HIV-positive patients receiving cART, in comparison to healthy controls...
October 11, 2016: Acta Clinica Belgica
Tsuyoshi Chiba, Sachina Suzuki, Yoko Sato, Tatsuki Itoh, Keizo Umegaki
AIM: Non-alcoholic steatohepatitis (NASH) is a globally recognized liver disease. A methionine- and choline-deficient diet is used to induce NASH in mice; however, this diet also causes severe body weight loss. To resolve this issue, we examined the effects of methionine content in a high-fat and choline-deficient (HFCD) diet on body weight and the development of NASH in mice. METHODS: C57BL/6J mice (male, 10 weeks of age) were fed an L-amino acid rodent (control) diet, high-fat (HF) diet, or HFCD diet containing various amounts of methionine (0...
2016: PloS One
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