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Appetite hormones

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https://www.readbyqxmd.com/read/29240652/interindividual-responses-of-appetite-to-acute-exercise-a-replicated-crossover-study
#1
Fernanda R Goltz, Alice E Thackray, James A King, James L Dorling, Greg Atkinson, David J Stensel
PURPOSE: Acute exercise transiently suppresses appetite, which coincides with alterations in appetite-regulatory hormone concentrations. Individual variability in these responses is suspected, but replicated trials are needed to quantify them robustly. We examined the reproducibility of appetite and appetite-regulatory hormone responses to acute exercise and quantified the individual differences in responses. METHODS: Fifteen healthy, recreationally-active men completed two control (60-min resting) and two exercise (60-min fasted treadmill running at 70% peak oxygen uptake) conditions in randomised sequences...
December 13, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29235554/morning-and-afternoon-appetite-and-gut-hormone-responses-to-meal-and-stress-challenges-in-obese-individuals-with-and-without-binge-eating-disorder
#2
S Carnell, C Grillot, T Ungredda, S Ellis, N Mehta, J Holst, A Geliebter
BACKGROUND: Eating late in the day is common, and stress can induce eating. Little is understood about how time of day and stress interact to affect appetite and thereby body weight. These may be particularly important influences in binge eaters, who tend to binge in the evening, and in response to stress. METHOD: Obese participants with (n=16) and without (n=16) Binge Eating Disorder (BED) participated in two identical test protocols beginning either in the morning or the afternoon (AM condition/PM condition), each following an 8 h fast...
December 13, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29233536/leap2-is-an-endogenous-antagonist-of-the-ghrelin-receptor
#3
Xuecai Ge, Hong Yang, Maria A Bednarek, Hadas Galon-Tilleman, Peirong Chen, Michael Chen, Joshua S Lichtman, Yan Wang, Olivier Dalmas, Yiyuan Yin, Hui Tian, Lutz Jermutus, Joseph Grimsby, Cristina M Rondinone, Anish Konkar, Daniel D Kaplan
Ghrelin, an appetite-stimulatory hormone secreted by the stomach, was discovered as a ligand for the growth hormone secretagogue receptor (GHSR). Through GHSR, ghrelin stimulates growth hormone (GH) secretion, a function that evolved to protect against starvation-induced hypoglycemia. Though the biology mediated by ghrelin has been described in great detail, regulation of ghrelin action is poorly understood. Here, we report the discovery of liver-expressed antimicrobial peptide 2 (LEAP2) as an endogenous antagonist of GHSR...
December 6, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/29230947/dietary-slowly-digestible-starch-triggers-the-gut-brain-axis-in-obese-rats-with-accompanied-reduced-food-intake
#4
Like Y Hasek, Robert J Phillips, Genyi Zhang, Kimberly P Kinzig, Choon Young Kim, Terry L Powley, Bruce R Hamaker
SCOPE: Slowly digestible starch (SDS), as a functional carbohydrate providing a slow and sustained glucose release, may be able to modulate food intake through activation of the gut-brain axis. METHODS AND RESULTS: Diet-induced obese rats were used to test the effect on feeding behavior of high fat (HF) diets containing a SDS, fabricated to digest into the ileum, as compared to rapidly digestible starch (RDS). Ingestion of the HF-SDS diet over an 11-week period reduced daily food intake, through smaller meal size, to the same level as a lean body control group, while the group consuming the HF-RDS diet remained at a high food intake...
December 11, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29229313/emerging-role-of-adipocytokines-in-type-2-diabetes-as-mediators-of-insulin-resistance-and-cardiovascular-disease
#5
REVIEW
Ravindran Jaganathan, Rajeswari Ravindran, Sugapriya Dhanasekaran
Adipose tissue is an enormously active endocrine organ, secreting various hormones, such as adiponectin, leptin, resistin and visfatin, together with classical cytokines, such as tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6). All these adipocytokines plays significant roles in the regulation of energy metabolism, glucose and lipid metabolism, reproduction, cardiovascular function and immunity. Adipocytokines are significantly regulated by nutritional status and can directly influence other organ systems, including brain, liver and skeletal muscle...
December 8, 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/29226825/desacetyl-%C3%AE-melanocyte-stimulating-hormone-and-%C3%AE-melanocyte-stimulating-hormone-are-required-to-regulate-energy-balance
#6
Kathleen G Mountjoy, Alexandre Caron, Kristina Hubbard, Avik Shome, Angus C Grey, Bo Sun, Sarah Bould, Martin Middleditch, Beau Pontré, Ailsa McGregor, Paul W R Harris, Renata Kowalczyk, Margaret A Brimble, Rikus Botha, Karen M L Tan, Sarah J Piper, Christina Buchanan, Syann Lee, Anthony P Coll, Joel K Elmquist
OBJECTIVE: Regulation of energy balance depends on pro-opiomelanocortin (POMC)-derived peptides and melanocortin-4 receptor (MC4R). Alpha-melanocyte stimulating hormone (α-MSH) is the predicted natural POMC-derived peptide that regulates energy balance. Desacetyl-α-MSH, the precursor for α-MSH, is present in brain and blood. Desacetyl-α-MSH is considered to be unimportant for regulating energy balance despite being more potent (compared with α-MSH) at activating the appetite-regulating MC4R in vitro...
November 24, 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29224011/glp-1-and-ghrelin-attenuate-high-glucose-high-lipid-induced-apoptosis-and-senescence-of-human-microvascular-endothelial-cells
#7
Pengzhi Liao, Dan Yang, Duan Liu, Yuehong Zheng
BACKGROUND/AIMS: GLP-1 and ghrelin are common appetite-regulating hormones. Both have multiple functions beyond metabolic regulation. However, the effects of GLP-1 and ghrelin on endothelial biology are not fully understood. Here, we investigate the roles of GLP-1 and ghrelin in microvascular endothelial apoptosis and senescence. METHODS: Human microvascular endothelial cells (HMECs) were exposed to high glucose/high lipid (HG/HL) conditions and treated with GLP-1 or ghrelin...
December 7, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29210639/guanylate-cyclase-c-a-current-hot-target-from-physiology-to-pathology
#8
Jose Antonio Uranga, Marta Castro, Raquel Abalo
Guanylate cyclase C (GC-C) receptor is a transmembrane receptor, predominantly expressed in intestinal epithelial cells, that plays a main role in homeostasis and function of the digestive tract. The endogenous ligands for this receptor are the paracrine hormones uroguanylin and guanylin. The heat-stable enterotoxin, produced by enterotoxigenic bacteria, is also a natural ligand of this receptor. Upon ligand binding, GC-C receptors increase the second messenger cyclic guanosine monophosphate (cGMP) levels, regulating a variety of key cell-type specific processes such as chloride and bicarbonate secretion (which increases luminal fluid and intestinal motility), epithelial cell growth, regulation of intestinal barrier integrity and visceral sensitivity...
December 5, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29208688/the-impact-of-acute-bouts-of-interval-and-continuous-walking-on-energy-intake-and-appetite-regulation-in-subjects-with-type-2-diabetes
#9
Ida A Müller, Anne-Sophie Wedell-Neergaard, Thomas P J Solomon, Kristian Karstoft
In healthy subjects, it has been suggested that exercise may acutely suppress energy-intake and appetite, with peak intensity being an important determinant for this effect. In subjects with type 2 diabetes (T2D), the effect of exercise on appetite-related variables is, however, virtually unknown. We aimed to assess the effects of two exercise interventions, differing with regards to peak intensity, on energy-intake, satiety and appetite-related hormones in subjects with T2D. Thirteen subjects with T2D completed three 60-min interventions with continuous measurement of oxygen consumption in a randomized and counterbalanced order: (1) Control, (2) Continuous walking (CW; intended 73% of VO2peak), (3) Interval-walking (IW; repeated cycles of 3 min slow [54% of VO2peak] and 3 min fast walking [89% of VO2peak])...
December 2017: Physiological Reports
https://www.readbyqxmd.com/read/29204277/cytomegalovirus-mononucleosis-induced-thyroiditis-in-an-immunocompetent-patient
#10
V Larouche, M Tamilia
Enteroviruses, including coxsackieviruses and Echovirus, are well known pathogens responsible for the development of thyroiditis. We describe the case of a 49-year-old woman with no personal or family history of thyroid disease who presented to the emergency room with a two-week history of daily fevers up to 39°C, a sore throat, occasional palpitations and diaphoresis, decreased appetite and an unintentional 10 kg weight loss over the same time course Physical examination revealed mild tachycardia, an intention tremor and a normal-sized, nontender thyroid gland without palpable nodules...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29202350/case-report-ectopic-cushing-s-syndrome-in-a-young-male-with-hidden-lung-carcinoid-tumor
#11
Ghanem Aljassem, Hazem Aljasem
INTRODUCTION: Ectopic Cushing syndrome is a form of Cushing's in which a tumor outside the pituitary gland produces adrenocorticotropic hormone (ACTH). Small cell carcinoma and carcinoid of the lung comprises half of its cases. The main purpose of this study is to present a case of ectopic Cushing syndrome caused by a hidden lung carcinoid and how to manage it. PRESENTATION OF CASE: Here we present a case of a 26year old young male complains of increased weight and appetite, proximal muscle weakness, easy bruising and appearing of purple striae on his abdomen, with a final diagnosis of ACTH secreting lung carcinoid...
November 28, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29199179/on-the-relationship-between-glucose-absorption-and-glucose-stimulated-secretion-of-glp-1-neurotensin-and-pyy-from-different-intestinal-segments-in-the-rat
#12
Rune E Kuhre, Charlotte B Christiansen, Monika Y Saltiel, Nicolai J Wewer Albrechtsen, Jens J Holst
Ingested glucose powerfully stimulates the secretion of appetite- and metabolism-regulating peptide hormones from the gut - including glucagon-like peptide-1 (GLP-1), neurotensin (NT), and polypeptide YY (PYY). However, the regional origin of these secretions after glucose stimulation is not well characterized, and it remains uncertain how their secretion is related to glucose absorption. We isolated and perfused either the upper (USI) or the lower (LSI) small intestine or the colon from rats and investigated concomitant glucose absorption and secretory profiles of GLP-1, NT, and PYY In the USI and LSI luminal glucose (20%, w/v) increased GLP-1 and NT secretion five to eightfold compared to basal secretion...
December 2017: Physiological Reports
https://www.readbyqxmd.com/read/29196878/gut-microbiome-production-of-short-chain-fatty-acids-and-obesity-in-children
#13
REVIEW
Selvasankar Murugesan, Khemlal Nirmalkar, Carlos Hoyo-Vadillo, Matilde García-Espitia, Daniela Ramírez-Sánchez, Jaime García-Mena
Obesity has been a worldwide multifactorial epidemic malady for the last 2 decades. Changes in gut microbiota composition and its metabolites - short-chain fatty acids (SCFAs) - have been associated with obesity. Recent evidence suggests that SCFAs made by the gut microbiota may regulate directly or indirectly physiological and pathological processes in relation to obesity. We review the influence of gut microbiota in energy, glucose, and lipid homeostasis control via their metabolites. Gut microbial disturbances in obese children may have a role in their metabolism...
December 2, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29193741/energy-expenditure-and-hormone-responses-in-humans-after-overeating-high-fructose-corn-syrup-versus-whole-wheat-foods
#14
Mostafa Ibrahim, Susan Bonfiglio, Mathias Schlögl, Karyne L Vinales, Paolo Piaggi, Colleen Venti, Mary Walter, Jonathan Krakoff, Marie S Thearle
OBJECTIVE: This study sought to understand how the dietary source of carbohydrates, either high-fructose corn syrup (HFCS) or complex carbohydrates, affects energy expenditure (EE) measures, appetitive sensations, and hormones during 24 hours of overfeeding. METHODS: Seventeen healthy participants with normal glucose regulation had 24-hour EE measures and fasting blood and 24-hour urine collection during four different 1-day diets, including an energy-balanced diet, fasting, and two 75% carbohydrate diets (5% fat) given at 200% of energy requirements with either HFCS or whole-wheat foods as the carbohydrate source...
November 28, 2017: Obesity
https://www.readbyqxmd.com/read/29191751/hippocampus-ghrelin-receptor-signaling-promotes-socially-mediated-learned-food-preference
#15
Ted M Hsu, Emily E Noble, David J Reiner, Clarissa M Liu, Andrea N Suarez, Vaibhav R Konanur, Matthew R Hayes, Scott E Kanoski
Social cues are potent regulators of feeding behavior, yet the neurobiological mechanisms through which social cues influence food intake are poorly understood. Here we investigate the hypothesis that the appetite-promoting gut-derived hormone, ghrelin, signals in the hippocampus to promote learned social aspects of feeding behavior. We utilized a procedure known as 'social transmission of food preference' (STFP) in which rats ('Observers') experience a social interaction with another rat ('Demonstrators') that recently consumed flavored/scented chow...
November 27, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29183324/novel-essential-amino-acid-supplements-enriched-with-l-leucine-facilitate-increased-protein-and-energy-intakes-in-older-women-a-randomised-controlled-trial
#16
Theocharis Ispoglou, Kevin Deighton, Roderick Fgj King, Helen White, Matthew Lees
BACKGROUND: Inadequate protein intake (PI), containing a sub-optimal source of essential amino acids (EAAs), and reduced appetite are contributing factors to age-related sarcopenia. The satiating effects of dietary protein per se may negatively affect energy intake (EI), thus there is a need to explore alternative strategies to facilitate PI without compromising appetite and subsequent EI. METHODS: Older women completed two experiments (EXP1 and EXP2) where they consumed either a Bar (565 kJ), a Gel (477 kJ), both rich in EAAs (7...
November 28, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/29181895/body-composition-appetite-related-hormones-adipocytokines-and-heart-failure-in-adult-patients-with-congenital-heart-disease-a-preliminary-study
#17
Yumi Shiina, Tomoaki Murakami, Noriko Matsumoto, Daisuke Okamura, Yuta Takahashi, Yosuke Nishihata, Nobuyuki Komiyama, Koichiro Niwa
OBJECTIVES: To assess body composition and relationships among body composition, appetite-related hormones, adipocytokines, and heart failure (HF) in adult patients with congenital heart disease (CHD). PATIENTS: This prospective study enrolled 46 consecutive adult patients with CHD and 12 age-matched healthy controls. The patients and control subjects were divided into four groups: 13 patients with Fontan circulation (group A), 16 patients with cyanosis (group B), 17 patients who previously underwent biventricular repair (group C), and 12 age-matched healthy controls...
November 27, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/29174819/considering-sex-differences-in-the-cognitive-controls-of-feeding
#18
Camille H Sample, Terry L Davidson
Women are disproportionately affected by obesity, and obesity increases women's risk of developing dementia more so than men. Remarkably little is known about how females make decisions about when and how much to eat. Research in animal models with males supports a framework in which previous experiences with external food cues and internal physiological energy states, and the ability to retrieve memories of the consequences of eating, determines subsequent food intake. Additional evidence indicates that consumption of a high-fat, high-sugar diet interferes with hippocampal-dependent mnemonic processes that operate to suppress eating, such as in situations of satiety...
November 22, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29170989/modeling-energy-intake-and-body-weight-effects-of-a-long-acting-amylin-analogue
#19
Annika Brings, Jens Markus Borghardt, Jolanta Skarbaliene, Tamara Baader-Pagler, Maria A Deryabina, Wolfgang Rist, Stefan Scheuerer
The inhibitory effect of anti-obesity drugs on energy intake (EI) is counter-acted by feedback regulation of the appetite control circuit leading to drug tolerance. This complicates the design and interpretation of EI studies in rodents that are used for anti-obesity drug development. Here, we investigated a synthetic long-acting analogue of the appetite-suppressing peptide hormone amylin (LAMY) in lean and diet-induced obese (DIO) rats. EI and body weight (BW) were measured daily and LAMY concentrations in plasma were assessed using defined time points following subcutaneous administration of the LAMY at different dosing regimens...
November 23, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/29158344/effects-of-walking-in-water-on-gut-hormone-concentration-and-appetite-comparison-with-walking-on-land
#20
Shin-Ya Ueda, Hidehiro Nakahara, Eriko Kawai, Tatsuya Usui, Shintaro Tsuji, Tadayoshi Miyamoto
The effects of water exercise on gut hormone levels and appetite currently remain unclear. The aim of the present study was to investigate the effects of treadmill walking in water on gut hormone levels and appetite. Thirteen men (mean±S.D. age: 21.6±2.2 years, body mass index: 22.7±2.8 kg/m2, peak oxygen uptake (VO2peak): 49.8±7.8 ml/kg per min) participated in the walking in water and on land challenge. During the study period, ratings of subjective feelings of hunger, fullness, satiety, and motivation to eat were reported on a 100-mm visual analogue scale...
November 20, 2017: Endocrine Connections
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