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https://www.readbyqxmd.com/read/28647503/exogenous-glucagon-like-peptide-1-reduces-body-weight-and-cholecystokinin-8-enhances-this-reduction-in-diet-induced-obese-male-rats
#1
Thaer R Mhalhal, Martha C Washington, Kayla Newman, John C Heath, Ayman I Sayegh
The sites of action regulating meal size (MS) and intermeal interval (IMI) length by glucagon like peptide-1 (7-36) (GLP-1 (7-36)) and cholecystokinin-8 (CCK-8) reside in the areas supplied by the two major branches of the abdominal aorta, celiac and cranial mesenteric arteries. We hypothesized that infusing GLP-1 near those sites reduces body weight (BW) and adding CCK-8 to this infusion enhances the reduction. Here, we measured BW in diet-induced obese (DIO) male rats maintained and tested on normal rat chow and infused with saline, GLP-1 (0...
June 21, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28647383/impact-of-agaricus-bisporus-mushroom-consumption-on-satiety-and-food-intake
#2
Julie M Hess, Qi Wang, Clarissa Kraft, Joanne L Slavin
Previous studies on mushrooms suggest that they can be more satiating than meat, but this effect has not been studied with protein-matched amounts. The objective of this study was to assess the differences with satiety and ten-day food intake between A. bisporus mushrooms (226 g) and meat (28 g) in a randomized open-label crossover study. Thirty-two healthy participants (17 women, 15 men) consumed two servings of mushrooms or meat for ten days. On the first day, fasted participants consumed protein-matched breakfasts...
June 21, 2017: Appetite
https://www.readbyqxmd.com/read/28647001/gastric-bypass-surgery-stimulates-the-dormant-gut-brain-axis-in-obesity
#3
Stephanie P B Caligiuri, Paul J Kenny
To truly reduce the rates of chronic kidney disease, a root cause of kidney damage, obesity, must be targeted. Weight loss is often unsustainable because imbalances in satiety regulators are frequently not addressed to ensure maintenance of weight loss. In a recent study, gastric bypass surgery rebalanced satiety signals through resensitization of the gut-brain axis in obesity. This research may lead to noninvasive strategies to reduce obesity and obesity-related kidney disease.
July 2017: Kidney International
https://www.readbyqxmd.com/read/28645777/increased-food-intake-after-starvation-enhances-sleep-in-drosophila-melanogaster
#4
Josue M Regalado, McKenna B Cortez, Jeremy Grubbs, Jared A Link, Alexander van der Linden, Yong Zhang
Feeding and sleep are highly conserved, interconnected behaviors essential for survival. Starvation has been shown to potently suppress sleep across species; however, whether satiety promotes sleep is still unclear. Here we use the fruit fly, Drosophila melanogaster, as a model organism to address the interaction between feeding and sleep. We first monitored the sleep of flies that had been starved for 24 h and found that sleep amount increased in the first 4 h after flies were given food. Increased sleep after starvation was due to an increase in sleep bout number and average sleep bout length...
June 13, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28645751/psychometric-evaluation-of-the-german-version-of-the-intuitive-eating-scale-2-in-a-community-sample
#5
Ulrike Alexandra Ruzanska, Petra Warschburger
Intuitive eating is based on a strong physical connection with the body, aligned to internal cues of hunger and satiety, and a low preoccupation with food. The aim of this study was to provide a German version of the Intuitive Eating Scale-2 (IES-2) and to examine its psychometric properties with data collected from 532 participants aged 18-91 years. The IES-2 was translated into German following the World Health Organization guidelines (2016). Cronbach's alpha as a measure of internal consistency was .89 for the IES-2 total score, as well as ...
June 20, 2017: Appetite
https://www.readbyqxmd.com/read/28640214/a-pilot-randomized-cross-over-trial-to-examine-the-effect-of-kiwifruit-on-satiety-and-measures-of-gastric-comfort-in-healthy-adult-males
#6
Alison Wallace, Sarah Eady, Lynley Drummond, Duncan Hedderley, Juliet Ansell, Richard Gearry
'Hayward' kiwifruit anecdotally are associated with improved gastrointestinal comfort following the consumption of high protein meals, possibly because of the presence of a protease enzyme, actinidin. The study aimed to use SmartPill™ technology to investigate the acute effect of kiwifruit with actinidin (Actinidia chinensis var. deliciosa 'Hayward') and kiwifruit without actinidin (A. chinensis var. chinensis 'Hort16A') on digestion of a large protein meal. Ten healthy male subjects were recruited. The participants attended the clinic three times, having fasted overnight...
June 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28633506/role-of-glucagon-like-peptide-1and-gastric-inhibitory-peptide-in-anorexia-induction-following-oral-exposure-to-the-trichothecene-mycotoxin-deoxynivalenol-vomitoxin
#7
Hui Jia, Wen-Da Wu, Xi Lu, Jie Zhang, Cheng-Hua He, Hai-Bin Zhang
Deoxynivalenol (DON), which is a Type B trichothecene mycotoxin produced by Fusarium, frequently contaminates cereal staples, such as wheat, barley and corn. DON threatens animal and human health by suppressing food intake and impairing growth. While anorexia induction in mice exposed to DON has been linked to the elevation of the satiety hormones cholecystokinin (CCK) and peptide YY3-36(PYY3-36) in plasma, the effects of DON on the release of other satiety hormones, such as glucagon-like peptide-1 (GLP-1) and gastric inhibitory peptide (GIP), have not been established...
June 19, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28632997/epidemiology-of-obesity-and-pharmacologic-treatment-options
#8
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/28632132/antagonistic-modulation-of-npy-agrp-and-pomc-neurons-in-the-arcuate-nucleus-by-noradrenalin
#9
Lars Paeger, Ismene Karakasilioti, Janine Altmüller, Peter Frommolt, Jens Brüning, Peter Kloppenburg
In the arcuate nucleus of the hypothalamus (ARH) satiety signaling (anorexigenic) pro-opiomelanocortin (POMC)-expressing and hunger signaling (orexigenic) agouti-related peptide (AgRP)-expressing neurons are key components of the neuronal circuits that control food intake and energy homeostasis. Here, we assessed whether the catecholamine noradrenalin directly modulates the activity of these neurons in mice. Perforated patch clamp recordings showed that noradrenalin changes the activity of these functionally antagonistic neurons in opposite ways, increasing the activity of the orexigenic NPY/AgRP neurons and decreasing the activity of the anorexigenic POMC neurons...
June 20, 2017: ELife
https://www.readbyqxmd.com/read/28625227/a-brief-review-of-salient-factors-influencing-adult-eating-behaviour
#10
Christine Emilien, James H Hollis
A better understanding of the factors that influence eating behaviour is of importance as our food choices are associated with the risk of developing chronic diseases such as obesity, CVD, type 2 diabetes or some forms of cancer. In addition, accumulating evidence suggests that the industrial food production system is a major contributor to greenhouse gas emission and may be unsustainable. Therefore, our food choices may also contribute to climate change. By identifying the factors that influence eating behaviour new interventions may be developed, at the individual or population level, to modify eating behaviour and contribute to society's health and environmental goals...
June 19, 2017: Nutrition Research Reviews
https://www.readbyqxmd.com/read/28623340/adenovirus-mediated-suppression-of-hypothalamic-glucokinase-affects-feeding-behavior
#11
Romina María Uranga, Carola Millán, María José Barahona, Antonia Recabal, Magdiel Salgado, Fernando Martinez, Patricio Ordenes, Roberto Elizondo-Vega, Fernando Sepúlveda, Elena Uribe, María de Los Ángeles García-Robles
Glucokinase (GK), the hexokinase involved in glucosensing in pancreatic β-cells, is also expressed in arcuate nucleus (AN) neurons and hypothalamic tanycytes, the cells that surround the basal third ventricle (3V). Several lines of evidence suggest that tanycytes may be involved in the regulation of energy homeostasis. Tanycytes have extended cell processes that contact the feeding-regulating neurons in the AN, particularly, agouti-related protein (AgRP), neuropeptide Y (NPY), cocaine- and amphetamine-regulated transcript (CART) and proopiomelanocortin (POMC) neurons...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28619719/hypothalamic-regulation-of-regionally-distinct-adult-neural-stem-cells-and-neurogenesis
#12
Alex Paul, Zayna Chaker, Fiona Doetsch
Neural stem cells (NSCs) in specialized niches in the adult mammalian brain generate neurons throughout life. NSCs in the adult mouse ventricular-subventricular zone (V-SVZ) exhibit a regional identity, and depending on their location, generate distinct olfactory bulb interneuron subtypes. Here we show that the hypothalamus, a brain area regulating physiological states, provides long-range regionalized input to the V-SVZ niche and can regulate specific NSC subpopulations. Hypothalamic proopiomelanocortin (POMC) neurons selectively innervate the anterior ventral V-SVZ and promote the proliferation of Nkx2...
June 15, 2017: Science
https://www.readbyqxmd.com/read/28614299/homeostatic-circuits-selectively-gate-food-cue-responses-in-insular-cortex
#13
Yoav Livneh, Rohan N Ramesh, Christian R Burgess, Kirsten M Levandowski, Joseph C Madara, Henning Fenselau, Glenn J Goldey, Veronica E Diaz, Nick Jikomes, Jon M Resch, Bradford B Lowell, Mark L Andermann
Physiological needs bias perception and attention to relevant sensory cues. This process is 'hijacked' by drug addiction, causing cue-induced cravings and relapse. Similarly, its dysregulation contributes to failed diets, obesity, and eating disorders. Neuroimaging studies in humans have implicated insular cortex in these phenomena. However, it remains unclear how 'cognitive' cortical representations of motivationally relevant cues are biased by subcortical circuits that drive specific motivational states. Here we develop a microprism-based cellular imaging approach to monitor visual cue responses in the insular cortex of behaving mice across hunger states...
June 14, 2017: Nature
https://www.readbyqxmd.com/read/28611698/improving-assessment-of-the-spectrum-of-reward-related-eating-the-red-13
#14
Ashley E Mason, Uku Vainik, Michael Acree, A Janet Tomiyama, Alain Dagher, Elissa S Epel, Frederick M Hecht
A diversity of scales capture facets of reward-related eating (RRE). These scales assess food cravings, uncontrolled eating, addictive behavior, restrained eating, binge eating, and other eating behaviors. However, these scales differ in terms of the severity of RRE they capture. We sought to incorporate the items from existing scales to broaden the 9-item Reward-based Eating Drive scale (RED-9; Epel et al., 2014), which assesses three dimensions of RRE (lack of satiety, preoccupation with food, and lack of control over eating), in order to more comprehensively assess the entire spectrum of RRE...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28610906/a-walnut-containing-meal-had-similar-effects-on-early-satiety-cck-and-pyy-but-attenuated-the-postprandial-glp-1-and-insulin-response-compared-to-a-nut-free-control-meal
#15
Cheryl L Rock, Shirley W Flatt, Hava-Shoshana Barkai, Bilge Pakiz, Dennis D Heath
Regular nut consumption is associated with lower adiposity and reduced weight gain in adulthood. Walnut feeding studies have observed minimal effect on body weight despite potential additional energy intake. Several mechanisms may explain why consuming nuts promotes weight control, including increased early phase satiety, possibly reflected in postprandial response of gastrointestinal and pancreatic peptides hypothesized to affect appetite. The purpose of this study was to compare postprandial insulin, glucagon and gastrointestinal peptide response and satiety following a meal with ∼54% of energy from walnuts or cream cheese, using a within-subject crossover study design in overweight/obese adults (N = 28)...
June 10, 2017: Appetite
https://www.readbyqxmd.com/read/28606564/no-influence-of-carbonation-on-glycemic-response-gastric-emptying-and-satiety-of-sweetened-drinks
#16
Evelyn Rou Lin Lau, Christiani Jeyakumar Henry
OBJECTIVE: The aim of this study was to examine the effect of carbonation of sweetened beverages on glycemic response, gastric emptying, and satiety. METHODS: After an overnight fast, 15 healthy individuals (6 women, 9 men) consumed a 500 mL beverage containing 50 g glucose that was noncarbonated (NC), low carbonated (LC), or high carbonated (HC) at a standardized rate of consumption (100 mL/min). Blood glucose was measured at baseline and at 15, 30, 45, 60, 90, and 120 min after beverage consumption...
July 2017: Nutrition
https://www.readbyqxmd.com/read/28598896/assessing-pathophysiology-of-cancer-anorexia
#17
Alessandro Laviano, Angela Koverech, Marilia Seelaender
PURPOSE OF REVIEW: Cancer anorexia is a negative prognostic factor and is broadly defined as the loss of the interest in food. However, multiple clinical domains contribute to the phenotype of cancer anorexia. The characterization of the clinical and molecular pathophysiology of cancer anorexia may enhance the efficacy of preventive and therapeutic strategies. RECENT FINDINGS: Clinical trials showed that cancer anorexia should be considered as an umbrella encompassing different signs and symptoms contributing to appetite disruption in cancer patients...
June 8, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/28593913/excessive-weight-gain-in-exclusively-breast-fed-infants
#18
Carola Saure, Marisa Armeno, Consuelo Barcala, Vanesa Giudici, Carmen Silvia Mazza
BACKGROUND: Breastfeeding is recommended as the best source of nutrition in the first months of life and observational studies have associated exclusive breastfeeding with decreased weight gain and a protective effect against obesity in childhood. The objective of this study was to describe the characteristics of a cohort of exclusively breastfed obese infants to determine factors that may lead to this unusual weight gain. METHODS: Infants seen between 2003 and 2015 who were exclusively breastfed and showed excessive weight gain in the first year of life were followed with a focus on features of the mother, the child, feeding patterns and the presence of concomitant factors that influence nutritional status...
June 3, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28592602/cholecystokinin-responsiveness-varies-across-the-population-dependent-on-metabolic-phenotype
#19
Aditya J Desai, Maoqing Dong, Blake T Langlais, Amylou C Dueck, Laurence J Miller
Background: Cholecystokinin (CCK) is an important satiety factor, acting at type 1 receptors (CCK1Rs) on vagal afferent neurons; however, CCK agonists have failed clinical trials for obesity. We postulated that CCK1R function might be defective in such patients due to abnormal membrane composition, such as that observed in cholesterol gallstone disease.Objective: Due to the challenges in directly studying CCK1Rs relevant to appetite control, our goal was to develop and apply a method to determine the impact of a patient's own cellular environment on CCK stimulus-activity coupling and to determine whether CCK sensitivity correlated with the metabolic phenotype of a high-risk population...
June 7, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28590323/oxytocin-and-potential-benefits-for-obesity-treatment
#20
Pawel K Olszewski, Anica Klockars, Allen S Levine
PURPOSE OF REVIEW: Laboratory animal experiments have consistently shown that oxytocin causes early termination of food intake, thereby promoting a decrease in body weight in a long term. Recent studies have also assessed some of oxytocin's effects on appetite and energy balance in humans. The present study examines the findings of the key basic research and of the few clinical studies published thus far in the context of potential benefits and challenges stemming from the use of oxytocin in obese patients...
June 3, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
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