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https://www.readbyqxmd.com/read/28636933/drosophila-neuropeptide-f-signaling-independently-regulates-feeding-and-sleep-wake-behavior
#1
Brian Y Chung, Jennifer Ro, Sabine A Hutter, Kylie M Miller, Lakshmi S Guduguntla, Shu Kondo, Scott D Pletcher
Proper regulation of sleep-wake behavior and feeding is essential for organismal health and survival. While previous studies have isolated discrete neural loci and substrates important for either sleep or feeding, how the brain is organized to coordinate both processes with respect to one another remains poorly understood. Here, we provide evidence that the Drosophila Neuropeptide F (NPF) network forms a critical component of both adult sleep and feeding regulation. Activation of NPF signaling in the brain promotes wakefulness and adult feeding, likely through its cognate receptor NPFR...
June 20, 2017: Cell Reports
https://www.readbyqxmd.com/read/28632394/changes-in-eating-behaviors-of-children-with-obesity-in-response-to-carbohydrate-modified-and-portion-controlled-diets
#2
Shelley Kirk, Jessica G Woo, Bonnie Brehm, Stephen R Daniels, Brian E Saelens
OBJECTIVE: This study's objective was to determine whether two distinct carbohydrate (CHO)-modified diets and a standard portion-controlled (PC) diet differentially impacted children's eating behaviors and whether eating behavior scores predicted lower BMI among children with obesity. METHODS: Children (n = 102) aged 7-12 years with obesity were randomly assigned to a 12-month intervention of a low-carbohydrate (LC), reduced glycemic load (RGL), or standard PC diet...
June 20, 2017: Childhood Obesity
https://www.readbyqxmd.com/read/28632132/antagonistic-modulation-of-npy-agrp-and-pomc-neurons-in-the-arcuate-nucleus-by-noradrenalin
#3
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/28630291/global-sustainable-development-priorities-500-y-after-luther-sola-schola-et-sanitate
#4
Wolfgang Lutz
Martin Luther succinctly summarized his theology in sola statements, such as sola scriptura, viewing the Bible (scriptura) as the only valid source of information about God rather than what he viewed as the extraneous, corrupting church doctrine of the time. As a secular side effect of this focus on individual reading skills, the Protestant territories were the first to acquire high literacy rates, which subsequently fostered health, economic growth, and good governance. Here I argue that a similar priority focus on empowerment of all segments of all populations through education and health (sola schola et sanitate) is needed today for sustainable development...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28626944/food-insecurity-and-eating-disorder-pathology
#5
Carolyn Black Becker, Keesha Middlemass, Brigitte Taylor, Clara Johnson, Francesca Gomez
OBJECTIVE: The primary aim of this study was to investigate eating disorder (ED) pathology in those living with food insecurity. A secondary aim was to investigate whether any-reason dietary restraint, weight self-stigma, and worry increased as level of food insecurity increased. METHOD: Participants (N = 503) seeking food from food pantries completed questionnaires assessing level of food insecurity, demographics, ED pathology, dietary restraint, weight self-stigma, and worry...
June 18, 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28625709/review-and-analysis-of-physical-exercise-at-hormonal-and-brain-level-and-its-influence-on-appetite
#6
Laura Gómez Escribano, Arancha Gálvez Casas, Antonio R Escribá Fernández-Marcote, Pedro Tárraga López, Loreto Tárraga Marcos
Due to the currently growing rate of obesity, it is important to maintain good control of food intake. The main purpose of the present study is to determine the influence of physical exercise on appetite, changes in hormone concentrations, and changes in certain neuronal regions. To achieve this, a literature search was conducted using different data bases. The results show how exercise produces changes in the appetite perception, in the amount of energy intake, and in different weight-control related hormones, as well as in specific neuronal responses...
June 15, 2017: Clínica e Investigación en Arteriosclerosis
https://www.readbyqxmd.com/read/28625043/pre-and-postprandial-acylated-ghrelin-in-obese-and-normal-weight-men
#7
Sri Andarini, Ferdy Bangun Kangsaputra, Dian Handayani
BACKGROUND AND OBJECTIVES: The prevalence of obesity in Indonesia has increasing. We have assessed the relationship between plasma acylated ghrelin hormone and self-reported appetite ratings (hunger and desire to eat) in obese and normal weight men. METHODS AND STUDY DESIGN: Thirty-two men participated in an experimental study, where acylated ghrelin and self-reported appetite ratings were compared between a test group of 16 obese men and a control group of 16 men with normal body mass indices...
June 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28623163/factors-associated-with-school-lunch-consumption-reverse-recess-and-school-brunch
#8
Leah Elizabeth Chapman, Juliana Cohen, Melanie Canterberry, Thomas W Carton
BACKGROUND: While school foods have become healthier under the Healthy, Hunger Free Kids Act, research suggests there is still substantial food waste in cafeterias. It is therefore necessary to study factors that can impact food consumption, including holding recess before lunch ("reverse recess") and starting lunch periods very early or very late. OBJECTIVE: This study examined the association between the timing of recess (pre-lunch vs post-lunch recess), the timing of the lunch period, and food consumed by students at lunch...
June 14, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28622288/optimization-of-design-and-production-strategies-for-novel-adeno-associated-viral-display-peptide-libraries
#9
J Körbelin, A Hunger, M Alawi, T Sieber, M Binder, M Trepel
Libraries displaying random peptides on the surface of adeno-associated virus (AAV) are powerful tools for the generation of target-specific gene therapy vectors. However, for unknown reasons the success rate of AAV library screenings is variable and the influence of the production procedure has not been thoroughly evaluated. During library screenings, the capsid variants with the most favorable tropism are enriched over several selection rounds on a target of choice and identified by subsequent sequencing of the encapsidated viral genomes encoding the library capsids with targeting peptide insertions...
June 16, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28619719/hypothalamic-regulation-of-regionally-distinct-adult-neural-stem-cells-and-neurogenesis
#10
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/28618170/frequency-of-consuming-foods-predicts-changes-in-cravings-for-those-foods-during-weight-loss-the-pounds-lost-study
#11
John W Apolzan, Candice A Myers, Catherine M Champagne, Robbie A Beyl, Hollie A Raynor, Stephen A Anton, Donald A Williamson, Frank M Sacks, George A Bray, Corby K Martin
OBJECTIVE: Food cravings are thought to be the result of conditioning or pairing hunger with consumption of certain foods. METHODS: In a 2-year weight loss trial, subjects were randomized to one of four diets that varied in macronutrient content. The Food Craving Inventory (FCI) was used to measure cravings at baseline and at 6 and 24 months. Food intake was also measured at those time points. To measure free-living consumption of food items measured in the FCI, items on the FCI were matched to the foods consumed from the food intake assessments...
June 15, 2017: Obesity
https://www.readbyqxmd.com/read/28616995/the-hippocampus-and-the-regulation-of-human-food-intake
#12
Richard J Stevenson, Heather M Francis
Human and animal data suggest that the hippocampus plays certain roles in regulating food intake. However, its actual role may be far broader than currently envisaged, a claim suggested by the centrality of the hippocampus to so many aspects of human/animal cognition. Understanding these ingestion-related functions is especially significant. This is because some degree of hippocampal impairment may be quite common, resulting for example from a Western-style diet, insomnia, diabetes, and depression-among many other causes...
June 15, 2017: Psychological Bulletin
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/28609591/obesity-and-weight-management-at-menopause
#14
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/28602023/increased-expression-of-the-interleukin-36-cytokines-in-lesions-of-hidradenitis-suppurativa
#15
Rahel Thomi, Masato Kakeda, Nikhil Yawalkar, Christoph Schlapbach, Robert E Hunger
BACKGROUND: Hidradenitis suppurativa (HS) is a recalcitrant chronic skin disease with poorly understood immunopathogenic mechanisms. Previous studies reported that the interleukin-36 (IL-36) cytokines (IL-36α, IL-36β, IL-36γ, and IL-36 receptor antagonist [IL-36RA]) are important players in the pathogenesis of psoriasis (PS). OBJECTIVE: We aim to determine whether the IL-36 cytokines are upregulated in HS patients. For this purpose, we analysed local expression and systemic levels of the IL-36 cytokines in HS patients and compared the results to healthy donors and PS patients...
June 11, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28599876/effects-of-different-musical-frequencies-on-npy-and-ghrelin-secretion-in-the-rat-hypothalamus
#16
Cristina Russo, Antonella Russo, Rosario Gulino, Rosalia Pellitteri, Stefania Stanzani
It is known that exists a relationship between listening to music and food intake. Hypothalamus appears to integrate the orexigenic properties of a novel peptide, ghrelin (Ghre) that induces food intake through neuropeptide Y (NPY). Ghre stimulates appetite by acting on the ventral hypothalamus, which controls food intake. Ghre is secreted from the stomach and circulates in the bloodstream under fasting conditions, sending a hunger signal from the periphery to the Central Nervous System. The aim of this study was to evaluate, in the rat, the effects of different musical frequencies (432 and 440Hz) on the Ghre and NPY expression in the hypothalamic neurons through immunohistochemistry; in addition, we investigated on the different production of Ghre in the serum through Western blot assay (Wb), in relation to the body weight of animals...
June 6, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28597513/complexity-in-acid-base-titrations-multimer-formation-between-phosphoric-acids-and-imines
#17
Christian Malm, Heejae Kim, Manfred Wagner, Johannes Hunger
Solutions of Brønsted acids with bases in aprotic solvents are not only common model systems to study the fundamentals of proton transfer pathways but are also highly relevant to Brønsted acid catalysis. Despite their importance the light nature of the proton makes characterization of acid-base aggregates challenging. Here, we track such acid-base interactions over a broad range of relative compositions between diphenyl phosphoric acid and the base quinaldine in dichloromethane, by using a combination of dielectric relaxation and NMR spectroscopy...
June 8, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28597337/brain-reward-responses-to-food-stimuli-among-female-monozygotic-twins-discordant-for-bmi
#18
Stieneke Doornweerd, Eco J De Geus, Frederik Barkhof, Liselotte Van Bloemendaal, Dorret I Boomsma, Jenny Van Dongen, Madeleine L Drent, Gonneke Willemsen, Dick J Veltman, Richard G IJzerman
Obese individuals are characterized by altered brain reward responses to food. Despite the latest discovery of obesity-associated genes, the contribution of environmental and genetic factors to brain reward responsiveness to food remains largely unclear. Sixteen female monozygotic twin pairs with a mean BMI discordance of 3.96 ± 2.1 kg/m(2) were selected from the Netherlands Twin Register to undergo functional MRI scanning while watching high- and low-calorie food and non-food pictures and during the anticipation and receipt of chocolate milk...
June 8, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28596721/cannabinoid-receptor-signaling-in-central-regulation-of-feeding-behavior-a-mini-review
#19
REVIEW
Marco Koch
Cannabinoids are lipid messengers that modulate a variety of physiological processes and modify the generation of specific behaviors. In this regard, the cannabinoid receptor type 1 (CB1) represents the most relevant target molecule of cannabinoids so far. One main function of central CB1 signaling is to maintain whole body energy homeostasis. Thus, cannabinoids functionally interact with classical neurotransmitters in neural networks that control energy metabolism and feeding behavior. The promotion of CB1 signaling can increase appetite and stimulate feeding, while blockade of CB1 suppresses hunger and induces hypophagia...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28593913/excessive-weight-gain-in-exclusively-breast-fed-infants
#20
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
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