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Satiety hormons

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https://www.readbyqxmd.com/read/29141969/cardiovascular-and-antiobesity-effects-of-resveratrol-mediated-through-the-gut-microbiota
#1
REVIEW
Julia K Bird, Daniel Raederstorff, Peter Weber, Robert E Steinert
Encouraging scientific research into the health effects of dietary bioactive resveratrol has been confounded by its rapid first-pass metabolism, which leads to low in vivo bioavailability. Preliminary studies have shown that resveratrol can modulate gut microbiota composition, undergo biotransformation to active metabolites via the intestinal microbiota, or affect gut barrier function. In rodents, resveratrol can modify the relative Bacteroidetes:Firmicutes ratio and reverse the gut microbial dysbiosis caused by a high-fat diet...
November 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/29136633/impaired-enterohormone-response-following-a-liquid-test-meal-in-gastrectomized-patients
#2
Lidia Santarpia, Maria Carmen Pagano, Iolanda Cioffi, Lucia Alfonsi, Rosario Cuomo, Giuseppe Labruna, Lucia Sacchetti, Franco Contaldo, Fabrizio Pasanisi
BACKGROUND: Total gastrectomy (TG) is responsible for symptoms or disturbance of alimentary status (changes in body weight, food intake per meal and frequency of meal per day) which, in turn are responsible for weight loss and malnutrition. The study evaluates the gut hormone responses in totally gastrectomized (TG) patients after a liquid meal test. METHODS: Twenty total gastrectomized cancer-free patients (12 M, 8 F, 56.4 ± 10.2 years, BMI 21.4 ± 2.2 kg/m2) and 10 healthy volunteers (4 M, 6 F, 48...
November 14, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29129925/the-neural-basis-of-homeostatic-and-anticipatory-thirst
#3
REVIEW
Claire Gizowski, Charles W Bourque
Water intake is one of the most basic physiological responses and is essential to sustain life. The perception of thirst has a critical role in controlling body fluid homeostasis and if neglected or dysregulated can lead to life-threatening pathologies. Clear evidence suggests that the perception of thirst occurs in higher-order centres, such as the anterior cingulate cortex (ACC) and insular cortex (IC), which receive information from midline thalamic relay nuclei. Multiple brain regions, notably circumventricular organs such as the organum vasculosum lamina terminalis (OVLT) and subfornical organ (SFO), monitor changes in blood osmolality, solute load and hormone circulation and are thought to orchestrate appropriate responses to maintain extracellular fluid near ideal set points by engaging the medial thalamic-ACC/IC network...
November 13, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/29128523/acute-effect-of-smoking-and-smoking-abstinence-on-energy-intake-and-appetite-related-hormones-blood-concentrations
#4
M Yannakoulia, C A Anastasiou, K Zachari, M Sidiropoulou, P Katsaounou, R Tenta
The effect of smoking on energy balance and the underlying mechanisms are not fully understood. The aim of the present study is to examine the acute effect of smoking and its abstinence on energy intake, subjective feelings of appetite and related hormones. Fourteen healthy smokers participated in a randomized, crossover study consisting of two trials: the Cigarette trial (participants smoked two cigarettes of their brand within 15min) and the Sham trial (they were asked to hold the cigarette as smoking, but without lighting it)...
November 8, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29112082/a-pilot-study-measuring-the-novel-satiety-hormone-pro-uroguanylin-in-adolescents-with-and-without-obesity
#5
Matthew D Di Guglielmo, Dalal Tonb, Zhaoping He, Adebowale Adeyemi, Kenneth L van Golen
OBJECTIVE: Disruption of satiety signaling may lead to increased caloric intake and obesity. Uroguanylin, the intestinal hormone, travels as a precursor to the central nervous system where it activates guanylyl cyclase C (GUCY2C) and stimulates pro-satiety neurons. Rodent studies have demonstrated that (1) GUCY2C-knockout mice over-eat and have increased weight gain vs. wild-type mice; and (2) hyper-caloric obesity diminishes uroguanylin expression. We measured circulating plasma pro-uroguanylin, along with other gastrointestinal peptides and inflammatory markers, in human adolescents with and without obesity, as a pilot study...
November 3, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29100373/chronically-high-level-of-tgfb1a-induction-causes-both-hepatocellular-carcinoma-and-cholangiocarcinoma-via-a-dominant-erk-pathway-in-zebrafish
#6
Chuan Yan, Qiqi Yang, Han-Ming Shen, Jan M Spitsbergen, Zhiyuan Gong
Liver cancers including both hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA) have increased steadily with the prevalence of non-alcoholic steatohepatitis (NASH), but the underlying mechanism for the transition from NASH to liver cancers remains unclear. Here we first employed diet-induced NASH zebrafish and found that elevated level of satiety hormone, leptin, induced overexpression of tgfb1. Then we developed tgfb1a transgenic zebrafish for inducible, hepatocyte-specific expression. Interestingly, chronically high tgfb1a induction in hepatocytes could concurrently drive both HCC and CCA...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29062587/one-week-glucose-control-via-zero-order-release-kinetics-from-an-injectable-depot-of-glucagon-like-peptide-1-fused-to-a-thermosensitive-biopolymer
#7
Kelli M Luginbuhl, Jeffrey L Schaal, Bret Umstead, Eric M Mastria, Xinghai Li, Samagya Banskota, Susan Arnold, Mark Feinglos, David D'Alessio, Ashutosh Chilkoti
Stimulation of the glucagon-like peptide-1 (GLP1) receptor is a useful treatment strategy for type 2 diabetes because of pleiotropic effects, including the regulation of islet hormones and the induction of satiety. However, the native ligand for the GLP1 receptor has a short half-live owing to enzymatic inactivation and rapid clearance. Here, we show that a subcutaneous depot formed after a single injection of GLP1 recombinantly fused to a thermosensitive elastin-like polypeptide results in zero-order release kinetics and circulation times of up to 10 days in mice and 17 days in monkeys...
2017: Nature biomedical engineering
https://www.readbyqxmd.com/read/29061367/gastrointestinal-distribution-of-chicken-gastrin-cholecystokinin-family-transcript-expression-and-response-to-short-term-nutritive-state
#8
Angus M A Reid, Ian C Dunn
The related peptide hormones cholecystokinin (CCK) and gastrin are conserved throughout vertebrate clades and implicated in energy homeostasis. CCK is generally accepted as a satiety hormone in poultry, but the role of gastrin remains poorly studied. Functional dissection of these ligands is required to characterise the molecular control of growth & satiety in the domestic chicken, for which there is an increasingly pressing mandate. There are limited descriptions of physiological distributions for the two genes in birds, and these are mostly reliant on immunohistochemistry which can prove problematic due to the shared structure of the targets...
January 1, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29042449/peptide-yy-mediates-the-satiety-effects-of-diets-enriched-with-whey-protein-fractions-in-male-rats
#9
Rizaldy C Zapata, Arashdeep Singh, Prasanth K Chelikani
Dairy proteins-whey protein, in particular-are satiating and often recommended for weight control; however, little is known about the mechanisms by which whey protein and its components promote satiety and weight loss. We used diet-induced obese rats to determine whether the hypophagic effects of diets that are enriched with whey and its fractions, lactalbumin and lactoferrin, are mediated by the gut hormone, peptide YY (PYY). We demonstrate that high protein diets that contain whey, lactalbumin, and lactoferrin decreased food intake and body weight with a concurrent increase in PYY mRNA abundance in the colon and/or plasma PYY concentrations...
October 17, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29040812/a-randomized-controlled-cross-over-study-of-appetite-related-sensations-after-consuming-snacks-made-from-buckwheat
#10
Danielle M Defries, Jay C Petkau, Terri Gregor, Heather Blewett
With the rising incidence of overweight and obesity in developed countries, there is an interest in developing food products that may aid in satiety and reduce energy intake. Buckwheat is a gluten-free edible seed that has been previously shown to induce changes in post-prandial concentrations of satiety hormones; however, subjective measures of appetite-related sensations and objective measures of energy intake at subsequent meals following buckwheat consumption have not been measured. Thirty eight healthy adults were recruited to participate in a randomized, controlled, cross-over trial with the main objective to determine if consuming snacks made from buckwheat would increase satiety and reduce energy intake compared to snacks comparable in serving size, physical characteristics, and nutrient composition...
October 17, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29025878/elevated-postoperative-endogenous-glp-1-levels-mediate-effects-of-roux-en-y-gastric-bypass-on-neural-responsivity-to-food-cues
#11
Jennifer S Ten Kulve, Dick J Veltman, Victor E A Gerdes, Liselotte van Bloemendaal, Frederik Barkhof, Carolyn F Deacon, Jens J Holst, Madeleine L Drent, Michaela Diamant, Richard G IJzerman
OBJECTIVE: It has been suggested that weight reduction and improvements in satiety after Roux-en-Y gastric bypass (RYGB) are partly mediated via postoperative neuroendocrine changes. Glucagon-like peptide-1 (GLP-1) is a gut hormone secreted after food ingestion and is associated with appetite and weight reduction, mediated via effects on the central nervous system (CNS). Secretion of GLP-1 is greatly enhanced after RYGB. We hypothesized that postoperative elevated GLP-1 levels contribute to the improved satiety regulation after RYGB via effects on the CNS...
October 12, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28964791/gut-satiety-hormones-cholecystokinin-and-glucagon-like-peptide-17-36-amide-mediate-anorexia-induction-by-trichothecenes-t-2-toxin-ht-2-toxin-diacetoxyscirpenol-and-neosolaniol
#12
Jie Zhang, Shengli Liu, Hua Zhang, Yuanyuan Li, Wenda Wu, Haibin Zhang
The food-borne trichothecene mycotoxins have been documented to cause human and animal food poisoning. Anorexia is a hallmark of the trichothecene mycotoxins-induced adverse effects. Type B trichothecenes have been previously demonstrated to elicit robust anorectic responses, and this response has been directly linked to secretion of the gut satiety hormones cholecystokinin (CCK) and glucagon-like peptide-17-36 amide (GLP-1). However, less is known about the anorectic effects and underlying mechanisms of the type A trichothecenes, including T-2 toxin (T-2), HT-2 toxin (HT-2), diacetoxyscirpenol (DAS), neosolaniol (NEO)...
November 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28961371/physiological-gut-oxygenation-alters-glp-1-secretion-from-the-enteroendocrine-cell-line-stc-1
#13
Alina Kondrashina, Dmitri Papkovsky, Linda Giblin
SCOPE: Enteroendocrine cell lines are routinely assayed in simple buffers at ∼20% oxygen to screen foods for bioactives that boost satiety hormone levels. However, in vivo, enteroendocrine cells are exposed to different phases of food digestion and function at low oxygen concentration ranging from 7.5% in the stomach to 0.5% in the colon-rectal junction. METHODS AND RESULTS: The objective of this study was to investigate the effect of physiologically relevant O2 concentrations of the gut on the production and secretion of the satiety hormone, GLP-1, from the murine enteroendocrine cell line, STC-1, in response to dairy macronutrients as they transit the gut...
September 29, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28956320/oxytocin-and-prader-willi-syndrome
#14
Anahid Kabasakalian, Casara J Ferretti, Eric Hollander
In the chapter, we explore the relationship between the peptide hormone, oxytocin (OT), and behavioral and metabolic disturbances observed in the genetic disorder Prader-Willi Syndrome (PWS). Phenotypic and genotypic characteristics of PWS are described, as are the potential implications of an abnormal OT system with respect to neural development including the possible effects of OT dysfunction on interactions with other regulatory mediators, including neurotransmitters, neuromodulators, and hormones. The major behavioral characteristics are explored in the context of OT dysfunction, including hyperphagia, impulsivity, anxiety and emotion dysregulation, sensory processing and interoception, repetitive and restrictive behaviors, and dysfunctional social cognition...
September 28, 2017: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28943102/hypothalamic-pathways-regulate-the-anorectic-action-of-p-chloro-diphenyl-diselenide-in-rats
#15
Cristiani F Bortolatto, Cristina W Nogueira, Begoña Porteiro, Mónica Imbernón, Ruben Nogueiras
Behavioral studies have suggested that (p-ClPhSe)2 elicits an anorectic-like action in rats by inducing multiple effects such as satiety-enhancing effect, malaise and specific flavor; however, the molecular mechanisms underlying its anorexigenic action remain unclarified. Here, male Sprague-Dawley rats received acute and sub-chronic intraperitoneal treatments with (p-ClPhSe)2; thereafter, in vivo and ex vivo analyses were carried out. The present study reveals that the reduction of food intake resulting from a single treatment with (p-ClPhSe)2 (1mg/kg, i...
November 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28942790/glucagon-like-peptide-1-receptor-agonists-a-class-update-for-treating-type-2-diabetes
#16
REVIEW
Julie A Lovshin
Current management options for treating type 2 diabetes are diverse. Many different classes of antidiabetes therapies are used in clinic, and several new candidates are in late-phase clinical trial. This therapeutic abundance is a windfall for patients because it facilitates individualized patient care. Evidence-based positioning of these agents is challenging, however, requiring comprehensive and balanced familiarity with each drug class. In this review, I provide a clinical update of glucagon-like peptide-1 receptor agonists (GLP-1RAs), a class of incretin-based, injectable antidiabetes therapies which improve fasting and postprandial blood glucose control through glucose-dependent pancreatic islet cell hormone secretion without significant risks for hypoglycemia...
October 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/28915571/p62-plasmid-can-alleviate-diet-induced-obesity-and-metabolic-dysfunctions
#17
Tatiana Halenova, Oleksii Savchuk, Ludmila Ostapchenko, Andrey Chursov, Nathan Fridlyand, Andrey B Komissarov, Franco Venanzi, Sergey I Kolesnikov, Albert A Sufianov, Michael Y Sherman, Vladimir L Gabai, Alexander M Shneider
A high-calorie diet (HCD) induces two mutually exacerbating effects contributing to diet-induced obesity (DIO): impaired glucose metabolism and increased food consumption. A link between the metabolic and behavioral manifestations is not well understood yet. We hypothesized that chronic inflammation induced by HCD plays a key role in linking together the two components of diet-induced pathology. Based on this hypothesis, we tested if a plasmid (DNA vaccine) encoding p62 (SQSTM1) would alleviate DIO including its metabolic and/or food consumption abnormalities...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28912031/hormones-and-the-coolidge-effect
#18
REVIEW
Elisa Ventura-Aquino, Alonso Fernández-Guasti, Raúl G Paredes
The Coolidge effect is the renewal of sexual behavior after the presentation of a novel sexual partner and possibly occurs as the result of habituation and dishabituation processes. This re-motivation to copulate is well studied in males and is commonly related to sexual satiety, which involves several neurobiological changes in steroid receptors and their mRNA expression in the CNS. On the other hand, there are few reports studying sexual novelty in females and have been limited to behavioral aspects. Here we report that the levels of rat proceptive behavior, a sign of sexual motivation, declines after 4 h of continuous mating, particularly in females that were unable to regulate the time of mating...
September 11, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28910546/could-hop-derived-bitter-compounds-improve-glucose-homeostasis-by-stimulating-the-secretion-of-glp-1
#19
Luigi Barrea, Giuseppe Annunziata, Giovanna Muscogiuri, Angela Arnone, Gian Carlo Tenore, Annamaria Colao, Silvia Savastano
Hops (Humulus lupulus L.) is by far the greatest contributors to the bitter property of beer. Over the past years, a large body of evidence demonstrated the presence of taste receptors in different locations of the oral cavity. In addition to the taste buds of the tongue, cells expressing these receptors have been identified in olfactory bulbs, respiratory and gastrointestinal tract. In the gut, the attention was mainly directed to sweet Taste Receptor (T1R) and bitter Taste Receptor (T2R) receptors. In particular, T2R has shown to modulate secretion of different gut hormones, mainly Glucagon-like Peptide 1 (GLP-1), which are involved in the regulation of glucose homeostasis and the control of gut motility, thereby increasing the sense of satiety...
September 14, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28888462/control-of-protein-digestion-under-simulated-gastrointestinal-conditions-using-biopolymer-microgels
#20
Zipei Zhang, Ruojie Zhang, David Julian McClements
Controlling the rate and extent of protein digestion within different regions of the human gastrointestinal tract (GIT) is important for regulating hormonal responses (such as hunger, satiety, and satiation) and immune responses (such as allergenicity). In this study, hydrogel beads (biopolymer microgels) were fabricated by injecting a solution of anionic alginate molecules into a solution of cationic calcium ions using a vibrating extrusion device. A model food protein (whey protein isolate, WPI) was mixed with the alginate solution prior to bead formation...
October 2017: Food Research International
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