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Glp1 obesity

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https://www.readbyqxmd.com/read/29896801/high-fat-diet-induced-remission-of-diabetes-in-a-subset-of-k-atp-gof-insulin-secretory-deficient-mice
#1
Zihan Yan, Zeenat A Shyr, Manuela Fortunato, Alecia Welscher, Mariana Alisio, Michael Martino, Brian N Finck, Hannah Conway, Maria S Remedi
Chronic hyperglycemia has been proposed to cause pancreatic β-cell dysfunction and loss of β-cell mass. As in human monogenic neonatal diabetes, mice expressing KATP channel gain-of-function (GOF) mutations demonstrate deficiency in insulin secretion and develop severe diabetes. As diabetes progresses, they show loss of islet insulin content and β-cell mass, secondary consequences of glucotoxicity. Co-morbidity of chronic hyperglycemia and elevated lipids, so called glucolipotoxicity, is also crucial in the pathogenesis of diabetes...
June 12, 2018: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29887900/effect-of-fermented-camel-milk-on-glucose-metabolism-insulin-resistance-and-inflammatory-biomarkers-of-adolescents-with-metabolic-syndrome-a-double-blind-randomized-crossover-trial
#2
Zahra Fallah, Awat Feizi, Mahin Hashemipour, Roya Kelishadi
Background: This study, for the first time, aimed to assess the effects of fermented camel milk (FCM) on glycemic and inflammatory parameters related to metabolic syndrome (MetS), an aggregation of cardiometabolic risk factors, in adolescents. Materials and Methods: In a double-blind, randomized crossover trial, overweight/obese adolescents (fulfilling MetS criteria, aged 11-18 years) were randomly assigned to receive FCM 250 cc per day for an 8-week period, a 4-week washout, and then diluted cow's yogurt (DCY) 250 cc/day for another 8-week period, or the reverse sequence...
2018: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/29851973/time-course-metabolome-of-roux-en-y-gastric-bypass-confirms-correlation-between-leptin-body-weight-and-the-microbiome
#3
Loqmane Seridi, Gregory C Leo, G Lynis Dohm, Walter J Pories, James Lenhard
Roux-en-Y gastric bypass (RYGB) is an effective way to lose weight and reverse type 2 diabetes. We profiled the metabolome of 18 obese patients (nine euglycemic and nine diabetics) that underwent RYGB surgery and seven lean subjects. Plasma samples from the obese patients were collected before the surgery and one week and three months after the surgery. We analyzed the metabolome in association to five hormones (Adiponectin, Insulin, Ghrelin, Leptin, and Resistin), four peptide hormones (GIP, Glucagon, GLP1, and PYY), and two cytokines (IL-6 and TNF)...
2018: PloS One
https://www.readbyqxmd.com/read/29791170/effectiveness-and-safety-of-lixisenatide-for-treatment-of-diabetes-in-the-real-world-data-from-the-monitoring-registry-in-a-real-life-cohort-in-the-czech-and-slovak-republic
#4
Martin Haluzík, Alena Adamíková, Milan Běhunčík, Marek Macko, Radka Štěpánová
INTRODUCTION: GLP1 receptor agonist lixisenatide has demonstrated its efficacy in numerous clinical trials, nevertheless its real-life effectiveness data is limited. AIM: To describe effectiveness and safety of lixisenatide in routine clinical practice in the Czech Republic and the Slovak Republic, as recorded by the Registry-Based Observational Study. METHODS: Multinational, multicenter, observational, non-interventional, 6-month prospective product registry of patients with type 2 diabetes mellitus aged > 18 years who were initiating therapy with lixisenatide...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29728598/glucagon-like-peptide-1-in-health-and-disease
#5
REVIEW
Andreas Andersen, Asger Lund, Filip K Knop, Tina Vilsbøll
In healthy individuals, the incretin hormone glucagon-like peptide 1 (GLP1) potentiates insulin release and suppresses glucagon secretion in response to the ingestion of nutrients. GLP1 also delays gastric emptying and increases satiety. In patients with type 2 diabetes mellitus (T2DM), supraphysiological doses of GLP1 normalize the endogenous insulin response during a hyperglycaemic clamp. Owing to the short plasma half-life of native GLP1, several GLP1 receptor agonists (GLP1RAs) with longer half-lives have been developed for the treatment of T2DM...
May 4, 2018: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/29704228/a-prospective-randomized-controlled-trial-of-the-metabolic-effects-of-sleeve-gastrectomy-with-transit-bipartition
#6
Fernanda R Azevedo, Sergio Santoro, Maria L Correa-Giannella, Marcos T Toyoshima, Daniel Giannella-Neto, Daniela Calderaro, Danielle M Gualandro, Pai C Yu, Bruno Caramelli
PURPOSE: To compare the effects of the sleeve gastrectomy with transit bipartition (SG + TB) procedure with standard medical therapy (SMT) in mildly obese patients with type II diabetes (T2D). METHODS: This is a prospective, randomized, controlled trial. Twenty male adults, ≤ 65 years old, with T2D, body mass index (BMI) > 28 kg/m2 and < 35 kg/m2 , and HbA1c level > 8% were randomized to SG + TB or to SMT. Outcomes were the remission in the metabolic and cardiovascular risk variables up to 24 months...
April 27, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29412812/intestinal-peptide-changes-after-bariatric-and-minimally-invasive-surgery-relation-to-diabetes-remission
#7
REVIEW
Lidia Castagneto Gissey, James Casella Mariolo, Geltrude Mingrone
Bariatric surgery is very effective in achieving and maintaining weight loss but it is also associated with improvement of obesity metabolic complications, primarily type 2 diabetes (T2D). Remission of T2D or at least a net improvement of glycemic control persists for at least 5 years. The bypass of duodenum and of the first portion of the jejunum up to the Treitz ligament as in Roux-en-Y Gastric Bypass (RYGB), or the bypass of the duodenum, the entire jejunum and the first tract of the ileum, such as in Bilio-Pancreatic Diversion (BPD), achieve different results on insulin sensitivity...
February 2018: Peptides
https://www.readbyqxmd.com/read/28698280/glycemic-control-after-metabolic-surgery-a-granger-causality-and-graph-analysis
#8
Elena Previti, Serenella Salinari, Alessandro Bertuzzi, Esmeralda Capristo, Stephan Bornstein, Geltrude Mingrone
The purpose of this study was to examine the contribution of nonesterified fatty acids (NEFA) and incretin to insulin resistance and diabetes amelioration after malabsorptive metabolic surgery that induces steatorrhea. In fact, NEFA infusion reduces glucose-stimulated insulin secretion, and high-fat diets predict diabetes development. Six healthy controls, 11 obese subjects, and 10 type 2 diabetic (T2D) subjects were studied before and 1 mo after biliopancreatic diversion (BPD). Twenty-four-hour plasma glucose, NEFA, insulin, C-peptide, glucagon-like peptide-1 (GLP-1), and gastric inhibitory polypeptide (GIP) time courses were obtained and analyzed by Granger causality and graph analyses...
November 1, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28292762/gpr40-reduces-food-intake-and-body-weight-through-glp-1
#9
Judith N Gorski, Michele J Pachanski, Joel Mane, Christopher W Plummer, Sarah Souza, Brande S Thomas-Fowlkes, Aimie M Ogawa, Adam B Weinglass, Jerry Di Salvo, Boonlert Cheewatrakoolpong, Andrew D Howard, Steven L Colletti, Maria E Trujillo
G protein-coupled receptor 40 (GPR40) partial agonists lower glucose through the potentiation of glucose-stimulated insulin secretion, which is believed to provide significant glucose lowering without the weight gain or hypoglycemic risk associated with exogenous insulin or glucose-independent insulin secretagogues. The class of small-molecule GPR40 modulators, known as AgoPAMs (agonist also capable of acting as positive allosteric modulators), differentiate from partial agonists, binding to a distinct site and functioning as full agonists to stimulate the secretion of both insulin and glucagon-like peptide-1 (GLP-1)...
July 1, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28191525/obesity-diabetes-and-the-role-of-bile-acids-in-metabolism
#10
Gerald H Tomkin, Daphne Owens
Bile acids have many activities over and above their primary function in aiding absorption of fat and fat soluble vitamins. Bile acids are synthesized from cholesterol, and thus are involved in cholesterol homeostasis. Bile acids stimulate glucagon-like peptide 1 (GLP1) production in the distal small bowel and colon, stimulating insulin secretion, and therefore, are involved in carbohydrate and fat metabolism. Bile acids through their insulin sensitising effect play a part in insulin resistance and type 2 diabetes...
June 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28133368/obesity-5-ht2a-in-glp1-mediated-weight-loss
#11
Alan Morris
No abstract text is available yet for this article.
March 2017: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/27898183/effect-of-exenatide-on-postprandial-glucose-fluxes-lipolysis-and-%C3%A3-cell-function-in-non-diabetic-morbidly-obese-patients
#12
RANDOMIZED CONTROLLED TRIAL
Stefania Camastra, Brenno Astiarraga, Andrea Tura, Silvia Frascerra, Demetrio Ciociaro, Andrea Mari, Amalia Gastaldelli, Ele Ferrannini
AIMS: To investigate the effect of exenatide on glucose disposal, insulin secretion, ß-cell function, lipolysis and hormone concentrations in non-diabetic, morbidly obese subjects under physiological conditions. MATERIALS AND METHODS: Patients were assigned to exenatide 10 µg twice daily (EXE, n = 15) or control (CT, n = 15) for 3 months. Patients received a meal test/tracer study (MTT) to measure endogenous glucose production (EGP), rate of oral glucose appearance (RaO), insulin secretion rate (ISR), ß-cell function, hepatic insulin resistance (HIR) and adipose tissue insulin resistance (AT-IR) and insulin sensitivity (IS)...
March 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/27872157/exendin-4-increases-oxygen-consumption-and-thermogenic-gene-expression-in-muscle-cells
#13
Jin-Seung Choung, Young-Sun Lee, Hee-Sook Jun
Glucagon-like peptide-1 (GLP1) has many anti-diabetic actions and also increases energy expenditure in vivo As skeletal muscle is a major organ controlling energy metabolism, we investigated whether GLP1 can affect energy metabolism in muscle. We found that treatment of differentiated C2C12 cells with exendin-4 (Ex-4), a GLP1 receptor agonist, reduced oleate:palmitate-induced lipid accumulation and triglyceride content compared with cells without Ex-4 treatment. When we examined the oxygen consumption rate (OCR), not only the basal OCR but also the OCR induced by oleate:palmitate addition was significantly increased in Ex-4-treated differentiated C2C12 cells, and this was inhibited by exendin-9, a GLP1 receptor antagonist...
February 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/27699898/adipose-tissue-regulates-insulin-sensitivity-role-of-adipogenesis-de-novo-lipogenesis-and-novel-lipids
#14
REVIEW
U Smith, B B Kahn
Obesity, the major cause of the current global epidemic of type 2 diabetes (T2D), induces insulin resistance in peripheral insulin target tissues. Several mechanisms have been identified related to cross-talk between adipose tissue, skeletal muscle and liver. These mechanisms involve both increased free fatty acid release and altered secretion of adipokines from adipose tissue. A major determinant of metabolic health is the ability of subcutaneous adipose tissue (SAT) to store excess fat rather than allowing it to accumulate in ectopic depots including liver (i...
November 2016: Journal of Internal Medicine
https://www.readbyqxmd.com/read/27689014/fibroblast-activation-protein-fap-as-a-novel-metabolic-target
#15
Miguel Angel Sánchez-Garrido, Kirk M Habegger, Christoffer Clemmensen, Cassie Holleman, Timo D Müller, Diego Perez-Tilve, Pengyun Li, Archita S Agrawal, Brian Finan, Daniel J Drucker, Matthias H Tschöp, Richard D DiMarchi, Alexei Kharitonenkov
OBJECTIVE: Fibroblast activation protein (FAP) is a serine protease belonging to a S9B prolyl oligopeptidase subfamily. This enzyme has been implicated in cancer development and recently reported to regulate degradation of FGF21, a potent metabolic hormone. Using a known FAP inhibitor, talabostat (TB), we explored the impact of FAP inhibition on metabolic regulation in mice. METHODS: To address this question we evaluated the pharmacology of TB in various mouse models including those deficient in FGF21, GLP1 and GIP signaling...
October 2016: Molecular Metabolism
https://www.readbyqxmd.com/read/27593966/inkt-cells-induce-fgf21-for-thermogenesis-and-are-required-for-maximal-weight-loss-in-glp1-therapy
#16
Lydia Lynch, Andrew E Hogan, Danielle Duquette, Chantel Lester, Alexander Banks, Katherine LeClair, David E Cohen, Abhisek Ghosh, Bing Lu, Michelle Corrigan, Darko Stevanovic, Eleftheria Maratos-Flier, Daniel J Drucker, Donal O'Shea, Michael Brenner
Adipose-resident invariant natural killer T (iNKT) cells are key players in metabolic regulation. iNKT cells are innate lipid sensors, and their activation, using their prototypic ligand α-galactosylceramide (αGalCer), induces weight loss and restores glycemic control in obesity. Here, iNKT activation induced fibroblast growth factor 21 (FGF21) production and thermogenic browning of white fat. Complete metabolic analysis revealed that iNKT cell activation induced increased body temperature, V02, VC02, and fatty acid oxidation, without affecting food intake or activity...
September 13, 2016: Cell Metabolism
https://www.readbyqxmd.com/read/27577947/gut-microbiota-of-obese-type-2-diabetic-individuals-is-enriched-in-faecalibacterium-prausnitzii-akkermansia-muciniphila-and-peptostreptococcus-anaerobius-after-weight-loss
#17
Marlene Remely, Berit Hippe, Julia Zanner, Eva Aumueller, Helmuth Brath, Alexander G Haslberger
BACKGROUND: Beside the influence of nutritional habits and reduced physical activity, metabolic syndrome is associated with alterations in the structure of gut microbiota influencing the inflammatory immune responses. Gut microbiota and microbial metabolic activities are known to affect the lipid and glucose metabolism, satiety and chronic low-grade inflammation in the metabolic syndrome. The aim of the study was to identify genera or even species affecting host metabolism in obesity and type 2 diabetes beside the common used indicator: Firmicutes/ Bacteroidetes ratio...
2016: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/27474690/endocrine-effects-of-duodenal-jejunal-exclusion-in-obese-patients-with-type-2-diabetes-mellitus
#18
Petra Kaválková, Miloš Mráz, Pavel Trachta, Jana Kloučková, Anna Cinkajzlová, Zdeňka Lacinová, Denisa Haluzíková, Marek Beneš, Zuzana Vlasáková, Václav Burda, Daniel Novák, Tomáš Petr, Libor Vítek, Terezie Pelikánová, Martin Haluzík
Duodenal-jejunal bypass liner (DJBL) is an endoscopically implantable device designed to noninvasively mimic the effects of gastrointestinal bypass operations by excluding the duodenum and proximal jejunum from the contact with ingested food. The aim of our study was to assess the influence of DJBL on anthropometric parameters, glucose regulation, metabolic and hormonal profile in obese patients with type 2 diabetes mellitus (T2DM) and to characterize both the magnitude and the possible mechanisms of its effect...
October 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27460695/vascular-effects-of-linagliptin-in-non-obese-diabetic-mice-are-glucose-independent-and-involve-positive-modulation-of-the-endothelial-nitric-oxide-synthase-enos-caveolin-1-cav-1-pathway
#19
Valentina Vellecco, Emma Mitidieri, Antonella Gargiulo, Vincenzo Brancaleone, Danilo Matassa, Thomas Klein, Franca Esposito, Giuseppe Cirino, Mariarosaria Bucci
AIM: To test the effect of linagliptin in non-obese diabetic (NOD) mice, a murine model of type 1 diabetes, to unveil a possible direct cardiovascular action of dipeptidyl peptidase 4 (DPP-4) inhibitors beyond glycaemia control. METHODS: NOD mice were grouped according to glycosuria levels as NODI: none; NODII: high; NODIII: severe. Linagliptin treatment was initiated once they reached NODII levels. Vascular reactivity was assessed ex vivo on aorta harvested from mice upon reaching NODIII level...
December 2016: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/27431457/insulin-resistance-microbiota-and-fat-distribution-changes-by-a-new-model-of-vertical-sleeve-gastrectomy-in-obese-rats
#20
Nicola Basso, Emanuele Soricelli, Lidia Castagneto-Gissey, Giovanni Casella, Davide Albanese, Francesca Fava, Claudio Donati, Kieran Tuohy, Giulia Angelini, Federica La Neve, Anna Severino, Virginia Kamvissi-Lorenz, Andrea L Birkenfeld, Stefan Bornstein, Melania Manco, Geltrude Mingrone
Metabolic surgery improves insulin resistance and type 2 diabetes possibly because of weight loss. We performed a novel sleeve gastrectomy in rats that resects ∼80% of the glandular portion, leaving the forestomach almost intact (glandular gastrectomy [GG]) and compared subsequent metabolic remodeling with a sham operation. GG did not affect body weight, at least after 10 weeks; improved hepatic and peripheral insulin sensitivity likely through increased Akt, glycogen synthase kinase 3, and AMPK phosphorylation; and reduced ectopic fat deposition and hepatic glycogen overaccumulation...
October 2016: Diabetes
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