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https://www.readbyqxmd.com/read/28073779/glucose-dependent-insulinotropic-polypeptide-promotes-lipid-deposition-in-subcutaneous-adipocytes-in-obese-type-2-diabetes-patients-a-maladaptive-response
#1
Sravan K Thondam, Christina Daousi, John P H Wilding, Jens J Holst, Gulizar I Ameen, Chenjing Yang, Catherine Whitmore, Silvia Mora, Daniel J Cuthbertson
: Glucose-dependent insulinotropic polypeptide (GIP) beyond its insulinotropic effects may regulate post-prandial lipid metabolism. While the insulinotropic action of GIP is known to be impaired in type 2 diabetes mellitus (T2DM), its adipogenic effect is unknown. We hypothesised GIP is anabolic in human subcutaneous adipose tissue (SAT) promoting triacylglycerol (TAG) deposition through re-esterification of non-esterified fatty acids (NEFA) and this effect may differ according to obesity status or glucose tolerance...
January 10, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28067823/biomarkers-to-monitor-gluten-free-diet-compliance-in-celiac-patients
#2
REVIEW
María de Lourdes Moreno, Alfonso Rodríguez-Herrera, Carolina Sousa, Isabel Comino
Gluten-free diet (GFD) is the only treatment for celiac disease (CD). There is a general consensus that strict GFD adherence in CD patients leads to full clinical and histological remission accompanied by improvement in quality of life and reduced long-term complications. Despite the importance of monitoring the GFD, there are no clear guidelines for assessing the outcome or for exploring its adherence. Available methods are insufficiently accurate to identify occasional gluten exposure that may cause intestinal mucosal damage...
January 6, 2017: Nutrients
https://www.readbyqxmd.com/read/28062192/direct-effects-of-glucose-insulin-glp-1-and-gip-on-bulbospinal-neurons-in-the-rostral-ventrolateral-medulla-in-neonatal-wistar-rats
#3
Naoki Oshima, Hiroshi Onimaru, Hidehito Matsubara, Takahiro Uchida, Atsushi Watanabe, Toshihiko Imakiire, Yasuhiro Nishida, Hiroo Kumagai
Although patients with diabetes mellitus (DM) often exhibit hypertension, the mechanisms responsible for this correlation are not well known. We hypothesized that the bulbospinal neurons in the rostral ventrolateral medulla (RVLM) are affected by the levels of glucose, insulin, or incretins (glucagon like peptide-1 [GLP-1] or glucose-dependent insulinotropic peptide [GIP]) in patients with DM. To investigate whether RVLM neurons are activated by glucose, insulin, GLP-1, or GIP, we examined changes in the membrane potentials of bulbospinal RVLM neurons using whole-cell patch-clamp technique during superfusion with various levels of glucose or these hormones in neonatal Wistar rats...
January 3, 2017: Neuroscience
https://www.readbyqxmd.com/read/28055305/generation-of-a-highly-diverse-panel-of-antagonistic-chicken-monoclonal-antibodies-against-the-gip-receptor
#4
Jennifer D Könitzer, Shreya Pramanick, Qi Pan, Robert Augustin, Sebastian Bandholtz, William Harriman, Shelley Izquierdo
Raising functional antibodies against G protein-coupled receptors (GPCRs) is challenging due to their low density expression, instability in the absence of the cell membrane's lipid bilayer and frequently short extracellular domains that can serve as antigens. In addition, a particular therapeutic concept may require an antibody to not just bind the receptor, but also act as a functional receptor agonist or antagonist. Antagonizing the glucose-dependent insulinotropic polypeptide (GIP) receptor may open up new therapeutic modalities in the treatment of diabetes and obesity...
January 5, 2017: MAbs
https://www.readbyqxmd.com/read/28033038/mgo3-and-gip1-act-synergistically-for-the-maintenance-of-centromeric-cohesion
#5
Morgane Batzenschlager, Anne-Catherine Schmit, Etienne Herzog, Joerg Fuchs, Veit Schubert, Guy Houlné, Marie-Edith Chabouté
The control of genomic maintenance during S phase is crucial in eukaryotes. It involves the establishment of sister chromatid cohesion, ensuring faithful chromosome segregation, as well as proper DNA replication and repair to preserve genetic information. In animals, nuclear periphery proteins - including inner nuclear membrane proteins and nuclear pore-associated components - are key factors which regulate DNA integrity. Corresponding functional homologues are not so well known in plants which may have developed specific mechanisms due to their sessile life...
December 29, 2016: Nucleus
https://www.readbyqxmd.com/read/28027898/lower-plasma-levels-of-glucose-dependent-insulinotropic-peptide-gip-and-pancreatic-polypeptide-pp-in-patients-with-ductal-adenocarcinoma-of-the-pancreas-and-their-relation-to-the-presence-of-impaired-glucoregulation-and-weight-loss
#6
Jan Škrha, Petr Bušek, Jana Uhrová, Petr Hrabal, Klára Kmochová, Martin Laclav, Bohuš Bunganič, Přemysl Frič
BACKGROUND: The changes in gastrointestinal hormones associated with pancreatic ductal adenocarcinoma (PDAC) in patients with impaired glucoregulation have yet to be evaluated. The aim of this study was to determine plasma concentrations of selected gastrointestinal hormones in PDAC patients with and without diabetes and to compare them with levels found in Type 2 diabetic patients without cancer. METHODS: In this study we examined plasma concentrations of glucose-dependent insulinotropic peptide (GIP), glucagon-like peptide 1 (GLP-1), pancreatic polypeptide (PP), peptide YY (PYY) and neuropeptide Y (NPY), and cytokines leptin and adiponectin in 94 patients with histologically confirmed PDAC...
December 15, 2016: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28004148/an-enzymatically-stable-gip-xenin-hybrid-peptide-restores-gip-sensitivity-enhances-beta-cell-function-and-improves-glucose-homeostasis-in-high-fat-fed-mice
#7
Annie Hasib, Ming T Ng, Victor A Gault, Dawood Khan, Vadivel Parthsarathy, Peter R Flatt, Nigel Irwin
AIMS/HYPOTHESIS: Glucose-dependent insulinotropic polypeptide (GIP) and xenin, regulatory gut hormones secreted from enteroendocrine K cells, exert important effects on metabolism. In addition, xenin potentiates the biological actions of GIP. The present study assessed the actions and therapeutic utility of a (DAla(2))GIP/xenin-8-Gln hybrid peptide, in comparison with the parent peptides (DAla(2))GIP and xenin-8-Gln. METHODS: Following confirmation of enzymatic stability, insulin secretory activity of (DAla(2))GIP/xenin-8-Gln was assessed in BRIN-BD11 beta cells...
December 21, 2016: Diabetologia
https://www.readbyqxmd.com/read/28000575/-national-developments-in-emergency-departments-in-the-netherlands-numbers-and-origins-of-patients-in-the-period-from-2012-to-2015
#8
M I Gaakeer, C L van den Brand, E Gips, J M van Lieshout, R Huijsman, R Veugelers, P Patka
OBJECTIVE: Gaining insight into key figures of emergency departments (EDs) in the Netherlands and developments in these figures. DESIGN: Longitudinal survey study. METHOD: Over the period from 2012 up to and including 2015, the following key data were surveyed: number of EDs, number of ED patients, ED patients' origin, number of hospital admissions from the ED and form of cooperation between ED and a general practitioner centre (GPC). RESULTS: An average of 96% of all EDs responded...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27989917/minimally-invasive-surgery-for-the-treatment-of-pilonidal-disease-the-gips-procedure-on-2347-patients
#9
Angelo Di Castro, Francesco Guerra, Giovanni Battista Levi Sandri, Giuseppe Maria Ettorre
BACKGROUND: Pilonidal disease is a quite common chronic inflammatory disease that causes discomfort, embarrassment and absence from work or school. In line with its acquired pathogenesis, a number of surgical alternatives to conventional en bloc excision have been proposed over the last decades, yielding encouraging results. We reviewed our experience with minimally invasive sinusectomy to evaluate its safety and efficacy. METHODS: this study was a review of a prospectively maintained database of consecutive patients over a 7-year period...
October 28, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27982680/distinct-response-of-fat-and-gastrointestinal-tissue-to-glucose-in-gestational-diabetes-mellitus-and-polycystic-ovary-syndrome
#10
D Vejrazkova, O Lischkova, M Vankova, S Stanicka, J Vrbikova, P Lukasova, J Vcelak, G Vacinova, B Bendlova
Gestational diabetes mellitus (GDM) and polycystic ovary syndrome (PCOS) are distinct pathologies with impaired insulin sensitivity as a common feature. The aim of this study was to evaluate the response of fat tissue adipokines and gastrointestinal incretins to glucose load in patients diagnosed with one of the two disorders and to compare it with healthy controls. Oral glucose tolerance test (oGTT) was performed in 77 lean young women: 22 had positive history of GDM, 19 were PCOS patients, and 36 were healthy controls...
December 16, 2016: Physiological Research
https://www.readbyqxmd.com/read/27974210/downregulation-of-a-gpcr-by-%C3%AE-arrestin2-mediated-switch-from-an-endosomal-to-a-tgn-recycling-pathway
#11
Nazish Abdullah, Muheeb Beg, David Soares, Jeremy S Dittman, Timothy E McGraw
Glucose-dependent insulinotropic polypeptide (GIP) is an incretin hormone involved in nutrient homeostasis. GIP receptor (GIPR) is constitutively internalized and returned to the plasma membrane, atypical behavior for a G-protein-coupled receptor (GPCR). GIP promotes GIPR downregulation from the plasma membrane by inhibiting recycling without affecting internalization. This transient desensitization is achieved by altered intracellular trafficking of activated GIPR. GIP stimulation induces a switch in GIPR recycling from a rapid endosomal to a slow trans-Golgi network (TGN) pathway...
December 13, 2016: Cell Reports
https://www.readbyqxmd.com/read/27957599/evaluation-of-the-biofire-filmarray%C3%A2-gastrointestinalpanel-in-a-midwestern-academic-hospital
#12
C N Murphy, R C Fowler, P C Iwen, P D Fey
The BioFire FilmArray® Gastrointestinal Panel (GIP) was implemented to replace traditional stool culture and enzyme immunoassay (EIA) testing for stool pathogens. The purpose of this study was to evaluate the detection rate, incidence of coinfection, and culture recovery rate of gastrointestinal (GI) pathogens detected by the GIP over a 1-year period. A total of 2257 stools collected from January to December 2015 were tested using the GIP. Clostridium difficile colonization was also evaluated by an antigen/toxin EIA and confirmatory polymerase chain reaction (PCR)...
December 12, 2016: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/27927266/enzymatically-modified-starch-up-regulates-expression-of-incretins-and-sodium-coupled-monocarboxylate-transporter-in-jejunum-of-growing-pigs
#13
B U Metzler-Zebeli, R Ertl, D Grüll, T Molnar, Q Zebeli
Dietary effects on the host are mediated via modulation of the intestinal mucosal responses. The present study investigated the effect of an enzymatically modified starch (EMS) product on the mucosal expression of genes related to starch digestion, sugar and short-chain fatty acid (SCFA) absorption and incretins in the jejunum and cecum in growing pigs. Moreover, the impact of the EMS on hepatic expression of genes related to glucose and lipid metabolism, and postprandial serum metabolites were assessed. Barrows (n=12/diet; initial BW 29 kg) were individually fed three times daily with free access to a diet containing either EMS or waxy corn starch as control (CON) for 10 days...
December 8, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27924129/interplay-of-genes-in-plant-pathogen-interactions-in-planta-expression-and-docking-studies-of-a-beta-1-3-glucanase-gene-from-piper-colubrinum-and-a-glucanase-inhibitor-gene-from-phytophthora-capsici
#14
K Johnson George, O Rosana Babu, I P Vijesh Kumar, J Santhosh Eapen, M Anandaraj
Oomycete pathogen, Phytophthora capsici is devastating for black pepper (Piper nigrum L.) and causes foot rot disease at all stages of plant growth. Phytophthora secretes a glucanase inhibitor protein (GIP), which is capable of inhibiting defence proteins like endoglucanases. In this particular study Quantitative PCR analysis, molecular docking studies and analysis of sequences of Glucanase inhibitor protein and beta-1,3 glucanse genes were done mainly depending on the data derived from Phytophthora capsici whole genome sequencing and Piper colubrinum RNA-sequencing (RNA-Seq)...
October 2016: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/27913104/d-ala2-gip-glu-pal-is-neuroprotective-in-a-chronic-parkinson-s-disease-mouse-model-and-increases-bndf-expression-while-reducing-neuroinflammation-and-lipid-peroxidation
#15
Yanwei Li, WeiZhen Liu, Lin Li, Christian Hölscher
Type 2 diabetes mellitus (T2DM) is a risk factor for Parkinson's disease (PD). Therefore, treatment to improve insulin resistance in T2DM may be useful for PD patients. Glucose dependent insulinotropic polypeptide (GIP) is a member of the incretin hormone family that can promote insulin release and improve insulin resistance. Several GIP analogues have been developed as potential treatments for T2DM. We had shown previously that D-Ala2-GIP-glu-PAL, a novel long-acting GIP analogue, can play a neuroprotective role in the PD mouse model induced by acute MPTP injection...
November 29, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27898183/effect-of-exenatide-on-postprandial-glucose-fluxes-lipolysis-and-%C3%A3-cell-function-in-nondiabetic-morbidly-obese-patients
#16
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 (HIR) and adipose tissue insulin resistance (AT-IR) and insulin sensitivity (IS)...
November 29, 2016: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/27894746/roux-en-y-gastric-bypass-versus-calorie-restriction-support-for-surgery-per-se-as-the-direct-contributor-to-altered-responses-of-insulin-and-incretins-to-a-mixed-meal
#17
Johan Berggren, Andreas Lindqvist, Jan Hedenbro, Leif Groop, Nils Wierup
OBJECTIVE: To study the immediate effects of Roux-en-Y gastric bypass (RYGB) on glucose homeostasis, insulin, and incretin responses to mixed-meal tests compared with the effects of calorie restriction (CR). SETTING: University-affiliated bariatric surgery clinic. BACKGROUND: RYGB induces remission of type 2 diabetes (T2D) long before significant weight loss occurs. The time course and underlying mechanisms of this remission remain enigmatic...
September 28, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/27892685/gut-a-key-player-in-the-pathogenesis-of-type-2-diabetes
#18
Giovanna Muscogiuri, Giancarlo Balercia, Luigi Barrea, Angelo Cignarelli, Francesco Giorgino, Jens J Holst, Daniela Laudisio, Francesco Orio, Giacomo Tirabassi, Annamaria Colao
The gut regulates glucose and energy homeostasis; thus, the presence of ingested nutrients into the gut activates sensing mechanisms that affect both glucose homeostasis and regulate food intake. Increasing evidence suggest that gut may also play a key role in the pathogenesis of type 2 diabetes which may be related to both the intestinal microbiological profile and patterns of gut hormones secretion. Intestinal microbiota includes trillions of microorganisms but its composition and function may be adversely affected in type 2 diabetes...
November 28, 2016: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/27836729/discovering-recurring-patterns-in-electrophysiological-recordings
#19
Bart Gips, Ali Bahramisharif, Eric Lowet, Mark J Roberts, Peter de Weerd, Ole Jensen, Jan van der Eerden
BACKGROUND: Fourier-based techniques are used abundantly in the analysis of electrophysiological data. However, these techniques are of limited value when the signal of interest is non-sinusoidal or non-periodic. NEW METHOD: We present sliding window matching (SWM): a new data-driven method for discovering recurring temporal patterns in electrophysiological data. SWM is effective in detecting recurring but unknown patterns even when they appear non-periodically...
January 1, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27811952/lipid-stimulation-of-fatty-acid-sensors-in-the-human-duodenum-relationship-with-gastrointestinal-hormones-bmi-and-diet
#20
N Cvijanovic, N J Isaacs, C K Rayner, C Feinle-Bisset, R L Young, T J Little
BACKGROUND AND AIMS: The small intestinal free fatty acid (FFA) sensors, FFA receptor 1 (FFAR1), FFAR4, G-protein receptor 119 (GPR119) and cluster of differentiation-36 (CD36), mediate the fat-induced release of gastrointestinal (GI) hormones. We investigated whether expression of duodenal FFA sensors in humans was (i) altered by intraduodenal (ID) lipid infusion, (ii) disordered in overweight or obese individuals, (iii) related to lipid-induced GI hormone secretion or (iv) affected by habitual dietary patterns...
November 4, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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