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Intact Vagal Innervation and Glucagon-like Peptide-1 (GLP-1) Effects
The Significance of Intact Vagal Innervation for the GLP-1 Induced Inhibition of Gastric Emptying, Appetite and Food Intake
The aim of this study is to investigate the role of transmission via the vagal nerve for the effect of Glucagon-like peptide-1 (GLP-1) in respect to gastric emptying, appetite and food intake.
The hypothesis is that a great deal of the effects of GLP-1 is mediated via the nervous system and for this reason the researchers will investigate individuals with and without intact nervous supply.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Inschrijving (Verwacht)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Copenhagen
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Hellerup, Copenhagen, Denemarken, 2900
- Department of Internal Medicine F' laboratory
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- truncal vagotomy
- normal hemoglobin
- informed consent
- Age, gender and weight matched controls
- normal hemoglobin
- informed consent
Exclusion Criteria:
- type 1 diabetes mellitus or type 2 diabetes mellitus
- body mass index > 30 kg/m2
- inflammatory bowel disease
- intestinal resection
- nephropathy (serum creatinine > 150 µM and/or albuminuria)
- liver disease (ALAT and/or ASAT > 2 x normal value)
- treatment with medicine which cannot be paused for 12 hours
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Fundamentele wetenschap
- Toewijzing: Niet-gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
---|---|
Experimenteel: Vago
Truncally vagotomized subjects (due to duodenal ulcer operation)
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1.2 pmol/kg/min GLP-1 will be infused intravenously during the four hour meal test (100 g Ny NAN1 and 1.5 g paracetamol dissolved in 300 ml water) ingested over 10 minutes. After four hours an ad libitum meal will be supplied
Andere namen:
Saline (isotonic NaCl) will be infused intravenously during the four hour meal test (100 g Ny NAN1 and 1.5 g paracetamol dissolved in 300 ml water) ingested over 10 minutes. After four hours an ad libitum meal will be supplied
Andere namen:
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Experimenteel: Cardia
truncally vagotomized subjects (due to esophagus resection)
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1.2 pmol/kg/min GLP-1 will be infused intravenously during the four hour meal test (100 g Ny NAN1 and 1.5 g paracetamol dissolved in 300 ml water) ingested over 10 minutes. After four hours an ad libitum meal will be supplied
Andere namen:
Saline (isotonic NaCl) will be infused intravenously during the four hour meal test (100 g Ny NAN1 and 1.5 g paracetamol dissolved in 300 ml water) ingested over 10 minutes. After four hours an ad libitum meal will be supplied
Andere namen:
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Experimenteel: Healthy controls
Healthy control subjects
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1.2 pmol/kg/min GLP-1 will be infused intravenously during the four hour meal test (100 g Ny NAN1 and 1.5 g paracetamol dissolved in 300 ml water) ingested over 10 minutes. After four hours an ad libitum meal will be supplied
Andere namen:
Saline (isotonic NaCl) will be infused intravenously during the four hour meal test (100 g Ny NAN1 and 1.5 g paracetamol dissolved in 300 ml water) ingested over 10 minutes. After four hours an ad libitum meal will be supplied
Andere namen:
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
Gastric emptying
Tijdsspanne: four hours
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Gastric emptying will be assessed using a liquid meal with 1.5 g paracetamol added and continuous blood sampling for measuring paracetamol concentration during four hours
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four hours
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Appetite
Tijdsspanne: four hours
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Hunger, satiation, and fullness will be assessed before, during and after a liquid meal with 1.5 g paracetamol added using a visual analog scale (VAS)
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four hours
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Food intake
Tijdsspanne: five hours
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After the liquid meal test, the volunteers will be offered a meal to assessed their ad libitum food intake
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five hours
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
plasma glucose
Tijdsspanne: four hours
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four hours
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serum insulin and c-peptide
Tijdsspanne: four hours
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four hours
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plasma glucagon
Tijdsspanne: four hours
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four hours
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plasma GLP-1
Tijdsspanne: four hours
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four hours
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endogenous GLP-1
Tijdsspanne: four hours
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endogenous GLP-1 will be assessed as plasma GLP-2 concentration
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four hours
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plasma GIP
Tijdsspanne: four hours
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four hours
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serum paracetamol
Tijdsspanne: four hours
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four hours
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Medewerkers en onderzoekers
Medewerkers
Onderzoekers
- Hoofdonderzoeker: Astrid Plamboeck, M.D., University Hospital, Gentofte, Copenhagen
- Studie directeur: Tina Vilsbøll, M.D., University Hospital, Gentofte, Copenhagen
Publicaties en nuttige links
Algemene publicaties
- Wewer Albrechtsen NJ, Hartmann B, Veedfald S, Windelov JA, Plamboeck A, Bojsen-Moller KN, Idorn T, Feldt-Rasmussen B, Knop FK, Vilsboll T, Madsbad S, Deacon CF, Holst JJ. Hyperglucagonaemia analysed by glucagon sandwich ELISA: nonspecific interference or truly elevated levels? Diabetologia. 2014 Sep;57(9):1919-26. doi: 10.1007/s00125-014-3283-z. Epub 2014 Jun 3.
- Plamboeck A, Veedfald S, Deacon CF, Hartmann B, Wettergren A, Svendsen LB, Meisner S, Hovendal C, Vilsboll T, Knop FK, Holst JJ. The effect of exogenous GLP-1 on food intake is lost in male truncally vagotomized subjects with pyloroplasty. Am J Physiol Gastrointest Liver Physiol. 2013 Jun 15;304(12):G1117-27. doi: 10.1152/ajpgi.00035.2013. Epub 2013 Apr 18.
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Verwacht)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
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Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
- Truncated mealtest (AP)
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
Klinische onderzoeken op GLP-1
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Ludwig-Maximilians - University of MunichGerman Research Foundation; Merck Sharp & Dohme LLCVoltooidHyperglykemieDuitsland
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Zealand PharmaProfil Institut für Stoffwechselforschung GmbHWervingVeiligheid en verdraagzaamheidDuitsland
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University of CopenhagenGentofte Hospital, DenmarkWervingIncretine-effectDenemarken
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Zealand PharmaVoltooid
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University of Mississippi Medical CenterWervingDiabetes mellitus, type 2 | Osteoporose, PostmenopauzaalVerenigde Staten
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University of ChicagoVoltooid
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Mayo ClinicMerck Sharp & Dohme LLCVoltooid
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University of CopenhagenThe Danish Medical Research CouncilVoltooid
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Dasman Diabetes InstituteWervingDiabetes mellitus, type 2Koeweit
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Aarhus University Hospital SkejbyAarhus University Hospital; University of AarhusVoltooidHartfalen, congestiefDenemarken