SwePub
Sök i LIBRIS databas

  Extended search

onr:"swepub:oai:DiVA.org:uu-335583"
 

Search: onr:"swepub:oai:DiVA.org:uu-335583" > Glucagon-like pepti...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Glucagon-like peptide-1 inhibits prandial gastrointestinal motility through myenteric neuronal mechanisms in humans

Halim, Md. Abdul, 1983- (author)
Uppsala universitet,Institutionen för medicinska vetenskaper,Uppsala University,Gastroenterology & Hepatology
Marie, Degerblad (author)
Karolinska Institutet,Growth and Metabolism
Magnus, Sundbom (author)
Uppsala universitet,Institutionen för kirurgiska vetenskaper,Uppsala University
show more...
Karlbom, Urban (author)
Uppsala universitet,Institutionen för kirurgiska vetenskaper
Juul Holst, Jens (author)
Dominic-Luc, Webb (author)
Uppsala universitet,Institutionen för medicinska vetenskaper,Uppsala University
Per, Hellström (author)
Uppsala universitet,Institutionen för medicinska vetenskaper,Uppsala University,Gastroenterology & Hepatology
show less...
 (creator_code:org_t)
English.
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • ContextGlucagon-like peptide-1 (GLP-1) secretion from L-cells and postprandial inhibition of gastrointestinal motility.ObjectiveInvestigate whether physiological plasma concentrations of GLP-1 can inhibit human postprandial gastrointestinal motility; determine target mechanism of GLP-1 and analogue ROSE-010 action.DesignSingle-blind parallel study.SettingUniversity research laboratory.ParticipantsHealthy volunteers investigated with antroduodenojejunal manometry. Human gastric, intestinal and colonic muscle strips.InterventionsMotility indices (MI) obtained before and during infusion of saline or GLP-1 were compared. Plasma GLP-1 and glucagon-like peptide-2 (GLP-2) measured by radioimmunoassay. Gastrointestinal muscle strips, pre-contracted with bethanechol/electric field stimulation (EFS), investigated for GLP-1- or ROSE-010-induced relaxation. GLP-1, GLP-2 and their receptors localized by immunohistochemistry. Action mechanisms studied employing exendin(9-39)amide, Lω-nitro-monomethylarginine (L-NMMA), 2´,5´-dideoxyadenosine (DDA), tetrodotoxin (TTX).Main outcome measuresHypothesize postprandial gastric relaxation induced by GLP-1, the mechanism of which intrinsic neuronally-mediated.ResultsFood intake increased MI to 6.4±0.3 (antrum), 5.7±0.4 (duodenum) and 5.9±0.2 (jejunum). GLP-1 administered intravenously raised plasma GLP-1, but not GLP-2. GLP-1 0.7 pmol/kg·min significantly suppressed MI to 4.6±0.2, 4.7±0.4 and 5.0±0.2, respectively, while 1.2 pmol/kg·min suppressed corresponding MI to 5.4±0.2, 4.4±0.3 and 5.4±0.3 (p<0.0001-0.005). GLP-1 and ROSE-010 prevented bethanechol- or EFS-induced muscle contractions (p <0.005-0.05). Inhibitory responses to GLP-1 and ROSE-10 were blocked by exendin(9-39)amide, L-NMMA, DDA or TTX (all p <0.005-0.05). GLP-1 and GLP-2 were localized to epithelial cells; GLP-1 also in myenteric neurons. GLP-1R and GLP-2R were localized at myenteric neurons but not muscle, GLP-1R also in epithelial cells.ConclusionsGLP-1 inhibits postprandial motility through GLP-1R at myenteric neurons, involving nitrergic and cAMP-dependent mechanisms.

Publication and Content Type

ref (subject category)
art (subject category)

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view