Impact of intestinal electrical stimulation on nutrient-induced GLP-1 secretion in vivo.

Sandoval D, Dunki-Jacobs A, Sorrell J, Seeley RJ, D'Alessio DD.
Journal   Neurogastroenterol Motil.
Species  
Analytes Measured   GIP , GLP-1
Matrix Tested   Plasma
Year   2013
Volume   25
Page Numbers   700-705
Application   Metabolic
Abstract
BACKGROUND: Increases in L-cell release of GLP-1 are proposed to serve as a negative feedback signal for postprandial changes in gastric emptying and/or motility. Previous ex vivo data suggests that direct electrical stimulation (E-stim) of ileal segments stimulates secretion of GLP-1. This suggests potential feed-forward increases in GLP-1 driven by intestinal neuronal and/or motor activity.

METHODS: To determine if E-stim could increase GLP-1 levels in an in vivo setting, we administered E-stim and nutrients to male Long- Evans rats (300-350 g) under general anesthesia.

KEY RESULTS: Nutrient infusion into the duodenum or ileum significantly increased plasma GLP-1 levels, but E-stim applied to these locations did not (P < 0.05). However, the combination of E-stim and nutrient infusion, in either the ileum or duodenum, significantly increased plasma GLP-1 when compared to nutrient infusion alone (P < 0.05), and this effect was not blocked by either norepinephrine or atropine. To test the impact of intestinal motor activity, the effect of extra-luminal mechanical stimulation (M-stim) on GLP-1 levels was assessed. In the duodenum, but not the ileum, M-stim plus nutrient infusion significantly increased GLP-1 over nutrient infusion or M-stim alone (P < 0.05).

CONCLUSIONS & INFERENCES: Thus, both E- and M-stim of the duodenum, but only E-stim of the ileum augmented nutrient-stimulated GLP-1 release. These data demonstrate that factors beyond enteral nutrients could contribute to the regulation of GLP-1 secretion.

View Publications

Related Products

U-PLEX Diabetes Combo 1 (mouse)
C-Peptide, GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Mouse
Multiplex
U-PLEX Metabolic 3-Plex Combo 1 (mouse)
GLP-1 (total), Glucagon, Insulin | Mouse
Multiplex
U-PLEX Diabetes Combo 1 (human)
C-Peptide, GIP (total), GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Human
Multiplex
U-PLEX Microbiome Combo 1 (human)
Ghrelin (total), GLP-1 (total), Glucagon, Insulin, Leptin, PP, PYY (total) | Human
Multiplex
U-PLEX Diabetes Combo 1 (rat)
C-Peptide, GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Rat
Multiplex
U-PLEX Metabolic 3-Plex Combo 1 (rat)
GLP-1 (total), Glucagon, Insulin | Rat
Multiplex
U-PLEX Custom Metabolic Group 1 (rat) 384-well Assays
Rat
Multiplex
U-PLEX Mouse GLP-1 (total) 384-Well Assay
GLP-1 (total) | Mouse
Singleplex
U-PLEX Rat GLP-1 (total) 384-Well Assay
GLP-1 (total) | Rat
Singleplex
U-PLEX Custom Metabolic Group 1 (mouse) 384-well Assays
BAFF, BCA-1/BLC, BDNF, CD40/TNFRSF5, C-Peptide, Eotaxin, EPO, FGF-21, Ghrelin (active), Ghrelin (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, GM-CSF, IFN-α, IFN-β, IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17E/IL-25, IL-17F, IL-21, IL-22, IL-23, IL-27p28/IL-30, IL-31, IL-33, Insulin, IP-10, KC/GRO, Leptin, MCP-1, MCP-5/CCL12, MDC, MIP-1α, MIP-1β, MIP-2, MIP-3α, MMP-9 (total), PYY (total), RANTES, TARC, TNF-α, VEGF-A | Mouse
Multiplex
U-PLEX Human GLP-1 (total) 384-well Assay
GLP-1 (total) | Human
Singleplex
U-PLEX Human GIP (total) 384-well Assay
GIP (total) | Human
Singleplex
U-PLEX Custom Metabolic Group 1 (human) 384-well Assays
BAFF, BDNF, β-NGF, C-Peptide, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FGF-21, FGF-23, FLT3L, Fractalkine, FSH, G-CSF, Ghrelin (active), Ghrelin (total), GIP (active), GIP (inactive), GIP (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, GM-CSF, GRO-α, I-309, IFN-α2a, IFN-β, IFN-γ, IL-1α, IL-1β, IL-1RA, IL-2, IL-2Rα, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17D, IL-17E/IL-25, IL-17F, IL-18, IL-21, IL-22, IL-23, IL-27, IL-29/IFN-λ1, IL-31, IL-33, Insulin, IP-10, Leptin, Luteinizing Hormone (LH), MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-5, PP, Proinsulin, PYY (total), SDF-1α, TARC, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, YKL-40 | Human
Multiplex
U-PLEX Human GIP (total) Assay
GIP (total) | Human
Singleplex
U-PLEX Human GLP-1 (total) Assay
GLP-1 (total) | Human
Singleplex
U-PLEX Mouse GLP-1 (total) Assay
GLP-1 (total) | Mouse
Singleplex
U-PLEX Rat GLP-1 (total) Assay
GLP-1 (total) | Rat
Singleplex
U-PLEX Custom Metabolic Group 1 (rat) Assays
Rat
Multiplex
U-PLEX Custom Metabolic Group 1 (mouse) Assays
Mouse
Multiplex
U-PLEX Metabolic Combo 1 (rat)
BDNF, C-Peptide, FGF-21, Ghrelin (active), Ghrelin (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Rat
Multiplex
U-PLEX Metabolic Combo 1 (mouse)
BAFF, BDNF, C-Peptide, FGF-21, Ghrelin (active), Ghrelin (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Mouse
Multiplex
U-PLEX Obesity Combo 2 (rat)
C-Peptide, Ghrelin (total), GLP-1 (total), Insulin, Leptin, PYY (total) | Rat
Multiplex
U-PLEX Obesity Combo 2 (mouse)
C-Peptide, Ghrelin (total), GLP-1 (total), Insulin, Leptin, PYY (total) | Mouse
Multiplex
U-PLEX Custom Metabolic Group 1 (human) Assays
BAFF, BDNF, β-NGF, C-Peptide, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FGF-21, FGF-23, FLT3L, Fractalkine, FSH, G-CSF, Ghrelin (active), Ghrelin (total), GIP (active), GIP (inactive), GIP (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, GM-CSF, GRO-α, I-309, IFN-α2a, IFN-β, IFN-γ, IL-1α, IL-1β, IL-1RA, IL-2, IL-2Rα, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17D, IL-17E/IL-25, IL-17F, IL-18, IL-21, IL-22, IL-23, IL-27, IL-29/IFN-λ1, IL-31, IL-33, Insulin, IP-10, Leptin, Luteinizing Hormone (LH), MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-5, PP, Proinsulin, PYY (total), SDF-1α, TARC, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, YKL-40 | Human
Multiplex
U-PLEX GLP-1 (total) Antibody Set (5 Plate Size)
GLP-1 (total) | Human, Mouse, Rat
U-PLEX Human GIP (total) Antibody Set
GIP (total) | Human
U-PLEX Obesity Combo 2 (human)
C-Peptide, FGF-23, Ghrelin (total), GLP-1 (total), Insulin, Leptin, PYY (total) | Human
Multiplex
U-PLEX Diabetes Combo 2 (human)
C-Peptide, GIP (total), GLP-1 (active), Glucagon, Insulin, Leptin, PYY (total) | Human
Multiplex
U-PLEX Metabolic Combo 1 (human)
BAFF, BDNF, β-NGF, C-Peptide, FGF-21, FGF-23, FSH, Ghrelin (active), Ghrelin (total), GIP (active), GIP (inactive), GIP (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, Insulin, Leptin, Luteinizing Hormone (LH), PP, Proinsulin, PYY (total) | Human
Multiplex
V-PLEX Plus GLP-1 (total) Kit
GLP-1 (total) | Human, Mouse, Non-human primate, Rat, Canine
Singleplex
V-PLEX GLP-1 (total) Kit
GLP-1 (total) | Human, Mouse, Non-human primate, Rat, Canine
Singleplex
GLP-1 (total) Control Pack
GLP-1 (total) | Human, Mouse, Non-human primate, Rat, Canine
GLP-1 (total) Antibody
GLP-1 (total) | Human
Browse Our Products

By Analytes
By Applications
Search
Customer Service/Orders


Scientific/Technical Support


Instrument Support


Company Headquarters