Evidence of Extrapancreatic Glucagon Secretion in Man
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Evidence of Extrapancreatic Glucagon Secretion in Man. / Lund, Asger; Bagger, Jonatan I; Wewer Albrechtsen, Nicolai J; Christensen, Mikkel; Grøndahl, Magnus; Hartmann, Bolette; Mathiesen, Elisabeth R; Hansen, Carsten P; Storkholm, Jan H; van Hall, Gerrit; Rehfeld, Jens F; Hornburg, Daniel; Meissner, Felix; Mann, Matthias; Larsen, Steen; Holst, Jens J; Lauritsen, Tina Vilsbøll; Knop, Filip K.
In: Diabetes, Vol. 65, No. 3, 03.2016, p. 585-597.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Evidence of Extrapancreatic Glucagon Secretion in Man
AU - Lund, Asger
AU - Bagger, Jonatan I
AU - Wewer Albrechtsen, Nicolai J
AU - Christensen, Mikkel
AU - Grøndahl, Magnus
AU - Hartmann, Bolette
AU - Mathiesen, Elisabeth R
AU - Hansen, Carsten P
AU - Storkholm, Jan H
AU - van Hall, Gerrit
AU - Rehfeld, Jens F
AU - Hornburg, Daniel
AU - Meissner, Felix
AU - Mann, Matthias
AU - Larsen, Steen
AU - Holst, Jens J
AU - Lauritsen, Tina Vilsbøll
AU - Knop, Filip K
N1 - Erratum. Evidence of Extrapancreatic Glucagon Secretion in Man. Diabetes 2016;65:585–597
PY - 2016/3
Y1 - 2016/3
N2 - Glucagon is believed to be a pancreas-specific hormone and hyperglucagonemia has been shown to contribute significantly to the hyperglycemic state of patients with diabetes. This hyperglucagonemia has been thought to arise from alpha cell insensitivity to suppressive effects of glucose and insulin combined with reduced insulin secretion. We hypothesized that postabsorptive hyperglucagonemia represents a gut-dependent phenomenon and subjected 10 totally pancreatectomized patients and 10 healthy controls to a 75g-oral glucose tolerance test and a corresponding isoglycemic intravenous glucose infusion. We applied novel analytical methods of plasma glucagon (sandwich enzyme-linked immunosorbent assay and mass-spectrometry-based proteomics) and show that 29-amino acid glucagon circulates in patients without a pancreas and that glucose stimulation of the gastrointestinal tract elicits significant hyperglucagonemia in these patients. These findings emphasize the existence of extrapancreatic glucagon (perhaps originating from the gut) in man and suggest that it may play a role in diabetes secondary to total pancreatectomy.
AB - Glucagon is believed to be a pancreas-specific hormone and hyperglucagonemia has been shown to contribute significantly to the hyperglycemic state of patients with diabetes. This hyperglucagonemia has been thought to arise from alpha cell insensitivity to suppressive effects of glucose and insulin combined with reduced insulin secretion. We hypothesized that postabsorptive hyperglucagonemia represents a gut-dependent phenomenon and subjected 10 totally pancreatectomized patients and 10 healthy controls to a 75g-oral glucose tolerance test and a corresponding isoglycemic intravenous glucose infusion. We applied novel analytical methods of plasma glucagon (sandwich enzyme-linked immunosorbent assay and mass-spectrometry-based proteomics) and show that 29-amino acid glucagon circulates in patients without a pancreas and that glucose stimulation of the gastrointestinal tract elicits significant hyperglucagonemia in these patients. These findings emphasize the existence of extrapancreatic glucagon (perhaps originating from the gut) in man and suggest that it may play a role in diabetes secondary to total pancreatectomy.
UR - http://diabetes.diabetesjournals.org/content/65/6/1752
U2 - 10.2337/db15-1541
DO - 10.2337/db15-1541
M3 - Journal article
C2 - 26672094
VL - 65
SP - 585
EP - 597
JO - Diabetes
JF - Diabetes
SN - 0012-1797
IS - 3
ER -
ID: 152242782