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PMID |
Sentence |
1 |
8922354
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Because the insulinotropic effect of GIP is reduced in NIDDM, it should be clarified whether defects in the GIP receptor gene contribute to the impaired insulin secretion in NIDDM.
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2 |
12540373
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Pancreatic insulin content and gene expression were reduced in GIPR(-/-) mice compared with GIPR(+/+) mice.
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3 |
12540373
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In conclusion, GIPR(-/-) mice exhibit altered islet structure and topography and increased islet sensitivity to GLP-1 despite a decrease in pancreatic insulin content and gene expression.
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4 |
16181707
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These data indicate that long term activation of the GIP receptor by daily treatment with N-AcGIP(LysPAL37) improved glucose tolerance due to enhancement of pancreatic beta cell glucose responsiveness and insulin secretion.
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5 |
17971513
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Gastric inhibitory polypeptide (GIP) is an incretin that potentiates insulin secretion from pancreatic beta-cells by binding to GIP receptor (GIPR) and subsequently increasing the level of intracellular adenosine 3',5'-cyclic monophosphate (cAMP).
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6 |
17971513
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In high-fat diet-fed obese mice (HFD mice), blood glucose levels were maintained by compensatory increased insulin secretion (n = 8, P < 0.05), and cAMP production (n = 6, P < 0.01) and insulin secretion (n = 10, P < 0.05) induced by GIP were significantly increased in isolated islets, suggesting hypersensitivity of the GIPR.
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7 |
18333892
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These data indicate that the beneficial actions of the GIP-R antagonist, (Pro3)GIP, in obesity-diabetes appear to be largely mediated through insulin-dependent mechanisms that merit further investigation.
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8 |
21270265
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Morpholine-ring antisense or siRNA against either GIP ligand or GIP receptor both inhibited the differentiation of insulin-positive cells.
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9 |
21245029
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Taken together, these studies show that GIP and insulin act in a synergistic manner on 3T3-L1 cell development and that adipocyte GIPR expression is upregulated through a mechanism involving interactions between PPAR? and a GIPR promoter region containing an acetylated histone region.
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10 |
20185813
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Eleven-week-old GIPR(dn) transgenic pigs exhibited significantly reduced oral glucose tolerance due to delayed insulin secretion, whereas intravenous glucose tolerance and pancreatic beta-cell mass were not different from controls.
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11 |
20185813
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The insulinotropic effect of GIP was significantly reduced, whereas insulin secretion in response to the GLP-1 receptor agonist exendin-4 was enhanced in GIPR(dn) transgenic versus control pigs.
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12 |
20332343
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Thiazolidinedione activation (72 h) of this pathway in normal mouse islets caused a threefold increase of GIP-R protein and a doubling of insulin secretion to 16.7 mmol/l glucose/10 nmol/l GIP.
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13 |
20446595
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GIP and GLP-1 potentiate glucose-induced insulin secretion by binding GIP receptor and GLP-1 receptor, respectively, on pancreatic beta-cell and increasing intracellular cAMP concentration (incretin effect).
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