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PMID |
Sentence |
1 |
2578419
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Galanin infusions produced greater parenteral glucose-induced rises in plasma glucose levels along with markedly blunted insulin responses compared with glucose and insulin responses to control glucose infusions.
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2 |
2578419
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These results suggest that galanin's hyperglycemic activity is predominantly mediated by a reversible inhibition of insulin secretion.
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3 |
2457528
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The nonadrenergic component may be mediated by the 29-amino acid peptide galanin in that this neuropeptide meets several of the criteria necessary to be considered a sympathetic neurotransmitter in the endocrine pancreas. 1) Galanin administration inhibits basal insulin and somatostatin secretion and stimulates basal glucagon secretion from the pancreas, qualitatively reproducing the effects of sympathetic nerve stimulation.
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4 |
2457528
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If galanin is a sympathetic neurotransmitter in the endocrine pancreas, it may contribute to the inhibition of insulin secretion that occurs during stress and thereby to the hyperglycemic response.
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5 |
2457528
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Moreover, the local presence of this potent beta-cell inhibitor in the islet leads to speculation on galanin's contribution to the impairment of insulin secretion that occurs in non-insulin-dependent diabetes mellitus and therefore on the potential utility of a galanin antagonist in the treatment of this disease.
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6 |
2475378
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The neuropeptide galanin inhibits glucose-stimulated insulin release in dogs and rodents and has been proposed as having a role in the control of insulin release in humans.
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7 |
2475378
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The results showed no effect of galanin infusion on plasma glucose or serum insulin, although a rise in serum growth hormone even in the face of the intravenous glucose load confirmed the potent growth hormone-stimulating effect of galanin.
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8 |
1695589
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Pig galanin inhibited the insulin output elicited by arginine (approximately 45%, P less than 0.05) but did not affect the somatostatin and glucagon responses to the aminogenic stimulus.
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9 |
1370155
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Human galanin inhibited glucose-stimulated insulin secretion in a dose-dependent manner in RIN cells.
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10 |
1283731
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We found that at this dose level, galanin did not affect insulin secretion stimulated by glucose alone.
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11 |
1283731
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In contrast, galanin clearly suppressed tolbutamide-stimulated insulin secretion.
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12 |
1283731
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However, when active, galanin clearly inhibits insulin secretion also in the pig pancreas.
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13 |
7678403
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Galanin stimulated the high-affinity GTPase, over the concentration range in which it inhibits stimulated insulin secretion, to a maximal rate 80% greater than the basal rate.
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14 |
7505518
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Galanin inhibits insulin secretion and has been proposed to function as a sympathetic neurotransmitter in the endocrine pancreas in some species, for example in the dog.
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15 |
7535266
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Inhibition of adenylyl cyclase activity is one of at least four mechanisms by which the neuropeptide galanin inhibits insulin secretion from pancreatic beta-cells.
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16 |
7535266
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In a membrane preparation of the insulin-secreting cell line RINm5F, a maximally effective concentration of galanin inhibited forskolin-stimulated adenylyl cyclase activity by 30%.
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17 |
7796922
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Both galanin and somatostatin inhibit insulin release from pancreatic beta-cells by opening KATP through the activation of G-protein.
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18 |
21664358
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To test this hypothesis, we compared four groups of rats to examine whether an increase in galanin secretion stimulated by swimming may reduce insulin resistance.
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19 |
21664358
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These observations suggest that endogenous galanin reduces insulin resistance by increasing GLUT4 contents and promoting GLUT4 transportation from intracellular membranes to plasma membranes in adipocytes.
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