ArticleDiabetologia1995
Interleukin-1 beta inhibition of insulin release in rat pancreatic islets: possible involvement of G-proteins in the signal transduction pathway.
Article in Diabetologia, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 12 citations in OpenAlex.
- The role of interleukin-1 in the pathogenesis of IDDM.Diabetologia · 1996Review
- Interleukin-1 beta and GTP-binding proteins.Diabetologia · 1996Article
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8 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
In vitro exposure of rat pancreatic beta cells to interleukin-1 beta (IL-1 beta) inhibits glucose-stimulated insulin release (2140 +/- 239 and 323 +/- 80 pg.islet-1.h-1 at glucose levels of 16.7 mmol/l in control and IL-1 beta-exposed islets, respectively, n = 7, p < 0.001). Cholera toxin (2 micrograms/ml) or pertussis toxin (0.5 microgram/ml) potentiated, as expected, glucose-induced insulin release in control islets, but, in addition, when added together with IL-1 beta, were able to prevent the IL-1 beta mediated inhibition of glucose-stimulated insulin secretion (2087 +/- 301 and 1662 +/- 173 pg.islet-1.h-1, respectively, p < 0.05 vs islets exposed to IL-1 beta alone). To investigate the mechanism by which the toxins prevent the IL-1 beta effect, we then measured nitrite levels, glucose oxidation and Ca2+ uptake. Nitrite levels in the culture medium were 4.2 +/- 1.4 and 24.0 +/- 5 pmol.islet-1.24 h-1 in control islets and in IL-1 beta-exposed islets, respectively (n = 6, p = 0.05). In islets exposed to IL-1 beta and cholera or pertussis toxins, nitrite levels were 9.1 +/- 3 and 12.4 +/- 6 pmol.islet-1.24 h-1, respectively (n = 6, NS vs control islets). Glucose oxidation at 16.7 mmol/l glucose was 31.1 +/- 2.9 pmol.islet-1.120 min-1 in control islets and 16.8 +/- 2.7 pmol.islet-1.120 min-1 in IL-1 beta-treated islets (p < 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
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