Title : Nicotinamide inhibits IRF-1 mRNA induction and prevents IL-1 beta-induced nitric oxide synthase expression in pancreatic beta cells.

Pub. Date : 1995 Oct 13

PMID : 7487987






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1 Nicotinamide inhibits IRF-1 mRNA induction and prevents IL-1 beta-induced nitric oxide synthase expression in pancreatic beta cells. Niacinamide interleukin 1 beta Rattus norvegicus
2 Here, using isolated rat pancreatic islets, we show that high-concentration nicotinamide (20 mM), but not low-concentration nicotinamide (5 mM), attenuates the interleukin-1 beta-evoked inhibition of glucose-induced insulin secretion by preventing the induction of interferon regulatory factor-1, a transcriptional factor which plays an essential role in inducible nitric oxide synthase gene expression, and the interleukin-1 beta-induced nitric oxide formation. Niacinamide interleukin 1 beta Rattus norvegicus
3 Here, using isolated rat pancreatic islets, we show that high-concentration nicotinamide (20 mM), but not low-concentration nicotinamide (5 mM), attenuates the interleukin-1 beta-evoked inhibition of glucose-induced insulin secretion by preventing the induction of interferon regulatory factor-1, a transcriptional factor which plays an essential role in inducible nitric oxide synthase gene expression, and the interleukin-1 beta-induced nitric oxide formation. Niacinamide interleukin 1 beta Rattus norvegicus
4 High-concentration nicotinamide also restored an interleukin-1 beta-induced decrease in ATP content in pancreatic beta cells, suggesting that interleukin-1 beta-induced nitric oxide inhibits the mitochondrial function. Niacinamide interleukin 1 beta Rattus norvegicus
5 High-concentration nicotinamide also restored an interleukin-1 beta-induced decrease in ATP content in pancreatic beta cells, suggesting that interleukin-1 beta-induced nitric oxide inhibits the mitochondrial function. Niacinamide interleukin 1 beta Rattus norvegicus