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- W2023355186 abstract "To investigate the long-term effects of glucose on the function of human fetal islets we cultured islet-like cell clusters (ICC) obtained from 12 human fetuses with a mean age of 16.1 weeks in media containing 2.8, 11.1 or 16.7 mM glucose. On the 8th day of culture, the ICC that had been maintained in 16.7 mM glucose contained 60% less insulin than the ICC cultured in 2.8 mM glucose. However, insulin release was similar in both groups, and was not affected by a 24-h incubation in high vs. low glucose. Also (pro)insulin biosynthesis was not significantly affected. During a 24-day culture period, the total release of insulin and glucagon was similar in all glucose concentrations. The ICC released about 75 % of their insulin content but only 15 % of their glucagon content during the last 48 h of the 24-day culture period, again regardless of glucose concentration in media. Insulin release was insensitive to acute glucose and leucine challenges in perifusion experiments after culture for 1, 5, 8 or 16 days in 11.1 mM glucose, whereas glucagon was always a potent stimulus. In conclusion, the function of cultured young human fetal islet cells is remarkably independent of glucose, even during prolonged exposure. Moreover, the primary role of glucagon in fetal life may be that of a paracrine stimulator of β-cell function." @default.
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- W2023355186 date "1991-01-01" @default.
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- W2023355186 title "Lack of glucose-induced functional maturation during long-term culture of human fetal islet cells" @default.
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- W2023355186 doi "https://doi.org/10.1016/0024-3205(91)90149-6" @default.
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