Tolbutamide stimulates exocytosis of glucagon by inhibition of a mitochondrial-like ATP-sensitive K+ (KATP) conductance in rat pancreatic A-cells.

1. Capacitance measurements were used to examine the effects of the sulphonylurea tolbutamide on Ca2+-dependent exocytosis in isolated glucagon-secreting rat pancreatic A-cells. 2. When applied extracellularly, tolbutamide stimulated depolarization-evoked exocytosis 4.2-fold without affecting the wh...

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Bibliographic Details
Main Authors: Høy, M, Olsen, H, Bokvist, K, Buschard, K, Barg, S, Rorsman, P, Gromada, J
Format: Journal article
Language:English
Published: 2000