Glucose-induced reduction of the sodium content in beta-cell-rich pancreatic islets.

Abstract:

:The sodium contents of beta-cell-rich pancreatic islets from ob/ob-mice were measured with an integrating flame photometer. After washing to an apparent steady state with different types of ice-cold media, islets incubated in the absence of glucose contained 79-108 mmol sodium kg-1 dry weight. Exposure to glucose resulted in 25% reduction of the islet content of sodium. This effect became manifest in the presence of 5 mM glucose, there being no additional reduction with a further increase of glucose to 20 mM. Depression of Na+ activity may partially explain why glucose, under certain conditions, can lower cytoplasmic Ca2+ and even inhibit insulin release.

journal_name

Biosci Rep

journal_title

Bioscience reports

authors

Wesslén N,Bergsten P,Hellman B

doi

10.1007/BF01114973

subject

Has Abstract

pub_date

1986-11-01 00:00:00

pages

967-72

issue

11

eissn

0144-8463

issn

1573-4935

journal_volume

6

pub_type

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