Islet blood flow following insulin administration.

Abstract:

:Blood flow to the pancreatic islets of the anaesthetised rat was measured using the microsphere method. Basal flow was 29 (+/- 6) microliter/min per pancreas which was equivalent to 2.1 (+/- 0.2)% of the total pancreatic flow. The intravenous administration of 4 IU of soluble insulin, which rendered the animals hypoglycaemic, selectively increased islet flow to 93 (+/- 19) microliter/min per pancreas, equivalent to 5.4 (+/- 0.2)% of total pancreatic flow. It is suggested that this may be related to an enhanced release of glucagon from the islet A cells in response to the hypoglycaemia. Administration of 2.5 ml of a 25% glucose solution intraperitoneally gave rise to hyperglycaemia and produced a similar preferential increase in islet blood flow to 86 (+/- 25) microliter/min per pancreas, 7.4 (+/- 0.2)% of total pancreatic flow.

journal_name

J Anat

journal_title

Journal of anatomy

authors

Sparrow RA,Beckingham IJ

subject

Has Abstract

pub_date

1989-04-01 00:00:00

pages

75-81

eissn

0021-8782

issn

1469-7580

journal_volume

163

pub_type

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