Effects of pinealectomy on glucagon responsiveness to hypoglycaemia induced by insulin injections in fed rats.

Abstract:

:The glucagon response to insulin-induced hypoglycaemia was tested in rats that had been pinealectomised (Px), pinealectomised and fitted with melatonin implants (Px + MLT), or sham-operated (SO). The glucagon response to hypoglycaemia observed in SO rats (216 +/- 27 pg x ml(-1) at baseline versus 397 +/- 35 pg x ml(-1) at the hypoglycaemic peak, mean +/- S.D.) was stronger than that in Px rats (180 +/- 37 pg x ml(-1) and 229 +/- 21 pg x ml(-1), respectively) and weaker than that in Px + MLT rats (256 +/- 19 pg x ml(-1) and 516 +/- 11 pg x ml(-1), respectively). Our data indicate that the capacity to release glucagon during insulin-induced hypoglycaemia is altered in pinealectomised rats.

journal_name

Exp Physiol

journal_title

Experimental physiology

authors

Kosa E,Maurel D,Siaud P

doi

10.1113/eph8602205

subject

Has Abstract

pub_date

2001-09-01 00:00:00

pages

617-20

issue

5

eissn

0958-0670

issn

1469-445X

pii

EPH_2205

journal_volume

86

pub_type

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