Intracellular sodium activity in papillary muscle from diabetic rat hearts.

Abstract:

:In quiescent papillary muscles isolated from hearts of rats with streptozotocin-induced diabetes resting intracellular sodium activity (aiNa) was about 56% greater than in muscles from controls. An intracellular acid load induced by the NH4+ method caused a rise in aiNa whose maximum amplitude was similar in both groups of muscles. However, the half-time to maximum amplitude was increased by about 56% in diabetic muscles. These results are consistent with a diabetes-induced decrease in the activity of the sarcolemmal Na(+)-H+ exchange.

journal_name

Exp Physiol

journal_title

Experimental physiology

authors

Lagadic-Gossmann D,Feuvray D

doi

10.1113/expphysiol.1991.sp003478

subject

Has Abstract

pub_date

1991-01-01 00:00:00

pages

147-9

issue

1

eissn

0958-0670

issn

1469-445X

journal_volume

76

pub_type

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