Markedly reduced blood pressure responsiveness in endotoxemic rats; reversal by neuropeptide Y.

Abstract:

:This study in conscious normotensive rats was performed to assess the effect of the vasoconstrictor peptide, neuropeptide Y (NPY), on blood pressure responsiveness to exogenous norepinephrine in endotoxaemia. NPY and endotoxin were infused at doses which had no effect on blood pressure, whether given alone or in combination. Endotoxin markedly reduced the pressor responses to bolus injections of norepinephrine. However, blood pressure responsiveness could be enhanced by infusing NPY simultaneously with the endotoxin. It is suggested that low dose NPY infusions may be clinically useful in reversing the reduced vascular responsiveness to pressor amines in shock.

journal_name

Life Sci

journal_title

Life sciences

authors

Evéquoz D,Waeber B,Corder R,Nussberger J,Gaillard R,Brunner HR

doi

10.1016/0024-3205(87)90442-5

subject

Has Abstract

pub_date

1987-12-07 00:00:00

pages

2573-80

issue

23

eissn

0024-3205

issn

1879-0631

pii

0024-3205(87)90442-5

journal_volume

41

pub_type

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