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Effects of exogenous and endogenous natriuretic peptides on forearm vascular function in chronic heart failure

  • M Schmitt
  • , P Gunaruwan
  • , N Payne
  • , L Lee
  • , AJ Broadley
  • , AK Nightingale
  • , JR Cockcroft
  • , AD Struthers
  • , JV Tyberg
  • , Michael Frenneaux
  • , Justin S W Taylor

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

OBJECTIVE: Natriuretic peptides (NPs) reduce central venous pressure in patients with chronic heart failure (cHF) despite attenuation of arterial, renal, and humoral effects. This suggests a preserved venodilator response. This study had 4 aims: to compare the venodilator effects of human NPs in patients with cHF; to assess the contribution of basal ANP and BNP levels to regulation of forearm vascular volume (FVV); to test the hypothesis that venous ANP responsiveness is preserved in cHF; and to assess the involvement of endothelial nitric oxide-synthase (eNOS) in NP-induced vascular effects. METHODS AND RESULTS: Venous and arterial forearm vascular responses to incremental intra-arterial doses of ANP, Urodilatin, BNP, CNP, or the ANP receptor antagonist A71915 were studied in 53 patients and 11 controls. ANP receptor antagonism reduced FVV by 4.4%+/-1.2% (P
Original languageEnglish
Pages (from-to)911-917
Number of pages7
JournalArteriosclerosis Thrombosis and Vascular Biology
Volume24
DOIs
Publication statusPublished - 1 Jan 2004

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