Abstract

The effects of a synthetic alpha human atrial natriuretic polypeptide (hANP) on systemic blood pressure and renal nerve activity were studied before and after sinoaortic denervation with vagotomy in anesthetized dogs. Intravenous injection of hANP (1 microgram/kg) in animals with the neuraxis intact produced a mild decrease in systemic blood pressure and a significant increase in renal sympathetic nerve activity. However, in animals with sinoaortic denervation and vagotomy, a profound fall in blood pressure occurred after administration of hANP. Renal nerve activity in these animals was reduced significantly, in parallel with decreases in systemic blood pressure. These results indicate that activation of peripheral baroreceptors minimizes the hypotension induced by intravenous injection of hANP, and may mask at least centrally mediated cardiovascular effects of hANP.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.