PMID: 9175596May 2, 1997Paper

Modulation of the arterial baroreceptor reflex by the vasopressin receptor in the area postrema of the hypertensive rats

Neuroscience Letters
Y NakayamaH Kamiya

Abstract

The role of arginine8-vasopressin (AVP) in regulation of the baroreceptor reflex in the area postrema was examined in anesthetized hypertensive rats. The sensitivity of the baroreceptor reflex in a one-kidney one clip (1K1C) hypertensive rats was increased in only the initial stage (2 weeks), in association with increase in blood pressure, and then returned to the normal level. This increase in the sensitivity of the baroreceptor reflex in the initial stage was reversed by microinjection of a V1 or V2 antagonist (1 microg) into the area postrema. AVP V2 receptor mRNA was expressed temporarily in the area postrema in this period. These results suggest that vasopressin receptors in the area postrema is important in regulating the sensitivity of the baroreceptor reflex.

References

Aug 1, 1990·Circulation Research·E M Hasser, V S Bishop
Dec 30, 1994·Biochemical and Biophysical Research Communications·A HirasawaH Kamiya

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Citations

Apr 9, 2005·Journal of Anatomy·Andrea PorzionatoRaffaele De Caro
Apr 14, 2007·The Journal of Physiology·Eric G KrauseRobert J Contreras
Jan 8, 2005·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Steven L Bealer
Sep 24, 2019·Current Neuropharmacology·Nina Japundžić-ŽigonDavid Murphy

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