Dynamics of renal blood flow autoregulation in rats.
Two separate components could be resolved in tests of the dynamic autoregulation of renal blood flow. The slow component corresponds to the frequency at which spontaneous proximal tubular pressure oscillations are found, and are most likely due to the operation of the TGF. The high frequency component most likely represents an intrinsic vascular, myogenic, mechanism. The gain maximum of the admittance in the frequency range corresponding to the autonomous tubular oscillations indicates that the dynamic characteristics responsible for the occurrence of the spontaneous tubular oscillations must be common to a significant fraction of the total nephron population.
Holstein-Rathlou
N H
NH
Department of Physiology and Biophysics, University of Southern California School of Medicine, Los Angeles 90033.
Wagner
A J
AJ
Marsh
D J
DJ
D000818:Animals; D001794:Blood Pressure / Q000502:physiology; D006706:Homeostasis / Q000502:physiology; D008297:Male; D011312:Pressure; D051381:Rats; D011919:Rats, Inbred Strains; D012079:Renal Circulation / Q000502:physiology*