title: Bimodal oscillations in nephron autoregulation.
abstract: The individual functional unit of the kidney (the nephron) displays oscillations in its pressure and flow regulation at two different time scales: fast oscillations associated with a myogenic dynamics of the afferent arteriole, and slower oscillations arising from a delay in the tubuloglomerular feedback. We investigate the intra- and internephron entrainment of the two time scales. In addition to full synchronization, both wavelet analyses of experimental data and numerical simulations reveal a partial entrainment in which neighboring nephrons attain a state of chaotic synchronization with respect to their slow dynamics, but the fast dynamics remain desynchronized.
authors.affiliation: Physics Department, Saratov State University, Astrakhanskaya Street 83, Saratov, 410026, Russia.
authors.forename: O V
authors.initials: OV
authors.lastname: Sosnovtseva
authors.forename: A N
authors.initials: AN
authors.lastname: Pavlov
authors.forename: E
authors.initials: E
authors.lastname: Mosekilde
authors.forename: N-H
authors.initials: NH
authors.lastname: Holstein-Rathlou