ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)

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Pavlova O. N., Pavlov A. N. Rhythmic processes of renal blood flow autoregulation and their interaction in the form of modulation of oscillations. Izvestiya VUZ. Applied Nonlinear Dynamics, 2010, vol. 18, iss. 2, pp. 98-112. DOI: 10.18500/0869-6632-2010-18-2-98-112

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Language: 
Russian
Heading: 
Nonlinear Dynamics in Action
Article type: 
Article
UDC: 
57.087
DOI: 
10.18500/0869-6632-2010-18-2-98-112

Rhythmic processes of renal blood flow autoregulation and their interaction in the form of modulation of oscillations

Autors: 
Pavlova Olga Nikolaevna, Saratov State University
Pavlov Aleksej Nikolaevich, Saratov State University
Abstract: 

Renal blood flow autoregulation at the level of individual nephrons includes two interacting mechanisms that produce oscillations with different time scales: the tubologlomerular feedback (TGF) and the myogenic response. Based on the wavelet-analysis of experimental data, we study in this work phenomena of amplitude and frequency modulation of myogenic oscillations by the TGF-rhythm. Features of nonlinear dependencies of amplitude and frequency deviation of modulated process versus the amplitude of modulating oscillations are revealed. It is shown that phenomena of modulation are essentially different between normal and hypertensive states.

Key words: 
Renal blood flow autoregulation
rhythmic processes
wavelet-analysis
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Received: 
03.09.2009
Accepted: 
17.02.2010
Published: 
30.04.2010
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