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Synchronization of spontaneous contraction activity in smooth muscle of urinary bladder
Author(s) -
Van Duyl W. A.,
Van Der Hoeven A. A. M.,
De Bakker J. V.
Publication year - 1990
Publication title -
neurourology and urodynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.918
H-Index - 90
eISSN - 1520-6777
pISSN - 0733-2467
DOI - 10.1002/nau.1930090511
Subject(s) - erasmus+ , physics , medicine , art history , art , the renaissance
Strips of bladder smooth muscle exhibit spontaneous contraction activity of a rhythmic nature, with varying periodicities and waveforms. Frequency analysis has revealed that most of the time two main frequencies can be distinguished: one of about two per minute and the other about twice this frequency [Duyl, 19851. Hak et al. [1988] found that the lower frequency component is inhibited by an anticholinergicum (oxyphenomiumbromide), whereas the higher frequency component is not affected by this drug. This observation suggests that these frequency components may have distinct origins. We observed and analyzed two aspects of the spontaneous activity simultaneously on strips of bladder tissue of the pig: The contraction forcc across the strip and the local inicrodisplacements within the strip. Frequency analysis has been done on both the force signal and the motion signals. Furthermore, we looked for motion patterns of the spontaneous activity in the tissue.