Title :
Non-linear Analyses of Cell proliferation in the central nervous system reveal stochastic and deterministic components
Author :
Mazzeo, J. ; Rapacioli, M. ; Perfetto, J. ; Fuentes, F. ; Ortalli, L. ; Scicolone, G. ; Sánchez, V. ; Attellis, C.D. ; Flores, V.
Author_Institution :
Institute of Biomedical Engineering, Buenos Aires University
Abstract :
This paper analyzes the dynamics of cell proliferation in the developing central nervous system. Three different algorithms, Fano Factor, Allan Factor and Detrended Fluctuations Analysis, are used to estimate de scaling exponent of space numerical series obtained by recording the number and position of proliferating cells along the cephalic-caudal axis of the system. It can be concluded that the dynamics of proliferation involves two component: (a) a random non-correlated stochastic component representing a basal proliferating activity uniformly distributed along the cephalic-caudal axis and (b) a deterministic non-stationary component that imposes a defined global trend to the process. The deterministic non-stationary trend can be interpreted as the effect of a controlling influence operating along the cephalic-caudal axis. This result indicates that the proliferative activity is spatially organized along the cephalic-caudal axis of the system.
Keywords :
Cell proliferation; Central Nervous System; Developmental Mechanisms; Self-similarity; Biological cells; Biology; Biomedical engineering; Cells (biology); Central nervous system; Fractals; Space technology; Statistics; Stochastic processes; Stochastic systems;
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Print_ISBN :
0-7803-8439-3
DOI :
10.1109/IEMBS.2004.1403779