|
MODEL FOR DYNAMICS OF MEMBRANE-RELATED
BIOELECTRICAL PROCESSES IN EARLY EMBRYOGENESIS OF
LOACH
R. Humetsky, Ì. Dyka
Ivan Franko National University of L’viv,
Hrushevsky st. 4, L’viv 79005, Ukraine
e-mail: biolog@franko.lviv.ua
|
The investigation of dynamic changes in electrophysiological
characteristics of loach embryo cells which pass after fertilization during
synchronous cell divisions, were carried out on individual models (for
aperiodic time trend and for oscillatory dynamics of membrane conductance) and
also on the basis of the complex model for bioelectrical processes dynamics.
The last one reflects regularity of membrane transport and the distribution of
electrogenic potassium and sodium ions in connection with the changes of
membrane bioelectrical parameters. It has simulated a quantitative picture of
temporary changes for electrophysiological characteristics at the 7 hours
period of loach embryo development. The dynamics of all bioelectrical
parameters and intracellular concentrations of the electrogenic cations was
determined only using the given initial concentration of these cations. The
obtained results in comparison with experimental data confirm adequacy of the
developed mathematical model to real processes on the initial stage of
embryonic objects development.
|
Keywords: cell membrane, bioelectrical parameters, temporary dynamics,
mathematical model.
|
|