Biomedical subjects

L A Erokhova

Publications and source records attributed to L A Erokhova.

4 recordsLinked to original sources

PubMed2005

Interference microscopy under double-wavelet analysis: a new approach to studying cell dynamics.

This Letter combines a novel experimental approach to the study of intracellular processes with a newly developed technique for multimode time-series analysis. Experiments are performed on isolated pond snail (Lymnaea stagnalis) neurons. Local variations in the cellular refractive index as detected by laser interference microscopy are related to the processes in the cell. A wavelet analysis shows the presence of several identifiable modes in the membrane and intracellular dynamics, and a double-wavelet analysis reveals nonlinear interactions between the regulatory processes in the form of mutual frequency and amplitude modulations.

Animals↗

PubMed2005

Study of regular intracellular and membrane processes in neurons by laser interference microscopy.

Regular fluctuations in the height of phase profile of isolated neuron were studied by laser interference microscopy. The resultant spectra of frequencies of changes in the phase profile height indicate regular local changes in the optical density and/or geometry of neurons. The frequency spectra for the central and pri-membrane regions of the cells are different.

Animals↗

PubMedDate not supplied

Analysis of conformational changes in neuronal carotenoids under the influence of neuromediator.

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Acetylcholine↗

PubMedDate not supplied

[Redistribution of membrane-bound Ca2+ in neurolemma of leech Retzius-neurons during thermostimulation].

Changes in electrical activity, plasma membrane and inner mitochondrial membrane potentials, as well as in the content of membrane-bound calcium and NADH in identified leech ganglion neurons during thermal stimulation were studied by microelectrode and microfluorimetric methods. It was shown that thermal stimulation of skin patches from different regions of leech body causes a reversible increase in the firing rate of pacemaker neurons (Rz neurons). A decrease in the content of membrane-bound calcium in the neurolemma and NADH content in Rz neuron mitochondria, and a depolarization of inner mitochondrial membrane were also observed.

Cell Membrane↗