The murburn precepts for cellular ionic homeostasis and electrophysiology.

J Cell Physiol

Department of Mechanical Engineering, Gifu University, Yanagido, Gifu, Japan.

Published: January 2022

Starting from the basic molecular structure and redox properties of its components, we build a macroscopic cellular electrophysiological model. We first present a murburn purview that could explain ion distribution in bulk-milieu/membrane-interface and support the origin of trans-membrane potential (TMP) in cells. In particular, the discussion focuses on how cells achieve disparity in the distribution of monovalent and divalent cations within (K  > Na  > Mg  > Ca ) and outside (Na  > K  > Ca  > Mg ). We explore how TMP could vary for resting/graded/action potentials generation and project a model for impulse conduction in neurons. Outcomes based on murburn bioenergetic equilibriums leading to solubilization of ion-pairs, membrane's permittivity, protein channels' fluxes, and proteins' innate ability to bind/adsorb ions selectively are projected as the integral rationale. We also provide experimental modalities to ratify the projections.

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http://dx.doi.org/10.1002/jcp.30547DOI Listing

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