Sentence examples for membrane potential difference from inspiring English sources
Fig. 4 Effects of Parkia biglobosa leaf extract (PBE) (a and b and catechin (c and d) respectively on membrane potential difference of isolated liver mitochondria.
In vitro experiments with isolated rumen epithelium have shown that the relationship between the ruminal K concentration and either the apical membrane potential difference or the mucosal-to-serosal Mg flux reach plateau values at high ruminal K concentrations.
Changes in mitochondrial membrane potential difference (ΔΨm) were evaluated by incubating cells (5×105/ml) for 15 min at 37°C, with DiOC6(3) (stock solution 1 mM in ethanol, final concentration 2.5 nM).
This could be demonstrated by the estimation of electric plasma membrane potential difference with DiSC3(3).
The plasma membrane potential difference was estimated as described before [ 17] following the fluorescence changes of DiSC3(3).
The decarboxylation reaction consumes a proton, contributing to membrane potential difference, which in turn is used by the AcrAB multi-drug efflux pump [ 13].
This drug, which also induces the efflux of K+ and an increase of the plasma membrane electrical potential difference, without apparently disrupting the plasma membrane, produces a remarkable increase of Ca2+ uptake that does not decrease at the highest concentrations used [ 21].
A second experiment used the fluorescent indicator JC-1 to measure changes in mitochondrial membrane potential (the difference in electrical potential between the inside and outside of the mitochondrial membrane) following exposure to Zn2+.
This change decreases the actual concentration of cations at the surface, mainly K+, altering the steady state balance between its internal/external concentration and the plasma membrane electric potential difference, resulting in its efflux.
The mitochondrial content of otherwise similar cells can vary substantially in size and membrane potential, with differences arising from sources including uneven partitioning at cell divisions, leading to extrinsic differences in ATP levels and downstream cellular processes.
The authors discuss critical differences in cristae morphology, transcription and membrane potential during different stages of female germline development.
