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The Biphasic Effect of Lipopolysaccharide on Membrane Potential [PDF]

Membranes
Lipopolysaccharide (LPS) from certain strains of Gram-negative bacteria can induce a rapid (
Maria E. Hadjisavva, Robin L. Cooper
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High Variability in Human Sperm Membrane Potential over Time Can Limit Its Reliability as a Predictor in ART Outcomes [PDF]

Biology
Sperm membrane potential (Em) hyperpolarization during capacitation is a functional hallmark of fertilizing ability and has been proposed as a predictive biomarker for conventional in vitro fertilization (IVF) success.
Tomás J. Steeman, Carolina Baro Graf, Analia G. Novero, Mariano G. Buffone, Dario Krapf   +4 more
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The Multi-Conductivity Clausius–Mossotti Factor as an Electrophysiology Rosetta Stone: Dielectrophoresis, Membrane Potential and Zeta Potential [PDF]

Micromachines
Dielectrophoresis (DEP) has been used for decades to estimate the passive electrical properties of cells. However, the body of work on cell electrophysiology derived from Clausius–Mossotti analysis of DEP-derived data pales to insignificance against the ...
Michael Pycraft Hughes
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Analyzing the effect of ion binding to the membrane-surface on regulating the light-induced transthylakoid electric potential (ΔΨm)

Frontiers in Plant Science, 2022
The transthylakoid membrane potential (ΔΨm) is essential because it can drive the ATP synthesis through the CF0–CF1 type of ATP-synthase in chloroplasts as an energetic equivalent similar to ΔpH.
Hui Lyu, Dušan Lazár
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Mitochondrial membrane potential [PDF]

Analytical Biochemistry, 2018
The mitochondrial membrane potential (ΔΨm) generated by proton pumps (Complexes I, III and IV) is an essential component in the process of energy storage during oxidative phosphorylation. Together with the proton gradient (ΔpH), ΔΨm forms the transmembrane potential of hydrogen ions which is harnessed to make ATP.
Ljubava D, Zorova, Vasily A, Popkov, Egor Y, Plotnikov, Denis N, Silachev, Irina B, Pevzner, Stanislovas S, Jankauskas, Valentina A, Babenko, Savva D, Zorov, Anastasia V, Balakireva, Magdalena, Juhaszova, Steven J, Sollott, Dmitry B, Zorov   +11 more
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Deciphering the Role of Ion Channels in Early Defense Signaling against Herbivorous Insects

Cells, 2021
Plants and insect herbivores are in a relentless battle to outwit each other. Plants have evolved various strategies to detect herbivores and mount an effective defense system against them.
Akanksha Gandhi, Rupesh Kariyat, Amaravadhi Harikishore, Marzieh Ayati, Anirban Bhunia, Nirakar Sahoo   +5 more
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The microbiologist’s guide to membrane potential dynamics [PDF]

, 2020
All cellular membranes have the functionality of generating and maintaining the gradients of electrical and electrochemical potentials. Such potentials were generally thought to be an essential but homeostatic contributor to complex bacterial behaviors ...
Asally, Munehiro, Benarroch, Jonatan M.
core   +1 more source

A Novel Cryptic Clostridial Peptide That Kills Bacteria by a Cell Membrane Permeabilization Mechanism

Microbiology Spectrum, 2022
This work reports detailed characteristics of the antimicrobial peptide Intestinalin (P30), which is derived from the LysC enzyme of Clostridium intestinale strain URNW. The peptide shows a broader antibacterial spectrum than the parental enzyme, showing
Monika Szadkowska, Michal Olewniczak, Anna Kloska, Elzbieta Jankowska, Malgorzata Kapusta, Bartosz Rybak, Dariusz Wyrzykowski, Wioletta Zmudzinska, Artur Gieldon, Aleksandra Kocot, Anna-Karina Kaczorowska, Lukasz Nierzwicki, Joanna Makowska, Tadeusz Kaczorowski, Magdalena Plotka   +14 more
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Different resting membrane potentials in posterior parietal cortex and prefrontal cortex in the view of recurrent synaptic strengths and neural network dynamics

Frontiers in Cellular Neuroscience, 2023
In this study, we introduce the importance of elevated membrane potentials (MPs) in the prefrontal cortex (PFC) compared to that in the posterior parietal cortex (PPC), based on new observations of different MP levels in these areas. Through experimental
Minsu Yoo, Yoon-Sil Yang, Jong-Cheol Rah, Jong-Cheol Rah, Joon Ho Choi   +4 more
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Calcium‐ and voltage‐driven atrial alternans: Insight from [Ca]i and Vm asynchrony

Physiological Reports, 2023
Cardiac alternans is defined as beat‐to‐beat alternations in contraction strength, action potential duration (APD), and Ca transient (CaT) amplitude. Cardiac excitation–contraction coupling relies on the activity of two bidirectionally coupled excitable ...
G. Kanaporis, E. Martinez‐Hernandez, L. A. Blatter   +2 more
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