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The microbiologist’s guide to membrane potential dynamics [PDF]

Trends in Microbiology, 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   +2 more sources

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
doaj   +2 more sources

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
doaj   +2 more sources

RMP-SNN: Residual Membrane Potential Neuron for Enabling Deeper High-Accuracy and Low-Latency Spiking Neural Network [PDF]

Computer Vision and Pattern Recognition, 2020
Spiking Neural Networks (SNNs) have recently attracted significant research interest as the third generation of artificial neural networks that can enable low-power event-driven data analytics.
Bing Han, G. Srinivasan, K. Roy
semanticscholar   +1 more source

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
doaj   +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
doaj   +1 more source

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
doaj   +1 more source

Effects of Matrix pH on Spontaneous Transient Depolarization and Reactive Oxygen Species Production in Mitochondria

Frontiers in Cell and Developmental Biology, 2021
Reactive oxygen species (ROS) oxidize surrounding molecules and thus impair their functions. Since mitochondria are a major source of ROS, suppression of ROS overproduction in the mitochondria is important for cells.
Jannatul Aklima, Jannatul Aklima, Takumi Onojima, Sawako Kimura, Kanji Umiuchi, Takahiro Shibata, Yusho Kuraoka, Yoshiki Oie, Yoshiki Suganuma, Yoshihiro Ohta   +9 more
doaj   +1 more source

Light/Clock Influences Membrane Potential Dynamics to Regulate Sleep States

Frontiers in Neurology, 2021
The circadian rhythm is a fundamental process that regulates the sleep–wake cycle. This rhythm is regulated by core clock genes that oscillate to create a physiological rhythm of circadian neuronal activity.
Masashi Tabuchi, Kaylynn E. Coates, Oscar B. Bautista, Lauren H. Zukowski   +3 more
doaj   +1 more source

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
doaj   +1 more source