Results 11 to 20 of about 3,436,061 (328)

The Biphasic Effect of Lipopolysaccharide on Membrane Potential. [PDF]

Membranes (Basel)
Lipopolysaccharide (LPS) from certain strains of Gram-negative bacteria can induce a rapid (
Hadjisavva ME, Cooper RL.
europepmc   +2 more sources

Ling’s Adsorption Theory as a Mechanism of Membrane Potential Generation Observed in Both Living and Nonliving Systems [PDF]

Membranes, 2016
The potential between two electrolytic solutions separated by a membrane impermeable to ions was measured and the generation mechanism of potential measured was investigated.
Hirohisa Tamagawa, Makoto Funatani, K. Ikeda   +2 more
openalex   +3 more sources

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

High Variability in Human Sperm Membrane Potential over Time Can Limit Its Reliability as a Predictor in ART Outcomes. [PDF]

Biology (Basel)
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.
Steeman TJ, Baro Graf C, Novero AG, Buffone MG, Krapf D.   +4 more
europepmc   +2 more sources

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

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

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
doaj   +1 more source

Lipophilic Cations Rescue the Growth of Yeast under the Conditions of Glycolysis Overflow

Biomolecules, 2020
Chemicals inducing a mild decrease in the ATP/ADP ratio are considered as caloric restriction mimetics as well as treatments against obesity. Screening for such chemicals in animal model systems requires a lot of time and labor. Here, we present a system
Svyatoslav S. Sokolov, Ekaterina A. Smirnova, Olga V. Markova, Natalya A. Kireeva, Roman S. Kirsanov, Liudmila S. Khailova, Dmitry A. Knorre, Fedor F. Severin   +7 more
doaj   +1 more source

Effect of sodium humate on membrane potential in internodal cells of Nitellopsis obtusa

Acta Societatis Botanicorum Poloniae, 2014
Membrane potential and resistance changes in Nitellopsis obtusa induced by Na-humate as a function of external pH were investigated. The administration of Na-humate at concentrations of 12.5, 25, 50 and 100 mg dm-3 brought about a hyperpolarization of ...
Maria Zientara
doaj   +1 more source