The influence of oxygen tension on values of transmembrane potentials in rat liver cell was investigated. The membrane potential was assessed by the uptake TPP as was determined on the ion-selective electrode. Infusion of inhibitors oxidative phosphorylation and glycolysis to incubation medium caused depolarization on the mitochondrial, and, the plasma membranes of this cell. These and other experimental results suggest that there is an interaction between mitochondrial and cytosol pools of ATP, which determine steady-state values on transmembrane potential liver cell under hypoxia.

Download full-text PDF

Source

Publication Analysis

Top Keywords

transmembrane potentials
8
values transmembrane
8
liver cell
8
[energy regulation
4
regulation transmembrane
4
potentials liver
4
liver cells
4
cells hypoxia]
4
hypoxia] influence
4
influence oxygen
4

Similar Publications

Background: Complexity and signal recurrence metrics obtained from body surface potential mapping (BSPM) allow quantifying atrial fibrillation (AF) substrate complexity. This study aims to correlate electrocardiographic imaging (ECGI) detected reentrant patterns with BSPM-calculated signal complexity and recurrence metrics.

Methods: BSPM signals were recorded from 28 AF patients (17 male, 11 women, 62.

View Article and Find Full Text PDF

Astragaloside IV attenuates cadmium induced nephrotoxicity in rats by activating Nrf2.

Sci Rep

January 2025

Department of Nephrology, the Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University, (Third Military Medical University), Chongqing, China.

Acute kidney injury (AKI) has become a disease of global concern due to its high morbidity and mortality. This has highlighted the need for renoprotective agents. Astragaloside IV (AS-IV) is a saponin isolated from Astragalus membranaceus with good antioxidant, anti-inflammatory and anti-tumor properties.

View Article and Find Full Text PDF

Intracellular electrophysiology is essential in neuroscience, cardiology, and pharmacology for studying cells' electrical properties. Traditional methods like patch-clamp are precise but low-throughput and invasive. Nanoelectrode Arrays (NEAs) offer a promising alternative by enabling simultaneous intracellular and extracellular action potential (iAP and eAP) recordings with high throughput.

View Article and Find Full Text PDF

Transient chaos and periodic structures in a model of neuronal early afterdepolarization.

Chaos

January 2025

Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis 88040-900, Santa Catarina, Brazil.

The presence of chaos is ubiquitous in mathematical models of neuroscience. In experimental neural systems, chaos was convincingly demonstrated in membranes, neurons, and small networks. However, its effects on the brain have long been debated.

View Article and Find Full Text PDF

The Primary Cilia are Associated with the Axon Initial Segment in Neurons.

Adv Sci (Weinh)

January 2025

State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing, 100871, China.

The primary cilia serve as pivotal mediators of environmental signals and play crucial roles in neuronal responses. Disruption of ciliary function has been implicated in neuronal circuit disorders and aberrant neuronal excitability. However, the precise mechanisms remain elusive.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!