Results 31 to 40 of about 2,782,679 (244)

Imaging the Permeability Pore Transition in Single Mitochondria [PDF]

open access: yesBiophysical Journal, 1998
In mitochondria the opening of a large proteinaceous pore, the "mitochondrial permeability transition pore" (MTP), is known to occur under conditions of oxidative stress and matrix calcium overload. MTP opening and the resulting cellular energy deprivation have been implicated in processes such as hypoxic cell damage, apoptosis, and neuronal ...
Hüser, Jörg   +2 more
openaire   +2 more sources

The mitochondrial permeability transition pore in Ca2+ homeostasis

open access: yesCell Calcium, 2023
The mitochondrial Permeability Transition Pore (PTP) can be defined as a Ca2+ activated mega-channel involved in mitochondrial damage and cell death, making its inhibition a hallmark for therapeutic purposes in many PTP-related paradigms. Although long-lasting PTP openings have been widely studied, the physiological implications of transient openings ...
Michela Carraro, Paolo Bernardi
openaire   +2 more sources

Defining the molecular mechanisms of the mitochondrial permeability transition through genetic manipulation of F-ATP synthase

open access: yesNature Communications, 2021
The nature of the mitochondrial permeability transition pore (PTP) is still under debate. Here, through genetically modified F-ATP synthase, the authors show that PTP formation can be mediated by F-ATP synthase or by adenine nucleotide translocator ...
Andrea Carrer   +10 more
doaj   +1 more source

Both ANT and ATPase are essential for mitochondrial permeability transition but not depolarization

open access: yesiScience, 2022
Summary: An increase in permeability of the mitochondrial inner membrane, mitochondrial permeability transition (PT), is the central event responsible for cell death and tissue damage in conditions such as stroke and heart attack.
M.A. Neginskaya   +2 more
doaj   +1 more source

Effect of hydrate nucleation mechanisms and capillarity on permeability reduction in granular media

open access: yesGeophysical Research Letters, 2016
A model for water permeability reduction in hydrate‐bearing sediments is presented by considering capillary effect in hydrate nucleation. Both grain‐coating and pore‐filling cases are considered.
Dong Hun Kang   +3 more
doaj   +1 more source

PKCε and cardioprotection : an exploration of putative mechanisms [PDF]

open access: yes, 2006
Includes bibliographical references.Recent studies have investigated the underlying regulatory mechanisms that may explain the cardioprotective role of PKCε.
McCarthy, Joy
core   +1 more source

The molecular composition of the mitochondrial permeability transition pore [PDF]

open access: yesJournal of Molecular and Cellular Cardiology, 2009
Uncontrolled cell death is a fundamental cause of organ disease in humans. However, despite the need for us to delineate the molecular machinery that underlies cardiomyocyte death, our knowledge of these lethal cellular processes is still limited. The discovery that mitochondrial dysfunction, and in particular the mitochondrial permeability transition (
openaire   +2 more sources

Petrophysics and sediment variability in a mixed alluvial to lacustrine carbonate system (Miocene, Madrid Basin, Central Spain)

open access: yesThe Depositional Record, 2022
This study evaluates variations in petrophysical properties within a mixed alluvial to lacustrine carbonate system (Miocene, Madrid Basin, Central Spain).
John J. G. Reijmer   +5 more
doaj   +1 more source

Mitochondrial Permeability Transition: A Pore Intertwines Brain Aging and Alzheimer’s Disease

open access: yesCells, 2021
Advanced age is the greatest risk factor for aging-related brain disorders including Alzheimer’s disease (AD). However, the detailed mechanisms that mechanistically link aging and AD remain elusive.
Kun Jia, Heng Du
doaj   +1 more source

A Pore–Fracture Permeability Model for Rocks, Considering Temperature-Induced Damage and Creep Deformation

open access: yesApplied Sciences
Deep rock engineering is affected by coupled thermal, mechanical, and hydraulic processes, and the accurate prediction of permeability evolution is important for underground energy development and engineering safety.
Xueying Liu   +5 more
doaj   +1 more source

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