Results 31 to 40 of about 1,080,370 (350)

How mitochondria produce reactive oxygen species

open access: yesBiochemical Journal, 2008
The production of ROS (reactive oxygen species) by mammalian mitochondria is important because it underlies oxidative damage in many pathologies and contributes to retrograde redox signalling from the organelle to the cytosol and nucleus. Superoxide (O2•−
M. Murphy
semanticscholar   +1 more source

Abiotic Stress and Reactive Oxygen Species: Generation, Signaling, and Defense Mechanisms

open access: yesAntioxidants, 2021
Climate change is an invisible, silent killer with calamitous effects on living organisms. As the sessile organism, plants experience a diverse array of abiotic stresses during ontogenesis.
Swati Sachdev   +4 more
semanticscholar   +1 more source

Reactive Oxygen Species in Stem Cells [PDF]

open access: yesOxidative Medicine and Cellular Longevity, 2015
Stem cells are defined by their unique ability to self-renew and their multipotent differentiation capacity, thus maintaining tissue homeostasis throughout the life of a multicellular organism. Stem cells reside in niches characterized by hypoxia and low reactive oxygen species (ROS), both of which are critical for maintaining the potential for self ...
Tullia Maraldi   +3 more
openaire   +5 more sources

Reactive oxygen species and Covid-19

open access: yesJKKI (Jurnal Kedokteran dan Kesehatan Indonesia), 2020
No ...
Dwi Nur Ahsani
doaj   +1 more source

Reactive Oxygen Species in Plants: From Source to Sink

open access: yesAntioxidants, 2022
Reactive oxygen species (ROS, partial reduction or derivatives of free radicals) are highly reactive, dangerous and can cause oxidative cell death. In addition to their role as toxic by-products of aerobic metabolism, ROS play a role in the control and ...
Sheikh Mansoor   +7 more
semanticscholar   +1 more source

Reactive Oxygen Species, Oxidative Damage, and Antioxidative Defense Mechanism in Plants under Stressful Conditions

open access: yes, 2012
Reactive oxygen species (ROS) are produced as a normal product of plant cellular metabolism. Various environmental stresses lead to excessive production of ROS causing progressive oxidative damage and ultimately cell death.
Pallavi Sharma   +3 more
semanticscholar   +1 more source

The Significance of Reactive Oxygen Species and Antioxidant Defense System in Plants: A Concise Overview

open access: yesFrontiers in Plant Science, 2021
In plants, there is a complex and multilevel network of the antioxidative system (AOS) operating to counteract harmful reactive species (RS), the foremost important of which are reactive oxygen species (ROS), and maintain homeostasis within the cell ...
J. Dumanović   +4 more
semanticscholar   +1 more source

Role of mitochondrial reactive oxygen species in homeostasis regulation

open access: yesRedox Report, 2022
Mitochondria are the main source of reactive oxygen species (ROS) in cells. Early studies have shown that mitochondrial reactive oxygen species (mROS) are related to the occurrence and adverse outcomes of many diseases, and are thus regarded as an ...
Bao-Yi Zhang   +7 more
semanticscholar   +1 more source

Reactive oxygen species in inflammation and tissue injury.

open access: yesAntioxidants and Redox Signaling, 2014
Reactive oxygen species (ROS) are key signaling molecules that play an important role in the progression of inflammatory disorders. An enhanced ROS generation by polymorphonuclear neutrophils (PMNs) at the site of inflammation causes endothelial ...
M. Mittal   +4 more
semanticscholar   +1 more source

Cell Morphology, Viability, Osteocalcin Activity, and Alkaline Phosphatase Activity in Milled versus Unmilled Surface of the Femoral Head

open access: yesJournal of Orthopaedic Surgery, 2016
Purpose To evaluate cellular activity in milled versus unmilled surface of the femoral head in 21 patients who underwent robot-assisted total hip arthroplasty (THA). Methods The femoral head of 21 consecutive patients who underwent robot-assisted THA for
Kee Hyung Rhyu   +3 more
doaj   +1 more source

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