A considerable amount of evidence shows that reactive oxygen species (ROS) in the mammalian brain are directly responsible for cell and tissue function and dysfunction. Excessive reactive oxygen species contribute to various conditions including inflammation, diabetes mellitus, neurodegenerative diseases, tumor formation, and mental disorders such as depression. Increased intracellular calcium ...

Cancer Therapy In article number 2202694, Dong-Hyun Kim and co-workers develop reactive oxygen species (ROS)–responsive biodegradable metallic nanoparticles that can be used for various biomedical applications. Given the challenges of non-biodegradability potent inorganic nanoparticles, introduction a ROS-responsive cleavable hierarchical supra-nanostructure provides an exciting opportunity ROS...

Reactive oxygen species (ROS) are highly reactive reduced oxygen molecules. Recent studies have shown that production of ROS occurs in response to many physiological stimuli in plant cells, including pathogen attack, hormone signaling, polar growth, and gravitropism. Evidence is emerging that ROS can function as cellular second messengers that are likely to modulate many different proteins lead...

Front Cover: Chronic wound generates high levels of reactive oxygen species (ROS), which inhibits normal healing process. In article number 2200234, Justin J. Chung and co-workers fabricate ROS suppressive antioxidant hydrogel by chemically cross-linking kraft lignin with gelatin. The flexible lignin-gelatin is able to suppress ROS, exhibit antibacterial activity.

Reactive oxygen species (ROS) play a key role in a variety of biotic and abiotic stress conditions, therefore their direct measurement in vivo is of special importance. In this study, we describe two dansyl-based ROS sensors, the singlet oxygen specific DanePy; HO1889NH, which is reactive to both singlet oxygen and superoxide radicals and a rhodaminebased singlet oxygen sensor, HO-2941. In orde...

This review will focus on the role of reactive oxygen species in the cellular and tissue effects of low level light therapy (LLLT). Coincidentally with the increase in electron transport and in ATP, there has also been observed by intracellular fluorescent probes and electron spin resonance an increase in intracellular reactive oxygen species (ROS) such as superoxide, hydrogen peroxide, singlet...

Oxidative DNA damage (ODD) by reactive oxygen species (ROS) or nitrogen (RNS) is an inevitable tradeoff for using oxidation processes living cells as a source of energy [...]

ROS (reactive oxygen species) and RNS (reactive nitrogen species) are central to the innate immunity that protects us from infection, but also contribute to degenerative diseases and possibly aging. However, ROS and RNS are increasingly recognized to contribute to physiological signalling. This review briefly describes the main interactions between ROS and RNS and shows how their origins, chemi...

Many years of research have seen the investigation natural antioxidants and dietary supplements as functional foods with potential to prevent oxidative stress due scavenging reactive oxygen species (ROS) nitrogen (RNS) [...]

Reactive oxygen species (ROS) are formed enzymatically, chemically, photochemically, and by irradiation of food. They are also formed by the decomposition and the inter-reactions of ROS. Hydroxy radical is the most reactive ROS, followed by singlet oxygen. Reactions of ROS with food components produce undesirable volatile compounds and carcinogens, destroy essential nutrients, and change the fu...