Oxidative stress (OS) represents a threat to the chemical integrity of biomolecules including
lipids, proteins, and DNA. The associated molecular damage frequently results in serious …

Oxidative stress, which is frequently induced by an overproduction of free radicals (FR),
poses a high risk to human health. Thus, finding efficient strategies for scavenging FR is a …

Methylene blue (MB) is a molecule that has been playing important roles in microbiology
and pharmacology for some time. It has been widely used to stain living organisms, to treat …

Nitrite is one of the players in the broad nitrogen biogeochemical cycle. This nitrogen oxo-
anion is involved in key pathways crucial to life on Earth and to the planetary “recycling” of …

Oxidative stress is frequently caused by an excess of free radicals and has been associated
with a wide variety of health disorders. Therefore, finding strategies for scavenging free …

The present work is focussed on the principles of photodynamic therapy (PDT), emphasizing
the photochemical mechanisms of reactive oxygen species formation and the consequent …

It is now accepted that the anion nitrite, once considered an inert oxidation product of nitric
oxide (NO), contributes to hypoxic vasodilation, physiological blood pressure control, and …

Small increases in physiological nitrite concentrations have now been shown to mediate a
number of biological responses, including hypoxic vasodilation, cytoprotection after …

The ability of phototrophs to convert light into biological energy is critical for life on Earth.
However, there can be deleterious consequences associated with this bioenergetic …

Oxygen, in form of reactive oxygen species (ROS), has been shown to participate in
oxidative stress, one of the major triggers for pathology, but also is a main contributor to …