The roles of enzymatic antioxidant defenses in the natural tolerance of environmental
stresses that impose changes in oxygen availability and oxygen consumption on animals is …

The cessation of blood flow followed by a reperfusion period results in severe damages to
cell structures. This induces a complex cascade of events involving, more particularly, a loss …

The purpose of this work was to evaluate the response of the antioxidant system of goldfish
Carassius auratus during anoxia and reoxygenation. The exposure of goldfish to 8 h of …

Publisher Summary Oxygen is essential for most life forms. The full reduction of oxygen to H
2 O by cytochrome oxidase is a key step in the mechanism of aerobic ATP formation …

Although cardiac endogenous antioxidants have been reported to be oxidized and
decreased by ischemia-reperfusion, little is known whether the changes in these …

Antioxidant and pro-oxidant systems were studied in overwintering larvae of two cold-hardy
gall insect species, the freeze-tolerant fly Eurosta solidaginis and the freeze-avoiding moth …

The biochemical adaptations of cellular antioxidant defenses that permit anoxia-tolerant
animals to deal effectively with rapid and large changes in oxygen availability, and hence …

Electron paramagnetic resonance (EPR) spectra of complex biological systems contain
information about the paramagnetic centres present. Retrieving such information is …

Mammalian hibernators experience repeated hypoxic ischaemia and reperfusion during the
torpor–arousal cycle. We investigated levels of oxidative stress, antioxidant capacity, and the …

Mitochondria are widely known as a major source of reactive oxygen and nitrogen species
for the cardiovascular system. Numerous studies established that superoxide anion radical …