Human xanthine oxidoreductase (XOR) is a multiple-level regulated enzyme, resulting from
a complicated evolutionary process that assigned it many physiological roles. The main …

Nitrate reductase (NR) is a key enzyme for nitrogen acquisition by plants, algae, yeasts, and
fungi. Nitrate, its main substrate, is required for signaling and is widely distributed in diverse …

Xanthine oxidoreductase (XOR) is the enzyme that catalyzes the oxidation of hypoxanthine
to xanthine and xanthine to uric acid and is widely distributed among species. In addition to …

Xanthine oxidoreductase (XOR) could contribute to the pathogenesis of metabolic syndrome
through the oxidative stress and the inflammatory response induced by XOR-derived …

Purinergic signaling is a cell communication pathway mediated by extracellular nucleotides
and nucleosides. Tri-and diphosphonucleotides are released in physiological and …

Given their sessile nature, plants continuously face unfavorable conditions throughout their
life cycle, including water scarcity, extreme temperatures and soil pollution. Among all, metal …

Nearly 30 years have passed since the discovery of xanthine oxidoreductase (XOR) as a
critical source of reactive species in ischemia/reperfusion injury. Since then, numerous …

The term varicose vein refers to the twisted and swollen vein visible under the skin surface
which occurs most commonly in the leg. Epidemiological studies report a varying …

Nitric oxide (• NO, nitrogen monoxide) is one of the most unique biological signaling
molecules associated with a multitude of physiologic and pathological conditions. In order to …

Nitric oxide (NO) is a relevant signal molecule involved in many plant processes. However,
the mechanisms and proteins responsible for its synthesis are scarcely known. In most …