Abstract
Discovery of naturally occurring boron complexes with organic compounds containing hydroxyl groups, sugars, and polysaccharides, adenosine-5-phosphate, pyridoxine, riboflavin, dehydroascorbic acid, and pyridine nucleotides led to the reassessment of the biochemical role of boron. Boron's anti-inflammatory actions were claimed but not yet demonstrated. This study investigated the effects of calcium fructoborate (CF) on the human polymorphonuclear neutrophils (PMN) that play a central role in the inflammatory response. Our results demonstrated that CF exposure induced a dose-dependent decrease in cell viability. Treatment of PMN cells, for 24 h, with 22,500 microM CF led to a decrease in cell viability by 61.1%, an inhibition of respiratory burst by 92.9% in the case of fMLP-stimulated cells, a diminution of intracellular level of superoxide anion with 59.3%, and a stimulation of superoxide dismutase activity by 72% in unstimulated PMN cells. Altogether, these results suggest the antioxidant and anti-inflammatory properties of CF.
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