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- W2103998237 abstract "1. This study investigated the effects of increased antioxidants (administration of water-soluble fullerenol-1 and pre-exposure to chronic hypoxia) as well as an iron-chelating agent (deferoxamine) on exsanguination-induced noncholinergic airway constriction in guinea-pigs. 2. Fullerenol-1 usually did not cause significant alteration in respiratory function (lung volumes, dynamic respiratory compliance, maximal expiratory flow at 50% total lung capacity (Vmax50), and forced expiratory flow at 0.1 s (FEV 0.1) at low (200 micrograms kg-1) or at high doses (2 mg kg-1), except that it produced a slight bronchial constricting action (decreases in both Vmax 50 and FEV 0.1) at high doses (2 mg kg-1) via intratracheal instillation. 3. Beginning 15 min after exsanguination, there was a marked temporal decrease in FEV 0.1, indicating a gradual increase in airway constriction with time. 4. Administration of either fullerenol-1 or deferoxamine, or pre-exposure to chronic hypoxia significantly ameliorated the exsanguination-induced bronchoconstriction. The results provide evidence that oxygen radicals play an important role in exsanguination-induced airway constriction. 5. The significant effects of the increased antioxidants and deferoxamine,however, cannot be explained by the alteration in either tracheal neutral endopeptidase activity or lung tissue substance P level." @default.
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- W2103998237 date "1997-08-01" @default.
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- W2103998237 title "Water-soluble fullerene derivatives attenuate exsanguination-induced bronchoconstriction of guinea-pigs" @default.
- W2103998237 doi "https://doi.org/10.1046/j.1365-2680.1997.00461.x" @default.
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