Pulmonary edema fluid antioxidants are depressed in acute lung injury

被引：33

作者：

Bowler, RP ^{[1
]}

Velsor, LW

Duda, B

Chan, ED

Abraham, E

Ware, LB

Matthay, MA

Day, BJ

机构：

[1] Natl Jewish Med & Res Ctr, Dept Med, Denver, CO USA

[2] Vanderbilt Univ, Dept Med, Nashville, TN USA

[3] Univ Colorado, Hlth Sci Ctr, Dept Med, Div Pulm & Crit Care Med, Denver, CO 80202 USA

[4] Univ Calif San Francisco, Div Pulm Sci & Crit Care Med, Dept Med, San Francisco, CA 94143 USA

来源：

CRITICAL CARE MEDICINE | 2003年 / 31卷 / 09期

关键词：

epithelial lining fluid; pulmonary edema fluid; bronchoalveolar; lavage; ascorbate; urate; glutathione; total antioxidant power; nitrate; nitrite;

D O I：

10.1097/01.CCM.0000085090.06078.8C

中图分类号：

R4 [临床医学];

学科分类号：

1002 ; 100602 ;

摘要：

Objective: To test the hypothesis that low concentrations of distal airspace water-soluble antioxidants are associated with acute lung injury. Design: Prospective, cohort study. Setting: Medical intensive care unit of two tertiary care hospitals. Subjects: Subjects were 29 patients with acute lung injury and 23 normal, healthy, volunteers. Interventions: None. Measurements and Main Results: Pulmonary edema fluid from subjects with acute lung injury was aspirated immediately after intubation. Compared with the bronchoalveolar lavage from normal subjects (corrected for dilution using urea concentrations), undiluted edema fluid from acute lung injury subjects had significantly lower concentrations of the antioxidants urate (757 +/- 232 muM vs. 328 +/- 75 muM), glutathione (138 +/- 25 muM vs. 7 +/- 4 muM), and ascorbate (85 +/- 21 muM vs. 27 +/- 10 muM). Conclusions: Acute lung injury is associated with decreased concentrations of water-soluble antioxidants in the distal airspaces. In acute lung injury, the distal airspace antioxidants ascorbate, urate, and glutathione may play a role in attenuating lung injury.

引用

页码：2309 / 2315

页数：7

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