Abstract
Despite the high incidence and poor prognosis of acute lung injury (ALI) and the acute
respiratory distress syndrome (ARDS), it remains challenging to identify patients
who are at highest risk of developing these syndromes, differentiate these syndromes
from other causes of acute respiratory failure, and accurately prognosticate once
the diagnosis is made. The identification and validation of biological markers of
ALI has the potential to ameliorate these challenges by facilitating studies of therapies
aimed at prevention, identifying patients more accurately that have ALI so they can
benefit from evidence-based therapies and enrollment in clinical trials, and determining
which patients are unlikely to have a positive outcome to guide therapeutic choices
and trials of experimental rescue therapies. This article reviews the current state
of biomarker research in ALI/ARDS. New methodologies for identification of novel biomarkers
of ALI, including metabolomics, proteomics, gene expression, and genetic studies are
also discussed.
Keywords
acute lung injury - biomarker - metabolomics - proteomics - genomics - genetics -
acute respiratory distress syndrome