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1.
Anesthesiology ; 134(5): 792-808, 2021 05 01.
Article in English | MEDLINE | ID: covidwho-1202432

ABSTRACT

Acute respiratory distress syndrome is characterized by hypoxemia, altered alveolar-capillary permeability, and neutrophil-dominated inflammatory pulmonary edema. Despite decades of research, an effective drug therapy for acute respiratory distress syndrome remains elusive. The ideal pharmacotherapy for acute respiratory distress syndrome should demonstrate antiprotease activity and target injurious inflammatory pathways while maintaining host defense against infection. Furthermore, a drug with a reputable safety profile, low possibility of off-target effects, and well-known pharmacokinetics would be desirable. The endogenous 52-kd serine protease α1-antitrypsin has the potential to be a novel treatment option for acute respiratory distress syndrome. The main function of α1-antitrypsin is as an antiprotease, targeting neutrophil elastase in particular. However, studies have also highlighted the role of α1-antitrypsin in the modulation of inflammation and bacterial clearance. In light of the current SARS-CoV-2 pandemic, the identification of a treatment for acute respiratory distress syndrome is even more pertinent, and α1-antitrypsin has been implicated in the inflammatory response to SARS-CoV-2 infection.


Subject(s)
Neutrophils/drug effects , Proteinase Inhibitory Proteins, Secretory/administration & dosage , Respiratory Distress Syndrome/drug therapy , alpha 1-Antitrypsin/administration & dosage , Animals , COVID-19/drug therapy , COVID-19/enzymology , COVID-19/immunology , Humans , Immunologic Factors/administration & dosage , Immunologic Factors/immunology , Lung/drug effects , Lung/enzymology , Lung/immunology , Neutrophils/enzymology , Neutrophils/immunology , Proteinase Inhibitory Proteins, Secretory/immunology , Respiratory Distress Syndrome/enzymology , Respiratory Distress Syndrome/immunology , alpha 1-Antitrypsin/immunology
2.
Anesthesiology ; 134(5): 792-808, 2021 05 01.
Article in English | MEDLINE | ID: covidwho-1135903

ABSTRACT

Acute respiratory distress syndrome is characterized by hypoxemia, altered alveolar-capillary permeability, and neutrophil-dominated inflammatory pulmonary edema. Despite decades of research, an effective drug therapy for acute respiratory distress syndrome remains elusive. The ideal pharmacotherapy for acute respiratory distress syndrome should demonstrate antiprotease activity and target injurious inflammatory pathways while maintaining host defense against infection. Furthermore, a drug with a reputable safety profile, low possibility of off-target effects, and well-known pharmacokinetics would be desirable. The endogenous 52-kd serine protease α1-antitrypsin has the potential to be a novel treatment option for acute respiratory distress syndrome. The main function of α1-antitrypsin is as an antiprotease, targeting neutrophil elastase in particular. However, studies have also highlighted the role of α1-antitrypsin in the modulation of inflammation and bacterial clearance. In light of the current SARS-CoV-2 pandemic, the identification of a treatment for acute respiratory distress syndrome is even more pertinent, and α1-antitrypsin has been implicated in the inflammatory response to SARS-CoV-2 infection.


Subject(s)
Neutrophils/drug effects , Proteinase Inhibitory Proteins, Secretory/administration & dosage , Respiratory Distress Syndrome/drug therapy , alpha 1-Antitrypsin/administration & dosage , Animals , COVID-19/drug therapy , COVID-19/enzymology , COVID-19/immunology , Humans , Immunologic Factors/administration & dosage , Immunologic Factors/immunology , Lung/drug effects , Lung/enzymology , Lung/immunology , Neutrophils/enzymology , Neutrophils/immunology , Proteinase Inhibitory Proteins, Secretory/immunology , Respiratory Distress Syndrome/enzymology , Respiratory Distress Syndrome/immunology , alpha 1-Antitrypsin/immunology
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