Metabolomics in COPD Acute Respiratory Failure Requiring Noninvasive Positive Pressure Ventilation.

Can Respir J · 2017 · PMC5748128 · PMID 29391845

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did not reach statistical significanceno p-value reported

Patients with AECOPD likely suffered from more advanced emphysema compared to the stable COPD subjects, but glycine levels were low in all type of respiratory failures (did not reach statistical significance for CHF) indicating another mechanism for the low glycine levels.

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