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. 2018 Aug 9;315(5):L752–L764. doi: 10.1152/ajplung.00208.2018

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Fig. 1. — Bioenergetic profiles of macrophages (MAC) sampled from different regions of the human lung. MAC obtained by induced sputum (IS), bronchial fraction (BF), or bronchoalveolar lavage (BAL) from normal volunteers undergoing extracellular flux analysis. Basal oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) as measures of mitochondrial respiration and glycolysis activities, respectively, were assessed. Basal OCR and ECAR were measured in the presence of 10 mM glucose and 2 mM l-glutamine. A: a comparative representation of the range of bioenergetics profiles of MAC obtained by IS or BAL. B–D: plots of the OCR vs. ECAR for cell samples recovered by IS or BAL. Shown is goodness of fit, slope, and P for individual samples representing IS (n = 16), BF (n = 15), and BAL (n = 25).