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Free ubiquitin is depleted by diacetyl inhalation. A: Western immunoblot of ubiquitin and β-actin in protein from the airway-enriched fraction of air and diacetyl-exposed Dcxr ko2 mice. B: Bar graph of the band intensities in the Western immunoblot. ∗P < 0.05 when compared with air-exposed controls of the same genotype. MW, molecular weight.
