GLRX and hypersensitivity pneumonitis: By contrast, the expression of Grxs seem to be reduced in sarcoidosis, as depicted by the only study available on the subject which investigated the expression of Grx in human healthy lung versus interstitial lung diseases including sarcoidosis (17 cases), but also extrinsic allergic alveolitis (EAA, also known as hypersensitivity pneumonitis or HP) and UIP (5 cases) [75].