Figure 4From: PSMB2 and RPL32 are suitable denominators to normalize gene expression profiles in bronchoalveolar cellsEquivalence test for ten housekeeping genes in the 2nd cohort subgroups based on the presence of disease, involvement of parenchyma, presence of Löfgren's syndrome, multi-organ involvement, smoking status, gender, and bronchoalveolar lavage cellular composition. Mean differences were calculated as follows: Mean(sarcoidosis patients)-Mean(control subjects), Mean(patients with involvement of parenchyma: CXR stages II/III)-Mean(patients without involvement of parenchyma: CXR stage I), Mean(Löfgren's syndrome patients)-Mean(non-Löfgren's syndrome patients), Mean(multi-organ involvement)-Mean(involvement of lung only), Mean(smokers)-Mean(non-smokers), Mean(males)-Mean(females), and Mean(pathological BAL cell count)-Mean(normal BAL cell count) for macrophages, lymphocytes, neutrophils and eosinophils. For more details see the legend to Fig. 2.Back to article page