passages.id: split_1_test_2232_passage
passages.type: progene_text
passages.text: Growing evidence obtained from human genomic analysis and antigen - challenged transgenic mice suggests that interleukin-9 ( IL-9 ) is a candidate factor in immunoglobulin E ( IgE ) production and thus is thought to be associated with bronchial inflammation and bronchial hyperresponsiveness ( BHR ) .