passages.id: split_5_test_3139_passage
passages.type: progene_text
passages.text: mBSA / IL-1 acute arthritis was reduced in IL-11Ra1 -/- versus WT mice ( histological arthritis score : 10.1 +/- 0.5 versus 12.8 +/- 0.7 , respectively ; P = 0.01 ) .