passages.id: split_4_test_1991_passage
passages.type: progene_text
passages.text: Pretreatment with 0.4 % sodium hyaluronate in 9 rats reduced mean IL-6 17 % compared with stressed controls but again prevented any increase from baseline , since the value was 898.6 +/- 299.3 before and 824.4 +/- 196.4 pg. / ml. after stress ( p = 0.03 ) .