passages.id: split_1_test_2906_passage
passages.type: progene_text
passages.text: In the present study , using immunohistochemical analysis , we performed a time course in mnd mice ( 1 , 4 and 9 months of age ) evaluating the expression and the distribution of astroglial and microglial cells and the expression of both TNF receptors , TNFR-I and TNFR-II .