passages.id: split_6_test_3408_passage
passages.type: progene_text
passages.text: The levels of IL-6 and TNF-alpha mRNAs increased both in PD and LBD , but those of BDNF mRNA and protein drastically decreased specifically in LBD , in which neuronal loss was observed not only in the nigro - striatum but also in the hippocampus .