Fig. 7

Differential comparison of ions present in DMEM or AppΔapxICΔapxIIC culture supernatant using LC-MS/MS. Samples were analyzed by LC-MS/MS in full scan positive ion mode. a TIC of DMEM and AppΔapxICΔapxIIC culture supernatant. b XIC m/z 515.2. c XIC m/z 663.6. Black arrows: additional peaks in the culture supernatant