Fig. 2From: The endotoxin hypothesis of Alzheimer’s diseaseSerum and CSF (cerebralspinal fluid) measurements of LPS endotoxin by sandwich ELISA in AD and MCI patients and age-matched controls. Reprinted from Andreadou EG et al. 2021, with permission from Elsevier. A405 is the absorbance measurement proportional to the amount of LPSBack to article page