LDH release after (A) H2O2 interference and (B) Aβ1–42 interference in an in vitro model of Alzheimer's disease. #P<0.05, vs. control group; *P<0.05, vs. model group; **P<0.05, vs. model group. LDH, lactate dehydrogenase; Aβ, â-amyloid peptide; PhGs, phenylethanoid glycosides.