Absorbed effective constituent–target–disease network induced by the absorbed effective constituents of lignans from S. chinensis. The purple cycle indicates the absorbed effective constituents of lignans from S. chinensis, the yellow cycle is the common targets that contact the absorbed constituents and AD, the green cycle is the relative targets of AD and absorbed effective constituents, the blue cycle is the representative targets only related to AD, and the pink cycle is the targets only related to absorbed effective constituents; nodes represent for genes, proteins, endogenous compounds, and metabolic pathways.