The crossing of the blood–brain barrier (BBB) along with rescuing degenerated neurons, acting on Alzheimer’s disease quercetin was loaded into colloidal formulation symbolled as RMP-7-Lf-QU-LS by Kuo and Tsao [189], where RMP-7 is a bradykinin analog, lactoferrin (Lf), quercetin (QU), and liposomes (LS). This evidence concerns the gene LTF and Alzheimer disease.