title: Predicting blood-brain barrier penetration from molecular weight and number of polar atoms.
abstract: A simple three-descriptor model to predict blood-brain barrier is derived from a training set of 78 compounds: logBB=-9.880 x 10(-6)M(W)(2)+7.339 x 10(-3)M(W)-0.2268n(pol)-0.1143 (n=78, r(2)=0.74), where logBB is the logarithm of the ratio of the steady-state concentration of the compound in the brain to concentration in the blood, M(W) is the molecular weight, n(pol) is the number of polar atoms (oxygen, nitrogen, and attached hydrogen), n is the number of compounds, and r is the correlation coefficient. The model is validated through use of leave-one-out procedure and an external test set (25 compounds). The model is suitable for the rapid prediction of the blood-brain barrier penetration of drug candidates because of its predictive ability and simplicity.
authors.affiliation: Department of Pharmacy, Zhejiang University City College, Hangzhou, PR China.
authors.forename: Xu-Chun
authors.initials: XC
authors.lastname: Fu
authors.forename: Guo-Ping
authors.initials: GP
authors.lastname: Wang
authors.forename: Hai-Li
authors.initials: HL
authors.lastname: Shan
authors.forename: Wen-Quan
authors.initials: WQ
authors.lastname: Liang
authors.forename: Jian-Qing
authors.initials: JQ
authors.lastname: Gao
mesh_terms: D001812:Blood-Brain Barrier; D008954:Models, Biological; D015233:Models, Statistical; D008970:Molecular Weight; D010539:Permeability; D011237:Predictive Value of Tests