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Tuning Properties for Blood-Brain Barrier Permeation: A Statistics-Based Analysis.
ACS Chemical Neuroscience ( IF 4.1 ) Pub Date : 2019-12-18 , DOI: 10.1021/acschemneuro.9b00541
Maria Dichiara 1 , Benedetto Amata 1 , Rita Turnaturi 1 , Agostino Marrazzo 1 , Emanuele Amata 1
Affiliation  

In the effort to define a set of rules useful in tuning the properties for a successful blood-brain barrier (BBB) permeation, we statistically analyzed a set of 328 compounds and correlated their experimental in vivo logBB with a series of computed descriptors. Contingency tables were constructed, observed and expected distributions were calculated, and chi-square (χ2) distributions were evaluated. This allowed to point out a significant dependence of certain physicochemical properties in influencing the BBB permeation. Of over 15 computed descriptors, 9 resulted to be particularly important showing highly significant χ2 distribution: polar surface area (χ2 = 66.79; p = 1.08 × 10-13), nitrogen and oxygen count (χ2 = 51.17; p = 2.06 × 10-10), logP (χ2 = 47.38; p = 1.27 × 10-9), nitrogen count (χ2 = 38.29; p = 9.77 × 10-8), logD (χ2 = 36.80; p = 36.80), oxygen count (χ2 = 35.83; p = 3.13 × 10-7), ionization state (χ2 = 33.02, p = 3.19 × 10-7), hydrogen bond acceptors (χ2 = 30.80; p = 3.36 × 10-6), and hydrogen bond donors (χ2 = 29.29; p = 6.81 × 10-6). Other parameters describing the mass and size of the molecules (molecular weight: 11.18; p = 2.46 × 10-2) resulted in being not significant since the population within the observed and expected distribution was similar. Depending on the combination of the significant descriptors, we set a three cases probabilistic scenario (BBB+, BBB-, BBB+/BBB-) that would prospectively be used to tune properties for BBB permeation.

中文翻译:

血脑屏障渗透的调节特性:基于统计的分析。

为了定义一组规则,这些规则可用于调整血脑屏障(BBB)成功渗透的特性,我们对328种化合物进行了统计分析,并将其实验体内logBB与一系列计算出的描述子相关联。构造列联表,计算观察值和预期分布,并评估卡方(χ2)分布。这允许指出某些物理化学性质对BBB渗透的显着依赖性。在15个以上的计算描述符中,有9个尤为重要,表明χ2分布非常重要:极性表面积(χ2= 66.79; p = 1.08×10-13),氮和氧计数(χ2= 51.17; p = 2.06×10- 10),logP(χ2= 47.38; p = 1.27×10-9),氮数(χ2= 38.29; p = 9.77×10-8),logD(χ2= 36.80; p = 36。80),氧计数(χ2= 35.83; p = 3.13×10-7),电离态(χ2= 33.02,p = 3.19×10-7),氢键受体(χ2= 30.80; p = 3.36×10-6) )和氢键供体(χ2= 29.29; p = 6.81×10-6)。其他描述分子质量和大小的参数(分子量:11.18; p = 2.46×10-2)由于在观察到的和预期的分布内的种群相似,因此并不重要。根据重要描述符的组合,我们设置了三种情况下的概率场景(BBB +,BBB-,BBB + / BBB-),它们有可能被用于调整BBB渗透的特性。其他描述分子质量和大小的参数(分子量:11.18; p = 2.46×10-2)由于在观察到的和预期的分布内的种群相似,因此并不重要。根据重要描述符的组合,我们设置了三种情况下的概率场景(BBB +,BBB-,BBB + / BBB-),它们有可能被用于调整BBB渗透的特性。其他描述分子质量和大小的参数(分子量:11.18; p = 2.46×10-2)由于在观察到的和预期的分布内的种群相似,因此并不重要。根据重要描述符的组合,我们设置了三种情况下的概率场景(BBB +,BBB-,BBB + / BBB-),它们有可能被用于调整BBB渗透的特性。
更新日期:2019-12-19
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