Quantitative structure-toxicity relationship model for acute toxicity of organophosphates via multiple administration routes in rats and mice

2021 ◽  
Vol 401 ◽  
pp. 123724
Author(s):  
Liang-Liang Wang ◽  
Jun-Jie Ding ◽  
Li Pan ◽  
Li Fu ◽  
Jia-Hao Tian ◽  
...  
2014 ◽  
Vol 665 ◽  
pp. 571-574 ◽  
Author(s):  
Zhi Xiang Zhou ◽  
Yang Hua Liu

Acute toxicity is an important toxicological endpoint which poses a great concern being the major determinants of health problem, a quantitative structure toxicity relationship (QSTR) study was performed for the prediction of the acute toxicity of alkylbenzenes. The molecular descriptors of alkylbenzenes have been calculated with semi-empirical AM1 and E-dragon methods, and QSTR model for mice via the oral LD50 model of alkylbenzenes was developed using multiple linear regression (MLR) analysis.


2020 ◽  
Vol 3 (2) ◽  
pp. 107-126
Author(s):  
Purwaniati Purwaniati

AbstrakProses penemuan dan pengembangan obat merupakan proses panjang yang memerlukan banyak waktu dan biaya. Ada banyak calon molekul obat yang gagal mencapai pasaran karena alasan toksisitasnya yang tinggi, sehingga harus dapat diidentifikasi sedini mungkin. Hubungan kuantitatif struktur toksisitas (HKST) merupakan salah satu metode in silico yang cukup tangguh untuk memprediksi toksisitas. HKST merupakan persamaan matematis yang dibentuk dari variabel data endpoint toksisitas seperti LD50 sebagai variabel terikat dan sejumlah deskriptor sebagai variable bebas yang dihitung dari senyawa-senyawa dalam training set. Persamaan HKST kemudian digunakan untuk memprediksi toksisitas senyawa baru.Kata kunci : toksisitas, hubungan kuantitatif struktur toksisitas (HKST)AbstractThe process of drug discovery and development is a long process that requires a lot of time and costly. There are many prospective drug molecules that fail to reach the market due to high toxicity reasons, so they must be identified as early as possible. The quantitative structure toxicity relationship  (QSTR) is one of the in silico methods that is strong enough to predict toxicity. QSTR is a mathematical equation formed from endpoint toxicity data variables such as LD50 as a bound variable and a number of descriptors as independent variables calculated from the compounds in the training set. The QSTR equation is then used to predict the toxicity of new compounds.Keywords: toxicity, quantitative structure toxicity relationship (QSTR)


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