Comparison of levels of aldehyde oxidase with cytochrome P450 activities in human liver in vitro

1994 ◽  
Vol 48 (1) ◽  
pp. 199-200 ◽  
Author(s):  
A.David Rodrigues
Keyword(s):  
Cytochrome P450 ◽  
Human Liver ◽  
Aldehyde Oxidase

scholarly journals In vitro inhibitory effects of cepharanthine on human liver cytochrome P450 enzymes

2020 ◽  
Vol 58 (1) ◽  
pp. 247-252
Author(s):  
Xunge Zhang ◽  
Ping Feng ◽  
Xinfu Gao ◽  
Bin Wang ◽  
Chunxia Gou ◽  
...  
Keyword(s):  
Cytochrome P450 ◽  
Human Liver ◽  
Cytochrome P450 Enzymes ◽  
Inhibitory Effects ◽  
Liver Cytochrome

scholarly journals Effect of a New Prokinetic Agent DA-9701 Formulated with Corydalis Tuber and Pharbitidis Semen on Cytochrome P450 and UDP-Glucuronosyltransferase Enzyme Activities in Human Liver Microsomes

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Hye Young Ji ◽  
Kwang Hyeon Liu ◽  
Ji Hyeon Jeong ◽  
Dae-Young Lee ◽  
Hyun Joo Shim ◽  
...  
Keyword(s):  
Cytochrome P450 ◽  
Human Liver ◽  
Liver Microsomes ◽  
Human Liver Microsomes ◽  
Udp Glucuronosyltransferase ◽  
Index Value ◽  
Tuber Extract ◽  
Corydalis Tuber

DA-9701 is a new botanical drug composed of the extracts of Corydalis tuber and Pharbitidis semen, and it is used as an oral therapy for the treatment of functional dyspepsia in Korea. The inhibitory potentials of DA-9701 and its component herbs, Corydalis tuber and Pharbitidis semen, on the activities of seven major human cytochrome P450 (CYP) enzymes and four UDP-glucuronosyltransferase (UGT) enzymes in human liver microsomes were investigated using liquid chromatography-tandem mass spectrometry. DA-9701 and Corydalis tuber extract slightly inhibited UGT1A1-mediated etoposide glucuronidation, with 50% inhibitory concentration (IC50) values of 188 and 290 μg/mL, respectively. DA-9701 inhibited CYP2D6-catalyzed bufuralol1′-hydroxylation with an inhibition constant (Ki) value of 6.3 μg/mL in a noncompetitive manner. Corydalis tuber extract competitively inhibited CYP2D6-mediated bufuralol1′-hydroxylation, with aKivalue of 3.7 μg/mL, whereas Pharbitidis semen extract showed no inhibition. The volume in which the dose could be diluted to generate an IC50equivalent concentration (volume per dose index) value of DA-9701 for inhibition of CYP2D6 activity was 1.16 L/dose, indicating that DA-9701 may not be a potent CYP2D6 inhibitor. Further clinical studies are warranted to evaluate thein vivoextent of the observedin vitrointeractions.

Strain Difference of Oxidative Metabolism of the Sedative-hypnotic Zaleplon by Aldehyde Oxidase and Cytochrome P450 In Vivo and In Vitro in Rats

2013 ◽  
Vol 28 (3) ◽  
pp. 269-273 ◽  
Author(s):  
Chiaki Tanoue ◽  
Kazumi Sugihara ◽  
Naoto Uramaru ◽  
Yoko Watanabe ◽  
Yoshitaka Tayama ◽  
...  
Keyword(s):  
Cytochrome P450 ◽  
Oxidative Metabolism ◽  
Strain Difference ◽  
Aldehyde Oxidase
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