Quaternary ammonium-linked glucuronidation of trans-4-hydroxytamoxifen, an active metabolite of tamoxifen, by human liver microsomes and UDP-glucuronosyltransferase 1A4

2006 ◽  
Vol 71 (9) ◽  
pp. 1358-1369 ◽  
Author(s):  
Kenichiro Ogura ◽  
Yuko Ishikawa ◽  
Teppei Kaku ◽  
Takahito Nishiyama ◽  
Tomokazu Ohnuma ◽  
...  
Keyword(s):  
Quaternary Ammonium ◽  
Active Metabolite ◽  
Human Liver ◽  
Liver Microsomes ◽  
Human Liver Microsomes ◽  
Udp Glucuronosyltransferase

Quaternary ammonium-linked glucuronidation of tamoxifen by human liver microsomes and UDP-glucuronosyltransferase 1A4

2004 ◽  
Vol 67 (11) ◽  
pp. 2093-2102 ◽  
Author(s):  
Teppei Kaku ◽  
Kenichiro Ogura ◽  
Takahito Nishiyama ◽  
Tomokazu Ohnuma ◽  
Kei Muro ◽  
...  
Keyword(s):  
Quaternary Ammonium ◽  
Human Liver ◽  
Liver Microsomes ◽  
Human Liver Microsomes ◽  
Udp Glucuronosyltransferase

Selective Inhibition of Cytochrome P450 2D6 by Sarpogrelate and Its Active Metabolite, M-1, in Human Liver Microsomes

2013 ◽  
Vol 42 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Doo-Yeoun Cho ◽  
Soo Hyeon Bae ◽  
Joeng Kee Lee ◽  
Yang Weon Kim ◽  
Bom-Taeck Kim ◽  
...  
Keyword(s):  
Cytochrome P450 ◽  
Active Metabolite ◽  
Human Liver ◽  
Liver Microsomes ◽  
Selective Inhibition ◽  
Human Liver Microsomes ◽  
Cytochrome P450 2D6 ◽  
P450 2D6

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.

In vitro hepatic conversion of the anticancer agent nemorubicin to its active metabolite PNU-159682 in mice, rats and dogs: A comparison with human liver microsomes

2008 ◽  
Vol 76 (6) ◽  
pp. 784-795 ◽  
Author(s):  
Luigi Quintieri ◽  
Marianna Fantin ◽  
Pietro Palatini ◽  
Sara De Martin ◽  
Antonio Rosato ◽  
...  
Keyword(s):  
Active Metabolite ◽  
Human Liver ◽  
Anticancer Agent ◽  
Liver Microsomes ◽  
Human Liver Microsomes
Sign in / Sign up

Export Citation Format

Share Document