Increased risk of vincristine neurotoxicity associated with low CYP3A5 expression genotype in children with acute lymphoblastic leukemia

…, EA MacGill, AS Lehmann, AR Topletz… - Pediatric blood & …, 2011 - Wiley Online Library
Background This study evaluates the relationship between cytochrome P450 (CYP) 3A5
genotype and vincristine‐induced peripheral neuropathy (VIPN) in children with precursor B …

Comparison of the function and expression of CYP26A1 and CYP26B1, the two retinoic acid hydroxylases

AR Topletz, JE Thatcher, A Zelter, JD Lutz, S Tay… - Biochemical …, 2012 - Elsevier
All-trans-retinoic acid (atRA) is an important signaling molecule in all chordates. The cytochrome
P450 enzymes CYP26 are believed to partially regulate cellular concentrations of atRA …

Induction of CYP26A1 by metabolites of retinoic acid: evidence that CYP26A1 is an important enzyme in the elimination of active retinoids

AR Topletz, S Tripathy, RS Foti, JA Shimshoni… - Molecular …, 2015 - ASPET
All-trans-retinoic acid (atRA), the active metabolite of vitamin A, induces gene transcription
via binding to nuclear retinoic acid receptors (RARs). The primary hydroxylated metabolites …

Ultra-high performance liquid chromatography tandem mass-spectrometry for simple and simultaneous quantification of cannabinoids

R Jamwal, AR Topletz, B Ramratnam… - … of Chromatography B, 2017 - Elsevier
Cannabis is used widely in the United States, both recreationally and for medical purposes.
Current methods for analysis of cannabinoids in human biological specimens rely on …

The relative contributions of CYP3A4 and CYP3A5 to the metabolism of vinorelbine

AR Topletz, JB Dennison, RJ Barbuch… - Drug Metabolism and …, 2013 - ASPET
Vinorelbine is a semisynthetic vinca alkaloid used in the treatment of advanced breast and
non-small cell lung cancers. Vincristine, a related vinca alkaloid, is 9-fold more efficiently …

[HTML][HTML] Stereoselective formation and metabolism of 4-hydroxy-retinoic Acid enantiomers by cytochrome p450 enzymes

JA Shimshoni, AG Roberts, M Scian, AR Topletz… - Journal of Biological …, 2012 - ASBMB
All-trans-retinoic acid (atRA), the major active metabolite of vitamin A, plays a role in many
biological processes, including maintenance of epithelia, immunity, and fertility and regulation …

[HTML][HTML] Pharmacogenetic predictors of nausea and vomiting of pregnancy severity and response to antiemetic therapy: a pilot study

…, JL Renbarger, CL McCormick, AR Topletz… - BMC pregnancy and …, 2013 - Springer
Background Nausea and vomiting of pregnancy (NVP) is a common condition. The objective
of this study was to evaluate the association between response to antiemetics in the …

Toxicokinetics and physiologically based pharmacokinetic modeling of the shellfish toxin domoic acid in nonhuman primates

…, R Petroff, S Shum, B Crouthamel, AR Topletz… - Drug Metabolism and …, 2018 - ASPET
Domoic acid (DA), a neurotoxin, is produced by marine algae and has caused toxications
worldwide in animals and humans. However, the toxicokinetics of DA have not been fully …

Hepatic Cyp2d and Cyp26a1 mRNAs and activities are increased during mouse pregnancy

AR Topletz, HN Le, N Lee, JD Chapman, EJ Kelly… - Drug Metabolism and …, 2013 - ASPET
There is considerable evidence that drug disposition is altered during human pregnancy
and based on probe drug studies, CYP2D6 activity increases during human pregnancy. The …

[HTML][HTML] Scaling in vitro activity of CYP3A7 suggests human fetal livers do not clear retinoic acid entering from maternal circulation

AR Topletz, G Zhong, N Isoherranen - Scientific Reports, 2019 - nature.com
… , Dr Ariel Topletz and Dr Guo Zhong conducted the experiments and all three authors wrote
the manuscript. Parts of the work in this manuscript were included in Dr Ariel Topletz’s PhD …