Results 81 to 90 of about 5,156 (193)

NUBIScan, an in silico approach for prediction of nuclear receptor response elements [PDF]

open access: yes, 2002
Nuclear receptors (NRs) are transcription factors activated by a multitude of hormones, other endogenous substances, and exogenous molecules. These proteins modulate the regulation of target genes by contacting their promoter or enhancer sequences at ...
Kaufmann, M. R.   +3 more
core  

Dexamethasone‐Mediated Regulation of CYP3A4 and UGTs in Human Hepatoma HuH‐7 Cells

open access: yesFundamental &Clinical Pharmacology, Volume 40, Issue 3, May 2026.
ABSTRACT Background The application of human hepatic cell lines to early drug discovery and development instead of human primary hepatocytes (HPHs) has been limited because of the low level of drug‐metabolizing enzymes (DMEs). Objective The study aimed to evaluate the effects of dexamethasone (DEX) treatment on DME expression, activities, and ...
Hana Yu   +4 more
wiley   +1 more source

Farnesoid x Receptor Deficiency Promotes Hepatocytic Injury in Cyp2c70‐Deficient Mice With a Human‐Like Bile Acid Composition

open access: yesLiver International, Volume 46, Issue 5, May 2026.
ABSTRACT Background and Aims Loss‐of‐function mutations in bile acid (BA)‐activated farnesoid x receptor (FXR/NR1H4) cause severe neonatal liver pathology in humans, earlier referred to as progressive familial intrahepatic cholestasis type 5 (PFIC5). However, Fxr‐deficient mice do not develop early‐onset liver disease, possibly due to the predominance ...
Hilde D. de Vries   +16 more
wiley   +1 more source

Expressão dos genes Receptor Pregnano X (PXR), Citocromo P4503A (CYP3A) e resistência a multidrogas 1(MDR1) em fígado de peixe-zebra (Danio rerio) [PDF]

open access: yes, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pós-Graduação em Biotecnologia.O receptor pregnano X (PXR) é um receptor nuclear envolvido na regulação transcricional de enzimas envolvidas no ...
Bresolin, Taise
core  

Regulation of cytochrome P450 mRNA expression in primary porcine hepatocytes by selected secondary plant metabolites from chicory (Cichorium intybus L.)

open access: yes, 2013
Chicory (Cichorium intybus) has been shown to induce enzymes of pharmacokinetic relevance (cytochrome P450; CYP). The aim of this study was to investigate the effects of selected secondary plant metabolites with a global extract of chicory root, on the ...
Ekstrand, Bo   +2 more
core   +1 more source

Regulation of CAR and PXR Expression in Health and Disease

open access: yesCells, 2020
Pregnane X receptor (PXR, NR1I2) and constitutive androstane receptor (CAR, NR1I3) are members of the nuclear receptor superfamily that mainly act as ligand-activated transcription factors. Their functions have long been associated with the regulation of
Martine Daujat-Chavanieu   +1 more
doaj   +1 more source

Impact of Concomitant Metamizole Treatment on the Exposure of Mould‐Active Triazoles

open access: yesMycoses, Volume 69, Issue 5, May 2026.
ABSTRACT Aim Metamizole is an analgesic drug with moderate cytochrome P450 (CYP) inductive properties. The antifungal triazoles are metabolized by several CYP enzymes, but the interaction with metamizole remains poorly described. We investigated the influence of metamizole on the exposure of voriconazole, isavuconazole, and posaconazole.
Dorian Vanneste   +12 more
wiley   +1 more source

Examination of Potential Ligands of the Constitutive Androstane Receptor CAR [PDF]

open access: yes, 2010
Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of Pharmacology and Toxicology Candidate: Mgr. Vojtěch Zadák Supervisor: Doc. PharmDr. Petr Pávek, Ph.D.
Zadák, Vojtěch
core  

Pregnane X receptor, constitutive androstane receptor and hepatocyte nuclear factors as emerging players in cancer precision medicine

open access: yes, 2016
Great research effort has been focused on elucidating the contribution of host genetic variability on pharmacological outcomes in cancer. Nuclear receptors have emerged as mediators between environmental stimuli and drug pharmacokinetics and ...
RONCATO, ROSSANA   +3 more
core   +1 more source

DNA elements for constitutive androstane receptor- and pregnane X receptor-mediated regulation of bovine CYP3A28 gene.

open access: yesPLoS ONE, 2019
The regulation of cytochrome P450 3A (CYP3A) enzymes is established in humans, but molecular mechanisms of its basal and xenobiotic-mediated regulation in cattle are still unknown.
Mery Giantin   +10 more
doaj   +1 more source

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