Abstract:
:Analysis of mRNAs from liver biopsy samples of patients with chronic hepatitis C revealed that the levels of nuclear receptor expression were correlated with those of drug-metabolizing enzymes and transporters in relation to the development of fibrosis. Overall, the median mRNA level was largely dependent on fibrosis stage (F), and that for stage 3 patients (F3) was about 50% less than that for F1 patients. Levels of expression of AhR, together with CAR and PXR, were lowest in livers of F3 patients. Multivariate linear regression analysis revealed that AhR expression appeared to be involved in the regulation of CYP1A2, 2E1, 2D6, UGT1A, MDR1/3, MRP2/3, NTCP and OCT1 in the livers of patients with chronic hepatitis C. These results suggest that downregulation of AhR during the progression of liver fibrosis is associated with decreased expression levels of these phase I and II enzymes and drug transporters during inflammation-related signal transduction between AhR and other nuclear receptors.
journal_name
Drug Metab Pharmacokinetjournal_title
Drug metabolism and pharmacokineticsauthors
Hanada K,Nakai K,Tanaka H,Suzuki F,Kumada H,Ohno Y,Ozawa S,Ogata Hdoi
10.2133/dmpk.dmpk-11-rg-077subject
Has Abstractpub_date
2012-01-01 00:00:00pages
301-6issue
3eissn
1347-4367issn
1880-0920pii
JST.JSTAGE/dmpk/DMPK-11-RG-077journal_volume
27pub_type
杂志文章abstract::The injectable form of oxycodone contains hydrocotarnine that is supposed to potentiate the analgesic effect of oxycodone with unknown mechanism(s). In this study, the effects of hydrocotarnine on the cytochrome P450 (CYP) and P-glycoprotein (P-gp) were investigated. Hydrocotarnine did not induce a significant change ...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.24.108
更新日期:2009-01-01 00:00:00
abstract::Thirty-nine genetic variations, including thirty novel ones, were found in the human SLC29A1 gene, which encodes equilibrative nucleoside transporter 1, from 256 Japanese cancer patients administered gemcitabine. The found novel variations included -8,166G>A, -81,10A>G, -7,947G>A, -7,789T>C, -5,595G>A, -3,803_-3,783de...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.21.248
更新日期:2006-06-01 00:00:00
abstract::Most cephalosporin antibiotics are excreted into urine via glomerular filtration and active tubular secretion by renal organic anion transporters. In this study, we investigated the interaction of cephalosporins with rat organic anion transporter rOAT1, mainly expressed at the basolateral membrane of the renal proxima...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.17.125
更新日期:2002-01-01 00:00:00
abstract::Morphine is one of the strongest analgesics and is commonly used for the treatment of chronic pain. The pharmacokinetic properties of morphine are, in part, modulated by P-glycoprotein (P-gp). We previously reported that intestinal P-gp expression levels are influenced via the activation of inducible nitric oxide synt...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.dmpk-11-rg-051
更新日期:2011-01-01 00:00:00
abstract::The concentration and distribution of a drug or its metabolites in tissues are key factors for understanding drug efficacy or toxicity. Conventional pharmacokinetic studies show that the plasma concentration of a drug is often unrelated to the intra-tissue concentration. Moreover, it is difficult to predict the distri...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章,评审
doi:10.1016/j.dmpk.2019.04.006
更新日期:2019-08-01 00:00:00
abstract::Troglitazone induced an idiosyncratic, hepatocellular injury-type hepatotoxicity in humans. Statistically, double null genotype of glutathione S-transferase isoforms, GSTT1 and GSTM1, was a risk factor, indicating a low activity of the susceptible patients in scavenging chemically reactive metabolites. CYP3A4 and CYP2...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章,评审
doi:10.2133/dmpk.dmpk-10-rv-090
更新日期:2011-01-01 00:00:00
abstract::Five novel single nucleotide polymorphisms (SNPs) were found in the EPHX1 gene from 96 Japanese epileptic patients. The detected SNPs were as follows: 1) SNP, MPJ6_EX1009; GENE NAME, EPHX1 ACCESSION NUMBER, NT_004525.12; LENGTH, 25 bases; 5'-CCTCACTTCAGTG/ACTGGGCTTTGCC-3'. 2) SNP, MPJ6_EX1013; GENE NAME, EPHX1; ACCESS...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.18.150
更新日期:2003-01-01 00:00:00
abstract::The hepatic uptake transporter organic anion transporting polypeptide (OATP) 1B1 is inhibited by some uremic toxins; however, direct inhibition can only partially explain the delayed systemic elimination of substrate drugs in renal failure patients. This study aimed to examine the long-lasting inhibition of OATP1B1 by...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2020.09.001
更新日期:2020-12-01 00:00:00
abstract::Cytochrome P450 2A6 (CYP2A6) is an enzyme involved in the metabolism of tobacco carcinogens, which are important risk factors in lung cancer. We and others have previously reported that CYP2A6*4, a whole-gene deletion polymorphism, is associated with lower risk of lung cancer than the wild-type allele. However, the ge...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2015.04.002
更新日期:2015-08-01 00:00:00
abstract::Nevirapine (NVP) is widely used as a non-nucleoside reverse transcriptase inhibitor of HIV-1, however, it is associated with severe skin and liver injury. The mechanisms of these adverse reactions are not yet clear, but the metabolic activation of NVP is thought to be related to the injury process. Until now, several ...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2020.01.006
更新日期:2020-04-01 00:00:00
abstract::Prothrombin time (PT) has been widely used for measuring anticoagulation intensity under rivaroxaban therapy, but precise information has not been well established yet. Consecutive 96 non-valvular atrial fibrillation (NVAF) under rivaroxaban between Jan/June, 2015 were recruited. Serum concentration (SC) and PT with 5...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2018.02.002
更新日期:2018-08-01 00:00:00
abstract::Chemotherapy-induced neutropenia is one of the major adverse events which results in the reduction of chemotherapy. Doxorubicin is a substrate of the adenosine triphosphate-binding cassette subfamily B member 1 (ABCB1) transporter; reportedly, ABCB1 polymorphisms influence doxorubicin pharmacokinetics. We evaluated th...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2014.09.009
更新日期:2015-04-01 00:00:00
abstract::Nifedipine is one of drugs that have been suggested to undergo significant first-pass metabolism by cytochrome P450 (CYP) 3A in the intestine, based mainly on pharmacokinetic analyses of in vivo observations. To further substantiate this suggestion, we examined the metabolic extraction of nifedipine from the rat small...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.17.546
更新日期:2002-01-01 00:00:00
abstract::Genetic factors have a significant impact on the PK variability of EFV, much higher than other non-genetic factors, such as demography. In this work we have performed a comprehensive PG analysis of genes encoding the major metabolizing enzymes and transporters of EFV, establishing a clear relationship between the PK p...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2016.06.001
更新日期:2016-10-01 00:00:00
abstract::UDP-glucuronosyltransferases (UGTs) are drug-metabolizing enzymes essential for the metabolism of endogenous substrates and xenobiotics. The cynomolgus macaque is a nonhuman primate species widely used in drug metabolism studies. The molecular characteristics of UGTs have been extensively investigated in humans, but t...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2020.05.001
更新日期:2020-08-01 00:00:00
abstract::Tralokinumab is a human monoclonal antibody in clinical development for asthma and atopic dermatitis that specifically neutralizes interleukin-13. This phase I, single-blind, randomized, placebo-controlled, single ascending-dose study assessed the safety, tolerability, pharmacokinetics (PK), and immunogenicity of subc...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.dmpk.2017.12.001
更新日期:2018-06-01 00:00:00
abstract::This study aimed to develop a drug metabolism prediction platform using knowledge-based prediction models. Site of Metabolism (SOM) prediction models for four cytochrome P450 (CYP) subtypes were developed along with uridine 5'-diphosphoglucuronosyltransferase (UGT) and sulfotransferase (SULT) substrate classification ...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2020.05.007
更新日期:2020-08-01 00:00:00
abstract::Cytochrome P450 (CYP) 3A-related drug-drug interaction (DDI) studies are needed during drug development to determine clinical interaction effects. We aimed to evaluate DDI between sildenafil and two CYP3A inhibitors, clarithromycin and itraconazole, regarding the changes in pharmacokinetics and endogenous markers. An ...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2020.11.003
更新日期:2021-02-01 00:00:00
abstract::To characterize the renal handling of CS-023 (RO4908463), a novel parenteral carbapenem antibiotic, and meropenem in humans, we examined their affinities as substrates to human renal transporters. In vitro studies on the uptake of [14C]CS-023 and [14C]meropenem were conducted using HEK293 cells expressing human organi...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.22.41
更新日期:2007-02-25 00:00:00
abstract::A population pharmacokinetic (PK) model for meropenem in Japanese pediatric patients with various infectious diseases was developed based on 116 plasma concentrations from 50 pediatric patients. The population PK parameters developed in this analysis are useful for calculation of the percent time above minimum inhibit...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.dmpk-11-rg-027
更新日期:2011-01-01 00:00:00
abstract::Nrf2 plays a central role in the response to xenobiotics and oxidative stress. The activation of Nrf2 induces the expression of drug-metabolizing enzymes (DMEs) and is important for cytoprotection. Keap1 is a widely accepted proteasome-dependent regulator of Nrf2. Keap1 was reported to be absent in Caenorhabditis eleg...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2020.06.007
更新日期:2020-10-01 00:00:00
abstract::1. Assay methods to detect drug interaction in toxicological samples were established by determining cytochrome P450 content and its activity in liver samples. The O-dealkylation reaction of 7-alkoxycoumarin was indicated to reflect changes in the molecular forms of P450s, and the enzyme induction or inhibition in the...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.17.379
更新日期:2002-01-01 00:00:00
abstract::DDI could be caused by the inhibition of OATP-mediated hepatic uptakes. The aim of this study is to set the risk criteria for the compounds that would cause DDI via OATP inhibition at the drug discovery stage. The IC50 values of OATP inhibitors for human OATP-mediated atorvastatin uptake were evaluated in the expressi...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2016.05.003
更新日期:2016-10-01 00:00:00
abstract::Trimethylaminuria is caused by excessive malodorous trimethylamine excreted via urine and body secretion by decreased hepatic flavin-containing monooxygenase 3 (FMO3) metabolic capacity for transforming non-odorous trimethylamine N-oxide. This study investigates foodstuff first in healthy volunteers for palliative car...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.24.549
更新日期:2009-01-01 00:00:00
abstract::CYP2D6 is involved in the biotransformation of a large number of drugs, including risperidone. This study was designed to detect CYP2D6 polymorphisms with a Luminex assay, including assessment the relationship of CYP2D6 polymorphisms and risperidone plasma concentration in autism spectrum disorder children (ASD) treat...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2016.01.005
更新日期:2016-04-01 00:00:00
abstract::To investigate the transport function of the blood-brain barrier (BBB), we employed an in vitro model of the BBB, consisting of a co-culture of porcine brain capillary endothelial cells (BCECs) with rat astrocytes. Porcine BCECs were cultured on a filter insert with rat astrocytes on the underlying plastic well. Rat a...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.17.34
更新日期:2002-01-01 00:00:00
abstract::Microdose (MD) clinical trials have been introduced to obtain human pharmacokinetic data early in drug development. Here we assessed the cost-effectiveness of microdose integrated drug development in a hypothetical model, as there was no such quantitative research that weighed the additional effectiveness against the ...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.dmpk-12-rg-044
更新日期:2013-01-01 00:00:00
abstract:UNLABELLED:Better prediction of drug disposition prior to the clinical trial is critical for the efficient development of new drugs. The purpose of this study is to develop a novel multiple assessment methodology of hepatocellular drug disposition from drug uptake to efflux including biliary and basolateral excretion, ...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.1016/j.dmpk.2015.12.001
更新日期:2016-04-01 00:00:00
abstract::The interaction between cytochrome P450s (CYP, P450) and UDP-glucuronosyltransferases (UGTs) was studied by co-immunoprecipitation. P450 isoform-selective antibody was used as a probe to co-precipitate UGTs with the P450s from solubilized rat liver microsomes. Antibodies toward CYP3A2, CYP2B2, CYP2C11/13 and CYP1A2 co...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.22.367
更新日期:2007-10-01 00:00:00
abstract::The present study was undertaken to characterize the transport of (3-methyl-His(2)) thyrotropin-releasing hormone ([(3)H]MeTRH) across the blood-brain barrier in mice and the effects of thyrotropin-releasing hormone (TRH) and its analogues (taltirelin and montirelin) on the transport and brain distribution. Integratio...
journal_title:Drug metabolism and pharmacokinetics
pub_type: 杂志文章
doi:10.2133/dmpk.18.310
更新日期:2003-01-01 00:00:00