2018
DOI: 10.1016/j.jchromb.2017.12.008
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Development of an LC–MS method to quantify coproporphyrin I and III as endogenous biomarkers for drug transporter-mediated drug-drug interactions

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Cited by 15 publications
(20 citation statements)
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“…In this large‐scale study in the Japanese general population, the mean plasma CP‐I concentration was 0.48 ng/mL. This value was slightly lower compared with previous studies in the white population (mean concentration: 0.60–0.71 ng/mL) 49 . The difference might be due to genetic differences, such as OATP1B1 polymorphism, but the detail mechanism is unknown.…”
Section: Discussioncontrasting
confidence: 72%
See 1 more Smart Citation
“…In this large‐scale study in the Japanese general population, the mean plasma CP‐I concentration was 0.48 ng/mL. This value was slightly lower compared with previous studies in the white population (mean concentration: 0.60–0.71 ng/mL) 49 . The difference might be due to genetic differences, such as OATP1B1 polymorphism, but the detail mechanism is unknown.…”
Section: Discussioncontrasting
confidence: 72%
“…This value was slightly lower compared with previous studies in the white population (mean concentration: 0.60-0.71 ng/mL). 49 The difference might be due to genetic differences, such as OATP1B1 polymorphism, but the detail mechanism is unknown. Further studies are needed to reveal the racial differences of plasma CP-I concentrations.…”
Section: Discussionmentioning
confidence: 99%
“…Rapidly advancing drug transporter [30] and CYP [31] biomarker sciences suggest that selected endogenous compounds, detectable in human plasma and urine, may serve as biomarkers for specific transporters and CYPs. Among them, coproporphyrin isomers [32,33], coproporphyrin-I (CP-I) and coproporphyrin-III (CP-III), bile acids [34], and N1-methylnicotinamide (NMN) [35] have been evaluated as possible candidate biomarkers for organic anion-transporting polypeptides (OATP1B1 and OATP1B3), organic cation transporters (OCT1 and OCT2), and MATEs, respectively. In a similar fashion, 4-beta-hydroxycholesterol (4beta-HC) and 25hydroxycholesterol (25-HC) have been evaluated as possible endogenous biomarkers for CYP3A4 [31].…”
Section: Small Molecule Biomarkers By Lcms Hrms For Small Molecule Biomarkersmentioning
confidence: 99%
“…The preferred approach for early stage exploratory biomarker work is to use multiplexed HRMS assays for profiling multiple endogenous biomarkers [45]. The development of a highly selective and sensitive UHPLC-HRMS assay affords options for earlier characterization and clinical safety projections for OATP1B1/3 [45][46][47][48][49], selected bile acids [50] and NMN-mediated DDIs [51] along with pharmacokinetic analyses of drugs as part of FIH clinical studies. In MS-based methods, it is preferred to use SIL-IS for each endogenous biomarker; however, structural analogues can be used as an alternative as long as they are properly validated.…”
Section: Endogenous Small Molecule Biomarkers For Renal and Hepatic Transportersmentioning
confidence: 99%