A novel hydrophilic interaction chromatography assay characterization of 4-pyridoxic acid, an emergent renal organic anion transporter 1/3 transporter biomarker.
Bioanalysis
; 13(18): 1391-1400, 2021 Sep.
Article
em En
| MEDLINE
| ID: mdl-34551579
ABSTRACT
Aim:
4-pyridoxic acid (PDA) has been proposed as an endogenous biomarker for renal organic anion transporter 1/3 (OAT1/3) inhibition. Clinical data are needed to support the proposal. Materials &methods:
A hydrophilic interaction chromatography (HILIC)-LC/MS/MS assay was developed and characterized to support clinical drug-drug interaction (DDI) studies.Results:
A HILIC-LC/MS/MS assay was successfully developed. PDA was measured in two clinical DDI studies; one where no significant OAT1/3 inhibition was observed and a second where a known inhibitor of the transporter was dosed. In both clinical studies, PDA plasma concentrations correlate to OAT1/3 function.Conclusion:
The analysis of study samples from two clinical DDI studies using a HILIC-LC/MS/MS assay contributes further evidence that PDA is an endogenous biomarker for OAT1/3 inhibition.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ácido Piridóxico
/
Biomarcadores
/
Cromatografia Líquida
/
Espectrometria de Massas em Tandem
/
Interações Hidrofóbicas e Hidrofílicas
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article