Exploration of Serum Biomarkers for Predicting the Response to Inchinkoto (ICKT), a Japanese Traditional Herbal Medicine

Overview

Journal Metabolomics

Publisher Springer

Specialty Endocrinology

Date 2019 Aug 4

PMID 31375927

Citations 4

Authors

Masahito Uji

Yukihiro Yokoyama

Katsuya Ohbuchi

Kazuaki Tsuchiya

Chiharu Sadakane

Chika Shimobori

Masahiro Yamamoto

Masato Nagino

Affiliations

Soon will be listed here.

Abstract

Introduction: In patients with obstructive jaundice, biliary drainage sometimes fails to result in improvement. A pharmaceutical-grade choleretic herbal medicine, Inchinkoto (ICKT), has been proposed to exert auxiliary effects on biliary drainage; however, its effects are variable among patients.

Objectives: The aim of this study is to explore serum biomarkers that are associated with pharmaceutical efficacy of ICKT.

Methods: Obstructive jaundice patients who underwent external biliary decompression were enrolled (n = 37). ICKT was given orally 3 times a day at daily dose of 7.5 g. Serum and bile samples were collected before, 3 h after, and 24 h after ICKT administration. The concentrations of total bilirubin, direct bilirubin, and total bile acid in bile specimens were measured. Metabolites in serum samples were comprehensively profiled using LC-MS/MS and GC-MS/MS. Pharmacokinetic analysis of major ICKT components was also performed.

Results: ICKT administration significantly decreased serum ALT and increased bile volume after 24 h. The serum concentrations of ICKT components were not well correlated with the efficacy of ICKT. However, the ratio of 2-hydroxyisobutyric acid to arachidonic acid and the ratio of glutaric acid to niacinamide, exhibited good performance as biomarkers for the efficacy of ICKT on bile flow and ALT, respectively. Additionally, comprehensive correlation analysis revealed that serum glucuronic acid was highly correlated with serum total bilirubin, suggesting that this metabolite may be deeply involved in the pathogenesis of jaundice.

Conclusions: The present study indicates that ICKT is efficacious and provides candidates for predicting ICKT efficacy. Further validation studies are warranted.

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