Bile acid profiles in neonatal intrahepatic cholestasis caused by citrin deficiency

Ching Hsuan Yang, Chiung Yu Chen, Yen Yin Chou, Hung Chih Chiu, Wei Lun Tsai, Shu Chu Shiesh

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

Background Neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD) is characterized by conjugated hyperbilirubinemia and increased plasma bile acid concentrations. However, the underlying mechanisms remain unclear. We established a liquid chromatography tandem mass spectrometry (LC-MS/MS) method for simultaneously quantifying plasma bile acids and examined bile acid profiles in NICCD infants. Methods We measured 15 bile acids within 15 min and found a wide linear range for individual bile acids. Results The within-run and run-to-run CV of all bile acids was 1.2–10.9% and 3.1–10.8%, respectively, with a mean recovery of 90.5–112.6%. Compared to infants with citrullinemia without mutations in SLC25A13 (non-NICCD), NICCD infants showed increased plasma total bile acid concentrations (mean: 201 vs. 42 μM, p < 0.001), with a distinct bile acid profile characterized by increased conjugated primary bile acid concentrations. The calculated ratios, including primary/secondary bile acid (714 vs. 235, p < 0.05) and conjugated/free bile acid (371 vs. 125, p < 0.05) ratios, were higher in NICCD infants. The area under receiver operating characteristic curve for conjugated/free bile acid ratio to identify infants with NICCD was 0.871 (95% confidence interval, 0.713–1.0). Conclusions Together, our findings indicated plasma bile acid profile as a potential noninvasive diagnostic biomarker for NICCD.

原文English
頁(從 - 到)28-35
頁數8
期刊Clinica Chimica Acta
475
DOIs
出版狀態Published - 2017 12月

All Science Journal Classification (ASJC) codes

  • 生物化學
  • 臨床生物化學
  • 生物化學(醫學)

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