• Xu Han, Juan Wang, Hao Gu, Xing Liao, and Miao Jiang.
• Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China.
• Medicine (Baltimore). 2022 Jan 28; 101 (4): e28529e28529.

BackgroundPrevious studies have indicated that the changes of bile acids are associated with liver cirrhosis. The objective of our study is to perform a systematic review to explore the relationship between bile acids and the pathologic process of cirrhosis, and to find minimally invasive, accurate and reliable potential biomarkers for predicting cirrhosis.MethodsEMBASE, the Cochrane Library, PubMed, Web of Science, WanFang Data and Chinese National Knowledge Infrastructure (CNKI) will be searched, using the search strategy of liver cirrhosis, bile acids and metabolomic. The screening process will be conducted strictly based on inclusion and exclusion criteria. Clinical studies based on human including randomized controlled trial, cohort study and case control study will be included without restriction of time. Cochrane collaboration's tool for assessing risk of bias and Newcastle-Ottawa Scale (NOS) will be applied to assess the risk of bias to randomized controlled trial and observational study, respectively. The bile acids and their concentrate which are different between liver cirrhosis and control group will be the mainly outcome. A qualitative analysis will be performed to profile the trajectory change of bile acids, then the meta-analysis will be done for quantitative analysis.ResultsThe bile acids profile of liver cirrhosis that has potential predictive value for cirrhosis will be identified.ConclusionThe conclusion of this systematic review will finding potential biomarkers for predicting cirrhosis.Ethics And DisseminationThis systematic review is based on published researches, so there is no ethical approval required. We intend to disseminate our findings in a peer-reviewed journal.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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