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Current understanding of essential trace elements in intrahepatic cholestasis of pregnancy

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Abstract

Trace elements are important components in the body and have fundamental roles in maintaining a healthy and balanced pregnancy process. Either deficiency or excess of trace elements, including selenium, iron, zinc, copper, and magnesium can lead to pregnancy complications. As a rare disorder during pregnancy of unknown aetiology, intrahepatic cholestasis of pregnancy (ICP) poses a significant risk to the fetus of perinatal mortality. ICP is a multifactorial complication of which the pathogenesis is still an enigma. Epidemiological studies have demonstrated the association of ICP with some trace elements. Evidence from retrospective studies in humans further revealed the possible contributing roles of trace elements in the pathogenesis of ICP. The published literature on the association of trace elements with ICP was reviewed. Recent advances in molecular biological techniques from animal studies have helped to elucidate the possible mechanisms by how these trace elements function in regulating oxidative reactions, inflammatory reactions and immune balance in the maternal-fetal interface, as well as the influence on hepato-intestinal circulation of bile acid. The scenario regarding the role of trace elements in the pathogenesis of ICP is still developing. The administration or depletion of these trace elements may have promising effects in alleviating the symptoms and improving the pregnancy outcomes of ICP.

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National Natural Science Foundation of China (82301924), Science and Technology Department of Sichuan Province (2023YFS0217).

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  1. Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, No. 20, South Renmin Road, Section 3, Chengdu, 610041, China

    Dan Shan, Qian Chen, Yupei Xie, Siyu Dai & Yayi Hu

  2. Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, 610041, China

    Dan Shan, Qian Chen, Yupei Xie, Siyu Dai & Yayi Hu

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DS: conceived the initial concept, designed the framework and conducted the initial search. QC and YX: conducted the second search and prepared the figures. SD: prepared the tables. YH: revised the article critically. All the authors contributed to the manuscript writing, read and approved the final manuscript.

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Shan, D., Chen, Q., Xie, Y. et al. Current understanding of essential trace elements in intrahepatic cholestasis of pregnancy. Biometals (2024). https://doi.org/10.1007/s10534-024-00586-1

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