PMID- 35431768 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220419 IS - 1662-0631 (Print) IS - 1662-0631 (Electronic) IS - 1662-0631 (Linking) VI - 16 IP - 1 DP - 2022 Jan-Apr TI - Benign Recurrent Intrahepatic Cholestasis Type 1 with Novel Nonsense Mutations in the ATP8B1 Gene. PG - 110-115 LID - 10.1159/000522145 [doi] AB - Benign recurrent intrahepatic cholestasis (BRIC) is a group of genetically heterogeneous autosomal recessive liver disorders characterized by recurrent episodes of jaundice and pruritus. BRIC is divided into two groups, BRIC type 1 (BRIC1) and BRIC type 2 (BRIC2), caused by mutations in the ATP8B1 and ABCB11 genes. We show that novel nonsense mutations in ATP8B1 (c.2989G>A, c.1547T>A) are the cause of BRIC1. A 16-year-old girl presented with severe jaundice. Acute and chronic liver diseases with infectious (hepatitis virus), metabolic, and autoimmune etiologies were excluded. Imaging revealed normal intra- and extra-hepatic bile ducts. Liver biopsy revealed severe intrahepatic bile stasis with bile plugs. She had similar symptoms at the age of 0 years. The BRIC criteria were satisfied, and ATP8B1 and ABCB11 gene analyses performed. Surprisingly, novel nonsense variants of the ATP8B1 gene (c.2989G>A and c.1547T>A) in heterozygosis were found, which were identified in each of her parents. Therefore, the compound heterozygote was thought to cause BRIC1 in these patients. Genetic mutations that differ from those already known may help diagnose patients with BRIC. CI - Copyright (c) 2022 by S. Karger AG, Basel. FAU - Miura, Ryoichi AU - Miura R AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Kawaoka, Tomokazu AU - Kawaoka T AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Imamura, Michio AU - Imamura M AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Kosaka, Masanari AU - Kosaka M AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Johira, Yusuke AU - Johira Y AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Shirane, Yuki AU - Shirane Y AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Murakami, Serami AU - Murakami S AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Yano, Shigeki AU - Yano S AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Amioka, Kei AU - Amioka K AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Naruto, Kensuke AU - Naruto K AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Ando, Yuwa AU - Ando Y AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Kosaka, Yumi AU - Kosaka Y AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Kodama, Kenichiro AU - Kodama K AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Uchikawa, Shinsuke AU - Uchikawa S AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Fujino, Hatsue AU - Fujino H AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Ono, Atsushi AU - Ono A AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Nakahara, Takashi AU - Nakahara T AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Murakami, Eisuke AU - Murakami E AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Yamauchi, Masami AU - Yamauchi M AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. FAU - Hinoi, Takao AU - Hinoi T AD - Department of Clinical and Molecular Genetics, Hiroshima University Hospital, Hiroshima, Japan. FAU - Aikata, Hiroshi AU - Aikata H AD - Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University Hospital, Hiroshima, Japan. LA - eng PT - Case Reports DEP - 20220304 PL - Switzerland TA - Case Rep Gastroenterol JT - Case reports in gastroenterology JID - 101474819 PMC - PMC8958625 OTO - NOTNLM OT - ATP8B1 OT - Autosomal recessive liver disease OT - Benign recurrent intrahepatic cholestasis COIS- The authors declare no conflicts of interest or financial support in association with the study. EDAT- 2022/04/19 06:00 MHDA- 2022/04/19 06:01 PMCR- 2022/03/04 CRDT- 2022/04/18 06:32 PHST- 2021/12/06 00:00 [received] PHST- 2022/01/07 00:00 [accepted] PHST- 2022/04/18 06:32 [entrez] PHST- 2022/04/19 06:00 [pubmed] PHST- 2022/04/19 06:01 [medline] PHST- 2022/03/04 00:00 [pmc-release] AID - crg-0016-0110 [pii] AID - 10.1159/000522145 [doi] PST - epublish SO - Case Rep Gastroenterol. 2022 Mar 4;16(1):110-115. doi: 10.1159/000522145. eCollection 2022 Jan-Apr.