PMID- 37762919 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231003 IS - 2077-0383 (Print) IS - 2077-0383 (Electronic) IS - 2077-0383 (Linking) VI - 12 IP - 18 DP - 2023 Sep 15 TI - Clinicopathologic Features, Genetics, Treatment, and Long-Term Outcomes in Japanese Children and Young Adults with Benign Recurrent Intrahepatic Cholestasis: A Multicenter Study. LID - 10.3390/jcm12185979 [doi] LID - 5979 AB - BACKGROUND: Few reports of benign recurrent intrahepatic cholestasis (BRIC) have focused on East Asian patients. We describe the clinicopathologic features, genetics, treatment, and outcomes in Japanese BRIC patients. METHODS: We recruited patients with BRIC type 1 (BRIC-1) or 2 (BRIC-2) treated at four pediatric centers and one adult center between April 2007 and March 2022. Demographics, clinical course, laboratory results, molecular genetic findings concerning ATP8B1 and ABCB11 genes, histopathology, and treatment response were examined retrospectively. RESULTS: Seven Japanese patients with BRIC were enrolled (four male, three female; four BRIC-1 and three BRIC-2). The median age at onset for BRIC-1 was 12 years; for BRIC-2, it was 1 month. Intermittent cholestatic attacks numbered from one to eight during the 11 years of median follow-up. Six patients received a mainstream education; only one patient attended special education. None developed cirrhosis. Three with BRIC-1 showed compound heterozygosity for a variant ATP8B1 gene, while one was heterozygous; two BRIC-2 patients showed compound heterozygosity in ABCB11 and one was heterozygous. Liver biopsy specimens obtained during cholestatic attacks showed fibrosis varying from none to moderate; inflammation was absent or mild. Rifampicin administered to three patients for cholestatic attacks was effective in all, as was cholestyramine in two of three. CONCLUSIONS: To our knowledge, this is the first East Asian multicenter study of BRIC patients. Onset age and number of cholestatic attacks varied. Rifampicin and cholestyramine were effective against attacks. No patient developed cirrhosis; most had normal growth and development. The long-term outcomes were satisfactory. FAU - Kato, Ken AU - Kato K AD - Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan. FAU - Umetsu, Shuichiro AU - Umetsu S AD - Department of Pediatric Hepatology and Gastroenterology, Saiseikai Yokohamashi Tobu Hospital, Yokohama 230-0012, Japan. FAU - Togawa, Takao AU - Togawa T AD - Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan. FAU - Ito, Koichi AU - Ito K AD - Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan. FAU - Kawabata, Takayoshi AU - Kawabata T AD - Department of Pediatrics, Ishikawa Prefectural Central Hospital, Kanazawa 920-8530, Japan. FAU - Arinaga-Hino, Teruko AU - Arinaga-Hino T AD - Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume 830-0011, Japan. FAU - Tsumura, Naoya AU - Tsumura N AD - Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan. FAU - Yasuda, Ryosuke AU - Yasuda R AD - Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan. FAU - Mihara, Yutaro AU - Mihara Y AUID- ORCID: 0000-0002-4119-1486 AD - Department of Pathology, Kurume University School of Medicine, Kurume 830-0011, Japan. FAU - Kusano, Hironori AU - Kusano H AUID- ORCID: 0000-0002-9911-2007 AD - Department of Pathology, Kurume University School of Medicine, Kurume 830-0011, Japan. FAU - Ito, Shogo AU - Ito S AD - Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan. FAU - Imagawa, Kazuo AU - Imagawa K AD - Department of Child Health, Institute of Medicine, University of Tsukuba, Tsukuba 305-8546, Japan. FAU - Hayashi, Hisamitsu AU - Hayashi H AUID- ORCID: 0000-0002-5247-895X AD - Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Science, The University of Tokyo, Tokyo 113-0033, Japan. FAU - Inui, Ayano AU - Inui A AD - Department of Pediatric Hepatology and Gastroenterology, Saiseikai Yokohamashi Tobu Hospital, Yokohama 230-0012, Japan. FAU - Yamashita, Yushiro AU - Yamashita Y AD - Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan. FAU - Mizuochi, Tatsuki AU - Mizuochi T AUID- ORCID: 0000-0002-2943-7068 AD - Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan. LA - eng PT - Journal Article DEP - 20230915 PL - Switzerland TA - J Clin Med JT - Journal of clinical medicine JID - 101606588 PMC - PMC10532077 OTO - NOTNLM OT - ABCB11 OT - ATP8B1 OT - children OT - cholestasis OT - cholestyramine OT - rifampicin COIS- The authors declare no conflict of interest. EDAT- 2023/09/28 06:42 MHDA- 2023/09/28 06:43 PMCR- 2023/09/15 CRDT- 2023/09/28 01:23 PHST- 2023/07/30 00:00 [received] PHST- 2023/09/13 00:00 [revised] PHST- 2023/09/13 00:00 [accepted] PHST- 2023/09/28 06:43 [medline] PHST- 2023/09/28 06:42 [pubmed] PHST- 2023/09/28 01:23 [entrez] PHST- 2023/09/15 00:00 [pmc-release] AID - jcm12185979 [pii] AID - jcm-12-05979 [pii] AID - 10.3390/jcm12185979 [doi] PST - epublish SO - J Clin Med. 2023 Sep 15;12(18):5979. doi: 10.3390/jcm12185979.