Kato Ken, Umetsu Shuichiro, Togawa Takao, Ito Koichi, Kawabata Takayoshi, Arinaga-Hino Teruko, Tsumura Naoya, Yasuda Ryosuke, Mihara Yutaro, Kusano Hironori, Ito Shogo, Imagawa Kazuo, Hayashi Hisamitsu, Inui Ayano, Yamashita Yushiro, Mizuochi Tatsuki
Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan.
Department of Pediatric Hepatology and Gastroenterology, Saiseikai Yokohamashi Tobu Hospital, Yokohama 230-0012, Japan.
J Clin Med. 2023 Sep 15;12(18):5979. doi: 10.3390/jcm12185979.
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 and 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 gene, while one was heterozygous; two BRIC-2 patients showed compound heterozygosity in 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.
背景:关于良性复发性肝内胆汁淤积症(BRIC)的报道很少聚焦于东亚患者。我们描述了日本BRIC患者的临床病理特征、遗传学、治疗及预后情况。 方法:我们招募了2007年4月至2022年3月期间在四个儿科中心和一个成人中心接受治疗的1型BRIC(BRIC-1)或2型BRIC(BRIC-2)患者。回顾性研究了患者的人口统计学资料、临床病程、实验室检查结果、与ATP8B1和ABCB11基因相关的分子遗传学发现、组织病理学及治疗反应。 结果:共纳入7例日本BRIC患者(4例男性,3例女性;4例BRIC-1,3例BRIC-2)。BRIC-1的中位发病年龄为12岁;BRIC-2为1个月。在中位随访的11年中,间歇性胆汁淤积发作次数为1至8次。6例患者接受主流教育;仅1例患者接受特殊教育。无一例发生肝硬化。3例BRIC-1患者的ATP8B1基因存在复合杂合变异,1例为杂合子;2例BRIC-2患者的ABCB11基因存在复合杂合变异,1例为杂合子。胆汁淤积发作期间获取的肝活检标本显示纤维化程度从无到中度不等;无炎症或炎症轻微。3例患者因胆汁淤积发作接受利福平治疗,均有效,3例中的2例使用考来烯胺也有效。 结论:据我们所知,这是东亚地区首次针对BRIC患者的多中心研究。发病年龄和胆汁淤积发作次数各不相同。利福平和考来烯胺对发作有效。无一例患者发生肝硬化;大多数患者生长发育正常。长期预后良好。
Gastroenterology. 2004-8
Case Rep Gastroenterol. 2022-3-4
Pediatr Gastroenterol Hepatol Nutr. 2019-3