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Abbassi N, Bourrahouat A, Bedoya EC, Pagan C, Qabli ME, Maidoumi S, Belmalih A, Guillaud O, Kissani N, Abkari A, Chahid I, Rafai MA, Mouane N, Kriouile Y, Aidi S, Hida M, Idrissi ML, Belahsen MF, Abkari ME, Rkain M, Ismaili Z, Sedki A, Bost M, Aboussair N, Lachaux A. Phenotype and molecular characterization of Wilson's disease in Morocco. Clin Res Hepatol Gastroenterol 2024; 48:102335. [PMID: 38588792 DOI: 10.1016/j.clinre.2024.102335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 01/29/2024] [Accepted: 03/29/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND AND STUDY AIMS In Morocco the prevalence of Wilson disease (WD) and the spectrum of mutations are not known. The aim of the present study was to estimate the prevalence of WD in Morocco, to evaluate the phenotype among a large cohort of WD patients, and to characterize ATP7B variants in a subgroup of WD patients. PATIENTS AND METHODS We collected data from 226 patients admitted to five university hospital centers in Morocco between 2008 and 2020. The diagnosis was based on clinical manifestations, function tests and biochemical parameters. The genotype was characterized in 18 families diagnosed at the University Hospital Center of Marrakesh, by next generation sequencing. RESULTS The mean annual prevalence in Morocco was 3.88 per 100,000 and the allele frequency was 0.15 %. Among the 226 patients included (121 males and 105 females), 196 were referred for a hepatic or neurological involvement and 30 were asymptomatic. The mean age at diagnosis was 13 ± 5.1 years (range: 5 - 42 years). Consanguinity was found in 63.3 % of patients. The mean duration of illness was 2.8 ± 1.9 years. Kayser-Fleischer rings were found in 131 (67.9 %) of 193 patients. Among the 196 symptomatic patients, 141/159 (88.7 %) had low serum ceruloplasmin (<0.2 g/L) and a high 24-hours urinary copper (>100 μg/day) was found in 173/182 (95.1 %) patients. The initial treatment was D-penicillamine in 207 patients, zinc acetate in five, zinc sulfate in five, and nine patients were not treated; 60/207 (29 %) patients have stopped treatment. A total of 72 patients died; the mortality rate was 31.9 %. Eight different ATP7B variants were identified among the 18 patients studied, of which two were novel (p.Cys1104Arg and p.Gln1277Hisfs*52), and six previously published (p.Gln289Ter, p.Cys305Ter, p.Thr1232Pro, p.Lys1020Arg, p.Glu583ArgfsTer25 and c.51+4A>T). All informative patients were homozygous for the disease-causing mutation. CONCLUSION In Morocco, a high prevalence due to consanguinity and a high mortality rate due to the difficulty of diagnosis and lack of treatment were observed in WD patients. NGS sequencing identified new ATP7B variants in WD patients from Morocco.
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Affiliation(s)
- Nadia Abbassi
- Université Cadi Ayyad, Faculté des Sciences Semlalia, LHEAC, 40000, Marrakech, Morocco; Université Claude Bernard Lyon 1, INSERM-U1060, INRA, INSA, Laboratoire CarMeN, 69500, Lyon, France.
| | - Aicha Bourrahouat
- Université Cadi Ayyad, Faculté de Médecine et de pharmacie, Laboratoire de recherche de l'enfance, la santé et le développement, 40000, Marrakech, Morocco; CHU Mohammed VI de Marrakech, Hôpital Mère-Enfant, Service de Pédiatrie, 40080, Marrakech, Morocco
| | - Eduardo Couchonnal Bedoya
- HCL, Centre de référence de la maladie de Wilson, 69500, Lyon, France; HCL, Hôpital Mère-Femme-Enfant, Unité de Gastroentrologie, Hépatologie et Nutrition, 69500, Lyon, France
| | - Cécile Pagan
- HCL, Centre de Biochimie et Biologie Moléculaire, LBMMS, 69500, Lyon, France
| | - Meriem El Qabli
- Université Cadi Ayyad, Faculté de Médecine et de pharmacie, Laboratoire de recherche de l'enfance, la santé et le développement, 40000, Marrakech, Morocco
| | - Sana Maidoumi
- Université Cadi Ayyad, Faculté des Sciences Semlalia, LHEAC, 40000, Marrakech, Morocco
| | | | - Olivier Guillaud
- HCL, Hôpital Mère-Femme-Enfant, Unité de Gastroentrologie, Hépatologie et Nutrition, 69500, Lyon, France
| | - Najib Kissani
- CHU Mohammed VI de Marrakech, Hôpital Arrazi, Service de Neurologie, 40080, Marrakech, Morocco
| | - Abdelhak Abkari
- CHU Ibn Rochd de Casablanca, Hôpital Mère-Enfant, Service de Gastro-Pédiatrie, 20360, Casablanca, Morocco
| | - Imane Chahid
- CHU Ibn Rochd de Casablanca, Hôpital Mère-Enfant, Service de Gastro-Pédiatrie, 20360, Casablanca, Morocco
| | - Mohammed Abdoh Rafai
- CHU Ibn Rochd de Casablanca, Service de Neurologie adulte, 20360, Casablanca, Morocco
| | - Nezha Mouane
- CHU Ibn Sina de Rabat, Hôpital Mère-Enfant, Service de Gastro-Pédiatrie, 10100, Rabat, Morocco
| | - Yamna Kriouile
- CHU Ibn Sina de Rabat, Hôpital Mère-Enfant, Service de Gastro-Pédiatrie, 10100, Rabat, Morocco
| | - Saadia Aidi
- CHU Ibn Sina de Rabat, Service de Neurologie adulte, 10100 Rabat, Morocco
| | - Moustpha Hida
- CHU Hassan II de Fès, Hôpital Mère-Enfant, Service de Pédiatrie, 30050 Fès, Morocco
| | | | | | - Mohammed El Abkari
- CHU Hassan II de Fès, Service de Gastroenterologie et Hépatologie adulte, 30050 Fès, Morocco
| | - Maria Rkain
- CHU Mohammed VI d'Oujda, Hôpital Mère-Enfant, Service de Pédiatrie, 60049 Oujda, Morocco
| | - Zahi Ismaili
- CHU Mohammed VI d'Oujda, Service de Gastroenterologie et Hépatologie adulte, 60049, Oujda, Morocco
| | - Azeddine Sedki
- Université Cadi Ayyad, Faculté des Sciences Semlalia, LHEAC, 40000, Marrakech, Morocco
| | - Muriel Bost
- HCL, Centre de référence de la maladie de Wilson, 69500, Lyon, France; HCL, Centre de Biochimie et Biologie Moléculaire, LBMMS, 69500, Lyon, France
| | - Nisrine Aboussair
- Université Cadi Ayyad, Faculté de Médecine et de pharmacie, Laboratoire de recherche de l'enfance, la santé et le développement, 40000, Marrakech, Morocco; CHU Mohammed VI de Marrakech, Centre de recherche clinique, Service de Génétique, 40080, Marrakech, Morocco
| | - Alain Lachaux
- HCL, Centre de référence de la maladie de Wilson, 69500, Lyon, France; HCL, Hôpital Mère-Femme-Enfant, Unité de Gastroentrologie, Hépatologie et Nutrition, 69500, Lyon, France; Université Claude Bernard Lyon 1, CIRI-INSERM-U1111, CNRS UMR5308, 69100, Lyon, France
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Zhou J, Zhang Q, Zhao Y, Chen M, Zhou S, Cheng Y. Early Diagnosis of Wilson’s Disease in Children in Southern China by Using Common Parameters. Front Genet 2022; 13:788658. [PMID: 35222532 PMCID: PMC8867696 DOI: 10.3389/fgene.2022.788658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 01/14/2022] [Indexed: 11/13/2022] Open
Abstract
Objective: The aim of the study was to develop the early diagnostic criteria for Wilson’s disease (WD) in young children in southern China by using alanine aminotransferase (ALT) elevation as the first manifestation.Methods: A cross-sectional retrospective analysis of the clinical data and genetic test results of children with WD in southern China in the past 4 years and the follow-up of their short-term prognosis were performed in this study.Results: A total of 30 children (5.08 ± 2.06 years old) with elevated ALT as the first manifestation of WD in southern China were enrolled in this study, including 14 females and 16 males. Specifically, in all of the 30 cases (100%), the serum ceruloplasmin (CP) level was decreased, whereas the 24-h urinary copper level was increased. The genetic mutation test of the ATP7B gene was used to confirm the diagnosis. In particular, the two mutation sites, including p.R778L and p.I1148T, had the highest mutation frequencies, approximately 23.0 and 10.7%, respectively. Through follow-up, most of the children had good recovery.Conclusion: Early diagnosis and treatment of WD would substantially increase the survival rate and have a better prognosis. In addition, in 5-year-old children from southern China, early diagnosis could be performed quickly by referring to the following three parameters: elevated ALT, decreased ceruloplasmin level, and increased 24-h urinary copper level. It lays a foundation for further studies with a larger sample size.
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Affiliation(s)
- Jianli Zhou
- Department of Gastroenterology, Shenzhen Children’s Hospital, Shenzhen, China
| | - Qiao Zhang
- Department of Gastroenterology, Shenzhen Children’s Hospital, Shenzhen, China
| | - Yuzhen Zhao
- Department of Gastroenterology, Shenzhen Children’s Hospital, Shenzhen, China
| | - Moxian Chen
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Shaoming Zhou
- Department of Gastroenterology, Shenzhen Children’s Hospital, Shenzhen, China
- *Correspondence: Shaoming Zhou, ; Yongwei Cheng,
| | - Yongwei Cheng
- Department of Gastroenterology, Shenzhen Children’s Hospital, Shenzhen, China
- *Correspondence: Shaoming Zhou, ; Yongwei Cheng,
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Li X, Zhang W, Zhou D, Lv T, Xu A, Wang H, Zhao X, Zhang B, Li Y, Jia S, Wang Y, Wang X, Wu Z, Duan W, Wang Q, Nan Y, Shang J, Jiang W, Chen Y, Zheng S, Liu M, Sun L, You H, Jia J, Ou X, Huang J. Complex ATP7B mutation patterns in Wilson disease and evaluation of a yeast model for functional analysis of variants. Hum Mutat 2019; 40:552-565. [PMID: 30702195 DOI: 10.1002/humu.23714] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 12/16/2022]
Abstract
Wilson disease (WD) is a rare autosomal recessive genetic disorder that is associated with various mutations in the ATP7B gene. Although ATP7B variants are frequently identified, the exact mutation patterns remain unknown because of the absence of pedigree studies, and the functional consequences of individual ATP7B variants remain to be clarified. In this study, we recruited 65 clinically diagnosed WD patients from 60 unrelated families. Pedigree analysis showed that besides several ATP7B homozygous variants (8/65, 12.3%), compound heterozygous variants (43/65, 66.2%) were present in the majority of WD patients. There were 20% of the patients had one (12/65, 18.5%) or multiple (1/65, 1.5%) variants in only a single allele, characterized by a high ratio of splicing or frameshift variants. Nine ATP7B variants were cloned into the pAG426GPD yeast expression vector to evaluate their functional consequences, and the results suggested different degrees of functional disruption from mild or uncertain to severe, consistent with the corresponding phenotypes. Our study revealed the complex ATP7B mutation patterns in WD patients and the applicability of a yeast model system to the evaluation of the functional consequences of ATP7B variants, which is essential for WD cases that are difficult to interpret.
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Affiliation(s)
- Xiaojin Li
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Wei Zhang
- Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Donghu Zhou
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Tingxia Lv
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Anjian Xu
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Hejing Wang
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Xinyan Zhao
- Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Bei Zhang
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Yanmeng Li
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Siyu Jia
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Yu Wang
- Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Xiaoming Wang
- Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Zhen Wu
- Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Weijia Duan
- Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Qianyi Wang
- Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Yuemin Nan
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jia Shang
- Department of Infectious Diseases, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Wei Jiang
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yongpeng Chen
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Sujun Zheng
- Artificial Liver Center, Beijing You-An Hospital, Capital Medical University, Beijing, China
| | - Mei Liu
- Artificial Liver Center, Beijing You-An Hospital, Capital Medical University, Beijing, China
| | - Liying Sun
- Liver Transplant Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Hong You
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Jidong Jia
- Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Xiaojuan Ou
- Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Jian Huang
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Research Center for Rare Liver Diseases, Capital Medical University, Beijing, China.,Liver Research Center, National Clinical Research Center for Digestive Diseases, Beijing, China
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