Cited by 81Genomics and Rare DiseasesLiver Disease Diagnosis and TreatmentMetabolism and Genetic Disorders

Clinical utility of genomic analysis in adults with idiopathic liver disease

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Hakim, Aaron, Zhang, Xuchen, DeLisle, Angela, Oral, Elif A., Dykas, Daniel, Drzewiecki, Kaela, Assis, David N., Silveira, Marina +5 more·2019·Journal of Hepatology

Abstract

Background & aims Adult patients suffering from liver disease of unknown cause represent an understudied and underserved population. The use of whole-exome sequencing (WES) for the assessment of a broader spectrum of non-oncological diseases, among adults, remains poorly studied. We assessed the utility of WES in the diagnosis and management of adults with unexplained liver disease despite comprehensive evaluation by a hepatologist and with no history of alcohol overuse.Methods We performed WES and deep phenotyping of 19 unrelated adult patients with idiopathic liver disease recruited at a tertiary academic health care center in the US.Results Analysis of the exome in 19 cases identified 4 monogenic disorders in 5 unrelated adults. Patient 1 suffered for 18 years from devastating complications of undiagnosed type 3 familial partial lipodystrophy due to a deleterious heterozygous variant in PPARG. Molecular diagnosis enabled initiation of leptin replacement therapy with subsequent normalization of liver aminotransferases, amelioration of dyslipidemia, and decreases in daily insulin requirements. Patients 2 and 3 were diagnosed with MDR3 deficiency due to recessive mutations in ABCB4. Patient 4 with a prior diagnosis of non-alcoholic steatohepatitis was found to harbor a mitochondrial disorder due to a homozygous pathogenic variant in NDUFB3; this finding enabled initiation of disease preventive measures including supplementation with antioxidants. Patient 5 is a lean patient with hepatic steatosis of unknown etiology who was found to have a damaging heterozygous variant in APOB.Conclusions Genomic analysis yielded an actionable diagnosis in a substantial number (∼25%) of selected adult patients with chronic liver disease of unknown etiology. This study supports the use of WES in the evaluation and management of adults with idiopathic liver disease in clinical practice.Lay summary We performed whole-exome sequencing in 19 adult patients with unexplained liver disease after an unrevealing conventional work-up performed by a hepatologist. In 5 cases, genomic analysis led to a diagnosis and informed treatment and management of the disease. Therefore, we suggest using whole-exome sequencing in the evaluation and management of adults with unexplained liver disease.

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Crossref · 10.1016/j.jhep.2019.01.036

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  • Initial data suggest that individuals with strong family history, early disease onset, or lack of accruing factors may benefit from a comprehensive genetic evaluation that may identify strong genetic determinants of SLD with potential implications for treatment and family counselling.

    “Initial data suggest that individuals with a) strong family history, b) early disease onset, or c) lack of accruing factors may bene fi t from a comprehensive genetic evaluation ( e.g. whole-exome sequencing or targeted panel sequencing) that may identify strong genetic determinants of SLD with potential implications for treatment and family counselling. 135,208 -211”

    From EASL-EASD-EASO Clinical Practice Guidelines on the management of metabolic dysfunction-associated steatotic liver disease (MASLD). (2024) · cites this paper as [209]

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Authors
Hakim, A., Zhang, X., DeLisle, A., Oral, E. A., Dykas, D., Drzewiecki, K., Assis, D. N., Silveira, M., Batisti, J., Jain, D., Bale, A., Mistry, P. K., & Vilarinho, S.
Affiliations
  • Yale University (US)
  • University of Michigan (US)
Venue
Journal of Hepatology
Publisher
Elsevier BV
Published
2019-06
Volume
70
Issue
6
Pages
1214-1221
ISSN
0168-8278 (ISSN-L)
OpenAlex
W2936500884
Cited by
81
References
29
Citations by year
2026: 15 · 2025: 9 · 2024: 11 · 2023: 15 · 2022: 9 · 2021: 7 · 2020: 10 · 2019: 5
FWCI
4.66
Type
journal article
Language
en
Open access
Locations
  • Journal of Hepatology (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR001863)
  • National Institute of Diabetes and Digestive and Kidney Diseases (K08DK113109, P30DK020572, P30DK034989)
  • National Center for Advancing Translational Sciences
  • Yale Liver Center
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
Keywords
exome sequencing, PPARγ, ABCB4, mitochondrial disease, nonalcoholic steatohepatitis, apolipoprotein B, hepatic steatosis, molecular diagnosis, deep phenotyping, leptin replacement therapy, antioxidants
MeSH terms
Exome Sequencing, Adult, Aged, Cholestasis, Intrahepatic, Female, Humans, Liver Diseases, Male, Middle Aged, ATP Binding Cassette Transporter, Subfamily B, Genomics, PPAR gamma, Lipodystrophy, Familial Partial

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