Dec 6, 2017

Whole-Exome Sequencing in Adults With Chronic Kidney Disease: A Pilot Study

Annals of Internal Medicine
Sneh LataAli G Gharavi

Abstract

The utility of whole-exome sequencing (WES) for the diagnosis and management of adult-onset constitutional disorders has not been adequately studied. Genetic diagnostics may be advantageous in adults with chronic kidney disease (CKD), in whom the cause of kidney failure often remains unknown. To study the diagnostic utility of WES in a selected referral population of adults with CKD. Observational cohort. A major academic medical center. 92 adults with CKD of unknown cause or familial nephropathy or hypertension. The diagnostic yield of WES and its potential effect on clinical management. Whole-exome sequencing provided a diagnosis in 22 of 92 patients (24%), including 9 probands with CKD of unknown cause and encompassing 13 distinct genetic disorders. Among these, loss-of-function mutations were identified in PARN in 2 probands with tubulointerstitial fibrosis. PARN mutations have been implicated in a short telomere syndrome characterized by lung, bone marrow, and liver fibrosis; these findings extend the phenotype of PARN mutations to renal fibrosis. In addition, review of the American College of Medical Genetics actionable genes identified a pathogenic BRCA2 mutation in a proband who was diagnosed with breast cancer on follo...Continue Reading

  • References49
  • Citations18

References

  • References49
  • Citations18

Citations

Mentioned in this Paper

Study
Clinical Management
Genetic Disorders Screening
Academic Medical Centers
Association of American Medical Colleges
Follow-up
Kidney Failure
Lung
Genes
Telomere Recombination

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