1
|
Christensen RD, Agarwal AM, Yaish HM, Reading NS, O'Brien EA, Prchal JT. Three Novel Spectrin Variants in Jaundiced Neonates. Clin Pediatr (Phila) 2018; 57:19-26. [PMID: 28090778 DOI: 10.1177/0009922816687326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Various mutations in the genes encoding alpha spectrin (SPTA1) or beta spectrin (SPTB) are known to cause erythrocyte membrane disorders, sometimes associated with severe neonatal jaundice and anemia. We used a next-generation sequencing panel to evaluate 3 unrelated neonates who had puzzling cases of nonimmune hemolytic jaundice. In each case, we identified novel mutations in either SPTA1 or SPTB. Correlating erythrocyte morphology, clinical course, and computational analysis, we submit that each of the 3 variants is a probable pathogenic cause of the hereditary hemolytic conditions in these patients. We hope other pediatric practitioners caring for neonates with what appears to be idiopathic severe neonatal hyperbilirubinemia will look for spectrin variants as a possible cause, because additional cases with these specific variants along with this clinical phenotype are needed to confirm our postulate that these 3 cases are indeed pathogenic mutations.
Collapse
Affiliation(s)
- Robert D Christensen
- 1 University of Utah, Salt Lake City, UT, USA.,2 Intermountain Healthcare, Salt Lake City, UT, USA
| | - Archana M Agarwal
- 1 University of Utah, Salt Lake City, UT, USA.,3 ARUP Laboratories, Salt Lake City, UT, USA
| | | | - N Scott Reading
- 1 University of Utah, Salt Lake City, UT, USA.,3 ARUP Laboratories, Salt Lake City, UT, USA
| | - Elizabeth A O'Brien
- 1 University of Utah, Salt Lake City, UT, USA.,2 Intermountain Healthcare, Salt Lake City, UT, USA
| | - Josef T Prchal
- 1 University of Utah, Salt Lake City, UT, USA.,3 ARUP Laboratories, Salt Lake City, UT, USA.,4 Salt Lake VA Hospital, Salt Lake City, UT, USA
| |
Collapse
|
2
|
Bogardus H, Schulz VP, Maksimova Y, Miller BA, Li P, Forget BG, Gallagher PG. Severe nondominant hereditary spherocytosis due to uniparental isodisomy at the SPTA1 locus. Haematologica 2014; 99:e168-70. [PMID: 24895341 DOI: 10.3324/haematol.2014.110312] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Hannah Bogardus
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT
| | - Vincent P Schulz
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT
| | - Yelena Maksimova
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT
| | - Barbara A Miller
- Departments of Pediatrics and Biochemistry and Molecular Biology, Penn State University College of Medicine, Hershey, PA
| | - Peining Li
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
| | - Bernard G Forget
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Patrick G Gallagher
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| |
Collapse
|