Diagnosis and treatment of a boy with IPEX syndrome presenting with diabetes in early infancy
Clin Case Rep. 2019 Sep 27;7(11):2123-2127. doi: 10.1002/ccr3.2438. eCollection 2019 Nov. ABSTRACT IPEX syndrome (Immune dysregulation, Polyendocrinopathy, X-linked) should be tested for in males under 6 months old presenting with diabetes, even without other IPEX features. Early diagnosis and bone marrow transplantation can improve outcomes. PMID:31788263 | PMC:PMC6878034 | DOI:10.1002/ccr3.2438
De novo and inherited variants in ZNF292 underlie a neurodevelopmental disorder with features of autism spectrum disorder
Genet Med. 2020 Mar;22(3):538-546. doi: 10.1038/s41436-019-0693-9. Epub 2019 Nov 14. ABSTRACT PURPOSE: Intellectual disability (ID) and autism spectrum disorder (ASD) are genetically heterogeneous neurodevelopmental disorders. We sought to delineate the clinical, molecular, and neuroimaging spectrum of a novel neurodevelopmental disorder caused by variants in the zinc finger protein 292 gene (ZNF292). METHODS: We ascertained a […]
Validation of a host response test to distinguish bacterial and viral respiratory infection
EBioMedicine. 2019 Oct;48:453-461. doi: 10.1016/j.ebiom.2019.09.040. Epub 2019 Oct 17. ABSTRACT BACKGROUND: Distinguishing bacterial and viral respiratory infections is challenging. Novel diagnostics based on differential host gene expression patterns are promising but have not been translated to a clinical platform nor extensively tested. Here, we validate a microarray-derived host response signature and explore performance in microbiology-negative […]
Biallelic loss of GNAS in a patient with pediatric medulloblastoma
Cold Spring Harb Mol Case Stud. 2019 Oct 23;5(5):a004572. doi: 10.1101/mcs.a004572. Print 2019 Oct. ABSTRACT Genome sequencing was performed on matched normal and tumor tissue from a 6.5-yr-old boy with a diagnosis of recurrent medulloblastoma. A pathogenic heterozygous c.432+1G>A canonical splice donor site variant in GNAS was detected on analysis of blood DNA. Analysis of […]
Dystonia-Ataxia with early handwriting deterioration in COQ8A mutation carriers: A case series and literature review
Parkinsonism Relat Disord. 2019 Nov;68:8-16. doi: 10.1016/j.parkreldis.2019.09.015. Epub 2019 Sep 28. ABSTRACT Cerebellar ataxia is a hallmark of coenzyme Q10 (CoQ10) deficiency associated with COQ8A mutations. We present four patients, one with novel COQ8A pathogenic variants all with early, prominent handwriting impairment, dystonia and only mild ataxia. To better define the phenotypic spectrum and course […]
Recurrent homozygous damaging mutation in TMX2, encoding a protein disulfide isomerase, in four families with microlissencephaly
J Med Genet. 2020 Apr;57(4):274-282. doi: 10.1136/jmedgenet-2019-106409. Epub 2019 Oct 5. ABSTRACT BACKGROUND: Protein disulfide isomerase (PDI) proteins are part of the thioredoxin protein superfamily. PDIs are involved in the formation and rearrangement of disulfide bonds between cysteine residues during protein folding in the endoplasmic reticulum and are implicated in stress response pathways. METHODS: Eight […]
Bi-allelic Loss of Human APC2, Encoding Adenomatous Polyposis Coli Protein 2, Leads to Lissencephaly, Subcortical Heterotopia, and Global Developmental Delay
Am J Hum Genet. 2019 Oct 3;105(4):844-853. doi: 10.1016/j.ajhg.2019.08.013. ABSTRACT Lissencephaly is a severe brain malformation in which failure of neuronal migration results in agyria or pachygyria and in which the brain surface appears unusually smooth. It is often associated with microcephaly, profound intellectual disability, epilepsy, and impaired motor abilities. Twenty-two genes are associated with […]
A Randomized, Controlled Trial of the Analytic and Diagnostic Performance of Singleton and Trio, Rapid Genome and Exome Sequencing in Ill Infants
Am J Hum Genet. 2019 Oct 3;105(4):719-733. doi: 10.1016/j.ajhg.2019.08.009. Epub 2019 Sep 26. ABSTRACT The second Newborn Sequencing in Genomic Medicine and Public Health study was a randomized, controlled trial of the effectiveness of rapid whole-genome or -exome sequencing (rWGS or rWES, respectively) in seriously ill infants with diseases of unknown etiology. Here we report […]
The mitochondrial carrier Citrin plays a role in regulating cellular energy during carcinogenesis
Oncogene. 2020 Jan;39(1):164-175. doi: 10.1038/s41388-019-0976-2. Epub 2019 Aug 28. ABSTRACT Citrin, encoded by SLC25A13 gene, is an inner mitochondrial transporter that is part of the malate-aspartate shuttle, which regulates the NAD+/NADH ratio between the cytosol and mitochondria. Citrullinemia type II (CTLN-II) is an inherited disorder caused by germline mutations in SLC25A13, manifesting clinically in growth […]
Bi-allelic GOT2 Mutations Cause a Treatable Malate-Aspartate Shuttle-Related Encephalopathy
Am J Hum Genet. 2019 Sep 5;105(3):534-548. doi: 10.1016/j.ajhg.2019.07.015. Epub 2019 Aug 15. ABSTRACT Early-infantile encephalopathies with epilepsy are devastating conditions mandating an accurate diagnosis to guide proper management. Whole-exome sequencing was used to investigate the disease etiology in four children from independent families with intellectual disability and epilepsy, revealing bi-allelic GOT2 mutations. In-depth metabolic […]