ArticleMolecular genetics & genomic medicine2021
Novel compound heterozygous variants of TBXAS1 presenting with Ghosal hematodiaphyseal dysplasia treated with steroids.
Article in Molecular genetics & genomic medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 12 citations in OpenAlex.
- Ghosal Hematodiaphyseal Dysplasia Presenting as Transfusion-Dependent Anemia in Early Childhood: A Case of Homozygous TBXAS1 (c.1235G > A; p.Arg412Gln) Variant.Indian pediatrics · 2026Article
- Characterization of Novel Variants inBiomolecules · 2025Article
- Middle-aged women with hematodiaphyseal dysplasia: Ghosal syndrome: Case report.Radiology case reports · 2024Article
- Low-dose non-steroidal anti-inflammatory drugs: a promising approach for the treatment of symptomatic bone marrow failure in Ghosal hematodiaphyseal dysplasia.Haematologica · 2024Article
- Article
- Novel compound heterozygous variants of TBXAS1 presenting with Ghosal hematodiaphyseal dysplasia treated with steroids.Molecular genetics & genomic medicine · 2021Article
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5 authors at 1 institution in 1 country.
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Abstract
backgroundHomozygous or compound heterozygous pathogenic variants in the thromboxane A synthase 1 (TBXAS1) gene are associated with Ghosal hematodiaphyseal dysplasia (GHDD) which is characterized by defective hematopoiesis and increased bone density of long bones.
methodsPatients 1 and 2 are identical twins, who presented with red blood cell transfusion-dependent normocytic anemia and thrombocytopenia with bone marrow fibrosis and cortical bone thickening of long bones on plain radiograph. To clarify the etiology of their anemia and thrombocytopenia, whole blood was used for the DNA extraction and analyzed using next-generation sequencing (NGS) on an in-house bone marrow failure syndrome panel.
resultsThe NGS results indicated that these two patients carried two heterozygous variants in TBXAS1, exon7, c.583_584del, p.Ala195Leufs*12, and exon12, c.1420G>T, p.Gly474Trp, which were inherited from their mother and father, respectively. Patients 1 and 2 have been on chronic oral steroids with normalization of hemoglobin and platelet count after steroid initiation. Patient 3 is their sister who has normal blood counts but also has the same variants in TBXAS1 as her brothers. Radiographs showed cortical bone thickening and she has not required any treatment or transfusion.
conclusionWe report three Caucasian siblings from non-consanguineous parents with novel compound heterozygous variants of TBXAS1 presenting with the phenotypes of GHDD. These three cases illustrate the variable clinical expressivity of the GHDD from two-compound heterozygous pathogenic variants of TBXAS1.
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