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Objective: To further disseminate the nomenclature of chronic enteropathy associated with SLCO2A1 (CEAS), especially for physicians in China and Korea where the genetic feature of gene mutations related hypertrophic osteoarthropathy and pachydermia had been extensively studied. gene mutations related hypertrophic osteoarthropathy and pachydermia had been extensively studied.
Design: A case report with literature review of gene mutations-related disorders.
Results: A 38-year-old Korean presented to a tertiary hospital with dizziness, abdominal pain and melena. He had a positive faecal occult blood test on initial workup. Oesophagogastroduodenal endoscopy (OGD), colonoscopy and CT scan were unremarkable and showed no obvious cause for his melena. Capsule endoscope and roentgen barium studies were performed, revealing an erythematous mucosa with ulcers in the jejunum and stenosis to the jejunal-ileal junction. Next-generation sequencing was then performed and discovered point mutations of gene's seven exon (940+1 G>A) and 13 exon (1807 C>T) allele. This Korean patient with CEAS is the first documented case noted outside of the Japanese population.
Conclusion: CEAS is not uniquely found in Japanese individuals. There are lots of similarities between CEAS and primary hypertrophic osteoarthropathy, the two entity may just be the two sides of one same coin. International and multidisciplined efforts are required to further study this complicated disorder.
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http://dx.doi.org/10.1136/bmjgast-2018-000223 | DOI Listing |
Ned Tijdschr Geneeskd
August 2025
Maastricht UMC+, afd. Dermatologie, Maastricht.
A 33-year old woman presented with a slowly progressive but asymptomatic nail disorder of the left index finger. MRI and histological examination revealed a subungual neurofibroma as the cause of this single digit clubbing. Surgical removal resulted in good recovery with preservation of the nail.
View Article and Find Full Text PDFNat Commun
August 2025
Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China.
SLCO2A1 is a member of the organic anion transporting polypeptide (OATP) family, which preferentially transports prostaglandins (PGs) into cells and plays a vital role in regulating PGs inactivation and distribution. Dysregulation or genetic mutation of SLCO2A1 is associated with primary hypertrophic osteoarthropathy (PHO) and chronic enteropathy associated with the SLCO2A1 gene (CEAS). Although the biophysical and biochemical properties of SLCO2A1 have been characterized, the precise mechanism by which SLCO2A1 recognizes and transports PGs remains unclear.
View Article and Find Full Text PDFCalcif Tissue Int
August 2025
Department of Endocrinology, NHE, PGIMER, Room: 12, Chandigarh, India.
Pachydermoperiostosis (PDP) is a rare genetic disorder manifesting with periostosis, clubbing, and thickened skin. The impact of PDP on bone density and microarchitecture is underexplored despite the potential derangement in bone health due to systemic inflammation. This cross-sectional case-control study was conducted in a tertiary care center in north India from July 2022 to July 2023.
View Article and Find Full Text PDFGenes (Basel)
July 2025
Choremion Laboratory, Research Institute of Maternal and Child Health and Precision Medicine, "Aghia Sophia" Children's Hospital, 115 27 Athens, Greece.
Background: Osteodysplastic syndromes comprise a very diverse group of clinically and genetically heterogeneous disorders characterized by defects in bone and connective tissue development, as well as in bone density. Here, we report the case of a 48-year-old female with a complex medical history characterized by bone dysplasia, hyperostosis, and partial tooth agenesis.
Methods: Genetic testing was performed using WES analysis and Sanger sequencing.
Cureus
July 2025
Department of Pediatric Genetics, University of Missouri School of Medicine, Columbia, USA.
Primary autosomal recessive hypertrophic osteoarthropathy (PHOAR) type 1 is caused by the failure of the gene product to break down prostaglandins. We report the case of a two-year-old male patient diagnosed with PHOAR1 due to a previously unreported homozygous intragenic deletion. Upon retrospective review of the patient's history, his clinical course proved to be typical of this syndrome, although it had been unrecognized.
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