{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,12]],"date-time":"2026-02-12T17:46:17Z","timestamp":1770918377736,"version":"3.50.1"},"reference-count":63,"publisher":"S. Karger AG","issue":"1","license":[{"start":{"date-parts":[[2025,3,24]],"date-time":"2025-03-24T00:00:00Z","timestamp":1742774400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2025,3,24]],"date-time":"2025-03-24T00:00:00Z","timestamp":1742774400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Mol Syndromol"],"abstract":"<jats:p>Introduction: Epidermolysis bullosa (EB) comprises a diverse group of rare, incurable genetic disorders characterized by blistering of the skin. These conditions have variable clinical presentations and poorly understood genotypes and phenotypes. This study aimed to confirm the diagnosis of dystrophic epidermolysis bullosa (DEB) in a family and analyze gene-phenotype correlations. Methods: The study involved 3 patients, two controls, and one member with an unknown phenotype. We performed whole exome sequencing (WES) on family members to identify EB-associated genes, with Sanger sequencing for validation. Results: (1) WES revealed missense variants in the COL7A1 ([c.4274T&gt;C.L1425P] and [c.3602G&gt;A.R1201H]) genes in the family; although recorded in the dbSNP database, they have not been reported in previous articles and classified as of uncertain significance by InterVar. These findings were confirmed by Sanger sequencing. (2) Statistical analysis indicated a significant association between DEB and epidermolysis bullosa simplex with junctional epidermolysis bullosa (p = 0.031) in dominant and recessive inheritance patterns, respectively. However, no significant correlation was found between the clinical phenotype of DEB and variant types (nonsense and missense), inheritance patterns (dominant and recessive), or between familial and sporadic cases. Conclusion: This study identified variants in the COL7A1 gene within Chinese families, expanding the variant spectrum of DEB. These findings lay the groundwork for improved genetic diagnosis and counseling.<\/jats:p>","DOI":"10.1159\/000545348","type":"journal-article","created":{"date-parts":[[2025,3,24]],"date-time":"2025-03-24T13:17:02Z","timestamp":1742822222000},"page":"1-14","source":"Crossref","is-referenced-by-count":0,"title":["Dominant Dystrophic Epidermolysis Bullosa with COL7A1 Variant Confirmed by Whole-Exome Sequencing in a Chinese Family and Genotype-Phenotype Correlation 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