LIU Zhouliang, YANG Chao, WANG Huijun, LIN Zhimiao. Clinical Features and Mutation Analysis of the SMARCAD1 Gene in a Family with Basan Syndrome and a Literature Review[J]. Journal of Rare Diseases, 2023, 2(2): 178-185. DOI: 10.12376/j.issn.2097-0501.2023.02.006
Citation: LIU Zhouliang, YANG Chao, WANG Huijun, LIN Zhimiao. Clinical Features and Mutation Analysis of the SMARCAD1 Gene in a Family with Basan Syndrome and a Literature Review[J]. Journal of Rare Diseases, 2023, 2(2): 178-185. DOI: 10.12376/j.issn.2097-0501.2023.02.006
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Clinical Features and Mutation Analysis of the SMARCAD1 Gene in a Family with Basan Syndrome and a Literature Review

    Abstract
  •   Objective  To summarize the clinical features of a family with Basan syndrome and to analyze mutation of the SMARCAD1 gene.
      Methods  The Basan family was diagnosed at Dermatology Hospital, Southern Medical University in 2022. Backgroud data was collected, and clinical and genetic characteristics were analyzed. Meanwhile, a retrospective analysis of features and associated genetic mutations reported in all patients with Basan syndrome was conducted.
      Results  A total of 18 patients with Basan syndrome were identified, including 9 males and 9 females. All 18 patients had no fingerprints at birth (18/18, 100%), and some patients had knuckle pads, palmoplantar hyperkeratosis, nail atrophy, nail separation, and longitudinal nail ridges. Symptoms vary in severity. At the same time, it was found that c.-10+1G > T (as well as c.378+1G > T)mutations appeared on the intron 1 of the SMARCAD1 (NM_020159.5) gene in 7 patients, resulting in abnormal splicing.
      Conclusions  This article provides help for the early diagnosis of Basan syndrome and helps to improve the diagnosis and differentiation level of clinicians.
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