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罕见卡瓦哈尔综合征合并扩张型心肌病一例桥粒斑蛋白基因的新变异:一病例报告及文献综述
Authors Zhao XJ, Bai CY, Li XY, Wang L, Wang RP, Xia Y, Liu G, Zhao HL , Xu HZ
Received 5 July 2023
Accepted for publication 14 September 2023
Published 29 September 2023 Volume 2023:16 Pages 2737—2748
DOI https://doi.org/10.2147/CCID.S429030
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Dr Jeffrey Weinberg
Abstract: Carvajal syndrome is a rare hereditary cardiocutaneous syndrome caused by the variants of the desmoplakin (DSP ) gene. In this study, we report a patient of Carvajal syndrome with a novel homozygous missense variant of DSP gene. We diagnosed a 7-year-old female patient with Carvajal syndrome characterized by dilated cardiomyopathy, palmoplantar keratoderma, woolly hair, and dental dysplasia, who disclosed a novel homozygous missense variant c.4597C > T (p.Q1533X) in exon 6 of the DSP gene found for the first time. Both her parents were heterozygous for the identified nonsense variant c.4597C > T (p.Q1533X) in DSP gene but neither showed evidence of Carvajal syndrome, indicating that this novel variant causes the disease in an autosomal recessive manner. Genotypes of Carvajal syndrome are even broader than so far anticipated. When patients with dilated cardiomyopathy, palmoplantar keratoderma, woolly hair, and dental dysplasia are found in clinical practice, Carvajal syndrome should be highly suspected, and family gene sequencing should be actively carried out.
Keywords: Carvajal syndrome, desmoplakin , genotype, variant, novel