双膦酸盐
医学
复合杂合度
骨质疏松症
脊柱侧凸
后凸
杂合子优势
听力损失
表型
基因型
皮肤病科
遗传学
内科学
听力学
基因
外科
生物
射线照相术
作者
Gönül Büyükyılmaz,Keziban Toksoy Adıgüzel,Esra Kılıç
摘要
Spondylo-ocular syndrome is a rare autosomal recessive disorder characterized by generalized osteoporosis, hearing loss, visual impairment due to cataract, and platyspondyly. Previous studies have revealed that the syndrome is caused by pathogenic variants in the XYLT2 gene. A patient with spondylo-ocular syndrome and two heterozygous pathogenic variant in the XYLT2 gene in compound state are described here. The patient presented with osteoporosis, platyspondyly, ocular findings, hearing loss, kyphosis, scoliosis, facial findings, intellectual disability, and undescended testicles. Previous reports of bisphosphonate treatment response were variable, whereas a long-term follow-up with bisphosphonate treatment in this case resulted in normalization of vertebral structures. Reporting such cases helps to determine the appropriate genotype-phenotype correlation in patients with XYLT2-related pathogenesis.
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