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Updated: Jun 28, 2025

In Vivo Functional Study of Disease-associated Rare Human Variants Using Drosophila
Published on: August 20, 2019
A novel variant in IFT122 associated with a severe phenotype of cranioectodermal dysplasia
Shiho Nagayama1, Hironori Takahashi1, Fuyuki Hasegawa2
1Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Japan.
Abstract:
A 27-year-old multiparous woman conceived her fetus naturally. Early second-trimester ultrasound showed short extremities with systemic subcutaneous edema. The pregnancy was artificially terminated at 19 weeks of gestation because of the abnormalities based on the parents' wishes. The parents desired whole-exome sequencing to detect a causative gene using the umbilical cord and the parents' saliva. Compound heterozygous variants (NC_000003.11(NM_052989.3):c.230 T > G/NC_000003.11(NM_052985.4):c.1178A > T) were identified. We described a fetus with a novel compound heterozygous variant in IFT122. The phenotype of this case was severer than of other types of cranioectodermal dysplasia.
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