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Our Current Research

Model Organisms

The Model Organisms Screening Center (MOSC) for the Undiagnosed Diseases Network (UDN) is composed of two Centers that use fruit fly (Drosophila melanogaster), nematode worm (Caenorhabditis elegans) and zebrafish (Danio rerio) genetics and biology to tackle rare and undiagnosed diseases.

Genes of interest

WRNIP1 PRDM16 PIK3CD MED13L BSN MED14

Meet Our Participants


The participant was born full term after a pregnancy complicated by gestational diabetes and hypothyroidism in his mother. He was delivered by cesarean section due to his large size. A left club foot was identified before birth and was repaired at 2 months old. At 4 months he was noted … read more

IRF2BPL

The patient was meeting his developmental milestones until age 2.5 when he started losing skills. He was previously able to walk, but now has trouble sitting and holding his head upright. He has lost his fine motor skills and keeps his hands in a fist position. His parents report that … read more

26 weeks into the pregnancy, the participant was found to have intrauterine growth restriction (IUGR). She was born early at 34 weeks weighing 3 pounds and was fed through a G-tube as an infant. As she has grown up, she continues to be very small for her age and gaining … read more

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