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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

ETFDH WRNIP1 PRDM16 PIK3CD MED13L BSN

Meet Our Participants


The participant was noticed to have developmental delays early in life. She also began to have seizures around age 6. At age 12, she started to have involuntary muscle contractions (dystonia). She developed difficulty speaking (dysarthria) as well, but this has since improved. In addition to these symptoms, the participant … read more

The participant’s mother had an uncomplicated pregnancy with normal labor and delivery. He met all of his developmental benchmarks until he was 24 months, at which he began to plateau. At 26 months, the participant’s motor and speech skills began to regress, and he began to be less social. The … read more

The participant spent the first 19 days after birth in the neonatal intensive care unit (NICU) because of respiratory distress, feeding issues, low muscle tone (hypotonia) and slow heart rate (bradycardia). She was also found to have a heart defect (atrial septal defect). An initial MRI showed almost complete lack … read more

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