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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


As a child, the participant was found to have webbed toes (syndactyly) and flat feet. He had surgery for flat feet when he was 12 years old, which included bone grafts and an Achilles tendon release. Around this time he was also diagnosed with a mild curvature of the spine … read more

When the participant was 2 days old, she was found to be arching backwards. It was suspected that she was having a seizure, but follow-up testing was normal. She has not had any seizure-like episodes since. Early in life, she was also found to have hearing loss (sensorineural hearing impairment) … read more

progressive muscle weakness

At the age of 8, the patient started having difficulty climbing at school. She was unable to pull herself onto a horse or get into the car. She also walked differently than other children due to a waddling walk and would run as if she had “lead in her shoes”. … read more

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