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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

PRDM16 PIK3CD MED13L BSN MED14 MARS1

Meet Our Participants


Shortly after birth, the patient was found to have pyloric stenosis, a condition in which muscles block food from entering the small intestine. She underwent surgery to correct this at 9 weeks. Currently she has reduced functioning of her stomach and intestines (reduced gastric and intestinal motility) and constipation. She … read more

Prior to age 25, the participant was healthy and was living on her own with a job after graduating from college with a degree in political science. First, the participant started having severe OCD symptoms. The participant was prescribed a low dose of an antidepressant, which seemed to stabilize her … read more

The participant was in excellent health until about three years ago when she started experiencing severe bilateral vocal cord spasms. This came on very suddenly and impacted her ability to breathe. She underwent an emergency tracheostomy and, since this procedure, her breathing has improved greatly. Over the past few years, … read more

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