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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


atopic dermatitis

As a young child, the patient had eczema, allergies, and asthma. At age 19, her symptoms started to get much worse. She developed severe itchy skin inflammation (atopic dermatitis) on her face and entire body. This inflammation improved with cyclosporine, but came back when the medication dose was lowered. The … read more

The participant was born at term after an uncomplicated pregnancy and delivery. Shortly after birth he was noted to have low muscle tone (hypotonia) and feeding difficulties, and was treated with physical therapy. He began to have seizure episodes (generalized tonic-clonic) at 2 months old after developing a fever following … read more

As an infant, the participant was very unhappy, often screaming and appearing uncomfortable. She met early developmental milestones, but had problems with coordination (ataxia) and displayed a tremor (action tremor) when reaching for items. Following an illness around 9 months of age, the participant appeared to regress in skills, which … read more

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