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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


The participant’s parents first noticed that the participant was not meeting her developmental milestones at 9 months. At 11 months, she started having seizures (infantile spasms). An MRI at 11 months was normal; however, she had an abnormal EEG (hypsarrhythmia) that was consistent with epileptic encephalopathy. Despite medications, her seizures … read more

The participant was born at 33 weeks and stayed in the NICU for three weeks. While in the NICU, she received breathing and nutrition support though a CPAP (Continuous Positive Airway Pressure) machine and NG (nasogastric) tube. She was identified by newborn screening to have very low T-cell lymphocyte levels. … read more

The participant was born early at 35 weeks and had feeding difficulties and breathing issues after birth. At 5 months, he was hospitalized for poor feeding and failure to thrive. At this time, he was also diagnosed with developmental delay. Two months later, he underwent G-tube placement to help with … read more

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