Every year hundreds of patients face uncertainty when healthcare providers are unable to discover the cause for their symptoms.
The Undiagnosed Diseases Network (UDN) is a research study backed by the National Institutes of Health that seeks to provide answers for patients and families affected by these mysterious conditions.
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.
Publications
In elementary school, the participant was found to have bumps under the skin of his arms. These bumps were biopsied and found to be lipomas. At the age of 6, he had rectal bleeding and a colonoscopy showed a large juvenile polyp in the sigmoid colon and a smaller juvenile … read more

During pregnancy, the participant was found to have poor growth (intrauterine growth restriction) and there was more amniotic fluid than normal (polyhydramnios). After birth, he had trouble breathing and low Apgar scores. He was found to have multiple skeletal anomalies (metaphyseal widening, tibial and fibular bowing, cervical spinal canal stenosis) … read more

The participant’s parents first became concerned about her development at 18 months when they noticed that she had not started talking or walking independently. The participant continued to be delayed in meeting developmental milestones throughout her childhood. Between 18 months and 3 years, she also developed rigid and obsessive-compulsive behavior … read more
