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

The participant was born via C-section at 38 weeks old. Shortly after birth, he had jaundice and twisting of the neck (torticollis). As a toddler, his speech and other developmental milestones were delayed. He also had frequent nosebleeds as a child. He developed chronic eczema at around 5 months old … read more
The participant noticed that he was weaker than his peers in childhood. At age 23, he noticed difficulty getting up from a squatting position and climbing stairs, and began experiencing progressive muscle weakness involving muscles in his arms, legs, face, and eyes. He also developed heart muscle disease (dilated cardiomyopathy) … read more

At 20 months, the patient’s parents noticed that he was chewing and eating parts of his crib (pica). At this time, he was found to have low hemoglobin. He underwent an extensive workup, but the cause of his symptoms was not identified. Currently the patient receives iron supplementation to keep … read more
