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 healthy and developing normally until 10 years old when she started experiencing fatigue and weakness. She developed hive-like skin findings that covered her whole body. These went away on their own but came back over time, each time more severely than before. They were thought to be … read more

The participant was born at 39 weeks following a pregnancy complicated by severe nausea and vomiting (hyperemesis gravidarum). At birth, he made different breathing sounds, and his feet were flexed upwards, but no significant complications occurred while he was at the hospital. Once he came home, he had feeding issues … read more

The participant has a 15-year history of progressive muscle weakness and fatigue. At first, she noticed muscle cramping and pain after physical activities. This became more frequent and severe over time. The cramping occurs both in her upper and lower extremities. More recently, the participant began experiencing cramping in her … read more
