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 patient has multiple chronic medical problems including esophagus damage (achalasia), low cortisol, an inability to produce tears (alacrimia), severe pain with urination, delayed gastric emptying (gastroparesis), autonomic nervous system dysfunction (dysautonomia), increased heart rate (supraventricular tachycardia), and bipolar affective disorder. The patient also recently transitioned from female to male … read more

The patient was in excellent health until age 45 when she started to notice muscle weakness and difficulty keeping up while playing sports. Her muscle weakness has continued to worsen and she now has balance problems, muscle twitching (fasciculations) and cramps, and difficulty with coordination. She has significant respiratory muscle … read more

Early on in life, the participant was very unhappy, often screaming and appearing uncomfortable. Around 2 months, she was noticed to have low muscle tone (hypotonia). A brain MRI was performed, which was abnormal (large cerebellum). She proceeded to have genetic testing (microarray), which identified a chromosomal deletion (983.10 kb … read more
