A Treatable Genetic Disease Caused by CAD Mutation

Area of Science:

• Genetics
• Neurology
• Pediatrics

Background:

• Early infantile epileptic encephalopathy type 50 (EIEE-50) is a rare autosomal recessive disorder.
• It is caused by mutations in the CAD gene, with limited existing literature.
• Affected individuals often present with severe neurological and developmental challenges.

Purpose of the Study:

• To report a case of EIEE-50 in a young male patient.
• To highlight the diagnostic findings, including compound heterozygous CAD mutations.
• To evaluate the efficacy of uridine treatment for EIEE-50.

Main Methods:

• Whole-exome sequencing was performed to identify genetic mutations.
• Clinical data including developmental status, epilepsy, and anemia were recorded.
• The patient received uridine treatment, and outcomes were monitored.

Main Results:

• The patient was diagnosed with EIEE-50 due to compound heterozygous CAD mutations.
• He exhibited global developmental delay, regression, refractory epilepsy, and anemia.
• Uridine treatment led to encouraging clinical improvements.

Conclusions:

• This case expands the understanding of EIEE-50 clinical presentation and genetic basis.
• Uridine therapy presents a potential therapeutic option for EIEE-50.
• Further research is warranted to confirm uridine's efficacy and optimize treatment strategies.