Related Experiment Videos
Brain creatine depletion: guanidinoacetate methyltransferase deficiency (improving with creatine supplementation)
V Leuzzi1, M C Bianchi, M Tosetti
1Dipartimento di Scienze Neurologiche e Psichiatriche dell'Età Evolutiva, Università La Sapienza, Rome, Italy.
Insights
Guanidinoacetate methyltransferase deficiency in a child caused severe neurological issues. Creatine supplementation successfully reversed these symptoms, highlighting its therapeutic potential.
Area of Science:
- Biochemistry
- Neurology
- Genetics
Background:
- Guanidinoacetate methyltransferase (GAMT) deficiency is a rare inherited metabolic disorder.
- It leads to creatine deficiency in the brain, causing severe neurological impairment.
Observation:
- An Italian child presented with neurologic regression, movement disorders, and epilepsy within the first year of life.
- Brain MRI revealed characteristic pallidal and periaqueductal alterations.
- In vivo 1H-MRS confirmed significant brain creatine depletion.
Findings:
- Diagnosis was confirmed by elevated guanidinoacetic acid levels in biological fluids.
- The child showed marked clinical, biochemical, and neuroradiologic improvement after initiating creatine supplementation.
Implications:
- This case underscores the importance of early diagnosis and intervention for GAMT deficiency.
- Creatine supplementation represents a viable and effective therapeutic strategy for this condition.
- Highlights the role of creatine in brain development and function.
Abstract:
The authors describe an Italian child with guanidinoacetate methyltransferase deficiency, neurologic regression, movement disorders, and epilepsy during the first year of life. Brain MRI showed pallidal and periaqueductal alterations. In vivo 1H-MRS showed brain creatine depletion. The assessment of guanidinoacetic acid concentration in biologic fluids confirmed the diagnosis. Clinical, biochemical, and neuroradiologic improvement followed creatine supplementation.