Barth syndrome

Area of Science:

• Genetics
• Biochemistry
• Pediatrics

Background:

• Barth syndrome (BTHS) is a rare X-linked genetic disorder.
• It is characterized by cardiomyopathy, skeletal myopathy, neutropenia, and 3-methylglutaconic aciduria.
• The disorder is caused by mutations in the tafazzin (TAZ) gene, affecting cardiolipin remodeling.

Purpose of the Study:

• To highlight the multi-systemic nature of Barth syndrome.
• To emphasize the diagnostic challenges posed by its variable presentation.
• To discuss current diagnostic and management strategies for BTHS.

Main Methods:

• Review of clinical features and genetic basis of Barth syndrome.
• Discussion of diagnostic methods including cardiolipin testing and TAZ gene sequencing.
• Overview of management approaches, including medical therapy and G-CSF.

Main Results:

• BTHS presents with a wide spectrum of clinical features, often leading to under-diagnosis.
• TAZ gene mutations impair cardiolipin remodeling, impacting mitochondrial function.
• Cardiolipin testing and TAZ sequencing offer definitive diagnostic capabilities.

Conclusions:

• Barth syndrome is a multi-system disorder requiring a multidisciplinary approach.
• Early and accurate diagnosis through genetic and biochemical testing is vital.
• Effective management strategies can improve patient outcomes and longevity.