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Leukodystrophies: Indian scenario
1Department of Neurology, Bombay Hospital Institute of Medical Sciences, Mumbai, India. bssingl@vsnl.com
Indian Journal of Pediatrics
|May 7, 2005
Summary
Megalencephalic leukodystrophy with subcortical cysts is a common genetic disorder in India, characterized by a large head and white matter changes. An identical mutation in the MLC 1 gene suggests a founder effect in the Agarwal community.
Area of Science:
- Neurology
- Genetics
- Pediatrics
Background:
- Leukodystrophies are inherited neurological disorders typically presenting in infancy or childhood.
- Clinical manifestations include motor dysfunction and cognitive decline.
- Magnetic Resonance Imaging (MRI) is crucial for diagnosis and characterization.
Purpose of the Study:
- To describe Megalencephalic Leukodystrophy with subcortical cysts (MLC), the most common leukodystrophy in India.
- To highlight its clinical and MRI features.
- To investigate the genetic basis within the Agarwal community.
Main Methods:
- Clinical case description and analysis.
- Review of Magnetic Resonance Imaging (MRI) findings.
- Genetic analysis of the MLC 1 gene.
Main Results:
- Megalencephalic Leukodystrophy with subcortical cysts presents with macrocephaly, mild motor and cerebellar dysfunction, and seizures.
- MRI reveals extensive white matter abnormalities and temporal cysts.
- A common mutation in exon 2 of the MLC 1 gene was identified in the Agarwal community, indicating a founder effect.
Conclusions:
- Megalencephalic Leukodystrophy with subcortical cysts is a significant genetic disorder in India, particularly within the Agarwal community.
- Genetic analysis points to a founder effect for this leukodystrophy.
- Further research into leukodystrophies is essential for improved diagnosis and treatment.