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Fazio Londe syndrome: A treatable disorder
Poovazhagi Varadarajan1, Vimal Thayanathi2, Leema C Pauline3
1Department of Pediatrics, Government Raja Mirasdar Hospital, Thanjavur Medical College, Thanjavur, India.
Insights
Fazio Londe Syndrome, a rare neurological disorder, is linked to SLC52A3 gene mutations affecting riboflavin transport. This case highlights respiratory failure in an 11-year-old with these features.
Area of Science:
- Neurology
- Genetics
- Rare Diseases
Background:
- Fazio Londe Syndrome is a rare neurological disorder characterized by progressive bulbar palsy and respiratory failure.
- Historically, it was considered to have a poor prognosis.
Observation:
- A previously healthy 11-year-old child presented with acute respiratory failure.
- The child exhibited clinical features consistent with Fazio Londe Syndrome.
Findings:
- Genetic analysis revealed mutations in the SLC52A3 gene.
- This gene encodes the intestinal riboflavin transporter (hRFT2), suggesting a link between riboflavin transport and the syndrome's pathogenesis.
Implications:
- Identifies a genetic basis for Fazio Londe Syndrome in some cases, specifically mutations in SLC52A3.
- Suggests potential therapeutic strategies targeting riboflavin metabolism or transport.
- Highlights the importance of genetic testing in diagnosing rare neurological disorders with respiratory compromise.
Abstract:
Fazio Londe Syndrome is a rare neurological disorder presenting with progressive bulbar palsy with respiratory failure. Initially considered to have an unrelenting course, is now found to be due to mutations in the SLC52A3 gene which encodes the intestinal (hRFT2) riboflavin transporter in some children. We report an 11-year-old child with features of Fazio Londe syndrome who presented to our Institute with respiratory failure.
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