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An In Vitro Model for the Study of Cellular Pathophysiology in Globoid Cell Leukodystrophy
Published on: October 21, 2014
[Complex glycerol kinase deficiency in three children]
Xiu-Zhen Li1, Li Liu, Hui-Fen Mei
1Department of Endocrinology and Metabolism, Guangzhou Children's Hospital, Guangzhou 510120, China.
Glycerol kinase deficiency (GKD) in males presents with hypoadrenocorticism and Duchenne muscular dystrophy. While treatment improved adrenal symptoms, developmental delays and myasthenia persisted, with two patients succumbing to adrenal crisis.
Area of Science:
- Genetics
- Pediatrics
- Endocrinology
Background:
- Glycerol kinase deficiency (GKD) is a rare X-linked recessive disorder.
- It presents as isolated or complex forms, with complex GKD involving Xp21 contiguous gene deletions.
Observation:
- Three male infants presented with neonatal symptoms.
- The predominant clinical profile included hypoadrenocorticism, glyceroluria, and Duchenne muscular dystrophy.
- Gas chromatography-mass spectrometry confirmed elevated urinary glycerol concentrations.
Findings:
- Treatment with a low-fat diet and glucocorticoid replacement alleviated hypoadrenocorticism symptoms.
- Patients experienced significant developmental delays and myasthenia.
- Two of the three patients died from adrenal crisis during follow-up.
Implications:
- Complex GKD requires careful management of endocrine and neurological complications.
- Early diagnosis and intervention are crucial for improving outcomes in affected individuals.
- Further research into the genetic basis and therapeutic strategies for GKD is warranted.
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