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Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
Published on: April 19, 2017
[Paroxysmal crying and motor regression for more than two months in an infant]
Yong-Xin Wen1, Jia-Ping Wang, Yan Chen
1Department of Pediatrics, Peking University First Hospital, Beijing 100034, China. zwhang@pku.edu.cn.
Insights
Early diagnosis and treatment with biotin and thiamine can significantly improve outcomes for biotin-thiamine responsive basal ganglia disease (BTBGD). This treatable genetic disorder involves specific SLC19A3 gene mutations.
Area of Science:
- Genetics
- Neurology
- Biochemistry
Background:
- Biotin-thiamine responsive basal ganglia disease (BTBGD) is a rare, treatable autosomal recessive disorder.
- It is characterized by neurological symptoms such as irritability, motor regression, and opisthotonus, often presenting in early childhood.
- Genetic mutations in the SLC19A3 gene are implicated in the pathophysiology of BTBGD.
Abstract:
The patient was a male who was found to be abnormal at the age of 4.5 months. He presented with irritability, motor regression and opisthotonus. Brain MRI revealed bilateral abnormality in the lentiform nucleus, thalamus, deutocerebrum and cerebellar hemispheres. Novel compound heterozygous mutations of SLC19A3 gene, c.950G>A(p.G317E) and c.962C>T(p.A321V), were found in the patient. Further study showed that c.950G>A was inherited from his father and c.962C>T came from his mother. Using bioinformatics software analysis, both of the mutations were found to be harmful. His symptoms were improved remarkably after biotin, thiamine and "cocktail" therapy. One month later a brain MRI revealed that the lesions in basal ganglia and cerebellar hemispheres were improved. The patient was definitely diagnosed with biotin-thiamine responsive basal ganglia disease (BTBGD). BTBGD is a treatable autosomal recessive disease and early administration of biotin and thiamine may lead to clinical improvement.
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