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Molecular genetic investigation of autosomal recessive neurodevelopmental disorders

Kurian, Manju Ann (2010)
Ph.D. thesis, University of Birmingham.

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Abstract

Development of the human brain occurs in a number of complex pre- and postnatal stages which are governed by both genetic and environmental factors. Aberrant brain development due to inherited defects may result in a wide spectrum of neurological disorders which are commonly encountered in the clinical field of paediatric neurology. In the work for this thesis, I have investigated the molecular basis and defined the clinical features of three autosomal recessive neurological syndromes. I studied a cohort of children with early onset epileptic encephalopathy and, in one family, identified a novel homozygous pathogenic mutation of PLCB1. I have also utilised autozygosity mapping techniques to study consanguineous families with a complex motor disorder, infantile parkinsonism-dystonia, and identified loss-of function mutations in the gene encoding the dopamine transporter (SLC6A3). Subsequent acquisition of a cohort of similarly affected children allowed detailed clinical and molecular characterisation of this novel disorder, dopamine transporter deficiency syndrome. Finally I have delineated the clinical and genetic features of PLA2G6-associated neurodegeneration. The identification of disease-causing genes contributes greatly to understanding the disease mechanisms underlying such early-onset disorders, and also provides novel insights into normal human neurodevelopment.

Type of Work:Ph.D. thesis.
Supervisor(s):Maher, Eamon R
School/Faculty:Colleges (2008 onwards) > College of Medical & Dental Sciences
Department:School of Clinical and Experimental Medicine
Subjects:RJ Pediatrics
Institution:University of Birmingham
ID Code:1126
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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