Centre for Human Metabolomics, Professor of
Biochemistry and Deputy Director of School of Physical and Chemical Sciences,
North-West University, Potchefstroom, South Africa
Prof Francois H van der Westhuizen, PhD
Genetics and preclinical science expertise and
Our centre hosts several diagnostic and research laboratories involved in rare inherited diseases in South Africa (http://natural-sciences.nwu.ac.za/human-metabolomics). These are the Potchefstroom Laboratory for Inborn Errors of Metabolism (PLIEM), the New-born Screening Laboratory, the National Metabolomics Platform, and specialist laboratories such as the Mitochondria Research Laboratory (http://natural-sciences.nwu.ac.za/mitochondrial-laboratory/research-focus). These laboratories serve South African and African populations with biochemical, metabolic molecular genetic diagnostics and research. The centre has established networks and collaborations on the continent and abroad and use state-of-the-art genomic (Ion Torrent based) and metabolomic infrastructure and bioinformatics.
Current research programmes:
Although the centre's diagnostic services encompass a wider scope of rare inherited diseases, the main research program is on mitochondrial disease (MD) in the African population. The main themes of research are on the diagnostic approaches and aetiology of MD in the South African population, genotype-phenotype variation, metabolomics & biomarker/biosignature identification for MD, and the use of disease models to study adaptive responses and therapeutic interventions in MD.
Top five publications from the past five years:
Schoonen M, Smuts I, Louw R, Elson JL, van Dyk E, Jonck L-M, Rodenburg R, van der Westhuizen FH. Panel-based nuclear and mitochondrial next-generation sequencing outcomes of an ethnically diverse paediatric patient cohort with mitochondrial disease. Journal of Molecular Diagnostics, in press.
Terburgh K, Lindeque JZ, Mason S, van der Westhuizen FH, Louw R. Metabolomics of Ndufs4/ skeletal muscle: adaptive mechanisms converge at the ubiquinone-cycle. 2019. BBA - Molecular Basis of Disease 1865, 98-106.
Louw R, Smuts I, Wilsenach, K-L, Jonck L-M, Schoonen M, van der Westhuizen FH. The dilemma of diagnosing Q10 deficiency in muscle. 2018. Molecular Genetics and Metabolism 125, 38-43.
van der Westhuizen FH, Smuts I, Honey E, Louw R, Schoonen M, Jonck L-M, Dercksen M. 2018. A novel mutation in ETFDH manifesting as severe neonatal-onset multiple acyl-CoA dehydrogenase deficiency. Journal of the Neurological Sciences 384, 121-125.
van der Westhuizen FH, Sinxadi P, Dandara C, Smuts I, Riordan G, Meldau S, Malik A, Sweeney M, Tsai Y, Towers W, Louw R, Gorman G, Payne B, Soodyall H, Pepper MS, Elson JL. 2015. Understanding the implications of mitochondrial DNA variation in the health of Black South African populations. Human Mutation 36, 569-571.
How the new international centre will benefit
research and clinical programmes:
The involvement of our South African network of participants in the ICGNMD has the potential to greatly improve the clinical and genetic diagnostic serves offered to SA patients with NMD. We would also like to contribute to the global knowledge on the aetiology and, ultimately, treatment of NMD. Specifically for my centre, participating in a national and global effort such as this, will allow us to contribute to research and diagnostic efforts with greater impact and more effective outcomes for our communities.