Professor Maritha Kotze founded Gknowmix in 2007 with the vision to develop a global genetic testing service delivery system and database tool for research translation at the interface between the laboratory and clinic. As evidenced by her scientific outputs, this has been accomplished through multi-disciplinary research initiatives. In 2016 she has been appointed as a registered medical scientist at the National Health Laboratory Service (NHLS), at Tygerberg Hospital. Since obtaining her PhD degree at Stellenbosch University in 1990, she supervised numerous postgraduate students and received the Rector's Award for Research Excellence in 1999. Her publications include more than 100 peer-reviewed articles and invited chapters in books. She received a patent incentive award in 2005 and was identified during this time by the Institute for Scientific Information in the USA as one of the 20 highest ranking active publishers in the biomedical field in South Africa. In 2015 she was selected as a committee member of the newly established Cape Town Breast Cancer Forum.
Qualifications: BSc, BSc Honours, MSc (all cum laude), PhD.
Field of Practice: Human genetics

Maritha Kotze
Maritha Kotze
Prof Susan J van Rensburg is an HPCSA registered medical scientist and Scientific Advisor of Gknowmix. She completed her BSc at the University of the Witwatersrand, majoring in Chemistry, Biochemistry and Botany. She received an Hons degree in Biochemistry at Northwest University’s Potchefstroom campus, and an MSc at Stellenbosch University. She joined the Department of Chemical Pathology at Tygerberg Hospital in 1986 in the MRC Research Unit for the Neurochemistry of Mental Diseases. She graduated with a PhD in Medical Sciences (Chemical Pathology) in 1993, investigating the relationship between genetic and environmental factors in the aetiology of Alzheimer’s disease. In the same year she received the Beckman Post-Graduate Bursary Award, and in 1999 the Bristol-Myers Squibb Travel Award for the “Most Promising Neuroscientist”. Continuing with the Neuroscience theme, she collaborated with the Department of Psychiatry to evaluate the efficacy of the fatty acid EPA as supplemental treatment in schizophrenia. In 2003 she joined a research project relating to multiple sclerosis (MS). From this collaborative project the concept of Pathology Supported Genetic Testing was born. She received the Bayer Senior Researcher Award in 2006 for an article on MS. She has published more than 70 peer-reviewed articles and five book chapters and she has co-registered two patents. She is currently an Emeritus Associate Professor in the Division of Chemical Pathology, Tygerberg Hospital, University of Stellenbosch.
Qualifications: BSc, BSc Honours, MSc, PhD.
Field of Practice: Biochemistry

Prof Susan J van Rensburg
Dr Tony Bunn is the executive director of Gknowmix. He obtained his PhD in Medical Science in 1980 and his research lead to the creation of one of the first SA university spin-out companies in 1984. Subsequent research has lead to the formation of another four successful start-up companies, all based on securing critical IP. He has also served as Chairman of a listed public company.  He has published extensively in peer-reviewed journals and supervised numerous MSc and PhD postgraduates. Tony presently holds an honourary position as associate professor in biomedical engineering at the University of Cape Town and was Director of the  MRC Innovation Centre managing innovation opportunities emanating from MRC research discovery. Tony was instrumental in the establishment of Gknowmix as a spin-out company of the MRC and co-developed its unique business model. He is frequently invited to speak on technology transfer and innovation issues at both national and international meetings.
Qualifications: BSc(Hons) Cum Laude, MSc, PhD, UED.
Field of Practice: Research Innovation

Tony Bunn
Lujane Nutt is the General Manager of the Gknowmix genetic testing service delivery system and database tool, which enables research translation at the interface between the laboratory and clinic. This role is complemented by her skills as a volunteer counsellor of the Cancer Association of South Africa. She comes from a diplomatic family background living in The Netherlands and France during her childhood years, and later living in Taiwan, Spain and Greece as a diplomats’ wife. They moved to Cape Town in 2000 where she gained invaluable experience in the medical field, which included various courses such as secretarial, customer related services, marketing and management, eventually taking up the position of Customer Services and Marketing Manager at a Netcare Hospital. In 2012 she obtained a certificate in Digital Marketing to further her knowledge into private business marketing in the modern world of technology.

Lujane Nutt

Emeritus Professor Peter Beighton is a medical geneticist who underpins the genetic counselling service and other clinically orientated activities offered by Gknowmix. He reviewed and approved the E-book that can be downloaded from this website, which provides a comprehensive overview of our pathology supported genetic testing concept. His academic awards include Fulbright and Oppenheimer Fellowships, a Silver Medal from the Medical Research Council (1997) and the Order of Mapungubwe, Bronze award for outstanding achievements in medical genetics (2002). His publications exceed 400 medical articles, including 19 books plus 24 chapters in books.
Qualifications: MD, PhD, FRCP, FRCPCH, FRSSA
Field of Practice: Medical genetics


Peter Beighton
Julie Malan is a registered genetic counsellor with a special interest in breast cancer genetics. She graduated in 1993 with a BSc degree from the University of Pretoria and obtained her MSc degree in Genetic Counselling 5 years later. In 2003 Julie registered as the first private practicing genetic counsellor in South Africa and was appointed as the Genecare consultant genetic counsellor between 2003 and 2007. From 2008 she became part of the Gknowmix Genetic Care Centre and works as in independent counsellor in close collaboration with clinicians at various hospitals in the Gauteng region. She also offers telephonic counselling if necessary.
Qualifications: BSc, MSc (Human Genetics)
Field of Practice: Genetic Counselling

Julie Malan

Dr David Pieter van Velden is a registered Family Physician with a special interest in lifestyle-related diseases and the interaction of environmental influences on genetic predisposition in the management of chronic and degenerative diseases. He is very active in the scientific reporting of health-related issues for the lay-public, and initiated research in Integrative Medicine to stimulate the natural healing potential of the body. He is a strong advocate of natural interventions such as diet and exercise to manage the modern lifestyle-related diseases and support the application of pathology supported genetic testing to identify modifiable gene-environment interactions in the phenotypic expression of disease.
Qualifications: MB, ChB (US), M Prax Med (UP), M Phil (Journalism) (US) Field of Practice: Medical Journalist

Dr Davied Pieter van Valend
Lindiwe Whati is a registered dietician and nutrigenetics expert. She graduated in 2000 with a BSc (Dietetics) degree at the University of the Western Cape and obtained an MSc degree in Nutrition Science in 2005 from the University of Stellenbosch. She has been appointed as the Genecare consultant dietician from 2004-2006. She is actively involved with Gknowmix in the co-development of new tests for conditions where gene-diet interaction plays an important role. Previous experience in the field of nutrition includes management of chronic diseases in adults, nutrition therapy for hospitalised adults and children, nutrition education and research, as well as project management. She is registered with the Health Professions Council of South Africa and a member of the Association for Dietetics South Africa.
Qualifications: BSc (Dietetics), MSc (Nutrition Science)
Field of Practice: Dietetics and Nutrigenetics


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