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06 March 2020 | Story Igno van Niekerk | Photo Igno van Niekerk
 Gert Marais looking at pecan leave_
Dr Gert Marais says the UFS is helping to ensure that the pecan industry not only survives but thrives.

“When opportunity knocks, you must jump. The more opportunity knocks, the more you should jump.” 

Look closely, and you will notice the rise in pecan-nut plantations as you travel through South Africa. Do not be surprised if you find that the UFS’s pecan-nut project – steered by Dr Gert Marais, Senior Lecturer in the Department of Plant Sciences – is associated with those pecans.

Main exporter
In an ever expanding and interconnected global economy, South Africa has joined the USA as main exporters of pecan nuts to China. We have several advantages; our seasons differ from that of the USA, and we have the benefit that we are harvesting and exporting pecan nuts at the time when they are most popular at Chinese festivals and events.

Although it takes a long time to grow pecan trees (seven to eight years before they start producing), the long wait has extensive benefits. Dr Marias explains: “Unlike other crops, you do not have to prepare the soil and plant new crops annually. Rather than re-investing, you only need to do proper maintenance. Once planted, the pecan trees can produce for generations to come. And the UFS is involved in ensuring that the pecan industry not only survives but thrives.”

Empowering farmers
As the pecan industry in South Africa grows, new challenges are identified. Some trees suffer from a condition called overall decline, others from scab, and some others are infested by combinations of fungi not found in other countries. Dr Marais and his team have filed several ‘first reports’ of combinations between pecans and pathogens, leading to opportunities for MSc research projects and making a difference in the industry.

Dr Marais undertakes six field trips per year to visit all the production areas in South Africa, share information at farmer’s days, arrange courses to ensure best practices with regard to pecan cultivation; students also use these visits to collect samples for their research. Due to the systemic collaboration between the private sector and the university, farmers are empowered to manage their pecan crops better, the university benefits from cutting-edge research, and South Africa becomes a stronger player in the international economy.

Opportunity is knocking. And the UFS is jumping.

News Archive

Cardiology Unit involved in evaluation of drug for rare genetic disease
2013-01-04

Front from the left, are: Marinda Karsten (study coordinator and registered nurse),
Laumarie de Wet (clinical technologist), Charmaine Krahenbuhl (study coordinator and radiographer),
Lorinda de Meyer (administrator), Andonia Page (study coordinator and enrolled nurse);
back Dr Gideon Visagie (sub investigator), Dr Derick Aucamp (sub investigagtor),
Prof. Hennie Theron, (principal investigator) and Dr Wilhelm Herbst (sub investigator).
Photo: Supplied
09 January 2013


The Cardiology Research Unit at the University of the Free State (UFS) contributed largely to the evaluation of the drug Juxtapid (lomitapide), which was developed by the Aegerion pharmaceutical company and approved by the FDA (Federal Drug Administration). Together with countries such as die USA, Canada and Italy, the UFS’ Unit recruited and evaluated the most patients (5 of 29) for the study since 2008.  

The drug was evaluated in persons with so-called familial homozygous hypercholesterolemia (HoFH).  

Following its approval by the FDA, Juxtapid is now a new treatment option for patients suffering from HoFH. The drug operates in a unique way which brings about dramatic improvements in cholesterol counts.  

According to Prof. Hennie Theron, Associate Professor in the Department of Cardiology at the UFS and Head of the Cardiology Contract Research Unit, HoFH is a serious, rare genetic disease which affects the function of the receptor responsible for the removal of low-density lipoprotein cholesterol (LDL-C) (“bad” cholesterol) from the body. Damage to the LDL receptor function leads to extremely high levels of blood cholesterol. HoFH patients often develop premature and progressive atherosclerosis, which is a narrowing or blockage of the arteries.  

“HoFH is a genetically transmitted disease and the most severe form of hypercholesterolemia. Patients often need a coronary artery bypass or/and aortic valve replacement before the age of 20. Mortality is extremely high and death often occurs before the third decade of life. Existing conventional cholesterol-lowering medication is unsuccessful in achieving normal target cholesterol values in this group of patients.  

“The only modality for treatment is plasmapheresis (similar to dialysis in patients with renal failure). Even with this type of therapy the results are relatively unsatisfactory because it is very expensive and the plasmapheresis has to be performed on a regular basis.  

“The drug Juxtapid, as currently evaluated, has led to a dramatic reduction in cholesterol values and normal values were achieved in several people. No existing drug is nearly as effective.  

“The drug represents a breakthrough in the treatment of familial homozygous hypercholesterolemia. The fact that it has been approved by the FDA, gives further impetus to the findings,” says Prof. Theron.  

In future further evaluation will be performed in other forms of hypocholesterolemia.  

According to Prof. Theron, the findings of the study, as well as the recent successful FDA evaluation, once again confirms the fact that the UFS’ Cardiology Contract Research Unit is doing outstanding work.  

Since its inception in 1992, the Unit has already been involved in more than 60 multi-centre, international phase 2 and 3 drug studies. Several of these studies, including the abovementioned study, really affected the way in which cardiology functions.  

The UFS’ Cardiology Contract Research Unit is being recognised nationally and internationally for its high quality of work and is constantly approached for their involvement in new studies.  

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