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23 March 2022 | Story André Damons | Photo UFS Photo Archive
Prof Matsabisa
Prof Motlalepula Matsabisa is a professor and Director of Pharmacology at the University of the Free State (UFS)

The Department of Pharmacology at the University of the Free State (UFS) and FARMOVS have teamed up to conduct the first South African Health Products Regulatory Authority (SAHPRA)-approved multicentre controlled clinical trial of a plant-based product, PHELA, on mild to moderate COVID-19 patients.  

According to Prof Motlalepula Matsabisa, professor and Director of Pharmacology at UFS, it is anticipated that the trial will start in early April with each patient being on treatment for 28 days.

“The main purpose of the clinical trial is to confirm that the product can treat COVID-19 and be registered as a medication for this indication. We believe the medication works as an immune modulator to modulate the cytokine storm due to COVID-19 and also restores and normalises the patient’s immune system. We plan to have 250 patients who suffer from mild to moderate COVID-19,” explains Prof Matsabisa. 

This pivotal study, he says, is based on the modification of the World Health Organisation (WHO) Master protocol for clinical trials. The use of FARMOVS, a wholly owned clinical research company of the UFS Bloemfontein campus, for this clinical trial was to implement the collaborative initiatives between UFS and FARMOVS on clinical research, training, and other research projects.

What is PHELA?

Prof Matsabisa, deputy president of the South African Society for Basic and Clinical Pharmacology Society (SASBCP), says the development of PHELA has been under stringent scientific scrutiny for its safety in both preclinical and clinical research. The efficacy of PHELA as both an immune modulator and an anti-SARS-COV-2 has been proven in vitro and in vivo with reproducible results conducted by three independent research institutions and a science council.
The Department of Pharmacology and FARMOVS are collaborating on a number of studies to advance clinical research on African Traditional Medicines (ATM).

On the use of PHELA, Prof Matsabisa explains: “PHELA is a herbal product made of four medicinal plants. Traditionally PHELA has been claimed for use for a historical disease called muyaga, but recently has been scientifically tested and found effective as an immune modulator and benefiting persons with a compromised immune system.
“The PHELA plants are found in most provinces of South Africa and we have cultivated them to control their growth to produce quality raw materials.” 

“The SAHPRA-approved clinical trial will be conducted in the Eastern Cape, Northern Cape and Gauteng. The clinical trial will be conducted by a complement of medical staff and clinicians with vast experience of many active years of clinical trials.
 
“The study, we believe, is a benchmark for all future traditional medicines clinical trial protocols and studies. The studies are expected to start immediately after the product batch manufacturing of the study product, PHELA, is completed and this will be within a month’s time. “A lot of good scientific preclinical safety and efficacy research has gone into the development of the study product for it to reach this stage.

“The efficacy studies have shown convincingly that PHELA is an immune reconstitution product and does have an effect in killing the SARS-COV-2 virus and most of its variants.  PHELA efficacy, therefore, needs to be confirmed through randomised controlled multicentre clinical trials in COVID-19 patients,” Prof Matsabisa says.

Medicinal plants have previously been used to eradicate life-threatening viruses 

Although medicinal plants have been used to combat previous pandemics such as the Spanish flu, avian influenza and others, we still believe rigorous control and efficacy thereof is still to be supported by scientific research and development, says Prof Matsabisa. 

Prof Matsabisa, the current chairperson of the World Health Organisation’s (WHO) Regional Expert Advisory Committee on Traditional Medicines (REACT), adds: “We have better technologies and resources now, which is why we should take the next step in research to promote consumer safety and to offer them effective alternatives. We do the science to aid in building the herbal industry and develop sustained consumer confidence in traditional medicines. 

Africa should lead the way to a healthier future for all
“My vision is for Africa to share our valuable resources with the world by developing, and distributing world-class medicinal solutions. We should develop and strengthen the pharmaceutical local production of well-researched, quality, safe and efficacious African traditional medicines as commercial products. We are more than capable of doing so and now is the time to do it. Numerous discussions have taken place where other African countries will join South Africa in conducting multicentre studies in clinical trials for traditional medicines. 

“We need to develop or create, based on this current collaborative work with partners like FARMOVS, health centres with a strong focus on African medicines, health products and healing, but in a very strong collaborative initiative with other health systems”, concludes Prof Matsabisa.

Prof Matsabisa was recently awarded a Visiting Professorship at the Beijing University of Chinese Medicine (BUCM) in Beijing, China. He was also recommended to Naledi Pandor, Minister of International Relations and Cooperation, to be part of the India, Brazil and South Africa (IBSA) working group in traditional medicine through his participation in the national department of health technical committee on traditional medicines where he has been appointed by the Minister of Health, Dr Joe Phaahla.

News Archive

Sunflowers are satellite dishes for sunshine, or are they?
2016-07-20

Eighty-six percent of South Africa’s
sunflowers are produced in the
Free State and North West provinces.

Helen Mirren, the English actress, said “the sunflower is like a satellite dish for sunshine”. However, researchers at the University of the Free State (UFS) have found that too much of this sunshine could have a negative effect on the growth of sunflowers, which are a major source of oil in South Africa.

According to Dr Gert Ceronio from the Department of Soil, Crop, and Climate Sciences at the UFS, extremely high soil temperatures play a definite role in the sprouting of sunflower seedlings. Together with Lize Henning, professional officer in the department, and Dr André Nel from the Agricultural Research Council, he is doing research on biotic and abiotic factors that could have an impact on sunflowers.

Description: Sonneblom 2 Tags: Sonneblom 2

Various degrees of deformity (bad-left
to none-right) in seedlings of the same
cultivar at very high soil temperatures.
Photo: Dr Gert Ceronio

Impact of high temperatures on sunflower production

The Free State and North West provinces, which produce 86% of South Africa’s sunflowers, are afflicted especially by high summer temperatures that lead to extremely high soil temperatures.

Dr Ceronio says: “Although sunflower seeds are able to germinate at temperatures from as low as 4°C to as high as 41°C, soil temperatures of 35°C and higher could have a negative effect on the vegetative faculty of sunflower seedlings, and could have an adverse effect on the percentage of sunflowers that germinate. From the end of November until mid-January, this is a common phenomenon in the sandy soil of the Free State and North West provinces. Soil temperatures can easily exceed the critical temperature of 43°C, which can lead to poor germination and even the replanting of sunflowers.”

Since temperature have a huge impact not only on the germination of sunflower seeds, but also on the vegetative faculty and sprouting of sunflower seedlings, Dr Ceronio suggests that sunflowers should be planted in soil with soil temperatures of 22 to 30°C. Planting is usually done in October and early November. Unfortunately, this is not always possible, as soil moisture is not optimal for growth. Farmers are then compelled to plant sunflowers later.

Impact of herbicides on sunflower growth

“High soil temperatures, combined with the herbicide sensitivity of some cultivars, could lead to the poor development of seedlings," says Dr Ceronio.

The use of herbicides, such as ALACHLOR, for the control of weeds in sunflowers is common practice in sunflower production. It has already been determined that ALACHLOR could still have a damaging effect on the seedlings of some cultivars during germination and sprouting, even at recommended application dosages.

“The purpose of the continued research is to establish the sensitivity of sunflower cultivars to ALACHLOR when exposed to high soil temperatures,” says Dr Ceronio.

 

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