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African traditional medicine could be a solution for Africa and the world’s health emergencies

31 August 2022 | Story Prof Motlalepula Matsabisa | Photo Andrè Damons

Opinion article by Prof Motlalepula Matsabisa, Professor and Director of Pharmacology, Faculty of Health Sciences, University of the Free State.

As we celebrate African Traditional Medicine Day on 31 August to promote the important role of the continent’s rich biodiversity in improving well-being, one needs to acknowledge the role that COVID-19 played in shining a spotlight on African traditional medicines (ATMs). Responding to the pandemic, rapid vaccine research and development and the repurposing of drugs in the fight against COVID-19 happened on great scales. Traditional medicines also benefited from renewed interest as a possible solution for this deadly disease. This year the World Health Organisation (WHO) Regional Director has approved the theme for the celebration of the 20th anniversary of African Traditional Medicine Day as ‘Two Decades of African Traditional Medicine Day: Towards Achieving Universal Health Coverage’. Countries will be celebrating individually, while WHO will hold a virtual celebration on the day.

Even though ATMs, similarly to other traditional medicines such as those from China and India, have been used by African people long before the advent of “modern” medicine, and still continue to be used for the treatment of a range of diseases, most people still do not believe in its value as medicines for serious and chronic illnesses. This might be because of the lack of scientific research behind these remedies, and the dominance of the Western knowledge system and its wide acceptance by younger generations who value more Western values and lifestyles while being oblivious to ATMs. But in Africa, where about 80% of the population are said to rely on traditional medicine for their basic healthcare needs (according to the WHO), ATMs should be given a more prominent role. They should be more visible on shelves in big pharmacies, prescribed by healthcare practitioners beyond just traditional health practitioners (THPs), and should be more mainstreamed than what is currently the case.

UFS Department of Pharmacology made great strides researching ATMs

Over the past few years, the University of the Free State (UFS), through its Department of Pharmacology, has made great strides in researching the possibilities and potential of ATMs. My team and I, together with other role-players in the institution, are in the process of establishing one of the most advanced modern pharmacology GLP-accredited research and development laboratories in the country, and possibly in the region, after receiving a grant of R58 million from the government. The UFS is recognised as a national leader in pharmacology as well as research and development of indigenous knowledge systems (IKS) and traditional medicines. The UFS has developed and built infrastructure in this field of scientific research, and has the best modern equipment for the training, teaching, and development of prototypes and products for commercialisation based on IKS. Interdisciplinary and interfaculty research is undertaken in this study area, and we have an excellent track record of sound community engagement with relevant stakeholders.

The department has also been awarded an annual Technology and Innovation Agency Platform (TIA) grant of R17 million for the next five years. This research and teaching programme, known as African Medicines Innovations and Technologies Development (AMITD), will help to recruit and employ the best skills throughout the research, development, and herbal-medicine manufacturing value chains. We received a DSI high-end infrastructure (HEI) grant to build a laboratory, which will be a centre of excellence for the government, the WHO, and the African Union’s Commission for Social Development. The grant will also be used to build a herbal medicines production facility, as well as to pilot a health facility for traditional medicines. I am pleased that a multinational private pharmaceutical company has come forward and will be collaborating with us to realise these plans – joint manufacturing and business development, and joint engagement in the integrated health facility. We are now, together with the WHO and the aforementioned company, entering into a collaboration agreement to work together on key projects in traditional medicine manufacturing and training.

Traditional medicine therapies emerged as possible cures or remedies for COVID-19

As part of the COVID-19 response, traditional medicine therapies have emerged as possible cures or remedies for the deadly disease. The pandemic has certainly helped to improve the profile of ATMs. In Cameroon, for example, two complementary therapy products for COVID-19 have been approved by the government, while Madagascar’s herbal remedy, COVID-Organics Plus Curative, has been in phase II clinical trials. Encouraging preliminary results have been reported around this clinical trial. Similar trials on traditional medicine products for COVID-19 – conducted according to WHO protocols – are also underway in other African countries, including Democratic Republic of Congo, Nigeria, Uganda and South Africa, according to the World Health Organisation (WHO).

With regard to South Africa, my team and I and FARMOVS received approval from the South African Health Products Regulatory Authority (SAHPRA) to conduct the first multicentre controlled phase II clinical trial of a plant-based product, PHELA, on mild- to moderate-symptom COVID-19 patients.

The main purpose of the clinical trial is to confirm that the product can treat COVID-19 and be registered by the South African Health Products Regulatory Authority. We confirmed in vitro and in vivo that 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. This pivotal study is based on the modification of the WHO master protocol for clinical trials. The study is ongoing at three sites, and we are considering the addition of two more sites, to make a total of five clinical-trial sites. The development of PHELA has taken place under stringent scientific scrutiny in both preclinical and clinical research. The efficacy of PHELA as both an immune modulator and an anti-SARS-COV-2 treatment has been proven in in vitro and in vivo studies with reproducible results, conducted by three independent research institutions and a science council. 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 it has been scientifically tested and found effective as an immune modulator that benefits persons with a compromised immune system.

African Traditional Medicines Day: a reminder of the value and contribution of traditional medicines

The celebration of African Traditional Medicines Day annually on 31 August reminds all of us of the value and contribution of traditional medicines. This year’s theme on the role of ATMs in universal health coverage (UHC) is most befitting, as we know that medicines from natural products are affordable, accessible, have almost no side effects, and are proven enough because they have been advised for many generations, and they have been quite efficient in treating 90% of all currently known human diseases. The annual celebration, therefore, aims to gain more support for the continent to fast-track the research and development, as well as the local manufacturing, of well-researched ATM products, and for them to be made available through our national health systems. This also encourages the training of younger generations in this field of science and research.

Support for local manufacturing of ATMs will help bring traditional medicinal products into mainstream health systems and formal economies, creating jobs and wealth throughout all the ATM-manufacturing value chains – commercial cultivations, research and development, manufacturing, distribution, logistics, and marketing. This will help move the continent from dependency on aid from rich Western countries. Aid has not given Africans any independence, and has never been sustainable. It is, instead, enslaving the continent. If we want to be independent of big Western pharmaceutical companies and their expensive medicines, inequities and discrimination – as seen during the COVID-19 pandemic, African countries were left wanting when it came to access to personal protective equipment, diagnostics, therapeutics, and vaccines – Africa does not need aid. We need technical skills, technology development, and skill transfer. Aid makes African dependent, not independent. We need investment – financial, research and resources – into developing our own, locally and regionally sourced herbal-based medicine. Africa and her people need African solutions to its health problems –and who could be better suited to create them than the continent’s people through its indigenous knowledge systems.

Africa should be a leading force

In August health ministers from Africa met at a special event – the WHO Health Ministers Regional Committee for Africa, in Lomé, Togo. The theme of the meeting was ‘Building Back Better: Rethinking and rebuilding resilient health systems in Africa to achieve UHC and health security’. The WHO Africa Regional Office hoped to develop a collective roadmap for building resilient health systems through integrated efforts that coordinated actions across all clusters and teams in the WHO’s regional office and country offices, and with national, regional and global partners supporting African countries as they ramp up efforts to recover from the pandemic-induced disruption and build back better toward achieving UHC and being prepared for future health emergencies.

As Chairperson of the Regional Advisory Committee on Traditional Medicine for COVID-19 Response (REACT), I gave a presentation on fast-tracking research and development and local production of herbal medicines during the second session, with the theme ‘Lessons to guide strengthening of health product manufacturing in Africa’. I am of the view that COVID-19 helped to prepare the continent for the next major event, and Africa will be better suited to deal with it. We cannot, again, be caught off guard and found wanting, and be at the mercy of the West for donations. I presented ways to put in place systems for supporting local manufacturing of therapeutics, with participation through the African regional economic blocks.

News Archive

Inaugural lecture: Prof Robert Bragg, Dept. of Microbial, Biochemical and Food Biotechnology

2006-05-17

Attending the inaugural lecture were in front from the left Prof Robert Bragg (lecturer at the Department of Microbial, Biochemical and Food Biotechnology) and Frederick Fourie (Rector and Vice-Chancellor). At the back from the left were Prof James du Preez (Departmental Chairperson: Department of Microbial, Biochemical and Food Biotechnology) and Prof Herman van Schalkwyk (Dean: Faculty of Natural and Agricultural Sciences). Photo: Stephen Collett

A summary of an inaugural lecture delivered by Prof Robert Bragg at the University of the Free State:

CONTROL OF INFECTIOUS AVIAN DISEASES – LESSONS FOR MAN?

Prof Robert R Bragg
Department of Microbial, Biochemical and Food Biotechnology
University of the Free State

“Many of the lessons learnt in disease control in poultry will have application on human medicine,” said Prof Robert Bragg, lecturer at the University of the Free State’s (UFS) Department of Microbial, Biochemical and Food Biotechnology during his inaugural lecture.

Prof Bragg said the development of vaccines remains the main stay of disease control in humans as well as in avian species. Disease control can not rely on vaccination alone and other disease-control options must be examined.

“With the increasing problems of antibiotic resistance, the use of disinfection and bio security are becoming more important,” he said.

“Avian influenza (AI) is an example of a disease which can spread from birds to humans. Hopefully this virus will not develop human to human transmission,” said Prof Bragg.

According to Prof Bragg, South Africa is not on the migration route of water birds, which are the main transmitters of AI. “This makes South Africa one of the countries less likely to get the disease,” he said.

If the AI virus does develop human to human transmission, it could make the 1918 flu pandemic pale into insignificance. During the 1918 flu pandemic, the virus had a mortality rate of only 3%, yet more than 50 million people died.

Although the AI virus has not developed human-to-human transmission, all human cases have been related to direct contact with infected birds. The mortality rate in humans who have contracted this virus is 67%.

“Apart from the obvious fears for the human population, this virus is a very serious poultry pathogen and can cause 100% mortality in poultry populations. Poultry meat and egg production is the staple protein source in most countries around the world. The virus is currently devastating the poultry industry world-wide,” said Prof Bragg.

Prof Bragg’s research activities on avian diseases started off with the investigation of diseases in poultry. “The average life cycle of a broiler chicken is 42 days. After this short time, they are slaughtered. As a result of the short generation time in poultry, one can observe changes in microbial populations as a result of the use of vaccines, antibiotics and disinfectants,” said Prof Bragg.

“Much of my research effort has been directed towards the control of infectious coryza in layers, which is caused by the bacterium Avibacterium paragallinarum. This disease is a type of sinusitis in the layer chickens and can cause a drop in egg product of up to 40%,” said Prof Bragg.

The vaccines used around the world in an attempt to control this disease are all inactivated vaccines. One of the most important points is the selection of the correct strains of the bacterium to use in the vaccine.

Prof Bragg established that in South Africa, there are four different serovars of the bacterium and one of these, the serovar C-3 strain, was believed to be unique to Southern Africa. He also recently discovered this serovar for the first time in Israel, thus indicating that this serovar might have a wider distribution than originally believed.

Vaccines used in this country did not contain this serovar. Prof Bragg established that the long term use of vaccines not containing the local South African strain resulted in a shift in the population distribution of the pathogen.

Prof Bragg’s research activities also include disease control in parrots and pigeons. “One of the main research projects in my group is on the disease in parrots caused by the circovirus Beak and Feather Disease virus. This virus causes serious problems in the parrot breeding industry in this country. This virus is also threatening the highly endangered and endemic Cape Parrot,” said Prof Bragg.

Prof Bragg’s research group is currently working on the development of a DNA vaccine which will assist in the control of the disease, not only in the parrot breeding industry, but also to help the highly endangered Cape Parrot in its battle for survival.

“Not all of our research efforts are directed towards infectious coryza or the Beak and Feather Disease virus. One of my Masters students is currently investigating the cell receptors involved in the binding of Newcastle Disease virus to cancerous cells and normal cells of humans. This work will also eventually lead to a possible treatment of cancer in humans and will assist with the development of a recombinant vaccine for Newcastle disease virus,” said Prof Bragg.

We are also currently investigating an “unknown” virus which causes disease problems in poultry in the Western Cape,” said Prof Bragg.

“Although disinfection has been extensively used in the poultry industry, it has only been done at the pre-placement stage. In other words, disinfectants are used before the birds are placed into the house. Once the birds are placed, all use of disinfectants stops,” said Prof Bragg.

“Disinfection and bio security can be seen as the ‘Cinderella’ of disease control in poultry. This is also true for human medicine. One just has to look at the high numbers of people who die from hospital-acquired infections to realise that disinfection is not a concept which is really clear in human health care,” said Prof Bragg.

Much research has been done in the control of diseases through vaccination and through the use of antibiotics. “These pillars of disease control are, however, starting to crumble and more effort is needed on disinfection and bio security,” said Prof Bragg.

Prof Bragg has been working in close co-operation with a chemical manufacturing company in Stellenbosch to develop a unique disinfectant which his highly effective yet not toxic to the birds.

As a result of this unique product, he has developed the continual disinfection program for use in poultry. In this program the disinfectant is used throughout the production cycle of the birds. It is also used to ensure that there is excellent pre-placement disinfection.

“The program is extensively used for the control of infectious diseases in the parrot-breeding industry in South Africa and the product has been registered in 15 countries around the world with registration in the USA in the final process,” said Prof Bragg.

“Although the problem of plasmid mediated resistance to disinfectants is starting to rear its ugly head, this has allowed for the opening of a new research field which my group will hopefully exploit in the near future,” he said.

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