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20 September 2021 | Story Nombulelo Shange | Photo André Damons
Nombulelo Shange, Lecturer in the Department of Sociology, asks what it would look like if we looked inward and invested in our own indigenous methods of nurturing and encouraging this and similar practices? Could other important scientific innovations emerge from it?

Opinion article by Nombulelo Shange, Lecturer in the Department of Sociology, University of the Free State.
Last year I wrote an opinion piece on the importance of indigenous knowledge, especially in healing practices. The piece detailed the origins of modern vaccines as an old, culturally appropriated African practice that was instrumental in fighting smallpox in 1700s Europe. That piece is perhaps even more significant this year, as many Africans are afraid of the COVID-19 vaccine. The hesitancy comes from a distrust of Western medicine, which has been responsible for many atrocities all over the world, as well as the South African biological warfare created by the apartheid government and led by Wouter Basson, who was dubbed ‘Dr Death’. 

African knowledge systems have come a long way – from being overlooked as valuable sciences or being misrepresented by Western scholars, who for a long time saw themselves as the only suitable custodians of our experiences, ideals, history, culture, and knowledge. Today, although a lot more needs to be done, we are seeing a rise in African intellectuals, practices, and solutions. In the academy, we see this in the calls for decolonised education, which has emphasised the importance of Southern African scholarly contributions locally and internationally. 

In our day-to-day lives, we also see this shift towards reclaiming African solutions to deal with modern-day challenges. Practices such as visiting sangomas/traditional healers and the general practising of African traditional religion were seen as taboo or often labelled as hedonism. Many were forced to acknowledge their ancestors or perform sacrifices in private. But today, many are openly practising their cultural rituals when they want to give thanks for good fortune, when they are struggling to find employment, and for both physical and emotional healing that individuals or the collective needs. Although not ‘scientifically verified’, the African herb called umhlonyane helped many during the COVID-19 pandemic, especially during the major waves that overwhelmed and threatened to cripple our healthcare system. Many have turned to this herb as a solution to help them fight COVID-19. Umhlonyane is commonly used by sangomas for a variety of reasons; to boost the immune system, for patients with illnesses that attack the respiratory system, and many other things. This kind of revitalisation and mainstreaming of indigenous knowledge systems and epistemological pedagogies can undo challenges such as vaccine hesitancy and general distrust of biomedicine, while elevating African knowledge.

The missing link

Despite these and many other positive strides that place African knowledge at the forefront, something is still missing, because we are still far from where we need to be as a continent. There are many things we can draw from to make sense of why the progress is slow. We could draw from the usual arguments around the missing, undervalued African Renaissance. We could also argue that while African ideals are gaining prominence, they are often only invoked as an ‘alternative’ or afterthought. Arguably, even with umhlonyane, it was only from desperation that people turned to it. All of these are valid, but I also what to argue that we are limited by a kind of epistemological slavery, where we use conflicting Western systems of knowledge production in producing African knowledge. We rely on Western methodologies for knowledge production, Western schooling systems for how we engage with and use the knowledge, and even Western systems for how we store and preserve the knowledge. 

Trapping African knowledge in Western epistemology

The April Cape Town fire, which has spread to the University of Cape Town and destroyed the African Studies library, is one illustration of the danger of trapping African knowledge in Western epistemological systems. Much of what was lost in the fire is work that will most likely be lost forever; it is possible that no other records of it exist elsewhere. The issue is that in Africa, knowledge is communally produced, shared, and owned. Western systems encourage the containment and individual ownership of knowledge. Traditionally, African knowledge is often shared in the sense that the process of producing and sharing this knowledge is done as a collective and is built into the day-to-day practices rather than being crafted as a separate experience in the way that mainstream Western education and research is done. 

Reimagining African epistemology 

There is an important method of passing down useful skills that you still find in African households even today. As kids, we often hated it, because it took us away from our games, watching TV, or general leisure time. As Zulus, we refer to it as ukuthunywa/thuma – the English translation of ‘running errands’ does not adequately represent what it means, but it will do. I want to argue that this practice has traditionally been an important epistemological tool for producing and sharing knowledge. As a child growing up in a family of farmers, for example, you are taught how to be a farmer through these ‘errands’. You might start off with small requests, such as having to watch while the grown-ups or older children perform certain tasks; as time goes on, you are expected to take on more and more responsibilities in the family trade or even in helping neighbours and other community members. Even when it came to storing and preserving knowledge, it was done in such a way that it was still easily accessible. It would be stored as rock art, songs and performances, everyday crafts, and practices. And contrary to Western beliefs that Africans never wrote or documented, for cultures such as the Egyptians and Ashanti, knowledge was even stored as written inscriptions. 

When we move away from ukuthunywa towards the more Western mainstream, some challenges arise. Students are almost exclusively taught in theoretical ways, separate from their everyday experiences, which makes it difficult to understand and value the knowledge and its place in society. Knowledge goes from being communally owned to being owned by an individual researcher or institution, which limits who has access to the information, who has the right to use it, and even limitations on how it can be used. At times, even the communities from which the knowledge originally came, are limited by copyright laws. I want to argue that if we had created African knowledge using African practices or possible methodologies such as ukuthnywa, the loss of the UCT African Studies section wouldn’t have felt so bad, because the knowledge would be actively existing in society and the ability to recreate and redocument it would feel within reach. 

The freeing of our indigenous knowledge systems requires that we shift from looking outwards for solutions. For example, instead of looking towards dangerous fossil fuel and expensive Western renewable energy solutions to address our ongoing energy crisis, why not look inward and invest in our own indigenous methods of creating cheaper, sustainable biogas using animal and food waste. Imagine if we did it in ways that empowers black rural women who are the custodians of this knowledge, so that while dealing with the energy issues, we simultaneously address poverty and environmental degradation. What would it look like if we continued to nurture and encourage this and similar practices? Could other important scientific innovations emerge from it? Could it grow to the level of informing global discourse? Could we finally be uhuru?

News Archive

Research contributes to improving quality of life for cancer patients
2016-11-21

Description: Inorganic Chemistry supervisors  Tags: Inorganic Chemistry supervisors

Inorganic Chemistry supervisors in the Radiopharmacy
Laboratory during the preparation of a typical complex
mixture to see how fast it reacts. Here are, from the left,
front: Dr Marietjie Schutte-Smith, Dr Alice Brink
(both scholars from the UFS Prestige
Scholar Programme), and Dr Truidie Venter (all three
are Thuthuka-funded researchers).
Back: Prof André Roodt and Dr Johan Venter.
Photo: Supplied

Imagine that you have been diagnosed with bone cancer and only have six months to live. You are in a wheelchair because the pain in your legs is so immense that you can’t walk anymore – similar to a mechanism eating your bones from the inside.

You are lucky though, since you could be injected with a drug to control the pain so effective that you will be able to get out of the wheelchair within a day-and-a-half and be able to walk again. Real-life incidents like these provide intense job satisfaction to Prof André Roodt, Head of Inorganic Chemistry at the University of the Free State (UFS). The research, which is conducted by the Inorganic Group at the UFS, contributes greatly to the availability of pain therapy that does not involve drugs, but improves the quality of life for cancer patients.

The research conducted by the Inorganic Group under the leadership of Prof Roodt, plays a major role in the clever design of model medicines to better detect and treat cancer.

The Department of Chemistry is one of approximately 10 institutions worldwide that conducts research on chemical mechanisms to identify and control cancer. “The fact that we are able to cooperate with the Departments of Nuclear Medicine and Medical Physics at the UFS, the Animal Research Centre, and other collaborators in South Africa and abroad, but especially the methodology we utilise to conduct research (studying the chemical manner in which drugs are absorbed in cancer as well as the time involved), enhances the possibility of making a contribution to cancer research,” says Prof Roodt.

Technique to detect cancer spots on bone
According to the professor, there are various ways of detecting cancer in the body. Cancer can, inter alia, be identified by analysing blood, X-rays (external) or through an internal technique where the patient is injected with a radioactive isotope.

Prof Roodt explains: “The doctor suspects that the patient has bone cancer and injects the person with a drug consisting of an isotope (only emits X-rays and does no damage to tissue) that is connected to a phosphonate (similar to those used for osteoporosis). Once the drug is injected, the isotope (Technetium-99m) moves to the spot on the bone where the cancer is located. The gamma rays in the isotope illuminate the area and the doctor can see exactly where treatment should be applied. The Technetium-99m has the same intensity gamma rays as normal X-rays and therefore operates the same as an internal X-ray supply.” With this technique, the doctor can see where the cancer spots are within a few hours.

The same technique can be used to identify inactive parts of the brain in Alzheimer patients, as well as areas of the heart where there is no blood supply or where the heart muscle is dead.

Therapeutic irradiation of cancer
For the treatment of pain connected with cancer, the isotope Rhenium-186 is injected. Similar to the manner in which the Technetium-99m phosphonate compound is ingested into the body, the Rhenium-186 phosphonate travels to the cancer spots. Patients thus receive therapeutic irradiation – a technique known as palliative therapy, which is excellent for treating pain. A dosage of this therapy usually lasts for about two months.

The therapy is, however, patient specific. The dosages should correspond with the occurrence and size of cancer spots in the patient’s body. First, the location of the cancer will be determined by means of a technetium scan. After that, the size of the area where the cancer occurs has to be determined. The dosage for addressing total pain distribution will be calculated according to these results.

Technique to detect cancer spots on soft tissue
Another technique to detect cancer as spots on bone or in soft tissue and organs throughout the body is by utilising a different type of irradiation, a so-called PET isotope. The Fluor-18 isotope is currently used widely, and in Pretoria a machine called a cyclotron was produced by Dr Gerdus Kemp, who is a former PhD graduate from the Inorganic Research Group. The F-18 is then hidden within a glucose molecule and a patient will be injected with the drug after being tranquillised and after the metabolism has been lowered considerably. The glucose, which is the ‘food' that cancer needs to grow, will then travel directly to the cancer area and the specific area where the cancer is located will thus be traced and ‘illuminated’ by the Fluor-18, which emits its own 'X-rays'.

In the late 80s, Prof Roodt did his own postdoctoral study on this research in the US. He started collaborating with the Department of Nuclear Medicine at the UFS in the early 90s, when he initiated testing for this research.

Through their research of more than 15 years, the Inorganic Group in the Department of Chemistry has made a major contribution to cancer research. Research on mechanisms for the detection of cancer, by designing new clever chemical agents, and the chemical ways in which these agents are taken up in the body, especially contributes to the development in terms of cancer therapy and imaging, and has been used by a number of hospitals in South Africa.

The future holds great promise
Prof Roodt and his team are already working on a bilateral study between the UFS and Kenya. It involves the linking of radio isotopes, as mentioned above, to known natural products (such as rooibos tea), which possess anti-cancer qualities.

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