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18 April 2024 | Story Andre Damons | Photo Charl Devenish
Dr Osayande Evbuomwan
Dr Osayande Evbuomwan, Senior Lecturer and Medical Specialist in the Department of Nuclear Medicine at the University of the Free State (UFS), received the first clinical PhD in nuclear medicine completed at the UFS at the April graduation ceremonies.

Dr Osayande Evbuomwan, Senior Lecturer and Medical Specialist in the Department of Nuclear Medicine, Faculty of Health Sciences, at the University of the Free State (UFS), graduated with the first clinical PhD in nuclear medicine completed at the UFS.

He graduated on Thursday (18 April 2024) at the university’s autumn graduation ceremonies when the Faculty of Health Sciences conferred degrees on its graduation class of 2024.

Dr Evbuomwan, the man behind his department using Lutetium 177 PSMA (Lu-177 PSMA) therapy and now Actinium 225 PSMA therapy to treatment metastatic castrate resistant prostate cancer (MCRPC) – an advanced stage prostate cancer, said his PhD is about using a special radiopharmaceutical called Technetium 99m ECDG to detect active disease in the joints of patients with rheumatoid arthritis (RA).

More opportunities for similar degrees

This research has won him the Society of Nuclear Medicine and Molecular Imaging (SNMMI) International Best Abstract Award for South Africa during last year’s SNMMI 2023 Annual Meeting in the US.

“I am very grateful, and at the same time, proud about this achievement (his PhD). This qualification will definitely give more opportunities for further similar degrees at the department. So yes, I feel very happy and fulfilled.

“Rheumatoid arthritis is a debilitating disease with associated morbidity that can lead to serious joint deformity and destruction. The need for an investigation with a very high diagnostic accuracy in detecting active disease is needed, especially in the detection of subclinical disease. Few prior studies in the literature had shown promising results with Tc 99m ECDG imaging in this regard. So, we decided to conduct a proper prospective study to test this hypothesis,” says Dr Evbuomwan.

This research, he explains, was also aimed at finding out if the new nuclear medicine radiopharmaceutical for the identification of active disease in patients with rheumatoid arthritis can also offer prognostic information. This aspect of the study concluded that this particular radiopharmaceutical (Tc – 99m ECDG) is highly sensitive in identifying synovitis (inflammation of the membrane that protects joints) and is capable of offering prognostic information in patients with rheumatoid arthritis.

This was the first prospective study to assess the prognostic value of this radiopharmaceutical in patients with rheumatoid arthritis, Dr Evbuomwan says.

Researching theranostics in the future

According to him, he had a smooth journey to completing his PhD – something he contributes to support from the fantastic team of three supervisors, the assistant who prepared the radiopharmaceutical, the rheumatology department, the radiographers and nurses at the Department of Nuclear Medicine, and most importantly, his wife and two daughters.

His passion for research, growth and the practice of nuclear medicine were his major motivators on this journey.

Dr Evbuomwan is currently looking at the possibility of starting research on theranostics. The only stumbling block for now, he says, is that the department still does not have a PET/CT camera, as this is very vital in today’s nuclear medicine practice. However, together with the Free State Department of Health, they are working hard to secure one.

“I now want to focus on nuclear medicine therapy and its promotion. This includes both imaging and treatment (theranostics) of certain cancers, most especially prostate cancer, neuroendocrine neoplasms, thyroid cancers and the neuroectodermal tumours. I also want to focus on being involved with the training of more registrars at the department of nuclear medicine and increasing the awareness of nuclear medicine amongst colleagues in the Free State,” says Dr Evbuomwan about his future plans. 

News Archive

Plant-strengthening agent a result of joint effort between UFS and German company
2015-07-27

Research over the past few years has showed that the agent applied mostly as a foliar spray subsequently leads to better seedlings as well as growth and yield enhancement of various crops.

The application of a plant-strengthening agent in the agricultural industry has, until recently, been largely ignored, says Dr Elmarie van der Watt of the Department of Soil, Crop, and Climate Sciences at the University of the Free State (UFS). The agent was co-developed by researchers at the UFS and a German company.

The product is moving into new markets, such as China, Vietnam, the USA, and Australia.

ComCat® was the result of extensive research by the German company Agraforum AG. Commercialisation was limited initially to Europe, while research was expanded to other parts of the world, with the University of the Free State as the main research centre.  ComCat® is a unique, non-toxic plant strengthening agent derived from wild plants. It enhances plant growth and yield, as well as resistance against abiotic and biotic stress factors.

Dr Van der Watt says that, in nature, plants communicate and interact by means of allelochemicals (the inherent silent tool of self-protection among plants) and other phytochemicals (chemical compounds that occur naturally in plants), as part of their resistance mechanisms towards biotic and abiotic stress conditions.

Most wild-plant varieties are usually well-adapted to resist these stress factors. However, monoculture crops have lost this ability to a large extent. “Active compounds contained in extracts from wild plants applied to monoculture crops can potentially supply the signal for the latter to activate their dormant resistance mechanisms.” 

Research over the past few years has showed that the agent applied mostly as a foliar spray subsequently leads to better seedlings as well as growth and yield enhancement of various crops.  A major advantage is that, despite its enhancing effects on root development and yield, it does not induce unwanted early vegetative growth that could jeopardise the final yield, as happened in the past for nitrogen application at an early growth stage. 

Dr Van der Watt says, “Physiological data on the effect of the natural bio-stimulant product on photosynthesis, respiration, and resistance towards biotic stress conditions indicate that it can be regarded as a useful tool to manipulate agricultural crops. Research also showed that the field of application for this natural product is never-ending, and new applications are being investigated every day.”

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