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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

Stem cell research and human cloning: legal and ethical focal points
2004-07-29

   

(Summary of the inaugural lecture of Prof Hennie Oosthuizen, from the Department of Criminal and Medical Law at the Faculty of Law of the University of the Free State.)

 

In the light of stem cell research, research on embryo’s and human cloning it will be fatal for legal advisors and researchers in South Africa to ignore the benefits that new bio-medical development, through research, contain for this country.

Legal advisors across the world have various views on stem cell research and human cloning. In the USA there is no legislation that regulates stem cell research but a number of States adopted legislation that approves stem cell research. The British Parlement gave permission for research on embryonic stem cells, but determined that it must be monitored closely and the European Union is of the opinion that it will open a door for race purification and commercial exploitation of human beings.

In South Africa the Bill on National Health makes provision for therapeutical and non therapeutical research. It also makes provision for therapeutical embryonical stem cell research on fetuses, which is not older than 14 days, as well as for therapeutical cloning under certain circumstances subject to the approval of the Minister. The Bill prohibits reproductive cloning.

Research on human embrio’s is a very controversial issue, here and in the rest of the world.

Researchers believe that the use of stem cell therapy could help to side-step the rejection of newly transplanted organs and tissue and if a bank for stem cell could be built, the shortage of organs for transplants would become something of the past. Stem cells could also be used for healing of Alzheimer’s, Parkinson’s and spinal injuries.

Sources from which stem cells are obtained could also lead to further ethical issues. Stem cells are harvested from mature human cells and embryonic stem cells. Another source to be utilised is to take egg cells from the ovaries of aborted fetuses. This will be morally unacceptable for those against abortions. Linking a financial incentive to that could become more of a controversial issue because the woman’s decision to abort could be influenced. The ideal would be to rather use human fetus tissue from spontaneous abortions or extra-uterine pregnancies than induced abortions.

The potential to obtain stem cells from the blood of the umbilical cord, bone-marrow and fetus tissue and for these cells to arrange themselves is known for quite some time. Blood from the umbilical cord contains many stem cells, which is the origin of the body’s immune and blood system. It is beneficial to bank the blood of a newborn baby’s umbilical cord. Through stem cell transplants the baby or another family member’s life could be saved from future illnesses such as anemia, leukemia and metabolic storing disabilities as well as certain generic immuno disabilities.

The possibility to withdraw stem cells from human embrio’s and to grow them is more useable because it has more treatment possibilities.

With the birth of Dolly the sheep, communities strongly expressed their concern about the possibility that a new cloning technique such as the replacement of the core of a cell will be used in human reproduction. Embryonic splitting and core replacement are two well known techniques that are associated with the cloning process.

I differentiate between reproductive cloning – to create a cloned human embryo with the aim to bring about a pregnancy of a child that is identical to another individual – and therapeutically cloning – to create a cloned human embryo for research purposes and for healing human illnesses.

Worldwide people are debating whether to proceed with therapeutical cloning. There are people for and against it. The biggest ethical objection against therapeutical cloning is the termination of the development of a potential human being.

Children born from cloning will differ from each other. Factors such as the uterus environment and the environment in which the child is growing up will play a role. Cloning create unique children that will grow up to be unique individuals, just like me and you that will develop into a person, just like you and me. If we understand this scientific fact, most arguments against human cloning will disappear.

Infertility can be treated through in vitro conception. This process does not work for everyone. For some cloning is a revolutionary treatment method because it is the only method that does not require patients to produce sperm and egg cells. The same arguments that were used against in vitro conception in the past are now being used against cloning. It is years later and in vitro cloning is generally applied and accepted by society. I am of the opinion that the same will happen with regard to human cloning.

There is an argument that cloning must be prohibited because it is unsafe. Distorted ideas in this regard were proven wrong. Are these distorted ideas justified to question the safety of cloning and the cloning process you may ask. The answer, according to me, is a definite no. Human cloning does have many advantages. That includes assistance with infertility, prevention of Down Syndrome and recovery from leukemia.

 

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