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08 February 2021 | Story André Damons | Photo Charl Devenish
Prof Mamello Sekhoacha, Associate Professor from the Department of Pharmacology in the Faculty of Health Sciences, was appointed by Dr Zweli Mkhize, Minister of Health, as the new chairperson of the National Health Research Ethics Council of South Africa (NHREC).

A researcher in the field of drug discovery and development at the University of the Free State (UFS) has been appointed by Dr Zweli Mkhize, Minister of Health, as the new chairperson of the National Health Research Ethics Council of South Africa (NHREC).

Prof Mamello Sekhoacha, Associate Professor from the Department of Pharmacology in the Faculty of Health Sciences, was appointed as a member of the NHREC council in 2013, and later became the chairperson of the NHREC’s Norms and Standards Committee responsible for developing and revising guidelines for health research. Prof Sekhoacha was appointed deputy chairperson of the council in 2018 and has played an integral part in setting ethical standards for conducting health research in the country.

 Responsibilities of the NHREC

The NHREC is the national statutory body responsible for the governance and advancement of health research ethics in South Africa. Some of the responsibilities of the council are to set ethical norms and standards for health research by developing and revising the guidelines pertaining to health research; to promote and monitor compliance with existing regulations by health research ethics committees; and to build capacity in research ethics committees through robust registration and audit processes.

These responsibilities of the NHREC rest on the need to ensure ethical integrity in research involving human participants and animal subjects, and that research is based on sound scientific and ethical principles.

“It is an honour for me to serve on the NHREC for the third term. The NHREC has achieved remarkable outputs over the past three years, and I believe, given the current composition of the council members, this momentum will not be lost. One of the goals of the NHREC is to further broaden the scope of the ethics in health research guidelines from ‘biomedical research’ to ‘health-related research’ to ensure that adequate guidance is provided for those in health-related disciplines, as a response to the changing environment of research involving humans and the broader meaning of health research.” 

“We need more comprehensive guidelines with nuanced commentaries to indicate how the ethical principles that emanated from biomedical research involving humans, could be effectively implemented in other disciplines of health-related research,” says Prof Sekhoacha. 

Global paradigm shift in role and integration of ethics in health research

Having been a council member since 2013, Prof Sekhoacha, whose training spans from pre-clinical laboratory experimentation, the use of animals in research, clinical trials, and working with indigenous communities, says there is a global paradigm shift in the role and integration of ethics in health research in almost all aspects of research, with an increased emphasis on the scientific and social value of research: the prospect of generating the knowledge in a manner that protects and promotes people's health. Considerations of the NHREC go beyond developing ethical guidelines or ensuring the efficient functioning of the ethics committees, to raising awareness among research institutions and researchers to continually promote ethically sound research conduct. 

The subject of ethics in health research is pivotal and reflective of the values of both the institution and the country at large. 

UFS uses Prof Sekhoacha’s expertise on ethics

Prof Sekhoacha is also a co-opted advisory member in the Senate Research Ethics Committee of the UFS and facilitates workshops and seminars on research ethics offered by the Postgraduate School.

Prof Corli Witthuhn, Vice-Rector: Research and Internationalisation, says it is a great honour for the UFS that Prof Sekhoacha has been elected chair of the NHREC.  “The NHREC governs the research ethics processes in South Africa, and it is strategically important for the UFS to now have one of our own academics play such a nationally important role.  We have been using Prof Sekhoacha’s expertise on issues of ethics and we are looking forward to working with her to continue to better our own ethics processes.”

News Archive

Fire as a management tool questionable in arid and semi-arid grassland areas
2015-03-24

Wild fire in the grassland
Photo: Supplied


The influence of fire on the ecosystem in the higher rainfall ‘‘sour’’ grassland areas of southern Africa has been well established. However, less information is available for arid and semi-arid ‘‘sweet’’ grassland areas, says Prof Hennie Snyman, Professor in the Department of Animal, Wildlife, and Grassland Sciences, about his research on the short-term impact of fire on the productivity of grasslands in semi-arid areas.

Sour and sweet grassland areas can be defined as receiving either higher or lower than approximately 600 mm of rainfall respectively. In quantifying the short-term impact of fire on the productivity of grasslands in semi-arid areas, a South African case study (experimental plot data) was investigated.

“Burned grassland can take at least two full growing seasons to recover in terms of above- and below-ground plant production and of water-use efficiency (WUE). The initial advantage in quality (crude protein) accompanying fire does not neutralise the reduction in half of the above-ground production and poor WUE occurring in the first season following the fire.

“The below-ground growth is more sensitive to burning than above-ground growth. Seasonal above-ground production loss to fire, which is a function of the amount and distribution of rainfall, can vary between 238 and 444 kg ha -1 for semi-arid grasslands. The importance of correct timing in the utilisation of burned semi-arid grassland, with respect to sustained high production, cannot be overemphasised,” said Prof Snyman.

In arid and semi-arid grassland areas, fire as a management tool is questionable if there is no specific purpose for it, as it can increase ecological and financial risk management in the short term.

Prof Snyman said: “More research is needed to quantify the impact of runaway fires on both productivity and soil properties, in terms of different seasonal climatic variations. The information to date may already serve as valuable guidelines regarding grassland productivity losses in semi-arid areas. These results can also provide a guideline in claims arising from unforeseen fires, in which thousands of rands can be involved, and which are often based on unscientific evidence.”

For more information or enquiries contact news@ufs.ac.za

 

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