Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
28 January 2020 | Story Rulanzen Martin | Photo Pexels
Conference
At the meet-and-greet last night, were from left Prof Ruad Ganzevoort, Diversity Officer and Dean of Theology and Religion at VUA, Prof Francis Petersen and Dr Gene Block, Chancellor of UCLA.

The Unit for Institutional Change and Social Justice at the University of the Free State (UFS) is hosting a colloquium on Fragility and Resilience: Facets, Features and Transformation in Higher Education which started on 29 January, with the official progamme concluding on 30 January 2020.

The colloquium is a annual collaborative partnership between the UFS, University of California, Los Angeles (UCLA), and the Vrije Universiteit Amsterdam (VUA).

Apart from the overarching themes the colloquium also placed some focus on mental health, within this context as all three regions are witnessing a spike in mental health issues among students and staff as well as a deficit in terms of being able to sufficiently address the crisis.

“All three universities are committed to discussing global developments in diversity and transformation in higher education to discussing global developments in diversity and transformation as it may constitute itself in higher education circles around the globe,” says Dr Dionne van Reenen, convener of the 2020 colloquium and research fellow at the unit.  

The idea is to discuss what has and has not worked and, hopefully, access best practices in a variety of contexts. The partnership between the three universities spans over six years starting in 2014 when the UFS first hosted the research colloquium. It is the third time the UFS has hosted the colloquium.
 
Prof Francis Petersen, Rector and Vice-Chancellor of the UFS, along with other members of the UFS Rectorate, attended a meet-and-greet on Monday 28 January 2020, and was joined by Dr Gene Block, Chancellor of UCLA, Vice Provosts Cindy Fan, Patricia Turner, Charles Alexander, Professors Abel Valenzuela, John Hamilton and Dr Shalom Staub, director of Community Learning, as well as Prof Ruard Ganzevoort, Chief Diversity Officer and Dean of Theology and Religion at VUA 

News Archive

Dr Charlotte Boucher and Lindi Heyns examine possible anti-microbial activity in the skin of Western olive toad species
2014-12-22

 

Researchers Lindi Heyns and Dr Charlotte Boucher are working together on an interdisciplinary project between the Departments of Zoology and Entomology and Veterinary Biotechnology at the University of the Free State (UFS). The focus of their research is on the preliminary biochemical description of skin secretions in some South African toads.

The project forms part of an Honours study executed by Dwayne Pike under Heyns’ supervision. He is co-supervised by Dr Boucher who is assisting with the biochemical and microbiological assays.

Dr Boucher said, “Amphibians are characterised by the presence of cutaneous glands spread over the skin. There are two types of glands, namely mucous and granular (poison), located on the inner surface of the epidermis. Mucous glands are widely dispersed over the skin, while granular glands can be grouped and enlarged in specific regions. Mucous glands are generally associated with maintenance of humidity and cutaneous respiration, whereas granular glands function in chemical defence against predators and/or microbial infection. Studies indicate that the compounds produced by the granular glands belong to numerous chemical classes with diverse pharmacological activities.”

The products secreted by granular glands are rich in low molecular weight constituents of varied molecular types, including proteins, peptides and toxins. These secretions make the toad foul-tasting to predators and even toxic to other frog species. In addition, amphibians offer an attractive source of novel antimicrobials. Studies indicate that as a response to inhabiting microorganism-rich environments they synthesise and secrete a diverse array of antimicrobial peptides (AMPs) as an innate form of defence. Extensive research by various other research groups has been carried out on antimicrobial peptides of the genus Rana; however, hardly any studies have investigated the antimicrobial activity of African frog species.

The focus of this preliminary project is to determine the protein composition of the glandular secretions of the Western olive toad (Amietophrynus poweri), using biochemical tests, such as SDS-PAGE also known as protein gel electrophoresis combined with mass-spectrometry used to identify unknown peptides and proteins. This will give us an overview of the composition of the glandular secretions. Furthermore, we are also looking at microbiological tests, which include assays that test for possible anti-microbial activity against various bacterial and fungal species.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept