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28 April 2020 | Story Andre Damons | Photo Supplied
During a recent training session at the ASC. From the left, front: Marisa Viljoen and Noleen Seris; back: Prof Lauren Franz, Dr Nokhutula Shabalala, and Dr David Griessel (Unit Director).

Greta Thunberg, the 17-year-old climate and environmental activist who identifies as autistic, calls her autism a superpower. And it might just be this superpower that saves the world. 

Celebrating the strengths of autism
With April being Autism Month, it is a good time to celebrate the strengths of autism, says Dr David Griessel, Director of the University of the Free State Autism Support Centre (ASC), and a registered developmental paediatrician in the UFS Department of Paediatrics and Child Health. This includes a no-nonsense, direct thinking, and ‘outside the box’ way of looking at life, which is not mired in wishful thinking and false hope.

The Autism Support Centre was initiated by Dr Griessel, who has a special interest in neonatal intensive care, perinatal care, neuro-developmental evaluation in high-risk babies, neuro-developmental behavioural problems and learning difficulties, autism spectrum disorders, and the ethics of neuro-disability. The centre is under the auspices of the ‘Make the first 1 000 days count’ project and is located on the UFS Bloemfontein Campus.

According to Dr Griessel, the current pandemic is asking questions of us as society. “Questions about what is really important to us as humans. Whether we can really keep on expanding and consuming as if tomorrow does not exist. The inconvenient fact is that our encroachment on the habitat of wild animals bring us in contact with wild animals, and although bats are very resistant to viruses, we are not,” says Dr Griessel.  

Dr Griessel says Greta does not care about social codes, and directly asks of us: “How dare you steal my dreams and my childhood with your empty words; our homes are on fire.”

Children with autism need significant support 
“If we, as so-called neuro-typical parents, caregivers, and society can accept and support them, they add to the richness and complexity of life. The first person described in the medical literature, Donald T, had a full and eventful life, but financial support and a small community who had his back, were real enablers!”

“In this time of lockdown, my thoughts go out to parents and the challenges they may face at home. There are wonderful resources available from Autism SA, which may help them navigate these uncertain times. When we listen to Greta, a thought springs up – maybe autism will save the world.” 

A first in Africa
The Early Start Denver Model (ESDM), a first in Africa, was recently presented at the ASC and is now used to support therapists, caregivers, and patients with autism and related disorders.

This model is one of the so-called naturalistic developmental behavioural interventions, which attempts to change the core features of autism. They all share the idea that normal developmental forces should drive the process of interaction between caregiver and child; this has been  to be effective in different controlled trials.

Three registered ESDM therapists, together with Prof Lauren Franz from Duke University in North Carolina as mentor, visited Bloemfontein at the end of 2019 to become accredited trainers. Colleagues from Tanzania as well as attendees from all over South Africa have visited the centre before.

The unit is also being used by two local therapists, Elize van Rensburg and Angela Correia, to achieve reliability in this therapy. Furthermore, the unit is used as a therapy centre and for ADOS (Autism Diagnostic Observation Schedule) evaluations – the gold standard for diagnosis.

 

An inside view of the Autism Support Centre on the Bloemfontein Campus of the University of the Free State (UFS).

Supporting families as caregiversAutism South Africa has adapted a guide from the Frank Porter Graham Child Development Institute at the University of North Carolina on the support of individuals with autism through uncertain times.

Individuals with autism may need additional support to process the news and adapt to the many changes.  This population may face additional challenges related to comprehension, communication, difficulty understanding abstract language, an insistence on sameness, and a greater likelihood of anxiety and depression – all of which may be exacerbated during this stressful period. 

The following seven support strategies are designed to meet the unique needs of individuals with autism during this period of uncertainty.  

• Supporting understanding
• Offering opportunities for expression
• Prioritising coping and calming skills
• Maintaining routines
• Building new routines
• Fostering connections (from a distance)
• Being aware of changing behaviours

News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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