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14 November 2019 | Story Charlene Stanley | Photo Supplied
DIABETES read more
The modern clinical research facilities at FARMOVS where the two ground breaking diabetes studies will be conducted.

Diabetes is no longer seen simply as a disease, but as a worldwide epidemic, with alarming increases recorded in both developed and developing countries over the past few years.

About 3,5 million South Africans have diabetes, and many more are unaware that they have it. 

The FARMOVS clinical research facility on the Bloemfontein Campus of the University of the Free State is currently involved in two exciting research studies that could lead to the development of medication for diabetes sufferers burdened by some of its most common complications.

Diabetes in a nutshell

Diabetes is a group of diseases where the sugar (glucose) levels in the blood are too high. 

In diabetes mellitus (DM), the high blood-sugar levels are caused by the body not being able to control the blood-sugar levels properly, because of the body’s inability to produce or use insulin. Insulin is a hormone produced by the pancreas and lowers the blood-sugar levels by helping to move the sugar from the blood into the body cells where the sugar is used as a source of energy.

Type 1 DM is often diagnosed in children or teenagers and occurs when the pancreas does not produce any insulin. Type 2 DM occurs when the pancreas does not make enough insulin, or if the body can no longer use the insulin properly; this is often associated with poor lifestyle choices. Where this type of diabetes used to develop primarily in adults of 40 years and older, it is nowadays not uncommon for children to be diagnosed with it.


It is essential that people who are displaying one or more of the risk factors go for screening. This includes a search Physician at FARMOVS. “If DM is detected early enough, up to 90% of people don’t have to use medication but can address it through changes to their diet and exercise programmes.”

High blood-sugar levels essentially damage the blood vessels, which can lead to long-term implications for a person’s heart, kidneys, eyes, and blood circulation. 
The international studies that FARMOVS forms part of, aim to develop treatments for two of the most common secondary conditions that develop as a result of diabetes. 

Diabetic gastroparesis study

A sufferer’s intestines often don’t function properly due to the damage diabetes causes to the nerves which helps the stomach to empty properly; a condition called gastroparesis. Alleviating this condition, typically marked by abdominal pain, bloating, nausea, vomiting, and early satiety (feeling full after eating only a small amount of food), is the aim of one of the studies.

Diabetic impaired kidney function study

A second research study focuses on developing medication that will have a protective effect on a diabetic’s kidneys.  Although nothing can be done to reverse kidney damage, it is hoped that the treatment will slow down kidney degradation.

Focus on prevention

“Both of these studies are aimed at giving diabetics an increased quality of life, and by no means constitute a cure for their condition,” says Dr Van Jaarsveld.
 “The solution lies in combining the correct and committed use of medication with a decreased calorie intake and an increase in exercise – even if it’s just 30 minutes three times a week.”

Value of educating sufferers

A major benefit for participants in the FARMOVS diabetes research trials, is that they gain valuable insight in their own condition.
Diabetes has been called the ‘silent disease’, since sufferers initially have no symptoms.  For that reason, when the average patient is diagnosed with the disease, he/she already has had it for 10 years.   

For me, diabetes is such a sad disease – especially when you see patients with amputated body parts, knowing that it could have been prevented. It is really up to each individual to take responsibility for their own health,” Dr Van Jaarsveld concludes.

Diabetics who are interested in becoming part of the research studies can register online at www.farmovs.com, or contact FARMOVS at +27 51 410 3111.

News Archive

Sunflowers are satellite dishes for sunshine, or are they?
2016-07-20

Eighty-six percent of South Africa’s
sunflowers are produced in the
Free State and North West provinces.

Helen Mirren, the English actress, said “the sunflower is like a satellite dish for sunshine”. However, researchers at the University of the Free State (UFS) have found that too much of this sunshine could have a negative effect on the growth of sunflowers, which are a major source of oil in South Africa.

According to Dr Gert Ceronio from the Department of Soil, Crop, and Climate Sciences at the UFS, extremely high soil temperatures play a definite role in the sprouting of sunflower seedlings. Together with Lize Henning, professional officer in the department, and Dr André Nel from the Agricultural Research Council, he is doing research on biotic and abiotic factors that could have an impact on sunflowers.

Description: Sonneblom 2 Tags: Sonneblom 2

Various degrees of deformity (bad-left
to none-right) in seedlings of the same
cultivar at very high soil temperatures.
Photo: Dr Gert Ceronio

Impact of high temperatures on sunflower production

The Free State and North West provinces, which produce 86% of South Africa’s sunflowers, are afflicted especially by high summer temperatures that lead to extremely high soil temperatures.

Dr Ceronio says: “Although sunflower seeds are able to germinate at temperatures from as low as 4°C to as high as 41°C, soil temperatures of 35°C and higher could have a negative effect on the vegetative faculty of sunflower seedlings, and could have an adverse effect on the percentage of sunflowers that germinate. From the end of November until mid-January, this is a common phenomenon in the sandy soil of the Free State and North West provinces. Soil temperatures can easily exceed the critical temperature of 43°C, which can lead to poor germination and even the replanting of sunflowers.”

Since temperature have a huge impact not only on the germination of sunflower seeds, but also on the vegetative faculty and sprouting of sunflower seedlings, Dr Ceronio suggests that sunflowers should be planted in soil with soil temperatures of 22 to 30°C. Planting is usually done in October and early November. Unfortunately, this is not always possible, as soil moisture is not optimal for growth. Farmers are then compelled to plant sunflowers later.

Impact of herbicides on sunflower growth

“High soil temperatures, combined with the herbicide sensitivity of some cultivars, could lead to the poor development of seedlings," says Dr Ceronio.

The use of herbicides, such as ALACHLOR, for the control of weeds in sunflowers is common practice in sunflower production. It has already been determined that ALACHLOR could still have a damaging effect on the seedlings of some cultivars during germination and sprouting, even at recommended application dosages.

“The purpose of the continued research is to establish the sensitivity of sunflower cultivars to ALACHLOR when exposed to high soil temperatures,” says Dr Ceronio.

 

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