Attention all biting granite of science: the use of sweets and soft drinks containing sugar throughout the six weeks will make you stupid.
A new study by the University of California (UCLA) with mice showed that a diet high in fructose permanently slows down the brain impairs memory and learning. Confront this destructive process may polyunsaturated fatty acid omega-3. A peer-reviewed journal Journal of Physiology published the results of this study.
"Our studies have illustrated that your diet has an impact on the thought process," - said Fernando Gomez-Pinilla, professor of neurosurgery from UCLA. "Long term stay on a diet rich in fructose, affects of the brain to study and memorize the information. But inclusion in the diet of omega-3, to minimize harm."
Previous studies have shown how fructose harms the body, playing a role in the development of diseases such as diabetes, obesity and fatty liver. But only now received confirmation of the link between brain function and sweeteners.
A team of UCLA has focused on corn syrup, high fructose. This inexpensive liquid six times sweeter than cane sugar. It is added to many foods, including soft drinks, condiments and even baby food.
"We are not talking about the natural fruit sugar that is found in fruits, along with important antioxidants," - said Gomez-Pinilla. "Our concern is high fructose corn syrup, fructose, which is added to foods as a sweetener and preservative."
Scientists studied two groups of mice who consumed fructose in aqueous solution within six weeks. One group received an omega-3 fatty acids in the form of flaxseed oil in order to protect synapses - chemical connections between brain cells, which make possible the storage and learning.
During the five days prior to the start of the experiment, mice were fed standard chow and trained twice a day finding a way out of the maze. They were then transferred to the experimental diet. The team has tested the extent to which the mouse cope with navigating the maze. Scientists have placed in it the visual signs that helped mice to study and learn the correct way.
After six weeks, the researchers tested the ability of mice to remember the path and out of the maze. The results surprised the researchers.
"The second group of mice got out of the maze faster than mice that did not receive omega-3," - said Gomez-Pinilla. "Deprived of omega-3 animals were much slower, and their brains showed a decrease in the activity of synapses. Their brain cells had difficulties in communicating with each other, which impairs the ability to think clearly and remember the way that they learned six weeks earlier."
Deprived of omega-3 mice also showed signs of insulin resistance, hormone, which controls blood sugar and regulates the functioning of synapses in the brain. The denser the study of the brain tissue of mice showed that insulin has lost the lion’s share of his former influence on brain cells.
"Our results have shown that regular consumption of unsaturated fat protects the brain from the negative effects of fructose," - said Gomez-Pinilla. "You can draw an analogy with saving money in the bank. Necessary to establish a reserve from which your brain will be able to draw resources in the event of the need for additional energy, and protect against future disease."