Tag Archives: Parkinson’s disease

Berries vs. the Brain

Why do many of us wait for the summer desperately?

Strawberries slow down the progression of age-related diseases! Photo by: Bahman Farzad

There might be different reasons as to why people look forward to summer such as: taking a stroll in park, going to the beach, and enjoying the sun. Although, it’s a long wait for summer here in Canada, we would all agree that the biggest payoff for the long haul is the fresh berries that we devour during the summer.

However, most of us might not be aware of the new research which shows that eating berries can be beneficial to the brain. It can slow or prevent the progression of neurodegenerative diseases such as Alzheimer’s and Parkinson’s disease.

Scientists in a new article in the, ACS’ Journal of Agricultural and Food Chemistry, report that eating blueberries, blackberries, strawberries and other types of berries has many beneficial effects on the brain and it may help prevent the on-set of age-related diseases. To further analyze the effect of berries on the brain Dr. Shukitt-Hale and Marshall G. looked at cellular animal and human studies. First of all, this review explained that berries benefit people because they produce high levels of antioxidants, which are compounds that help the cell fight off free radicals that cause damage to the cell. Second of all, berry fruits cause a change in the communication between neurons. Furthermore, these communication changes halt the inflammation of the brain which prevents neuronal damage and prevention of neuronal damage improves motor control and cognition.

Although, mechanisms which explain the behavioural deficits during aging are not known, it is understood that oxidative stress and inflammation are seen as the contributing factors of neurodegenerative diseases. Oxidative stress may contribute to neurodegenerative diseases because the brain is vulnerable to the deleterious effects of free radicals, so antioxidants need to be taken to reduce the effects of oxidative stress on the brain.

“The good news is that natural compounds called polyphenolics found in fruits, vegetables and nuts have an antioxidant and anti-inflammatory effect that may protect against age-associated decline,” said Poulose, who is with the U. S. Department of Agriculture-Agricultural Research Service (USDA-ARS) Human Nutrition Research Center on Aging in Boston.

Recent research shows that rats that were fed a two percent diet high in strawberries and blueberry for two months showed less age-related deficits in the nerve function, learning and remembering.

Raspberries! Photo by: Alex

Moreover, Poulose determined that nerve function reduces with age because of microglia, cells that remove and recycle any biochemical debris that would interfere with the brain’s function. During aging microglia do not do their job properly leading to the build up of debris. Poulose explains that berries contain polyphenolics which restore the normal housekeeping function of microglia which slows down or prevents the progression of neurodegenerative diseases.

After knowing the benefits of berries we can all look forward to summer for the same reason!!

(Video created by: chappellwellness)

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Uptake of Intense Amounts of Calories Vs. Uptake of No Calories!

During the exam season, most of us pack on the fat!

Uptake of Intense amounts of calories. Photo by: Andrew Shieh

It is during the summer months that we participate in a strict diet to lessen the insulation around ourselves. Our loved ones try to prevent us from starving ourselves because extreme dieting is not a permanent cure to losing weight and can cause harm to our body.

However, this may not be true. Many of us might be unaware of the new study, Fasting can help protect against brain diseases, that shows fasting for regular periods of time can counteract the impacts of diseases, such as Alzheimer’s and Parkinson’s. Furthermore, the researchers at the National Institute on Aging in Baltimore explain that stopping all food intake can lessen the effects of such degenerative diseases.

Professor Mark Mattson, head of the Institute’s laboratory of neurosciences, explained that rats who had restricted food intake had an increase in their life span by about 40 percent, he believes that this would also be true for humans. Furthermore, Mattson along with his colleagues, takes this study further and explains that cutting food consumption, to about 500 calories per day for twice a week, can not only cure ill-health but can also prevent early death. Mattson also argues that fasting delays other conditions that might be affecting the brain, such as strokes.

Mattson suggests that decreasing your food intake is not the greatest method which would protect from degenerative diseases, but strong bursts of fasting and eating heavily are needed!

500 calories just include tea and few vegetables Photo by: Rudolf Vlcek

“Reducing your calorie intake could help your brain, but doing so by cutting your intake of food is not likely to be the best method of triggering this protection. It is likely to be better to go on intermittent bouts of fasting, in which you eat hardly anything at all, and then have periods when you eat as much as you want,” said Mattson.

Mattson and his colleagues have figured out a mechanism which explains that reducing energy intakes can increase the growth of the neurons. The reduction of calorie intake leads to a boost in amounts of cellular messaging chemicals and these specific chemicals allow the growth of neurons. The growth of these neurons counteract the effect of Alzheimer and Parkinson’s disease, according to Professor Mattson.

Moreover, Mattson’s model suggests that the growth of the neural cells is evolutionary because when our ancestors searched for food they had to recall where they had found the food previously. This would link periods of starvation and neural growth.

Although, this study provides some evidence which links starvation to a healthy brain, Mattson and his colleagues still need to answer why these neurons actually grow? Is there another factor which may be causing the growth of the neurons?

Well, aside from that, for the people who prefer to diet, this study provides a little ray of hope!!

 

 

Ancient martial arts fights Parkinson’s disease

Man performing tai chi

Man performing tai chi (Photo by Ponto de Cultura Vila Buarque on Flickr)

A new study published in The New England Journal of Medicine shows that tai chi helps improve strength, balance, and physical function of those that suffer from Parkinson’s disease.

Parkinson’s disease is a neurodegenerative disease in which nerve cells in the brain that produce the chemical dopamine begin to die. The decrease in the production of dopamine results in movement impairments, loss of postural stability and many more problems that affect function and quality of life. According to Parkinson Society Canada, nearly 100, 000 Canadians have Parkinson’s disease and 1 in 300 people in Canada and the United States has Parkinson’s.

Tai chi is an ancient martial art that is characterized by slow, flowing movement and meditation that is practiced for both defense training as well as many health benefits.

The latest research recruited 195 patients who suffered movement and balance problems caused by Parkinson’s disease from four Oregon cities and randomly assigned them into three groups: tai chi, resistance training, or stretching. All patients in all three groups underwent two 60-minute sessions twice a week for 24 consecutive weeks. After 24 weeks, the patients in the tai chi group performed much better than the other two groups in many measures related to strength, balance, movement control, stride length, and functional reach.

What makes this finding more significant is that tai chi improves what current medications do not. Fuzhong Li, the study’s lead author, quoted in an interview with the New York Times, “Current medications do not work well in terms of providing impaired balance or postural instability.” Li added, “In fact, patients suffer a great deal of medication side effects which may lead to further deterioration in balance control.”

Tai chi may help your walks last longer. Photo by C. Frank Starmer

For those of you that are interested and have a few minutes of extra time, you may want to take a look at the short video of instructor Dr. Fuzhong Li, taken from “Tai Chi: Moving for Better Balance”, posted below.

 

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