Sunday, April 29, 2012

Berries & Parkinson's Disease


Charina Hanley 
Berries & Parkinson's Disease
A new study published on April 4th reveals that people, particularly men, who include more berry fruits, tea, and red wine into their diets are associated with having a slower progression of cognitive degeneration and Parkinson’s disease as they age. The researchers studied 130,000 people of both genders for 22 years, and every four years they were asked how frequently they ate certain groups of food. Berries like blueberries and strawberries contain the highest amounts of flavonoids. A link was found between both men and women’s risk of Parkinson’s and consumption of a particular subgroup of the compound, called anthocyanins. The study showed that people who ate at least one serving of berries a week were 25% less likely to develop Parkinson’s disease compared to those who did not. Further research will need to be done before the hypothesis that people who eat more berries may indicate that they have made other healthier lifestyle choices, which has been recommended by doctors to decrease the chance of cognitive decline and Parkinson’s disease.

This topic is relevant to the current term because Parkinson’s disease is a brain disorder, and the brain is the essential part of the Central Nervous System. Nerve cells in the brain use a chemical called dopamine to help control both voluntary and involuntary movement. In Parkinson’s disease, the cells in the brain that produce the chemical are slowly damaged and die. The loss of the chemical causes the cells in that part of the brain, where the cells were destroyed, to be unable to send messages properly, which leads to loss of muscle function. The causes for the loss of these dopamine producing cells are unknown. Symptoms of the disease (which express problems in the somatic and autonomic nervous system) include: drooling, no facial expressions, difficulty with many movements, tremors/shaking, slow/quiet/monotone speech, and loss of coordination. Also, symptoms like low blood pressure when getting up after laying down or sitting, lack of body temperature control, drooling, and sweating are especially associated to malfunctions in the autonomic nervous system, which controls key involuntary functions. 


Article link: http://www.myhealthnewsdaily.com/2416-flavonoids-berries-parkinsons-disease.html

Works Cited:
Board, A.D.A.M. Editorial. "Causes, Incidence, and Risk Factors." Parkinson's 
        Disease. U.S. National Library of Medicine, 18 Nov. 2000. Web. 29 Apr. 2012. 
        <http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001762>.
My Health News Daily Staff. "Compounds in Berries May Ward Off Parkinson's.  
        "Berries May Ward Off Parkinson's Disease. Tech Media Network, 4 Apr. 2012.
        Web. 29 Apr. 2012. <http://www.myhealthnewsdaily.com/2416-
        flavonoidsberries-parkinsons-disease.html>.

Thursday, April 5, 2012

Due Dates and Topics for Quarter 4

Due Dates:
- Post Media, Summary, and Relevance by May 7.
- Questions of Classmates made in comments by May 29.
- Answers to Questions posted in comments by June 4.
(Early completion is recommended)

The topics for term 4 are all Human Body Systems.