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What Is The Cause Of Alzheimer's Disease?

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Alzheimer’s disease (AD) is the sixth leading cause of death in the United States, and currently affects over five million US citizens. It is estimated 35 million people suffer with AD world wide, with incidences increasing rapidly. It is projected by the year 2050, cases of AD will nearly double. After symptoms become noticeable, those with Alzheimers have an average of eight years to live before it takes their lives. Although there are variety of known factors contributing to an increased risk of Alzheimer’s disease, compelling evidence for the causes and treatment of Alzheimer’s disease are being discovered in the realm of nutrition. Simply put, Alzheimer’s disease is the most prevalent form of dementia. Dementia is the loss of both memory …show more content…

Furthermore, many of the hypotheses have many compelling researched evidences, indicating the cause of AD likely has several influencing factors. Currently, a host of factors including health, environment, lifestyle preferences, and genetics are thought to accumulatively play a role in the development and cause of the disease (About Alzheimer’s Disease: Causes). Anatomical changes within the brains of Alzheimer’s disease patients have produced several schools of thought explaining how they contribute to the disease. For example, neurofibulary tangles, which are twisted fibers of microtubules found in brain cells, are not found in people with normal cognition, but they are found in all Alzheimer’s disease patients. Microtubules are important structures in brain cells which help with the transportation of nutrients and other necessary substances. Another hallmark of AD is Amyloid plaques found in the brain. The plaque is formed from protein fragments forming in between nerve cells. This is thought to inhibit the effectiveness of the brain signals being sent through the nerves and thus impairing cognition. Scientists trying to understand how the formation of neurofibulary tangles and Amyloid plaques occur, have looked at additional signs of AD. These other findings including the integrity of the blood brain …show more content…

But unlike other parts of the body, the brain is the only organ which has a filtering system to ensure essential nutrients flow into the brain while harmful ones are omitted. This protects against foreign substances entering the brain that might be deleterious to its functions (Bates, 2014). Studies have indicated, dietary saturated fats and cholesterol cause dysfunction of the blood brain barrier. It has been observed when this barrier is compromised and broken down, the blood can deliver lipoproteins and cholesterol into the brain. This is a concern because a healthy brain creates its own cholesterol and does not need additional plasma cholesterol. Further investigation has shown that reducing cholesterol drugs is associated with a decrease in AD, and increased cholesterol plasma in midlife is associated with increase in AD (Venturip et al.,

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