Scientists believe that for most people, Alzheimer's results from a combination of genetics, lifestyle and environmental factors that affect the brain over time. Alzheimer's is caused by specific genetic changes that virtually guarantee a person will develop the disease. The causal effect for this disease is still unknown with fingers pointing to plaques and tangles in the brain. Although the causes of Alzheimer's are not yet fully understood, its effect on the brain is clear. Alzheimer's disease damages and kills brain cells. A brain affected by Alzheimer's disease has many fewer cells and many fewer connections among surviving cells than does a healthy brain. As more and more brain cells die, Alzheimer's leads to enormous brain shrinkage. When doctors examined an Alzheimer's brain tissue under the microscope, they saw two types of abnormalities that are considered the cause of the disease. One of these abnormalities is plaques that clump up, a protein called beta-amyloid which damages and destroys brain cells. In patients with Alzheimer’s the plaques created interfere with cell to cell communication. The other abnormality seen is tangles in the brain. Brain cells depend on an internal support and transport system to carry nutrients and other essential materials throughout their long extensions. This system requires the normal structure and functioning of a protein called tau. In an Alzheimer's patient, the threads of tau protein twist into abnormal tangles inside the brain cells, leading to failure of the transport system. (Alzheimer's Association) (National Institutes of Health, 2012) There are three stages towards Alzheimer’s and one should be aware of the important signs and symptoms. For instance, one should be aware of co... ... middle of paper ... ... Furthermore, the patients with Alzheimer's have trouble understanding visual images and spatial relationships. In terms of perception, they may pass a mirror and think someone else is in the room with them. They often have trouble recognize their own reflection. (Alzheimer's Association) (Mayo Clinic) Works Cited Alzheimer's Association. (n.d.). Alzheimer's Association. Retrieved April 21, 2014, from Alzheimer's Association: http://www.alz.org/alzheimers_disease_what_is_alzheimers.asp Mayo Clinic. (n.d.). Mayo Clinic. Retrieved April 21, 2014, from Alzheimer's Disease: http://www.mayoclinic.org/diseases-conditions/alzheimers-disease/basics/definition/con-20023871 National Institutes of Health. (2012, September). Alzheimer's Disease Fact Sheet. Retrieved from National Institute on Aging: http://www.nia.nih.gov/alzheimers/publication/alzheimers-disease-fact-sheet
There are seven stages of Alzheimer’s, classified by Dr. Barry Reisberg, M.D. clinical director of the New York University School of Medicine’s Silberstein Aging and Dementia Research Center. Each stage carr...
Although Alzheimer’s disease appears to be the most common cause of dementia, “more than 50 conditions are associated with dementia, including degenerative ...
...(2012) Alzheimer's Society Dementia A national challenge. Report. Available from: http://www.alzheimers.org.uk/site/scripts/download_info.php?fileID=1389 [Accessed 3 February 2014]
performance that involves, but is not limited to, a loss in at least 2 of the
Alzheimer’s disease is a complex illness that affects the brain tissue directly and undergoes gradual memory and behavioral changes which makes it difficult to diagnose. It is known to be the most common form of dementia and is irreversible. Over four million older Americans have Alzheimer’s, and that number is expected to triple in the next twenty years as more people live into their eighties and nineties. (Johnson, 1989). There is still no cure for Alzheimer’s but throughout the past few years a lot of progress has been made.
In this day and age, it seems as though almost everyone has experience a loved one taken away form a very serious disease known as Alzheimer’s disease. Alzheimer’s disease is unbelievably devastating for everyone affected by it. This disease is causing major economical problems such as less occupancy in the nursing homes, and hospitals due to the rising population of elderly men and women being diagnosed with it everyday. Because there is not yet a cure for this disease and the percent of the population being diagnosed keeps rapidly rising, more time and money needs to go towards Alzheimer’s research.
Alzheimer's Disease Introduction to Alzheimer's Alzheimer's disease is a progressive, degenerative disease of the brain. It was first described by the German neuropathologist Alois Alzheimer (1864-1915). in 1905. This disease worsens with advancing age, although there is no evidence. that it is caused by the aging process.
Alzheimer’s disease, named after Dr. Alois Alzheimer, is a disease that is on the rise in America and the rest of the world. People should learn as much as they want about this disease, because as you age, your chances of becoming an Alzheimer’s Disease, or AD, patient increases. It is estimated that approximately 3 percent of Americans between the ages of 65 and 74 have the illness, and more than half of all people over age 85 have the ailment.
In 1906, a German physician named Dr. Alois Alzheimer dealt with a patient that had been battling severe memory and confusion problems and had tremendous difficulty understanding questions and basic functions. Alzheimer suspected that the ailment had more to it than inherent memory loss. During an autopsy of the brain, he discovered that there were deposits of neuritic plaques surrounding the nerve cells and twisted fibers, known as neurofibrillary tangles, inside of the nerve cells. These observations became the definitive diagnosis of Alzheimer’s disease. The plaques and tangles that develop are a natural part of aging; however, they develop far more aggressively in Alzheimer’s victims. The plaques and tangles then block communication among nerve cells and disrupt the cells processes, eventually killing them. This destruction causes memory failure, personality changes, and problems carrying out everyday functions. Alzheimer’s especially attacks the memory. A victim in the later stage of the disease can...
Scientists know that Alzheimer disease is characterized by a gradual spread of sticky plaques and clumps of tangled fibers that disrupt the organization of nerve cells in the brain. However , a definite cause, prevention, or cause has not been found.
“The person who has Alzheimer’s knows that pieces or the puzzle are missing, and they are terrified.” Instagram
Alzheimer’s disease or AD is an incurable disorder of the brain that results in loss of normal brain structure and function. In an AD brain, normal brain tissue is slowly replaced by structures called plaques and neurofibrillary tangles. The plaques represent a naturally occurring sticky protein called beta amyloid and in an Alzheimer’s brain, sufferer’s tend to accumulate too much of this protein. Neurofibrillary tangles represent collapsed tau proteins which, in a normal brain along with microtubules, form a skeleton that maintains the shape of the nerve cells. In Alzheimer’s disease, the tau proteins break loose from their normal location and form tangles. Without the support of these molecules, nerve cells collapse and die. As normal brain structure is lost with progression of the disease, brain function also degenerates. Patients afflicted with Alzheimer’s disease display a gradual mental decline. Initially, and most apparently, there is a loss of short-term memory. Eventually, as a patient progresses to later stages of the disease, the brain becomes so damaged that patients can no longer communicate or recognize immediate family or even themselves. They have difficulty walking and standing and frequently fall. In the final stages, they lose bladder and bowel control and have difficulty with swallowing, frequently leaving them malnourished and dehydrated. Eventually, they are forced to remain bedridden and, without the help of life-prolonging measures provided in a hospital, die. However, this level of deterioration is severe and may take as long as twenty years. Because of the disease’s slow progress and its usual later start in a person’s life, a victim of AD will usually die first of natural causes. Under the objectives ...
Dementia is an organic brain syndrome which results in global cognitive impairments. Dementia can occur as a result of a variety of neurological diseases. Some of the more well known dementing diseases include Alzheimer's disease (AD), multi-infarct dementia (MID), and Huntington's disease (HD). Throughout this essay the emphasis will be placed on AD (also known as dementia of the Alzheimer's type, and primary degenerative dementia), because statistically it is the most significant dementing disease occurring in over 50% of demented patients (see epidemiology).
There are four main types of dementia with AD being the most widespread form. It ac...
Mykenzie Moyle Ms. Douglass English I, P.4 16 May 2014 Research Paper Alzheimer’s Disease is formed in the brain but, yet, has no known cure or treatment. Alzheimer’s disease has many symptoms. Memory is the biggest symptom along with mood swings and having a hard time keeping up with a conversation. A patient with Alzheimer’s goes through 7 stages; The first stage, which is misplacing things or forgetting what something is used for, second stage, they start losing more of their memory and they begin to forget where they are or what they are doing, the third, fourth and fifth begin to mentally decline and need someone to take care of them and worsen over time.