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Alzheimer's introduction
Alzheimer's disease introduction paper
Alzheimer's disease introduction paper
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Stem cells are a type of unspecialized cells that can revive themselves through the process of cell division (Abdel-Salam and Oma, 2011). They have a phenomenal potential to differentiate into other specific cell types in a living organism. These cells can also be activated to turn into organ-specific cells or tissues with defined activity but only under specific experimental set-up. Stem cells have the ability to remain as they are or divide further to renew deteriorated and damaged tissue cells. Recently it has been discovered that stem cells can be used to treat Alzheimer’s disease but still a lot of clinical trials are being conducted to find a specific government approved treatment. Alzheimer’s disease is the most common cause of dementia. The very first stages of Alzheimer’ include symptoms like confusion and using the right words while talking. As it gets on to later stages symptoms like loss of memory and mood swings start to appear (Begley et al., 2001). Any sort of stem cell treatment is not available to Alzheimer’s patients yet as researchers are still conducting new experiments. There are multiple neurons that get damaged by Alzheimer’s which makes the problem even more complex and different approach needs to be followed every time a clinical trial is conducted. One approach that the researchers are following includes transplanting few neural stem cells from the brain of a normal person into the brain of patient suffering from Alzheimer’s (Abdel-Salam and Omar, 2011). Through this the researchers hope that patient’s brain will start making healthy neurons but even if the transplantation is successful there is no guarantee that the symptoms will reduce as during Alzheimer’s many areas of the brain get damaged (euros... ... middle of paper ... ...he fact that scientists can use it to understand what causes tangles and plaques in the brain of the patient and to discover new treatment drugs (Journal of Alzheimer's Disease, 2005). This approach can be very helpful for doctors and clinicians to find a cure for Alzheimer’s disease but this disease varies a lot in each patient and they all might have a different cause of the disease (Begley et al., 2001). Many companies have started to offer stem cell treatment for this disease however there is no evidence that it is an effective and safe treatment. A lot of scientists are considering the fact that one day stem cells will help cure and treat Alzheimer’s disease in another way sooner than the advancement of potential stem cell transplant therapy. Using stem cells taken from Alzheimer’s patient new treatments can be developed and it is a growing field of research.
The wide range of prospective uses for stem cells could greatly improve the health and wellbeing of many people. In stem cell treatments, undifferentiated cells are programmed to form specific cells, which can then be transplanted to the afflicted area. Stems cells can possibly treat afflictions including “Alzheimer’s diseases, spinal cord injury, stroke, burns, heart disease, diabetes, osteoarthritis, and rheumatoid arthritis” (“Stem Cell Basics”). Another important use is in drug testing. Drugs can be tested on stem cells that develop into the target tissue before using it on human test subjects, which improves safety. Finally, transplantation of organs created from stem cells could eliminate the need for human...
Scientists would be able to grow spinal cells from pluripotent stem cells. These cells could possibly repair spinal cord damage. Those afflicted by paralysis, such as Christopher Reeve, could possibly move again. Stem cells could also be used to grow nerve cells, possibly combating Parkinson’s disease or Alzheimer’s. While it will be many years before scientists may actually be able to find a way to combat these diseases, there is a great promise in stem cells.
Thesis/Preview Statement – Alzheimer’s disease (AD) causes a decline in brain function, it destroys healthy nerve cells. Today, we have discussed Causes, Symptoms, and Diagnosis of AD.
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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.
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.
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 ...
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 is a fatal neurodegenerative disease that becomes more prevalent with age. Discovered by German psychologist Alois Alzheimer in 1906, it is associated with a memory loss, speech impediment, and dementia. In Canada alone, 500,000 people suffer from this terrible disease and the number of cases is predicted to double by 2031[7]. Worldwide, nearly 44 million people are believed to be experiencing Alzheimer’s disease and every 68 seconds, someone in the United States of America develops Alzheimer’s [8]. Alzheimer’s disease is also the sixth leading cause of death in North America. Furthermore, it is the only leading cause of death that is still increasing in prevalence. Not only fatal, Alzheimer’s is also severely crippling for all the friends and family that are affected by the patient. The memory loss and dementia that is directly linked to Alzheimer’s disease can cause the patient to forget the identity of their loved ones. For the people that have known the patient for many years, this can be very devastating. The long and terrible journey from an able-bodied and functioning member of society to a barely self-sufficient person is not a pleasant one. Undoubtedly, Alzheimer’s disease needs to be cured not only for those suffering from the affliction, but for their loved ones who have to endure the fateful journey as well.
Alzheimer's disease is the most common form of dementia, and this terminal, progressive brain disorder has no known cause or cure. Its greatest known risk factor is increasing age which is why is it is infamous for developing in the elderly, typically in ages 65 or over, however for the 5%(1) that develop Alzheimer’s in their 40s or 50s it is known as early Alzheimer’s. Because Alzheimer’s worsens over time, those with it tend to struggle with completing daily tasks especially elderly people. Given that there is no cure for Alzheimer’s, the treatments available slow the worsening of dementia symptoms and improve quality of life for those with Alzheimer’s and their caregivers. It is not known what causes Alzheimer's, however, those with Alzheimer's have been found to have abnormal amounts of protein (amyloid plaques) and fibres.(The amyloid plaques and fibres are found in regions of the brain where problem solving and thinking take place e.g The cerebrum.) Due to the unusual amounts of amyloid plaques and fibres, it reduces the effectiveness of healthy neurons and eventually, destroying them.
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...
Alzheimer’s disease (AD) is a progressive, terminal, degenerative brain disease. It is the fourth leading cause of death in adults and currently affects over four million people in the United States. This number is expected to increase over the next several years as the baby boomers age, until it reaches fourteen million by the year 2025.
Since ancient times, it has been clear that some people lose mental sharpness (cognitive function) as they age. However, in 1906, the German neurologist Alois Alzheimer began an autopsy of a woman from Frankfurt, that had died after several years of progressive mental deterioration. From the accounts of the doctor, family, and friends of the woman, Alzheimer put together her mental state prior to death, and described the woman as being marked by increased confusion, disorientation, and memory loss.Taking advantage of staining techniques that had recently been established, Alzheimer noticed an odd disorganization of the nerve cells in the womanís cerebral cortex, the part of the brain...
Dementia is a major neurocognitive disorder that interferes with the independence of the elderly by inhibiting memory and thinking skills. Fifty to eighty percent of dementia cases constitute of Alzheimer’s diagnoses; consequently Alzheimer’s disease is the most common type of dementia and currently affects 5.2 million Americans. Most of these cases are patients above the age of 65 and by 2050; 13.8 million Americans in total will suffer Alzheimer’s due to aging of the general population, specifically the baby boomers. Total cost to society ranges from $157- $215 billion (Associated Press). Some would assume the cost of Alzheimer’s to be incurred by pharmaceuticals or medical costs, however RAND Corp suggests dementia cost to society is from care rather than treatment. Therefore, assistance provided by informal providers and directs caregivers incur a majority of the financial and social cost. Currently, the workforce does not have the capacity or training to care for these unique patients; the delivery system needs to address Alzheimer’s as the population ages and more and more fam...