About 75% of people who are diagnosed with dementia will have either Alzheimer’s or vascular dementia, or a combination of the two. There less common forms of dementia include dementia with Lewy bodies, fronto-temporal dementia (Pick’s disease), Huntington’s disease, alcohol-related dementias, and HIV/AIDS-related dementia. Alzheimer’s usually affects the elderly population and is a degenerative neurogical disorder and genetic factors are considered the greatest factors in the development of the disease. This conditions begins gradually and worsens progressively over several years. It is caused by nerve cells dying in certain areas of the brain and the connections between the affected nerve cells deteriorate.
Alzheimer's disease affects the brain through exponentially greater cell death and tissue loss, resulting in a decreased brain size. As a result, behavior, memory and thinking are affected. Vascular dementia is caused by blockages and breaches in the brain's blood supply that damage the brain and can be caused by any condition which results in an interruption to the blood flow to the brain, and as well as strokes, this could include diseased arteries, heart attacks, high blood pressure, raised cholesterol, diabetes, furred arteries and irregular heart rhythms. Any condition causing damage to the circulation of blood to the brain carries a risk to mental functioning. People experiencing vascular dementia will, like those with Alzheimer’s disease, have problems with learning, remembering, recognition, planning and problem solving.
Dementia with Lewy Bodies can be closely related to Parkinsons Disease and there is a theory that Dementia with Lewy Bodies interferes with two neurotransmitters called dopamine and acetylcholine which assist in the brains functions. In Frontotemporal dementia – Picks Disease, the brain shrinks in the frontal and temporal lobes and a build of specific protein’s occur in these areas. Once the proteins come together, they become toxic and cause brain cells to die. It is not understood why these proteins build up. There are other dementia types too, namely Creutzfeldt-Jakob Disease (CJD) caused by an abnormal infectious protein call Prion which cause nerve damage to
Dementia which begins gradually and worsens progressively over several years is usually caused by neurodegenerative disease that is, by conditions affecting only or primarily the neurons of the brain and causing gradual but irreversible loss of function of these cells. Less commonly, a non-degenerative condition may have secondary effects on brain cells, which may or may not be reversible if the condition is treated. The causes of dementia depend on the age at which symptoms begin. In the elderly population, a large majority of cases of dementia are caused by Alzheimer's disease, vascular dementia or both. It is rare to have dementia in young people 1.2 Describe the types of memory impairment commonly experienced by individuals with dementia.
Analysis of “Organ Sales Will Save Lives” English 112 11:30-12:45 9/19/2012 Analysis of “Organ Sales Will Save Lives” Thousands of people die every year from a tragic disease known as end-stage renal failure. However, these deaths could be easily prevented with the legalization of kidney sales for transplant. Countless people around the world are either desperate to sell or buy a kidney, yet restrictions on such transactions have caused the black market organ trade to thrive. Restraints on kidney sales not only promotes risky conditions in which to purchase one, but cheats the seller out of due compensation if it were legal. In her essay “Organ Sales Will Save Lives”, Joanna Mackay explains how legalizing kidney sales would be beneficial in more ways than one; saving the lives of patients willing to buy kidneys, and with legal compensation, helping to end poverty in the countries of those willing to sell.
The gradual changes and damage to the brain cells are caused by a build up of abnormal proteins in the brain. Dementia is a common condition that affects about 800,000 people in the UK. Your risk of developing dementia increases as you get older and condition usually occurs in people over the age of 65 years. The symptoms of people with dementia is memory (short/long term), Thinking, Speed, Language, Understanding, Judgement and sensory ability. There are some other factors Cause changes in individual condition with similar symptoms of dementia, like depression, confusional state due to an infection (UTI/chest infections), sensory changes due to age related degeneration, reduced metabolism cause poor appetite, Osteoporosis and fear of falling.
Dementia Awareness Understand what dementia is. 1) Dementia is where there is a decline of the brain and its abilities, it is caused when the brain is damaged by disease, for example, Alzheimer’s disease, damage to the brain or a series of strokes. There are several types of dementia these include, vascular, Alzheimer’s, lewy bodies, fronto-temporal. 2) Areas affected by dementia are memory loss, speed of thinking, mental agility, language, understanding and judgement. 3) Other conditions such as depression and delirium both have similar symptoms as dementia.
In addition to this, the connections between affected nerve cells deteriorate. As the disease progresses, it spreads and affects cells in other parts of the brain. Day to day memory problems are first noticed but other symptoms include not knowing the right words anymore, problem solving, decision making or 3 dimensional perception. * Vascular dementia is caused when the brain is deprived of oxygen. This happens when the arteries which carry oxygenated blood to the brain can't get there and the brain, or part of it, dies.
Scientists have successfully prolonged the lives of test subjects like flies, worms, and rodents. It is predicted that one day, this technology will be applicable for humans as well. Several methods of extending life include the use of caloric restriction, or genetic engineering. The key to achieving biological immortality lies in the aging process. Scientists have searched for the mechanisms responsible for aging, or the natural deterioration of the cells of our body, and have attempted to either stop these processes, or at least slow them down (Andrade 9).
Positive and negative sides of screening the human genome. After many years of hard work,a group of scientists finally discovered one of the most important secrets for human beings: the decodification of our genome. This scientific revolution, which looks like a story taken out of a science-fiction book, poses a number of doubts about what the future of the human race will be like and how this information will be used by science. In most of the cases, there seem to be positive and negative sides. The screening of the human genome is not an exception.