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.
later the person may become confused and may find it difficult to understand what is being said. Vascular dementia This describes all forms of dementia caused by damage to the blood vessels to the brain Symptoms can occur suddenly after a stroke or over time through a series of small strokes known as multi infarct dementia. Lewy bodies This form of dementia gets its name from the tiny spherical structures made of proteins that develop inside nerve cells . their presence inside the brain leads to the degeneration and death of brain tissue affecting memory , concentration and language skills . People with lewy bodies often suffer hallucinations.
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 is the term used to describe the condition which results in brain cells dying more quickly than the normal aging process, therefore commonly causing memory loss and a decline in the individuals mental and physical abilities. A build up of abnormal proteins on the brain is the most common cause however other heath factors can contribute to whether an individual is likely to be affected by dementia. Depending on the type of dementia the symptoms can differ. The most common form of dementia is Alzheimer's disease, this currently affects 62% of people diagnosed with dementia. Alzheimer's is caused by a gradual loss of brain cells.
There is currently no cure but medication can be taken to stabilise some symptoms for a certain period of time. The Second Most popular type of dementia is Vascular dementia. It occurs when the blood supply carrying oxygen and nutrients to the brain is interrupted an without it the brain cells die,
Understand the process and experience of dementia Definition of dementia is a syndrome usually of a chronic or progressive nature in which there is deterioration in cognitive function, thinking, orientation, comprehension, and calculation, learning capacity, language and judgement. Dementia is caused by damage in brain. The most common cause of dementia is called neurodegenerative diseases that include Alzheimer’s disease, vascular dementia, Huntington disease, Front temporal dementia and dementia with lewy bodies. With this disease the brain cell degenerate and die more quickly than normal ageing process, these decline a persons mental and some times physical abilities. The gradual changes and damage to the brain cells are caused by a build up of abnormal proteins in the brain.
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.
Unit 4223-316; Understand the process and experience of dementia. Outcome 1 1) A range of causes of dementia syndrome are; •Alzheimer's Disease •Most Common •Nerve cells dying in certain areas of the brain •Vascular Dementia •One or more major strokes or lots of small strokes •Deprivation of oxygenated blood •Fronto-temporal dementia •Changes in personality •Affects younger people, particularly men and very rare. 2)The types of memory impairment commonly experience by individuals with dementia are; •Difficulty remembering things that happened a short while ago but the same person may remember things that happened many years ago •Loss of basic skills, cleaning washing shopping •Forgetting where they live •Becoming unaware of their surroundings •An inability to have and show empathy •Forgetting their disabilities 3)How the brain works is that the left side of the brain analyses information collected from the right side and it enable you to expand on what you see, you are then able to say ‘I know that dog, it belongs to my neighbour’. Whereas the right side is responsible for putting information together. For example: If you see a dog the information comes from your eyes to the right side of your brain.
NHL can be classed in three different categories. Low is when the lymphomas are slowly growing tumors and carrier can go sometimes 10 years without treatment, however when treated the cancer usually will reoccur within five years of remission (Gellene 10). Remission is the time the cancer is “sleeping” or non-active. The intermediate-grade and high grade lymphomas are very fast growing tumors that will end in fatality if not treated within a year or two of diagnosis. The better prognosis of a remission is if the cancer is only in one lymph node, the tumors are no more than 10 centimeters, no systemic symptoms, and the younger you are, the better the outcome (Patlak 21).
An ischemic stroke is typically caused by excess buildup of plague on the blood vessel walls that narrows blood flow dramatically. A hemorrhagic stroke typically occurs when the blood vessel walls weaken over time, which leads to a bulge or rupture of the vessel. Aneurysm is the most common type of hemorrhagic strokes with a low survival rate. They also kill brain cells, which can never regenerate. The affect of strokes on the body can range between mild dizziness or slight numbness to impaired speech and loss of motor control.