Dementia: Alzheimer's Disease

0
14K

Alzheimer's disease accounts for 60–70% of cases of dementia worldwide. The most common symptoms of Alzheimer's disease are short-term memory loss and word-finding difficulties. Trouble with visuospatial functioning (getting lost often), reasoning, judgment and insight fail. Insight refers to whether or not the person realizes they have memory problems.

The part of the brain most affected by Alzheimer's is the hippocampus. Other parts that show atrophy (shrinking) include the temporal and parietal lobes. Although this pattern of brain shrinkage suggests Alzheimer's, it is variable and a brain scan is insufficient for a diagnosis. The relationship between general anesthesia and Alzheimer's in elderly people is unclear.

Little is known about the events that occur during and that actually cause Alzheimer's disease. This is due to the fact that brain tissue from patients with the disease can only be studied after the person's death. However, it is known that one of the first aspects of the disease is a dysfunction in the gene that produces amyloid. Extracellular senile plaques (SPs), consisting of beta-amyloid (Aβ) peptides, and intracellular neurofibrillary tangles (NFTs) that are formed by hyperphosphorylated tau proteins, are two well-established pathological hallmarks of AD. Amyloid causes inflammation around the senile plaques of the brain, and too much build up of this inflammation leads to changes in the brain that cannot be controlled, leading to the symptoms of Alzheimer's.

Pesquisar
Categorias
Leia Mais
Social Issues
Green Book. (2018)
A working-class Italian-American bouncer becomes the driver for an African-American classical...
Por Leonard Pokrovski 2023-02-08 12:06:53 0 16K
Analysis and Opinion
News and Opinions: Understanding the Divide and Their Impact
In today's media landscape, it's essential to distinguish between news and opinions, as they...
Por Dacey Rankins 2024-12-10 14:00:33 0 7K
Социальные проблемы
Храброе сердце. Braveheart. (1995)
Действие фильма начинается в 1280 году в Шотландии. Это история легендарного национального героя...
Por Nikolai Pokryshkin 2023-01-01 18:28:38 0 18K
Телевидение
Антимайдан. Соловьев Live TV. Круглосуточный прямой эфир.
Авторская политическая программа журналиста, радио- и телеведущего Владимира Соловьева.В прямом...
Por Nikolai Pokryshkin 2023-03-06 16:48:08 0 22K
Искусство, культура и развлечения
Моя поп-группа. La mia banda suona il pop. (2020)
Сюжет этой убойной итальянской комедии разворачивается вокруг одного очень крупного русского...
Por Nikolai Pokryshkin 2022-10-02 18:05:09 0 23K
image/svg+xml


BigMoney.VIP Powered by Hosting Pokrov