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Childhood dementia is an umbrella group of rare, mostly untreatable neurodegenerative disorders that show symptoms before the age of 18. These conditions cause progressive deterioration of the brain and the loss of previously acquired skills such as talking, walking, and playing.
Generally, dementia with Lewy bodies is distinguished from Parkinson's disease dementia by the time frame in which dementia symptoms appear relative to parkinsonian symptoms and is diagnosed when cognitive symptoms begin before or at the same time as parkinsonism. Parkinson's disease dementia is the diagnosis when Parkinson's disease is already ...
Dementia with Lewy bodies (DLB) is a type of dementia, a group of diseases involving progressive neurodegeneration of the central nervous system. [11] It is one of the two Lewy body dementias, along with Parkinson's disease dementia. [12] Dementia with Lewy bodies can be classified in other ways.
CDD is a rare condition, with only 1.7 cases per 100,000. [13] [14] [15]A child affected with childhood disintegrative disorder shows normal development. Up until this point, the child has developed normally in the areas of language skills, social skills, comprehension skills, and has maintained those skills for about two years.
Frontotemporal dementia (FTD) is an early onset disorder that mostly occurs between the ages of 45 and 65, [13] but can begin earlier, and in 20–25% of cases onset is later. [11] [14] Men and women appear to be equally affected. [15] It is the most common early presenting dementia. [16]
Early-onset Alzheimer's disease (EOAD), also called younger-onset Alzheimer's disease (YOAD), [1] is Alzheimer's disease diagnosed before the age of 65. [2] It is an uncommon form of Alzheimer's, accounting for only 5–10% of all Alzheimer's cases.
Abnormally low rates of cerebral glucose metabolism are found in a characteristic pattern in the Alzheimer's disease brain, particularly in the posterior cingulate, parietal, temporal, and prefrontal cortices. These brain regions are believed to control multiple aspects of memory and cognition. This metabolic pattern is reproducible and has ...
Hashimoto's Thyroiditis is a T-lymphocyte mediated attack on the thyroid gland. [15] T helper 1 cells trigger macrophages and cytotoxic lymphocytes to destroy thyroid follicular cells, while T helper 2 cells stimulate the excessive production of B cells and plasma cells which generate antibodies against the thyroid antigens, leading to ...