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Found Dementia 14 times.

Displaying results 1 to 10.

1. Alzheimer's disease
Alzheimer's disease is a form of senile dementia of unknown origin that has characteristic pathologic changes in the brain. Its onset is slow and at an earlier age than the common dementia. After onset, it progresses steadily and the pathology is more severe than the average form of senile dementia. Most studies report that this disease is responsible for the cognitive decline in about 50% of demented older adults.

2. Alzheimer's disease (AD)
A progressive, neurodegenerative disease characterized by loss of function and death of nerve cell s in several areas of the brain leading to loss of cognitive function such as memory and language. The cause of nerve cell death is unknown. Alzheimer's disease is the most common cause of dementia .

3. Amyotrophic lateral sclerosis
This is the most frequent form of the progressive nerve disorders affecting the brain , brain stem and spinal cord, usually appearing when a person is 50-70 years old. It is sometimes associated with dementia and Parkinson's disease .

4. Creutzfeldt-Jakob disease (Jakob-Creutzfeldt disease)
A rare neuro-degenerative disease, a contagious form of spongiform encephalitis, thought to be caused by a slow virus which is usually fatal and has no cure. The main symptom is progressive dementia (deterioration of brain function), and other symptoms which can also occur include wasting away of the muscles, tremors, and a variety of different neurological conditions. Recent research has linked this disease with bovine spongiform enchephalitis (BSE) , more popularly known as "Mad Cow Disease," which is thought to be caused by a prion (an abnormally-configured protein ).

5. Dementia
dementia is clinical syndrome characterized by the organic loss of intellectual functioning, such as impairment of orientation, memory, comprehension, calculation, learning capacity and judgment. The DSM of the American Psychiatric Association has a summary of diagnostic criteria for dementia. The prevalence of dementia increases with age, starting with 1 percent at age 60, and double the rate every 5 years. Alzheimer's disease is associated with dementia.

6. Dementia
Loss of intellectual functions, (such as thinking, remembering, and reasoning) of sufficient severity to interfere within an individual's daily functioning.

7. Down's syndrome (Down syndrome, Trisomy 21)
Physical characteristics of a person with Down's syndrome include small and short head, flat nasal bridge, reddish cheeks, dry lips, large, protruding tongue, small ears, epicanthal folds, and short neck. Mental retardation and hypotonia are also major symptoms, the degree of which varies with individuals. There is also a high incidence of congenital heart diseases and duodenal atresia . With good support, persons with this syndrome can develop their full potential. An Alzheimer -like dementia often occurs in the fourth and fifth decades and leads to a shortened life expectancy. The chromosomal abnormality is diagnostic. In 95% of cases, trisomy 21 is present (one extra chromosome 21), and in the rest which has the usual 46 chromosomes present, there is an abnormal translocation involving chromosome 21.

8. Huntington's disease (Huntington's chorea)
Huntington's disease is a genetic disease with onset between 30 to 50 years of age and characterized by chorea (involuntary movements), behavior changes and dementia. The defect in on the short arm of chromosome 4 and is an autosomal dominant inherited condition.

9. Hydrocephalus (hydrocephaly)
Hydrocephalus is a disorder in which the volume of the cerebrospinal fluid (CSF) increases in association with dilatation of the ventricles of the brain. There is a condition called normal-pressure hydrocephalus which is associated with dementia .

10. Multi-infarct dementia (MID, vascular dementia)
This form of dementia is caused by a number of stroke s in the brain. These strokes can cause specific symptoms, depending on their severity and location, and can cause general symptoms of dementia. MID cannot be treated; once the nerve cells die, they cannot be replaced. However, the underlying condition leading to strokes (e.g., high blood pressure, diabetes ) can be treated, which may help prevent further damage.

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