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  2. Childhood dementia - Wikipedia

    en.wikipedia.org/wiki/Childhood_dementia

    In other childhood dementia disorders, early development may be slower than typical before declining. [12] This progressive decline causes difficulty concentrating, memory loss, confusion, and learning difficulties, [4] in addition to the loss of developmental skills acquired previously, such as: walking, talking, writing, reading, and playing.

  3. Alzheimer's disease - Wikipedia

    en.wikipedia.org/wiki/Alzheimer's_disease

    The oldest hypothesis, on which most drug therapies are based, is the cholinergic hypothesis, which proposes that Alzheimer's disease is caused by reduced synthesis of the neurotransmitter acetylcholine. [14] The loss of cholinergic neurons noted in the limbic system and cerebral cortex, is a key feature in the progression of Alzheimer's. [39]

  4. Dementia - Wikipedia

    en.wikipedia.org/wiki/Dementia

    This is an accepted version of this page This is the latest accepted revision, reviewed on 11 February 2025. Long-term brain disorders causing impaired memory, thinking and behavior This article is about the cognitive disorder. For other uses, see Dementia (disambiguation). "Senile" and "Demented" redirect here. For other uses, see Senile (disambiguation) and Demented (disambiguation). Medical ...

  5. List of neurological conditions and disorders - Wikipedia

    en.wikipedia.org/wiki/List_of_neurological...

    This is a list of major and frequently observed neurological disorders (e.g., Alzheimer's disease), symptoms (e.g., back pain), signs (e.g., aphasia) and syndromes (e.g., Aicardi syndrome). There is disagreement over the definitions and criteria used to delineate various disorders and whether some of these conditions should be classified as ...

  6. Early onset dementia - Wikipedia

    en.wikipedia.org/wiki/Early_onset_dementia

    The term young onset dementia is becoming more widely used to avoid the potential confusion between early onset dementia and early stage dementia. This term is now used as presenile dementia which is a historical term of people diagnosed with dementia from a younger age of 51 years old. This is caused by an atypical arterioclerosis of the brain.

  7. Early-onset Alzheimer's disease - Wikipedia

    en.wikipedia.org/wiki/Early-onset_Alzheimer's...

    It is an uncommon form of Alzheimer's, accounting for only 5–10% of all Alzheimer's cases. About 60% have a positive family history of Alzheimer's and 13% of them are inherited in an autosomal dominant manner. Most cases of early-onset Alzheimer's share the same traits as the "late-onset" form and are not caused by known genetic mutations.

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