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      Neurofibrillary tangles but not senile plaques parallel duration and severity of Alzheimer's disease

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      Neurology

      Ovid Technologies (Wolters Kluwer Health)

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          Abstract

          We studied the accumulation of neurofibrillary tangles (NFTs) and senile plaques (SPs) in 10 Alzheimer's disease patients who had been examined during life. We counted NFTs and SPs in 13 cytoarchitectural regions representing limbic, primary sensory, and association cortices, and in subcortical neurotransmitter-specific areas. The degree of neuropathologic change was compared with the severity of dementia, as assessed by the Blessed Dementia Scale and duration of illness. We found that (1) the severity of dementia was positively related to the number of NFTs in neocortex, but not to the degree of SP deposition; (2) NFTs accumulate in a consistent pattern reflecting hierarchic vulnerability of individual cytoarchitectural fields; (3) NFTs appeared in the entorhinal cortex, CA1/subiculum field of the hippocampal formation, and the amygdala early in the disease process; and (4) the degree of SP deposition was also related to a hierarchic vulnerability of certain brain areas to accumulate SPs, but the pattern of SP distribution was different from that of NFT.

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          Author and article information

          Journal
          Neurology
          Neurology
          Ovid Technologies (Wolters Kluwer Health)
          0028-3878
          1526-632X
          March 01 1992
          March 01 1992
          : 42
          : 3
          : 631
          Article
          10.1212/WNL.42.3.631
          1549228
          © 1992

          Molecular medicine, Neurosciences

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