Pathogenesis of Cognitive disorders

The classic neuropathological signs of Cognitive disorders are amyloid plaques and neurofibrillary tangles. Plaques consist largely of the protein fragment beta-amyloid. This fragment is produced from a "parent" molecule called amyloid precursor protein. Tangles consist of tau, a protein normally involved in maintaining the internal structure of the nerve cell. While tau is normally modified by phosphorylation, or the attachment of phosphate molecules, excessive phosphorylation appears to contribute to tangle formation and prevents the protein from carrying out its normal functions. Oxidative stress, or damage to cellular structures by toxic oxygen molecules called free radicals, is also regarded as a pathology characteristic of Alzheimer’s. Individuals with Alzheimer’s typically experience brain inflammation. Many of the oldest patients with Alzheimer’s show signs of cerebrovascular disease in addition to "classic" Alzheimer's neuropathology.

 

  • Most common Neurocognitive Disorders
  • Therapies for Neurological Disorders
  • Stroke Neurological Disorders
  • Brain Disorders & Therapeutics

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Pathogenesis of Cognitive disorders Conference Speakers