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Tauopatija — разлика између измена

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Верзија на датум 29. новембар 2023. у 23:00

Tauopatija
Dijagram normalne mikrotubule i jedne zahvaćene tauopatijom

Tauopatija belongs to a class of neurodegenerative diseases involving the aggregation of tau protein into neurofibrillary or gliofibrillary tangles in the human brain. Tangles are formed by hyperphosphorylation of the microtubule protein known as tau, causing the protein to dissociate from microtubules and form insoluble aggregates.[1] (These aggregations are also called paired helical filaments.) The mechanism of tangle formation is not well understood, and whether tangles are a primary cause of Alzheimer's disease or play a peripheral role is unknown.

Detekcija i snimanje

Post-mortem
Tau tangles are seen microscopically in stained brain samples.[2]
Pre-mortem
In living patients tau tangle locations can be imaged with a PET scan using a suitable radio-emissive agent.[3]

Reference

  1. ^ Goedert M, Spillantini MG (мај 2017). „Propagation of Tau aggregates”. Molecular Brain. 10 (1): 18. PMC 5450399Слободан приступ. PMID 28558799. doi:10.1186/s13041-017-0298-7Слободан приступ. 
  2. ^ Moloney C, et al. (мај 2022). „Phosphorylated tau sites that are elevated in Alzheimer's disease fluid biomarkers are visualized in early neurofibrillary tangle maturity levels in the post mortem brain”. Alzheimer's & Dementia. 
  3. ^ Alzheimer 'tau' protein far surpasses amyloid in predicting toll on brain tissue

Spoljašnje veze

Klasifikacija


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