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Task D-002 · Type D — Disease → mechanism

What is the proposed cellular mechanism linking GFAP mutation to astrocyte dysfunction in Alexander disease?

Difficulty
medium
Rarity stratum
sparse
Evidence type
review + primary_research
MONDO ID
MONDO:0008752
Curator notes

Rosenthal fiber accumulation and aberrant astrocyte Ca2+ signaling are both discussed as contributing mechanisms across gold documents — the underlying causal chain is still an active research question, not fully settled, and an answer should reflect that rather than overstate consensus (see benchmark_spec.md §Contradiction handling).

Generation outcome

Abstained
No
Abstention correct
Yes
Gold in retrieved
2.00
Generation cost
$0.000329
Claims
4
Supported
4
Contradicted
0
Unverifiable
0

Gold documents (3)

  • [Alexander disease: diversity of cell population and interactions between neuron and glia].
    pubmed:34193704retrieved ✓source
  • Glial fibrillary acidic protein: from intermediate filament assembly and gliosis to neurobiomarker.
    pubmed:25975510retrieved ✓source
  • Astrocyte-mediated infantile-onset leukoencephalopathy mouse model.
    pubmed:27748972not retrievedsource

Retrieved documents (6)

  • Mutations in GFAP Alter Early Lineage Commitment of Organoids.
    pubmed:40735838
  • Glial fibrillary acidic protein: from intermediate filament assembly and gliosis to neurobiomarker.
    pubmed:25975510gold
  • Clinical characteristics of Alexander disease.
    pubmed:32847470
  • [Alexander disease: diversity of cell population and interactions between neuron and glia].
    pubmed:34193704gold
  • Alexander disease.
    pubmed:29478608
  • Astrocyte-Oligodendrocyte-Microglia Crosstalk in Astrocytopathies.
    pubmed:33328899

Generated claims (4)

supportedconfidence 1.00

GFAP is a type-3 intermediate filament protein mainly expressed in astrocytes in the central nervous system.

pubmed:40735838
supportedconfidence 1.00

Mutations in GFAP can severely affect neural organoid development through altering lineage commitment in embryoid bodies.

pubmed:40735838
supportedconfidence 1.00

Astrocyte dysfunction in the AxD brain is considered to be involved in its pathogenesis.

pubmed:34193704
supportedconfidence 1.00

Aberrant Ca2+ signals in astrocytes were associated with the upregulation of reactive phenotype.

pubmed:34193704