Ubiquitin immunoreactive inclusions in cells are most strongly associated with which condition?

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Multiple Choice

Ubiquitin immunoreactive inclusions in cells are most strongly associated with which condition?

Ubiquitin-positive inclusions are a hallmark feature of frontotemporal dementia, specifically the ubiquitin-positive variant of frontotemporal lobar degeneration (FTLD‑U). These inclusions reflect abnormal protein processing with ubiquitin tagging, and many FTLD-U cases involve TDP-43 pathology. Among the conditions listed, this pattern is most characteristic of frontotemporal dementia. Alzheimer's disease centers on tau tangles and beta-amyloid plaques; Lewy body dementia features alpha-synuclein–containing Lewy bodies (though ubiquitin can be present, it’s not the defining marker); Pick disease is a form of FTLD with Pick bodies that are tau-positive. Thus, ubiquitin-immunoreactive inclusions point most strongly to frontotemporal dementia.

Ubiquitin-positive inclusions are a hallmark feature of frontotemporal dementia, specifically the ubiquitin-positive variant of frontotemporal lobar degeneration (FTLD‑U). These inclusions reflect abnormal protein processing with ubiquitin tagging, and many FTLD-U cases involve TDP-43 pathology. Among the conditions listed, this pattern is most characteristic of frontotemporal dementia. Alzheimer's disease centers on tau tangles and beta-amyloid plaques; Lewy body dementia features alpha-synuclein–containing Lewy bodies (though ubiquitin can be present, it’s not the defining marker); Pick disease is a form of FTLD with Pick bodies that are tau-positive. Thus, ubiquitin-immunoreactive inclusions point most strongly to frontotemporal dementia.

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