Hata Y, Nakase M, Ichimata S, Yoshida K, Nishida N. Neuropathology of patients with preclinical or early clinical Alzheimer's disease with pathogenic PSEN1_p. L392V: Comparison of advanced siblings.
Alzheimers Dement 2024;
20:2291-2296. [PMID:
38215435 PMCID:
PMC10984492 DOI:
10.1002/alz.13675]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 11/28/2023] [Accepted: 12/06/2023] [Indexed: 01/14/2024]
Abstract
INTRODUCTION
Neuropathological investigation of presymptomatic or early symptomatic presenilin-1 (PSEN1) mutation carriers in familial Alzheimer's disease (AD) is extremely scarce.
METHODS
We report the autopsy findings of brothers with familial AD. Case 1 is a 45-year-old man without obvious cognitive impairment, who committed suicide. Case 2 is a 57-year-old older brother of Case 1 with advanced AD symptoms, who died of hypothermia during wondering.
RESULTS
In both cases, abundant amyloid plaques positive for amyloid β (Aβ) were found throughout the brain. Progression of neuronal loss and increasing amount and extension of neurofibrillary tangle pathology were evident in Case 2. Genetic investigation revealed a PSEN1_p. L392V mutation in both cases.
DISCUSSION
The present study shows a possible neuropathological boundary between symptomatic and preclinical AD with pathogenic PSEN1 mutation. Additional clinicopathological investigation for familial AD-related mutation carriers may be significant to explore the association between familial AD and suicide.
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