Identification of the Third Case of PSEN1 Tyr389His Variant in Early-Onset Alzheimer's Disease in Korea.

Int J Mol Sci

Department of Neurology, Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul 05368, Republic of Korea.

Published: December 2022


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Article Abstract

Amyloid precursor protein (), presenilin 1 (), and presenilin 2 () are associated with autosomal-dominant early-onset Alzheimer's disease (AD). Most mutations have been identified in the gene. We discovered a mutation (Tyr389His) in a Korean patient with early-onset AD who presented memory decline at 41 years of age followed by language, memory, and visuospatial dysfunctions. As this is the third such patient identified in Korea, this mutation may be involved in AD pathogenesis, suggesting that routine screening is necessary in this population. Altered intra-molecular interactions with the mutated amino acid may result in the destabilization of γ-secretase. In the future, a panel incorporating genes with relatively high-frequency rare variants, along with the gene, may predict the onset of AD and facilitate customized treatment.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9781446PMC
http://dx.doi.org/10.3390/ijms232416192DOI Listing

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