Frontiers in Aging Neuroscience (Oct 2022)

Clinical characteristics and genotype-phenotype correlation analysis of familial Alzheimer’s disease patients with pathogenic/likely pathogenic amyloid protein precursor mutations

  • Yingzi Liu,
  • Xuewen Xiao,
  • Hui Liu,
  • Xinxin Liao,
  • Xinxin Liao,
  • Xinxin Liao,
  • Xinxin Liao,
  • Xinxin Liao,
  • Yafang Zhou,
  • Yafang Zhou,
  • Yafang Zhou,
  • Yafang Zhou,
  • Yafang Zhou,
  • Ling Weng,
  • Ling Weng,
  • Ling Weng,
  • Ling Weng,
  • Ling Weng,
  • Lu Zhou,
  • Xixi Liu,
  • Xiang-yun Bi,
  • Tianyan Xu,
  • Yuan Zhu,
  • Qijie Yang,
  • Sizhe Zhang,
  • Xiaoli Hao,
  • Weiwei Zhang,
  • Weiwei Zhang,
  • Weiwei Zhang,
  • Weiwei Zhang,
  • Weiwei Zhang,
  • Junling Wang,
  • Junling Wang,
  • Junling Wang,
  • Junling Wang,
  • Junling Wang,
  • Bin Jiao,
  • Bin Jiao,
  • Bin Jiao,
  • Bin Jiao,
  • Bin Jiao,
  • Lu Shen,
  • Lu Shen,
  • Lu Shen,
  • Lu Shen,
  • Lu Shen,
  • Lu Shen

DOI
https://doi.org/10.3389/fnagi.2022.1013295
Journal volume & issue
Vol. 14

Abstract

Read online

Alzheimer’s disease (AD) is a progressive neurodegenerative disease associated with aging, environmental, and genetic factors. Amyloid protein precursor (APP) is a known pathogenic gene for familial Alzheimer’s disease (FAD), and now more than 70 APP mutations have been reported, but the genotype-phenotype correlation remains unclear. In this study, we collected clinical data from patients carrying APP mutations defined as pathogenic/likely pathogenic according to the American college of medical genetics and genomics (ACMG) guidelines. Then, we reanalyzed the clinical characteristics and identified genotype-phenotype correlations in APP mutations. Our results indicated that the clinical phenotypes of APP mutations are generally consistent with typical AD despite the fact that they show more non-demented symptoms and neurological symptoms. We also performed genotype-phenotype analysis according to the difference in APP processing caused by the mutations, and we found that there were indeed differences in onset age, behavioral and psychological disorders of dementia (BPSD) and myoclonus.

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