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A clinical memory battery for screening for amnestic mild cognitive impairment in an elderly chinese population

Shengjie Zhao1, Chunni Guo, Mingqin Wang

  • 1Department of Neurology, Shanghai Jiaotong University Affiliated First People's Hospital, Shanghai 200080, China.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|March 26, 2011
PubMed

Insights

Amnestic mild cognitive impairment (MCI) is accurately identified by neuropsychological tests. APOE-ε4 carriers with MCI performed worse, suggesting a role for APOE in disease progression.

Area of Science:

  • Neurology
  • Neuropsychology
  • Genetics

Background:

  • Amnestic mild cognitive impairment (MCI) is a potential precursor to Alzheimer's disease.
  • Understanding factors influencing MCI progression is crucial for early intervention.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of a neuropsychological test battery for amnestic MCI.
  • To investigate the influence of apolipoprotein E (APOE) genotype on cognitive performance in amnestic MCI.

Main Methods:

  • A cohort of 150 amnestic MCI patients and 150 healthy controls underwent a comprehensive neuropsychological assessment.
  • The Chinese version of the Montreal Cognitive Assessment was validated for reliability, sensitivity, and specificity.
  • Apolipoprotein E (APOE) genotyping was performed on all participants.

Main Results:

  • Amnestic MCI patients demonstrated significantly poorer performance across all neuropsychological tests compared to controls.
  • The test battery accurately distinguished between amnestic MCI and healthy elderly individuals.
  • Within the amnestic MCI group, non-APOE-ε4 carriers outperformed APOE-ε4 carriers.

Conclusions:

  • The employed neuropsychological test set is effective in differentiating amnestic MCI from normal cognition.
  • APOE genotype appears to play a role in the cognitive status of amnestic MCI patients, though its precise influence requires further elucidation.

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