Oct, 1, 2023

Vol.30 No.2, pp. 84-88

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  • Korean Journal of Biological Psychiatry
  • Volume 15(1); 2008
  • Article

Review

Korean Journal of Biological Psychiatry 2008;15(1):29-34. Published online: Jan, 1, 2008

Abstract PDF Full Text

Interaction of Apolipoprotein E ε4 and Education on Cognitive Decline in Korean Elders

  • Jae-Min Kim, MD, PhD1;Il-Seon Shin, MD, PhD1;Sung-Wan Kim, MD, PhD1;Su-Jin Yang, MD, PhD1;Sang-Wook Park, MD1;Hee-Young Shin, MD, PhD2; and Jin-Sang Yoon, MD, PhD1,2;
    1;Department of Psychiatry, Chonnam National University Medical School, Gwangju, 2;Clinical Trial Center, Chonnam National University Hospital, Gwangju, Korea
Abstract

Objectives：This study aimed to test potential modifying effects of education on the association between apolipoprotein E ε4 (Apo E4) and cognitive decline.

Methods：A community cohort(N=683) aged 65 or over completed the Korean version of Mini-Mental State Examination(MMSE-K) at baseline and two years later(1999-2001). Apo E polymorphisms were genotyped, and classified into that with or without Apo E4. Educational levels were categorized into people with or without education. Covariates included demographic(age, gender), life style(smoking, alcohol drinking), clinical (depression, sleep disorder, vascular risk factors) characteristics.

Results：The association between Apo E4 and cognitive decline was significant only in the old persons with no education. The interaction term between education and Apo E4 on cognitive decline was significant (p=0.040).

Conclusion：Elders with no education might be more vulnerable to the impact of Apo E4 on cognitive decline, which suggests gene-environment interaction.

Keywords Cognitive decline;Apolipoprotein E;Education;Elderly;Gene-environment interaction.