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인지예비능의 신경적 기질에 대한 서술적 문헌고찰 연구 : 휴지기 기능적 자기공명영상 연구를 중심으로

A Narrative Literature Review on the Neural Substrates of Cognitive Reserve: Focusing on the Resting-state Functional Magnetic Resonance Imaging Studies

  • 신현상 (상지대학교 한의과대학 해부학교실 ) ;
  • 성우현 (상지대학교 한의과대학 해부학교실 ) ;
  • 권보인 (상지대학교 한의과대학 병리학교실) ;
  • 우연주 (상지대학교 한의과대학 생리학교실) ;
  • 김주희 (상지대학교 한의과대학 침구의학교실) ;
  • 이동혁 (상지대학교 한의과대학 해부학교실)
  • Hyeonsang Shin (Department of Anatomy, College of Korean Medicine, Sangji University) ;
  • Woohyun Seong (Department of Anatomy, College of Korean Medicine, Sangji University) ;
  • Bo-in Kwon (Department of Pathology, College of Korean Medicine, Sangji University) ;
  • Yeonju Woo (Department of Physiology, College of Korean Medicine, Sangji University) ;
  • Joo-Hee Kim (Department of Acupuncture & Moxibustion, College of Korean Medicine, Sangji University) ;
  • Dong Hyuk Lee (Department of Anatomy, College of Korean Medicine, Sangji University)
  • 투고 : 2023.11.16
  • 심사 : 2024.01.17
  • 발행 : 2024.02.25

초록

Cognitive reserve (CR) is a concept that can explain the discrepancies between the pathologic burden of the disease and clinical manifestations. It refers to the individual susceptibility to age-related brain changes and pathologies related to Alzheimer's disease, thus recognized as a factor affecting the trajectories of the disease. The purpose of this study was to explore the current states of clinical studies on neural substrates of CR in Alzheimer's disease using functional magnetic resonance imaging. We searched for clinical studies on CR using fMRI in the Pubmed, Cochrane library, RISS, KISS and ScienceON on August 14, 2023. Once the online search was finished, studies were selected manually by the inclusion criteria. Finally, we analyzed the characteristics of selected articles and reviewed the neural substrates of CR. Total thirty-four studies were included in this study. As surrogate markers of CR, not only education and occupational complexity, but also composite score and questionnaire-based method, which cover various areas of life, were mainly used. The most utilized methods in resting-state fMRI were independent component analysis, seed-based analysis, and graph theory analysis. Through the analysis, we demonstrated that neuroimaging techniques could capture the neural substrates associated with cognitive reserve. Moreover, functional connectivity of brain regions centered on prefrontal and parietal cortex and network areas such as default mode network showed a significant correlation with CR, which indicated a significant association with cognitive performance. CR may induce differential effects according to the disease status. We hope that this perspective on cognitive reserve would be helpful when conducting clinical researches on the mechanisms of traditional Korean medicine for Alzheimer's disease in the future.

키워드

과제정보

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구입니다(No. NRF-2022R1F1A1061004). 또한 2023년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력 기반 지역혁신사업의 결과입니다(2022RIS-005).

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