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Postoperative cognitive dysfunction in the aged: the collision of neuroinflammaging with perioperative neuroinflammation

  • AiLin Luo
  • Jing Yan
  • XiaoLe Tang
  • YiLin Zhao
  • BiYun Zhou
  • ShiYong LiEmail author
Review article
  • 52 Downloads

Abstract

The aging population is burgeoning globally and this trend presents great challenges to the current healthcare system as the growing number of aged individuals receives procedures of surgery and anesthesia. Postoperative cognitive dysfunction (POCD) is a severe postoperative neurological sequela. Advanced age is considered as an independent risk factor of POCD. Mounting evidence have shown that neuroinflammation plays an essential role in POCD. However, it remains debatable why this complication occurs highly in the aged individuals. As known, aging itself is the major common high-risk factor for age-associated disorders including diabetes, cardiovascular disease, cancer, and neurodegenerative diseases. Chronic low-grade neuroinflammation (dubbed neuroinflammaging in the present paper) is a hallmark alternation and contributes to age-related cognitive decline in the normal aging. Interestingly, several lines of findings show that the neuroinflammatory pathogenesis of POCD is age-dependent. It suggests that age-related changes, especially the neuroinflammaging, are possibly associated with the postoperative cognitive impairment. Understanding the role of neuroinflammaging in POCD is crucial to elucidate the mechanism of POCD and develop strategies to prevent or treat POCD. Here the focus of this review is on the potential role of neuroinflammaging in the mechanism of POCD. Lastly, we briefly review promising interventions for this neurological sequela.

Keywords

POCD Aging Neuroinflammation Surgery Anesthesia 

Notes

Acknowledgements

The present work was supported by grants from the National Natural Science Foundation of China (Grant No. 81400882 to Shiyong Li, Grant Nos. 81771159, 81571047 and 81271233 to Ailin Luo, Grant No. 8150051085 to Yilin Zhao), Science and Technology Projects of Wuhan (Grant Number 2015060101010036 to Ailin Luo) and also supported by 2010 Clinical Key Disciplines Construction Grant from the Ministry of Health of China (Grant to Anesthesiology Disciplines of Tongji medical college).

Compliance with ethical standards

Conflict of interest

The authors have no conflicts of interest to disclose.

Supplementary material

10787_2018_559_MOESM1_ESM.pptx (458 kb)
Supplementary material 1 (PPTX 458 kb)

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Anesthesiology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina

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