Association of Advanced Glycation End Products with Cognitive Function: HealthyDance Study

Article type: Research Article

Authors: Deng, Senli^{a; b; 1} | He, Ruikun^{c; 1} | Yue, Zhongbao^c | Li, Benchao^d | Li, Fengping^{a; b} | Xiao, Qing^d | Wang, Xiaoge^{a; b} | Li, Yuanyuan^{a; b} | Chen, Ruilin^{a; b} | Rong, Shuang^{a; b; d; *}

Affiliations: [a] Department of Nutrition and Food Hygiene, School of Public Health, Wuhan University, Wuhan, China | [b] Research Center of Public Health, Renmin Hospital of Wuhan University, Wuhan, China | [c] BYHEALTH Institute of Nutrition and Health, Guangzhou, China | [d] Academy of Nutrition and Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, China

Correspondence: [*] Correspondence to: Shuang Rong, MD, PhD, Department of Nutrition and Food Hygiene, School of Public Health, Wuhan University; Research Center of Public Health, Renmin Hospital of Wuhan University, Wuhan 430071, China. E-mails: [email protected]; [email protected].

Note: [1] These authors contributed equally to this work.

Abstract: Background:The current research on advanced glycosylation end products (AGEs) and cognitive function is limited. Objective:We aimed to investigate the relationship between multiple plasma AGEs and cognitive function and mild cognitive impairment (MCI). Methods:Baseline data from The Lifestyle and Healthy Aging of Chinese Square Dancer Study was used in this cross-sectional study. Ultra-high-performance liquid chromatography tandem mass spectrometry was used to determine plasma levels of carboxymethyl lysine (CML), carboxyethyl lysine (CEL), and methyl imidazolinone (MG-H1). Four cognitive tests were used to obtain the four cognitive domain scores and the composite z scores. The Petersen criteria were used to diagnose MCI. The data were analyzed by multivariable linear and logistic regression models. Results:This study included 1,018 participants (median age 61.0 years, 87.3% female). After multivariate adjustment, the βs of the highest quartile of CML and CEL compared to the lowest quartile were –0.28 (–0.38, –0.17) and –0.13 (–0.23, –0.03), respectively, for the composite z score. For the four cognitive domains, CML was negatively correlated with memory, attention, and executive function, and CEL was negatively associated with memory and language function. In addition, higher CML was associated with a higher odds of MCI. MG-H1 was not associated with cognitive function. Conclusions:High plasma AGE levels were correlated with poorer cognitive function, particularly CML and CEL, higher levels of CML were also associated with higher odds of MCI. To clarify the effects of different AGEs on cognitive function and the underlying mechanisms, further longitudinal and experimental studies are needed.

Keywords: Advanced glycation end products, Alzheimer’s disease, carboxyethyl lysine, carboxymethyl lysine, cognitive function, mild cognitive impairment

DOI: 10.3233/JAD-240296

Journal: Journal of Alzheimer's Disease, vol. 100, no. 2, pp. 551-562, 2024