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Nutrients 2017, 9(11), 1199; doi:10.3390/nu9111199

Anserine/Carnosine Supplementation Suppresses the Expression of the Inflammatory Chemokine CCL24 in Peripheral Blood Mononuclear Cells from Elderly People

1
Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka 812-8581, Japan
2
Department of Applied Biochemistry, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
3
Integrative Brain Imaging Center (IBIC), National Center of Neurology and Psychiatry, Tokyo 187-8551, Japan
4
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8562, Japan
These authors contributed equally to this paper.
*
Author to whom correspondence should be addressed.
Received: 7 August 2017 / Revised: 16 October 2017 / Accepted: 27 October 2017 / Published: 31 October 2017
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Abstract

Our goal was to determine whether anserine/carnosine supplementation (ACS) suppresses chemokine levels in elderly people. In a double-blind randomized controlled trial, volunteers were assigned to the ACS or placebo group (1:1). Sixty healthy elderly volunteers (active, n = 30; placebo, n = 30) completed the study. The ACS group was administered 1.0 g of anserine/carnosine (3:1) for 3 months. A microarray analysis and subsequent quantitative real-time polymerase chain reaction (qRT-PCR) analysis of peripheral blood mononuclear cells (PBMCs) showed decreased expression of CCL24, an inflammatory chemokine (p < 0.05). Verbal memory, assessed using the Wechsler memory scale–logical memory, was preserved in the ACS group. An age-restricted sub-analysis showed significant verbal memory preservation by ACS in participants who were in their 60s (active, n = 12; placebo, n = 9; p = 0.048) and 70s (active, n = 7; placebo, n = 11; p = 0.017). The suppression of CCL24 expression was greatest in people who were in their 70s (p < 0.01). There was a significant correlation between the preservation of verbal memory and suppression of CCL24 expression in the group that was in the 70s (Poisson correlation, r = 0.46, p < 0.05). These results suggest that ACS may preserve verbal episodic memory, probably owing to CCL24 suppression in the blood, especially in elderly participants. View Full-Text
Keywords: Alzheimer’s disease; verbal memory; cognitive function; anserine and carnosine; RCT; elderly people; inflammatory chemokine; CCL24 Alzheimer’s disease; verbal memory; cognitive function; anserine and carnosine; RCT; elderly people; inflammatory chemokine; CCL24
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MDPI and ACS Style

Katakura, Y.; Totsuka, M.; Imabayashi, E.; Matsuda, H.; Hisatsune, T. Anserine/Carnosine Supplementation Suppresses the Expression of the Inflammatory Chemokine CCL24 in Peripheral Blood Mononuclear Cells from Elderly People. Nutrients 2017, 9, 1199.

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