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J Gerontol A Biol Sci Med Sci. 2018 Oct 11. doi: 10.1093/gerona/gly233. [Epub ahead of print]

Advanced Glycation End Product Accumulation Is Associated With Low Skeletal Muscle Mass, Weak Muscle Strength, and Reduced Bone Density: The Nagahama Study.

Author information

1
Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Japan.
2
Department of Physical Therapy, Human Health Sciences, Kyoto University Graduate School of Medicine, Japan.
3
Sharp Life Science Corporation, Nara, Japan.
4
Department of Medical Ethics and Medical Genetics, Kyoto University School of Public Health, Japan.
5
Department of Health Informatics, Kyoto University School of Public Health, Japan.

Abstract

Background:

The accumulation of advanced glycation end product (AGE) might exert deleterious effects on musculoskeletal properties. Our study aims to clarify this possible association in a large general population.

Methods:

This study investigated a general population of 9,203 patients (mean age, 57.8 years). Skeletal muscle mass was measured by bioelectrical impedance analysis, whereas accumulation of AGEs was assessed by skin autofluorescence (SAF-AGE). The muscle strength of upper and lower limbs and usual gait speed were measured in a portion of older (≥60 years of age) participants (n = 1,934). The speed of sound (SOS) in the calcaneal bone was assessed via a quantitative ultrasound technique.

Results:

In the total population, the frequency of low skeletal muscle mass linearly increased with the SAF-AGE quartiles (Q1: 14.2%, Q2: 16.1%, Q3: 21.1%, Q4: 24.8%; p < .001), and this association was independent of covariates including glycemic traits (Q4: odds ratio [OR] = 1.48, p < .001). The association between the highest SAF-AGE quartile and low skeletal muscle mass remained significant in the older subpopulation (OR = 1.85, p = .002). A similar but weak association was observed for low SOS (Q1: 8.9%, Q2: 8.3%, Q3: 10.4%, Q4: 12.2%; p < .001). Similar inverse associations were also observed with grip strength (OR = 1.98, p = .003), hip flexion strength (OR = 1.50, p = .012), and hip abduction strength (OR = 1.78, p = .001), but not with usual gait speed.

Conclusion:

Accumulation of AGEs might be a deleterious factor for musculoskeletal properties.

PMID:
30329028
DOI:
10.1093/gerona/gly233

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