Journal
GUT MICROBES
Volume 13, Issue 1, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/19490976.2021.1880221
Keywords
Microbiota; aging; visceral adipose tissue; inflammaging; diet; serum metabolome
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Funding
- European Union's Seventh Framework Programme [266486]
- Russian Ministry of Science and Education [13.1902.21.0026]
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The study identified distinct compositional structures of the elderly gut microbiota associated with DXA parameters, diet, metabolic profiles, and cardio-metabolic risk factors.
Aging is accompanied by physiological changes affecting body composition and functionality, including accumulation of fat mass at the expense of muscle mass, with effects upon morbidity and quality of life. The gut microbiome has recently emerged as a key environmental modifier of human health that can modulate healthy aging and possibly longevity. However, its associations with adiposity in old age are still poorly understood. Here we profiled the gut microbiota in a well-characterized cohort of 201 Italian elderly subjects from the NU-AGE study, by 16S rRNA amplicon sequencing. We then tested for association with body composition from dual-energy X-ray absorptiometry (DXA), with a focus on visceral and subcutaneous adipose tissue. Dietary patterns, serum metabolome and other health-related parameters were also assessed. This study identified distinct compositional structures of the elderly gut microbiota associated with DXA parameters, diet, metabolic profiles and cardio-metabolic risk factors.
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