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Aging and plasma triglyceride metabolism
Journal article   Open access   Peer reviewed

Aging and plasma triglyceride metabolism

Kathryn M. Spitler and Brandon S. J. Davies
Journal of lipid research, Vol.61(8), pp.1161-1167
08/01/2020
DOI: 10.1194/jlr.R120000922
PMCID: PMC7397742
PMID: 32586846
url
https://doi.org/10.1194/jlr.R120000922View
Published (Version of record) Open Access

Abstract

The risk for metabolic disease, including metabolic syndrome, insulin resistance, and diabetes, increases with age. Altered plasma TG metabolism and changes in fatty acid partitioning are also major contributors to metabolic disease. Plasma TG metabolism itself is altered by age in humans and rodents. As discussed in this review, the age-induced changes in human TG metabolism include increased plasma TG levels, reduced postprandial plasma TG clearance rates, reduced postheparin LPL activity, decreased adipose tissue lipolysis, and elevated ectopic fat deposition, all of which could potentially contribute to age-associated metabolic diseases. Similar observations have been made in aged rats. We highlight the limitations of currently available data and propose that mechanistic studies are needed to understand the extent to which age-induced alterations in TG metabolism contribute to metabolic disease. Such mechanistic insights could aid in therapeutic strategies for preventing or managing metabolic disease in older individuals.
Biochemistry & Molecular Biology Life Sciences & Biomedicine Science & Technology

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