Exercise training induces insulin-sensitizing PAHSAs in adipose tissue of elderly women
Language English Country Netherlands Media print-electronic
Document type Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't
PubMed
31740387
DOI
10.1016/j.bbalip.2019.158576
PII: S1388-1981(19)30227-6
Knihovny.cz E-resources
- Keywords
- Adipose tissue, Elderly women, Ether lipids, Exercise, FAHFA, FAHFA-TG, Lipidomics, Lipokine, Mass spectrometry, Omega-3 fatty acids, PAHSA,
- MeSH
- Exercise physiology MeSH
- Esters metabolism MeSH
- Insulin metabolism MeSH
- Combined Modality Therapy MeSH
- Palmitic Acid metabolism MeSH
- Stearic Acids metabolism MeSH
- Humans MeSH
- Lipidomics MeSH
- Lipogenesis physiology MeSH
- Metabolic Syndrome metabolism physiopathology prevention & control MeSH
- Fatty Acids, Omega-3 administration & dosage MeSH
- Dietary Supplements MeSH
- Aged, 80 and over MeSH
- Aged MeSH
- Aging physiology MeSH
- Adipose Tissue metabolism MeSH
- Treatment Outcome MeSH
- Check Tag
- Humans MeSH
- Aged, 80 and over MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Randomized Controlled Trial MeSH
- Names of Substances
- Esters MeSH
- Insulin MeSH
- Palmitic Acid MeSH
- Stearic Acids MeSH
- Fatty Acids, Omega-3 MeSH
- stearic acid MeSH Browser
Adverse effects of aging can be delayed with life-style interventions. We examined how exercise training (ET) alone or combined with omega-3 polyunsaturated fatty acid (PUFA) affects serum and adipose tissue (AT) lipidome in older women. Fifty-five sedentary older women were included in the physical activity program and given either sunflower (Placebo) or wax esters-rich (Calanus) oil capsules for 4 months. Serum and subcutaneous abdominal AT samples were acquired while maximum rates of oxygen consumption (VO2 max), insulin sensitivity (hyperinsulinemic-euglycemic clamps) and comprehensive lipidome profiles were determined before and after the study. ET increased VO2 max in both groups. Lipidomics profiling revealed unusual serum triacylglycerols and phospholipids with ether-bound alkyls in the Calanus group, while ET generally induced shorter-chain triacylglycerols in AT, suggesting increased de novo lipogenesis. The latter was positively associated with whole-body insulin sensitivity. Unexpectedly, insulin-sensitizing lipokines from the family of branched palmitic acid esters of hydroxy stearic acid (PAHSAs) were elevated in both serum and AT after ET, while PAHSAs-containing triacylglycerols were detected in AT. ET stimulated beneficial changes in AT, including PAHSAs synthesis. Although the added value of omega-3 PUFA supplementation was not proven, our discovery can help understand the nature of the metabolic benefits of exercise.
Institute of Physiology of the Czech Academy of Sciences Videnska 1083 14220 Prague 4 Czech Republic
References provided by Crossref.org
Tissue-specific sex difference in the metabolism of fatty acid esters of hydroxy fatty acids
ClinicalTrials.gov
NCT03386461
