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Exercise training induces insulin-sensitizing PAHSAs in adipose tissue of elderly women.
Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids ( IF 3.9 ) Pub Date : 2019-11-16 , DOI: 10.1016/j.bbalip.2019.158576
Marie Brezinova 1 , Tomas Cajka 1 , Marina Oseeva 1 , Marek Stepan 2 , Klara Dadova 3 , Lenka Rossmeislova 4 , Milos Matous 4 , Michaela Siklova 4 , Martin Rossmeisl 1 , Ondrej Kuda 1
Affiliation  

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.

中文翻译:

运动训练在老年妇女的脂肪组织中诱导胰岛素敏感性PAHSA。

可以通过生活方式干预来延缓衰老的不良影响。我们研究了单独的运动训练(ET)或与omega-3多不饱和脂肪酸(PUFA)结合使用如何影响老年妇女的血清和脂肪组织(AT)脂质组。五十五名久坐的老年妇女参加了体育锻炼计划,并给予向日葵(安慰剂)或富含蜡酯的(Calanus)油胶囊四个月。采集血清和皮下腹部AT样品,同时在研究前后确定最大耗氧率(VO2 max),胰岛素敏感性(高胰岛素-正常血糖钳夹)和综合脂质组图谱。ET两组均增加了最大摄氧量。脂质组学分析显示,在Calanus组中存在异常的血清三酰基甘油和磷脂,以及与醚结合的烷基,而ET通常会在AT中诱导短链三酰基甘油,提示从头脂肪形成增加。后者与全身胰岛素敏感性呈正相关。出乎意料的是,ET后血清和AT均升高了羟基硬脂酸支链棕榈酸酯(PAHSAs)家族的胰岛素敏感性脂因子,而AT中却检测到了含PAHSAs的三酰基甘油。ET刺激了AT的有益变化,包括PAHSA的合成。尽管尚未证明补充omega-3 PUFA的附加价值,但我们的发现可以帮助理解运动的代谢益处的性质。ET后,血清和AT均升高了羟基硬脂酸支链棕榈酸酯家族(PAHSA)的胰岛素敏感性脂因子,而AT中检测到了含PAHSAs的三酰基甘油。ET刺激了AT的有益变化,包括PAHSA的合成。尽管尚未证明补充omega-3 PUFA的附加价值,但我们的发现可以帮助理解运动的代谢益处的性质。ET后,血清和AT均升高了羟基硬脂酸支链棕榈酸酯家族(PAHSA)的胰岛素敏感性脂因子,而AT中检测到了含PAHSAs的三酰基甘油。ET刺激了AT的有益变化,包括PAHSA的合成。尽管尚未证明补充omega-3 PUFA的附加价值,但我们的发现可以帮助理解运动的代谢益处的性质。
更新日期:2019-11-16
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