Effects of Two-Week Betaine Supplementation on Apoptosis, Oxidative Stress, and Aerobic Capacity after Exhaustive Endurance Exercise

被引:11
作者
Yang, Ming-Ta [1 ]
Lee, Xiu-Xin [2 ]
Huang, Bo-Huei [3 ]
Chien, Li-Hui [4 ]
Wang, Chia-Chi [5 ]
Chan, Kuei-Hui [4 ]
机构
[1] Taipei Med Univ, Ctr Gen Educ, Taipei 110301, Taiwan
[2] Taipei Med Univ, Dept Primary Care Med, Shuang Ho Hosp, New Taipei 23561, Taiwan
[3] Univ Sydney, Fac Med & Hlth, Charles Perkins Ctr, Sch Hlth Sci, Camperdown, NSW 2006, Australia
[4] Natl Taiwan Sport Univ, Grad Inst Athlet & Coaching Sci, Taoyuan 333325, Taiwan
[5] Natl Taipei Univ Business, Off Phys Educ, Taipei 10051, Taiwan
关键词
lymphocytes; mitochondrial transmembrane potential decline; thiobarbituric acid reactive substance; protein carbonyl; PLASMA HOMOCYSTEINE CONCENTRATIONS; PROTECTS; CHOLINE; DAMAGE; CELLS; LIVER; ANTIOXIDANTS; INFLAMMATION; PERFORMANCE; METABOLISM;
D O I
10.3390/antiox9121189
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
This study evaluated the effects of 2 weeks of betaine supplementation on apoptosis, oxidative stress, and aerobic capacity after exhaustive endurance exercise (EEE). A double-blind, crossover, and counterbalanced design was adopted, with 10 healthy male participants asked to consume betaine (1.25 g of betaine mixed with 300 mL of sports beverage, twice per day for 2 weeks) or placebo (300 mL of sports beverage). All participants performed a graded exercise test on a treadmill to determine the maximal oxygen consumption (VO2max) before supplementation and then performed the EEE test at an intensity of 80% VO2max after 2 weeks of supplementation. The time to exhaustion, peak oxygen consumption, maximal heart rate, and average heart rate were recorded during the EEE test. Venous blood samples were drawn before, immediately after, and 3 h after the EEE test to assess apoptosis and the mitochondrial transmembrane potential (MTP) decline of lymphocytes as well as the concentrations of thiobarbituric acid reactive substance and protein carbonyl. The results indicated that lymphocyte apoptosis was significantly higher immediately after and 3 h after EEE than before exercise in participants in the placebo trial. However, lymphocyte apoptosis exhibited no significant differences among the three time points in participants in the betaine trial. Moreover, apoptosis in the betaine trial was significantly lower immediately after and 3 h after exercise compared with the placebo trial. No differences were noted for other variables. Thus, 2 weeks of betaine supplementation can effectively attenuate lymphocyte apoptosis, which is elevated by EEE. However, betaine supplementation exhibited no effects on MTP decline, oxidative stress, or aerobic capacity.
引用
收藏
页码:1 / 14
页数:14
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