少女汗液中的甜菜碱含量。
The betaine content of sweat from adolescent females.
机构信息
Danisco A/S, Elmsford, NY, USA.
出版信息
J Int Soc Sports Nutr. 2010 Jan 22;7(1):3. doi: 10.1186/1550-2783-7-3.
BACKGROUND
This study was developed to establish whether betaine was present in the sweat of females and to determine any correlations with other sweat components.
METHODS
Sweat patches were placed on eight trained adolescent Highland dancers (age = 13.6 +/- 2.3 yr), who then participated in a dance class for 2 hours. Patches were removed, and the sweat recovered via centrifugation. The sweat was subsequently analyzed for betaine, choline, sodium, potassium, chloride, lactate, glucose, urea and ammonia.
RESULTS
Betaine was present in the sweat of all subjects (232 +/- 84 mumol.L-1), which is higher than typically found in plasma. The concentration of several sweat components were correlated, in particular betaine with most other measured components.
CONCLUSION
Betaine, an osmoprotectant and methyl donor, is a component of sweat that may be lost from the body in significant amounts.
背景
本研究旨在确定甜菜碱是否存在于女性汗液中，并确定其与其他汗液成分的相关性。
方法
将汗液贴片贴在 8 名经过训练的青少年高地舞者（年龄=13.6 +/- 2.3 岁）身上，然后让他们参加 2 小时的舞蹈课。贴片取下后，通过离心回收汗液。随后分析汗液中的甜菜碱、胆碱、钠、钾、氯、乳酸、葡萄糖、尿素和氨。
结果
所有受试者的汗液中都存在甜菜碱（232 +/- 84 mumol.L-1），高于通常在血浆中发现的水平。一些汗液成分的浓度呈相关性，特别是甜菜碱与大多数其他测量成分。
结论
甜菜碱是一种渗透保护剂和甲基供体，是汗液的成分之一，可能会大量从体内流失。
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