Istituto Scientifico, Hosp. San Raffaele, Milan, Italy.
Amino Acids. 1993 Feb;5(1):17-21. doi: 10.1007/BF00806188.
The purpose of this study was to investigate H(e) concentration in plasma from 80 healthy donors in relation to age (6 newborns are also included), sex, daily variation (9, 11 a.m.; 2, 6, 12 p.m.) and a period of 5 subsequent months. A significant correlation (r = 0.63, p < 0.001) was observed between plasma H(e) and age and a statistical difference (p < 0.05) was found between female and male. No circadian rhythm or significant variations over 5 months were found.
本研究旨在探讨 80 名健康供体的血浆中 H(e)浓度与年龄（包括 6 名新生儿）、性别、日变化（上午 9 点和 11 点；下午 2 点、6 点和 12 点）以及随后 5 个月的关系。观察到血浆 H(e)与年龄之间存在显著相关性（r = 0.63，p < 0.001），并且在女性和男性之间发现了统计学差异（p < 0.05）。未发现昼夜节律或 5 个月内的显著变化。
