在年轻,身体活跃的女性中比较17β-雌激醇和孕激素度:来自血与血清分析的见解
Samantha N Rowland1, Mariasole Da Boit2, Rachel Tan3
1Women in Sport Research and Innovation Hub, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.
Experimental physiology
|March 13, 2025
概括
采血管类型会影响女性的卵巢激素测量. 乙烯基二胺三酸 (EDTA) 血显示17β-雌激醇和孕激素水平高于血清,需要进行调整以准确分类参与者.
科学领域:
- 生殖内分泌学 生殖内分泌学
- 临床化学 临床化学
- 生物标记分析 生物标记分析
背景情况:
- 血清激素测量对于评估月经周期和避孕药的使用至关重要.
- 现有的免疫测试通常允许使用具有相似参考范围的各种生物流体.
- 血液采集管化学对年轻女性激素水平的影响仍未得到研究.
研究的目的:
- 研究血液采集管化学对年轻,身体活跃的女性17β-雌激醇和孕度的影响.
- 为了比较血和血清中测量到的乙烯基二胺三酸 (EDTA) 激素水平.
主要方法:
- 从25名身体活跃的女性中采集了静脉血液样本,使用EDTA和血清真空容器.
- 17β-雌激醇和孕激素度使用竞争性免疫酶分析量化.
主要成果:
- 与血清 (28.25 pg/ml) 相比,EDTA血中17β-雌激醇度的中位数在血中高出44.2% (40.75 pg/ml).
- 与血清 (0.95 ng/ml) 相比,EDTA血中的中位孕激素度在血中高出78.9% (1.70 ng/ml).
- 两种激素在血和血清之间发现了强烈的正相关性 (雌激醇r=0.72,孕激素r=0.89),一致性很好.
结论:
- 卵巢激素水平在EDTA血中始终高于血清中,这表明这些矩阵之间的结果不等价.
- 尽管度差异很大,但EDTA血和血清都适合用于生物标志物分析,因为它们之间存在很强的相关性.
- 研究人员必须考虑EDTA血中较高的激素度,并为准确的参与者分类做出必要的调整.
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