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COVID-19助推剂增强了通过母乳体外进行IgG介导的病毒中和

Vivian Valcarce^1,2, Lauren Stewart Stafford³, Josef Neu¹

¹Department of Pediatrics, University of Florida, Gainesville, FL, United States.

Frontiers in nutrition

|February 26, 2024

概括

接种COVID-19增强剂可显著增加母乳和婴儿便中的中和抗体. 这提高了母乳养婴儿对SARS-CoV-2的免疫保护.

科学领域:

免疫学免疫学免疫学
儿科儿科儿科
病毒学病毒学

背景情况:

由于免疫系统未成熟和疫苗接种选择有限,COVID-19对儿童构成重大风险.
接种疫苗的母亲通过母乳转移SARS-CoV-2抗体,提供体外病毒中和.
这项研究调查了COVID-19增强剂对这些保护性抗体的影响.

研究的目的:

评估COVID-19强剂对人乳,母体血和婴儿便中的SARS-CoV-2抗体度的影响.
评估增强剂对这些体液病毒中和能力的影响.
为了确定抗体水平和中和疗效后的抗体水平之间的相关性.

主要方法:

招募了39名母亲和25名婴儿,在接种疫苗后12个月内收集牛奶,血和便样本.
一个由14名母亲组成的子组接受了COVID-19 mRNA增强剂.
评估了SARS-CoV-2特定抗体水平和体外病毒中和能力.

主要成果:

补充疫苗接种显著提高了母乳和婴儿便中的IgG水平.
在实验室中,SARS-CoV-2代理病毒的中和在血中增加了90%,在乳中增加了60%.
人乳中和后增强剂与SARS-CoV-2IgG水平有很强的相关性,而IgG耗尽减少了中和.

结论:

增强剂量可以显著增强母乳和婴儿便中的中和IgG.
人体牛奶中免疫反应的这种增强可以增加对SARS-CoV-2的保护.
这些发现突显了加强母婴免疫力的重要意义.

关键词:

在 COVID-19 疫情中,在IgG IgG的基础上.抗体是对抗体的重要组成部分.助推器是一个助推器.人类母乳是人类的母乳.中和化中和化中和化便是一个便.

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