用口服奎尔丁补充剂进行免疫预调和COVID-19 mRNA疫苗反应:一个随机,双盲,安慰剂控制的随机试验
Shokichi Takahama1, Takuto Nogimori1, Aiko Tanaka2
1Laboratory of Precision Immunology, Center for Intractable Diseases and ImmunoGenomics, National Institutes of Biomedical Innovation, Health, and Nutrition and Nutrition, Osaka 567-0085, Japan.
The Journal of nutrition
|February 27, 2026
概括
在mRNA疫苗接种之前补充奎尔丁糖化物 (QG) 并没有显著改善免疫反应或减少老年人的反应. 这项研究发现QG耐受性很好,对抗体或T细胞对SARS-CoV-2助推剂的反应没有显著影响.
科学领域:
- 免疫学 免疫学 免疫学
- 营养科学 营养科学
- 老年学是指老年学的学科.
背景情况:
- 衰老和代谢条件,如与肥胖相关的糖尿病,是严重的SARS-CoV-2结果和可变的疫苗反应的危险因素.
- 老年人或代谢障碍患者的疫苗反应能力仍然令人担忧,尽管疫苗接种有好处.
研究的目的:
- 在老年或代谢风险人群中检查mRNA疫苗接种前补充奎尔丁糖化物 (QG) 的效果.
- 评估QG对免疫反应和疫苗相关反应的影响,重点关注抗体标位和T细胞激活.
主要方法:
- 这是一项随机,双盲,安慰剂控制的研究,涉及50名参与者,在mRNA SARS-CoV-2增强剂之前,接受QG或安慰剂4周.
- 在接种疫苗后3个月评估了免疫特征,使用线性混合效应模型分析了抗体标位和抗原特异性T细胞激活.
- 共变量包括年龄,性别和BMI,评估了与疫苗相关的局部和全身反应.
主要成果:
- 无论是QG组还是安慰剂组,都显示疫苗诱导的抗体反应在增强剂后显著增加.
- 在中和抗体标位,高峰特异性IgG或高峰特异性CD4+和CD8+T细胞反应方面没有发现显著差异.
- 与疫苗相关的反应,包括局部和全身反应,在QG和安慰剂组之间是可比的.
结论:
- 口服QG补充剂在研究的人群中没有显著改变mRNA SARS-CoV-2疫苗接种的免疫性或反应性.
- 补充QG的耐受性很好,在QG组中,较小的,非显著的趋势是QG组中较低的峰值温度反应.
- 这些发现表明,QG在老年人或代谢风险人群中不会提高疫苗的有效性,这突显了试验的探索性质.
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