与母乳养的婴儿相比,配方奶粉养的婴儿的疫苗反应更高,但在随机对照试验中没有受到乳酸铁或铁的影响
Maria Björmsjö1, Nina Ekström2, Sven Arne Silfverdal1
1Department of Clinical Sciences, Pediatrics, Umeå University, Umeå, Sweden.
Acta paediatrica (Oslo, Norway : 1992)
|June 27, 2024
概括
低铁婴儿配方奶粉与牛乳酸没有显著改变对常规免疫接种的抗体反应. 然而,吃低铁配方奶粉的婴儿在12个月后表现出更高的Haemophilus influenzae b型 (Hib) 抗体水平.
科学领域:
- 免疫学 免疫学 免疫学
- 儿科 儿科 儿科
- 营养科学 营养科学
背景情况:
- 婴儿配方奶粉的成分,特别是铁含量和牛乳酸等添加剂,可能会影响免疫发育.
- 了解配方修改对抗体反应的影响对于婴儿健康和疫苗接种有效性至关重要.
研究的目的:
- 研究婴儿配方中降低铁含量和添加的牛乳酸对标准免疫接种后抗体水平的影响.
- 为了比较配方奶粉的婴儿与不同配方奶粉成分和母乳养参考组的免疫反应.
主要方法:
- 一项随机对照试验,涉及180名配方婴儿 (6周至6个月),他们被分配给含有或不含牛乳酸的低铁配方,或对照配方 (8毫克/升铁).
- 为了进行比较,包括一个母乳养的参考组 (n=72).
- 血清免疫球蛋白G (IgG) 水平对抗Haemophilus influenzae type b (Hib), diphtheria和结石风的测量是在4个月,6个月和12个月的时间进行的.
主要成果:
- 与那些接受低铁配方奶粉的婴儿相比,在12个月的婴儿体内,Hib IgG水平的几何平均值显著更高.
- 在配方组之间没有观察到喉疫苗和破伤风疫苗IgG水平的显著差异.
- 与配方奶粉养的婴儿相比,在6个月和12个月内,母乳养的婴儿在所有三种疫苗中意外地显示出显著较低的IgG水平.
结论:
- 婴儿配方中铁含量降低可能会增强对Haemophilus influenzae型b (Hib) 疫苗的抗体反应.
- 在低铁配方中补充牛乳酪蛋白并没有显著改变疫苗特定的IgG反应.
- 哺乳婴儿的较低抗体水平需要进一步调查影响生命早期免疫反应的因素.
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