EPISODE · Aug 25, 2026 · 23 MIN
1488-母乳反式真空乳酸重塑新生儿免疫发育
from 聊聊Sci
这份研究主要探讨了母乳中的天然成分反式异油酸 (TVA) 如何通过母体饮食影响新生儿的免疫系统发育。研究发现，母鼠摄入富含 TVA 的饮食后，该分子会通过乳汁传递给幼鼠，从而显著扩张并重塑初级 CD4+ T 细胞群。通过特定的分子通路，TVA 能将新生儿的免疫状态从偏向 Th2 转向更具保护性的 Th1 免疫反应，增强其对流感和沙门氏菌等病原体的抵抗力。这种早期暴露不仅提升了幼年的抗病能力，还产生了长期的免疫印记，使个体在成年后依然拥有更强的抗病毒水平。该成果揭示了单一饮食分子对生命早期免疫稳态的决定性作用，为优化围产期营养提供了科学依据。References:Fan H, Zheng Z, Oliphant K, et al. Maternal trans-vaccenic acid shapes neonatal T cell development and early-life immune imprinting[J]. Science, 2026, 392(6804): eaea4041.前往小宇宙评论区与主播互动
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1488-母乳反式真空乳酸重塑新生儿免疫发育
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