短期补充高剂量菊粉,能够减少超重者对高热量食物的渴望( 二 )





益生元(红)和安慰剂(蓝)干预下 , 受试者的排便频率(A)、菌群丰富度(B)、均匀度(C)和α多样性(D)


与安慰剂相比 , 益生元使得69条菌群功能通路的相对丰度显著变化 , 包括与碳水化合物、蛋白质和脂肪代谢 , 植物分解或细胞修复相关通路 。


更具体一点的话 , 双歧杆菌属相对丰度的增加与牛磺酸、硒类化合物、烟酸盐和氨基酸代谢通路上调相关 , 与卟啉代谢、类固醇分解和(不饱和)脂肪酸生物合成减少有关 , 乳杆菌属的增加和戈尔多尼巴氏菌的减少与丙酮酸代谢通路上调有关 , 丙酮酸是短链脂肪酸的前体 。


VTA激活的减少与黄酮类和芪类化合物的生物合成、双组分信号转导、生物膜合成、氨基糖和核苷酸糖代谢 , 以及柠檬酸循环等上调有关 。


总的来说 , 在这项概念验证研究中 , 与安慰剂相比 , 14天高剂量的益生元菊粉干预会降低与食物渴望有关的脑区激活 , 同时改变肠道菌群的相对丰度和功能通路 。


研究人员表示 , 他们正在进行一项后续研究 , 探索超6个月的长期高剂量益生元干预对超重和肥胖人群的饮食行为、大脑功能和体重的影响[8



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. Gut. doi: 10.1136/gutjnl-2023-330365
【短期补充高剂量菊粉,能够减少超重者对高热量食物的渴望】[8
https://medicalxpress.com/news/2023-10-plant-derived-nutrients-affect-gut-brain.html