Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
NPJ Syst Biol Appl. 2022 Feb 8;8(1):6. doi: 10.1038/s41540-022-00213-0.
Oral glucose ingestion induces systemic changes of many blood metabolites related not only to glucose, but also other metabolites such as amino acids and lipids through many blood hormones. However, the detailed temporal changes in the concentrations of comprehensive metabolites and hormones over a long time by oral glucose ingestion are uncharacterized. We measured 83 metabolites and 7 hormones in 20 healthy human subjects in response to glucose ingestion. We characterized temporal patterns of blood molecules by four features: (i) the decomposability into "amplitude" and "rate" components, (ii) the similarity of temporal patterns among individuals, (iii) the relation of molecules over time among individuals, and (iv) the similarity of temporal patterns among molecules. Glucose and glucose metabolism-related hormones indicated a rapid increase, and citrulline and lipids, which indicated a rapid decrease, returned to fasting levels faster than amino acids. Compared to glucose metabolism-related molecules and lipids, amino acids showed similar temporal patterns among individuals. The four features of temporal patterns of blood molecules by oral glucose ingestion characterize the differences among individuals and among molecules.
口服葡萄糖摄入会引起许多血液代谢物的系统性变化,这些代谢物不仅与葡萄糖有关,还与氨基酸和脂质等其他代谢物有关,这是通过许多血液激素实现的。然而,口服葡萄糖摄入后长时间内综合代谢物和激素浓度的详细时间变化尚不清楚。我们测量了 20 名健康人体对葡萄糖摄入的 83 种代谢物和 7 种激素。我们通过四个特征来描述血液分子的时间模式:(i)可分解为“幅度”和“速率”成分,(ii)个体之间时间模式的相似性,(iii)个体之间分子随时间的关系,以及(iv)分子之间时间模式的相似性。葡萄糖和葡萄糖代谢相关激素迅速增加,而精氨酸和脂质迅速减少,恢复到空腹水平的速度快于氨基酸。与葡萄糖代谢相关的分子和脂质相比,氨基酸在个体之间表现出相似的时间模式。口服葡萄糖摄入后血液分子时间模式的四个特征描述了个体之间和分子之间的差异。