Rapid water transfer from extracellular to intracellular spaces following oral ingestion.

IF 3.3 4区医学 Q2 PHYSIOLOGY

Journal of Physiological Sciences Pub Date : 2026-07-10 DOI:10.1016/j.jphyss.2026.100088

Hiroyuki Terawaki, Masahiko Y Kida

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引用次数: 0

Abstract

Research on the effects of oral ingestion on extracellular and intracellular water balance is scarce. To measure the postprandial change in extracellular-intracellular water balance, 28 healthy adults (mean age 39 years, 20 women, 8 men) were recruited, and their extracellular-intracellular water distribution was measured at five time points: immediately before lunch (fasting), immediately after lunch (postprandial), and 30, 60, and 120 min after lunch using a BCM® body composition measuring device (Fresenius Medical Care, Germany). The results did not show significant changes in the total water volume, whereas the extracellular-intracellular distribution ratio decreased significantly from 0.7468 ± 0.0496 during fasting to 0.7376 ± 0.0473 during postprandial periods, which gradually increased over the next 120 min (0.7491 ± 0.0569). The estimated mean postprandial loss of extracellular fluid was 132 mL. Overall, oral ingestion promotes the transient transfer of body water from extracellular to intracellular spaces.

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口服后水分从细胞外迅速转移到细胞内。

关于口服摄入对细胞外和细胞内水分平衡影响的研究很少。为了测量餐后细胞外-细胞内水平衡的变化，招募了28名健康成人（平均年龄39岁，20名女性，8名男性），并使用BCM®体成分测量装置（德国费森尤斯医疗保健公司）在五个时间点测量了他们的细胞外-细胞内水分布：午餐前（禁食），午餐后（餐后），午餐后30,60和120 分钟。结果表明，总水量变化不显著，而细胞外-细胞内分布比从禁食期间的0.7468 ± 0.0496显著下降到餐后的0.7376 ± 0.0473，在接下来的120 min内逐渐升高（0.7491 ± 0.0569）。估计平均餐后细胞外液损失为132 mL。总的来说，口服摄入促进体内水分从细胞外到细胞内的短暂转移。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Physiological Sciences 医学-生理学

CiteScore

4.40

自引率

4.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Physiological Sciences publishes peer-reviewed original papers, reviews, short communications, technical notes, and letters to the editor, based on the principles and theories of modern physiology and addressed to the international scientific community. All fields of physiology are covered, encompassing molecular, cellular and systems physiology. The emphasis is on human and vertebrate physiology, but comparative papers are also considered. The process of obtaining results must be ethically sound. Fields covered: Adaptation and environment Autonomic nervous function Biophysics Cell sensors and signaling Central nervous system and brain sciences Endocrinology and metabolism Excitable membranes and neural cell physiology Exercise physiology Gastrointestinal and kidney physiology Heart and circulatory physiology Molecular and cellular physiology Muscle physiology Physiome/systems biology Respiration physiology Senses.