1
|
Suzuki Y, Kikuchi K, Numayama-Tsuruta K, Ishikawa T. Reciprocating intestinal flows enhance glucose uptake in C. elegans. Sci Rep 2022; 12:15310. [PMID: 36130988 PMCID: PMC9492717 DOI: 10.1038/s41598-022-18968-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 08/23/2022] [Indexed: 11/09/2022] Open
Abstract
Despite its physiological and pathological importance, the mechanical relationship between glucose uptake in the intestine and intestinal flows is unclear. In the intestine of the nematode Caenorhabditis elegans, the defecation motor program (DMP) causes reciprocating intestinal flows. Although the DMP is frequently activated in the intestines, its physiological function is unknown. We evaluated the mechanical signature of enhanced glucose uptake by the DMP in worms. Glucose uptake tended to increase with increasing flow velocity during the DMP because of mechanical mixing and transport. However, the increase in input energy required for the DMP was low compared with the calorie intake. The findings suggest that animals with gastrointestinal motility exploit the reciprocating intestinal flows caused by peristalsis to promote nutrient absorption by intestinal cells.
Collapse
Affiliation(s)
- Yuki Suzuki
- Graduate School of Engineering, Department of Finemechanics, Tohoku University, 6-6-01 Aramaki, Aoba, Sendai, Miyagi, 980-8579, Japan
| | - Kenji Kikuchi
- Graduate School of Engineering, Department of Finemechanics, Tohoku University, 6-6-01 Aramaki, Aoba, Sendai, Miyagi, 980-8579, Japan. .,Graduate School of Biomedical Engineering, Tohoku University, 6-6-01 Aramaki, Aoba, Sendai, Miyagi, 980-8579, Japan.
| | - Keiko Numayama-Tsuruta
- Graduate School of Biomedical Engineering, Tohoku University, 6-6-01 Aramaki, Aoba, Sendai, Miyagi, 980-8579, Japan
| | - Takuji Ishikawa
- Graduate School of Engineering, Department of Finemechanics, Tohoku University, 6-6-01 Aramaki, Aoba, Sendai, Miyagi, 980-8579, Japan.,Graduate School of Biomedical Engineering, Tohoku University, 6-6-01 Aramaki, Aoba, Sendai, Miyagi, 980-8579, Japan
| |
Collapse
|