Abstract

The absorption of organic anions and the influence of these anions on the movement of HCO3- were studied in vivo in rat colon using a perfusion technique. The absorption of short chain fatty acids (SCFA's) such as acetate, propionate, and butyrate was much greater than that of succinate or lactate. With increasing initial concentration of SCFA up to 100 mmol . 1-1, SCFA absorption increased linearly in correspondence with HCO3- appearance. Final pCO2 level of the perfusion solution with SCFA was the same as the plasma level. Among the SCFA's, no significant differences in absorption or their effects on HCO3- appearance were observed. The presence of Na+ stimulated SCFA absorption, and the maximum value was obtained at more than 100 mmol . 1-1 of Na+. These results suggest that a specific system for HCO3- secretion activated by SCFA exists in the colon, and that this system may control the intraluminal pH by the alkalization of intestinal contents.

Keywords

ArtHumanities

Related Publications

Model-Model Pembelajaran

Marde Christian Stenly Mawikere

Learning and learning models are always changing according to the times and changes in social transformation because time always points forward. Even so, the nature and existenc...

2022 EDULEAD Journal of Christian Educatio... 1016 citations

Publication Info

Year
2010
Type
article
Volume
379
Issue
2006
Pages
142-143
Citations
0
Access
Closed

External Links

View on DOI.org

Social Impact

Altmetric
PlumX Metrics

Social media, news, blog, policy document mentions

Citation Metrics

0
OpenAlex

Cite This

Antonio Trashorras (2010). Aluvión de sustos: 43º Festival de Cinema Fantàstic de Sitges. Fotogramas & DVD: La primera revista de cine , 379 (2006) , 142-143. https://doi.org/10.1007/bf00622903

Identifiers

DOI
10.1007/bf00622903