Evidence map›Paper›PMID 8414909›Full record

ArticlePflugers Archiv : European journal of physiology1993

Effect of short-chain fatty acids on cell volume and intracellular pH in rat distal colon.

M Diener, C Helmle-Kolb, H Murer, E Scharrer

Abstract read
PubMed Publisher
In one paragraph

Article in Pflugers Archiv : European journal of physiology, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.8field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
  2. Involvement of butyrate in electrogenic KPflugers Archiv : European journal of physiology · 2019
    Article
  3. Review
  4. Review
  5. Ischemic post-conditioning to counteract intestinal ischemia/reperfusion injury.World journal of gastrointestinal pathophysiology · 2010
    Article
  6. Article
  7. Fluid absorption in isolated perfused colonic crypts.The Journal of clinical investigation · 1995
    Article
  8. Article
  9. Extracellular pH regulation in microdomains of colonic crypts: effects of short-chain fatty acids.Proceedings of the National Academy of Sciences of the United States of America · 1995
    Article
  10. Article
  11. Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

M DienerInstitut für Veterinär-Physiologie, Universität Zürich, Switzerland.
C Helmle-Kolb
H Murer
E Scharrer
University of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Superfusion of isolated crypts from the rat colon with sodium-butyrate-containing solutions induced an increase in the crypt diameter indicating a swelling of the crypt cells. The response to butyrate (50 mmol l-1) was not uniform along the crypt axis, the most pronounced swelling being observed in the upper third of the crypt. The butyrate effect was concentration-dependent and was completely suppressed by amiloride, suggesting that it is caused by activation of the Na+/H+ exchanger. Acetate, propionate and isobutyrate had a similar action. In HEPES-buffered solution the butyrate-induced change in cell volume was monophasic, i. e. only a swelling took place, whereas in HCO3- buffer it was biphasic, i. e. swelling was followed by a regulatory volume decrease. This decrease was suppressed by K+ and Cl- channel blockers as well as inhibitors of leukotriene synthesis. Measurements of intracellular pH with the fluorescent dye 2',7'-bis(2-carboxyethyl)-5(6)-carboxyfluorescein (BCECF) revealed that butyrate induced an acidification of the cell, which was stronger in HEPES than in HCO3- buffer. Estimation of Na+/H+ exchange activity, tested as recovery of intracellular pH from an acid load via an NH4Cl prepulse, revealed a much lower Na+/H+ exchange activity in the fundus region compared to the upper third of the crypt. The smaller volume response evoked by butyrate in the fundus region probably reflects the smaller Na+/H+ activity compared to the more differentiated cells near the opening of the crypt. It is concluded that cell swelling caused by short-chain fatty acids is a physiological stimulus for volume regulation. This response is restricted to the more differentiated cells.

Indexed as

AnimalsArachidonic AcidButyratesButyric AcidChloride ChannelsColonFatty AcidsFemaleFluoresceinsHydrogen-Ion ConcentrationIn Vitro TechniquesPotassium ChannelsRatsRats, Inbred StrainsSodium-Hydrogen Exchangers2',7'-bis(carboxyethyl)-5(6)-carboxyfluoresceinArachidonic AcidButyratesButyric AcidChloride ChannelsFatty AcidsFluoresceinsPotassium ChannelsSodium-Hydrogen Exchangers

Identifiers

PMID8414909
OpenAlexW2008347160

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.