Evidence map›Paper›PMID 16868676›Full record

ArticleThe Journal of membrane biology2006

AQP and the control of fluid transport in a salivary gland.

M Murakami, K Murdiastuti, K Hosoi, A E Hill

Abstract read
PubMed Publisher
In one paragraph

Article in The Journal of membrane biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.5field-weighted citation impact, top 20% 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

21 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Physiological role of aquaporin 5 in salivary glands.Pflugers Archiv : European journal of physiology · 2016
    Review
  5. Aquaporins in Salivary Glands: From Basic Research to Clinical Applications.International journal of molecular sciences · 2016
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Water-transporting proteins.The Journal of membrane biology · 2010
    Review
  16. Dynamic regulation of barrier integrity of the corneal endothelium.Optometry and vision science : official publication of the American Academy of Optometry · 2010
    Review
  17. Article
  18. Fluid transport: a guide for the perplexed.The Journal of membrane biology · 2008
    Review
  19. Interaction between transcellular and paracellular water transport pathways through Aquaporin 5 and the tight junction complex.Proceedings of the National Academy of Sciences of the United States of America · 2007
    Article
  20. Review
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 2 institutions in 3 countries.

M MurakamiCenter for Integrative Bioscience, NIPS, National Institute for Natural Sciences, Myoudaiji, Okazaki 444-8787, Japan.
K Murdiastuti
K Hosoi
A E Hill
Tokushima University · JPUniversity of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Experiments were performed with the perfused rat submandibular gland in vitro to investigate the nature of the coupling between transported salt and water by varying the osmolarity of the source bath and observing the changes in secretory volume flow. Glands were submitted to hypertonic step changes by changing the saline perfusate to one containing different levels of sucrose. The flow rate responded by falling to a lower value, establishing a new steady-state flow. The rate changes did not correspond to those expected from a system in which fluid production is due to simple osmotic equilibration, but were much larger. The changes were fitted to a model in which fluid production is largely paracellular, the rate of which is controlled by an osmosensor system in the basal membrane. The same experiments were done with glands from rats that had been bred to have very low levels of AQP5 (the principal aquaporin of the salivary acinar cell) in which little AQP5 is expressed at the basal membrane. In these rats, salivary secretion rates after hypertonic challenges were small and best modelled by simple osmotic equilibration. In rats which had intermediate AQP5 levels the changes in flow rate were similar to those of normal rats although their AQP5 levels were reduced.Finally, perfused normal glands were subject to retrograde ductal injection of salines containing different levels of Hg(2+) ions (0, 10 and 100 microM: ) which would act as inhibitors of AQP5 at the apical acinar membrane. The overall flow rates were progressively diminished with rising Hg(2+) concentration, but after hypertonic challenge the changes in flow rates were unchanged and similar to those of normal rats. All these results are difficult to explain by a cellular osmotic model but can be explained by a model in which paracellular flow is controlled by an osmosensor (presumably AQP5) present on the basal membrane.

Indexed as

Models, BiologicalAnimalsAquaporin 5Biological TransportCell Membrane PermeabilityMercuryOrgan Culture TechniquesOsmolar ConcentrationPerfusionRatsRats, Sprague-DawleySalivationSubmandibular GlandAquaporin 5Mercury

Identifiers

PMID16868676
OpenAlexW2002335276

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.