Evidence map›Paper›PMID 25027385›Full record

ArticlePflugers Archiv : European journal of physiology2015

Sodium selective erythrocyte glycocalyx and salt sensitivity in man.

Hans Oberleithner

Open access · hybridAbstract read
In one paragraph

Article in Pflugers Archiv : European journal of physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Sodium-induced inflammation-an invisible player in resistant hypertension.Hypertension research : official journal of the Japanese Society of Hypertension · 2020
    Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Benefit-Risk Assessment of Crataegus Extract WS 1442: An Evidence-Based Review.American journal of cardiovascular drugs : drugs, devices, and other interventions · 2018
    Review
  12. Article
  13. Salt controls endothelial and vascular phenotype.Pflugers Archiv : European journal of physiology · 2015
    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

1 author at 1 institution in 1 country.

Hans OberleithnerInstitute of Physiology II, University of Münster, Robert-Koch-Str. 27b, 48149, Münster, Germany, oberlei@uni-muenster.de.
University of Münster · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Negatively charged surfaces of erythrocytes (RBC) reflect properties of the endothelial glycocalyx. Plasma electrolytes counteract these charges and thus control the repulsive forces between RBC and endothelium. Although Na(+) is supposed to exert a rather high affinity to the RBC surface, a direct comparison between Na(+) and K(+) in counteracting the RBC surface has been never made. Therefore, we measured Na(+)/K(+) selectivity of the RBC surface in 20 healthy volunteers applying the previously published salt blood test (SBT). It turned out that the Na(+)/K(+) selectivity ratio of the RBC glycocalyx is on average 6.1 ± 0.39 (ranging from 3 to 9 in different individuals). Considering standard plasma Na(+) and K(+) concentrations, binding probability of Na(+)/K(+) at the RBC surface is about 180:1. The SBT reveals that plasma K(+) counteracts only about 7% of the negative charges in the RBC glycocalyx. As an in vivo proof of principle, a volunteer's blood was continuously tested over 6 months while applying a glycocalyx protective polyphenol-rich natural compound (hawthorn extract). It turned out that RBC Na(+) sensitivity (the inverse of Na(+) buffer capacity) decreased significantly by about 25% while Na(+)/K(+) selectivity of the RBC glycocalyx declined only slightly by about 8 %. Taken together, (i) plasma Na(+) selectively buffers the negative charges of the RBC glycocalyx, (ii) the contribution of K(+) in counteracting these negative surface charges is small, and (iii) natural polyphenols applied in vivo increase RBC surface negativity. In conclusion, low plasma Na(+) is supposed to favor frictionless RBC-slipping through blood vessels.

Indexed as

Cell MembraneCells, CulturedCrataegusErythrocytesGlycocalyxHumansPlant ExtractsPolyphenolsPotassiumSodiumStatic ElectricityYoung AdultPlant ExtractsPolyphenolsPotassiumSodium

Identifiers

PMID25027385
PMCPMC4435639
OpenAlexW1979865396

What OpenQuestion holds

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LicenceCC BY
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.