Evidence map›Paper›PMID 23497725›Full record

ArticleFluids and barriers of the CNS2013

Na,K-ATPase alpha isoforms at the blood-cerebrospinal fluid-trigeminal nerve and blood-retina interfaces in the rat.

Xianghong Arakaki, Paige McCleary, Matthew Techy, Jiarong Chiang, Linus Kuo, Alfred N Fonteh, Brian Armstrong, Dan Levy, Michael G Harrington

Open access · goldAbstract read
In one paragraph

Article in Fluids and barriers of the CNS, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.6field-weighted citation impact, top 31% 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

11 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Deficiency of Thyroid Hormone Reduces Voltage-Gated NaInternational journal of molecular sciences · 2022
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Pivotal role of α2 NaThe Journal of physiology · 2016
    Review
  10. Article
  11. The age-regulating protein klotho is vital to sustain retinal function.Investigative ophthalmology & visual science · 2013
    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

9 authors at 3 institutions in 1 country.

Xianghong ArakakiMolecular Neurology Program, Huntington Medical Research Institutes, 99 N, El Molino Avenue, Pasadena, CA, 91101, USA. mghworks@hmri.org.
Paige McCleary
Matthew Techy
Jiarong Chiang
Linus Kuo
Alfred N Fonteh
Brian Armstrong
Dan Levy
Michael G Harrington
Huntington Medical Research Institutes · USCity of Hope · USHarvard University · US

Funding

Dysfunction of Sodium Homeostasis in MigraineR01NS072497 · NINDS · HUNTINGTON MEDICAL RESEARCH INSTITUTES · PI ARAKAKI, XIANGHONG, GRANT, SAMUEL COLLES · 2011 to 2023
$4.8M
Clinical and molecular pathophysiology of headacheR01NS043295 · NINDS · HUNTINGTON MEDICAL RESEARCH INSTITUTES · PI HARRINGTON, MICHAEL GORDON · 2003 to 2006
$1.4M
NINDS NIH HHS R01 NS043295NINDS NIH HHS R01 NS072497
6 · The paper itself

Abstract

backgroundCerebrospinal fluid (CSF) sodium concentration increases during migraine attacks, and both CSF and vitreous humor sodium increase in the rat migraine model. The Na,K-ATPase is a probable source of these sodium fluxes. Since Na,K-ATPase isoforms have different locations and physiological roles, our objective was to establish which alpha isoforms are present at sites where sodium homeostasis is disrupted.

methodsSpecific Na,K-ATPase alpha isoforms were identified in rat tissues by immunohistochemistry at the blood-CSF barrier at the choroid plexus, at the blood-CSF-trigeminal barrier at the meninges, at the blood-retina barrier, and at the blood-aqueous barrier at the ciliary body. Calcitonin gene-related peptide (CGRP), occludin, or von Willibrand factor (vWF) were co-localized with Na,K-ATPase to identify trigeminal nociceptor fibers, tight junctions, and capillary endothelial cells respectively.

resultsThe Na,K-ATPase alpha-2 isoform is located on capillaries and intensely at nociceptive trigeminal nerve fibers at the meningeal blood-CSF-trigeminal barrier. Alpha-1 and -3 are lightly expressed on the trigeminal nerve fibers but not at capillaries. Alpha-2 is expressed at the blood-retina barriers and, with alpha-1, at the ciliary body blood aqueous barrier. Intense apical membrane alpha-1 was associated with moderate cytoplasmic alpha-2 expression at the choroid plexus blood-CSF barrier.

conclusionNa,K-ATPase alpha isoforms are present at the meningeal, choroid plexus, and retinal barriers. Alpha-2 predominates at the capillary endothelial cells in the meninges and retinal ganglion cell layer.

Identifiers

PMID23497725
PMCPMC3636111
OpenAlexW2107327228

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.