Evidence map›Paper›PMID 25476662›Full record

ArticleMicrocirculation (New York, N.Y. : 1994)2015

Heterogeneity in Kv7 channel function in the cerebral and coronary circulation.

Sewon Lee, Yan Yang, Miles A Tanner, Min Li, Michael A Hill

Open access · greenAbstract read
In one paragraph

Article in Microcirculation (New York, N.Y. : 1994), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. PIPProceedings of the National Academy of Sciences of the United States of America · 2020
    Review
  5. Decreased inward rectifier and voltage-gated KThe Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2020
    Article
  6. Pirfenidone Is a Vasodilator: Involvement of KFrontiers in pharmacology · 2020
    Article
  7. Article
  8. Article
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  10. Article
  11. Angiotensin II Promotes KHypertension (Dallas, Tex. : 1979) · 2018
    Article
  12. Article
  13. Kv7 Channel Activation Underpins EPAC-Dependent Relaxations of Rat Arteries.Arteriosclerosis, thrombosis, and vascular biology · 2016
    Article
  14. Article
  15. Article
  16. Article
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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

5 authors at 2 institutions in 2 countries.

Sewon Lee *Dalton Cardiovascular Research Center, University of Missouri-Columbia, MO 65211.
Yan Yang *Dalton Cardiovascular Research Center, University of Missouri-Columbia, MO 65211.
Miles A TannerDalton Cardiovascular Research Center, University of Missouri-Columbia, MO 65211.
Min LiDalton Cardiovascular Research Center, University of Missouri-Columbia, MO 65211.
Michael A HillDalton Cardiovascular Research Center, University of Missouri-Columbia, MO 65211.
Incheon National University · KRUniversity of Missouri · US

Funding

Role of Cytokine-Induced Inflammation in Endothelial Dysfunction in DiabetesR01HL085119 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI HILL, MICHAEL A · 2007 to 2015
$3.1M
Signaling Mechanisms Underlying Myogenic Tone in Arterioles of Skeletal Muscle: RR01HL092241 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI HILL, MICHAEL A · 2009 to 2012
$1.5M
NHLBI NIH HHS HL092241NHLBI NIH HHS R01 HL085119NHLBI NIH HHS R01 HL092241
6 · The paper itself

Abstract

objectivesKv7 channels are considered important regulators of vascular smooth muscle contractility. The present study aimed to examine the hypotheses that (i) Kv7 channels are present in mouse cerebral and coronary arteries and regulate vascular reactivity and (ii) regional differences exist in the activity of these channels. METHODS AND

resultsPCR confirmed that basilar, Circle of Willis and LAD arteries express predominantly Kv7.1 and 7.4. Western blot analysis, however, showed greater Kv7.4 protein levels in the cerebral vessels. Relaxation to the Kv7 channel activator, retigabine (1-50 μM) was significantly greater in the basilar artery compared to the LAD artery. Similarly, the Kv7 channel inhibitor, linopirdine (10 μM) caused a stronger contraction of the basilar artery. Furthermore, pre-incubation with linopirdine reduced forskolin (cAMP activator)-induced vasorelaxation in basilar while not altering forskolin-induced vasorelaxation of the LAD, suggesting that Kv7 channels play a more prominent role in the cerebral than in the coronary circulation. Consistent with the vessel data, whole cell Kv7 currents in cerebral VSMCs were potentiated by retigabine and inhibited by linopirdine, while these responses were blunted in coronary VSMCs.

conclusionsThis study provides evidence that mouse Kv7 channels may contribute differently to regulating the functional properties of cerebral and coronary arteries. Such heterogeneity has important implications for developing novel therapeutics for cardiovascular dysfunction.

Indexed as

AnimalsBasilar ArteryCarbamatesCerebrovascular CirculationCircle of WillisColforsinCoronary CirculationIndolesKCNQ1 Potassium ChannelKCNQ Potassium ChannelsMaleMiceMice, KnockoutMuscle ContractionMuscle, Smooth, VascularOrgan SpecificityCarbamatesColforsinezogabineIndolesKCNQ1 Potassium ChannelKcnq1 protein, mouseKcnq4 protein, mouseKCNQ Potassium ChannelslinopirdinePhenylenediaminesPotassium Channel BlockersPyridinesVasodilator Agentscerebral and coronary arterieselectrophysiologyK+ channelspharmacological manipulationregional heterogeneityvoltage-gated K+ channels

Identifiers

PMID25476662
PMCPMC4409830
OpenAlexW2149240608

What OpenQuestion holds

Textmetadata
LicenceTDM
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.