Evidence map›Paper›PMID 17124262›Full record

ArticleThe Journal of physiology2007

Carbonic anhydrase inhibition prevents and reverts cardiomyocyte hypertrophy.

Bernardo V Alvarez, Danielle E Johnson, Daniel Sowah, Daniel Soliman, Peter E Light, Ying Xia, Morris Karmazyn, Joseph R Casey

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

33 citing papers in PubMed, 78 citations in OpenAlex.

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  11. The therapeutic importance of acid-base balance.Biochemical pharmacology · 2021
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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

8 authors at 3 institutions in 2 countries.

Bernardo V AlvarezDepartment of Physiology, Membrane Protein Research Group, University of Alberta, Edmonton, Canada T6G2H7.
Danielle E Johnson
Daniel Sowah
Daniel Soliman
Peter E Light
Ying Xia
Morris Karmazyn
Joseph R Casey
University of Alberta · CAWestern University · CAInstitute of Protein Research · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypertrophic cardiomyocyte growth contributes substantially to the progression of heart failure. Activation of the plasma membrane Na+-H+ exchanger (NHE1) and Cl- -HCO3- exchanger (AE3) has emerged as a central point in the hypertrophic cascade. Both NHE1 and AE3 bind carbonic anhydrase (CA), which activates their transport flux, by providing H+ and HCO3-, their respective transport substrates. We examined the contribution of CA activity to the hypertrophic response of cultured neonatal and adult rodent cardiomyocytes. Phenylephrine (PE) increased cell size by 37 +/- 2% and increased expression of the hypertrophic marker, atrial natriuretic factor mRNA, twofold in cultured neonatal rat cardiomyocytes. Cell size was also increased in adult cardiomyocytes subjected to angiotensin II or PE treatment. These effects were associated with increased expression of cytosolic CAII protein and the membrane-anchored isoform, CAIV. The membrane-permeant CA inhibitor, 6-ethoxyzolamide (ETZ), both prevented and reversed PE-induced hypertrophy in a concentration-dependent manner in neonate cardiomyocytes (IC50=18 microm). ETZ and the related CA inhibitor methazolamide prevented hypertrophy in adult cardiomyocytes. In addition, ETZ inhibited transport activity of NHE1 and the AE isoform, AE3, with respective EC50 values of 1.2 +/- 0.3 microm and 2.7 +/- 0.3 microm. PE significantly increased neonatal cardiomyocyte Ca2+ transient frequency from 0.33 +/- 0.4 Hz to 0.77 +/- 0.04 Hz following 24 h treatment; these Ca2+ -handling abnormalities were completely prevented by ETZ (0.28 +/- 0.07 Hz). Our study demonstrates a novel role for CA in mediating the hypertrophic response of cardiac myocytes to PE and suggests that CA inhibition represents an effective therapeutic approach towards mitigation of the hypertrophic phenotype.

Indexed as

Myocytes, CardiacAge FactorsAngiotensin IIAnimalsAtrial Natriuretic FactorCalciumCarbonic Anhydrase IICarbonic Anhydrase InhibitorsCarbonic AnhydrasesCardiomegalyCardiotonic AgentsCation Transport ProteinsCells, CulturedChloride-Bicarbonate AntiportersEthoxzolamideGene ExpressionAngiotensin IIAtrial Natriuretic FactorCalciumCarbonic Anhydrase IICarbonic Anhydrase InhibitorsCarbonic AnhydrasesCardiotonic AgentsCation Transport ProteinsChloride-Bicarbonate AntiportersEthoxzolamideMembrane Transport ProteinsPhenylephrineSLC26A6 protein, humanSLC9A1 protein, humanSodium-Hydrogen Exchanger 1Sodium-Hydrogen ExchangersSulfate TransportersVasoconstrictor Agents

Identifiers

PMID17124262
PMCPMC2075384
OpenAlexW1512080163

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.