Evidence mapPaperPMID 39766216Full record

ArticleBiomolecules2024

Acclimation of Hairless Spontaneously Hypertensive Rat to Ambient Temperature Attenuates Hypertension-Induced Pro-Arrhythmic Downregulation of Cx43 in the Left Heart Ventricle of Males.

Katarina Andelova, Matus Sykora, Veronika Farkasova, Tatiana Stankovicova, Barbara Szeiffova Bacova, Vladimir Knezl, Tamara Egan Benova, Michal Pravenec, Narcis Tribulova

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Article in Biomolecules, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
field-weighted citation impact
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

3 citing papers in PubMed.

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4 · The record

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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.

Katarina AndelovaCentre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia.ORCID 0000-0002-1499-7687
Matus SykoraCentre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia.ORCID 0000-0002-0438-3956
Veronika FarkasovaCentre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia.
Tatiana StankovicovaDepartment of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, 832 32 Bratislava, Slovakia.
Barbara Szeiffova BacovaCentre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia.ORCID 0000-0001-8394-7459
Vladimir KnezlCentre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia.
Tamara Egan BenovaCentre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia.
Michal PravenecInstitute of Physiology, v.v.i., Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic.ORCID 0000-0001-9197-5871
Narcis TribulovaCentre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia.ORCID 0000-0002-5904-4249

Funding

Slovak Research and Development Agency under the Contract no. APVV-21-0410the INTER-EXCELLENCE program of the Ministry of Education, Youth, and Sports of the Czech Republic LUAUS23095VEGA grants 2/0002/20, 2/0006/23; 2/0133/24
6 · The paper itself

Abstract

objectivesDue to poor treatment adherence and lifestyle-based interventions, chronic hypertension is a dominant risk factor predisposing individuals to heart failure and malignant arrhythmias. We investigated the impact of the postnatal acclimation of hairless SHR to ambient temperature that is, for them, below thermoneutrality, on the electrical coupling protein connexin-43 (Cx43) and pro-fibrotic markers in both heart ventricles of male and female hairless SHR rats compared to the wild SHR.

methodsSome 6-month-acclimated male and female hairless SHR as well as age- and sex-matched wild SHR were included and compared with the non-hypertensive Wistar strain. The left and right heart ventricles were examined for Cx43 topology, myocardial structure, and the histochemistry of capillaries. The protein levels of Cx43, relevant protein kinases, and extracellular matrix proteins (ECMs) were determined by immunoblotting. MMP-2 activity was assessed via zymography, and susceptibility to malignant arrhythmias was tested ex vivo.

resultsCx43 and its phosphorylated variant pCx43

conclusionsThe findings indicate that the postnatal acclimation of hairless SHR to ambient temperature hampers the downregulation of Cx43 in the left heart ventricle compared to wild SHR males. The decline of Cx43 was much less pronounced in females and not observed in the right heart ventricles, regardless of the rat strain. It may impact the susceptibility of the heart to malignant arrhythmias.

Indexed as

Arrhythmias, CardiacConnexin 43Heart VentriclesHypertensionRats, Inbred SHRTemperatureAcclimatizationAnimalsDown-RegulationFemaleMaleRatsRats, WistarConnexin 43Gja1 protein, ratarrhythmiasconnexin43femaleshairless SHRleft and right heart ventriclemales

Identifiers

PMID39766216
PMCPMC11674011

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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 Socratic graph.