Evidence map›Paper›PMID 23319544›Full record

ArticleHypertension (Dallas, Tex. : 1979)2013

Inhibition of phosphodiesterase-1 attenuates cold-induced pulmonary hypertension.

Patrick Crosswhite, Zhongjie Sun

Open access · bronzeAbstract read
In one paragraph

Article in Hypertension (Dallas, Tex. : 1979), 2013. 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
2.6field-weighted citation impact, top 10% 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, 35 citations in OpenAlex.

  1. Article
  2. Review
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  6. Article
  7. Review
  8. Article
  9. Article
  10. An Exaggerated Rise in Pulmonary Artery Pressure in a High-Altitude Dweller during the Cold Season.International journal of environmental research and public health · 2021
    Article
  11. Article
  12. Review
  13. Article
  14. Antiaging Gene Klotho Regulates Adrenal CYP11B2 Expression and Aldosterone Synthesis.Journal of the American Society of Nephrology : JASN · 2016
    Article
  15. Aging, arterial stiffness, and hypertension.Hypertension (Dallas, Tex. : 1979) · 2015
    Review
  16. Article
  17. Article
  18. 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

2 authors at 1 institution in 1 country.

Patrick CrosswhiteDepartment of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73126-0901, USA.
Zhongjie Sun
University of Oklahoma Health Sciences Center · US

Funding

THE ROLE OF COMPLEX 1 IN MITOCHONDRIAL DYSFUNCTION & FREE RADICAL PROD IN TYPE 1P20RR024215 · NCRR · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI SHORT, KEVIN R. · 2007 to 2011
$11.7M
Regulation of Blood Pressure by KlothoR01HL102074 · NHLBI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI SUN, ZHONGJIE · 2011 to 2014
$2.1M
Investigation into Cold-induced Pulmonary Vascular Inflammation and DysfunctionR01HL116863 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI SUN, ZHONGJIE · 2013 to 2016
$1.4M
Molecular Mechanism of Arterial StiffeningR01HL105302 · NHLBI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI SUN, ZHONGJIE · 2010 to 2014
$1.4M
NCRR NIH HHS P20 RR 024215NCRR NIH HHS P20 RR024215NHLBI NIH HHS HL102074NHLBI NIH HHS HL105302NHLBI NIH HHS R01 HL102074NHLBI NIH HHS R01 HL105302NHLBI NIH HHS R01 HL116863
6 · The paper itself

Abstract

Chronic exposure to cold caused pulmonary arterial hypertension (cold-induced pulmonary hypertension [CIPH]) and increased phosphodiesterase-1C (PDE-1C) expression in pulmonary arteries (PAs) in rats. The purpose of this study is to investigate a hypothesis that inhibition of PDE-1 would decrease inflammatory infiltrates and superoxide production leading to attenuation of CIPH. Three groups of male rats were exposed to moderate cold (5±1°C) continuously, whereas 3 groups were maintained at room temperature (23.5±1°C, warm; 6 rats/group). After 8-week exposure to cold, 3 groups in each temperature condition received continuous intravenous infusion of 8-isobutyl-methylxanthine (8-IBMX) (PDE-1 inhibitor), apocynin (NADPH oxidase inhibitor) or vehicle, respectively, for 1 week. Cold exposure significantly increased right-ventricular systolic pressure compared with warm groups (33.8±3.2 versus 18.6±0.3 mm Hg), indicating that animals developed CIPH. Notably, treatment with 8-IBMX significantly attenuated the cold-induced increase in right ventricular pressure (23.5±1.8 mm Hg). Cold exposure also caused right-ventricular hypertrophy, whereas 8-IBMX reversed cold-induced right ventricular hypertrophy. Cold exposure increased PDE-1C protein expression, macrophage infiltration, NADPH oxidase activity, and superoxide production in PAs and resulted in PA remodeling. 8-IBMX abolished cold-induced upregulation of PDE-1C in PAs. Interestingly, inhibition of PDE-1 eliminated cold-induced macrophage infiltration, NADPH oxidase activation, and superoxide production in PAs and reversed PA remodeling. Inhibition of NADPH oxidase by apocynin abolished cold-induced superoxide production and attenuated CIPH and PA remodeling. In conclusion, inhibition of PDE-1 attenuated CIPH and reversed cold-induced PA remodeling by suppressing macrophage infiltration and superoxide production, suggesting that upregulation of PDE-1C expression may be involved in the pathogenesis of CIPH.

Indexed as

1-Methyl-3-isobutylxanthineAcetophenonesAnimalsCold TemperatureCyclic Nucleotide Phosphodiesterases, Type 1Enzyme InhibitorsFamilial Primary Pulmonary HypertensionHypertension, PulmonaryHypertrophy, Right VentricularLung DiseasesMacrophagesMaleNADPH OxidasesPulmonary ArteryRatsRats, Sprague-Dawley1-Methyl-3-isobutylxanthineAcetophenonesacetovanilloneCyclic Nucleotide Phosphodiesterases, Type 1Enzyme InhibitorsNADPH OxidasesPde1C protein, ratSuperoxides

Identifiers

PMID23319544
PMCPMC4050371
OpenAlexW2149641297

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.