Evidence map›Paper›PMID 32743008›Full record

ArticleERJ open research2020

Pulmonary arterial hypertension-associated changes in gut pathology and microbiota.

Ravindra K Sharma, Aline C Oliveira, Tao Yang, Seungbum Kim, Jasenka Zubcevic, Victor Aquino, Gilberto O Lobaton, Ruby Goel, Elaine M Richards, Mohan K Raizada

Open access · goldAbstract read
In one paragraph

Article in ERJ open research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.

  1. Pooled it
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  8. Circulation. Heart failure · 2025
    Article
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  11. Respiratory diseases and the gut microbiota: an updated review.Frontiers in cellular and infection microbiology · 2025
    Review
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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

10 authors at 2 institutions in 1 country.

Ravindra K SharmaDept of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.ORCID https://orcid.org/0000-0001-8099-0697
Aline C OliveiraDept of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.
Tao YangDept of Physiology and Pharmacology, University of Toledo, Toledo, OH, USA.
Seungbum KimDept of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.
Jasenka ZubcevicDept of Physiological Sciences, University of Florida, Gainesville, FL, USA.
Victor AquinoDept of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.
Gilberto O LobatonDept of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.
Ruby GoelDept of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.
Elaine M RichardsDept of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.
Mohan K RaizadaDept of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.
University of Florida · USUniversity of Toledo · US

Funding

Angiotensin-Converting Enzyme2 in Vascular Endothelial FunctionR01HL102033 · NHLBI · UNIVERSITY OF FLORIDA · PI RAIZADA, MOHAN K. · 2010 to 2019
$4.3M
Gut-brain axis: functional link between microbial metabolites and neurogenic hypertensionR21AT010192 · NCCIH · UNIVERSITY OF FLORIDA · PI MARTYNIUK, CHRISTOPHER JOSEPH · 2019 to 2020
$419k
NCCIH NIH HHS R21 AT010192NHLBI NIH HHS R01 HL102033
6 · The paper itself

Abstract

Emerging evidence implicates an interplay among multiple organs such as brain, vasculature, gut and lung in the development of established pulmonary arterial hypertension (PAH). This has led us to propose that activated microglia mediated-enhanced sympathetic activation contributes to PAH pathophysiology. Since enhanced sympathetic activity is observed in human PAH and the gut is highly innervated by sympathetic nerves that regulate its physiological functions, we hypothesized that PAH would be associated with gut pathophysiology. A monocrotaline rat model of PAH was utilized to investigate the link between gut pathology and PAH. Haemodynamics, histology, immunocytochemistry and 16S RNA gene sequencing were used to assess cardiopulmonary functions, gut pathology and gut microbial communities respectively. Monocrotaline treatment caused increased right ventricular systolic pressure, haemodynamics and pathological changes associated with PAH. PAH animals also showed profound gut pathology that included increased intestinal permeability, increased muscularis layer, decreased villi length and goblet cells. These changes in gut pathology were associated with alterations in microbial communities, some unique to PAH animals. Furthermore, enhanced gut-neural communication involving the paraventricular nucleus of the hypothalamus and increased sympathetic drive were observed. In conclusion, our data show the presence of gut pathology and distinct changes in gut microbiota and increased sympathetic activity in PAH. They suggest that dysfunctional gut-brain crosstalk could be critical in PAH and considered a future therapeutic target for PAH.

Identifiers

PMID32743008
PMCPMC7383054
OpenAlexW3045268447

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.