Evidence map›Paper›PMID 24023697›Full record

ArticlePloS one2013

The dopamine D3 receptor knockout mouse mimics aging-related changes in autonomic function and cardiac fibrosis.

Tracy L Johnson, David A Tulis, Benjamin E Keeler, Jitka A Virag, Robert M Lust, Stefan Clemens

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.4field-weighted citation impact, top 16% 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

24 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Cardiovascular pharmacology of dopaminergic agents in humans: a review.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Review
  3. Review
  4. Article
  5. Dopamine receptors and organ fibrosis.Biochemistry and biophysics reports · 2025
    Review
  6. pH-sensing GPR68 inhibits vascular smooth muscle cell proliferation through Rap1A.American journal of physiology. Heart and circulatory physiology · 2024
    Article
  7. Anti-Inflammatory Effects of Peripheral Dopamine.International journal of molecular sciences · 2023
    Review
  8. Role of Dopamine in the Heart in Health and Disease.International journal of molecular sciences · 2023
    Review
  9. Dopamine, Immunity, and Disease.Pharmacological reviews · 2023
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

6 authors at 1 institution in 1 country.

Tracy L JohnsonBrody School of Medicine, Department of Physiology, East Carolina University, Greenville, North Carolina, United States of America.
David A Tulis
Benjamin E Keeler
Jitka A Virag
Robert M Lust
Stefan Clemens
East Carolina University · US

Funding

NO-independent cGMP regulation of vascular remodelingR01HL081720 · NHLBI · NORTH CAROLINA CENTRAL UNIVERSITY · PI TULIS, DAVID A · 2007 to 2012
$2.2M
NHLBI NIH HHS R01 HL081720NHLBI NIH HHS R01HL081720
6 · The paper itself

Abstract

Blood pressure increases with age, and dysfunction of the dopamine D3 receptor has been implicated in the pathogenesis of hypertension. To evaluate the role of the D3 receptor in aging-related hypertension, we assessed cardiac structure and function in differently aged (2 mo, 1 yr, 2 yr) wild type (WT) and young (2 mo) D3 receptor knockout mice (D3KO). In WT, systolic and diastolic blood pressures and rate-pressure product (RPP) significantly increased with age, while heart rate significantly decreased. Blood pressure values, heart rate and RPP of young D3KO were significantly elevated over age-matched WT, but similar to those of the 2 yr old WT. Echocardiography revealed that the functional measurements of ejection fraction and fractional shortening decreased significantly with age in WT and that they were significantly smaller in D3KO compared to young WT. Despite this functional change however, cardiac morphology remained similar between the age-matched WT and D3KO. Additional morphometric analyses confirmed an aging-related increase in left ventricle (LV) and myocyte cross-sectional areas in WT, but found no difference between age-matched young WT and D3KO. In contrast, interstitial fibrosis, which increased with age in WT, was significantly elevated in the D3KO over age-matched WT, and similar to 2 yr old WT. Western analyses of myocardial homogenates revealed significantly increased levels of pro- and mature collagen type I in young D3KO. Column zymography revealed that activities of myocardial MMP-2 and MMP-9 increased with age in WTs, but in D3KO, only MMP-9 activity was significantly increased over age-matched WTs. Our data provide evidence that the dopamine D3 receptor has a critical role in the emergence of aging-related cardiac fibrosis, remodeling, and dysfunction.

Indexed as

AgingAnimalsAutonomic Nervous SystemBlood PressureBlotting, WesternBody WeightEchocardiographyFibrosisHeart RateKaplan-Meier EstimateMatrix Metalloproteinase 2Matrix Metalloproteinase 9MiceMice, KnockoutMyocardiumMyocytes, CardiacMatrix Metalloproteinase 2Matrix Metalloproteinase 9Receptors, Dopamine D3

Identifiers

PMID24023697
PMCPMC3758275
OpenAlexW2118489858

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.