Evidence map›Paper›PMID 23653460›Full record

ArticleEndocrinology2013

Dipeptidylpeptidase inhibition is associated with improvement in blood pressure and diastolic function in insulin-resistant male Zucker obese rats.

Annayya R Aroor, James R Sowers, Shawn B Bender, Ravi Nistala, Mona Garro, Irina Mugerfeld, Melvin R Hayden, Megan S Johnson, Muhammad Salam, Adam Whaley-Connell and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed, 1 pooled it
9.8field-weighted citation impact, top 1% 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

67 citing papers in PubMed, 1 synthesis or guideline pooled it, 104 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. Possible mechanisms of action of glucagon-like peptide-1 receptor agonists on blood pressure beyond body weight.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
    Review
  7. Article
  8. Role of obesity in chronic kidney disease progression.Current research in physiology · 2025
    Review
  9. Review
  10. Article
  11. Endothelial cell-specific mineralocorticoid receptor activation promotes diastolic dysfunction in diet-induced obese male mice.American journal of physiology. Regulatory, integrative and comparative physiology · 2023
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Review

7 more citing papers are in PubMed but not listed here.

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

11 authors at 2 institutions in 1 country.

Annayya R AroorDepartment of Internal Medicine, University of Missouri School of Medicine, and Diabetes and Cardiovascular Center, Columbia, MO 65212, USA.
James R Sowers
Shawn B Bender
Ravi Nistala
Mona Garro
Irina Mugerfeld
Melvin R Hayden
Megan S Johnson
Muhammad Salam
Adam Whaley-Connell
Vincent G Demarco
Harry S. Truman Memorial Veterans' Hospital · USUniversity of Missouri · US

Funding

ANG II OPPOSES INS MEDIATED VASORELAXATION &GLU UTILZAR01HL073101 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI SOWERS, JAMES RUSSELL · 2004 to 2013
$2.7M
Ang II and Overnutrition and Insulin resistance in Cardiovascular TissueR01HL107910 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI SOWERS, JAMES RUSSELL · 2011 to 2015
$1.8M
Interactions of the RAAS and a Western Diet on Insulin Metabolic ActionsI01BX001981 · VA · HARRY S. TRUMAN MEMORIAL VA HOSPITAL · PI LASTRA, GUIDO · 2013 to 2022
–
NHLBI NIH HHS R01 HL073101NHLBI NIH HHS R01-HL073101NHLBI NIH HHS R01 HL107910NHLBI NIH HHS R01-HL107910
6 · The paper itself

Abstract

Diastolic dysfunction is a prognosticator for future cardiovascular events that demonstrates a strong correlation with obesity. Pharmacological inhibition of dipeptidylpeptidase-4 (DPP-4) to increase the bioavailability of glucagon-like peptide-1 is an emerging therapy for control of glycemia in type 2 diabetes patients. Accumulating evidence suggests that glucagon-like peptide-1 has insulin-independent actions in cardiovascular tissue. However, it is not known whether DPP-4 inhibition improves obesity-related diastolic dysfunction. Eight-week-old Zucker obese (ZO) and Zucker lean rats were fed normal chow diet or diet containing the DPP-4 inhibitor, linagliptin (LGT), for 8 weeks. Plasma DPP-4 activity was 3.3-fold higher in ZO compared with Zucker lean rats and was reduced by 95% with LGT treatment. LGT improved echocardiographic and pressure volume-derived indices of diastolic function that were impaired in ZO control rats, without altering food intake or body weight gain during the study period. LGT also blunted elevated blood pressure progression in ZO rats involving improved skeletal muscle arteriolar function, without reducing left ventricular hypertrophy, fibrosis, or oxidative stress in ZO hearts. Expression of phosphorylated- endothelial nitric oxide synthase (eNOS)(Ser1177), total eNOS, and sarcoplasmic reticulum calcium ATPase 2a protein was elevated in the LGT-treated ZO heart, suggesting improved Ca(2+) handling. The ZO myocardium had an abnormal mitochondrial sarcomeric arrangement and cristae structure that were normalized by LGT. These studies suggest that LGT reduces blood pressure and improves intracellular Cai(2+) mishandling and cardiomyocyte ultrastructure, which collectively result in improvements in diastolic function in the absence of reductions in left ventricular hypertrophy, fibrosis, or oxidative stress in insulin-resistant ZO rats.

Indexed as

AnimalsBlood PressureBody WeightDipeptidyl-Peptidases and Tripeptidyl-PeptidasesEatingInsulin ResistanceLinagliptinMaleMyocardiumNitric Oxide Synthase Type IIIPurinesQuinazolinesRatsRats, ZuckerSarcoplasmic Reticulum Calcium-Transporting ATPasesDipeptidyl-Peptidases and Tripeptidyl-PeptidasesLinagliptinNitric Oxide Synthase Type IIIPurinesQuinazolinesSarcoplasmic Reticulum Calcium-Transporting ATPases

Identifiers

PMID23653460
PMCPMC3689282
OpenAlexW1973460974

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.