Evidence map›Paper›PMID 27128560›Full record

ArticleInternational journal of cardiology2016

Ablation of SIRT3 causes coronary microvascular dysfunction and impairs cardiac recovery post myocardial ischemia.

Xiaochen He, Heng Zeng, Jian-Xiong Chen

Abstract read
In one paragraph

Article in International journal of cardiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
5.1field-weighted citation impact, top 5% 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

55 citing papers in PubMed, 83 citations in OpenAlex.

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  13. TIGAR Deficiency Blunts Angiotensin-II-Induced Cardiac Hypertrophy in Mice.International journal of molecular sciences · 2024
    Article
  14. NADHeliyon · 2023
    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

3 authors at 1 institution in 1 country.

Xiaochen HeDept. of Pharmacology and Toxicology, University of Mississippi Medical Center, United States.
Heng ZengDept. of Pharmacology and Toxicology, University of Mississippi Medical Center, United States.
Jian-Xiong ChenDept. of Pharmacology and Toxicology, University of Mississippi Medical Center, United States. Electronic address: JChen3@umc.edu.
University of Mississippi Medical Center · US

Funding

Regulation of vascular maturation/regression in diabetesR01HL102042 · NHLBI · VANDERBILT UNIVERSITY · PI CHEN, JIAN-XIONG · 2010 to 2020
$3.0M
NHLBI NIH HHS R01 HL102042
6 · The paper itself

Abstract

rationaleSirtuin (SIRT3), a major nicotinamide adenine dinucleotide (NAD(+))-dependent deacetylase in mitochondria, declines with aging and its ablation is associated with accelerated development of cardiovascular diseases. However, the role of SIRT3 in coronary microvascular function and post-MI recovery has not been completely understood.

objectiveThe goal was to investigate whether ablation of SIRT3 causes coronary microvascular dysfunction, exacerbates post-myocardial ischemia (MI) cardiac dysfunction and impairs cardiac recovery. METHODS AND

resultsUsing endothelial cells (ECs) isolated from SIRT3 knockout (KO) mice, we revealed that the angiogenic capabilities were significantly reduced in SIRT3 deficient ECs. SIRT3 KO mice presented a pre-existing coronary microvascular dysfunction and microvascular rarefaction, as evidenced by a reduction in hyperemic peak diastolic blood flow velocity and coronary flow reserve (CFR), accompanied by loss of capillary-pericytes in the heart. Furthermore, SIRT3 KO mice subjected to myocardial ischemia by the ligation of left anterior descending coronary artery (LAD) exhibited more severe cardiac dysfunction together with decreased pericyte/EC coverage than that of wild type (WT) mice. In contrast, overexpression of SIRT3 preserved cardiac function in post-MI mice. Immunoblot analysis further showed that the expression of angiopoietin-1 (Ang-1), vascular endothelial growth factor (VEGF) and 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) were significantly decreased in the SIRT3-deficient ischemic hearts than those of WT ischemic hearts. This was accompanied by higher levels of cleaved caspase-3 and apoptosis.

conclusionOur results reveal a potential mechanism by which SIRT3 deletion exacerbates post-MI cardiac dysfunction and impairment of cardiac recovery involving microvascular rarefaction and pre-existing coronary microvascular dysfunction.

Indexed as

AnimalsBlood Flow VelocityCells, CulturedCoronary VesselsEndothelial CellsHumansMiceMice, KnockoutMicrovesselsMyocardial IschemiaRecovery of FunctionSirtuin 3Sirt3 protein, mouseSirtuin 3CFRMyocardial ischemiaPericyteSIRT3

Identifiers

PMID27128560
PMCPMC4890543
OpenAlexW2341811255

What OpenQuestion holds

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LicenceTDM
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.