Evidence map›Paper›PMID 24585779›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2014

Hyperhomocysteinemia attenuates angiogenesis through reduction of HIF-1α and PGC-1α levels in muscle fibers during hindlimb ischemia.

Sudhakar Veeranki, Srikanth Givvimani, Sathnur Pushpakumar, Suresh C Tyagi

Abstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-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

16 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
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  12. Hyperhomocysteinemia inhibits satellite cell regenerative capacity through p38 alpha/beta MAPK signaling.American journal of physiology. Heart and circulatory physiology · 2015
    Article
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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

4 authors at 1 institution in 1 country.

Sudhakar VeerankiDepartment of Physiology and Biophysics, University of Louisville, Louisville, Kentucky.
Srikanth Givvimani
Sathnur Pushpakumar
Suresh C Tyagi
University of Louisville · US

Funding

Reversing diabetic muscle myopathy by exercise and exosomesR01HL074185 · NHLBI · UNIVERSITY OF LOUISVILLE · PI TYAGI, SURESH C. · 2003 to 2018
$5.7M
Mechanisms of Homocysteine-Induced Fibrinogen-Amyloid Plaque FormationR01NS084823 · NINDS · UNIVERSITY OF LOUISVILLE · PI LOMINADZE, DAVID, TYAGI, SURESH C. · 2013 to 2017
$2.7M
Mitophagic and anti-angiogenic mechanism of heart failureR01HL108621 · NHLBI · UNIVERSITY OF LOUISVILLE · PI TYAGI, SURESH C. · 2011 to 2015
$1.8M
NHLBI NIH HHS HL-108621NHLBI NIH HHS HL-74185NINDS NIH HHS NS-84823
6 · The paper itself

Abstract

Hyperhomocysteinemia (HHcy) is associated with elderly frailty, skeletal muscle injury and malfunction, reduced vascular integrity and function, and mortality. Although HHcy has been implicated in the impairment of angiogenesis after hindlimb ischemia in murine models, the underlying mechanisms are still unclear. We hypothesized that HHcy compromises skeletal muscle perfusion, collateral formation, and arteriogenesis by diminishing postischemic vasculogenic responses in muscle fibers. To test this hypothesis, we created femoral artery ligation in wild-type and heterozygous cystathionine β-synthase (CBS(+/-)) mice (a model for HHcy) and assessed tissue perfusion, collateral vessel formation, and skeletal muscle function using laser-Doppler perfusion imaging, barium angiography, and fatigue tests. In addition, we assessed postischemic levels of VEGF and levels of its muscle-specific regulators: hypoxia-inducible factor (HIF)-1α and peroxisome proliferator-activated receptor-γ coactivator (PGC)-1α. The observations indicated dysregulation of VEGF, HIF-1α, and PGC-1α levels in ischemic skeletal muscles of CBS(+/-) mice. Concomitant with the reduced ischemic angiogenic responses, we also observed diminished leptin expression and attenuated Akt signaling in ischemic muscle fibers of CBS(+/-) mice. Moreover, there was enhanced atrogene, ubiquitin ligases that conjugate proteins for degradation during muscle atrophy, transcription, and reduced muscle function after ischemia in CBS(+/-) mice. These results suggest that HHcy adversely affects muscle-specific ischemic responses and contributes to muscle frailty.

Indexed as

AnimalsBehavior, AnimalCystathionine beta-SynthaseFemoral ArteryGene ExpressionHindlimbHyperhomocysteinemiaHypoxia-Inducible Factor 1, alpha SubunitIschemiaLigationMaleMiceMice, Inbred C57BLMice, KnockoutMuscle ProteinsMuscle, SkeletalCystathionine beta-SynthaseFbxo32 protein, mouseHif1a protein, mouseHypoxia-Inducible Factor 1, alpha SubunitMuscle ProteinsPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPpargc1a protein, mouseProto-Oncogene Proteins c-aktRNA, MessengerSKP Cullin F-Box Protein LigasesTranscription FactorsTrim63 protein, mouseTripartite Motif ProteinsUbiquitin-Protein LigasesVascular Endothelial Growth Factor AAktangiogenesisatrogin-1CD31hyperhomocysteinemiahypoxia-inducible factorischemialeptinmuscle ring finger-1peroxisome proliferator-activated receptor-γ coactivator-1αskeletal musclevascular endothelial growth factor

Identifiers

PMID24585779
PMCPMC3989752
OpenAlexW2116230977

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.