Evidence map›Paper›PMID 27294204›Full record

ArticleJCI insight

Protein methionine oxidation augments reperfusion injury in acute ischemic stroke.

Sean X Gu, Ilya O Blokhin, Katina M Wilson, Nirav Dhanesha, Prakash Doddapattar, Isabella M Grumbach, Anil K Chauhan, Steven R Lentz

Open access · goldAbstract read
In one paragraph

Article in JCI insight. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

22 citing papers in PubMed, 34 citations in OpenAlex.

  1. Trial
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  8. Review
  9. Article
  10. Redox Mechanisms of Platelet Activation in Aging.Antioxidants (Basel, Switzerland) · 2022
    Review
  11. Article
  12. Role of CaFrontiers in molecular neuroscience · 2022
    Review
  13. Article
  14. The Antioxidant Role of One-Carbon Metabolism on Stroke.Antioxidants (Basel, Switzerland) · 2020
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. 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

8 authors at 1 institution in 1 country.

Sean X GuDepartment of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Ilya O BlokhinDepartment of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Katina M WilsonDepartment of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Nirav DhaneshaDepartment of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Prakash DoddapattarDepartment of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Isabella M GrumbachDepartment of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Anil K ChauhanDepartment of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
Steven R LentzDepartment of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.
University of Iowa · US

Funding

Vascular Protection During HypertensionP01HL062984 · NHLBI · UNIVERSITY OF IOWA · PI FARACI, FRANK M · 2000 to 2015
$22.2M
MEDICAL SCIENTIST TRAINING PROGRAMT32GM007337 · NIGMS · UNIVERSITY OF IOWA · PI GEYER, PAMELA K., LENTZ, STEVEN R · 1985 to 2020
$15.9M
Mitochondrial CaMKII drives smooth muscle migration and neointimal hyperplasiaR01HL108932 · NHLBI · UNIVERSITY OF IOWA · PI GRUMBACH, ISABELLA MARIA · 2012 to 2021
$3.6M
Mechanisms of Fibronectin Extra Domain A in AtherosclerosisR01HL118246 · NHLBI · UNIVERSITY OF IOWA · PI CHAUHAN, ANIL KUMAR · 2013 to 2017
$1.9M
Fibronectin alternative splicing in thrombosis and inflammationR01HL118742 · NHLBI · UNIVERSITY OF IOWA · PI CHAUHAN, ANIL KUMAR · 2014 to 2017
$1.5M
Mitochondrial CAMKII in smooth muscle as key regulator of hypertension and vascular remodelingI01BX000163 · VA · OKLAHOMA CITY VA MEDICAL CENTER · PI Isabella Maria Grumbach · 2011 to 2026
–
BLRD VA I01 BX000163NHLBI NIH HHS P01 HL062984NHLBI NIH HHS R01 HL108932NHLBI NIH HHS R01 HL118246NHLBI NIH HHS R01 HL118742NIGMS NIH HHS T32 GM007337
6 · The paper itself

Abstract

Reperfusion injury can exacerbate tissue damage in ischemic stroke, but little is known about the mechanisms linking ROS to stroke severity. Here, we tested the hypothesis that protein methionine oxidation potentiates NF-κB activation and contributes to cerebral ischemia/reperfusion injury. We found that overexpression of methionine sulfoxide reductase A (MsrA), an antioxidant enzyme that reverses protein methionine oxidation, attenuated ROS-augmented NF-κB activation in endothelial cells, in part, by protecting against the oxidation of methionine residues in the regulatory domain of calcium/calmodulin-dependent protein kinase II (CaMKII). In a murine model, MsrA deficiency resulted in increased NF-κB activation and neutrophil infiltration, larger infarct volumes, and more severe neurological impairment after transient cerebral ischemia/reperfusion injury. This phenotype was prevented by inhibition of NF-κB or CaMKII. MsrA-deficient mice also exhibited enhanced leukocyte rolling and upregulation of E-selectin, an endothelial NF-κB-dependent adhesion molecule known to contribute to neurovascular inflammation in ischemic stroke. Finally, bone marrow transplantation experiments demonstrated that the neuroprotective effect was mediated by MsrA expressed in nonhematopoietic cells. These findings suggest that protein methionine oxidation in nonmyeloid cells is a key mechanism of postischemic oxidative injury mediated by NF-κB activation, leading to neutrophil recruitment and neurovascular inflammation in acute ischemic stroke.

Identifiers

PMID27294204
PMCPMC4902298
OpenAlexW2405128081

What OpenQuestion holds

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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.