Evidence map›Paper›PMID 33015090›Full record

ArticleFrontiers in medicine2020

Motor Cortex and Hippocampus Display Decreased Heme Oxygenase Activity 2 Weeks After Ventricular Fibrillation Cardiac Arrest in Rats.

Alexandra-Maria Warenits, Jasmin Hatami, Andrea Müllebner, Florian Ettl, Ursula Teubenbacher, Ingrid Anna Maria Magnet, Barbara Bauder, Andreas Janata, Ingrid Miller, Rudolf Moldzio and 6 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.2field-weighted citation impact, top 49% 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

3 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. 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

16 authors at 3 institutions in 1 country.

Alexandra-Maria WarenitsDepartment of Emergency Medicine, Medical University of Vienna, Vienna, Austria.
Jasmin HatamiInstitute for Medical Biochemistry, University of Veterinary Medicine Vienna, Vienna, Austria.
Andrea MüllebnerInstitute for Medical Biochemistry, University of Veterinary Medicine Vienna, Vienna, Austria.
Florian EttlDepartment of Emergency Medicine, Medical University of Vienna, Vienna, Austria.
Ursula TeubenbacherDepartment of Emergency Medicine, Medical University of Vienna, Vienna, Austria.
Ingrid Anna Maria MagnetDepartment of Emergency Medicine, Medical University of Vienna, Vienna, Austria.
Barbara BauderLudwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.
Andreas JanataDepartment of Emergency Medicine, Medical University of Vienna, Vienna, Austria.
Ingrid MillerInstitute for Medical Biochemistry, University of Veterinary Medicine Vienna, Vienna, Austria.
Rudolf MoldzioInstitute for Medical Biochemistry, University of Veterinary Medicine Vienna, Vienna, Austria.
Anne-Margarethe KramerInstitute of Pathology, University of Veterinary Medicine Vienna, Vienna, Austria.
Fritz SterzDepartment of Emergency Medicine, Medical University of Vienna, Vienna, Austria.
Michael HolzerDepartment of Emergency Medicine, Medical University of Vienna, Vienna, Austria.
Sandra HöglerCenter for Biomedical Research, Medical University of Vienna, Vienna, Austria.
Wolfgang WeihsDepartment of Emergency Medicine, Medical University of Vienna, Vienna, Austria.
Johanna Catharina DuvigneauInstitute for Medical Biochemistry, University of Veterinary Medicine Vienna, Vienna, Austria.
Medical University of Vienna · ATUniversity of Veterinary Medicine Vienna · ATLudwig Boltzmann Institute for Experimental and Clinical Traumatology · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heme oxygenase (HO) and biliverdin reductase (BVR) activities are important for neuronal function and redox homeostasis. Resuscitation from cardiac arrest (CA) frequently results in neuronal injury and delayed neurodegeneration that typically affect vulnerable brain regions, primarily hippocampus (Hc) and motor cortex (mC), but occasionally also striatum and cerebellum. We questioned whether these delayed effects are associated with changes of the HO/BVR system. We therefore analyzed the activities of HO and BVR in the brain regions Hc, mC, striatum and cerebellum of rats subjected to ventricular fibrillation CA (6 min or 8 min) after 2 weeks following resuscitation, or sham operation. From all investigated regions, only Hc and mC showed significantly decreased HO activities, while BVR activity was not affected. In order to find an explanation for the changed HO activity, we analyzed protein abundance and mRNA expression levels of HO-1, the inducible, and HO-2, the constitutively expressed isoform, in the affected regions. In both regions we found a tendency for a decreased immunoreactivity of HO-2 using immunoblots and immunohistochemistry. Additionally, we investigated the histological appearance and the expression of markers indicative for activation of microglia [

Indexed as

biliverdin reductasebrain regionscardiac arrestenzyme activityglobal cerebral ischemiaheme degradation pathwayneurodegenerationreperfusion injury

Identifiers

PMID33015090
PMCPMC7511667
OpenAlexW3084472717

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.