Evidence map›Paper›PMID 34548593›Full record

ArticleScientific reports2021

Chronic exposure to tramadol induces cardiac inflammation and endothelial dysfunction in mice.

Marwa H Bakr, Eman Radwan, Asmaa S Shaltout, Alshaimaa A Farrag, Amany Refaat Mahmoud, Tarek Hamdy Abd-Elhamid, Maha Ali

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

7 citing papers in PubMed, 22 citations in OpenAlex.

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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

7 authors at 4 institutions in 2 countries.

Marwa H Bakr *Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt. m.elbadawy@aun.edu.eg.ORCID 0000-0001-8833-7916
Eman Radwan *Department of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut, Egypt.
Asmaa S ShaltoutDepartment of Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt.
Alshaimaa A FarragDepartment of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt.
Amany Refaat MahmoudDepartment of Human Anatomy and Embryology, Faculty of Medicine, Assiut University, Assiut, Egypt.
Tarek Hamdy Abd-ElhamidDepartment of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt.
Maha AliDepartment of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut, Egypt.
Assiut University · EGQassim University · SASphinx University · EGUniversity of Bisha · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tramadol is an opioid extensively used to treat moderate to severe pain; however, prolonged therapy is associated with several tissues damage. Chronic use of tramadol was linked to increased hospitalizations due to cardiovascular complications. Limited literature has described the effects of tramadol on the cardiovascular system, so we sought to investigate these actions and elucidate the underlying mechanisms. Mice received tramadol hydrochloride (40 mg/kg body weight) orally for 4 successive weeks. Oxidative stress, inflammation, and cardiac toxicity were assessed. In addition, eNOS expression was evaluated. Our results demonstrated marked histopathological alteration in heart and aortic tissues after exposure to tramadol. Tramadol upregulated the expression of oxidative stress and inflammatory markers in mice heart and aorta, whereas downregulated eNOS expression. Tramadol caused cardiac damage shown by the increase in LDH, Troponin I, and CK-MB activities in serum samples. Overall, these results highlight the risks of tramadol on the cardiovascular system.

Indexed as

Analgesics, OpioidAnimalsCytokinesDown-RegulationEndothelium, VascularHeartInflammation MediatorsMiceMice, Inbred C57BLMyocarditisNitric Oxide Synthase Type IIIOxidative StressTramadolUp-RegulationAnalgesics, OpioidCytokinesInflammation MediatorsNitric Oxide Synthase Type IIITramadol

Identifiers

PMID34548593
PMCPMC8455605
OpenAlexW3200475715

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.