Evidence map›Paper›PMID 25550769›Full record

ArticleInternational journal of clinical and experimental pathology2014

Effect of chronic usage of tramadol on motor cerebral cortex and testicular tissues of adult male albino rats and the effect of its withdrawal: histological, immunohistochemical and biochemical study.

Fatma M Ghoneim, Hanaa A Khalaf, Ayman Z Elsamanoudy, Ahmed N Helaly

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental pathology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.6field-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

32 citing papers in PubMed, 108 citations in OpenAlex.

  1. Article
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  4. Biochemical and Histopathological Alterations Induced by Tramadol.Medical journal of the Islamic Republic of Iran · 2025
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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.

Fatma M GhoneimDepartment of Histology and Cell Biology, Faculty of Medicine, Mansoura University Egypt.
Hanaa A KhalafDepartment of Histology and Cell Biology, Faculty of Medicine, Mansoura University Egypt.
Ayman Z ElsamanoudyDepartment of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Mansoura University Egypt.
Ahmed N HelalyDepartment of Forensic Medicine and Toxicology, Faculty of Medicine, Mansoura University Egypt.
Mansoura University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was designed to demonstrate the histopathological and biochemical changes in rat cerebral cortex and testicles due to chronic usage of tramadol and the effect of withdrawal. Thirty adult male rats weighing 180-200 gm were classified into three groups; group I (control group) group II (10 rats received 50 mg/kg/day of tramadol intraperitoneally for 4 weeks) and group III (10 rats received the same dose as group II then kept 4 weeks later to study the effect of withdrawal). Histological and immunohistochemical examination of cerebral cortex and testicular specimens for Bax (apoptotic marker) were carried out. Testicular specimens were examined by electron microscopy. RT-PCR after RNA extraction from both specimens was done for the genes of some antioxidant enzymes .Also, malondialdehyde (MDA) was measured colourimetrically in tissues homogenizate. The results of this study demonstrated histological changes in testicular and brain tissues in group II compared to group I with increased apoptotic index proved by increased Bax expression. Moreover in this group increased MDA level with decreased gene expression of the antioxidant enzymes revealed oxidative stress. Group III showed signs of improvement but not returned completely normal. It could be concluded that administration of tramadol have histological abnormalities on both cerebral cortex and testicular tissues associated with oxidative stress in these organs. Also, there is increased apoptosis in both organs which regresses with withdrawal. These findings may provide a possible explanation for delayed fertility and psychological changes associated with tramadol abuse.

Indexed as

AnimalsAntioxidantsApoptosisbcl-2-Associated X ProteinCerebral CortexMaleMalondialdehydeModels, AnimalOxidative StressRatsTestisTramadolAntioxidantsBax protein, ratbcl-2-Associated X ProteinMalondialdehydeTramadolapoptosisBaxbrainoxidative stresstestisTramadol

Identifiers

PMID25550769
PMCPMC4270590
OpenAlexW571795309

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.