Evidence map›Paper›PMID 30321868›Full record

ArticleMedical principles and practice : international journal of the Kuwait University, Health Science Centre2019

Glutathione S-Transferases and Cytochrome P450 Enzyme Expression in Patients with Intracranial Tumors: Preliminary Report of 55 Patients.

Cahit Kural, Arzu Kaya Kocdogan, Gulcin Güler Şimşek, Serpil Oğuztüzün, Pınar Kaygın, Irmak Yılmaz, Tugbag Bayram, Yusuf Izci

Open access · diamondAbstract readComparative Study
In one paragraph

Article in Medical principles and practice : international journal of the Kuwait University, Health Science Centre, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

8 citing papers in PubMed, 22 citations in OpenAlex.

  1. Unveiling the Role of GlutathioneACS pharmacology & translational science · 2026
    Review
  2. Methylglyoxal Formation-Metabolic Routes and Consequences.Antioxidants (Basel, Switzerland) · 2025
    Review
  3. Article
  4. Frontiers in plant science · 2024
    Article
  5. Glutathione-Related Enzymes and Proteins: A Review.Molecules (Basel, Switzerland) · 2023
    Review
  6. Article
  7. Glutathione S-Transferases in Cancer.Antioxidants (Basel, Switzerland) · 2021
    Review
  8. Review
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 3 institutions in 1 country.

Cahit KuralDepartment of Neurosurgery, University of Health Sciences and Gulhane Education and Research Hospital, Ankara, Turkey.
Arzu Kaya KocdoganDepartment of Biology, Kırıkkale University, Kırıkkale, Turkey.
Gulcin Güler ŞimşekDepartment of Pathology, University of Health Sciences and Kecioren Education and Research Hospital, Ankara, Turkey.
Serpil OğuztüzünDepartment of Biology, Kırıkkale University, Kırıkkale, Turkey.
Pınar KaygınDepartment of Biology, Kırıkkale University, Kırıkkale, Turkey.
Irmak YılmazDepartment of Biology, Kırıkkale University, Kırıkkale, Turkey.
Tugbag BayramDepartment of Biology, Kırıkkale University, Kırıkkale, Turkey.
Yusuf IzciDepartment of Neurosurgery, University of Health Sciences and Gulhane Education and Research Hospital, Ankara, Turkey, yusufizci@yahoo.com.
Kırıkkale University · TRSağlık Bilimleri Üniversitesi · TRGülhane Askerî Tıp Akademisi · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveIntracranial tumors are one of the most frightening and difficult-to-treat tumor types. In addition to surgery, protocols such as chemotherapy and radiotherapy also take place in the treatment. Glutathione S-transferase (GST) and cytochrome P450 (CYP) enzymes are prominent drug-metabolizing enzymes in the human body. The aim of this study is to show the expression of GSTP1, GSTM1, CYP1A1, and CYP1B1 in different types of brain tumors and compare our results with those in the literature. SUBJECTS AND

methodsThe expression of GSTP1, GSTM1, CYP1A1, and CYP1B1 was analyzed using immunostaining in 55 patients with intracranial tumors in 2016-2017. For GST and CYP expression in normal brain tissue, samples of a portion of surrounding normal brain tissue as well as a matched far neighbor of tumor tissue were used. The demographic features of the patients were documented and the expression results compared.

resultsThe mean age of the patients was 46.72 years; 29 patients were female and 26 were male. Fifty-seven specimens were obtained from 55 patients. Among them, meningioma was diagnosed in 12, metastases in 12, glioblastoma in 9, and pituitary adenoma in 5. The highest GSTP1, GSTM1, and CYP-1A1 expressions were observed in pituitary adenomas. The lowest GSTP1 expression was detected in glioblastomas and the lowest CYP1B1 expression in pituitary adenomas.

conclusionGSTP1 and CYP expression is increased in intracranial tumors. These results should be confirmed with a larger series and different enzyme subtypes.

Indexed as

AdolescentAdultAgedBiomarkersBrain NeoplasmsChildCytochrome P-450 CYP1A1Cytochrome P-450 CYP1B1Cytochrome P-450 Enzyme SystemFemaleGlutathione S-Transferase piGlutathione TransferaseHumansMaleMiddle AgedTurkeyBiomarkersCytochrome P-450 CYP1A1Cytochrome P-450 CYP1B1Cytochrome P-450 Enzyme SystemGlutathione S-Transferase piGlutathione TransferaseGSTP1 protein, humanBrainCytochrome p450Glutathione-S-transferaseTumor biology

Identifiers

PMID30321868
PMCPMC6558316
OpenAlexW2895967079

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.