Evidence map›Paper›PMID 29674601›Full record

ArticlePsychiatry investigation2018

The Relationship between the Number of Manic Episodes and Oxidative Stress Indicators in Bipolar Disorder.

Süleyman Akarsu, Abdullah Bolu, Emre Aydemir, Selma Bozkurt Zincir, Yasemin Gülcan Kurt, Serkan Zincir, Murat Erdem, Özcan Uzun

Open access · diamondAbstract read
In one paragraph

Article in Psychiatry investigation, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
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  13. The ALA5/ALA6/ALA7 repeat polymorphisms of the glutathione peroxidase-1 (GPx1) gene and autism spectrum disorder.Autism research : official journal of the International Society for Autism Research · 2022
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  14. Review
  15. Targeting Mitochondrial Dysfunction for Bipolar Disorder.Current topics in behavioral neurosciences · 2021
    Review
  16. 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

8 authors at 4 institutions in 1 country.

Süleyman AkarsuDepartment of Psychiatry, Freelance Physician, Hatay, Turkey.
Abdullah BoluDepartment of Psychiatry, Gülhane Education and Research Hospital, Ankara, Turkey.
Emre AydemirDepartment of Psychiatry, Beytepe State Hospital, Ankara, Turkey.
Selma Bozkurt ZincirDepartment of Psychiatry, Medical Park Göztepe Hospital Complex, Istanbul, Turkey.
Yasemin Gülcan KurtDepartment of Biochemistry, Freelance Physician, Ankara, Turkey.
Serkan ZincirDepartment of Psychiatry, Eskişehir State Hospital, Eskişehir, Turkey.
Murat ErdemDepartment of Psychiatry, Bilted Psychiatry Treatment Center, Ankara, Turkey.
Özcan UzunDepartment of Psychiatry, Gülhane Education and Research Hospital, Ankara, Turkey.
Eskişehir City Hospital · TRGülhane Askerî Tıp Akademisi · TRBeytepe Asker Hastanesi · TRPsychiatric Association of Turkey · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveBipolar disorder (BD) is a chronic mood disorder characterized by recurrent episodes that has a lifetime prevalence of 0.4- 5.5%. The neurochemical mechanism of BD is not fully understood. Oxidative stress in neurons causes lipid peroxidation in proteins associated with neuronal membranes and intracellular enzymes and it may lead to dysfunction in neurotransmitter reuptake and enzyme activities. These pathological processes are thought to occur in brain regions associated with affective functions and emotions in BD. The relationship between the number of manic episodes and total oxidant-antioxidant capacity was investigated in this study.

methodsEighty-two BD patients hospitalized due to manic symptoms and with no episodes of depression were enrolled in the study. Thirty of the 82 patients had had their first episode of mania, and the other 52 patients had had two or more manic episodes. The control group included 45 socio-demographically matched healthy individuals. Serum total antioxidant capacity (TAC) and total oxidant capacity (TOC) measurements of the participants were performed. The oxidative stress index (OSI) was calculated by TOC/TAC.

resultsThere were no significant differences in OSI scores between BD patients with first-episode mania and BD patients with more than one manic episode. However, OSI scores in both groups were significantly higher than in the control group. TOC levels of BD patients with first-episode mania were found to be significantly higher than TOC levels of BD patients with more than one manic episode and healthy controls. There were no significant differences in TAC levels between BD patients with first-episode mania and BD patients with more than one manic episode. TAC levels in both groups were significantly higher than in the control group.

conclusionSignificant changes in oxidative stress indicators were observed in this study, confirming previous studies. Increased levels of oxidants were shown with increased disease severity rather than with the number of manic episodes. Systematic studies, including of each period of the disorder, are needed for using the findings indicating deterioration of oxidative parameters.

Indexed as

AntioxidantBipolar disorderManic episodeOxidative stress

Identifiers

PMID29674601
PMCPMC5975995
OpenAlexW2800685153

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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.