Evidence map›Paper›PMID 25480359›Full record

ArticleSchizophrenia research2015

Investigation of Heschl's gyrus and planum temporale in patients with schizophrenia and bipolar disorder: a proton magnetic resonance spectroscopy study.

M I Atagün, E M Şıkoğlu, S S Can, G Karakaş-Uğurlu, S Ulusoy-Kaymak, A Çayköylü, O Algın, M L Phillips, C M Moore, D Öngür

Open access · greenAbstract read
In one paragraph

Article in Schizophrenia research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 11% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Glutamatergic dysfunction in Schizophrenia.Translational psychiatry · 2022
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Brain oscillations in bipolar disorder and lithium-induced changes.Neuropsychiatric disease and treatment · 2016
    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

10 authors at 6 institutions in 2 countries.

M I AtagünYıldırım Beyazıt University, Faculty of Medicine, Department of Psychiatry, Ankara, Turkey; Ankara Atatürk Training and Education Hospital, Psychiatry Clinic, Ankara, Turkey. Electronic address: miatagun@ybu.edu.tr.
E M ŞıkoğluCenter for Comparative NeuroImaging, University of Massachusetts Medical School, Worcester, MA, USA; Department of Psychiatry, University of Massachusetts Medical School, Worcester, MA, USA.
S S CanYıldırım Beyazıt University, Faculty of Medicine, Department of Psychiatry, Ankara, Turkey; Ankara Atatürk Training and Education Hospital, Psychiatry Clinic, Ankara, Turkey.
G Karakaş-UğurluYıldırım Beyazıt University, Faculty of Medicine, Department of Psychiatry, Ankara, Turkey; Ankara Atatürk Training and Education Hospital, Psychiatry Clinic, Ankara, Turkey.
S Ulusoy-KaymakAnkara Atatürk Training and Education Hospital, Psychiatry Clinic, Ankara, Turkey.
A ÇayköylüYıldırım Beyazıt University, Faculty of Medicine, Department of Psychiatry, Ankara, Turkey; Ankara Atatürk Training and Education Hospital, Psychiatry Clinic, Ankara, Turkey.
O AlgınAnkara Atatürk Training and Education Hospital, Radiology, Ankara, Turkey; Bilkent University, National MR Research Center, Bilkent, Ankara, Turkey.
M L PhillipsUniversity of Pittsburgh, Medical School, Department of Psychiatry, Pittsburgh, PA, USA.
C M MooreCenter for Comparative NeuroImaging, University of Massachusetts Medical School, Worcester, MA, USA; Department of Psychiatry, University of Massachusetts Medical School, Worcester, MA, USA; Department of Radiology, University of Massachusetts Medical School, Worcester, MA, USA.
D ÖngürHarvard Medical School, Department of Psychiatry, Boston, MA, USA; McLean Hospital, Psychotic Disorders Division, Belmont, MA, USA.
Ankara Yıldırım Beyazıt University · TRAnkara Atatürk Eğitim ve Araştırma Hastanesi · TRUniversity of Massachusetts Chan Medical School · USBilkent University · TRHarvard University · USUniversity of Pittsburgh · US

Funding

Probing the White Matter in Schizophrenia Using Novel MRS TechniquesR01MH094594 · NIMH · MCLEAN HOSPITAL · PI ONGUR, DOST · 2011 to 2015
$1.8M
Glutamine and Glutamate in Children and Adolescents with Bipolar DisorderR01MH073998 · NIMH · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI MOORE, CONSTANCE M · 2008 to 2012
$1.5M
NIMH NIH HHS MH073998NIMH NIH HHS MH094594NIMH NIH HHS R01 MH073998NIMH NIH HHS R01 MH094594
6 · The paper itself

Abstract

backgroundSuperior temporal cortices include brain regions dedicated to auditory processing and several lines of evidence suggest structural and functional abnormalities in both schizophrenia and bipolar disorder within this brain region. However, possible glutamatergic dysfunction within this region has not been investigated in adult patients.

methodsThirty patients with schizophrenia (38.67±12.46years of age), 28 euthymic patients with bipolar I disorder (35.32±9.12years of age), and 30 age-, gender- and education-matched healthy controls were enrolled. Proton magnetic resonance spectroscopy data were acquired using a 3.0T Siemens MAGNETOM TIM Trio MR system and single voxel Point REsolved Spectroscopy Sequence (PRESS) in order to quantify brain metabolites within the left and right Heschl's gyrus and planum temporale of superior temporal cortices.

resultsThere were significant abnormalities in glutamate (Glu) (F(2,78)=8.52, p<0.0001), N-acetyl aspartate (tNAA) (F(2,81)=5.73, p=0.005), creatine (tCr) (F(2,83)=5.91, p=0.004) and inositol (Ins) (F(2,82)=8.49, p<0.0001) concentrations in the left superior temporal cortex. In general, metabolite levels were lower for bipolar disorder patients when compared to healthy participants. Moreover, patients with bipolar disorder exhibited significantly lower tCr and Ins concentrations when compared to schizophrenia patients. In addition, we have found significant correlations between the superior temporal cortex metabolites and clinical measures.

conclusionAs the left auditory cortices are associated with language and speech, left hemisphere specific abnormalities may have clinical significance. Our findings are suggestive of shared glutamatergic abnormalities in schizophrenia and bipolar disorder.

Indexed as

AdultAnalysis of VarianceAspartic AcidAuditory CortexBipolar DisorderCreatineFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedProton Magnetic Resonance SpectroscopySchizophreniaTemporal LobeYoung AdultAspartic AcidCreatineN-acetylaspartateBipolar disorderGlutamateGlutamineMagnetic resonance spectroscopySchizophreniaSuperior temporal cortex

Identifiers

PMID25480359
PMCPMC4308441
OpenAlexW2145490238

What OpenQuestion holds

Textmetadata
LicenceTDM
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.