Evidence map›Paper›PMID 26477793›Full record

ArticleBipolar disorders2015

Decreased brain PME/PDE ratio in bipolar disorder: a preliminary (31) P magnetic resonance spectroscopy study.

Xian-Feng Shi, Paul J Carlson, Young-Hoon Sung, Kristen K Fiedler, Lauren N Forrest, Tracy L Hellem, Rebekah S Huber, Seong-Eun Kim, Chun Zuo, Eun-Kee Jeong and 2 more

Abstract read
In one paragraph

Article in Bipolar disorders, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.1field-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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

  1. Brain lactate and pH in schizophrenia and bipolar disorder: a systematic review of findings from magnetic resonance studies.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Pooled it
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  19. Magnetic resonance in medicine · 2018
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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

12 authors at 4 institutions in 3 countries.

Xian-Feng ShiThe Brain Institute, Salt Lake City, UT, USA.
Paul J CarlsonThe Brain Institute, Salt Lake City, UT, USA.
Young-Hoon SungThe Brain Institute, Salt Lake City, UT, USA.
Kristen K FiedlerThe Brain Institute, Salt Lake City, UT, USA.
Lauren N ForrestThe Brain Institute, Salt Lake City, UT, USA.
Tracy L HellemThe Brain Institute, Salt Lake City, UT, USA.
Rebekah S HuberThe Brain Institute, Salt Lake City, UT, USA.
Seong-Eun KimDepartment of Radiology, University of Utah, Salt Lake City, UT, USA.
Chun ZuoBrain Imaging Center, McLean Hospital, Belmont, MA, USA.
Eun-Kee JeongDepartment of Radiology, University of Utah, Salt Lake City, UT, USA.
Perry F RenshawThe Brain Institute, Salt Lake City, UT, USA.
Douglas G KondoThe Brain Institute, Salt Lake City, UT, USA.
Allen Institute for Brain Science · USUniversity of Utah · USImaging Center · USVA Salt Lake City Healthcare System · US

Funding

PROTON MRSI STUDIES OF BIPOLAR DISORDERR01MH058681 · NIMH · UNIVERSITY OF UTAH · PI RENSHAW, PERRY FRANKLIN · 1999 to 2009
$3.0M
Mentoring in Drug Abuse NeuroimagingK05DA031247 · NIDA · UNIVERSITY OF UTAH · PI RENSHAW, PERRY FRANKLIN · 2011 to 2015
$661k
31P magnetization transfer study of bipolar disorderR21MH081076 · NIMH · MCLEAN HOSPITAL · PI ZUO, CHUN S · 2009 to 2010
$435k
Brain Chemistry and Altitude in Bipolar DisorderI01CX000812 · VA · VA SALT LAKE CITY HEALTHCARE SYSTEM · PI RENSHAW, PERRY FRANKLIN · 2013 to 2023
–
CSRD VA I01 CX000812NIDA NIH HHS K05 DA031247NIMH NIH HHS MH058681NIMH NIH HHS R01 MH058681NIMH NIH HHS R21 MH081076NIMH NIH HHS R21MH081076
6 · The paper itself

Abstract

objectivesThe aim of the present study was to measure brain phosphorus-31 magnetic resonance spectroscopy ((31) P MRS) metabolite levels and the creatine kinase reaction forward rate constant (kf ) in subjects with bipolar disorder (BD).

methodsSubjects with bipolar euthymia (n = 14) or depression (n = 11) were recruited. Healthy comparison subjects (HC) (n = 23) were recruited and matched to subjects with BD on age, gender, and educational level. All studies were performed on a 3-Tesla clinical magnetic resonance imaging system using a (31) P/(1) H double-tuned volume head coil. (31) P spectra were acquired without (1) H-decoupling using magnetization-transfer image-selected in vivo spectroscopy. Metabolite ratios from a brain region that includes the frontal lobe, corpus callosum, thalamus, and occipital lobe are expressed as a percentage of the total phosphorus (TP) signal. Brain pH was also investigated.

resultsBeta-nucleoside-triphosphate (β-NTP/TP) in subjects with bipolar depression was positively correlated with kf (p = 0.039, r(2) = 0.39); similar correlations were not observed in bipolar euthymia or HC. In addition, no differences in kf and brain pH were observed among the three diagnostic groups. A decrease in the ratio of phosphomonoesters to phosphodiesters (PME/PDE) was observed in subjects with bipolar depression relative to HC (p = 0.032). We also observed a trend toward an inverse correlation in bipolar depression characterized by decreased phosphocreatine and increased depression severity.

conclusionsIn our sample, kf was not altered in the euthymic or depressed mood state in BD. However, decreased PME/PDE in subjects with bipolar depression was consistent with differences in membrane turnover. These data provide preliminary support for alterations in phospholipid metabolism and mitochondrial function in bipolar depression.

Indexed as

Bipolar DisorderAdultCorpus CallosumDepressionFemaleFrontal LobeHumansMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleMitochondriaPhosphocreatinePhospholipidsPhosphorus IsotopesPsychiatric Status Rating ScalesThalamusPhosphocreatinePhospholipidsPhosphorus Isotopes31P MRSbipolar disordermagnetization transfer

Identifiers

PMID26477793
PMCPMC5495548
OpenAlexW2097197370

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.