Evidence map›Paper›PMID 22816670›Full record

ArticleBipolar disorders2012

Frontal lobe bioenergetic metabolism in depressed adolescents with bipolar disorder: a phosphorus-31 magnetic resonance spectroscopy study.

Xian-Feng Shi, Douglas G Kondo, Young-Hoon Sung, Tracy L Hellem, Kristen K Fiedler, Eun-Kee Jeong, Rebekah S Huber, Perry F Renshaw

Open access · greenAbstract read
In one paragraph

Article in Bipolar disorders, 2012. 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
1.7field-weighted citation impact, top 18% 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, 39 citations in OpenAlex.

  1. Purinergic system dysfunction in mood disorders: a key target for developing improved therapeutics.Progress in neuro-psychopharmacology & biological psychiatry · 2015
    Pooled it
  2. Trial
  3. Article
  4. Biomarkers of bipolar disorder in omics and neuroimaging.Journal of pharmaceutical analysis · 2025
    Review
  5. Article
  6. Article
  7. Arterial Stiffness in Patients with Bipolar Disorder.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. A review of MR spectroscopy studies of pediatric bipolar disorder.AJNR. American journal of neuroradiology · 2014
    Review
  19. Article
  20. 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 3 institutions in 1 country.

Xian-Feng ShiThe Brain Institute, University of Utah, 383 Colorow Drive, Salt Lake City, UT 84108, USA. xianfeng.shi@hsc.utah.edu
Douglas G Kondo
Young-Hoon Sung
Tracy L Hellem
Kristen K Fiedler
Eun-Kee Jeong
Rebekah S Huber
Perry F Renshaw
Allen Institute for Brain Science · USUniversity of Utah · USMental Illness Research, Education and Clinical Centers · 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
NIDA NIH HHS K05 DA031247NIMH NIH HHS MH058681NIMH NIH HHS R01 MH058681
6 · The paper itself

Abstract

objectivesTo compare the concentrations of high-energy phosphorus metabolites associated with mitochondrial function in the frontal lobe of depressed adolescents with bipolar disorder (BD) and healthy controls (HC).

methodsWe used in vivo phosphorus-31 magnetic resonance spectroscopy ((31) P-MRS) at 3 Tesla to measure phosphocreatine (PCr), beta-nucleoside triphosphate (β-NTP), inorganic phosphate (Pi), and other neurometabolites in the frontal lobe of eight unmedicated and six medicated adolescents with bipolar depression and 24 adolescent HCs.

resultsAnalysis of covariance, including age as a covariate, revealed differences in PCr (p=0.037), Pi (p=0.017), and PCr/Pi (p=0.002) between participant groups. Percentage neurochemical differences were calculated with respect to mean metabolite concentrations in the HC group. Post-hoc Tukey-Kramer analysis showed that unmedicated BD participants had decreased Pi compared with both HC (17%; p=0.038) and medicated BD (24%; p=0.022). The unmedicated BD group had increased PCr compared with medicated BD (11%; p=0.032). The PCr/Pi ratio was increased in unmedicated BD compared with HC (24%; p=0.013) and with medicated BD (39%; p=0.002). No differences in β-NTP or pH were observed.

conclusionsOur results support the view that frontal lobe mitochondrial function is altered in adolescent BD and may have implications for the use of Pi as a biomarker. These findings join volumetric studies of the amygdala, and proton MRS studies of n-acetyl aspartate in pointing to potential differences in neurobiology between pediatric and adult BD.

Indexed as

AdolescentBipolar DisorderCase-Control StudiesDepressionEnergy MetabolismFemaleFrontal LobeHumansImage Processing, Computer-AssistedMagnetic Resonance SpectroscopyMaleMitochondriaPhosphatesPhosphocreatinePhosphorus IsotopesPolyphosphatesPhosphatesPhosphocreatinePhosphorus IsotopesPolyphosphates

Identifiers

PMID22816670
PMCPMC4651435
OpenAlexW1529625339

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.