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Record W2001110112 · doi:10.1016/s0924-9338(09)70248-2

Mitochondrial Dysfunction and Oxidative Stress in Bipolar Disorder

2009· article· en· W2001110112 on OpenAlexaff
Ana C. Andreazza

Bibliographic record

VenueEuropean Psychiatry · 2009
Typearticle
Languageen
FieldMedicine
TopicBipolar Disorder and Treatment
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsOxidative stressOxidative phosphorylationLipid peroxidationMitochondrionBipolar disorderBiologyInternal medicineChemistryEndocrinologyCell biologyBiochemistryMedicineLithium (medication)

Abstract

fetched live from OpenAlex

While we continue to refine our understanding of the pathophysiology of bipolar disorder (BD), several hypotheses have been postulated including a role for monoamines, gamma-amino butyric acid, glutamate, and second messenger signaling pathways. Recently, mitochondrial dysfunction and oxidative stress have been identified by a number of studies, as an important etiological factor in this disorder. Mitochondria play a crucial role in ATP production through oxidative phosphorylation, a process carried out by the electron transport chain (ETC) complexes. During the transfer of electrons along this ETC, the ROS can be generated, especially in complex I and III4. Growing body of evidence suggests the association of mitochondrial dysfunction and BD. Recent DNA microarray analysis in post-mortem frontal cortex and hippocampus revealed that the expression of several mRNAs coding for ETC complexes I-V subunits was decreased in subjects with BD. Supporting the key involvement of oxidative damage in BD, assays conducted with peripheral blood samples have demonstrated that BD is associated with alterations in antioxidant enzymes and increased lipid peroxidation. Recently we found that oxidative damage to lipid is present in the frontal cortex of BD subjects. A meta-analysis suggested that the levels of lipid peroxidation are elevated in BD providing support for oxidative stress hypothesis of BD. Furthermore, BD subjects showed increased DNA damage, as well as, upregulation of apoptotic genes. These data not only suggest that oxidative mechanisms may form unifying common pathogenic pathways in psychiatric disorders, but also introduce new targets for the development of therapeutic interventions.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.055
Threshold uncertainty score0.481

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.007
GPT teacher head0.240
Teacher spread0.233 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations7
Published2009
Admission routes1
Has abstractyes

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