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Record W4298352137 · doi:10.26443/msurj.v4i1.73

Investigation of the role of heme oxygenase-1 in β-thalassemia pathophysiology

2009· article· en· W4298352137 on OpenAlexaff
Arielle Mendel, Daniel Garcia‐Santos, Prem Ponka

Bibliographic record

VenueMcGill Science Undergraduate Research Journal · 2009
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicHeme Oxygenase-1 and Carbon Monoxide
Canadian institutionsJewish General HospitalMcGill University
Fundersnot available
KeywordsHeme oxygenaseHemeGlobinThalassemiaOxidative stressDownregulation and upregulationHemoglobinPathophysiologyChemistryCellBiologyMolecular biologyCell biologyBiochemistryGeneEndocrinologyEnzymeGenetics

Abstract

fetched live from OpenAlex


 
 
 
 β -thalassemia is an inherited disorder characterized by impaired hemoglobin synthesis in developing erythrocytes due to unbalanced globin chain production, resulting in severe oxidative damage to cells. Heme oxygenase-1 (HO-1) has been shown to have antioxidant benefits and is upregulated in response to oxidative stress; thus increased HO-1 levels could serve as an indicator of β-thalassemia pathophysiology. To test this hypothesis, we created a cell culture model of β-thalassemia by decreasing β globin expression in murine erythroleukemic (MEL) cells using short interfering RNA (siRNA). An increase in HO-1 protein expression, along with a decrease in heme levels was observed in cells where β globin reduction was sustained for 96 hours. Further investigation is needed to determine the role that HO-1 plays in normal erythroid development and confirm the observed relationship between β globin reduction and increased HO-1 expression, however, our results provide evidence that this method serves as an effective and novel cell model of β thalassemia.
 
 
 

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)0.003
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.058
Threshold uncertainty score0.315

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0030.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0010.000
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 head0.025
GPT teacher head0.308
Teacher spread0.283 · 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 designBench or experimental
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

Citations2
Published2009
Admission routes1
Has abstractyes

Explore more

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