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Record W2043729775 · doi:10.1159/000167062

Abnormal Renal Prostaglandin Production during the Evolution of Chronic Nephropathy

2008· article· en· W2043729775 on OpenAlexaff
Marcel Lebel, John H. Grose

Bibliographic record

VenueAmerican Journal of Nephrology · 2008
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicMetabolism and Genetic Disorders
Canadian institutionsUniversité LavalHôtel-Dieu de Québec
Fundersnot available
KeywordsMedicineNephropathyKidney diseaseProstaglandinInternal medicineEndocrinologyUrologyDiabetes mellitus

Abstract

fetched live from OpenAlex

To investigate the role of renal prostaglandins (PGs) in the evolution of kidney parenchymal disease, PGE2 and PGF2a excretion rates were measured in 62 subjects (22 control subjects, 24 patients with different forms of nephropathy and varying degrees of renal failure, and 16 patients with end-stage kidney disease on chronic hemodialysis). Patients with kidney disease and severe renal failure (inulin clearance less than 25 ml/min) showed significant decreases in urinary PGE2 and PGF2a (p less than 0.05 for both PGs), and the values were markedly diminished in patients with end-stage renal failure on chronic hemodialysis. Conversely, in patients with nephropathy and normal renal function, urinary PGE2 was slightly elevated compared to age- and sex-matched control subjects. A significant correlation (r = 0.74, p less than 0.01) was found between inulin clearance and PGF2a in the group of 24 patients with chronic renal failure, both not between PGE2 and inulin clearance. These results indicate that except for patients at the early stage of kidney disease the renal excretion of PGE2 and PGF2a appears greatly diminished in parenchymal renal lesion with severe renal failure and in end-stage kidney disease. The latter phenomenon may be the consequence of diminished functional renal mass.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.001
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
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 head0.004
GPT teacher head0.206
Teacher spread0.202 · 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 source (direct Gemma or distilled Codex), 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

Citations18
Published2008
Admission routes1
Has abstractyes

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