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Record W4200296789 · doi:10.1101/2021.12.16.472644

Sex-specific Effects of SGLT2 Inhibition in a Kidney with Reduced Nephron Number: Modeling and Analysis

2021· preprint· en· W4200296789 on OpenAlexaff
Anita T. Layton

Bibliographic record

VenuebioRxiv (Cold Spring Harbor Laboratory) · 2021
Typepreprint
Languageen
FieldMedicine
TopicChronic Kidney Disease and Diabetes
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsNephronEndocrinologyInternal medicineKidneyRenal functionDistal convoluted tubuleReabsorptionNatriuresisDiabetes mellitusCotransporterDiuresisGlomerular hyperfiltrationRenal glucose reabsorptionRenal sodium reabsorptionGlycosuriaRenal physiologyHomeostasisConvoluted tubuleChemistryMedicineType 2 diabetesSodiumDiabetic nephropathy

Abstract

fetched live from OpenAlex

Abstract The kidney plays an essential role in regulating the homeostasis of electrolytes, acid-base species, and fluids. Kidney structure and function are significantly affected in diabetes. These pathophysiological changes include glomerular hyperfiltration and tubular hypertrophy, and ultimately leading to diabetic kidney disease. A class of medications that have shown promise in slowing the progression to diabetic kidney disease are the sodium-glucose cotransporter 2 (SGLT2) inhibitors. SGLT2 inhibitors target Na + and glucose reabsorption along the proximal convoluted tubule, enhance urinary glucose, Na + and fluid excretion, and lower hyperglycemia in diabetes. We postulate that both diabetes-induced and SGLT2 inhibition-induced changes in kidney may exhibit significant sex differences, because the distribution of renal transporters along the nephron may be markedly different between women and men, as recently shown in rodents. The goals of this study are to (i) analyze how kidney function is altered in male and female patients with diabetes, (ii) assess the renal effects, in women and men, of an anti-hyperglycemic therapy that inhibits the sodium-glucose cotransporter 2 (SGLT2) in the proximal convoluted tubules, and (iii) study how those renal effects are altered in uninephrectomy. To accomplish these goals, we have developed computational models of kidney function, separate for male and female patients with diabetes and/or uninephredctomy. The simulation results indicate that by inducing osmotic diuresis in the proximal tubules, SGLT2 inhibition reduces paracellular transport, eventually leading to diuresis and natriuresis.

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)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.020
Threshold uncertainty score0.040

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0030.000

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 head0.008
GPT teacher head0.218
Teacher spread0.209 · 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 designSimulation or modeling
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

Citations0
Published2021
Admission routes1
Has abstractyes

Explore more

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