Evidence mapPaperPMID 38439675Full record

ReviewNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association2024

How can inhibition of glucose and sodium transport in the early proximal tubule protect the cardiorenal system?

Volker Vallon

Open access · greenAbstract readReview
In one paragraph

Review in Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
8.9field-weighted citation impact, top 2% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

  1. Observational
  2. Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Risk of End-Stage Kidney Disease and Topiramate Use.Kidney international reports · 2025
    Article
  8. Article
  9. Review
  10. Beyond SGLT2: proximal tubule transporters as potential drug targets for chronic kidney disease.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Review
  11. Article
  12. Chronic kidney disease.Nature reviews. Disease primers · 2025
    Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. 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

1 author at 1 institution in 1 country.

Volker VallonDivision of Nephrology and Hypertension, Department of Medicine, University of California San Diego, La Jolla, CA, USA.ORCID 0000-0002-9211-2063
University of California San Diego · US

Funding

UAB-UCSD O'Brien Center for Acute Kidney Injury ResearchU54DK137307 · UNIVERSITY OF ALABAMA AT BIRMINGHAM · 2025 to 2025
$872k
Glomerular and Tubular Function in the Recovering KidneyR01DK132690 · NIDDK · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · 2024 to 2025
$814k
Significance of Tubuloglomerular Feedback in SGLT1 and SGLT2 Inhibition in Diabetic Kidney DiseaseR01DK134616 · NIDDK · BOSTON MEDICAL CENTER · 2024 to 2025
$770k
Glomerular and Tubular Function in the Diabetic KidneyR01DK112042 · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · 2025 to 2025
$475k
NIA NIH HHS RF1 AG061296NIDDK NIH HHS R01 DK112042NIDDK NIH HHS R01 DK132690NIDDK NIH HHS R01 DK134616NIDDK NIH HHS U54 DK137307NIH HHS R01 DK112042University of Alabama at Birmingham P54 DK137307U.S. Department of Veterans Affairs
6 · The paper itself

Abstract

What mechanisms can link the inhibition of sodium-glucose cotransporter 2 (SGLT2) in the early proximal tubule to kidney and heart protection in patients with and without type 2 diabetes? Due to physical and functional coupling of SGLT2 to other sodium and metabolite transporters in the early proximal tubule (including NHE3, URAT1), inhibitors of SGLT2 (SGLT2i) reduce reabsorption not only of glucose, inducing osmotic diuresis, but of other metabolites plus of a larger amount of sodium than expected based on SGLT2 inhibition alone, thereby reducing volume retention, hypertension and hyperuricemia. Metabolic adaptations to SGLT2i include a fasting-like response, with enhanced lipolysis and formation of ketone bodies that serve as additional fuel for kidneys and heart. Making use of the physiology of tubulo-glomerular communication, SGLT2i functionally lower glomerular capillary pressure and filtration rate, thereby reducing physical stress on the glomerular filtration barrier, tubular exposure to albumin and nephrotoxic compounds, and the oxygen demand for reabsorbing the filtered load. Together with reduced gluco-toxicity in the early proximal tubule and better distribution of transport work along the nephron, SGLT2i can preserve tubular integrity and transport function and, thereby, glomerular filtration rate in the long-term. By shifting transport downstream, SGLT2i may simulate systemic hypoxia at the oxygen sensors in the deep cortex/outer medulla, which stimulates erythropoiesis and, together with osmotic diuresis, enhances hematocrit and thereby improves oxygen delivery to all organs. The described SGLT2-dependent effects may be complemented by off-target effects of SGLT2i on the heart itself and on the microbiome formation of cardiovascular-effective uremic toxins.

Indexed as

GlucoseKidney Tubules, ProximalSodium-Glucose Transporter 2 InhibitorsAnimalsDiabetes Mellitus, Type 2HumansSodiumSodium-Glucose Transporter 2GlucoseSodiumSodium-Glucose Transporter 2Sodium-Glucose Transporter 2 InhibitorsfastingGFRnatriuresisproximal tubuleSGLT2

Identifiers

PMID38439675
PMCPMC11427065
OpenAlexW4392529604

What Socratic holds

Textmetadata
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 Socratic graph.