Evidence map›Paper›PMID 20616166›Full record

ArticleJournal of the American Society of Nephrology : JASN2011

SGLT2 mediates glucose reabsorption in the early proximal tubule.

Volker Vallon, Kenneth A Platt, Robyn Cunard, Jana Schroth, Jean Whaley, Scott C Thomson, Hermann Koepsell, Timo Rieg

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the American Society of Nephrology : JASN, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 303 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
303citing papers in PubMed, 2 pooled it
11.6field-weighted citation impact, top 1% 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

303 citing papers in PubMed, 2 syntheses or guidelines pooled it, 545 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Trial
  4. Dapagliflozin Beyond Glucose Lowering: Mechanisms of Renal and Systemic Protection.Pathophysiology : the official journal of the International Society for Pathophysiology · 2026
    Review
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  11. Pharmacokinetics of Bexagliflozin After Intravenous and Oral Administration in Cats.Journal of veterinary pharmacology and therapeutics · 2026
    Article
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  14. Review
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243 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Volker VallonDepartment of Medicine, University of California San Diego, VA San Diego Healthcare System, 3350 La Jolla Village Drive (9151), San Diego, CA 92161, USA. vvallon@ucsd.edu
Kenneth A Platt
Robyn Cunard
Jana Schroth
Jean Whaley
Scott C Thomson
Hermann Koepsell
Timo Rieg
University of California, San Diego · US

Funding

UAB-UCSD O'Brien Core Center for Acute Kidney Injury ResearchP30DK079337 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI AGARWAL, ANUPAM · 2008 to 2022
$18.3M
GLOMERULAR AND TUBULAR FUNCTION IN THE DIABETIC KIDNEYR01DK056248 · NIDDK · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI THOMSON, SCOTT CULVER · 1999 to 2014
$4.6M
AUTOREGULATION OF GLOMERULAR FILTRATION RATER01DK028602 · NIDDK · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI BLANTZ, ROLAND C · 1986 to 2011
$3.9M
NIDDK NIH HHS DK28602NIDDK NIH HHS DK56248NIDDK NIH HHS P30 DK079337NIDDK NIH HHS P30DK079337NIDDK NIH HHS R01 DK028602NIDDK NIH HHS R01 DK056248
6 · The paper itself

Abstract

Mutations in the gene encoding for the Na(+)-glucose co-transporter SGLT2 (SLC5A2) associate with familial renal glucosuria, but the role of SGLT2 in the kidney is incompletely understood. Here, we determined the localization of SGLT2 in the mouse kidney and generated and characterized SGLT2-deficient mice. In wild-type (WT) mice, immunohistochemistry localized SGLT2 to the brush border membrane of the early proximal tubule. Sglt2(-/-) mice had glucosuria, polyuria, and increased food and fluid intake without differences in plasma glucose concentrations, GFR, or urinary excretion of other proximal tubular substrates (including amino acids) compared with WT mice. SGLT2 deficiency did not associate with volume depletion, suggested by similar body weight, BP, and hematocrit; however, plasma renin concentrations were modestly higher and plasma aldosterone levels were lower in Sglt2(-/-) mice. Whole-kidney clearance studies showed that fractional glucose reabsorption was significantly lower in Sglt2(-/-) mice compared with WT mice and varied in Sglt2(-/-) mice between 10 and 60%, inversely with the amount of filtered glucose. Free-flow micropuncture revealed that for early proximal collections, 78 ± 6% of the filtered glucose was reabsorbed in WT mice compared with no reabsorption in Sglt2(-/-) mice. For late proximal collections, fractional glucose reabsorption was 93 ± 1% in WT and 21 ± 6% in Sglt2(-/-) mice, respectively. These results demonstrate that SGLT2 mediates glucose reabsorption in the early proximal tubule and most of the glucose reabsorption by the kidney, overall. This mouse model mimics and explains the glucosuric phenotype of individuals carrying SLC5A2 mutations.

Indexed as

AbsorptionAldosteroneAnimalsDisease Models, AnimalGlucoseKidney Tubules, ProximalMiceMice, KnockoutMicrovilliReninRNA, MessengerSodium-Glucose Transporter 2AldosteroneGlucoseReninRNA, MessengerSlc5a2 protein, mouseSodium-Glucose Transporter 2

Identifiers

PMID20616166
PMCPMC3014039
OpenAlexW2144862658

What OpenQuestion 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 OpenQuestion graph.