Evidence map›Paper›PMID 27117802›Full record

ArticlePhysiological reports2016

Effect of NBCe1 deletion on renal citrate and 2-oxoglutarate handling.

Gunars Osis, Mary E Handlogten, Hyun-Wook Lee, Kathleen S Hering-Smith, Weitao Huang, Michael F Romero, Jill W Verlander, I David Weiner

Abstract read
In one paragraph

Article in Physiological reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

  1. Uncoupling proximal tubule ammoniagenesis from bicarbonate generation byAmerican journal of physiology. Renal physiology · 2026
    Article
  2. Lack of a role of NHE4 in renal ammonia metabolism.American journal of physiology. Renal physiology · 2025
    Article
  3. Article
  4. Acid-base effects of combined renal deletion of NBCe1-A and NBCe1-B.American journal of physiology. Renal physiology · 2022
    Article
  5. NBCe1-A is required for the renal ammonia and KAmerican journal of physiology. Renal physiology · 2020
    Article
  6. Regulation of renal NaDC1 expression and citrate excretion by NBCe1-A.American journal of physiology. Renal physiology · 2019
    Article
  7. Expression of the B splice variant of NBCe1 (SLC4A4) in the mouse kidney.American journal of physiology. Renal physiology · 2018
    Article
  8. Differences in renal ammonia metabolism in male and female kidney.American journal of physiology. Renal physiology · 2018
    Article
  9. Renal Tubular Acidosis: HAdvances in chronic kidney disease · 2018
    Review
  10. Article
  11. Review
  12. Article
  13. Recent advances in understanding renal ammonia metabolism and transport.Current opinion in nephrology and hypertension · 2016
    Review
  14. 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

8 authors.

Gunars OsisDivision of Nephrology, Hypertension and Renal Transplantation, University of Florida College of Medicine, Gainesville, Florida.
Mary E HandlogtenDivision of Nephrology, Hypertension and Renal Transplantation, University of Florida College of Medicine, Gainesville, Florida.
Hyun-Wook LeeDivision of Nephrology, Hypertension and Renal Transplantation, University of Florida College of Medicine, Gainesville, Florida.
Kathleen S Hering-SmithRenal Division, Tulane University College of Medicine, New Orleans, Louisiana.
Weitao HuangRenal Division, Tulane University College of Medicine, New Orleans, Louisiana.
Michael F RomeroDepartment of Physiology & Biomedical Engineering and Nephrology & Hypertension, Mayo Clinic College Of Medicine, Rochester, Minnesota.
Jill W VerlanderDivision of Nephrology, Hypertension and Renal Transplantation, University of Florida College of Medicine, Gainesville, Florida.
I David WeinerDivision of Nephrology, Hypertension and Renal Transplantation, University of Florida College of Medicine, Gainesville, Florida Nephrology and Hypertension Section, North Florida/South Georgia Veterans Health System, Gainesville, Florida david.weiner@medicine.ufl.edu.

Funding

Translational Research in Hypertension and Renal BiologyP30GM103337 · NIGMS · TULANE UNIVERSITY OF LOUISIANA · PI HAMM, L LEE · 2012 to 2016
$5.8M
H/HCO3 transport in the collecting ductR01DK045788 · NIDDK · UNIVERSITY OF FLORIDA · PI WEINER, I. DAVID · 2000 to 2017
$4.4M
Molecular Mechanisms Regulating Ammonia MetabolismR01DK107798 · NIDDK · UNIVERSITY OF FLORIDA · PI WEINER, I. DAVID · 2016 to 2025
$3.2M
Molecular mechanisms of the electrogenic Na+ Bicarbonate Cotransporter (NBCe1)R01EY017732 · NEI · MAYO CLINIC ROCHESTER · PI ROMERO, MICHAEL F. · 2006 to 2010
$1.6M
A New Target for Kidney Stone Prevention: Calcium-Sensitive Transport of CitrateR01DK095879 · NIDDK · TULANE UNIVERSITY OF LOUISIANA · PI HERING-SMITH, KATHLEEN S · 2012 to 2015
$1.2M
H/HCO3 transport in the collecting ductR56DK045788 · NIDDK · UNIVERSITY OF FLORIDA · PI WEINER, I. DAVID · 2008 to 2008
$205k
Molecular mechanisms of ammonia metabolismI01BX000818 · VA · VETERANS HEALTH ADMINISTRATION · PI WEINER, I. DAVID · 2011 to 2014
–
BLRD VA I01 BX000818NEI NIH HHS R01 EY017732NEI NIH HHS R01-EY017732NIDDK NIH HHS R01 DK045788NIDDK NIH HHS R01-DK045788NIDDK NIH HHS R01 DK095879NIDDK NIH HHS R01-DK095879NIDDK NIH HHS R01 DK107798NIDDK NIH HHS R01-DK107798NIDDK NIH HHS R56 DK045788NIGMS NIH HHS P30 GM103337
6 · The paper itself

Abstract

unlabelledThe bicarbonate transporter, NBCe1 (SLC4A4), is necessary for at least two components of the proximal tubule contribution to acid-base homeostasis, filtered bicarbonate reabsorption, and ammonia metabolism. This study's purpose was to determine NBCe1's role in a third component of acid-base homeostasis, organic anion metabolism, by studying mice with NBCe1 deletion. Because NBCe1 deletion causes metabolic acidosis, we also examined acid-loaded wild-type adult mice to determine if the effects of NBCe1 deletion were specific to NBCe1 deletion or were a non-specific effect of the associated metabolic acidosis. Both NBCe1 KO and acid-loading decreased citrate excretion, but in contrast to metabolic acidosis alone, NBCe1 KO decreased expression of the apical citrate transporter, NaDC-1. Thus, NBCe1 expression is necessary for normal NaDC-1 expression, and NBCe1 deletion induces a novel citrate reabsorptive pathway. Second, NBCe1 KO increased 2-oxoglutarate excretion. This could not be attributed to the metabolic acidosis as experimental acidosis decreased excretion. Increased 2-oxoglutarate excretion could not be explained by changes in plasma 2-oxoglutarate levels, the glutaminase I or the glutaminase II generation pathways, 2-oxoglutarate metabolism, its putative apical 2-oxoglutarate transporter, OAT10, or its basolateral transporter, NaDC-3. IN SUMMARY: (1) NBCe1 is necessary for normal proximal tubule NaDC-1 expression; (2) NBCe1 deletion results in stimulation of a novel citrate reabsorptive pathway; and (3) NBCe1 is necessary for normal 2-oxoglutarate metabolism through mechanisms independent of expression of known transport and metabolic pathways.

Indexed as

AcidosisAnimalsCitric AcidImmunoblottingImmunohistochemistryKetoglutaric AcidsKidneyMiceMice, Inbred C57BLMice, KnockoutReal-Time Polymerase Chain ReactionSodium-Bicarbonate SymportersCitric AcidKetoglutaric AcidsSlc4a4 protein, mouseSodium-Bicarbonate Symporters2‐oxoglutarateacidosiscitrateNaDC‐1NBCe1proximal tubule

Identifiers

PMID27117802
PMCPMC4848728

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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.