Evidence map›Paper›PMID 20966128›Full record

ArticleJournal of the American Society of Nephrology : JASN2010

Pendrin modulates ENaC function by changing luminal HCO3-.

Vladimir Pech, Truyen D Pham, Seongun Hong, Alan M Weinstein, Kathryn B Spencer, Billy Jean Duke, Eric Walp, Young Hee Kim, Roy L Sutliff, Hui-Fang Bao and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the American Society of Nephrology : JASN, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

70 citing papers in PubMed, 106 citations in OpenAlex.

  1. Article
  2. Article
  3. Pendrin is upregulated by corticosterone and participates in its pressor response.American journal of physiology. Renal physiology · 2026
    Article
  4. Intercalated Cell ClC-K2 Channel Contributes to Systemic ClFASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  5. Article
  6. Review
  7. Pendrin: linking acid base to blood pressure.Pflugers Archiv : European journal of physiology · 2024
    Review
  8. Article
  9. The K-Cl cotransporter-3 in the mammalian kidney.Current opinion in nephrology and hypertension · 2023
    Review
  10. Article
  11. Article
  12. Control of sodium and potassium homeostasis by renal distal convoluted tubules.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2023
    Article
  13. Pendrin-null mice develop severe hypokalemia following dietary NaAmerican journal of physiology. Renal physiology · 2022
    Article
  14. Review
  15. KCC3a, a Strong Candidate Pathway for KFrontiers in cell and developmental biology · 2022
    Article
  16. The ClJournal of human hypertension · 2021
    Article
  17. Review
  18. Article
  19. NBCe2 (Frontiers in physiology · 2020
    Article
  20. Review

10 more citing papers are in PubMed but not listed here.

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

12 authors at 4 institutions in 2 countries.

Vladimir PechDepartment of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA.
Truyen D Pham
Seongun Hong
Alan M Weinstein
Kathryn B Spencer
Billy Jean Duke
Eric Walp
Young Hee Kim
Roy L Sutliff
Hui-Fang Bao
Douglas C Eaton
Susan M Wall
Emory University · USVeterans Health Administration · USCornell University · USWWF Colombia · CO

Funding

THEORY OF SOLUTE AND WATER TRANSPORT ACROSS EPITHELIAR01DK029857 · NIDDK · WEILL MEDICAL COLL OF CORNELL UNIV · PI WEINSTEIN, ALAN M · 1986 to 2022
$3.8M
Renal Physiology of PendrinR01DK052935 · NIDDK · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI WALL, SUSAN MARIE · 1997 to 2011
$3.1M
RENAL NET ACID SECRETION AND THE NA/K/2C1 CONTRANSPORTERR01DK046493 · NIDDK · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI WALL, SUSAN MARIE · 1999 to 2014
$2.0M
Regulation of Pendrin by Angiotensin IIR56DK052935 · NIDDK · EMORY UNIVERSITY · PI WALL, SUSAN MARIE · 2007 to 2007
$383k
NIDDK NIH HHS DK-29857NIDDK NIH HHS DK-52935NIDDK NIH HHS DK-P01 06152NIDDK NIH HHS DK-R37 27963NIDDK NIH HHS R01 DK029857NIDDK NIH HHS R01 DK046493NIDDK NIH HHS R01 DK052935NIDDK NIH HHS R56 DK052935
6 · The paper itself

Abstract

The epithelial Na(+) channel, ENaC, and the Cl(-)/HCO(3)(-) exchanger, pendrin, mediate NaCl absorption within the cortical collecting duct and the connecting tubule. Although pendrin and ENaC localize to different cell types, ENaC subunit abundance and activity are lower in aldosterone-treated pendrin-null mice relative to wild-type mice. Because pendrin mediates HCO(3)(-) secretion, we asked if increasing distal delivery of HCO(3)(-) through a pendrin-independent mechanism "rescues" ENaC function in pendrin-null mice. We gave aldosterone and NaHCO(3) to increase pendrin-dependent HCO(3)(-) secretion within the connecting tubule and cortical collecting duct, or gave aldosterone and NaHCO(3) plus acetazolamide to increase luminal HCO(3)(-) concentration, [HCO(3)(-)], independent of pendrin. Following treatment with aldosterone and NaHCO(3), pendrin-null mice had lower urinary pH and [HCO(3)(-)] as well as lower renal ENaC abundance and function than wild-type mice. With the addition of acetazolamide, however, acid-base balance as well as ENaC subunit abundance and function was similar in pendrin-null and wild-type mice. We explored whether [HCO(3)(-)] directly alters ENaC abundance and function in cultured mouse principal cells (mpkCCD). Amiloride-sensitive current and ENaC abundance rose with increased [HCO(3)(-)] on the apical or the basolateral side, independent of the substituting anion. However, ENaC was more sensitive to changes in [HCO(3)(-)] on the basolateral side of the monolayer. Moreover, increasing [HCO(3)(-)] on the apical and basolateral side of Xenopus kidney cells increased both ENaC channel density and channel activity. We conclude that pendrin modulates ENaC abundance and function, at least in part by increasing luminal [HCO(3)(-)] and/or pH.

Indexed as

AcetazolamideAldosteroneAnimalsAnion Transport ProteinsBicarbonatesBlood PressureCell LineDiureticsEpithelial Sodium ChannelsFemaleHydrogen-Ion ConcentrationKidney CortexKidney Tubules, CollectingMaleMiceMice, KnockoutAcetazolamideAldosteroneAnion Transport ProteinsBicarbonatesDiureticsEpithelial Sodium ChannelsSlc26a4 protein, mouseSodium BicarbonateSulfate Transporters

Identifiers

PMID20966128
PMCPMC3014007
OpenAlexW2125170143

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.