Cited by 65Hormonal Regulation and HypertensionRenin-Angiotensin System StudiesBlood Pressure and Hypertension Studies

Aldosterone Blunts Tubuloglomerular Feedback by Activating Macula Densa Mineralocorticoid Receptors

Open access
Fu, Yiling, Hall, John E., Lu, Deyin, Lin, Lin, Manning, R. Davis, Cheng, Liang, Gomez-Sanchez, Celso E., Juncos, Luis A. +1 more·2012·Hypertension

Abstract

Chronic aldosterone administration increases glomerular filtration rate, whereas inhibition of mineralocorticoid receptors (MRs) markedly attenuates glomerular hyperfiltration and hypertension associated with primary aldosteronism or obesity. However, the mechanisms by which aldosterone alters glomerular filtration rate regulation are poorly understood. In the present study, we hypothesized that aldosterone suppresses tubuloglomerular feedback (TGF) via activation of macula densa MR. First, we observed the expression of MR in macula densa cells isolated by laser capture microdissection and by immunofluorescence in rat kidneys. Second, to investigate the effects of aldosterone on TGF in vitro, we microdissected the juxtaglomerular apparatus from rabbit kidneys and perfused the afferent arteriole and distal tubule simultaneously. Under control conditions, TGF was 2.8±0.2 μm. In the presence of aldosterone (10 −8 mol/L), TGF was reduced by 50%. The effect of aldosterone to attenuate TGF was blocked by the MR antagonist eplerenone (10 −5 mol/L). Third, to investigate the effect of aldosterone on TGF in vivo, we performed micropuncture, and TGF was determined by maximal changes in stop-flow pressure P sf when tubular perfusion rate was increased from 0 to 40 nL/min. Aldosterone (10 −7 mol/L) decreased ΔP sf from 10.1±1.4 to 7.7±1.2 mm Hg. In the presence of l -NG-monomethyl arginine citrate (10 −3 mol/L), this effect was blocked. We conclude that MRs are expressed in macula densa cells and can be activated by aldosterone, which increases nitric oxide production in the macula densa and blunts the TGF response.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1161/hypertensionaha.111.173195

Cites

34 of 34 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Aldosterone activates mineralocorticoid receptors expressed on macula densa cells and increases their production of nitric oxide, which induces renal vasodilation and glomerular hyperfiltration.

    “aldosterone activates MRs expressed on macula densa cells and increases their production of NO, which induces renal vasodilation and glomerular hyperfiltration48,49.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Fu, Y., Hall, J. E., Lu, D., Lin, L., Manning, R. D., Cheng, L., Gomez-Sanchez, C. E., Juncos, L. A., & Liu, R.
Affiliations
  • University of Mississippi Medical Center (US)
  • From the Department of Physiology and Biophysics (Y.F., J.E.H., D.L., L.L., R.D.M., L.C., L.A.J., R.L.) and Division of Nephrology, Department of Medicine (L.A.J., R.L.), University of Mississippi Medical Center, Jackson, MS; Research Service (C.E.G.-S.), G.V. (Sonny) Montgomery Veterans' Affairs Medical Center, Jackson, MS.
Venue
Hypertension
Published
2012-03
Volume
59
Issue
3
Pages
599-606
ISSN
  • 0194-911X (ISSN-L)
  • 1524-4563
OpenAlex
W2164322065
Cited by
65
References
34
Citations by year
2026: 8 · 2025: 5 · 2024: 3 · 2023: 7 · 2022: 4 · 2021: 2 · 2020: 4 · 2019: 4 · 2018: 2 · 2017: 4 · 2016: 4 · 2015: 3 · 2014: 6 · 2013: 7 · 2012: 2
FWCI
4.62
Type
journal article
Language
en
Open access
Locations
  • Hypertension (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Heart, Lung, and Blood Institute (R01HL027255, HL27255, R01HL086767, P01HL051971)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal Regulation and Hypertension
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
Keywords
aldosterone, tubuloglomerular feedback, macula densa, mineralocorticoid receptor, glomerular filtration rate regulation, eplerenone, nitric oxide, juxtaglomerular apparatus, primary aldosteronism, L-NG-monomethylarginine
MeSH terms
Aldosterone, Animals, Cells, Cultured, Feedback, Glomerular Filtration Rate, Juxtaglomerular Apparatus, Kidney Tubules, Distal, Male, Nitric Oxide, Rabbits, Rats, Sprague-Dawley, Receptors, Mineralocorticoid, Rats

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review