Evidence map›Paper›PMID 33705345›Full record

ArticleThe Journal of endocrinology2021

Regulation of Rhcg, an ammonia transporter, by aldosterone in the kidney.

Koji Eguchi, Yuichiro Izumi, Yukiko Yasuoka, Terumasa Nakagawa, Makoto Ono, Kosuke Maruyama, Naomi Matsuo, Akiko Hiramatsu, Hideki Inoue, Yushi Nakayama and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of endocrinology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.4field-weighted citation impact, top 42% 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

6 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Chloride Gradient Is Involved in Ammonium Influx in Human Erythrocytes.International journal of molecular sciences · 2024
    Article
  3. State of knowledge on ammonia handling by the kidney.Pflugers Archiv : European journal of physiology · 2024
    Review
  4. Review
  5. Comprehensive Analysis to Identify Rh Family C Glycoprotein (Drug design, development and therapy · 2023
    Article
  6. Hyperammonemia in Inherited Metabolic Diseases.Cellular and molecular neurobiology · 2022
    Review
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

16 authors at 5 institutions in 2 countries.

Koji EguchiDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Yuichiro IzumiDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.ORCID 0000-0003-0827-9619
Yukiko YasuokaDepartment of Physiology, Kitasato University School of Medicine, Minami-ku, Sagamihara, Kanagawa, Japan.
Terumasa NakagawaDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Makoto OnoDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Kosuke MaruyamaDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Naomi MatsuoDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Akiko HiramatsuDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Hideki InoueDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Yushi NakayamaDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Hiroshi NonoguchiDivision of Internal Medicine, Kitasato University Medical Center, Kitamoto, Saitama, Japan.
Hyun-Wook LeeDivision of Nephrology, Hypertension, and Transplantation, University of Florida College of Medicine, Gainesville, Florida, USA.
I David WeinerDivision of Nephrology, Hypertension, and Transplantation, University of Florida College of Medicine, Gainesville, Florida, USA.
Yutaka KakizoeDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Takashige KuwabaraDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Masashi MukoyamaDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, Chuo-ku, Kumamoto, Japan.
Kumamoto University · JPFlorida College · USKitasato University · JPKitasato University Medical Center · JPUniversity of Florida · US

Funding

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
NIDDK NIH HHS R01 DK045788NIDDK NIH HHS R01 DK107798
6 · The paper itself

Abstract

Rhesus C glycoprotein (Rhcg), an ammonia transporter, is a key molecule in urinary acid excretion and is expressed mainly in the intercalated cells (ICs) of the renal collecting duct. In the present study we investigated the role of aldosterone in the regulation of Rhcg expression. In in vivo experiments using C57BL/6J mice, Western blot analysis showed that continuous subcutaneous administration of aldosterone increased the expression of Rhcg in membrane fraction of the kidney. Supplementation of potassium inhibited the effect of aldosterone on the Rhcg. Next, mice were subjected to adrenalectomy with or without administration of aldosterone, and then ad libitum 0.14 M NH4Cl containing water was given. NH4Cl load increased the expression of Rhcg in membrane fraction. Adrenalectomy decreased NH4Cl-induced Rhcg expression, which was restored by administration of aldosterone. Immunohistochemical studies revealed that NH4Cl load induced the localization of Rhcg at the apical membrane of ICs in the outer medullary collecting duct. Adrenalectomy decreased NH4Cl-induced membrane localization of Rhcg, which was restored by administration of aldosterone. For in vitro experiments, IN-IC cells, an immortalized cell line stably expressing Flag-tagged Rhcg (Rhcg-Flag), were used. Western blot analysis showed that aldosterone increased the expression of Rhcg-Flag in membrane fraction, while the increase in extracellular potassium level inhibited the effect of aldosterone. Both spironolactone and Gӧ6983, a PKC inhibitor, inhibited the expression of Rhcg-Flag in the membrane fraction. These results suggest that aldosterone regulates the membrane expression of Rhcg through the mineralocorticoid receptor and PKC pathways, which is modulated by extracellular potassium level.

Indexed as

Acid-Base EquilibriumAldosteroneAmmonium ChlorideAmmonium CompoundsAnimalsCation Transport ProteinsGene Expression RegulationImmediate-Early ProteinsInfusions, SubcutaneousKidneyMaleMembrane GlycoproteinsMiceMice, Inbred C57BLOligopeptidesPotassiumAldosteroneAmmonium ChlorideAmmonium CompoundsCation Transport ProteinsFLAG peptideImmediate-Early ProteinsMembrane GlycoproteinsOligopeptidesPotassiumProtein Kinase CProtein Serine-Threonine KinasesRhcg protein, mouseSerum-Glucocorticoid Regulated Kinasesadrenal hormomesion channelsphysiologyrenal

Identifiers

PMID33705345
PMCPMC9428946
OpenAlexW3134934706

What OpenQuestion holds

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Registered trials

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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.