ArticleAmerican journal of physiology. Renal physiology2012
The epithelial sodium/proton exchanger, NHE3, is necessary for renal and intestinal calcium (re)absorption.
Article in American journal of physiology. Renal physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.
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.
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.
Who cites it
56 citing papers in PubMed, 100 citations in OpenAlex.
- Inhibition of sodium/hydrogen exchanger 3 in the gastrointestinal tract by tenapanor reduces paracellular phosphate permeability.Science translational medicine · 2018Trial
- Reduced Expression of Magnesium Transport Proteins in the Distal Convoluted Tubule of Clcnkb-Deficient Mice May Explain Urinary Magnesium Wasting in Classical Bartter Syndrome.Acta physiologica (Oxford, England) · 2026Article
- Disruption of Claudin-2 and Trpv6 Results in Hypocalcemia, Hypercalciuria, and Altered Bone Microarchitecture in Mice.Acta physiologica (Oxford, England) · 2026Article
- Dietary potassium restriction causes hypercalciuria, hypocalcemia, and bone loss in male mice.JCI insight · 2026Article
- Association of Body Mass Index Trajectories with Kidney Stone Disease: An Analysis Based on the NHANES Database.Kidney & blood pressure research · 2026Article
- Histamine regulates the activity and the expression of the NaInflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025Article
- Calcium-Sensing Receptor in the Thick Ascending Limb and Renal Response to Hypercalcemia.Journal of the American Society of Nephrology : JASN · 2025Article
- Fucoidan Alleviates Porcine Epidemic Diarrhea Virus-Induced Intestinal Damage in Piglets by Enhancing Antioxidant Capacity and Modulating Arginine Metabolism.Animals : an open access journal from MDPI · 2025Article
- Biology of calcium homeostasis regulation in intestine and kidney.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025Review
- Genetic deletion of the kidney sodium/proton exchanger-3 (NHE3) does not alter calcium and phosphate balance due to compensatory responses.Kidney international · 2025Article
- Article
- Calcium signalling and transport in the kidney.Nature reviews. Nephrology · 2024Review
- Hypomagnesemia in Post Thyroidectomy Patient: An Underestimated Entity.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2023Article
- Molecular mechanisms altering tubular calcium reabsorption.Pediatric nephrology (Berlin, Germany) · 2022Review
- Dietary branched-chain amino acids modulate the dynamics of calcium absorption and reabsorption in protein-restricted pigs.Journal of animal science and biotechnology · 2022Article
- Enhanced phosphate absorption in intestinal epithelial cell-specific NHE3 knockout mice.Acta physiologica (Oxford, England) · 2022Article
- Claudin-2 and claudin-12 form independent, complementary pores required to maintain calcium homeostasis.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- The role of calcium-sensing receptor signaling in regulating transepithelial calcium transport.Experimental biology and medicine (Maywood, N.J.) · 2021Review
- Review
- The role of NHE3 (Slc9a3) in oxalate and sodium transport by mouse intestine and regulation by cAMP.Physiological reports · 2021Article
Corrections and comments
- Commented on by
Authors and funding
9 authors at 3 institutions in 3 countries.
Funding
Abstract
Passive paracellular proximal tubular (PT) and intestinal calcium (Ca(2+)) fluxes have been linked to active sodium (re)absorption. Although the epithelial sodium/proton exchanger, NHE3, mediates apical sodium entry at both these sites, its role in Ca(2+) homeostasis remains unclear. We, therefore, set out to determine whether NHE3 is necessary for Ca(2+) (re)absorption from these epithelia by comparing Ca(2+) handling between wild-type and NHE3(-/-) mice. Serum Ca(2+) and plasma parathyroid hormone levels were not different between groups. However, NHE3(-/-) mice had increased serum 1,25-dihydroxyvitamin D(3). The fractional excretion of Ca(2+) was also elevated in NHE3(-/-) mice. Paracellular Ca(2+) flux across confluent monolayers of a PT cell culture model was increased by an osmotic gradient equivalent to that generated by NHE3 across the PT in vivo and by overexpression of NHE3.( 45)Ca(2+) uptake after oral gavage and flux studies in Ussing chambers across duodenum of wild-type and NHE3(-/-) mice confirmed decreased Ca(2+) absorption in NHE3(-/-) mice compared with wild-type mice. Consistent with this, intestinal calbindin-D(9K), claudin-2, and claudin-15 mRNA expression was decreased. Microcomputed tomography analysis revealed a perturbation in bone mineralization. NHE3(-/-) mice had both decreased cortical bone mineral density and trabecular bone mass. Our results demonstrate significant alterations of Ca(2+) homeostasis in NHE3(-/-) mice and provide a molecular link between Na(+) and Ca(2+) (re)absorption.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.