ArticleHypertension (Dallas, Tex. : 1979)2014
HV1 acts as a sodium sensor and promotes superoxide production in medullary thick ascending limb of Dahl salt-sensitive rats.
Article in Hypertension (Dallas, Tex. : 1979), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 20 citations in OpenAlex.
- Hv1 channel in immune cells and pharmacology.Pharmacological research · 2025Review
- Genetic Modifications to Alter Blood Pressure Level.Biomedicines · 2022Review
- Direct activation of the proton channel by albumin leads to human sperm capacitation and sustained release of inflammatory mediators by neutrophils.Nature communications · 2021Article
- Alkali supplementation as a therapeutic in chronic kidney disease: what mediates protection?American journal of physiology. Renal physiology · 2020Review
- Voltage gated proton channels modulate mitochondrial reactive oxygen species production by complex I in renal medullary thick ascending limb.Redox biology · 2019Article
- Neurovascular protection in voltage-gated proton channel Hv1 knock-out rats after ischemic stroke: interaction with NaPhysiological reports · 2019Article
- Thick Ascending Limb Sodium Transport in the Pathogenesis of Hypertension.Physiological reviews · 2019Review
- Sodium bicarbonate loading limits tubular cast formation independent of glomerular injury and proteinuria in Dahl salt-sensitive rats.Clinical science (London, England : 1979) · 2018Article
- Oral NaHCOJournal of immunology (Baltimore, Md. : 1950) · 2018Article
- Voltage and pH sensing by the voltage-gated proton channel, HJournal of the Royal Society, Interface · 2018Review
- Involvement of ENaC in the development of salt-sensitive hypertension.American journal of physiology. Renal physiology · 2017Review
- The intimate and controversial relationship between voltage-gated proton channels and the phagocyte NADPH oxidase.Immunological reviews · 2016Review
- Proton channels and renal hypertensive injury: a key piece of the Dahl salt-sensitive rat puzzle?American journal of physiology. Regulatory, integrative and comparative physiology · 2016Review
- The Voltage-Gated Proton Channel: A Riddle, Wrapped in a Mystery, inside an Enigma.Biochemistry · 2015Review
- Reactive oxygen species as important determinants of medullary flow, sodium excretion, and hypertension.American journal of physiology. Renal physiology · 2015Review
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Authors and funding
13 authors at 1 institution in 1 country.
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Abstract
We previously characterized a H(+) transport pathway in medullary thick ascending limb nephron segments that when activated stimulated the production of superoxide by nicotinamide adenine dinucleotide phosphate oxidase. Importantly, the activity of this pathway was greater in Dahl salt-sensitive rats than salt-resistant (SS.13(BN)) rats, and superoxide production was enhanced in low Na(+) media. The goal of this study was to determine the molecular identity of this pathway and its relationship to Na(+). We hypothesized that the voltage-gated proton channel, HV1, was the source of superoxide-stimulating H(+) currents. To test this hypothesis, we developed HV1(-/-) null mutant rats on the Dahl salt-sensitive rat genetic background using zinc-finger nuclease gene targeting. HV1 could be detected in medullary thick limb from wild-type rats. Intracellular acidification using an NH4Cl prepulse in 0 sodium/BaCl2 containing media resulted in superoxide production in thick limb from wild-type but not HV1(-/-) rats (P<0.05) and more rapid recovery of intracellular pH in wild-type rats (ΔpHI 0.005 versus 0.002 U/s, P=0.046, respectively). Superoxide production was enhanced by low intracellular sodium (<10 mmol/L) in both thick limb and peritoneal macrophages only when HV1 was present. When fed a high-salt diet, blood pressure, outer medullary renal injury (tubular casts), and oxidative stress (4-hydroxynonenal staining) were significantly reduced in HV1(-/-) rats compared with wild-type Dahl salt-sensitive rats. We conclude that HV1 is expressed in medullary thick ascending limb and promotes superoxide production in this segment when intracellular Na(+) is low. HV1 contributes to the development of hypertension and renal disease in Dahl salt-sensitive rats.
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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.