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Hydrogen Ion (H+)
- Target
- H+
- Molecular classification
- Ion, Cation
01
Overview
The hydrogen ion (H+) is a cation consisting of a single proton. It plays a crucial role in determining the acidity (pH) of solutions and is fundamental to acid-base chemistry. While often referred to as a proton, it exists predominantly in hydrated forms such as hydronium (H3O+) in aqueous solutions. The concentration of H+ ions is vital for various biological processes, and imbalances can contribute to numerous diseases.
- Other names
- ProtonHydronProtium ionDeuteronTriton
02
Mechanism of action
Acids donate H+; bases accept H+. PPIs inhibit H+/K+ ATPase.
03
Biological functions
pH regulationAcid-base catalysisProton gradient formationCharge carrier
04
Disease associations
AcidosisAlkalosisIschemic injuryInflammation
05
Safety considerations
Acid-base imbalanceTissue damage (acids/bases)Drug interactions affecting pH
06
Interacting drugs
Acids
4 more in the full profile.
07
Biomarkers
pHArterial blood gas (ABG)Serum bicarbonate
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