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An example of a proton pump that is not electrogenic, is the proton/potassium pump of the gastric mucosa which catalyzes a balanced exchange of protons and potassium ions. [citation needed] The combined transmembrane gradient of protons and charges created by proton pumps is called an electrochemical gradient.
The discovery of proton pumps in the CV membrane [3] and the direct measurement of ion concentrations inside the CV using microelectrodes [4] led to the following model: the pumping of protons either into or out of the CV causes different ions to enter the CV.
The gastric hydrogen potassium ATPase or H + /K + ATPase is the proton pump of the stomach.It exchanges potassium from the intestinal lumen with cytoplasmic hydronium [2] and is the enzyme primarily responsible for the acidification of the stomach contents and the activation of the digestive enzyme pepsin [3] (see gastric acid).
-ATPase or proton pump creates the electrochemical gradients in the plasma membrane of plants, fungi, protists, and many prokaryotes. Here, proton gradients are used to drive secondary transport processes. As such, it is essential for the uptake of most metabolites, and also for plant responses to the environment (e.g., movement of leaves).
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Proton pump inhibitors, if they have not been started earlier, are recommended in those in whom high risk signs for bleeding are found. [4] High and low dose PPIs appear equivalent at this point. [37] It is also recommended that people with high risk signs are kept in hospital for at least 72 hours. [4]
The use of antacids or drugs that decrease gastric acid production (such as H2-receptor antagonists) or transport (such as proton pump inhibitors). A symptom of rare diseases such as mucolipidosis (type IV). A symptom of Helicobacter pylori infection which neutralizes and decreases secretion of gastric acid to aid its survival in the stomach. [4]
Tiếng Việt; 中文; Edit links ... Pages in category "Proton" The following 27 pages are in this category, out of 27 total. ... Proton pump; Proton radius puzzle;