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PeptiBrief
Mechanism

Apelin receptor signalling

Activation of the apelin receptor by endogenous apelin isoforms or synthetic agonists.

Use for apelin-family entities and clearly identified apelin-receptor agonists.
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Biological pathway

The apelin receptor is a class A G-protein-coupled receptor that regulates vascular tone, cardiac contractility, fluid balance and metabolic signalling through G-protein and beta-arrestin pathways.

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Evidence summary

Human infusion and early agonist studies confirm cardiovascular target engagement; broader therapeutic efficacy remains investigational.

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Limitations

Apelin isoforms differ in potency and stability, and acute haemodynamic effects do not establish long-term clinical benefit.
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Peptides linked to this mechanism

Apelin

A family of endogenous peptides that activate the apelin receptor and regulate cardiovascular function, fluid balance and metabolism.

Confidence · strong
Apelin-13

A potent endogenous apelin-receptor agonist studied for acute cardiovascular and renal effects.

Confidence · strong
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ImportantPeptiBrief is an educational information platform. It does not diagnose, prescribe, sell peptides, recommend dosing, encourage self-experimentation or replace qualified medical care. Published scientific evidence is kept separate from community observations and uncertainty.