B-adrenergic receptor. Definition

Medical Definition: b-adrenergic receptor

Molecule that interacts with ²-adrenergic agonists to enable their biological effects. Activation of type ² -1 induces the enhancement of cardiac inotropism and lipolysis in adipose tissue. Receptor activation ² -2 generates a relaxation of vascular and bronchial smooth muscle. ² -3 receptors are found in brown adipose tissue and its activation results in promoting thermogenesis.

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