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Alpha-2 blockers (or α 2 blockers) are a subset of the alpha blocker class of drugs and are antagonists to the α 2 adrenergic receptor. They are mainly used in research, having found limited clinical application in human medicine.
The alpha-2 blocker acts on alpha-2 receptors. The alpha-2 receptor is a G-protein coupled receptor as well, which exert its action by Gi function, leading to an inhibition of adenylyl cyclase and thus reducing synthesis of cAMP. [3] It lowers the amount of calcium inside the cell. [3]
The ST2 cardiac biomarker (also known as soluble interleukin 1 receptor-like 1) is a protein biomarker of cardiac stress encoded by the IL1RL1 gene. ST2 signals the presence and severity of adverse cardiac remodeling and tissue fibrosis , which occurs in response to myocardial infarction , acute coronary syndrome , or worsening heart failure .
The membrane-bound ST2, which provides the activation pathway and soluble ST2 that originates from another promoter region of the il1rl1 gene and lacks the transmembrane and cytoplasmic domains. [12] Interestingly, all the members of the IL-1 family such as receptor share a common intracellular Toll/IL-1 receptor (TIR) domain.
Adopted orphan receptors in the nuclear receptor group include FXR, liver X receptor (LXR), and peroxisome proliferator-activated receptor (PPAR). Another example of an orphan receptor site is the PCP binding site in the NMDA receptor, [10] a type of ligand-gated ion channel. This site is where the recreational drug PCP works, but no endogenous ...
Alpha blockers, also known as α-blockers or α-adrenoreceptor antagonists, are a class of pharmacological agents that act as antagonists on α-adrenergic receptors (α-adrenoceptors). [ 2 ] Historically, alpha-blockers were used as a tool for pharmacologic research to develop a greater understanding of the autonomic nervous system.