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The tetracyclic antidepressants mianserin and mirtazapine are α 2 blockers, although their efficacy as antidepressants may come from their activity at other receptor sites. [citation needed] Mechanistically, α 2 blockers increase adrenergic, dopaminergic and serotonergic neurotransmitters and induce insulin secretion, decreasing blood sugar ...
The ST2 protein has two isoforms and is directly implicated in the progression of cardiac disease: a soluble form (referred to as soluble ST2 or sST2) and a membrane-bound receptor form (referred to as the ST2 receptor or ST2L). When the myocardium is stretched, the ST2 gene is upregulated, increasing the concentration of circulating soluble ...
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.
Yohimbine is an α 2-adrenergic receptor antagonist, and has been used in a variety of research projects. It is a veterinary drug used to reverse sedation in dogs and deer. While yohimbine behaves as an aphrodisiac in some mammals, it does not do so in humans.
Alpha 2 blockers. Alpha 2 blockers inhibit the activation of adenylyl cyclase via Gi protein by antagonising alpha 2 receptors, which curbs the synthesis of cyclic AMP (cAMP). [1] This subsequently reduces the concentration of calcium and the release of neurotransmitters, resulting in smooth muscle dilation. [1] Beta 1 blockers
While acepromazine is also used in cats, its absorption is erratic and can vary between individuals. It also generally induces less sedation than in dogs. [13] [14] It also causes spontaneous motor activity (in both cats and dogs, but more often in cats) by blocking dopamine receptors in the striatum and substantia nigra. [15]
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 .