Title : Dexmedetomidine-induced contraction involves c-Jun NH2 -terminal kinase phosphorylation through activation of the 5-lipoxygenase pathway in the isolated endothelium-denuded rat aorta.

Pub. Date : 2014 Dec

PMID : 25224579






4 Functional Relationships(s)
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1 Vasoconstriction induced by dexmedetomidine, a highly selective alpha-2 adrenoceptor agonist, mainly involves c-Jun NH2 -terminal kinase (JNK) phosphorylation in the isolated endothelium-denuded aorta. Dexmedetomidine mitogen-activated protein kinase 8 Rattus norvegicus
2 We carried out an in vitro study to determine the main arachidonic acid metabolic pathway that is involved in dexmedetomidine-induced JNK activation. Dexmedetomidine mitogen-activated protein kinase 8 Rattus norvegicus
3 SP600125, rauwolscine, quinacrine dihydrochloride, nordihydroguaiaretic acid, AA-861, phenidone and GF 109203X attenuated dexmedetomidine-induced JNK phosphorylation. Dexmedetomidine mitogen-activated protein kinase 8 Rattus norvegicus
4 Thus, dexmedetomidine-induced alpha-2 adrenoceptor-mediated contraction is mediated mainly by 5-LOX and partially by COX-2, which leads to JNK phosphorylation. Dexmedetomidine mitogen-activated protein kinase 8 Rattus norvegicus