Soluble epoxide hydrolase

Soluble epoxide hydrolase (sEH/EPHX2) converts lipid epoxides into diols and regulates EET-dependent vascular tone, nociception, angiogenesis, and inflammation[1]. Mechanistically, sEH hydrolyzes cytochrome P450-derived epoxyeicosatrienoic acids (EETs), reducing epoxide signaling in arachidonic-acid pathways[1][2]. In disease models, Ephx2 deletion lowers blood pressure and attenuates renal inflammation and glomerular injury in DOCA-salt hypertension[3][4]. Compared with EPHX1, EPHX2 preferentially hydrolyzes EETs in vitro, although EPHX1 also contributes to EET hydrolysis in vivo[5][6]. For experimental applications, sEH inhibitors increase lipid epoxides, including EETs, and support studies of cardiovascular, inflammatory, pain, central nervous system, and metabolic disease mechanisms[7][8].