It exerts its action via the Mas receptor, which is a non-AT1/AT2 G protein-coupled receptor.
It exerts its action by specifically inhibiting the HMG-CoA reductase, the enzyme that catalyzes the conversion of HMG-CoA to mevolanate, which is the early rate-limiting step in the biosynthesis of cholesterol in the body.
It exerts its action by binding and inactivating the mTORC1 [ 5].
However, the action mechanism of tramadol is not limited only to opioid receptors, it exerts its action through interactions with opioid, serotonin and adrenergic receptors.
Leptin is mainly regarded as a "starvation-hormone" signaling from the adipose tissue (AT) to the brain, indicating the size of the AT-stores [ 8] and it exerts its action by inducing the expression of anorexigenic factors and reducing the hypothalamic production of orexigenic peptides.
This idea is also reinforced by the effect of E64, being poorly cell permeable it most probably exerts its action mainly on extracellular cysteine proteases.
Because the maximal anticonvulsant effect is seen 2 hours after an intravenous injection in rats, it is probable that gabapentin exerts its action at an intracellular site [ 20].
Thus, it remains to be completely deciphered whether leptin exerts its action on the control of lipogenic program in a manner totally independent of its regulation of food intake.
OLM exerts its action mainly via a selective blockade action on AT1 receptors and the consequent reduced pressor effect of angiotensin II [1, 2].
Glucagon exerts its action by binding to its receptor, glucagon receptor (GCGR), one of class B G-protein coupled receptors (GPCRs).
However, the aforementioned studies applied methods with a focus on specific network activity rather than a focus on the location where metoprolol potentially exerts its action in the brain.
