L-NAME

L-NAME inhibits NOS with an IC₅₀ of 70 μM. L-NAME is a precursor to NOS inhibitor L-NOARG which has an IC₅₀ value of 1.4 μM. L-NAME requires hydrolysis of the methyl ester by cellular esterases to become a fully functional inhibitor. L-NAME can be used to induce hypertension and preeclampsia models. In Vitro:L-arginine analogues are widely used inhibitors of nitric oxide synthase (NOS) activity, with N^w-nitro-L-arginine methyl ester (L-NAME) being at the head^[2]. Freshly dissolved L-NAME is a 50 fold less potent inhibitor of purified brain NOS (mean IC₅₀= 70 μM) than L-NOARG (IC₅₀= 1.4 μM), but the apparent inhibitory potency of L-NAME approached that of L-NOARG upon prolonged incubation at neutral or alkaline pH. HPLC analyses reveal that NOS inhibition by L-NAME closely correlated with hydrolysis of the drug to L-NOARG^[1]. In Vivo:Note:
Please do not refer to only one article to determine the experimental conditions. It is recommended to determine the optimal experimental conditions (animal strain, age, dosage, frequency and cycle, detection time and indicators, etc.) through preliminary experiments before the formal experiment.

L-NAME hydrochloride can be used to induce hypertension models^[6].