ML 218 hydrochloride

Animal experiment:

Rats: ML218 is administered intravenously (IV) to rats via the jugular vein catheter in 20% DMSO/80% saline at a dose of 1 mg/kg and a dose volume of 1 mL/kg. Blood collections via the carotid artery are performed at predose, and at 2 min, 7 min, 15 min, 30 min, and 1 h, 2 h, 4 h, 7 h, and 24 h post dose. Samples are collected into chilled, EDTA-fortified tubes, and centrifuged for 10 min at 3000 rpm (4°C), and resulting plasma is aliquoted into 96-well plates for LC/MS/MS analysis. For oral exposure studies, measuring both systemic plasma and CNS tissue exposure, ML218 is administered (oral gavage) to fasted rats as suspensions in 10% Tween 80/0.5% methylcellulose at a dose of 10 mg/kg and in a dosing volume of 10 mL/kg; blood and whole brain samples are collected at 1.5 h post dose. Blood is collected into chilled, EDTA-fortified tubes, centrifuged for 10 min at 3000 rpm (4°C), and stored at −80 °C until LC/MS/MS analysis[1].

References:

[1]. Xiang Z, et al. The Discovery and Characterization of ML218: A Novel, Centrally Active T-Type Calcium Channel Inhibitor with Robust Effects in STN Neurons and in a Rodent Model of Parkinson's Disease. ACS Chem Neurosci. 2011 Dec 21;2(12):730-742.
[2]. https://www.ncbi.nlm.nih.gov/pubmed/22368764