Rats are treated with 5, 100, and 600 μmol/kg of AR-M 1000390 (AR-M100390) for 3 and/or 7 days; another group of rats treated with 600 μmol/kg of compound are allowed to recover for 14 days. AR-M 1000390 (600 μmol/kg) causes vacuolation in the β-cell of the rat pancreas that is associated with depletion of insulin and hyperglycemia after 7 days of dosing. Treatment of rats with 600 μmol/kg of AR-M 1000390 results in vacuolation of the β-cell of the rat pancreas that is similar to that reported for cyclizine and cyproheptadine[2].
In Vitro
EC50: 7.2±0.9 nM (δ opioid receptor)[1]
Kinase Assay
Cell Assay
RINm5F cells are seeded in 24-well plates and treated with vehicle (DMSO), 10 μM AR-M 1000390 (AR-M100390), and 10 μM Cyclizine in serum-free medium; cells are rinsed with phosphate-buffered saline and stored at -80°C until analysis. RNA is isolated with the RNeasy purification system with DNAse treatment[2].
Animal Administration
Rats[2] Han Wistar rats (six per treatment group) are treated with vehicle (saline) or 5, 100, and 600 μmol/kg/day of AR-M 1000390 (AR-M100390) for 7 days. A separate group of rats are treated with 600 μmol/kg/day for 7 days followed by a 14-day recovery period. Another group is treated with 600 μmol/kg/day for 3 days. Blood sampling for glucose, lipids, and insulin measurements are taken on days 2, 4, 8, and 22. Blood sampling for AR-M 1000390 concentration measurements are collected on days 4 and 8. The animals are euthanized with CO2 on days 4, 8, and 22 and the pancreas isolated and processed for histopathology, insulin immunohistochemistry, and insulin mRNA analyses[2].
References
[1]. Wei ZY, et al. N,N-Diethyl-4-(phenylpiperidin-4-ylidenemethyl)benzamide: a novel, exceptionally selective, potent delta opioid receptor agonist with oral bioavailability and its analogues. J Med Chem. 2000 Oct 19;43(21):3895-905.
[2]. Otieno MA, et al. Mechanistic investigation of N,N-diethyl-4-(phenyl-piperidin-4-ylidenemethyl)-benzamide-inducedinsulin depletion in the rat and RINm5F cells. Toxicol Sci. 2008 Sep;105(1):221-9.
Return Policy
If you are in any way unsatisfied with your purchase, you may return any item(s) within 365 days of its original purchase date.
Please provide your Order Number in the email. We strive to reply to all email inquiries within one business day.
