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In vitro: [3H]MK-801 binds with NMDA receptor with a Kd of 37.2 ±2.7 nM in rat cerebral cortical membranes. MK-801 shows an inhibitory activity against N-methyl-D-aspartate-induced [3H]norepinephrine (NE) release and [3H]TCP binding in the hippocampus with IC50s of 20 nM and 9 nM, respectively. MK-801 progressively suppresses of current induced by NMDA. Mg2+ (10 mM) prevents MK-801 from blocking the N-Me-D-Asp-induced current, even when MK-801 is applied for a long time in the presence of NMDA. MK-801 blocks NMDA-activated single-channel activity in outside-out patches. MK-801 (< 500 μM) inhibits activation of microglia induced by LPS with increased Cox-2 protein expression in BV-2 cells. MK-801 (< 500 μM) reduces microglial TNF-α output with an EC50 of 400 μM in BV-2 cells.
In vivo: MK-801 (1 mg/kg) treatment before each METH injection reduces the extent of DA depletion by 55% in striatal of mice. MK-801 (1 mg/kg) also attenuates the effects of METH on microglial activation in striatal of mice. MK-801 (0.05, 0.2 mg/kg, i.p.) attenuates subsequent cocaine-primed reinstatement without disruption in rats. MK-801 (0.2 mg/kg, i.p.) prior to two reactivation sessions in the home cage shows no suppression on subsequent cocaine-primed reinstatement.
| Cell Experiment | |
|---|---|
| Cell lines | |
| Preparation method | |
| Concentrations | |
| Incubation time | |
| Animal Experiment | |
|---|---|
| Animal models | Rats |
| Formulation | saline |
| Dosages | 0.20 mg/kg |
| Administration | i.p. |
| Molecular Weight | 337.37 |
| Formula | C20H19NO4 |
| CAS Number | 77086-22-7 |
| Solubility (25°C) | DMSO 100 mg/mL Water 6 mg/mL Ethanol 20 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Related NMDA Products |
|---|
| Dizocilpine
Dizocilpine (MK-801) is a potent N-methyl-D-aspartate (NMDA) receptor antagonist with Ki of 30.5 nM. |
| D-Cycloserine
D-Cycloserine is an analog of the amino acid D-alanine. |
| D-AP5
D-AP5 is a potent, selective NMDA antagonist. |
| Homoquinolinic acid
Homoquinolinic acid is a selective, potent NMDA agonist. |
| Ibotenic acid
Ibotenic acid is a non-selective NMDA agonist. Ibotenic acid has agonist activity at both the N-methyl-D-aspartate (NMDA) and trans-ACPD or metabolotropic quisqualate (Qm) receptor sites. |
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