Lamotrigine

製品コードS3024 バッチS302401

印刷

化学情報

Chemical Structure Synonyms BW-430C,LTG Storage
(From the date of receipt)		 3 years -20°C powder
1 years -80°C in solvent
化学式

C9H7Cl2N5
分子量 256.09 CAS No. 84057-84-1
Solubility (25°C)* 体外 DMSO 10 mg/mL (39.04 mM)
Ethanol 3 mg/mL (11.71 mM)
Water Insoluble
体内 （毎回新しく調製した物を用意してください）
Homogeneous suspension
0.5% methylcellulose
10.0mg/ml Taking the 1 mL working solution as an example, take 10 mg of this product, add it to 1 ml of 0.5% methylcellulose clear solution, and mix evenly to form a uniform suspension. The mixed solution should be used immediately for optimal results. 
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

溶剤液（一定の濃度）を調合する

生物活性

製品説明 Lamotrigine (BW-430C,LTG) is a novel anticonvulsant drug for inhibition of 5-HT with IC50 of 240 μM and 474 μM in human platelets and rat brain synaptosomes, and also is a sodium channel blocker.
in vitro

Lamotrigine stabilises presynaptic neuronal membranes by blockade of voltage-dependent sodium channels, thus preventing the release of excitatory neurotransmitters, particularly glutamate and aspartate. [1] In rat cerebral cortex tissue incubated with veratrine 10 mg/L, lamotrigine is twice as potent in inhibiting the release of glutamate and aspartate (ED 50 = 5.38 mg/L for each) than the release of GABA (ED50 = 11.2 mg/L), and is much less potent in inhibiting acetylcholine release (ED50 = 25.6 mg/L) when cortical slices is exposed to veratrine 75 mg/L. Basal glutamate release is unaffected . [2]Lamotrigine inhibits high-frequency sustained repetitive firing of sodium-dependent action potentials, indicating a direct effect on voltage-activated sodium channels. [3] Lamotrigine does not induce PCP-like central nervous system (CNS) effects, does not act by direct inhibition at the NMDA receptor, and would be expected to be devoid of the undesirable effects associated with NMDA blockade. [4]
in vivo

In mice and rats, lamotrigine prevents MES- and pentetrazol-induced hindlimb extension, suggesting an antiepileptic profile in animals. These effects peak 1 hour after lamotrigine administration and persist for more than 24 hours. [4] Lamotrigine is active in the electrically evoked EEG after-discharge test, which is thought to indicate activity against both simple and complex partial seizures. After-discharge duration is reduced dose-dependently by lamotrigine in rats at intravenous doses >5 mg/kg. [5]

プロトコル(参考用のみ)

キナーゼアッセイ Electrophysiology
In electrophysiological experiments, neurons bathed in control medium responds to 500-ms depolarizing pulses with trains of action potentials termed sustained repetitive firing (SRF). Increasing the magnitude of depolarization results in an increased number and frequency of action potentials. Typically a depolarizing current step of l-l.5 nA is sufficient to evoke SRF. To test the anticonvulsant effect, the blocking of SRF throughout the depolarizing current pulse is analyzed.
動物実験 動物モデル Dog/Rat
投薬量 4.5 and 11.7 mg /kg in dogs and rats, respectively
投与方法 i.v.

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長期の保管のために-20°Cの下で製品を保ってください。

人間や獣医の診断であるか治療的な使用のためにでない。

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