GYKI 53655 hydrochloride
(Synonyms: LY300168 hydrochloride) 目录号 : GC14842
GYKI 53655 (LY300168) hydrochloride 是一种 α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) 拮抗剂。
Cas No.:143692-48-2
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
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Cell experiment: |
Whole-cell voltage clamp recordings are made from single cells with use of the tight seal whole cell configuration of the patch-clamp technique. Experiments are performed at room temperature (20 to 22°C) and recorded on an amplifier. GYKI53655 hydrochloride application is via a series of perfusion lines to a multi-barrelled applicator and exchange of solutions under the present recording conditions is approximately 100 msec. For the acutely isolated cerebella Purkinje neurons, GYKI53655 hydrochloride application is by bath perfusion and occurs within approximately 15 sec. Curve fitting to data points is based upon the equationy=100(Dn/(Dn+IC50n)), where the slope of the line n is fixed to a value of 1 and D is the antagonist concentration. Statistical significance is determined by one-way ANOVA followed by Student- Newman-Keulstest[1]. |
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Animal experiment: |
Experiments are performed on 27 male Wistar rats (260 to 350 g). Briefly, rats are anaesthetized with halothane in O2 and tracheal, carotid and jugular cannulae are inserted. The lumbo-thoracic spinal cord is exposed and cut at T9-T11 and the animal is prepared for extracellular recordings of single dorsal horn neurone action potentials. Anaesthesia after surgery is maintained with α-chloralose. Jugular cannulae are inserted. GYKI53655 hydrochloride is administered intravenously. The effect of GYKI53655 hydrochloride is expressed quantitatively as percentages of control excitatory amino acids (EAA) responses, where control is taken as the mean of the last 3 pre-drug counts; mean values±s.e.mean are indicated. No corrections for spontaneous activity are made[2]. |
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References: [1]. Bleakman D, et al. Activity of 2,3-benzodiazepines at native rat and recombinant human glutamate receptors in vitro: stereospecificity and selectivity profiles. Neuropharmacology. 1996;35(12):1689-702. |
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GYKI53655 hydrochloride is an α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) antagonist.
GYKI53655 hydrochloride (LY300168) inhibits α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) (10 μM)-induced responses with IC50 value of 5.9±0.1 μM. GYKI53655 hydrochloride inhibits AMPA (10 μM) responses inrecombinant G1uR4 expressing HEK293 cells with IC50 value of 4.6±0.4 μM. Using 3 μM cyclothiazide the inhibition produced by GYKI53655 hydrochloride is 79±2% (n=4 cells). GYKI53655 hydrochloride produces only small inhibitions of kainate-induced currents at 30 μM and inhibits kainate-induced currents at a concentration of 100 μM by 12±2 (n=4) and 18±4 (n=4), respectively. GYKI53655 hydrochloride inhibits AMPA receptor-mediated responses in cerebella Purkinje neurons with an IC50 value of 1.5±0.1 μM[1].
GYKI53655 hydrochloride (4 mg/kg) is found to have a short-lasting depressant effect on neuronal responses to iontophoreticα-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA), with a half-recovery time of approximately 7 min. GYKI53655 hydrochloride (4 and 8 mg/kg) substantially depresses or completely abolishes AMPA responses. Results demonstrate the dose-dependence of GYKI53655 hydrochloride (2 to 8 mg/kg) in depressing responses to AMPA. At the highest doses tested, GYKI53655 hydrochloride reduces AMPA responses to a comparable degree[2]. Tonic fit and death are completely prevented by GYKI53655 hydrochloride at dose over 5.0 mg/kg. The ED50 value of GYKI53655 hydrochloride is 2.2 mg/kg i.p. The maximal effects of GYKI53655 hydrochloride lasts 3 h then the exit inhibition effect of GYKI53655 hydrochloride falls to 20% 1 h later[3].
References:
[1]. Bleakman D, et al. Activity of 2,3-benzodiazepines at native rat and recombinant human glutamate receptors in vitro: stereospecificity and selectivity profiles. Neuropharmacology. 1996;35(12):1689-702.
[2]. Chizh BA, et al. A comparison of intravenous NBQX and GYKI 53655 as AMPA antagonists in the rat spinal cord. Br J Pharmacol. 1994 Jul;112(3):843-6.
[3]. Szabados T, et al. Comparison of anticonvulsive and acute neuroprotective activity of three 2,3-benzodiazepine compounds, GYKI 52466, GYKI 53405, and GYKI 53655. Brain Res Bull. 2001 Jun;55(3):387-91.
| Cas No. | 143692-48-2 | SDF | |
| 别名 | LY300168 hydrochloride | ||
| 化学名 | (S)-5-(4-aminophenyl)-N,8-dimethyl-8,9-dihydro-7H-[1,3]dioxolo[4',5':4,5]benzo[1,2-d][1,2]diazepine-7-carboxamide hydrochloride | ||
| Canonical SMILES | O=C(NC)N([C@@H](C)CC1=C2)N=C(C(C=C3)=CC=C3N)C1=CC4=C2OCO4.Cl | ||
| 分子式 | C19H20N4O3.HCl | 分子量 | 388.85 |
| 溶解度 | DMSO : ≥ 160 mg/mL (411.47 mM); H2O : 8 mg/mL (20.57 mM; Need ultrasonic and warming) | 储存条件 | 4°C, sealed storage, away from moisture |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.5717 mL | 12.8584 mL | 25.7169 mL |
| 5 mM | 0.5143 mL | 2.5717 mL | 5.1434 mL |
| 10 mM | 0.2572 mL | 1.2858 mL | 2.5717 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
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