BIMU 8
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
BIMU 8是5-HT4的激动剂,豚鼠回肠和纹状体的Ki值分别为33.9 ± 8.0 nM和12.6 ± 0.9 nM [1,2]。
5-HT4受体属于七次跨膜受体的G蛋白偶联家族成员,与腺苷酸环化酶正向偶联。它存在两种异构体,即5- HT4S和5- HT4L。这两种异构体在其羧基末端的序列和长度上有所不同[3]。
BIMU 8显著降低了丘神经元的K+电流,这是5-HT4受体介导的[4]。在神经元中,浓度范围为0.003-0.1 μM的BIMU 8增加EPSP幅度,但没有改变膜电位。使用1 μM的5-HT3/5-HT4受体拮抗剂tropisetron 可以阻断BIMU 8诱导的EPSP增强。但是1 μM 的5-HT3受体拮抗剂ondansetron未阻断BIMU 8引起的EPSP增强[5]。
在热板实验中,i.p.注射剂量为20-30 mg/kg范围的BIMU 8显著诱导疼痛阈值的增加。给药15分钟后,镇痛效果达到最大,随后减少。45分钟之内这种效果消失。i.c.v注射1 μg胆碱摄取阻断剂HC-3、i.p.注射5 mg/kg抗毒蕈碱药阿托品、i.p.注射10 mg/kg 5-HT4拮抗剂SDZ 205-557和i.p.注射20 mg/kg GR 125487可完全抑制BIMU 8的抗伤害作用[1]。
参考文献:
[1]. Ghelardini C, Galeotti N, Casamenti F, et al. Central cholinergic antinociception induced by 5HT4 agonists: BIMU 1 and BIMU 8. Life sciences, 1996, 58(25): 2297-2309.
[2]. Yoshikawa T, Yoshida N, Mine Y, et al. Affinity of mosapride citrate, a new gastroprokinetic agent, for 5-HT4 receptors in guinea pig ileum. The Japanese Journal of Pharmacology, 1998, 77(1): 53-59.
[3]. Hegde SS, Eglen RM. Peripheral 5-HT4 receptors. The FASEB journal, 1996, 10(12): 1398-1407.
[4]. Fagni L, Dumuis A, Sebben M, et al. The 5-HT4 receptor subtype inhibits K+ current in colliculi neurones via activation of a cyclic AMP-dependent protein kinase. British journal of pharmacology, 1992, 105(4): 973-979.
[5]. Pan H, Galligan JJ. 5-HT1A and 5-HT4 receptors mediate inhibition and facilitation of fast synaptic transmission in enteric neurons. American Journal of Physiology-Gastrointestinal and Liver Physiology, 1994, 266(2): G230-G238.
Physical Appearance | Off-white solid |
Storage | Store at -20°C |
M.Wt | 378.9 |
Cas No. | 134296-40-5 |
Formula | C19H26N4O2·HCl |
Solubility | <37.89mg/ml in DMSO; <28.42mg/ml in H2O |
Chemical Name | 3-isopropyl-N-((1R,3r,5S)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-1-carboxamide hydrochloride |
SDF | Download SDF |
Canonical SMILES | O=C(N1C2=CC=CC=C2N(C(C)C)C1=O)N[C@H]3C[C@@H]4N(C)[C@H](C3)CC4.Cl |
运输条件 | 蓝冰运输或根据您的需求运输。 |
一般建议 | 不同厂家不同批次产品溶解度各有差异,仅做参考。若实验所需浓度过大至产品溶解极限,请添加助溶剂助溶或自行调整浓度。溶液形式一般不宜长期储存,请尽快用完。 |