Substance P 1-7
目录号 : GC37696
Substance P (7-11) 是神经肽P物质 (SP) 的片段。Substance P (7-11) 可对孤束核产生抑制和缓和作用。
Cas No.:68060-49-1
Sample solution is provided at 25 µL, 10mM.
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Substance P (7-11) is a fragment of the neuropeptide, substance P (SP). Substance P (7-11) gives depressor and bradycardic effects when applied to the nucleus tractus solitarius.
Substance P (7-11) is found to act as a very potent antagonist against the SP-induced responses and is formed locally in the nigra after SP injection. It is proposed that Substance P (7-11) is an endogenous modulator of SP actions[1]. Injection of low doses of Substance P (7-11) (1.0-4.0 pM simultaneously with SP or SP(5-11) (0.1 nM), reduce aversive behaviours induced by SP or SP(5- 11) significantly. These results indicate that SP(1-7) formed endogenously could modulate the actions of SP or SP(5-11) in the spinal cord[2].
[1]. Herrera-Marschitz M, et al. The substance P(1-7) fragment is a potent modulator of substance P actions in the brain. Brain Res. 1990 Jun 25;521(1-2):316-20. [2]. Sakurada T, et al. Substance P(1-7) antagonizes substance P-induced aversive behaviour in mice. Neurosci Lett. 1988 Dec 19;95(1-3):281-5.
Animal experiment: | Rats[1]Sprague-Dawley male rats weighing 250-300 g are anaesthetized with halothane and placed in a stereotaxic frame. An injection cannula, conically shaped with a penetration tip diameter of approximately 0.15 mm is loared into the SNR. Saline (0.2 μL), SP (0.007-0.7 nM) or Substance P (7-11) (0.01-1 nM) is injected into the left substantia nigra, pars reticulata (SNR) and the rat is placed in a rotometer. The substances are injected in a total volume of 0.2 μL over a period of 1 min. A group of animals is sacrificed by decapitation 1 hour after the injection, their brains are immediately removed and tissue samples are taken from left and right striatum, globus pallidum (GP) and substantia nigra (SN). Samples are assayed for SP and SP(1-7)[1].Mice[2] The accumulated response time (s) of reciprocal movements of hindlimb scratching, biting, fore- and hindpaw licking are measured in Male mice (STD strain, 23-28 g) during the whole period of aversive response and 20 min at maximum. Substance P (7-11) is tested for its ability to inhibit the aversive response produced by intrathecal injection of SP or SP(5-11) (0.1 nM/mouse). Substance P (7-11) (1, 2, 4 pM) is then administered together with SP or SP(5-11)[2]. |
References: [1]. Herrera-Marschitz M, et al. The substance P(1-7) fragment is a potent modulator of substance P actions in the brain. Brain Res. 1990 Jun 25;521(1-2):316-20. | |
| Cas No. | 68060-49-1 | SDF | |
| 分子式 | C41H65N13O10 | 分子量 | 900.04 |
| 溶解度 | Soluble in DMSO | 储存条件 | Store at -20°C |
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.1111 mL | 5.5553 mL | 11.1106 mL |
| 5 mM | 0.2222 mL | 1.1111 mL | 2.2221 mL |
| 10 mM | 0.1111 mL | 0.5555 mL | 1.1111 mL |
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动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
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工作液浓度： mg/ml；
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2.
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- Purity: >98.00%
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