SB-334867 (Synonyms: SB 334867A) |
| Catalog No.GC13539 |
SB-334867 (SB 334867A) es un antagonista del receptor de orexina-1 (OX1) excelente, selectivo y permeable a la barrera hematoencefÁlica, muestra selectividad sobre OX2 (pKb=7.4), 100 veces mÁs que 5-HT2B, 5-HT2C con pKi valores de 5.4 y 5.3, respectivamente.
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Cas No.: 249889-64-3
Sample solution is provided at 25 µL, 10mM.
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SB-334867 is a selective antagonist of orexin-1 receptor [1].
Orexin-A and orexin-B are two peptides isolated from rat hypothalamus. They are involved in some physiological functions such as the control of feeding, energy metabolism and regulation of the sleep-wake cycle. SB-334867 can inhibit the orexin-A and orexin-B induced calcium responses in CHO-OX1 cells with pKB values of 7.27 and 7.23, respectively. SB-334867 is more selective for OX1 receptor over OX2 receptor. It causes 32.7% and 22% inhibition of orexin-A and orexin-B induced calcium responses in CHO-OX2 cells, respectively. Moreover, SB-334867 is found to reduce both orexin-A-induced and fasting-induced food intake. The acute anorectic effect of it is associated with signi®cant reductions in all active behaviours [1, 2].
References:
[1] Smart D, Sabido-David C, Brough S J, et al. SB-334867-A: the first selective orexin-1 receptor antagonist. British journal of pharmacology, 2001, 132(6): 1179-1182.
[2] Rodgers R J, Halford J C G, Nunes de Souza R L, et al. SB-334867, a selective orexin-1 receptor antagonist, enhances behavioural satiety and blocks the hyperphagic effect of orexin-A in rats. European Journal of Neuroscience, 2001, 13(7): 1444-1452.
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