guinea pig

Neuropeptide with many biological actions

VIP Guinea pig TFA，作为一种胃肠激素，兼具神经递质功能，能够刺激胚胎生长，起到营养和有丝分裂因子的作用。

Myelin Basic Protein (MBP) (68-82), guinea pig 是一种髓鞘碱性蛋白 (MBP) 的片段。

Scyliorhinin I 是一种作用于速激肽-1 (NK-1) 及速激肽-2 (NK-2) 受体的激动剂.在大鼠颌下腺NK-1受体上的Ki值达到0.9 nM, 而在仓鼠膀胱NK-2受体上的Ki值为2 nM.此外,Scyliorhinin I 还能有效引起豚鼠回肠纵向肌肉的收缩.

Tyr-α-CGRP is an N-terminal extended tyrosinated analogue of α-calcitonin gene-related peptide . It binds to amylin receptors AMY1 and AMY3 in COS-7 cells expressing the human receptors (IC50s = 141 and 1.86 nM, respectively). Tyr-α-CGRP also binds to and stimulates cAMP accumulation in rat L6 myocytes (IC50 = 4 nM; EC50 = 12 nM). It also binds to rat brain and spleen membrane preparations (IC50s = 0.2 and 0.5 nM, respectively), induces positive chronotropic and inotropic effects in isolated right and left guinea pig atria (EC50s = 282 and 74 nM, respectively), and inhibits the twitch response in rat vas deferens (EC50 = 1.9 nM).

CCK (26-30) is an N-terminal fragment of CCK , a peptide hormone found in the intestine and brain that stimulates digestion, mediates satiety, and is involved in anxiety. The sulfated form of CCK (26-30) inhibits binding of [125I]CCK-33 to guinea pig cortical membranes by 10% when used at a concentration of 0.1 mM.

CCK (26-31) is an N-terminal fragment of CCK , a peptide hormone found in the intestine and brain that stimulates digestion, mediates satiety, and is involved in anxiety. The sulfated form of CCK (26-31) inhibits binding of [125I]CCK-33 to guinea pig cortical membranes by 21% when used at a concentration of 0.1 mM.

CCK (27-33) is a C-terminal fragment of CCK , a peptide hormone found in the intestine and brain that stimulates digestion, mediates satiety, and is involved in anxiety. Non-sulfated CCK (27-33) inhibits binding of [3H]naloxone in rat cerebellum membranes (IC50 = 4 uM) and inhibits electrically-stimulated contraction of isolated guinea pig ileum (IC50 = 17 uM), an effect that can be reversed by naloxone. Unlike sulfated CCK (27-33), the non-sulfated form does not reduce exploratory behavior in mice when administered at doses up to 1 uMol/kg.

Galanin is a neuropeptide with diverse biological activities. [1][2][3][4][5] It binds to rat galanin (GAL) receptor subtypes GAL1-3 (IC50s = 0.339, 1.35, and 3.31 nM, respectively) and human GAL1-3 (IC50s = 0.288, 1.62, and 12.3 nM, respectively). [1] Galanin binds to and inhibits contraction of guinea pig gastric smooth muscle cells induced by carbachol . [2] In vivo, Galanin (6 nmol, i.c.v.) increases feeding behavior in rats and increases latency to hindpaw withdrawal in response to heat and mechanical stimulation in a rat model of carrageenin-induced inflammation when administered at a dose of 2 nmol injected into the nucleus accumbens.[3][4] Galanin (5 μg, i.c.v.) also inhibits acetylcholine release induced by scopolamine in the ventral hippocampus of freely moving rats. [5]

[D-Trp11]-Neurotensin is a compound that functions as a selective antagonist of Neurotensin (NT) in perfused rat hearts, while exhibiting full agonist properties in guinea pig atria and rat stomach strips. Additionally, this compound can inhibit hypotension induced by NT.

Substance P (3-11)，作为P 物质 (SP) 的片段肽，具备穿透血脑屏障的能力，且对豚鼠回肠显示出收缩活性。

Substance P (2-11)为P物质（SP）片段肽，具有对豚鼠回肠产生收缩活性的特性。同时，Substance P (2-11)能够抑制3H SP在BBMEC单分子层中的渗透。

PL-3994作为NPR-A的激动剂，展现了对中性肽酶的耐药特性，具有支气管扩张效应。对预收缩豚鼠气管，PL-3994表现出浓度依赖性的弛豫作用，其IC50值为42.7 nM。

Leumorphin, human 作为一种 kappa 型阿片受体 (κ-opioid receptor) 激动剂，有效抑制了豚鼠回肠肌间神经丛-纵向肌肉制剂的收缩。

[D-Pro2,D-Phe7,D-Trp9]Substance P为Substance P的模拟物，并充当其抑制剂，能间接收缩豚鼠回肠。

神经肽Y（Neuropeptide Y, NPY）是一种参与调节食欲、血管收缩、心脏收缩力和肠道分泌的神经肽，同时也是NPY受体Y1、Y2和Y5的激动剂。它在全身范围内表达。NPY能够在表达大鼠Y1或Y2以及表达大鼠Y5的HEK293细胞中选择性抑制由forskolin诱导的cAMP积累，而对表达大鼠Y4受体的L-M(TK-)细胞的影响较小（EC50分别为0.15、2.7、0.66和>1,000 nM)。在分离的豚鼠心脏模型中，NPY能够增加灌注压（EC30 = 1.3 nM）。神经内注射NPY（300 pmol/动物）能够在大鼠中增加食物摄取量。

GR-73632 强效和选择性速激肽 NK1 受体激动剂，可通过传递瘙痒信号的 NK1 受体直接作用于初级感觉神经元的外周末端。

Substance P (1-9) is a nonapeptide that reduces the inactivation of substance P in the guinea-pig ileum and urinary bladder, and is responsible for various excitatory effects on central and peripheral neurons.

Substance P 1-9 aceate 是九肽，可减少豚鼠回肠和膀胱对 P 物质的失活。

Cell-permeable calmodulin (CaM) agonist that binds to the EF-hand/Ca2+-binding site; produces CaM-dependent activation of phosphodiesterase. Also binds to cytoplasmic sites on other Ca2+ channels, including NMDA and HIV-1 gp120-activated channels, inhibit

Potent agonist of the nociceptin (ORL1) receptor, demonstrated both in vitro and in vivo. Selective, competitive antagonism at the nociceptin receptor has also been reported (pA2 = 7.02 and 6.75 in the guinea pig ileum and mouse vas deferens respectively)

Potent, metabolically stable neurotensin receptor agonist peptide (IC50 = 0.15 nM for inhibition of [125I]-NT binding to neonatal mouse brain; EC50 = 1.9 nM for contraction of guinea pig ileum). Produces long-lasting hypothermic, neuroprotective and analg

JMV 449 acetate(139026-66-7 Free bsae) 是一种有效的、代谢稳定的神经降压素受体激动剂肽（抑制[125I]-NT与新生小鼠大脑的结合的IC50 = 0.15 nM；对于豚鼠收缩的EC50 = 1.9 nM 回肠）。 JMV 449 acetate 在小鼠体内中枢给药后产生持久的低温、神经保护和镇痛作用。

Potent bradykinin receptor agonist. Highly selective for mammalian arterial smooth muscle bradykinin receptors, displaying ~ 50-fold greater potency than bradykinin. Elicits dose-dependent contractile effects in smooth muscle of guinea pig ileum (EC50 = 4