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DPDPE TFA 是选择性 δ-阿片受体激动剂肽，在体内具有镇痛作用。

alpha-Endorphin acetate 是具有特征生物活性的原阿片黑皮质素家族的相关肽，从单个人类垂体中纯化至同质。

β-Endorphin (1-27) (human) acetate 存在于大脑垂体和下丘脑中，具有镇痛活性。 β-Endorphin (1-27) (human) acetate 是一种阿片受体激动剂，对 μ-阿片受体和 δ-阿片受体具有较好的亲和力。

N-Acetyl-α-Endorphin acetate(88264-63-5 free base) 是 N 末端乙酰化的 α-Endorphin。 α-内啡肽是一种内源性 opioid 肽。

β-Endorphin (β-EP) is an endogenous opioid neuropeptide with diverse biological activities. It is produced via piomelanocortin cleavage in the pituitary gland, hypothalamus, and in lymphocytes, then migrates to its sites of action which include plasma, gut, skin, placenta, cerebrospinal fluid, and cardiac tissues. β-EP induces concentration-dependent decreases in electrically stimulated contraction of the mouse vas deferens that can be reversed by the μ-opioid antagonist CTP and δ-opioid antagonist ICI 174,864. In vivo, β-EP (5 μg, i.c.v.) slows gastrointestinal transit in mice. β-EP (0.5 or 5 μg, i.c.v.) stimulates food intake in rats for 4 to 6 hours, however, this effect is not prolonged with continuous infusion. It antagonizes the appetite-suppressive effects of α-melanocyte-stimulating hormone (α-MSH) for the first three days post administration. β-EP also reduces paralytic demyelination induced by the murine coronavirus MHV-JHM in immunocompetent, but not irradiated or immune-incompetent, mice and rats.

Acetyl β-endorphin (1-26) is a neuropeptide found in rat hippocampus, brain stem, and pituitary. It is also present in the human hypothalamus, where it comprises approximately 4.9% of total β-endorphin peptides. Acetyl β-endorphin (1-26) is produced through posttranslational processing of β-endorphin and is processed similarly in rat and human hypothalamus. Levels of acetyl β-endorphin (1-26) increase in the rat pars intermedia and brain stem following chronic administration of haloperidol .

β-Endorphin (1-27) is an endogenous peptide that binds to μ-, δ-, and κ-opioid receptors (Kis = 5.31, 6.17, and 39.82 nM, respectively, in COS-1 cells expressing rat receptors). It binds to rat and mouse brain membrane preparations (IC50s = 1.1 and 5.7 nM, respectively) and induces chemotaxis of human monocytes in vitro when used at a concentration of 1 nM. Intracerebroventricular administration of β-endorphin (1-27) increases the latency to tail withdrawal in response to thermal stimulation in mice with a median antinociceptive dose (AD50) of 1,500 pmol per animal. It inhibits antinociception induced by β-endorphin in mice in response to thermal stimuli when administered at a dose of 65 pmol per animal. In rats, β-endorphin (1-27) does not affect drug-associated place preference when administered at doses up to 20 μg, i.c.v., but inhibits β-endorphin-induced place preference when administered at a dose of 10 μg per animal.

Gonadorelin Acetate (33515-09-2 free base) (Luteinizing Hormone Releasing Hormone (LH-RH)) 是下丘脑神经肽，在控制生殖功能中起关键作用。

β-Endorphin是一种内源性阿片类神经肽，作为opioid receptor激动剂，主要与μ-阿片受体发生作用。该肽在中枢和周围神经系统特定神经元中表达，是人类体内三种内啡肽之一。β-Endorphin在减轻压力、维护生理平衡及调控神经系统的疼痛感知中发挥作用。

β-Endorphin (1-27) (human) 是一种 opioid 拮抗剂，与 μ-、δ- 及 κ-阿片受体结合，其 Kis 分别为 5.31、6.17 及 39.82 nM。该化合物还能够抑制由 β-Endorphin 及 etorphine 引起的痛觉消失。

β-Endorphin, rat (β-Lipotropin 61-91) 是一种在心血管调节中起作用的神经肽。该化合物能导致大鼠出现显著的持续性肌肉僵硬和静止，这种效应与紧张状态相似。

β-Endorphin, equine (TFA) is an endogenous opioid peptide, which binds at high affinity to both μ/δ opioid receptors.

N-Acetyl-α-Endorphin is a chemical compound consisting of α-Endorphin that has been acetylated at the N-terminal. α-Endorphin, in turn, is an endogenous opioid peptide.

α-Neoendorphin (1-8) is an 8-amino acid peptide derived from the N-terminal of α-Neoendorphin, an endogenous opioid peptide in the neoendorphin family, which are proteolytic cleavage products.

Endorphin Beta is A substance produced in the brain, especially in the pituitary gland, Endorphin Beta blocks the sensation of pain. Endorphin Beta is produced in response to pain, exercise, and other forms of stress. Endorphin Beta belongs to a group of

beta-Neoendorphin acetate(77739-21-0 free base) 是 κ-opioid 受体的激动剂

Veldoreotide, also known as Somatoprim, is a unique somatostatin receptor subtypes 2-, 4- and 5-selective analogue which effectively reduces GH secretion in human GH-secreting pituitary adenomas, even in Octreotide non-responsive tumours.

Acetyl-β-Endorphin (human) 是一种由多肽筛选发掘的多肽。多肽筛选作为重要的研究工具，通过免疫测定法集合活性多肽，应用于蛋白相互作用、功能分析、抗原表位筛选，特别在活性分子研究与开发方面发挥作用。

DALDA 是一种强效和高选择性μ-opioid receptor 激动剂，其Ki 为 1.69 nM。 DALDA 具有抗痛和呼吸作用。

CTAP TFA 是一种强效、高选择性的、可透过血脑屏障的阿片受体 (μopioid receptor) 拮抗剂，IC50为 3.5 nM。CTAP TFA 对δ opioid 受体 (IC50=4500 nM) 和生长抑素受体 (somatostatin receptors) 具有超过 1200 倍的选择性。CTAP TFA 可用于L -多巴胺 诱导的运动障碍 (LID) 和阿片类活性分子过量或成瘾的研究。

Potent and selective μ opioid receptor antagonist (IC50 = 3.5 nM). Displays > 1200-fold selectivity over δ opioid and somatostatin receptors. Brain penetrant and active in vivo.

Activator of protein kinase C; attached to cell permeabilization Antennapedia domain vector peptide. Consists of peptide derived from the C2 domain of PKC β linked by a disulfide bridge to the Antennapedia domain vector peptide. The Antennapedia peptide i

Federelin (Gonadorelin[6-D-Phe]) 是促性腺激素 (GnRH) 的类似物。

Dynorphin A TFA, 作为一种内源性阿片肽，主要在中枢神经系统（CNS）中发挥抑制性神经传导的作用。该化合物不仅是kappa阿片受体（KOR）的高效激动剂，还能激活其他阿片受体，包括mu（MOR）和delta（DOR）。Dynorphin A TFA具有诱导神经元死亡的能力，因此在神经系统疾病的研究中具有应用价值。