Antagonists

Marmin
Catalog No: CFN99621

Marmin have anti-ulcer effects, which are ascribed primarily to the maintenance of the mucosal barrier integrity and inhibition of gastric motor activity and secondarily due to the prevention of the effects of endogenous acetylcholine and histamine. It can inhibit contraction of the guinea-pig tracheal smooth muscle, especially by interfering histamine receptor, inhibiting the histamine release from mast, inhibiting intracellular Ca2+ release from the intracellular store and the Ca2+ influx through voltage-dependent Ca2+ channels. Marmin shows a cell-growth inhibitory effect against L1210 and K562 in vitro.S-trans-Marmin shows potent antibacterial, fungicidal, and algicidal properties. Marmin, skimmianine, aegeline, aurapten, zeorin, and dustanin are potential to develop as antihistamine agents, especially as histamine H1 receptor antagonists by interacting with amino acid residues, Asp107, Lys179, Lys191, Asn198, and Trp428 of histamine H1 receptor.
5-Hydroxytryptophan
Catalog No: CFN99742

5-Hydroxytryptophan (5-HTP) is the precursor of serotonin , has been widely used as a dietary supplement to raise serotonin level, it is an effective drug against depression, insomnia, obesity, chronic headaches, etc. 5-HTP supplementation can inhibit endothelial serotonylation, leukocyte recruitment, and allergic inflammation, it also can reduce the symptoms of anxiety/depression of that patients with allergy/asthma. 5-HTP may be involved in inducing the female to stay in copula and delay egg-laying to prevent re-mating of the female.
Isohyenanchin
Catalog No: CFN99894

Isohyenanchin is the potent antagonist of RDLac homo-oligomers, it is also a weak antagonist of ionotropic GABA receptors.
Pseudoginsenoside F11
Catalog No: CFN99963

Pseudoginsenoside F11, a novel partial PPAR γ agonist, can promote adiponectin oligomerization and secretion in 3T3-L1 adipocytes and inhibit obesity-linked phosphorylation of PPAR γ at Ser-273 by Cdk5. It possesses significant neuroprotective activity, has been demonstrated to antagonize the learning and memory deficits induced by scopolamine, morphine and methamphetamine in mice; it also antagonizes the development of analgesia tolerance to morphine and blocks the development of morphine-induced behavioral sensitization via its effect, at least partially, on the glutamatergic system in the mPFC.
Agrimonolide
Catalog No: CFN98073

Agrimonolide is a potential α1 adrenergic receptor antagonist, it exerts anti-inflammatory activity, at least in part, via suppressing LPS-induced activation of JAK-STATs and p38 MAPKs signaling pathway. Agrimonolide and desmethylagrimonolide can effectively increase insulin-mediated glycogen level in heptocytes, they may play an important role in regulating glucose metabolism in insulin-resistance HepG2 cells and could be developed as a promising natural material for diabetes prevention and treatment.