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编 号:F745248
分子式:C153H252N44O43
分子量:3395.91
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1mg
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生物活性:
MR 409 is a selected growth hormone-releasing hormone (GHRH) agonist. MR 409 has remarkable neuroprotective effects through enhancing endogenous neurogenesis in cerebral ischemic mice. MR 409 also inhibits the in vivo growth of lung cancer.

体内研究:
MR 409 (MR-409) inhibits the in vivo growth of lung cancer xenografted into nude mice.MR 409 (5 μg; s.c. treated daily for 4 weeks) reduces nociceptive response in mice.Animal Model:Adult C57/BL6 male mice (5 weeks old, weight 20-22 g)
Dosage:5 μg
Administration:Treated daily by subcutaneous (s.c.) administration of 0.1 mL solution
Result:Showed maximal antinociceptive effects at 2 weeks. Sustained a moderate analgesic effect at 4 weeks.

体外研究:
One week post-myocardial infarction (MI), MR 409 (MR-409) significantly reduces plasma levels of IL-2, IL-6, IL-10 and TNF-α compared to placebo.MR 409 (MR-409; 1 μM) suppresses p53 expression in bovine pulmonary arterial endothelial cells (BPAECs).MR 409 (1 μM) induces the activation of JAK2, STAT3 and ERK1/2.MR 409 (MR-409; 1 and 5 μM) decreases LPS-induced PGE2 and 8-iso-PGF2α levels, in a dose-dependent manner. MR 409 (1 and 5μM) decreases LPS-induced lactate dehydrogenase (LDH) activity and nitrite production, without showing a dose-dependent effect. MR 409 (1 and 5 μM) decreases LPS-induced gene expression of COX-2, NF-κB and iNOS in colon specimens, without a dose-dependent effect. MR 409 (MR-409) can stimulate endogenous neurogenesis and improve the tMCAO-induced loss of neuroplasticity. MR 409 also enhances the proliferation and inhibits apoptosis of neural stem cells treated with oxygen and glucose deprivation-reperfusion.
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