paf-an-1

PAF-AN-1是一种新型有效的血小板激活因子受体 (PAF) 拮抗剂，参与研究过敏性死亡。

PAF C-18:1 is a naturally occurring phospholipid produced by cells upon stimulation and plays a role in the establishment and maintenance of the inflammatory response. It is less potent than PAF C-16 and PAF C-18 in the induction of neutrophil chemotaxis, but is equipotent to PAF C-16 and PAF C-18 in promoting eosinophil migration. PAF C-18:1 activates the PAF receptor and has been used in antibody binding experiments to determine the importance of an acyl linkage at the sn-2 position for recognition at this receptor.

Orlistat-d3 is intended for use as an internal standard for the quantification of orlistat by GC- or LC-MS. Orlistat is a digestive lipase inhibitor. It inhibits diacylglycerol lipase α (DAGLα), DAGLβ, α β-hydrolase domain-containing protein 12 (ABHD12), ABHD16A, and platelet-activating factor acetylhydrolase (PAF-AH; IC50s = 0.06, 0.1, 0.08, 0.03, and 0.05 µM, respectively), as well as pancreatic lipase and hormone-sensitive lipase (IC50s = 0.65 and 2.1 µg ml, respectively) but does not inhibit fatty acid amide hydrolase (FAAH) or KIAA1363 (IC50s = >100 µM for both). Orlistat decreases ionomycin-induced production of the endocannabinoid 2-arachidonoyl glycerol (2-AG) in N18TG2 murine neuroblastoma cells when used at a concentration of 1 µM. It also inhibits fatty acid synthase (FASN; Kiapp = ~0.1 µM for the human enzyme) and the proliferation of PC3 prostate cancer cells in a concentration-dependent manner. Orlistat (10 mg kg) decreases serum cholesterol levels and total bod......

2-O-Ethyl PAF C-16 作为 PAF 的一种同系物，充当 PAF 受体（Platelet-activating Factor Receptor (PAFR)）的竞争型配体。它能够阻断 PAF 拮抗剂 WEB 2086 与 PAF 受体的结合，表现出 21 nM 的 IC50 值。

1-Cinnamoylpyrrolidine 是从 Piper caninum 制备的天然产物，可作为一种 DNA 链断裂剂，在Cu2+ 存在下诱导质粒 pBR322 DNA 超螺旋的松弛。1-Cinnamoylpyrrolidine 对 PAF 诱导的血小板聚集有抑制作用，IC50 值为 37.3 μM。

Kadsurenin C (compound 1) 是从Piper kadsura地上部分分离的新木脂素，具有抗炎特性，并表现出显著的PAF（血小板激活因子）拮抗活性，其IC50值为5.1 μM。