中文名 | 古伦宾 |
英文名 | Columbin |
别名 | 咖伦宾 古伦宾 非洲防己苦素 古伦宾对照品 COLUMBIN游离态 古伦宾, 来源于青牛胆 COLUMBIN 古伦宾 |
英文别名 | Columbin Tinosporin (1s,2s,3s,5s,8r,11r,12s)-5-(3-furyl)-12-hydroxy-3,11-dimethyl-6,14-dioxatetracyclo[10.2.2.02,11.03,8]hexadec-15-ene-7,13-dione (1R,2S,3S,5S,8R,11R,12R)-5-(3-Furyl)-12-hydroxy-3,11-dimethyl-6,14-dioxatetracyclo[10.2.2.02,11.03,8]hexadec-15-ene-7,13-dione |
CAS | 546-97-4 |
化学式 | C20H22O6 |
分子量 | 358.39 |
密度 | 1.36 |
熔点 | 190-191℃ |
沸点 | 410.82°C (rough estimate) |
比旋光度 | D +52.5° (pyridine) |
溶解度 | 易溶于甲醇、乙酸乙酯,几乎不溶于水 |
折射率 | 1.4450 (estimate) |
酸度系数 | 12.14±0.70(Predicted) |
存储条件 | -20°C |
外观 | 白色结晶 |
物化性质 | 白色针状结晶,易溶于甲醇、乙酸乙酯,几乎不溶于水,来源于金国榄。 |
MDL号 | MFCD02682955 |
体外研究 | Treatment with columbin or l-NAME inhibits LPS/IFN-γ-induced NO production without affecting the viability of RAW264.7. Pre-treatment of stimulated cells with columbin does not inhibit the translocation of NF-κB to the nucleus in LPS-stimulated cells. COX-1 and COX-2 inhibitory activities of columbin are 63.7±6.4% and 18.8±1.5% inhibition at 100μM, respectively. The interaction of columbin with Tyr385 and Arg120 signifies its higher activity in COX-2, as Tyr385 is reported to be involved in the abstraction of hydrogen from C-13 of arachidonate, and Arg120 is critical for high affinity arachidonate binding. |
体内研究 | Columbin inhibits oedema formation in mice paw. At doses of 300 mg/kg and 700 mg/kg, columbin inhibits inflammation from 0 to 5 h and the results are comparable to that of aspirin as a standard anti-inflammatory drug. The inhibitory effect of columbin on carrageenan induced paw oedema in mice may be due to the suppression of the release of mediators responsible for inflammation including prostaglandin. Columbin is poorly bioavailable (2.8% p.o. and 14% i.p.) in rats, but its transport is rapid across the Caco-2 cell monolayers, suggesting that extensive first-pass metabolism in the liver is the likely reason for its poor bioavailability. |
WGK Germany | 3 |
海关编号 | 29322090 |
下游产品 | 异古伦宾 |
参考资料 展开查看 | 1. 林才志, 谢海源, 黄振青,等. 壮药汗衣台有效成分古伦宾,非洲防己碱对HBV启动子的影响[J]. 中药药理与临床, 2019, 035(004):72-77. |
古伦宾(Gelatin)是一种由动物骨骼、韧带和皮肤等制成的胶质物质。它是一种无色无味的半透明胶状物,其主要成分是蛋白质和水。
古伦宾具有多种用途。
,古伦宾的制备过程通常包括以下几个主要步骤:将动物骨骼、韧带和皮肤进行清洗和处理,去除杂质。然后,将净化后的动物组织浸泡在水中,以便蛋白质溶解。随后,通过蒸煮、过滤和浓缩等工艺,将蛋白质溶液纯化并浓缩成胶状物质。经过干燥和粉碎,就可以得到成品的古伦宾。
古伦宾在大多数情况下是安全的,因为它主要由天然蛋白质组成。个别人可能对古伦宾过敏,引发过敏反应,如皮疹、呼吸困难等。如果有过敏史或对动物蛋白过敏的人应谨慎使用古伦宾制品。
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