Compound grandifoliol, its preparation method and its application
A kind of technology of rattanol and compound, which is applied in the field of medicine and can solve problems such as liver and kidney function damage
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Embodiment 1
[0043] Embodiment 1 extracts and isolates the method for the separation compound grandifoliol (grandifoliol) from Salvia grandiflorum:
[0044] 5 kg of Sage herb medicinal material was extracted three times with 95% ethanol to obtain 386 g of extract, which was quickly eluted by silica gel column chromatography, and the eluent was sequentially selected from petroleum ether, chloroform, ethyl acetate, and methanol, and roughly divided into four parts . Chloroform part 21.8g, separated by silica gel column chromatography for many times, sherwood oil-ethyl acetate and sherwood oil-acetone gradient elution, every 250ml is a distillate, obtains grandifoliol (grandifoliol) crude product in the 63rd part, Purified by preparative HPLC (80% methanol-water, flow rate 6ml / min, 254nm wavelength detection), 500 μL sample was taken, and 35 mg of the compound grandifoliol was obtained at tR=69.6min, which was light yellow powder.
[0045] The physical and chemical properties and spectral d...
Embodiment 2
[0052] Example 2 Inhibitory effect of the compound grandifoliol on the proliferation of vascular smooth muscle cells induced by serum
[0053] The proliferation and phenotypic changes of vascular smooth muscle cells (VSMC) are the main pathological basis of atherosclerosis. In this experiment, a serum (FBS)-induced VSMC cell proliferation model was established, and the inhibitory activity of the compound of the present invention on FBS-induced VSMC proliferation was further observed. The primary cultured vascular smooth muscle cells were digested with 0.125% trypsin, seeded in 96-well plates, and cultured for 24 hours until subconfluent state. Change to serum-free culture for 24h to make the cells tend to rest (G 0 period), after the sample was treated for 4 hours, 10% FBS was added and cultured for 48 hours. Use the MTT method to detect the proliferation of the cells, and calculate the inhibition rate of the sample to FBS-induced VSMC cell proliferation. When the inhibition...
Embodiment 3
[0058] Example 3 The protective effect experiment of compound grandifoliol (grandifoliol) on hydrogen peroxide injury of human umbilical vein endothelial cells
[0059] with H 2 o 2 The vascular endothelial cells were damaged, and the mitochondrial activity of the cells was measured by MTT method. According to the change of optical density value, observe the sample pair H 2 o 2 Protective effect on vascular endothelial cell injury. CRL-1730 human umbilical vein endothelial cells were counted and cultured in 96-well flat-bottom culture plates. After 24 hours, the cells were first treated with the compound of the present invention for 4h, and then treated with H 2 o 2 Treated for 20 hours to create a model of cell oxidative damage, and use the MTT method to measure the mitochondrial activity of vascular endothelial cells to observe the effect of the sample on H 2 o 2 For the protective effect of oxidative damage on vascular endothelial cells, re-screening (5, 0.5, 0.05, ...
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