Application of compound laetispicine in the process for preparing pharmaceutical composition
A technology of phytocarpine and its compound, which is applied in the field of traditional Chinese medicine pharmacy, and can solve problems such as unsatisfactory clinical treatment
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Embodiment 1
[0015] Example 1 Extraction and separation of phytocarpine
[0016] After pulverizing 1000g of raw medicinal materials, add 6 times the amount of 95% industrial alcohol to heat and reflux for 2 hours, filter after cooling, add 4 times the amount of 95% industrial alcohol to the residue for secondary reflux, cool and filter, and combine the filtrates twice. Concentrate to dryness under reduced pressure to obtain 50 g of ethanol extract. Add an appropriate amount of water to the ethanol extract, use five times the amount of petroleum ether, benzene, chloroform, and ethyl acetate to carry out 1:1 extraction, a small amount for multiple times, heat to reflux, cool and separate, combine the organic phases, and concentrate under reduced pressure. 0.5 g of petroleum ether extract, 8 g of benzene extract, 6 g of chloroform extract, and 10 g of ethyl acetate extract were obtained. 10 g of ethyl acetate extract was subjected to silica gel column chromatography, and gradient elution was...
Embodiment 2
[0017] Example 2 Isotope-labeled Central Nervous System Monoamine Transmitter Reuptake Inhibition Test
[0018] 150-250g Sprague-Dawley male rats were taken, the neck was broken, the brain was taken out, and the brain area was stripped. The hypothalamus was used for 5-HT and NE reuptake inhibition experiments, and the striatum was used for DA reuptake inhibition experiments. Weighed, Add 25mL / g ice-cold 0.32M sucrose solution, and homogenize in an ice bath. The homogenate was refrigerated and centrifuged at 1000 rpm for 10 min, the precipitate was discarded, and the supernatant was taken, and refrigerated and centrifuged at 10000-17000 rpm for 20 min. The precipitate is the synaptosome. Suspend with the aforementioned 0.32M sucrose solution at a ratio of 10mL / g (according to the wet weight of brain tissue). Determine protein content. spare.
[0019] h 3 The labeled monoamine transmitter was diluted 200 times with freshly prepared Krebs solution. Take 800μL+20μL drug (or ...
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