Freeze dried injection powder preparation for treating coronary heart disease and its preparing method
A technology of freeze-dried powder injection and freeze-dried powder injection, which is applied in the field of freeze-dried powder injection for the treatment of coronary heart disease and its preparation, can solve the problems of increased cost input and unfavorable large-scale production, and achieve increased coronary blood flow , Improve blood rheology, improve the effect of myocardial ischemia
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Embodiment 1
[0052] 1. Protective effect on myocardial ischemia-reperfusion injury in rats
[0053] Experimental animals and models: male wistar rats, weighing 200-250g.
[0054] Experimental Drug: Guanxinning Injection
[0055] Guanxinning freeze-dried powder injection of the present invention
[0056] Experimental instruments and reagents: MDA kits, SOD kits, GSH·PX kits and P enzyme kits, and other reagents are domestic fractionated pure or biochemical reagents. High-speed desktop centrifuge, XHF-1 high-speed disperser, high-speed refrigerated centrifuge, U-754 spectrophotometer.
[0057] experimental method:
[0058] Ischemia-reperfusion group: Anesthetized by intraperitoneal injection of pentobarbital (50ml / kg), fixed in supine position. After thoracotomy, the left anterior descending coronary artery was ligated for 30 minutes, the ligature was cut and reperfused for 20 minutes to create an ischemia-reperfusion injury model. Myocardial ischemia group: only the left anterior desce...
Embodiment 2
[0072] (1) The proportioning weight of raw materials is
[0073] Salvia miltiorrhiza 2000 grams, Chuanxiong 2000 grams
[0074] (2) Mix red ginseng and Rhizoma Chuanxiong, add 10 amounts of water to soak for 1 hour, extract 3 times, the first time is 2 hours, add 8 times the amount of water for the second and third times, extract for 1.5 hours each, combine the decoction and filter Get the filtrate.
[0075] (3) When the filtrate was concentrated under reduced pressure to 60° C., the relative density was 1.1 to obtain 2000 ml of concentrated solution.
[0076] (4) Add ethanol to the concentrated solution to make the alcohol content reach 75%, place it, filter, reclaim the ethanol, concentrate to a relative density of 1.1, carry out the second ethanol precipitation, add ethanol to make the alcohol content reach 85% and filter, Stand, filter, recover ethanol and concentrate to a relative density of 1.0 to obtain a concentrated solution of 750ml.
[0077] (5) Wet-pack the trea...
Embodiment 3
[0080] (1) The proportioning weight of raw materials is
[0081] Salvia miltiorrhiza 4000 grams, Chuanxiong 4000 grams.
[0082] (2) Mix red ginseng and Rhizoma Chuanxiong, add 10 amounts of water to soak for 1 hour, extract 3 times, the first time is 2 hours, add 8 times the amount of water for the second and third times, extract for 1.5 hours each, combine the decoction and filter Get the filtrate.
[0083] (3) When the filtrate was concentrated under reduced pressure to 60°C, the relative density was 1.1 to obtain 2000 ml of Danshen and Chuanxiong concentrates.
[0084] (4) Add ethanol to the concentrated solution to make the alcohol content reach 75%, place, filter, recover ethanol, concentrate to a relative density of 1.05, carry out second ethanol precipitation, add ethanol to make the alcohol content reach 85% and filter , placed, filtered, recovered ethanol and concentrated to a relative density of 1.0 to obtain 750ml of each concentrated solution.
[0085] (5) Wet-...
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