Drugs used to treat nephritis
A technology of medicine and nephritis, applied in the field of medicine for treating nephritis, can solve the problems of complex composition of active ingredients and complicated preparation methods, and achieve significant diuretic effect, shorten extraction time, and high purity
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Embodiment 1
[0069] The preparation of embodiment 1 ramie extract
[0070] Cut the peduncle stems from Changbai Mountain into pieces of 0.5cm to 4cm, soak 1kg of peduncle in 5kg of petroleum ether for 4 hours, reflux and extract for 1 hour, pour off the petroleum ether, and volatilize the petroleum ether in the obtained medicine dregs Clean; add 5 kg of ethanol with a mass concentration of 90% to the obtained medicinal residues, and reflux for 2 hours to obtain the first extract of Fructus Echinacea and residual medicinal residues; add 5 kg of ethanol with a mass concentration of 90% to the residual medicinal residues, and continue to reflux extracting for 1.5 hours to obtain the second extract of ramie extract; combining the first extract and the second extract and recovering the ethanol therein until the concentration of total flavonoids in the obtained extract reaches 6 mg / mL; Use hydrochloric acid to adjust the pH value of the extract of Prunus edulis to 4.5, and then filter it with ab...
Embodiment 2
[0072] Embodiment 2 animal acute toxicity test
[0073] Test drug: the medicinal suspension prepared by dissolving the extract of Fructus Radix Puerariae prepared in Example 1 in water;
[0074] Experimental animals: healthy female Kunming mice provided by the Animal Experiment Center of Jilin University School of Basic Medicine, weighing 19g-22g;
[0075] 2.1 One-time gavage administration of LD 50 determination
[0076] Take 20 female healthy mice, and after fasting for 16 hours, give 1mL / one of the drug suspension with a mass concentration of 47.5% orally, and observe the state of the mice after administration. The results show that the activity status of the mice is normal, and the vital signs Normal, no one died after 7 days of observation, so it is necessary to measure the maximum dosage;
[0077] 2.2 Determination of the maximum dosage of intragastric administration
[0078] Take 30 healthy female mice, and give them a drug suspension with a mass concentration of 47...
Embodiment 3
[0082] The influence of embodiment 3 medicines on chronic glomerulonephritis
[0083] Medicine: the medicinal suspension prepared by dissolving the extract of Fructus Radix Puerariae prepared in Example 1 in water;
[0084] Animals: Wistar rats purchased from the Animal Experiment Center of Bethune Medical College of Jilin University, male and female, 180g-210g;
[0085] Reagent: Freund's complete adjuvant produced by Beijing Dingguo Biotechnology Co., Ltd.;
[0086] Instrument: GF-D800 biochemical analyzer produced by Shandong Gaomi Rainbow Analytical Instrument Co., Ltd.; YDA-IV blood viscometer produced by Beijing Hongrunda Technology Development Co., Ltd.;
[0087] Data processing: Statistical methods Data are expressed as x±s, and t test is used for comparison between groups.
[0088] 3.1 The impact on chronic glomerulonephritis
[0089] 3.1.1 Preparation of Renal Cortex Freund's Complete Adjuvant Suspension
[0090] Take 20-month-old healthy Wistar rats, kill them by...
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