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OBJECTIVE：To establish fingerprint of Paliurus ramosissimus total triterpenes ，and to conduct cluster analysis and principal component analysis ，and to determine the content of the main component paliurusene. METHODS ：HPLC method was adopted. The determination was performed on Agilent PheHex column with mobile phase consisted of methanol- 0.05％ phosphoric acid solution （gradient eluetion ） at the flow rate of 1 mL/min. The detection wavelength was set at 320 nm，and column temperature was 30 ℃. The sample size was 5 μL. Using paliurusene as reference，HPLC fingerprints of 10 batches of P. ramosissimus total triterpenes were drawn. Similarity evaluation was performed by using TCM Chromatographic Fingerprint Similarity Evaluation System （2012 edition），and the common peaks were confirmed. Cluster analysis and principle component analysis were performed by using SPSS 26.0 software. The content of paliurusene was determined by same HPLC method. RESULTS：There were totally 6 common peaks in HPLC fingerprint of 10 batches of P. ramosissimus total triterpenes. The similarity was more than 0.990；one of six common peaks was identified as paliurusene. The results of cluster analysis showed that 10 batches of samples could be clustered into 4 categories，including S 1，S2，S3-S6 and S 7-S10. The results of principal component analysis showed that the accumulative variance contribution rate of primary 2 principal components was 99.430％. Comprehensive score ranking was S 1＞S9＞S8＞S7＞S10＞S2＞S3＞S5＞S6＞S4. The linear range of paliurusene concentration was 33.7-844.0 μg/mL（r＝0.999 9）. RSDs of precision ，reproducibility and stability （24 h）tests were all lower than 2％. Average recovery was 99.75％（RSD＝1.13％，n＝6）. The average contents of paliurusene in 10 batches of P. ramosissimus total triterpenes was 0.576％-0.712％. CONCLUSIONS ：Established HPLC fingerprint and content d etermination method are reliable and stable ， and can be used for the quality control of P. ramosissimus .
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OBJECTIVE： To study the anti-inflammatory and detumescent pharmacodynamic material basis of Jingyaokang capsule， and to provide reference for secondary development， the establishment of quality control method and technological upgrading of the preparations. METHODS： The constituents of Jingyaokang capsule were extracted and separated with different solvents and macroporous adsorption resin to obtain constituent A （overall enrichment part）， constituent B （chloroform extraction part）， constituent C （water-course part） and constituent D （elution part of 60％ ethanol）. Using dexamethasone acetate as positive control， the anti-inflammatory and detumescent effects of Jingyaokang capsule and different extraction parts （constituents A， B， C， D） were investigated by mice ear edema and rat paw edema tests to screen the active fraction. UPLC-Q-TOF-MS method was used to analyze active constituent， identify compounds and attribute medicinal material. RESULTS： Anti-inflammatory and detumescent effects of constituent B （chloroform extraction part）+constituent D （elution part of 60％ ethanol） were similar to those of Jingyaokang capsule in rats or mice， indicating both had synergistic anti-inflammatory and detumescent effects and were active constituents of Jingyaokang capsule. UPLC-Q-TOF-MS detection and identification showed that constituent B contained 13 compounds as strychnine， phellodendrine， periplogenin， tetraketone alcohol， 11-carbonyl-β-mastic acid， attributing to Strychnos nux-vomica， Stephania tetrandra， Periploca sepium， Lycopodium japonicum， Boswellia carterii， etc. Constituent D contained 7 compounds as adenine， hydroxysafflower yellow A， phellodendrine， neoeriocitrin， zingibroside R1， attributing to rainworm， Carthamus tinctorius， Stephania tetrandra， Davallia mariesii， Achyranthes bidentata， etc. CONCLUSIONS： Jingyaokang capsule shows the significant anti-inflammation and detumescent effects. The chloroform extraction part is synergistic with 60％ ethanol elution part， which are the active constituents of anti-inflammation and detumescence，mainly including alkaloids， flavonoids and boswellic acids.
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OBJECTIVE： To establish the method for the rapidly non-destructive quality control of Liuwei dihuang capsule. METHODS： AOTF-NIR spectrometry was adopted. Taking 80 batches of Liuwei dihuang capsule produced by a manufacturer in recent three years as samples， HPLC chromatogram was adopted to determine the contents of loganin， morroniside， paeonol， paeoniflorin and ursolic acid； the content of water was determined according to general principles stated in 2015 edition of Chinese Pharmacopeia （part Ⅰ）. Taking 70 batches of samples as correction set， the partial least square method and the cross-validation algorithm were used to establish the NIR quantitative model of 6 indexes in Liuwei dihuang capsules with the Unscrambler quantitative analysis software. Taking residual 10 batches of samples as validation set， external validation was conducted for the model. RESULTS： The correlation coefficients （R2） of internal and external validation of loganin， morroniside， paeonol， paeoniflorin， the content of water quantitative model were all greater than 0.9； the correction of standand deviation （RMSEC） were 0.372 8， 0.025 4， 0.263 3， 0.288 5， 0.186 7 and 0.037 7； the prediction of standard deviation （RMSEP） were 0.462 2， 0.077 5， 0.472 1， 0.634 9， 0.293 4 and 0.206 9； the external verification showed that mean deviations of preclicted value to actual value were 6.04％， 6.05％， 5.87％， 6.97％， 5.62％ and 4.83％， with the mean deviation less than 10％.CONCLUSIONS：The established method can achieve rapidly non-destructive analysis Liuwei dihuang capsule.
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OBJECTIVE:To establish HPLC fingerprint of Zhenqi fuzheng granules. METHODS:HPLC-ELSD method was ad-opted. The determination was performed on Agilent Zorbax Eclipse XDB-C18 column with mobile phase consisted of acetonitrile-wa-ter(gradient elution)at the flow rate of 1.0 mL/min with column temperature of 40 ℃. The detector evaporation temperature was 50℃,and sample size was 10μL. Using specnuezhenide as reference,HPLC chromatograms of 7 batches of Zhenqi fuzheng gran-ules were determined. The identification and similarity evaluation of common peaks were conducted by using the TCM Chromato-graphic Fingerprint Similarity Evaluation System(2004 A edition). RESULTS:There were 13 common peaks in HPLC chromato-grams of 7 batches of samples. After validated,the similarity of 3 batches of samples in HPLC chromatograms of 7 batches of sam-ples were higher than 0.9,which were in good agreement with control fingerprints. The similarity of 4 batches of samples were <0.9,which were poorly same to control fingerprint. CONCLUSIONS:Established fingerprint can provide reference for quality evalu-ation of Zhenqi fuzheng granules.
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The student majoring in Medical Biological Technique will be mainly engaged in the practical work of biological technique industry after graduation in the future.In order to bind the theories on the practical biological techniques in designs of contents and roundly improve students' practical ability in classes as well as enriching the communication among students,our college offers an immunologic techniques experiment classes with 36 hours per semester,which has also undergone a reasonable project teaching innovation. This proved to result in a satisfactory outcome in improving the students' practical a
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OBJECTIVE:To study the antiasthmatic effect of Mabuterol in guinea pigs.METHODS:Severe dyspnea was induced by2%acetylcholine and0.1%histamine solution in conscious guinea pigs.RESULTS:Experiment showed that Mabuterol could significantly inhibit the experimental asthma induced by mixture of2%acetylcholine and0.1%histamine solution in conscious guinea pigs.It also significantly prolonged the latency of induced asthma and decreased the number of guinea pigs on twitches induced by asthma.Bronchodilating effect of Mabuterol was in a dose-dependent manner.The ED 50 of Mabuterol was0.2mg/kg and95%confidence limit was0.08～0.49mg/kg.CONCLUSION:In comparison with salbutanmol,Mabuterol is longer in duration and more potent in action of bronchodilatation.