3.Study on HPLC fingerprint of Congrong Zonggan capsule.
Su-De YANG ; Wei WANG ; Jia-Chun LI ; Wei XIAO
China Journal of Chinese Materia Medica 2014;39(20):3955-3957
HPLC fingerprint of Congrong Zonggan capsule was established in order to provide basis for quality evaluation. With acteoside as the reference, HPLC was adopted for fingerprint analysis on Congrong Zonggan capsule. The chromatographic conditions wereas follows. Waters C18 column (4.6 mm x 150 mm, 5 μm) was used, with methylalcohol-0.1% formic acid as the mobile phase for gradient elution at the flow rate of 1.0 mL x min(-1). The detection wavelength was 330 nm, and the column temperature was 30 °C. This method was highly accurate and reproducible. All of the 13 components in tested samples reached the baseline resolved peak, and 15 batches of finished products showed the similarity of above 0.95. The method was accurate and feasible and could be used as a simple and effective method to evaluate the quality of the traditional Chinese medicines.
Capsules
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analysis
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Chromatography, High Pressure Liquid
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methods
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Drugs, Chinese Herbal
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analysis
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Plants, Medicinal
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chemistry
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Quality Control
4.The Effects of Spirulina on Intestinal Microflora of Diarrhea Model Mice
Jing LI ; Su-Ying WANG ; De-Qiang SHI ;
Microbiology 1992;0(02):-
The effects of Spirulina on intestinal microflora of diarrhea model mice were observed.Diarrhea model mice were geted by gastric perfusion ampicillin,then these mice were given different doses spirulina by gavage.Selective culture media were used to culture bifidobacteria,bacterium lacticum,enteric bacilli,enterococci,bacteroid,clostridium perfringens in feces at different times.In order to find the difference of collecting samples from feces and intestine,the quantity of detection flora in different segment of intestine were compared too.The result showed that in middle dose group and high dose group spirulina can regulate and improve intestinal flora of diarrhea model mice,and effectively shorten time from disturbance to balance.Fecal sample and intestinal contents sample both manifest a same trend,that is the quantity of bifidobacteria,bacterium lacticum in treatment recovery group is significantly higher than saline group,and enteric bacilli,enterococci,bacteroid,clostridium perfringens is significantly lower than saline group,but each index flora in intestinal contents sample has a significant difference in quantity.
5.Curative Effect of Low Melocular Heparin on Hypercoagulability of Kawasaki Disease
xiao-qing, LI ; nan, ZHOU ; yang, SONG ; de-cheng, SU
Journal of Applied Clinical Pediatrics 1986;0(01):-
Objective To observe the curative effect of low melocular weight heparin(LMWH) on the hypercoagulability in acute Kawasaki disease(KD).Methods Forty-six patients were diagnosed KD.Twenty-two cases out of all KD patients whose serum concentration of whether platelet(PLT) or fibrinogen(FIB) was significantly increased or who were found thrombus in their coronary artery by ultrasonic Doppler were treated with LMWH by subcutaneous injection once every day for 7-10 days.All the patients were divided into 2 groups accor-ding to whether using LMWH or not:H group(using LMWH) and NH group(no using LMWH).It were detected before and after treatment that included thrombin time(TT),activated partial thromboplastin time(APTT),international normalized ratio(INR),FIB,plasma mucosity,erythrocyte sedimentation rate(ESR),hematocrit(HCT) and situation of haemorrhage.Results 1.Before treatment,PLT and FIB of patients in H group were significantly higher than those in NH group(Pa
6.Projections from respiratory neurons of medulla oblongata to the motor neuron pool of phrenic nerve in rat:An HRP retrograde tracing study
Li-qing WANG ; De-qiang JING ; Su-zhen ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2004;10(10):590-591
ObjectiveTo observe the projections from respiratory neurons of medulla oblongata to the motor neuron pool of phrenic nerve in rat. MethodsBy using horseradish peroxidase (HRP) retrograde tracing technique after injecting HRP into phrenic nerve, retrograde labelled neurons were found in C3-C5 segment. Then, HRP was injected into the area where the phrenic motor neurons occupied, retrograde labelled neurons were found in medulla oblongata. ResultsPhrenic motor neurons locate in the C3-C5 segment ipsilaterally, occuping the intermediate portion of anterior horn and appearing typical motor neurons. Retrograde labelled neurons were found bilaterally in medulla oblongata, the neurons were located in nucleus retroambigualis (RNA), ventramedial area to nucleus retrofacialis (NRF). ConclusionThe phrenic motor neurons may receive direct projection of respiratory neuron in medulla oblongata, the projecting neurons are distributed in RNA and NRF area.
7.Interaction between CYP450 enzymes and metabolism of traditional Chinese medicine as well as enzyme activity assay.
Tu-lin LU ; Lian-lin SU ; De JI ; Wei GU ; Chun-qin MAO
China Journal of Chinese Materia Medica 2015;40(18):3524-3529
Drugs are exogenous compounds for human bodies, and will be metabolized by many enzymes after administration. CYP450 enzyme, as a major metabolic enzyme, is an important phase I drug metabolizing enzyme. In human bodies, about 75% of drug metabolism is conducted by CYP450 enzymes, and CYP450 enzymes is the key factor for drug interactions between traditional Chinese medicine( TCM) -TCM, TCM-medicine and other drug combination. In order to make clear the interaction between metabolic enzymes and TCM metabolism, we generally chose the enzymatic activity as an evaluation index. That is to say, the enhancement or reduction of CYP450 enzyme activity was used to infer the inducing or inhibitory effect of active ingredients and extracts of traditional Chinese medicine on enzymes. At present, the common method for measuring metabolic enzyme activity is Cocktail probe drugs, and it is the key to select the suitable probe substrates. This is of great significance for study drug's absorption, distribution, metabolism and excretion (ADME) process in organisms. The study focuses on the interaction between TCMs, active ingredients, herbal extracts, cocktail probe substrates as well as CYP450 enzymes, in order to guide future studies.
Animals
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Cytochrome P-450 Enzyme Inhibitors
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metabolism
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pharmacology
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Cytochrome P-450 Enzyme System
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chemistry
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metabolism
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Drugs, Chinese Herbal
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metabolism
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pharmacology
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Enzyme Activation
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drug effects
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Enzyme Activators
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metabolism
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pharmacology
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Humans
8.Research on ursolic acid production of Eriobotrya japonica cell suspension culture in WAVE bioreactor.
Hui-hua LI ; De-heng YAO ; Jian XU ; Wei WANG ; Qiang CHANG ; Ming-hua SU
China Journal of Chinese Materia Medica 2015;40(9):1693-1698
Through scale-up cultivation of Eriobotrya japonica suspension cells using WAVE bioreactor, the cell growth and ursolic acid (UA) accumulation were studied. The comparison test was carried out in the flask and the reactor with cell dry weight (DW) and UA content as evaluation indexes. The culture medium, DW and UA content were compared in 1 L and 5 L working volumes of bioreactor. The orthogonal test with main actors of inoculation amount, speed and angle of rotation was developed to find the optimal combination, in 1 L working volume of bioreactor. DW of the cell growth and the UA content in bioreactor were higher than those of the shaker by 105.5% and 27.65% respectively. In bioreactor, the dynamic changes of elements in the fluid culture, the dry weight of the cell growth and the UA content in 1 L and 5 L working volumes were similar. Inoculation of 80 g, rotational speed of 26 r · min(-1), and angle of 6 ° was the optimal combination, and the cell biomass of 19.01 g · L(-1) and the UA content of 27.750 mg · g(-1) were achieved after 100 h cultivation in 1 L working volume of bioreactor. WAVE Bioreactor is more suitable than flasks for the E. japonica cell suspension culture, and culture parameters can be achieved from 1 L to 5 L amplification.
Biomass
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Bioreactors
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Cell Culture Techniques
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instrumentation
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methods
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Culture Media
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chemistry
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metabolism
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Eriobotrya
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chemistry
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growth & development
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metabolism
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Triterpenes
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analysis
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metabolism
9.Effect of Peroxisome Proliferator-activated Receptor δ Activation on the Expression of Tenascin-C in Infarcted Myocardium
Dachun YANG ; Shuangtao MA ; Xiaohua SU ; Xiuchuan LI ; Jihong ZHANG ; Bing TANG ; De LI ; Yongjian YANG
Journal of China Medical University 2010;(9):730-732
Objective The purpose of the present study was to investigate the effect of peroxisome proliferator-activated receptors δ(PPAR δ)activation with dietary GW610742X on the expression of tenascin-C in the infarcted and remodeling myocardium.Methods Sixty male Wistar rats were divided into four groups,including control group,sham group,myocardial infarction(MI) group,and MI+GW610742X(GW)group.The left coronary artery was ligated to establish the MI model.PPAR δ activator GW610742X(100mg/kg/d)was administrated into the rats of GW group.At 3 months after procedure,the expression and distribution of tenascin-C in left ventricular free wall from each group were examined by Western blotting and immunofluorescence,respectively.Results After 3 months following procedure,there were obvious necrosis and fibrosis in left ventricular free wall from MI group.The expression of tenascin-C in MI and GW group was significantly higher than those in control and sham group(P 〈 0.01).Moreover,tenascin-C expression in GW group was remarkably decreased compared to MI group(P 〈 0.05).Additionally,tenascin-C expression in sham group was similar to that in control group(P 〉 0.05).Conclusion The tenascin-C is upregulated in infarcted myocardium during the remodeling process,which can be significantly attenuated by PPAR δ activation.
10.Intravenous drug abuse-related infective endocarditis: report of an autopsy case.
Wei-xiang ZHONG ; Dong-ping TIAN ; De-qing WU ; Min SU
Chinese Journal of Pathology 2010;39(6):421-422
Adult
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Aortic Valve
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microbiology
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pathology
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Autopsy
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Brain
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microbiology
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pathology
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Endocarditis, Bacterial
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complications
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microbiology
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pathology
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Female
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Heart Ventricles
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microbiology
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pathology
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Humans
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Mitral Valve
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pathology
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Sepsis
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complications
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microbiology
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pathology
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Substance Abuse, Intravenous
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complications
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microbiology
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pathology
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Young Adult