2.Dynamic monitoring risk of anti-hepatoma new drug development.
Jing ZHANG ; Wei FAN ; Hong-Fa LI ; Shu-Li MAN ; Zhen LIU ; Wen-Yuan GAO
China Journal of Chinese Materia Medica 2014;39(20):4050-4053
Risk monitoring of new Chinese patent anti-hepatoma drugs is tracking recognized risks and residual risks, identifying emerging risk and ensure the implementation of the plan, estimating the process of reducing effectiveness. The paper is mainly through understanding the status of Chinese patent anti-hepatoma drugs, the content, characteristic and analysis method of dynamic risk monitoring, and then select the risk control indicators, collect risk information. Finally, puts forward the thought of anti-hepatoma drugs listed evaluation in our country, and try to establish the model of dynamic risk management of anti-hepatoma drugs.
Antineoplastic Agents, Phytogenic
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adverse effects
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economics
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therapeutic use
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Carcinoma, Hepatocellular
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drug therapy
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Drug Discovery
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economics
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legislation & jurisprudence
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organization & administration
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Drug and Narcotic Control
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economics
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legislation & jurisprudence
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organization & administration
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Drugs, Chinese Herbal
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adverse effects
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economics
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therapeutic use
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Humans
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Liver Neoplasms
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drug therapy
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Product Surveillance, Postmarketing
3.Clinical observation on treatment of Russula subnigricans poisoning patients by Ganoderma lucidum decoction.
Gui-lin XIAO ; Fa-yi LIU ; Zuo-hong CHEN
Chinese Journal of Integrated Traditional and Western Medicine 2003;23(4):278-280
OBJECTIVETo observe the effect of Ganoderma lucidum decoction in treating Russula subnigricans poisoning (RSP) patients.
METHODSThe 14 patients of RSP in the treated group were treated with GLD (GLD, one dose was prepared by 100 g of Ganoderma lucidum decocted with water to 600 ml), on the base of conventional treatment, and 11 patients received conventional therapy in the previous year were taken as control. The clinical efficacy and parameters in them were compared, including the urine N-acetyl-D-glucosaminidase (NAG, which reflects the injury of kidney), the red blood cell and protein in urine, the alanine transaminase (ALT, which reflects the injury of liver), and the aspartate aminotransferase (AST, which reflects the injury of heart).
RESULTSA better clinical cure-markedly improving rate was showed in the treated group as compared with the control group, P < 0.01. In the treated group, red blood cell in urine disappeared after 24 hrs treatment in the majority of patients, urinary protein reduced obviously and the other three parameters reached the peak at the 3rd day then lowered gradually. In the control group, all the parameters increased continuously. Comparison between the parameters at corresponding time in the two groups showed significant difference (P < 0.01), those in the treated group were markedly lower than those in the control group respectively.
CONCLUSIONGLD has good effect in treating RSP, could obviously lower the fatat rate of RSP.
Acetylglucosaminidase ; urine ; Adolescent ; Adult ; Aged ; Alanine Transaminase ; blood ; Aspartate Aminotransferases ; blood ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Mushroom Poisoning ; drug therapy ; Phytotherapy ; Reishi ; chemistry
4.Identification of different varieties of Rhei Radix et Rhizoma based on chemical analysis.
Jian-hua GE ; Xun-hong LIU ; Hu XU ; Dan-yang XU ; Fa-ping BAI
China Journal of Chinese Materia Medica 2015;40(12):2309-2313
A HPLC method was established to determine the contents of the five anthraquinones and rhaponticin in the different varieties of Rhei Radix et Rhizoma. The difference existed in different varieties. The results showed that rhein and rhaponticin were marker substances which could be used to distinguish palm leaf groups rhubarb and wave leaf groups rhubarb. Authentic rhubarb didn't contain rhaponticin. Falsify rhubarb contains trace amounts of rhein. Rheum tanguticum contains abundant rhein. The ratio value of the content of rhein to chrysophanol could be used to distinguish R. tanguticum from the other two authentic varieties (R. palmatum and R. officinale). The content of rhaponticin varied largely in different varieties of wave leaf groups rhubarb.
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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Quality Control
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Rheum
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chemistry
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classification
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Rhizome
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chemistry
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classification
5.Quality standard study on Tibetan medicine Gentianae Szechenyii Flos.
Liu-liu ZONG ; Gui-fa LUO ; Li-hong WU ; Zheng-tao WANG ; Hai-qing LIU ; Dan-dan ZHAO
China Journal of Chinese Materia Medica 2015;40(10):1872-1876
In order to efficiently control the quality of the Tibetan medicine Gentianae Szechenyii Flos, the quality standard was established in this study. The tests of water content, total ash and ethanol-soluble extractives of the crude drugs were carried out based on the methods recorded in appendix of Chinese Pharmacopeia (2010 edition, volume 1). The TLC method was established by using reference drug and gentiournoside A as reference substance, and a mixture of ethyl acetate-methanol-water-formic acid (7: 1.5: 1: 0.2) as the developing solvent system on silica gel G TLC plate. The content of gentiournoside A was assayed by HPLC on a Ultimate XB-C18 (4.6 mm x 250 mm, 5 μm) column, using methanol-water (0.02% phosphoric acid) (52:48) as the mobile phase at a flow rate of 1.0 mL x min(-1). The column temperature is 25 degrees C and the detection wavelength is at 240 nm. As a result, gentiournoside A and the other constituents were separated and presented the same fluorescence light comparing with the reference substance on TLC detected under the UV light(366 nm). The methodology validation for the assay of gentiournoside A showed that it was in a good linear correlation in the range of 10.01-400.32 mg x L(-1) with the regression equation of Y = 1 539.5X - 33.339 (r = 0.999 7), and the average recovery was 99.68% (RSD 1.92%). The mass fractions of gentiournoside A, water content, ethanol-soluble extractives of 19 batches samples were varied in the ranges of 14.48-31.51 mg x g(-1), 11.25% -12.74% and 24.21% - 31.60%, respectively, and total ash was 4.64% - 6.12% detected from 10 batches samples. The recommended standards of quantitative indexes are that the mass fractions of gentiournoside A and extractives are not less than 15.0 mg x g(-1) (1.5%) and 21.0%, respectively; the water and total ash are not more than 13.0% and 6.0%, respectively.
Chromatography, High Pressure Liquid
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Chromatography, Thin Layer
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Drugs, Chinese Herbal
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chemistry
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standards
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Flowers
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chemistry
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Gentiana
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chemistry
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Medicine, Tibetan Traditional
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Quality Control
6.Quality standard study on Tibetan medicine Gentianae Urnulae Herba.
Liu-liu ZONG ; Gui-fa LUO ; Li-hong WU ; Zheng-tao WANG ; Gui-xin CHOU ; Hai-qing LIU
China Journal of Chinese Materia Medica 2015;40(19):3878-3882
Gentianae Urnulae Herba, dried whole herb of Gentiana urnula,is a commonly used Tibetan medicine. However, only the character identification is used as quality control standard officially at present. As a part of project for the Chinese Pharmacopoeia (2015 edition), the quality standard of this species was established in this study. The tests of water content, total ash, acid-insoluble ash and ethanol-soluble extractives of the crude drugs were carried out following the methods recorded in appendix of Chinese Pharmacopeia (2010 edition, volume 1). The TLC identification method was established by using gentiournoside A as reference substance, and a mixture of ethyl acetate-methanol-water-formic acid(7:1. 5:1: 0. 2) as the developing solvent system on silica gel G TLC plate. The content of gentiournoside A was assayed by HPLC on an Agilent Zorbax SB-C18 (4.6 mm x 250 mm,5 μm) column, using acetonitrile-water (0.1% phosphoric acid) (26:74) as the mobile phase at a flow rate of 1.0 mL x min(-1). The column temperature is at 30 degrees C and the detection wavelength is at 240 nm. As a result, gentiournoside A and the other constituents were separated and presented the same fluorescence light comparing with the reference substance on TLC detected under the UV light(366 nm). The methodology validation for the assay of gentiournoside A showed that it was in a good linear correlation in the range of 0.009 95-0.398 g x L(-1) with the regression equation of Y = 1 467.1X +41.407(r = 0.999 9), and the average recovery was 98. 3% (RSD 2.2%). The mass fractions of gentiournoside A, water content, ethanol-soluble extractives of 15 batches samples were varied in the ranges of 0.175% -1.83%, 8.60% - 9.93% and 29.2% - 35.2%, respectively. Total ash and acid-insoluble ash were 10.2% - 17.2% and 5.26% - 10.8% detected from 10 batches samples. The recommended standards of quantitative indexes are that the mass fractions of gentiournoside A and extractives are not less than 0.80% and 26.0%, respectively; the water, total ash and acid-insoluble ash are not more than 12.0%, 15.0% and 8.0%, respectively.
China
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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standards
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Humans
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Medicine, Tibetan Traditional
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standards
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Plants, Medicinal
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chemistry
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Quality Control
7.The p53-p21(waf1) pathway and centrosome amplification in oral squamous cell carcinomas.
Yang CAI ; Yong-fa LIU ; Hong YANG ; Hong LU
Chinese Journal of Stomatology 2009;44(6):332-335
OBJECTIVETo elucidate the possible role of p53-p21(waf1) pathway for centrosome amplification in oral squamous cell carcinoma (OSCC).
METHODSFormalin-fixed, paraffin-embedded tissues of 8 cases of normal oral epithelium tissues and 27 cases of OSCC tissues were examined for the expression of p21(waf1) and mutated p53 proteins by flow cytometry and immunohistochemistry, and centrosome status was investigated by indirect immunofluorescence double staining with antibodies to centrosome protein gamma-tubulin and cytokeratin. The correlation between p21(waf1), p53 and centrosome amplification in OSCC was statistically analyzed by SPSS 12.0.
RESULTSAll normal oral epithelium tissues showed normal centrosomes (1-2 centrosomes per cell)in epithelium cells, while 21 out of 27 cases (78%) of OSCC showed the evidence of centrosome amplification characterized by supernumerary centrosomes ( >2 centrosomes per cell) in a fraction of tumor cells. The quantity of p21(waf1) protein was lower in OSCC with centrosome amplification [(0.878 +/- 0.081)] than that in OSCC without centrosome amplification [(0.952 +/- 0.018), t = 3.838, P < 0.01], and negative correlations were found between the quantity of p21(waf1) protein and the degree of centrosome amplification (r = -0.472, P < 0.05), as well as the positive staining of p53 (r = -0.491, P < 0.01).
CONCLUSIONSp53-p21(waf1) pathway might involve in centrosome duplication cycle in OSCC. Down-regulated p21(waf1) protein, via p53 transactivation-dependent mechanism, was likely a contributing factor towards centrosome amplification in OSCC.
Carcinoma, Squamous Cell ; metabolism ; pathology ; Centrosome ; metabolism ; Cyclin-Dependent Kinase Inhibitor p21 ; genetics ; metabolism ; Humans ; Mouth Neoplasms ; metabolism ; pathology ; Tumor Suppressor Protein p53 ; genetics ; metabolism
8.Sequence structure and phylogenetic analysis of the chloroplast genomes of Alangium chinense (Lour.) Harms and its different subspecies
Xiao-ying YANG ; Chang LIU ; Xian-fa ZENG ; Xiong-wei LIU ; Jie-hong ZHAO ; Ting-ting FENG ; Ying ZHOU
Acta Pharmaceutica Sinica 2022;57(10):3229-3239
italic>Alangium chinense is a commonly used medicinal plant of Alangiaceae
9.Role of catecholamine hormone in heroin addicts.
Fa-Rong YU ; Xiu-Zhen LIAN ; Hong-Mei ZHANG ; Xiao-Xi NING ; Xiao-Wei LIU ; Ming-Ren XIE
Chinese Journal of Applied Physiology 2014;30(2):124-131
OBJECTIVETo investigate the effects of catecholamine hormone on the blood and brain of heroin addicts.
METHODSRats were divided into three groups and treated with the glucose (control group), the heroin (im) (heroin group), and the combination of the intramuscular injection of reserpine and heroin (reserpine group). Changes in the levels of the dopamine (DA), cAMP, and cGMP were detected by the radioimmunoassay (RIA) method in the blood and brain tissue.
RESULTSNo significant withdrawal symptoms were observed in the reserpine group. Compared with the control and heroin groups, the blood cAMP levels were increased by 35.36% and 15.53% in the reserpine group, respectively; the cAMP levels in the midbrain ventral tegmental area (VTA), prefrontal cortex (PFC), and hippocampus (Hipp) were increased by 24.08% & 8.53%, 15.66% & 8.13%, and 21.95% & 8.40%, respectively. While compared to the control and heroin groups, the DA levels of the PFC, Hipp, striatum, and nucleus accumbens (NAc) were significantly reduced in the reserpine group, decreasing by 74.09% & 82.86%, 81.06% & 82.23%, 91.62% & 86.55% and 84.35% & 90.63%, respectively. The concentrations of cGMP of the brain tissues in the reserpine group were lower than those in the control group. In addition, the neural electrophysiological testing showed that the electroencephalogram (EEG), electrocardiogram (ECG), and muscle spindle discharge diagram of rats in both the reserpine and heroin groups were apparently changed.
CONCLUSIONCatecholamine hormone plays an important role in heroin addiction.
Animals ; Brain ; drug effects ; metabolism ; Catecholamines ; physiology ; Cyclic AMP ; blood ; metabolism ; Cyclic GMP ; blood ; metabolism ; Dopamine ; blood ; metabolism ; Heroin Dependence ; metabolism ; physiopathology ; Male ; Rats ; Rats, Wistar
10.Use of fluorometry for determination of skim milk powder adulteration in fresh milk.
Rong-fa GUAN ; Dong-hong LIU ; Xing-qian YE ; Kai YANG
Journal of Zhejiang University. Science. B 2005;6(11):1101-1106
A FAST (fluorescence of advanced Maillard products and Soluble Tryptophan) method for identification of reconstituted milk made from skim milk powder in the fresh milk was developed. Considering milk and skim milk powders variations from different seasons and countries, milk was collected from different dairy farms in different seasons and skim milk powders were collected from different countries to measure the Tryptophan (Trp), advanced Maillard products (AMP) fluorescence values. The results showed that there were differences (P<0.01) between raw and reconstituted milk. The plot of values in each mixed level of raw and reconstituted milk had a correlation coefficient >0.97. The FAST method is a simple, rapid, low-cost and sensitive method enabling the detection of 5% reconstituted milk in fresh milk. The measurement of the Trp, AMP fluorescence values and calculation of the FAST index is a suitable method for large-scale monitoring of fresh milk samples.
Animals
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Cattle
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Food Analysis
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methods
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Food Contamination
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prevention & control
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Glycation End Products, Advanced
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analysis
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Maillard Reaction
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Milk
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chemistry
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classification
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Powders
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Spectrometry, Fluorescence
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methods
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Tryptophan
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analysis