1.Advance and prospect in studies on anaphylactoid reaction of traditional Chinese medicine injections.
China Journal of Chinese Materia Medica 2015;40(14):2765-2773
Because of the rapid action and high bioavailability, traditional Chinese medicine injections (TCMIs) had been widely used in clinical critical field. In recent years, with the increasing reports of clinical adverse reaction, more and more attention was paid to them, and acute allergic reaction was the main adverse reaction. Acute allergic reaction included type-I anaphylaxis reaction and anaphylactoid reaction, the latter had been found in a variety of TCMIs and accounted for 77% of adverse reaction. But the mechanism of anaphylactoid reaction was not completely understood, the standard animal model for TCMIs was not established, and the technical guidance for anaphylactoid reaction was not formulated. Thus the three aspects included mechanism, evaluation index and evaluation methods of TCMIs for anaphylactoid were reviewed. Five ways including direct stimulating pathway, complement pathway, coagulation pathway, kallikrein-kinin pathway and acute allergic pathway were the main mechanism of anaphylactoid reaction; whole animal model and cell model were the main evaluation methods; the occurrence index and effect index were reviewed for the evaluation index analysis.
Anaphylaxis
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chemically induced
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Animals
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Drug Hypersensitivity
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diagnosis
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etiology
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Humans
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Injections
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Medicine, Chinese Traditional
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adverse effects
3.Splitted fractions and unoverlapping analysis of chemical constituents of Poria cocos.
Zhe LIN ; Yu-Bin XU ; Xiao-Ku RAN ; De-Qiang DOU
China Journal of Chinese Materia Medica 2013;38(24):4340-4346
With the combined applications of steam distillation, water extraction and alcohol precipitation, liquid-liquid extraction and column chromatography over macroporous resin, a splitted-fractions method of the chemical constituents of Poria cocos was established. The unoverlapping property of the fractions of P. cocos was qualitatively analysed by using principal component analysis and cluster analysis. With angle cosine, squared euclidean distance and the overlapping analysis of peak area of crude herbs, the unoverlapping property of the fractions of P. cocos was half-quantitatively analysed. The chemical components of P. cocos was divided into the fractions of polysaccharide, petroleum ether, ethyl acetate, alcohol eluate from macroporous resin and water eluate from macroporous resin. Non similarity degree among each chemical fraction was above 80% and main chemical components were identified. The established method for splitting fractions of P. cocos has good stability and repeatability and all chemical components in P. cocos could be completely divided into six fractions. It is the first time that the author half-quantitatively analyse the unoverlapping property of the chemical fractions of P. cocos.
Chromatography, High Pressure Liquid
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Cluster Analysis
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Medicine, Chinese Traditional
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Poria
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chemistry
4.Comparison of the chemical constituents and pharmacological action of Piper nigrum Linn. with P. methysticum forst.
Kun WEI ; De-qiang DOU ; Yu-ping PEI ; Ying-jie CHEN
China Journal of Chinese Materia Medica 2002;27(5):328-333
Alkaloids
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Animals
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Anti-Inflammatory Agents, Non-Steroidal
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pharmacology
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Anticonvulsants
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pharmacology
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Benzodioxoles
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Oils, Volatile
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isolation & purification
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pharmacology
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Piper
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chemistry
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Piper nigrum
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chemistry
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Piperidines
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isolation & purification
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pharmacology
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Plants, Medicinal
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chemistry
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Polyunsaturated Alkamides
5.Triterpenes constituents from male flowers of Eucommia ulmoides.
Yan-Xia DING ; Teng-Yu WANG ; Yao-Wen ZHANG ; Yu-Mei HUANG ; Lin MA ; Dong-dong LI ; De-Qiang DOU ; Qin LI
China Journal of Chinese Materia Medica 2014;39(21):4225-4229
Nine triterpenes compounds were isolated from the male flowers of Eucommia ulmoides by recrystallization and chromatographic techniques over silica gel, Sephadex LH-20, and RP-18 gel. Their chemical structures were identified on the basis of spectral analysis and as 3-oxo-12-en-ursane-28-O-α-L-arabinofuranosyl (1 --> 6) -β-D-glucopyranoside (1), 2α, 3β-dihydroxyurs-12-en-28-oic acid(28 --> 1) -β-D-glucopyranosyl ester (2), ursolic acid (3), α-amyrin (4), uvaol (5), ursolic acid acetate (6), 3-O-acetate oleanoic acid (7), betulinic acid (8), and betulinol (9). Compound 1 was a new compound, and compounds 2, 4-7 were isolated from the Eucommiu genus for the first time. Cytotoxic activity was tested for all the compounds against K562 and HepG2 cells. The results showed that only compound 3, exhibited cytotoxic activity.
Antineoplastic Agents, Phytogenic
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pharmacology
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Eucommiaceae
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chemistry
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Hep G2 Cells
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Humans
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K562 Cells
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Triterpenes
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analysis
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pharmacology
6.The isolation and identification of a new alpha-pyrone from Opuntia dillenii.
Ying-kun QIU ; De-qiang DOU ; Yu-ping PEI ; Masayuki YOSHIKAWA ; Hisashi MATSUDA ; Ying-jie CHEN
Acta Pharmaceutica Sinica 2003;38(7):523-525
AIMTo study the chemical composition of Opuntia dillenii Haw.
METHODSMany kinds of chromatography methods were used to separate the chemical constituents. Their structures were determined by NMR and MS spectral analysis.
RESULTSA new compound, together with five known compounds, were isolated from the 80% ethanolic extract of the stems.
CONCLUSIONThe new compound was identified as 4-ethoxyl-6-hydroxymethyl-alpha-pyrone. Compounds 1, 3, 4 and 5 were obtained for the first time from the genus of Opuntia, and they were: 3-O-methyl isorhamnein, 1-heptanecanol, vanillic acid, isorhamnetin-3-O-beta-D-rutinoside. Ruin was isolated from this plant for the first time.
Molecular Structure ; Opuntia ; chemistry ; Plant Stems ; chemistry ; Plants, Medicinal ; chemistry ; Pyrones ; chemistry ; isolation & purification ; Rutin ; chemistry ; isolation & purification ; Vanillic Acid ; chemistry ; isolation & purification
7.Study on the chemical constituents of the roots of commercial ginseng.
De-qiang DOU ; Jie REN ; Ying CHEN ; Yu-ping PEI ; Ying-jie CHEN
China Journal of Chinese Materia Medica 2003;28(6):522-524
OBJECTIVETo isolate and elucidate the constituents from the roots of Commercial Ginseng.
METHODColumn chromatography and HPLC were used to isolate chemical constituents. Physico-chemical characters and spectr-oscopic analysis were employed for structural identification.
RESULTSixteen compounds were identified as: notoginsenoside-R2(1), ginsenoside-Rg2(2), 20 (R)-Rg2 (3), ginsenoside-Rg1 (4), -Rf(5), -Re(6), -Rd(7), -Rc(8), -Rb1(9), -Rb2(10), -Rb3(11), -Ra3(12), -Ra2(13), -Ra1 (14), notoginsenoside-R4(15) and ginsenoside -Ro(16).
CONCLUSIONCompound 1 was obtained from the plant for the first time.
Ginsenosides ; chemistry ; isolation & purification ; Panax ; chemistry ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry
8.Study on chemical constituents from Opuntia dillenii.
Ying-kun QIU ; De-qiang DOU ; Yu-ping PEI ; Masayuki YOSHIKAWA ; Hisashi MATSUDA ; Ying-jie CHEN
China Journal of Chinese Materia Medica 2005;30(23):1824-1826
OBJECTIVETo study the chemical composition of Opuntia dillenii.
METHODMany kinds of chromatography methods were used in the isolation procedure, while the structures of isolated compounds were determined on the aids of NMR and MS spectral analysis.
RESULTA new compound, together with five known compounds, was isolated form the 80% ethanolic extract of its stems.
CONCLUSIONThe new compound was characterized as opuntioside. Four compounds were obtained for the first from the genus Opuntia, and they were daucosterol, p-hydroxybenzoicacid, L-(-)-malic acid, (E)-ferulic acid. Opuntiol was also separated for the first from the plant.
Coumaric Acids ; chemistry ; isolation & purification ; Molecular Structure ; Monosaccharides ; chemistry ; isolation & purification ; Opuntia ; chemistry ; Plant Stems ; chemistry ; Plants, Medicinal ; chemistry ; Sitosterols ; chemistry ; isolation & purification
9.Ginsenoside-Ro enhances cell proliferation and modulates Th1/Th2 cytokines production in murine splenocytes.
Jun-li YU ; De-qiang DOU ; Xiao-hong CHEN ; Hong-zhen YANG ; Xiao-yan HU ; Gui-fang CHENG
Acta Pharmaceutica Sinica 2005;40(4):332-336
AIMTo study the effects of ginsenoside-Ro on cell proliferation and cytokine production in murine splenocytes.
METHODSThe effect of ginsenoside-Ro on murine splenocytes proliferation was studied using [3H] thymidine incorporation assay. Effects of ginsenoside-Ro on the production of cytokines interleukin-2 (IL-2), interferon-gamma (IFN-gamma) and interleukin-4 (IL-4) from murine splenocytes were detected by ELISA method. Effects of ginsenoside-Ro on mRNA level of Th1 cytokine IFN-gamma and Th2 cytokine IL-4 were evaluated by reverse transcription polymerase chain reaction (RT-PCR) analysis.
RESULTSGinsenoside-Ro showed no mitogenic effect on unstimulated murine splenocytes. It enhanced the proliferation of Con A-induced murine splenocytes and the production of IL-2 at concentrations of 1-10 micromol x L(-1). Moreover, ginsenoside-Ro increased the production and expression of Th2 cytokine IL-4 and decreased the production and expression of Th1 cytokine IFN-gamma in Con A-induced murine splenocytes at concentrations of 2-10 micromol x L(-1).
CONCLUSIONGinsenoside-Ro showed immunomodulatory effects by regulating the production and expression of Th1/Th2 cytokines in murine splenocytes.
Animals ; Cell Proliferation ; drug effects ; Ginsenosides ; isolation & purification ; pharmacology ; Interferon-gamma ; biosynthesis ; genetics ; Interleukin-2 ; metabolism ; Interleukin-4 ; biosynthesis ; genetics ; Male ; Mice ; Mice, Inbred BALB C ; Panax ; chemistry ; Plants, Medicinal ; chemistry ; RNA, Messenger ; biosynthesis ; genetics ; Spleen ; cytology ; metabolism
10.A retrospective cohort study on reduction of AIDS mortality among patients enrolled in national-free antiretroviral treatment programme in two cities in China.
Zhi-hui DOU ; Yan ZHAO ; Yun HE ; Wen-sheng HE ; Guo-ping JI ; Chen XU ; Ye MA ; De-cai ZHAO ; Lan YU ; Fu-jie ZHANG
Chinese Journal of Preventive Medicine 2009;43(12):1091-1095
OBJECTIVETo determine the effect of national free highly active antiretroviral treatment (HAART) on reduction of mortality and relevant risk factors among adult Acquired immunodeficiency syndrome (AIDS) patients.
METHODSA retrospective cohort study was conducted and all AIDS patients diagnosed before Aug. 30th, 2008 in Zhumadian, Henan province, and Fuyang, Anhui province were enrolled in this study, where HAART initiated in early time. The data and information were collected such as AIDS progress, diagnosis, treatment, death and et al.
RESULTSAmong 10,394 AIDS patients, the mean age was (41.7 +/- 9.3) year-old, 50.3% (5233/10,394) were male, 85.0% (8808/10,394) were married, 95.1% (9880/10,394) were farmers, and 81.2% (8438/10,394) were former plasma donors (FPDs). The coverage of HAART increased from 5.2% in 2002 to 66.5% in 2008. Conversely, the overall mortality declined from 35.4/100 person-years in 2002 to 5.9/100 person-years in 2008. In a multivariate Cox proportional hazards analysis, the greatest risk factor for mortality was non-HAART, with a hazard ratio (HR) 4.3 (95%CI: 4.0 - 4.7). Among treated patients, compared with higher CD(4)(+) T cell counts (> 200 cells/microl), those initiating therapy with lower CD(4)(+) T cell counts, were at greater risk to death (< 50 cells/microl, HR = 7.9; 50 - 199 cells/microl, HR = 2.8). Number of opportunistic infections (OIs) was risk to mortality (HR = 2.1). In addition, other risk factors included male, age (>or= 50 years old), and other infection way except FPDs (HR were 1.4, 1.6 and 1.8).
CONCLUSIONThe national free treatment program has significantly reduced the AIDS mortality rate among HIV-infected FPDs through the use of generic antiretroviral drugs in rural clinical settings. The effective reduction of AIDS mortality could be realized through increased coverage of therapy.
Acquired Immunodeficiency Syndrome ; drug therapy ; economics ; mortality ; Adult ; Anti-HIV Agents ; economics ; therapeutic use ; Antiretroviral Therapy, Highly Active ; economics ; utilization ; China ; Cohort Studies ; Female ; Humans ; Inpatients ; Male ; Middle Aged ; Retrospective Studies ; Survival Rate