2.Signet-ring epithelioid gastrointestinal stromal tumor with rare D842Y mutation in exon 18 of PDGFRα: report of a case.
Qi SUN ; Hong-yan WU ; Xin-yan CHEN ; Jun YANG ; Qing YE ; Xiang-shan FAN
Chinese Journal of Pathology 2011;40(6):414-415
Antigens, CD34
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metabolism
;
Carcinoma, Signet Ring Cell
;
genetics
;
metabolism
;
pathology
;
surgery
;
Codon
;
Diagnosis, Differential
;
Exons
;
Female
;
Follow-Up Studies
;
Gastrectomy
;
methods
;
Gastrointestinal Neoplasms
;
genetics
;
metabolism
;
pathology
;
surgery
;
Gastrointestinal Stromal Tumors
;
genetics
;
metabolism
;
pathology
;
surgery
;
Humans
;
Melanoma
;
metabolism
;
pathology
;
Middle Aged
;
Neurilemmoma
;
metabolism
;
pathology
;
Point Mutation
;
Proto-Oncogene Proteins c-kit
;
metabolism
;
Receptor, Platelet-Derived Growth Factor alpha
;
genetics
;
metabolism
3.Medication rule for treatment of functional dyspepsia: an analysis of traditional Chinese medicine literature based on China National Knowledge Internet.
Hong-ling XIAO ; Yuan-jie WU ; Xiang WANG ; Yi-fang LI ; Zheng-qing FANG
China Journal of Chinese Materia Medica 2015;40(19):3866-3869
By retrieving the clinical research literature of treatment functional dyspepsia by traditional Chinese medicine (TCM) from January 2004 to December 2014 based on China National Knowledge Internet (CNKI), we would establish a TCM decoction database for treating functional dyspepsia in this study. One hundred and sixty-four literature were included, involving 159 prescriptions, 377 medicines, in a total of 1 990 herbs. These herbs can be divided into 18 categories according to the effectiveness; and qi-regulating herbs, blood circulation herbs, and antipyretic herbs ranked top three ones according to the frequency of usage of the herbs, whose medicine usage frequency accounted for 51.81%. Usage frequency of 16 herbs was over 30, and Atractylodes, Radix, Poriaranked top three according to the usage frequency. Medicinal properties were divided into 9 kinds according to the frequency statistics, and the top three were warm, flat, and cold. Taste frequency statistics were classifiedinto 9 kinds, and the top three were acrid, sweet, and bitter. In frequency statistics of the meridian tropism of herbs, it was classifiedinto 11 kinds, and the top three were spleen, stomach, lung. The analysis can provide a reference for treatment and study of TCM of functional dyspepsia.
China
;
Databases, Bibliographic
;
Drugs, Chinese Herbal
;
chemistry
;
therapeutic use
;
Dyspepsia
;
drug therapy
;
physiopathology
;
Humans
;
Internet
;
Spleen
;
physiopathology
;
Stomach
;
physiopathology
4.Study on excretion of 20 (S) -protopanaxadiolocotillol type epimers in rats.
Xiang-Meng WU ; Li WANG ; Ying-Ying NI ; Hui WANG ; Wen-Yan WANG ; Qing-Guo MENG
China Journal of Chinese Materia Medica 2014;39(7):1306-1310
Gindenosides are the active ingredients of Panax ginseng. 20 (S) -protopanaxadiolocotillol type epimers are the main metabolites of 20 (S) -protopanaxadiol. The previous studies showed that there are stereoselectivity difference in pharmacodynamics and pharmacokinetics between 24R-epimer and 24S-epimer. The purpose of this study was to explore the excretion of the epimers in bile, feces and urine of rat. Liquid chromatography tandem mass spectrometry method has been performed for determination of 24R-epimer and 24S-epimer in bile, feces and urine. 24R-epimer or 24S-epimer was intragastric administered to rats at a single dose of 10 mg x kg(-1). Results showed that after administration the recovery of 24R-epimer and 24S-epimer in feces was 17.69% and 17.09%, respectively, while both of the two epimers were hardly detected in urine. The 48 h cumulative biliary excretion rate of 24R-epimer was 8.01% after administration, while only 1.47% for 24S-epimer. It indicated that there are stereoselectivity in biliary excretion of the epimers with intragastric administration.
Animals
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Bile
;
chemistry
;
metabolism
;
Drugs, Chinese Herbal
;
chemistry
;
pharmacokinetics
;
Feces
;
chemistry
;
Ginsenosides
;
chemistry
;
pharmacokinetics
;
Male
;
Mass Spectrometry
;
Panax
;
chemistry
;
Rats
;
Rats, Sprague-Dawley
;
Stereoisomerism
;
Urine
;
chemistry
5.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
;
Aortic Valve
;
microbiology
;
pathology
;
Autopsy
;
Brain
;
microbiology
;
pathology
;
Endocarditis, Bacterial
;
complications
;
microbiology
;
pathology
;
Female
;
Heart Ventricles
;
microbiology
;
pathology
;
Humans
;
Mitral Valve
;
pathology
;
Sepsis
;
complications
;
microbiology
;
pathology
;
Substance Abuse, Intravenous
;
complications
;
microbiology
;
pathology
;
Young Adult
6.Prominent smooth muscle differentiation in fibroadenoma of breast: report of a case.
Jiong SHI ; Hong-yan WU ; Yi-fen ZHANG ; Fan-qing MENG ; Xiang-shan FAN
Chinese Journal of Pathology 2011;40(9):636-637
Actins
;
metabolism
;
Adult
;
Breast Neoplasms
;
metabolism
;
pathology
;
surgery
;
Calcium-Binding Proteins
;
metabolism
;
Cell Differentiation
;
Desmin
;
metabolism
;
Diagnosis, Differential
;
Female
;
Fibroadenoma
;
metabolism
;
pathology
;
surgery
;
Hamartoma
;
pathology
;
Humans
;
Hyperplasia
;
Leiomyoma
;
pathology
;
Microfilament Proteins
;
metabolism
;
Muscle, Smooth
;
pathology
;
Phyllodes Tumor
;
pathology
7.Low molecular weight heparin suppresses lymphatic endothelial cell proliferation induced by vascular endothelial growth factor C in vitro.
Guang CAO ; Ji-xiang WU ; Qing-hua WU
Chinese Medical Journal 2009;122(13):1570-1574
BACKGROUNDPancreatic cancer is one of the most aggressive human malignancies. Lymphangiogenesis plays an important role in lymph node metastasis of many solid tumors. It is well known that low molecular weight heparins (LMWHs) can inhibit cell growth, cell invasion and angiogenesis, which are key processes in tumor progression.
METHODSWe measured the expression of vascular endothelial growth factor C (VEGF-C) in pancreatic cancer cells (PANC-1) using reverse transcription-polymerase chain reaction (RT-PCR) and Western blotting. We used an in vitro assay to evaluate the anti-lymphangiogenic effect of an LMWH, Fragmin, on human lymphatic endothelial cell (HLEC) proliferation.
RESULTSFragmin at a low concentration can effectively inhibits HLEC proliferation induced by VEGF-C. VEGF-C secreted by PANC-1 cells stimulated HLEC proliferation. Low concentration LMWH suppressed HLEC proliferation induced by VEGF-C but did not affect proliferation or VEGF-C expression of PANC-1 cells, whereas high concentrations of LMWH inhibited PANC-1 cell proliferation.
CONCLUSIONSThese results suggest that VEGF-C released by cancer cells plays an important role in promoting HLEC proliferation. The LMWH Fragmin has anti-lymphangiogenic effects and may inhibit lymphatic metastasis in pancreatic cancer.
Anticoagulants ; pharmacology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Dalteparin ; pharmacology ; Endothelial Cells ; drug effects ; physiology ; Humans ; Pancreatic Neoplasms ; metabolism ; pathology ; RNA, Messenger ; analysis ; Vascular Endothelial Growth Factor C ; analysis ; genetics ; pharmacology
8.Agroinfiltration, a useful technique in plant molecular biology research.
Zhao-Ming LIU ; Zong-Zhi LIU ; Qing-Wu BAI ; Rong-Xiang FANG
Chinese Journal of Biotechnology 2002;18(4):411-414
Agroinfiltration is a newly developed plant transient gene expression technique, which is simple, rapid and reproducible. It has been widely used in analyses of foreign gene expression, hypersensitive reaction, gene silencing, promoter activity and identification of new disease-resistance genes. In this paper, we describe the principle and the operation procedure of Agroinfiltration and its application in diverse aspects of plant molecular biology research. Our experiences in modification of the Agroinfiltration technique are also provided.
Agrobacterium tumefaciens
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genetics
;
Genetic Vectors
;
genetics
;
Plants
;
genetics
;
Plants, Genetically Modified
;
Research Design
9.Determination of ginkgolic acids by high performance liquid chromatography.
Liu-qing YANG ; Xiang-yang WU ; Jun CHEN
Acta Pharmaceutica Sinica 2002;37(7):555-558
AIMTo establish a simple pre-treated method and high performance liquid chromatographic method for separation and determination of ginkgolic acids in Ginkgo biloba leaves.
METHODSThe ginkgolic acids in the German standard sample were identified by LC/DAD/ESI/MS. The methods for pre-treatment and high performance liquid chromatography determination of ginkgolic acids were studied. Ginkgo biloba leaves were extracted with n-hexane in Soxhlet apparatus, then concentrated under vacuum. The ginkgolic acids can be determined directly by HPLC after one-pre-purified-step by silica gel column chromatography. The eluant was petroleum ether-diethyl ether-formic acid (89:11:1). The chromatographic column was Inertsil ODS-2; the mobile phase was methanol-3% acetic acid (92:8); the flow rate was 1.0 mL.min-1; the column temperature was 40 degrees C; the detection wavelength was at 310 nm.
RESULTSThere were five kinds of ginkgolic acid (C13:0, C15:1, C17:2, C15:0 and C17:1) in ginkgo biloba leaves. The relative percentage content of ginkgolic acids C15:1 and C17:1 was about 85%. Ginkgolic acid C17:2 had not been reported in China. The HPLC indicates that there was nearly no impurities except ginkgolic acids after treated by column chromatography. The results showed that the content of ginkgolic acids in the leaves of Ginkgo biloba collected in April, May and June was 1.48%, 1.19% and 1.11% respectively. The average recovery of Ginkgo biloba leaves collected in June was 97.0%, RSD was 1.7% (n = 6).
CONCLUSIONThe method is accurate, simple and reliable, and can be used for determination of ginkgolic acids in Ginkgo biloba leaves.
Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; analysis ; chemistry ; Ginkgo biloba ; chemistry ; Molecular Structure ; Plant Leaves ; chemistry ; Plants, Medicinal ; chemistry ; Salicylates ; analysis ; chemistry
10.Determination of ginkgolic acids in Ginkgo biloba extract and its preparations by high performance liquid chromatography.
Xiang-yang WU ; Liu-qing YANG ; Jun CHEN
Acta Pharmaceutica Sinica 2003;38(11):846-849
AIMTo establish a high performance liquid chromatographic method for determination of ginkgolic acids in Ginkgo biloba extract and its preparations.
METHODSGinkgo biloba extract and its preparations were extracted with petroleum ether in Soxhlet apparatus, and then concentrated under vacuum. The ginkgolic acids were determined directly by HPLC, and identified by LC/DAD/ESI/MS. The chromatographic column was Inertsil ODS-2; the mobile phase was methanol-3% aqueous acetic acid(92:8); the flow rate was 1.0 mL.min-1; the column temperature was 40 degrees C; the detection wavelength was 310 nm.
RESULTSThere were six kinds of ginkgolic acid (C13:0, C15:1, C17:2, C15:0, C17:1 and an unknown compound C17:3 tentatively) in the Ginkgo biloba extract. The relative percentage content of ginkgolic acids C13:0, C15:1 and C17:1 was above 94%. The content of ginkgolic acids in Ginkgo biloba extract containing high content ginkgolic acids was 1.12%, and RSD was 2.4% (n = 5). The content of ginkgolic acids in one kind of EGb preparations (tablet) was 49.2 micrograms.g-1, and RSD was 4.3% (n = 5). The average recovery was 98.2%, RSD was 2.6% (n = 5).
CONCLUSIONThe method is accurate, fast, simple, and can be used for determination of ginkgolic acids in Ginkgo biloba extract and its preparations.
Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; Ginkgo biloba ; chemistry ; Plants, Medicinal ; chemistry ; Salicylates ; analysis ; Spectrometry, Mass, Electrospray Ionization