1.Optimization of extraction process for tannins from Geranium orientali-tibeticum by supercritical CO2 method.
Song XIE ; Zhi-Ping TONG ; Rui TAN ; Xiao-Zhen LIU
China Journal of Chinese Materia Medica 2014;39(15):2912-2914
In order to optimize extraction process conditions of tannins from Geranium orientali-tibeticum by supercritical CO2, the content of tannins was determined by phosphomolybdium tungsten acid-casein reaction, with extraction pressure, extraction temper- ature and extraction time as factors, the content of tannins from extract of G. orientali-tibeticum as index, technology conditions were optimized by orthogonal test. Optimum technology conditions were as follows: extraction pressure was 25 MPa, extraction temperature was 50 °C, extracted 1.5 h. The content of tannins in extract was 12.91 mg x g(-1), extract rate was 3.67%. The method established could be used for assay the contents of tannin in G. orientali-tibeticum. The circulated extraction was an effective extraction process that was stable and feasible, and that provides a way of the extraction process conditions of tannin from G. orientali-tibeticum.
Carbon Dioxide
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chemistry
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Chemical Fractionation
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methods
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Drugs, Chinese Herbal
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chemistry
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Geranium
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chemistry
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Tannins
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isolation & purification
3.Novel tumor markers-circulating miRNA.
Li XIE ; Xiao-ping QIAN ; Bao-rui LIU
Chinese Journal of Oncology 2011;33(9):641-642
Animals
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Biomarkers, Tumor
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blood
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genetics
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metabolism
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Gene Expression Profiling
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Gene Expression Regulation, Neoplastic
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Humans
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MicroRNAs
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blood
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genetics
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metabolism
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Neoplasms
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blood
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diagnosis
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genetics
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metabolism
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Prognosis
4.Different implants in the repair of Denis B thoracolumbar burst fracture:Cobb’s angle and height of anterior border of injured vertebral body
Ping XIE ; Jianguo ZHAO ; Youli SAN ; Yuchun XIAO ; Yang LU
Chinese Journal of Tissue Engineering Research 2015;(31):4949-4954
BACKGROUND:Denis B thoracolumbar burst fractures are common spinal injury and may be involved in the upper end plate injury. Fracture reduction and pedicle screw fixation are used to repair above injury. This scheme can effectively achieve the aim of correcting deformity, but the trabecular bone after crushing cannot be fuly recovered. OBJECTIVE:To observe the repair effect of fracture reduction and pedicle screw fixation + artificial bone graft in vertebral body on Denis B thoracolumbar burst fracture, and compare with fracture reduction and pedicle screw fixation alone. METHODS:Clinical data of 70 cases of Denis B thoracolumbar burst fractures, who were treated in the Department of Orthopedics, Zhangjiagang Aoyang Hospital from January 2012 to December 2014, were retrospectively analyzed. According to repair scheme, they were equaly divided into two groups. Patients in the control group received fracture reduction and pedicle screw fixation. Patients in the observation group received fracture reduction and pedicle screw fixation + artificial bone graft in vertebral body. Oswsetry Disability Index, height of anterior border of injured vertebral body, lower back pain visual analogue scale and vertebral kyphosis Cobb’s angle were compared and observed between the two groups before repair, 1 week, 3 and 6 months after repair. RESULTS AND CONCLUSION:No significant difference in Visual Analogue Scale was detected at 1 week, 3 and 6 months after repair between the observation and control groups (P > 0.05). Oswsetry Disability Index was significantly lower in the observation group than in the control group (P < 0.05). No significant difference in the height of anterior border of injured vertebral body was detected between the observation and control groups (P > 0.05). Cobb’s angle was significantly lower in the observation group than in the control group (P < 0.05). These findings suggest that fracture reduction and pedicle screw fixation + artificial bone graft in vertebral body obtained good repair effects on Denis B thoracolumbar burst fracture, not only effectively corrected Cobb’s angle and the height of anterior border of injured vertebral body, but also helped to restore normal spinal loads by filing bone in the injured vertebral body.
5.A novel HIF-1 inhibitor--manassantin A derivative LXY6099 inhibits tumor growth.
Fang-Fang LAI ; Xiao-Yu LIU ; Fei NIU ; Li-Wei LANG ; Ping XIE ; Xiao-Guang CHEN
Acta Pharmaceutica Sinica 2014;49(5):622-626
Hypoxia-inducible factor-1 (HIF-1) is a key transcription factor on hypoxia responses in mammalian tissues. HIF-1 plays as a positive factor in solid tumor and leads to hypoxia-driven responses that enhance its downstream gene expression for tumor growth and survival. LXY6099 was obtained by the structural modification and optimization of manassantin A (MA) as a high potent HIF-1 inhibitor. Antitumor activity of LXY6099 was observed in this study. LXY6099 with an IC50 value of 2.46 x 10(-10) mol x L(-1) showed more sensitive inhibition activity to HIF-1 than that of MA detected by reporter gene assay (> 100 folds). It showed strong inhibition on the growth of human solid tumor cell lines. Furthermore, LXY6099 exhibited significant antitumor activity against established human tumor xenografts in nu/nu mice with treatment of MX-1 breast cancer. Thus, LXY6099 as a novel HIF-1 inhibitor could be further developed into anti-cancer agents.
Animals
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Antineoplastic Agents
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pharmacology
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Breast Neoplasms
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metabolism
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Cell Line, Tumor
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Gene Expression Regulation, Neoplastic
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Heterografts
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Humans
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Hypoxia-Inducible Factor 1
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metabolism
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Lignans
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pharmacology
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Mice, Nude
6.Combined Therapy on Hepatoblastoma and Evaluation of Relative Factors on Prognosis of It
yong, XIE ; guang-hui, LONG ; xiao-ping, LIU ; xiao-chu, ZHOU ; li-ming, ZHONG
Journal of Applied Clinical Pediatrics 2004;0(11):-
Objective To explore a more reasonable and effective therapeutic regimen and evaluate prognostic factors in hepatoblastoma patients after combined therapy.Methods Sixteen patients diagnosed on hepatoblastoma between Jan.2000 and Nov.2007 were reviewed and followed-up.Resection with chemotherapy was taken among 16 cases.Chemotherapy included pre-operation and post-operation.Five cases were cured by transcatheter arterial chemombolization(TACE).Six cases were cured by single chemotherapy(both TACE and single chemotherapy were taken in 2 cases).Five cases weren't cured by pre-operation chemotherapy.Nine cases were subjected to curative resection,3 cases to alleviative resection,2 cases with single chemotherapy,1 case with single TACE,and 1 case refused operation and left hospital.Their mean survival duration was 13.5 months(3-98 months).SPSS 13.0 software was used to analyze the data.Results The total survival rate of cases as stage Ⅳ as lower than cases as stage Ⅰ,Ⅱand Ⅲ.Both alpha-fetoprotein(AFP)100 000 ?g/L cases had worse survival rate.The prognosis of mixed type was better than fetal type,embryonal type and anaplasia type.The survival rate of cases with standard chemotherapy was higher than cases with unstandard chemotherapy.And the surgical resection cases had better survival chance than non-surgical resection cases.The survival rate of surgical residual cases was worse than non-surgical residual cases.Conclusions Chemotherapy can improve the total survival rate and long-term survival rate of hepatoblastoma patients.TACE is a safe and effective choice for hepatoblastoma patients.We need to be alert and make the diagnosis as early as possibe,and treat it early and properly.
8.Synchronous cervical intraepithelial neoplasia and cervical follicular non-Hodgkin lymphoma: report of a case.
Hong ZHU ; Jian-lan XIE ; Ran YU ; Ling-ping GONG ; Xiao-ge ZHOU
Chinese Journal of Pathology 2009;38(12):841-842
Adult
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Antibodies, Monoclonal, Murine-Derived
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therapeutic use
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Antigens, CD20
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metabolism
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Antineoplastic Agents
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therapeutic use
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Antineoplastic Combined Chemotherapy Protocols
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therapeutic use
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Cervical Intraepithelial Neoplasia
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drug therapy
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metabolism
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pathology
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surgery
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virology
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Cyclin-Dependent Kinase Inhibitor p16
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metabolism
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Cyclophosphamide
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therapeutic use
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Doxorubicin
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therapeutic use
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Female
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Follow-Up Studies
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Humans
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Lymphoma, Follicular
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drug therapy
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metabolism
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pathology
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surgery
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virology
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Neoplasm Staging
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Neprilysin
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metabolism
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Papillomavirus Infections
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Prednisone
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therapeutic use
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Receptors, Complement 3d
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metabolism
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Rituximab
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Uterine Cervical Neoplasms
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drug therapy
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metabolism
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pathology
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surgery
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virology
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Vincristine
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therapeutic use
10.RNA-Seq and genuine traditional Chinese medicine.
Xiao-Yue WANG ; Jing-Yuan SONG ; Cai-Xiang XIE ; Jian-Ping HAN ; Shi-Lin CHEN
Acta Pharmaceutica Sinica 2014;49(12):1650-1657
RNA-Sequencing (RNA-Seq) is a newly-developed method in transcriptome research, it can afford more accurate transcription information and be more quickly by using Next-generation Sequencing (NGS) technology. RNA-Seq has been widely used in various biological fields. Genuine traditional Chinese medicines (TCM), with good quality and therapeutic effect, were always praised highly and used by famous physicians. The geo-herbalism formation of TCM is based on the product of the gene expression at specific space and time. So it has been a research hotspot to analyze the mechanism of biosynthesis through RNA-Seq in the study on the secondary metabolism of medicinal plant. This article mainly illustrates the RNA-Seq and its advantages, it also discusses the potential application in genuine TCM, and it can provide useful information for other researchers.
Drugs, Chinese Herbal
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Gene Expression Profiling
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High-Throughput Nucleotide Sequencing
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Medicine, Chinese Traditional
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Plants, Medicinal
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genetics
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RNA
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Sequence Analysis, RNA
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Transcriptome