Objective To observe the efficacy of prophylactic use of gramsetron(Gra) combined with dexamethasone(DEX) on preventing postoperative nausea and vomiting(PONV) after umbilical one-trocar laparoscopic appendectomy(UOTLA)in children.Methods Sixty children requring UOTLA under general anesthesia were allocated randomly into 3 groups,and each of group included 20 children.Group saline(C),group Gra 40 ?g/kg,group Gra 40 mg/kg and group DEX 0.2 mg/kg(Gra+DEX) were respectively injected intravenously after appendectomy performed outside the abdominal cavity during the operation.Results The incidence of PONV decreased significantly in group Gra and group Gra+DEX than that in group C(Pa

Adolescent ; Alkaline Phosphatase ; metabolism ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Bleomycin ; therapeutic use ; Cisplatin ; therapeutic use ; Diagnosis, Differential ; Dysgerminoma ; pathology ; Etoposide ; therapeutic use ; Female ; Gonadoblastoma ; drug therapy ; metabolism ; pathology ; surgery ; Humans ; Hysterectomy ; methods ; Inhibins ; metabolism ; Isoenzymes ; metabolism ; Ovarian Neoplasms ; drug therapy ; metabolism ; pathology ; surgery ; Young Adult

Based on the infrared spectra of Lophatheri Herba and Commelinae Herba, one-dimensional infrared spectra, second derivative spectra and two-dimensional correlated spectra were used to find out the differences between Lophatheri Herba and its imitations, respectively. The common peak ratio and variant peak ratio dual-indexes sequential were calculated and established according to infrared spectra of eleven batches of herbs. Infrared spectral data of Lophatheri Herba cluster analysis was applied to explore the similarity between each sample. The grouping results trend of sequential analysis of dual-indexes and cluster analysis was accordant. The results showed that the differences could be found by multi-level identification, and the source and the quality of the herbs could be effectively distinguished by the two analysis methods. Infrared spectroscopy, used in the present work exhibited some advantages on quick procedures, less sample required, and reliable results, which could provide a new method for the identification of traditional Chinese medicine with the imitations and adulterants, and the control of quality and origin.
Drugs, Chinese Herbal ; analysis ; chemistry ; Plant Leaves ; chemistry ; Plants, Medicinal ; chemistry ; Reproducibility of Results ; Spectrophotometry, Infrared ; methods ; Spectroscopy, Fourier Transform Infrared ; methods

This study is designed to obtain recombinant human acetylcholinesterase (rhAChE) and apply it in screening acetylcholinesterase inhibitors. The rhAChE was overexpressed in HEK293 cells transfected by plasmid of pCMV-AChE with the cationic liposome and rhAChE was found to be secreted into cell culture medium. AChE activity was assayed according to modified Ellman method to obtain kinetic parameters. IC so50 values for donepezil compounds of rhAChE were calculated to determine their activities of inhibition. The results showed that Km value was 151.9 micromol.L-1 donepezil inhibited rhAChE in a mixed competitive-noncompetitive way (Ki= 16.03 nmol.L-1, Ki = 18.36 nmol.L-1) and that most new compounds tested exhibited high activities of inhibition on rhAChE. The study suggests that rhAChE is available to be applied in screening AChE inhibitors in vitro.
Acetylcholinesterase ; genetics ; metabolism ; Cholinesterase Inhibitors ; analysis ; pharmacology ; HEK293 Cells ; Humans ; Indans ; analysis ; pharmacology ; Inhibitory Concentration 50 ; Kinetics ; Piperidines ; analysis ; pharmacology ; Plasmids ; Recombinant Proteins ; genetics ; metabolism ; Transfection

Abortion, Spontaneous ; diagnosis ; genetics ; metabolism ; Cyclin-Dependent Kinase Inhibitor p57 ; metabolism ; Diagnosis, Differential ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Hydatidiform Mole ; diagnosis ; genetics ; metabolism ; Immunohistochemistry ; Pregnancy ; Uterine Neoplasms ; diagnosis ; genetics ; metabolism

Microvesicles transport special proteins, micro RNA and DNA segments, which provides new access to intercellular communication. Tumor-derived membrane microvesicles (TMV) are involved in the tumor progress by transporting tumor-derived proteins, delivering microRNA to surrounding normal cells to alter their phenotype and promoting reverse transcription to interfere gene stability and to create tumor microenvironment. TMV also play crucial roles in tumor angiogenesis and matrix degradation, which facilitates malignant cell metastasis. TMVs are also involved in escaping immunological surveillance by intensifying the function of suppressor T cell and inducing apoptosis of cytotoxic T cells. On the other hand, microvesicles carry tumor antigens and can be used for development of tumor vaccines; some new vaccines such as AEX and DEX are under early clinical trials. Circulating microRNA and DNA segments in body fluid can be a new potential biomarker for cancer diagnosis and prognosis. Purification of microvesicles needs to be further improved, which is important for identification of microvesicles and their subtypes.
Cell Communication ; Cytoplasmic Vesicles ; chemistry ; physiology ; ultrastructure ; Humans ; Neoplasms ; pathology ; physiopathology ; Neoplastic Processes ; Neovascularization, Pathologic ; Tumor Microenvironment

Adolescent ; Child ; Child, Preschool ; Chromosomes, Human, Pair 6 ; Female ; Humans ; Infant ; Loss of Heterozygosity ; Male ; Microsatellite Repeats ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; genetics

OBJECTIVETo reveal the relation between endogenous hormones and the flower bud differentiation in Schisandga chinensis.

METHODTop buds of extremely short branch and axillary buds of long branch in the same plant of S. chinensis were used as material and the contents of endogenous hormones were measured during different periods of the flower bud differentiation with HPLC.

RESULTThe result showed that flower bud differentiation and the formation of female flower were inhibited by high concentration of GA3 and were promoted by high concentration of ABA or ZT. Low ratio of GA3/ABA has the same result.

CONCLUSIONThere was a correlation between endogenous hormones and the flower bud differentiation of S. chinensis.

Abscisic Acid ; metabolism ; Flowers ; growth & development ; Germination ; Gibberellins ; metabolism ; Plant Growth Regulators ; metabolism ; Plants, Medicinal ; growth & development ; metabolism ; Schisandra ; growth & development ; metabolism ; Zeatin ; metabolism

OBJECTIVETo review the history, development, and reality of neuronavigation surgery in China and to discuss the future of neuronavigation surgery.

DATA SOURCESPubMed, the China Knowledge Resource Integrated Database, and the VIP Database for Chinese Technical Periodicals were searched for papers published from 1995 to the present with the key words "neuronavigation," functional navigation," "image-guided," and "stereotaxy." Articles were reviewed for additional citations, and some information was gathered from Web searches.

STUDY SELECTIONArticles related to neuronavigation surgery in China were selected, with special attention to application to brain tumors.

RESULTSSince the introduction of neurosurgical navigation to China in 1997, this core technique in minimally invasive neurosurgery has seen rapid development. This development has ranged from brain structural localization to functional brain mapping, from static digital models of the brain to dynamic brain-shift compensation models, and from preoperative image-guided surgery to intraoperative real-time image-guided surgery, and from application of imported equipment and technology to use of equipment and technology that possess Chinese independent intellectual property rights.

CONCLUSIONSThe development and application of neuronavigation techniques have made neurological surgeries in China more safe, precise and effective, and less invasive, and promoted the quality of Chinese neurosurgical practice to the rank of the most advance and excellence in the world.

Animals ; Brain ; pathology ; China ; Humans ; Neuronavigation ; methods ; Neurosurgical Procedures ; methods

UNLABELLEDOBJECTIVE To assess the efficacy of concurrent chemoradiation with paclitaxel and platinum and external irradiation, and to compare the effect of extensive regional field irradiation with conventional local field irradiation for locally advanced esophageal cancer.

METHODSFrom Oct. 2000 to Jan. 2006, 89 patients with locally advanced esophageal cancer were registered in this study. All patients were inoperable or refused to undergo operation. Patients were divided into two groups: extensive regional field group (51 patients) and conventional field group (38 patients). Patients received radiotherapy at a total dose of 60 Gy in 30 fractions within 7 weeks,and concurrent paclitaxel 125 mg/m2 on D1, cisplatin 20 mg/m2 on D1-D3, or oxaliplatin 130 mg/m2 on D2 in the fist and fourth week of external radiation.

RESULTSOf these patients, 87.6% completed the treatment regimen with a response rate of 75.5% and 66.7% in the extensive regional field group and conventional field group, respectively. Grade 3 or severe toxicities of leucopenia (33.3% vs. 23.7%), thrombocytopenia (76.0% vs. 2.6%), and esophagitis (17.7% vs. 26.3%) were observed in extensive regional field group and conventional field group, respectively. Major late toxic effect was lung fibrosis. There were no statistically significant differences in the incidence of the toxicity profile between two groups. The overall 3-year survival rates was 32.8%, and the overall 3-year recurrence and metastasis-free survival rates was 34.5%. The overall 3-year locoregional control rate was 44.0%. No significant difference was found between two groups in the 3-year survival (38.2% % vs. 28.1%, P = 0.59). For the patients with stage II and stage III cancers who completed the planned treatment, large regional field radiotherapy significantly improved the 3-year survival (57.3% vs. 22.2% , P = 0.03) or 3-year recurrent and metastasis-free survival (55.5% vs. 23.0%, P = 0.03) or 3-year locoregional control (65.9% vs. 30.2%, P = 0.02) than conventional field radiotherapy.

CONCLUSIONhistorical results, the combination of paclitaxel/platinum and radiation in this study can improve the survival for locally advanced esophageal, and the side effect is well tolerated. Compared with the conventional field group, concurrent chemoradiotherapy with the large regional field can significantly improve 3-year survival and locoregional control for stage II or stage III esophageal cancer.

Adult ; Aged ; Aged, 80 and over ; Antineoplastic Combined Chemotherapy Protocols ; adverse effects ; therapeutic use ; Carcinoma, Squamous Cell ; drug therapy ; pathology ; radiotherapy ; Cisplatin ; administration & dosage ; Combined Modality Therapy ; Esophageal Neoplasms ; drug therapy ; pathology ; radiotherapy ; Esophagitis ; chemically induced ; etiology ; Female ; Follow-Up Studies ; Humans ; Leukopenia ; chemically induced ; etiology ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Neoplasm Staging ; Organoplatinum Compounds ; administration & dosage ; Paclitaxel ; administration & dosage ; Particle Accelerators ; Radiotherapy Dosage ; Radiotherapy, High-Energy ; adverse effects ; methods ; Remission Induction ; Survival Rate ; Thrombocytopenia ; chemically induced ; etiology