Background and purpose:Fumagillin is an inhibitor of type 2 methionine aminopeptidase that can block blood vessel formation. However, its molecular mechanism and therapeutic value in colon cancer still remain to be elucidated.In this study, the effect of Fumagillin on the growth of colon cancer was examined. Methods:Twenty mice were divided into 4 groups and injected subcutaneously with 5?105/L WiDr or HT-29 cells in 200 ?L phosphate-buffered saline (PBS) respectively. After 4 weeks, intraperitoneal injections of Fumagillin (0.1 mg/kg), Cyclo (1 mg/kg), or both were given every 2 days for 4 weeks. The tumor weight and microvessel density (MVD) were examined. Geneexpression profiles were examined by microarray analysis of human umbilical endothelial cells (HUVECs). Results: The Fumagillin-treated mice showed smaller tumor mass and lower MVD-CD105 levels than control ones. In vitro proliferation and tube formation of HUVEC was also significantly decreased by Fumagillin. Microarray analysis of Fumagillin-treated HUVECs showed up-regulation of 71 genes and down-regulation of 143 genes. Expression changes were involved in cell proliferation, migration, adhesion and gene transcription. Quantitative real time-polymerase chain reaction and Western blot revealed decreased expression of cyclin E2, activated leukocyte cell adhesion molecule (ALCAM), and intercellular adhesion molecule-1 (ICAM-1) genes in the presence of Fumagillin. Conclusion: Fumagillin was found to suppress colorectal cancer growth by suppressing angiogenesis. The down-regulation of cyclin E2, ALCAM and ICAM-1 by fumagillin may be involved in the anti-angiogenesis.

Objective: To investigate the rate of post-stroke depression and psychosocial factors related to it, and to provide the direction and the basis for clinical nursing. Methods: 69 patients with stroke were assessed by Zung Self-rating Depression Scale and Type A Behavior Pattern Scale. Their sex, age, behavior type, marital condition, level of education, supportor of medical expenses were collected and analysed statistically. Results: The rate of post-stroke depression was 59.42%, and the rate in type A behavior group was higher than that in the other behavior groups(P

Objective To study the high polar constituents of Gastrodia elata.Methods The constituents were isolated by macroporous resin column chromatography combined with preparative HPLC and identified by spectral analyses and physico-chemical properties comparisons.Results Ten compounds were isolated from H2O and 20% EtOH fractions eluted from resin column and their structures were identified as citric acid monoethyl ester(Ⅰ),uridine(Ⅱ),adenine(Ⅲ),dactylose A(Ⅳ),uracil(Ⅴ),tyrosine(Ⅵ),N2-(p-hydroxybenzyl) guanosine(Ⅶ),1-isoferuloyl-?-D-glucopyranoside(Ⅷ),4-(?-D-glucopyranosyloxy) benzaldehyde(Ⅸ),and p-hydroxyl benzoic acid(Ⅹ).Conclusion Compound Ⅶ is a new compound named gastronucleoside.Other nine compounds are isolated from G.elata for the first time.

Background and purpose: Fumagillin is an inhibitor of type 2 methionine aminopeptidase that can block blood vessel formation. However, its molecular mechanism and therapeutic value in colon cancer still remain to be elucidated.ln this study, the effect of Fumagillin on the growth of colon cancer was examined. Methods: Twenty mice were divided into 4 groups and injected subcutaneously with 5×10~5/L WiDr or HT-29 cells in 200 μL phosphate-buffered saline (PBS) respectively. After 4 weeks, intraperitoneal injections of Fumagillin (0.1 mg/kg), Cyclo (1 mg/kg), or both were given every 2 days for 4 weeks. The tumor weight and microvessel density (MVD) were examined. Gene-expression profiles were examined by microarray analysis of human umbilical endothelial cells (HUVECs). Results: The Fumagillin-treated mice showed smaller tumor mass and lower MVD-CD105 levels than control ones. In vitro proliferation and tube formation of HUVEC was also significantly decreased by Fumagillin. Microarray analysis of Fumagillin-treated HUVECs showed up-regulation of 71 genes and down-regulation of 143 genes. Expression changes were involved in cell proliferation, migration, adhesion and gene transcription. Quantitative real time-polymerase chain reaction and Westem blot revealed decreased expression of cyclin E2, activated leukocyte cell adhesion molecule (ALCAM), and intercellular adhesion molecule-1 (ICAM-1) genes in the presence of Fumagillin. Conclusion: Fumagillin was found to suppress colorectal cancer growth by suppressing angiogenesis. The down-regulation of cyclin E2, ALCAM and ICAM-1 by fumagillin may be involved in the anti-angiogenesis.

Object To study the low polarity constituents of Gastrodia elata Blume Methods The constituents were isolated by column with prepared TLC, and identified by NMR, MS spectra Results Seven compounds were isolated and identified They were p hydroxybenzyl ethyl ether (Ⅰ), ? sitosterol (Ⅱ), palmitic acid (Ⅲ), 2, 2′ methylenebis (6 tert butyl 4 methylphenl) (Ⅳ), p hydroxy benzyl methyl ether (Ⅴ), dimethyl phthalate (Ⅵ), p hydroxybenz aldehyde (Ⅶ) Conclusion Two compounds were isolated from G elata firstly, and compound Ⅳ as tetra benzol dimer is also isolated from the plants of Gastrodia R. Br. and Orchidaceae for the first time

Objective To establish HPLC fingerprint for evaluating and controlling the quality of Gastrodia elata. Methods HPLC Analysis and similarity calculation were used for establishing fingerprint chromatogram and classifying 18 different original samples; LC-MS and pure compound comparisons were employed for the fingerprint peaks identification. Results HPLC Fingerprint chromatogram was cons- tructed with 27 fingerprint peaks, 17 of which were common fingerpring peaks and 12 main compounds were identified. According to the similarity to standardize herbal medicine, 18 samples could be classified three groups, Anhui-Henan, Shanxi-Sichuan, and Yunnan habitats. The two critical points were 0.80 and 0.58 for correlation coefficient and 0.88 and 0.73 for cosine values. Conclusion The selected fingerprint peaks are diagnostic for G. elata and the constituted HPLC fingerprint chromatogram could be used for identifying different habitats and served as a powerful tool for further quality control of G. elata.

An efficient and sensitive analytical method for the simultaneous content determination of 18 amino acids in compound amino acid injection was developed using high performance liquid chromatography (HPLC) with pre-column derivatization. Phenyl isothiocyanate (PITC) was used as derivatization reagent. The target compounds were separated on a Unitary-C18 column (250 mm í 4.6 mm, 5 μm) in gradient elution mode using sodium acetate and the mixture of acetonitrile, methanol and water as mobile phases. The detection wavelength was 254 nm. The derivatization reagent dosage, derivatization time, salt concentration, the pH and the column temperature of mobile phase were investigated. Finally, 18 amino acids were separated within 40 minutes. The method showed that the good linearity (r2 ≥ 0.997 7) was at a range from 9 μg·mL-1 to 1 021 μg·mL-1. The recoveries ranged from 92.6% to 110.7%. And the relative standard deviations (RSD) ranged from 0.01% to 5.68%. The limits of quantification (LOQ, S/N = 10) ranged from 0.02 μg·mL-1 to 13.41 μg·mL-1. This method, which was simple, sensitive and accurate, can be applied for the content determination of amino acids in compound amino acid injections.

Purpurin is a common component ofRubia cordifolia L. The study on its molecular target was useful for elucidating the therapeutic material basis and action mechanism ofR. cordifolia. HT-29 cells were used in the cell culture. The highly expressed G Protein-coupled Receptor-35 (GPR35) agonist was used as target. The label-free optical biosensor cellular assay was used to investigate the agonist activity ofpurpurin at an endogenous receptor. The results showed thatpurpurin can cause DMR response in HT-29 cells. And the DMR response curve type was consistent with zaprinast. Its EC50 was 6.142± 0.189μmol·L-1. In addition,purpurinhad desensitization effect on GPR35 agonist zaprinast in HT-29 cells. GPR35 agonist ML145 blocked the DMR ofpurpurin. It was concluded thatpurpurinwas the GPR35 agonist.

In this study, a novel tetrapeptide hydrophilic interaction chromatography (HILIC) material was synthesized, and corresponding enrichment method for glycopeptides was developed.The tetrapeptide modified silica gel materials (denoted as Poly-DAPD) were synthesized by atom-transfer radical-polymerization (ATRP) and characterized by N2 adsorption desorption and thermometer, thermal gravimetric analyzer (TGA) and X-ray photoelectron spectrometer (XPS).The characterization results indicated that tetrapeptide had been successfully synthesized on silica gel.Poly-DAPD materials showed high enrichment selectivity toward fetuin glycopeptides under solid-phase extraction (SPE) mode.Comparing with commercialized ZIC-HILIC in glycopeptides enrichment of fetuin digest which mixed with 5 mole ratio of albumin bovine (BSA), the as-prepared materials showed higher selectivity in both aspects of the identified number of glycopeptides and anti-interference property.The SPE results demonstrated that the tetrapeptide-based HILIC materials could be a potential tool in large-scale glycosylation analysis.

Objective To explore the effect of CD40 small interfering RNA(siRNA)on the expressions of pe-ripheral blood interleukin(IL)-21 and IL -35 in rats with experimental autoimmune myocarditis (EAM)and its sig-nificance.Methods Twenty 6 -8 week male Lewis rats were divided into normal group,EAMgroup,CD40 siRNA group and siRNA group by using random number table,with 5 rats in each group.The normal rats were induced with phos-phate buffer saline in double foot pads on day 0 and day 7,while the rest 3 groups were induced with cardiac myosin protein to establish EAMmodels.The rats in CD40 siRNA group and siRNA group were respectively injected with CD40 siRNA and siRNA slow virus expression vector through the tail vein of rats on day 7.The rats were executed on 21 day after echocardiogram examination was made.The histopathologic changes were observed by using light microscope and the myocardial histopathology scores were calculated.Enzyme -linked immunosorbent assay was used to determine the levels of IL -21 and IL -35 in peripheral blood.Results (1)Except the normal group,the total incidence rate of rats of each group was 100%,and there was no rat death.(2)Compared with EAM group,the heart mass/body ratio and myocardial histopathology scores were lower in CD40 siRNA group,and the differences were significant (3.13 ±0.21 vs 3.80 ±0.29,2.22 ±0.43 vs 3.32 ±0.51,F =0.332,0.456,all P <0.05).(3)The echocardiogram showed that there was only 1 rat in EAM group with massive pericardial effusion,and there was no pericardial effusion in CD40 siRNA group.EAMgroup,CD40 siRNA group and siRNA group displayed hypertrophy of the ventricular septum and left ventricular wall,narrow heart cavity and weakening of ventricular wall motion.The left ventricular shortening rate in CD40 siRNA group was significantly higher than that in the EAMgroup[(63.34 ±11.06)% vs (38.56 ±6.98)%,F =16.080,P <0.05].(4)The peripheral blood level of IL -21 in CD40 siRNA group was lower than that in EAM group [(141.19 ±17.46)ng/L vs (157.81 ±17.58)ng/L,F =57.008,P <0.05],while its level of IL -35 was signifi-cantly higher than that in the EAMgroup [(195.96 ±18.26)ng/L vs (174.78 ±13.91 )ng/L,F =31.727,P <0.05].(5)The level of IL -21 in peripheral blood was positively correlated with myocardial histopathology scores in EAM group (r = 0.69,P < 0.05 ),but IL -35 was negatively correlated with myocardial histopathology scores (r =-0.64,P <0.05).Conclusions CD40 siRNA might relieve the myocardial inflammation and reduce the myocar-dial injury of EAMrats.The levels of IL -21 and IL -35 can partly reflect the degree of myocardial injury.The mecha-nism may be related to down -regulating the expression IL -21 and up -regulating the expression of IL -35.