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.

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.

Objective:To develop an HPLC-DAD-ELSD method for the determination of nitidine chloride, 5-ethoxychelerythrine, bergeninum and ardisiacrispin A in Shangtong tinctures ( STD) . Methods: A Hypersil C18 column was used as the chromatographic column, the flow rate was 0. 8 ml·min-1 . For nitidine chloride and 5-ethoxychelerythrine, the mobile phase A consisted of acetoni-trile,the mobile phase B consisted of 0. 1% formic acid-triethylamine (pH 4. 5),and the DAD detection wavelength was at 273 nm. For bergeninum and ardisiacrispin A, the mobile phase consisted of methanol-water(25∶75), the temperature of drift tube was set at 95℃, and the gas flow (N2) was set at 2. 5 SLPM·min-1. Results:There was a good linear relationship between the concentration and peak area for nitidine chloride and 5-ethoxychelerythrine within the range of 0. 021-0. 426 μg (r=0. 999 5) and 0. 075-1. 494 μg (r=0. 999 8), respectively. The average recovery was 99. 22%(RSD=0. 64%) and 98. 61%(RSD=0. 46%), respectively. There was a good linear relationship between the concentration and peak area for bergeninum and ardisiacrispin A within the range of 0. 215-4. 304 μg(r=0. 999 3) and 0. 286-5. 728 μg(r=0. 999 7), respectively. The average recovery was 99. 15%(RSD=0. 77%) and 99. 25%(RSD=0. 56%) accordingly. Conclusion:The method is accurate, sensitive and reproducible, and can be used in the de-termination of nitidine chloride, 5-ethoxychelerythrine, bergeninum and ardisiacrispin A in STD.

Objective To investigate the effects of levocarnitine on pregnancy outcome of the patients with obstructive azoospermia treated with intracytoplasmic sperm injection ( ICSI ) . Methods A total of 74 patients with obstructive azoospermatism treated with ICSI randomly divided into 2 groups:treatment group( n=38) , taking levocarnitine before treatment with ICSI 1 g twice a day for three months;control group( n=36) , taking vitamine E before treatment with ICSI 0.1 g twice a day time for three months.tumor necrosis factor-α(TNF-α), reactive oxygen species(ROS) level, epididymal sperm motility and morphology in epididymal fluid of the two groups were determined before and after treatments. The number of matured oocytes, fertilization, and embryos of adequate quality, the rate of fertilization and embryo of adequate quality, and pregnancy rates after PESA-ICSI were compared between the two groups. Results TNF-α in epididymal fluid before and after the treatment was (5.39±2.28)and(4.05±2.14)ng.mL-1 in the treatment group(P<0.05), and(4.97±2.13)and(4.83±2.35)ng.mL-1 in the control group.ROS in epididymal fluid before and after the treatment was(62.72±8.51),(56.28±8.70)RLU.s-1(P<0.05)in the treatment group( P<0. 05 ) , and ( 62. 61 ± 7. 55 ) and ( 61. 05 ± 6. 77 ) RLU . s-1 in the control group. After treatment with levocarnitine, epididymal sperm motility was significantly increased(P<0.05).There were no significant differences in all the indexes in the control group before and after the treatment(P>0.05).After PESA-ICSI, the number and percentage of high quality embryo in the treatment group were significantly higher than those of the control group(P<0.05). Conclusion Levocarnitine can down-regulate epididymal TNF-α and ROS in patients with obstructive azoospermatism, thereby improve the environment of the epididymis and elevate the quality of sperm and ICSI pregnancy outcome.

BACKGROUND:The infection after spinal internal fixation was its serious complications. A number of studies have shown that erythrocyte sedimentation rate and C-reactive protein are of great importance in judging infections. OBJECTIVE:To analyze the trend of change of erythrocyte sedimentation rate and C-reactive protein for patients without infection after the cervical fixation. METHODS:Total y 56 patients, who underwent cervical fixation from October 2013 to July 2014, were retrospectively analyzed, and then divided into anterior cervical group (n=29) and posterior cervical group (n=27). Patients in the anterior cervical group underwent anterior cervical decompression bone graft internal fixation. Patients in the posterior cervical group underwent posterior cervical unilateral open door decompression internal fixation. The peripheral blood was col ected before fixation and at the early morning of the 1, 3, 6, 9 days after fixation. Erythrocyte sedimentation rate and C-reactive protein values were determined. The fol ow-up of patients was more than one year. Signs of infection did not appear. RESULTS AND CONCLUSION:(1) General rule:After the cervical fixation, the erythrocyte sedimentation rate was increased significantly and reached a peak on postoperative day 6. The peak level gradual y decreased but has not returned to normal at the 9 postoperative days. The C-reactive protein increased significantly on the first postoperative day and reached a peak on postoperative day 3. The peak level rapidly decreased but has not returned to normal at the 9 postoperative days. The level of erythrocyte sedimentation rate of patients in the posterior cervical group was significantly higher than that in the anterior cervical group at 3, 6 and 9 days after internal fixation (P<0.05). There was no significant difference in the C-reactive protein between these two groups (P>0.05). (2) These results demonstrate that C-reactive protein is an important indicator of monitoring the inflammatory response of patients after cervical internal fixation, which was conductive to the judgment of early infection after internal fixation. The abnormal inflammatory indices of erythrocyte sedimentation rate and C-reactive protein do not suggest a presence of blade infection after internal fixation. C-reactive protein can reach the peak at 3 days after fixation. It is recommended to check blood at 2 and 3 days. If there is no apparent rebound, then the possibility of infection is smal . It may indicate the presence of infection if the inflammatory indices increased again or decreased slowly after the decrease.

Objective To explore the value of 64-slice CT coronary artery angiography in detecting anomalous origin of left coronary artery from the pulmonary artery (ALCAPA) in infants. Methods Ten children aged from 5 months to 2 years and weighed from 5.5 to 10.0 kilograms with surgical confirmed ALCAPA were underwent contrast-enhanced retrospective ECG-gated 64-slice CT, and the data were retrospectively analyezd. Scanning were performed with 80 kV tube voltage, 150 mA tube current, 0.35 s rotation time, 0.625 mm slice thickness and 0.2 pitch. Results The heart rate ranged from 110 to 150 beats per minute. All images were good enough for diagnosis. The radiation dose was 1.11-1.62 mSv. The left coronary arteries were found to originate from the posterior-right sinuse in 4 patients, from posterior-left sinuse in 4 parients, from posterior-right wall and inferior wall above the pulmonary sinuses in 1 patient, respectively. Conclusion The 64-slice CT coronary artery angiography can reveal the location of the ectopic ostium and the course of left coronary artery in ALCAPA infants with low radiation dose.

Objective To compare the difference among DNA damages in physics processes caused by protons with different energies around Bragg peak.Methods By constructing the nucleus and DNA model using Geant4 and simulating the transportation processes of protons with different energies around Bragg peak in nucleus model based on Geant4-DNA,the information of interaction points were recorded.16％ of them were picked randomly to use as the points at which protons interact with DNA.After finding out the points which broke the DNA and writing their information to new files,these new files were treated with density-based spatial clustering of applications with noise (DBSCAN),so as to analyze and calculate the difference of DNA damages caused by protons with different energies.Results With the protons with energies from 20.0 to 0.6 MeV,the numbers of damage points and damage clusters increased from 49.86 to 549.88 and from 2.92 to 82.46,respectively;the numbers of clusters with different sizes had a remarkable increase,and the number of clusters with size not less than 5 increased by 400 times.The average cluster size increased slightly.Simple single strand breaks (SSSBs),complex single strand breaks (CSSBs),simple double strand breaks (SDSBs) and complex double strand breaks (CDSBs) of DNA increased by about 8,26,24 and 64 times,respectively.The proportion of single strand breaks (SSBs) decreased from 96.69％ to 89.37％,and the double strand breaks (DSBs) increased from 3.31％ to 10.63％.Conclusions The lower proton energy would result in the more complex damage to DNA and the harder repair of DNA damage.

OBJECTIVE:To optimize the drug placement in the automated drug dispensing machine to improve work efficien-cy. METHODS:Based on the principle of the minimum time algorithm,the drug which would be used at a high frequency was placed in the drug storage tank nearest to the drug outlet. Meanwhile,the rule of drug use was drawn from the information on a large number of prescriptions,based on which the drugs correlated with each other were placed in the drug storage tanks that were adjacent. With daily time it takes to add drugs,average time it takes to make up a prescription and the maximum number of drugs stored as the evaluated indexes,the initial drug placement in the automated drug dispensing machine was optimized. The changes in the indexes within 3 months before and after the above-mentioned optimization were statically analyzed. RESULTS:After calculat-ing the three-dimensional sizes of the packages of drugs and the dispensing frequency data of the previous year,354 drugs were se-lected and placed in the nearer or farther storage tanks in the automated dispensing machine according to the dispensing frequency and the correlation among them. After the optimization of the placement,daily time it takes to add drugs reduced by 54 min(218 vs. 165 min)on average,average time it takes to make up a prescription reduced by 8 s(24 vs.16 s)and the maximum number of drugs stored increased by 1 333 boxes(13 113 vs. 14 446 boxes)on average. There was statistical significance in differences(P<0.05). CONCLUSIONS:The initial drug placement in the automated drug dispensing machine that was optimized by minimum time algorithm has reduced daily time it takes to add drugs and average time it takes to make up a prescription and increased the maximum number of drugs stored and thus improved work efficiency.

OBJECTIVE:To establish a method for simultaneous determination of the contents of ligustroflavone,specnuezhe-nide,demethylwedelolactone and wedelolactone in Zibu ganshen pill. METHODS:Dual-wavelength HPLC was performed on the column of Elite C18 with mobile phase of acetonitrile-0.5%acetic acid(gradient elution)at flow rate of 0.9 ml/min,column temper-ature was 25 ℃,detection wavelengths were 224 nm(0-30 min) and 351 nm (30-50 min),and the injection volume was 20 μl. RESULTS:The linear range was 6.75-135.00μg/ml(r=0.999 5)for ligustroflavone,6.54-130.80μg/ml(r=0.999 8)for specnuezhe-nide,4.90-98.00μg/ml(r=0.999 4)for demethylwedelolactone and 6.42-128.40μg/ml(r=0.999 6)for wedelolactone;RSDs of pre-cision,stability and reproducibility tests were no more than 1.25%;average recoveries were 96.15%-99.96%(RSD<2%,n=6). CONCLUSIONS:The method is rapid,sensitive and accurate,and can be used for the contents determination of ligustroflavone, specnuezhenide,demethylwedelolactone and wedelolactone in Zibu ganshen pill.

Objective To explore the clinical effect of dopamine,phentolamine,recombinant interferon α combined with nasal continuous positive airway pressure(CPAP) ventilation in treating severe infantile bronchiolitis.Methods Ninety-five cases of infantile severe bronchiolitis were divided into the observation group(55 cases) and control group (40 cases).The control group was given the combined treatment scheme of dopamine,phentolamine and recombinant interferon α,while on this basis the observation group was added with NCPAP.The curative effects were compared between the two groups.Results The total effective rate in the observation group was significantly higher than that in the control group(P<0.05);the temperature recovery time,wheezing disappearance time,cough stopping time,lung wheezing sound disappearance time and hospitalization time in the observation group were significantly lower than those in the control group(P<0.05);the breathing rate,heart rate and PaCO2 level after treatment in the two groups were significantly lower than those before treatment,the levels of PaO2,PaO2/FiO2 and pH were significantly higher than those before treatment in the same group,the differences were statistically significant(P<0.05);the breathing rate,heart rate and PaCO2 level after treatment in the observation group were significantly lower than those in the control group(P<0.05);the levels of PaO2,PaO2/FiO2 and PH after treatment in the observation group were significantly higher than those in the control group(P<0.05);the levels of IL-8,sVCAM-1and LTE4 after treatment in the two groups were significantly lower than those before treatment(P<0.05);there was no statistically significant difference in the levels of serum IL-8,sVCAM-1 and urine LTE4 between the two groups(P>0.05);the recurrence rate and death rate in the observation group were significantly lower than those in the control group with statistical difference(P<0.05);the occurrence rate of adverse situation during treatment period had no statistical difference between the two groups(P>0.05).Conclusion Dopamine,phentolamine,recombinant interferon α combined with NCPAP has obviously clinical effect for treating infantile severe bronchiolitis,can effectively improve the blood gas analytical indexes,reduces the signs and symptoms relief time,reduces the rates of relapse and death,and has higher clinical application value.