The leading bioregional pesticide,Bacillus thuringiensis,is accepted by the public and widely used biopesticide in the world.B. thuringiensis chitinase may contribute to the biocontrol of phytopathogenic fungi and enhance insecticidal activity.It helps to take full advan- tage of Bt and upgrade the efficiency.This paper reviews the progresses of B.thuringiensis chitinase.

Objective To analyze the ecological environmental differences of hibernation hole and temporary hole of Himalayan marmot based on global positioning system (GPS),remote sensing (RS) and geographical information system (GIS) in Yushu City,Qinghai Province.Methods Hibernation holes and temporary holes were located based on GPS.Ecological environment factors related with Himalayan marmot,such as land surface temperature (LST),digital elevation model (DEM),normalized different vegetation index (NDVI),were extracted based on RS and GIS.The ecological environment differences between hibernation hole and temporary hole were explored based on epidemiological statistical method.Results Monthly LST (degree Kelvin,K) of hibernation hole was slightly higher than that of temporary hole in the same period.Yearly day LST of hibernation hole was 1.1 K higher than that of temporary hole in the same period.Yearly night LST of hibernation hole was 0.3 K higher than that of temporary hole in the same period.Monthly NDVI of temporary hole was slightly higher than that of hibernation hole in the same period.Yearly NDVI of temporary hole was 0.001 higher than that of hibernation hole in the same period.DEM of temporary hole was about 40 m higher than that of hibernation hole.The top two ratios of soil type factors were both alpine meadow soil and dark felty soil for hibernation hole and temporary hole,which were 62.1％ and 29.3％,64.4％ and 25.6％.The top two ratios of land cover factors were both rainfed cropland and mosaic cropland for hibernation hole and temporary hole,which were 43.3％ and 25.8％,40.0％ and 26.2％.Conclusions Soil type factors and land cover factors for hibernation hole and temporary hole are similar.Lower DEM and higher LST are chose for hibernation hole,and better NDVI is chose for temporary hole,which is good for food intake.

Objective To study the anti-tumor effects of pEgr-1-endostatin-TNF-α generadiotherapy on mice bearing Lewis lung carcinoma, and to explore the mechanism involved. Methods 240 mice with Lewis lung carcinoma were randomly divided into four groups, including control group,irradiation group, liposome group, and liposome combined irradiation group. The plasmids packed by liposome were injected locally into the tumors of the mice, and the tumors of liposome combined irradiation group were irradiated with 10 Gy γ-rays 24 h later. The expression levels of TNF-α and endostatin in mouse serum were measured by ELISA. Then the tumor growth rates at different time were observed. Tumor angiogenesis density were estimated on frozen sections stained with CD31 by using the Chalkley counting method to vessel hot-spots. The tumor inhibition rates were also calculated. Results Radiation induced the expression of pEgr-1-endostatin-TNFα. The endostatin and TNF-α were expressed steadily for about 4 weeks. The highest levels of expression of the endostatin and TNF-α were (52. 64 ±4. 19)and( 12. 01 ±0. 87 ) ng/ml at 2 week. The expression levels of TNF-α and endostatin were higher in combined therapy group than those in other groups( F = 29. 726,P ＜ 0.05 ). Compared with the control group, the density of tumor angiogenesis were depressed [ (4.7 ± 0. 8 ) vs ( 10.0 ± 1. 2)/field, t = 14. 063, P ＜ 0.05 ] and tumor growth were significantly inhibited compared to the control group and irradiation group [ (5907. 2 ±78.6), (4653.4±32.8) and (763.5 ± 12.3) mm3, F= 16.415,P ＜0.05)]. Conclusions The expression of pEgr-1-endostatin-TNFα could be induced by irradiation in dose- and time-dependent manner. The effect of antitumor and angiogenesis inhibition may be more significant than irradition.

Background and purpose: L-asparaginase (L-Asp) is an important drug in the treatment of childhood lymphoid neoplasms at present, but a lot of adverse reactions of L-Asp were observed. Pegasparaginase (PEG-Asp) is available in China in recent years. This study aimed to explore efifcacy and side-effect of PEG-Asp as ifrst-line treatment in childhood acute lymphoblastic leukemia (ALL) and lymphoblastic lymphoma (LBL). Methods:A total number of 211 ALL or LBL patients were treated with CCLG 2008 or BFM-90 protocol with PEG-Asp or L-Asp between Apr. 2008 and Mar. 2013;42 patients, among whom, were 35 ALL patients and 7 LBL patients, were treated with PEG-Asp as ifrst-line treatment;169 patients were treated with L-Asp as ifrst-line treatment (including 53 patients treated with L-Asp during induction protocol; with PEG-Asp during consolidate protocol). The clinical outcome and adverse reaction of PEG-Asp with L-Asp were observe and compared. Results: There were 35 ALL patients in PEG-Asp ifrst-line treatment group and the complete remission rate after 1 course of PEG-Asp was 97.1%,however, which was 83.3%of high risk ALL patients. The complete remission rate of 7 LBL patients of PEG-Asp ifrst-line treatment group was 57.1%. There was no signiifcant difference between 2 groups (P>0.05). Thirty-four patients relapsed including 5 patients of PEG-Asp ifrst-line treatment group, 16 patients of L-Asp ifrst-line treatment group and 13 patients treated with L-Asp during induction protocol and with PEG-Asp during consolidate protocol. Thirty-one patients died including 3, 18, 10 patients in 3 groups respectively. Twenty-two patients died of relapse, 4 died without remission, 5 died of complications. There was also no signiifcant difference between 2 groups (P>0.05). The incidence rates of adverse reactions were 47.6% and 63.3% respectively. Anaphylaxis, liver functions abnormalities, blood coagulation abnormalities, gastrointestinal reaction, hyperglycemia and pancreatitis were common in our patients. The incidence rate of anaphylaxis in PEG-Asp as ifrst-line treatment group was lower than other groups (P=0.03). But there was no signiifcant difference been observed in the incidence of other adverse reaction. Conclusion: The short-term efifcacy of PEG-Asp as the ifrst-line treatment in childhood leukemia and lymphoma was satisfactory and the incidence rate of anaphylaxis was lower. However, we will still pay much attention to adverse reaction monitoring of PEG-Asp.

Objective Optimal detection of deep hypothermic circulatory arrest (DHCA)-induced early brain injury is important but the effective technique is still not available in the present.The relationship between diffusion wcighted imaging (DW1) and histopathological changes in DHCA-induced piglet brain injury model were analyzed.Methods Eighteen pigs underwent deep hypothermic circulatory arrest and were divided into three groups:group A (n =6) served as control,only underwent anesthesia and thoracotomy,without extracorporeal circulation.Group B (n =6) served as underwent deep hypothermic circulatory arrest at 20 ℃ for 120 min,survived for 1 day.Group C (n =6) served as underwent deep hypothermic circulatory arrest at 20 ℃ for 120 min,survived for 2 days.Diffusion-weighted imaging and histopathology were used to study the brain injury.Results There were hematoxylin-eosin (+) and terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (+) cells in cerebral cortex and hippocampus.Hyperintensity was most evident in the cerebral cortex in group B and group C with diffusion-weighted imaging,but it was not seen in hippocampus in both groups.There were 5 and 6 piglets can be seen hyperintensity with diffusion-weighted imaging sequence in group B and group C respectively.Hyperintensity was also seen in T2WI sequence in 3 and 5 piglets in group B and group C respectively.Conclusion The study demonstrates the feasibility of diffusion-weighted imaging on evaluation of brain injury after deep hypothermic circulatory arrest and cerebral cortex was selectively vulnerable to cell injury.It is superior to conventional imaging.

Objective To explore the impact of chronic cough on children’s life quality, and to observe their life quality after drugs and psychological intervention. Methods One hundred 9 to 12 years old children with chronic cough were randomly selected. The drugs and psychological intervention were administrated. The children had been follow-up. The children’s quality of life was assessed by“Inventroy of Subjective Life Questionnaire”before and after treatment. Meanwhile 100 healthy children were randomly selected as a control group. Results With the prolonged treatment, the recovery rate and effective rate in children with chronic cough increased. Before the treatment, the scores of family life, peer interaction, self cognitive, experience of depression, experience of anxiety, cognitive and emotional component, and overall satisfaction were significantly lower in children with chronic cough than those in healthy children (P<0.05). After the treatment, the scores of family life, peer interaction, self cognitive, experience of depression, experience of anxiety, physical experience, cognitive and emotional component, and overall satisfaction were significantly improved in children with chronic cough (P<0.05), even the scores of physical experience and emotional component were significantly higher in children with chronic cough than those in healthy children (P<0.05). Conclusions The quality of life in children with chronic cough decline, however, drug and psychological intervention can improve their quality of life.

Four screening methods, colorimetric assay, blood-plate hemolysis method, surface tension activ- ity and oil spreading technique were introduced to isolate strains producing bio-demulsifiers from 6 different bacteria source samples. The results of various screening methods were evaluated in this paper. Seventeen demulsifying strains were obtained, which are qualified in demulsification test of kerosene model emulsions. Among them, 5 strains showed high demulsifying ability, achieving 70% plus demulsifying ratio within 24 hours. Petroleum-contaminated soil, excess sludge from biological process treating oilfield produced water and sludge from municipal wastewater treatment plant were the best among all tested sources. Due to the determination limit, the colorimetric assay and blood-plate hemolysis method are not competent to screen bio-demulsifiers strains. The measurement of surface tension and oil spreading method were easy but accu- rate methods to isolate bio-demulsifiers strains. Although demulsification test of model emulsion is an effec- tive technique to target strains with the capability of breaking emulsions, it is sophisticated and time-con- suming. Thus it is recommended to use surface tension and oil spreading methods in pre-screening and vali- date the results in demulsification test with kerosene model emulsions.

Objective We examined the in vivo effect of the antisense or/and decoy oligonucleotide of nuclear factor-?appa B (NF-?B) on balloon-injured smooth muscle cell proliferation and MMP-9 in the carotid artery of rats. Methods Sprague-Dawley rats underwent balloon-dilation injury of the left carotid artery. Rats were divided into 7 groups(n=18) and each group included 6 time points (6 h and 1,3,5,7,14 d)(n=3). Results The mean intima/media ratio increased significantly in sense group、scramble group and model group and reached the maximum at 7 d after rat injured carotid artery, compared with normal group, antisense group, decoy group and decoy plus antisense group(P

T,P=0.008; Genotype:P=0.031)of DISC1 gene were significantly associated with schizophrenia.The haplotypes constructed by these two markers were significantly associated with schizophrenia,such as AT(?2=7.065,P=0.008,OR=1.42,95%CI=1.10~1.83)and GA(?2=6.009,P=0.014,OR=0.80,95%CI=0.68~0.96).When the subjects examined with the positive and negative syndrome scale(PANSS),the risk haplotype AT was not significantly correlated with positive,negative,excitement,depression and cognitive impairment factors of PANSS. Conclusion:These findings provide further evidence for DISC1 as a predisposing gene involved in schizophrenia in the Chinese Han Population.However,no positive association is found between DISC1 polymorphisms with schizophrenia clinical symptoms.

Objective To investigate the clinical application of mobile ICU in long distance inter-hospital transportation of critically ill children.Methods The clinical data of 467 critically ill children admitted in the mobile ICU for long distance inter-hospital transportation during Jan 2011 to Dec 2013 were studied retrospectively.Results A total of 467 critically ill children were transported from 27 hospitals of the counties and cities around Nanning.Of these 467 cases,295 cases were male and 172 female,with ages from 29 days to 11 years(median age was 10 months) and weights from 2.5 to 40.0 kg(median weight was 8.3 kg).The transport distances were from 68 to 436 km(median distance was 157 km);the transport durations ranged from 1.5 to 13.0 h(median duration was 5.3 h),and the average pediatric clinical illness score was 83±10.Of these 107 cases(22.9%,107/467) who required first aid before transfer,63 cases(58.9%) were treated with endotracheal intubation while 26 cases(24.3%) with anti-shock therapy.All the 467 cases received sustained electrocardiographic,blood pressure,blood oxygen saturation monitoring and rehydration therapy for maintaining stable internal environment during the transportation,with 341 cases(73.0%) of them received sedative or analgesic treatment,185 cases(39.6%) received mechanical ventilation,15 cases(3.2%) received high doses of vascular active drugs.All the critically ill children were admitted to our Critical Care Department through the green channel.The vital signs improved significantly than those before transportation[heart rate:(143±19)times/min vs.(165±24)times/min;mean arterial pressure:(76±5)mmHg vs.(71±4)mmHg,1mmHg=0.133 kPa;SpO2:(95±2)% vs (92±2)%;pH:7.37±0.04 vs 7.34±0.03;lactate:(2.5±0.2)mmol/L vs (2.8±0.3) mmol/L].There were significant differences between before and after the transportation(P＜0.01,respectively).Conclusion Mobile ICU is propitious to treat the critically ill children energetically and effectively in long distance inter-hospital transportation and ensures the safety.It is worth promoting.