The subcellular localization and the resistance to fungal pathogen Gibberella fujikuroi of the protein encoded by Arabidopsis AtELHYPRP2 (EARLI1-LIKE HYBRID PROLINE-RICH PROTEIN 2, AT4G12500) were investigated using transgenic tobacco plants. The coding sequence of AtELHYPRP2 was amplified from genomic DNA of Col-0 ecotype. After restriction digestion, the PCR fragment was ligated into pCAMBIA1302 to produce a fusion expression vector, pCAMBIA1302-AtELHYPRP2-GFP. Then the recombinant plasmid was introduced into Agrobacterium tumefaciens strain LBA4404 and transgenic tobacco plants were regenerated and selected via leaf disc transformation method. RT-PCR and Western blotting analyses showed that AtELHYPRP2 expressed effectively in transgenic tobacco plants. Observation under laser confocal microscopy revealed that the green fluorescence of AtELHYPRP2-GFP fusion protein could overlap with the red fluorescence came from propidium iodide staining, indicating AtELHYPRP2 is localized to cell surface. Antimicrobial experiments exhibited that the constitutive expression of AtELHYPRP2 could enhance the resistance of tobacco to fungal pathogen G. fujikuroi and the infection sites could accumulate H2O2 obviously. The basal expression levels of PR1 and the systemic expression levels of PR1 and PR5 in transgenic tobacco plants were higher than that of the wild-type plants, suggesting AtELHYPRP2 may play a role in systemic acquired resistance.
Agrobacterium tumefaciens ; Arabidopsis ; Arabidopsis Proteins ; genetics ; Disease Resistance ; Gibberella ; pathogenicity ; Hydrogen Peroxide ; Plants, Genetically Modified ; microbiology ; Recombinant Fusion Proteins ; genetics ; Tobacco ; genetics ; microbiology

Objective:To observe the changes of glyeemia, urine protein, serum creatinine, blood urea nitrogen and glycosylated hemoglobin in diabetic nephropathy rats and treating effects of Xiaokekang. Methods: Streptozotocin (STZ) was abdominally administered and was feeded by high lipid diet to establish diabetic nephropathy model in rats. Animals were divided into three groups: model group, Xiaokekang treatment group and normal group. Changes in glycemia, serum lipids, serum creatinine, blood urea nitrogen were measured at the 8th, 12th and 16th week after STZ injection. Glycosylated hemoglobin was measured at the 16th weeks after STZ injection. Results: Glycemia, serum lipids, serum creatinine were higher at the 8th, 12th and 16th week compared with normal group. Serum creatinine was higher at the 12th and 16th week, and glycosylated hemoglobin was also highter than that of the normal group. Xiaokekang reduced these changes. Conclusion: Xiaokekang can reduce glycemia, serum lipids and protect renal function.

Objective:To explore the nursing knowledge of extracorporeal membrane oxygenation (ECMO) in cardiac surgery nurses and analyze its influencing factors, in order to provide a reference for improving the nursing ability of clinical cardiac surgery nurses.Methods:Totally 104 nurses were selected from the Department of Cardiac Surgery, the First Affiliated Hospital of Zhengzhou University from January 2017 to January 2018, and investigated with the self-designed questionnaire of ECMO-related nursing knowledge and attitude. The status quo and influencing factors of ECMO nursing knowledge in cardiac surgery nurses were analyzed.Results:For the content of ECMO-related nursing knowledge, the percentages of nurses giving the 100% correct answers to "bleeding, anticoagulation problems and nursing measures", "nursing measures of the circulatory system", and "management of the catheter" were higher, being 92.31%, 88.46%, and 84.61% respectively, while the dimension to which the percentage of nurses giving 100% correct answers was the lowest was "prevention and control of related nosocomial infections", which was only 65.38%. The total proportion of nurses who gave 100% correct answers was 79.81%. There was no statistically significant difference in ECMO-related nursing knowledge scores between nurses at different ages ( P>0.05) . The difference in ECMO-related nursing knowledge and attitude scores between nurses with different working years, positions, and educational backgrounds was statistically significant ( F/t=96.834, 12.014, 44.726; P<0.05) . Multiple linear regression analysis showed that 1-3 years of working and educational backgrounds were the influencing factors to the difference in ECMO nursing knowledge scores between cardiac surgery nurses ( P<0.05) , and two variables could account for 65.7% of the variance of ECMO-related nursing knowledge scores in cardiac surgery nurses ( R2=0.657, P<0.01) . Conclusions:Cardiac surgery nurses have a good grasp of ECMO-related nursing knowledge, and 1-3 years of working and educational backgrounds were the influencing factors its scores. Cardiac surgery nurses still need to strengthen learning and training in terms of aseptic technical operation practices and related prevention measures for hospital infection.