1.Characterization of Rhodiola crenulata/?-cyclodextrin complex
Lei REN ; Xiaohua NIU ; Yongping HAN ; Chen MA ; Xuewei SONG
Chinese Traditional Patent Medicine 1992;0(10):-
AIM:To characterize the inclusion complex of volatile oil of Rhodiola crenulata/?-cyclodextrin. METHODS: Some analytical methods,such as DTA,IR,GC,TLC were apllied to the investigation before and after the inclusion. RESULTS: The difference between the inclusion and physical mixture in differential thermal(analysis,) infrared spectra,gas chromatogram and thin layer chromatogram. CONCLUSION: The inclusion of Rhodiola crenulata volatile oil has the characteristic of intramolecular inclusion.
2.In vitro display technologies.
Song YAN ; Yi ZHANG ; Hongli LU ; Xuewei DONG ; Chao TANG ; Jun MU
Journal of Biomedical Engineering 2009;26(6):1367-1371
The application of in vitro selection method to isolate nucleic acids, peptides and proteins according to their functions has been studied intensively in recent years. In vitro display technologies are not limited by cellular transformation efficiencies; thus, very large libraries of up to 10(13)-10(14) members can be built. The most popular in vitro display technologies are ribosome display and mRNA display; ribosome display achieves the mRNA-ribosome-nascent peptide complexes by stalling the translating ribosome in an in vitro translation reaction. In mRNA display, the mRNA-protein complex is achieved by binding the two macromolecules through a small adaptor molecule, typically puromycin; these mRNA-peptide fusions can then be purified and subjected to in vitro selection. In vitro display technologies provide a different approach to the in vitro selection and directed evolution of peptides and proteins. This review focuses on the principle and method of ribosome display and mRNA display technologies, and discusses their applications.
Animals
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Directed Molecular Evolution
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Gene Library
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Humans
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Peptide Library
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Protein Interaction Mapping
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methods
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RNA, Messenger
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chemistry
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genetics
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Ribosomes
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chemistry
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genetics
3.Expressions of MDR-1 and P-gp in human nasopharyngeal squamous cell carcinoma CNE1 cell line after X-ray exposure
Ting HUANG ; Xuewei SONG ; Shufen AN ; Zhibin WANG ; Hehe LIAO
Journal of International Oncology 2018;45(6):321-324
Objective To examine the expressions of multidrug resistance gene (MDR)-1 and P-glycoprotein (P-gp) in nasopharyngeal squamous cell carcinoma CNE1 cell line before and after X-ray exposure.Methods CNE1 cells were exposed to X-ray.After the irradiation,the CNE1 cells were cultured for 24 hours and tested.The mRNA expressions of MDR-1 in CNE1 cells were measured by semi-quantitative real-time polymerase chain reaction (RT-PCR) before and after X-ray exposure,and the protein expressions of P-gp in CNE1 cells were detected by Western blotting.The protein expressions of P-gp in CNE1 cells were observed by confocal microscope before and after X-ray exposure.Results The results of RT-PCR showed that the absorbance (A) values of MDR-1 mRNA in CNE1 cells were 0.17 ±0.01 and 0.34 ±0.03 before and after irradiation,and the difference was statistically significant (t =16.541,P < 0.001).The results of Western blotting showed that the A values of P-gp protein in CNE1 cells were 0.02 ± 0.01 and 0.04 ± 0.01,and the difference was statistically significant (t =4.612,P =0.016).The green fluorescence intensity of P-gp protein in CNE1 cells after X-ray irradiation was higher than that before X-ray irradiation by confocal microscope.Conclusion X-ray irradiation can cause the high expressions of MDR-1 and P-gp in CNE1 cells,suggesting that X-ray irradiation can induce the occurrence of multidrug resistance in CNE1 cells.
4.Correlation between emotional intelligence and self control in patients with early depressive disorder
Xuejiao BAI ; Liping SONG ; Xingxin HE ; Xuewei DUAN ; Mengjiao WANG ; Hui MENG
Chinese Journal of Modern Nursing 2016;22(21):2961-2965
Objective To investigate the correlation between emotional intelligence and self control in adult patients with early depressive disorder .Methods From September 2015 to February 2016 , a total of 61 adult patients with early depressive disorder were selected by convenience sampling and were surveyed by questionnaires of Emotional Intelligence Scale ( EIS) and self control scale of depression .Results Total scores of emotional intelligence in patients with early depressive disorder were (113.61 ±16.60), with the highest score of emotional use , and the lowest of self management .Emotional intelligence had a significantly positive correlation with total score of self control of depression ( r =0.369, P <0.01 ).Dimensions in emotional intelligence , like emotional perception , self management and emotion use , were positively correlated with self control of depression ( P<0.05 ) .Conclusions For adult patients with early depressive disorder , emotional intelligence has a significantly correlation with self control of depression .Nurses in department of psychiatry are thus reminded to take effective educational measures to improve the patients ′emotional intelligence , so as to improve emotional intelligence and self control abilities of patients with depressive disorder .
5.Research progress in technologies for on-site monitoring and evaluation of fatigue during military operations
Mingxiao SONG ; Lijun FAN ; Xuewei CHEN ; Libin MA ; Jiangbei CAO ; Jing WANG
Military Medical Sciences 2024;48(2):143-147
The accumulation of fatigue during military operations may lead to decreased operational efficiency and non-combat attrition,which can impact combat effectiveness.On-site monitoring and evaluation of fatigue during military operations,as an important means to keep track of military operations and bring about quick changes in training,underlie the combat effectiveness of military personnel.Focusing on the on-site monitoring and evaluation methods of fatigue during military operations,this paper reviews the determinants of such fatigue as well as on-site monitoring and comprehensive evaluation methods so as to provide reference for accurate and efficient evaluation of fatigue during military operations and for early warning of such fatigue.
6.Evaluation of safety of two inactivated COVID-19 vaccines in a large-scale emergency use
Zhongnan YANG ; Yunya ZHAO ; Lu LI ; Huidi GAO ; Qi CAI ; Xiaoxia SUN ; Fusheng ZHANG ; Jinfeng SU ; Yinan ZHANG ; Xiang SHU ; Xuewei WANG ; Yunkai YANG ; Yuntao ZHANG ; Song ZHOU ; Xiaoming YANG
Chinese Journal of Epidemiology 2021;42(6):977-982
Objective:To evaluate the safety of two inactivated COVID-19 vaccines in a large-scale emergency use.Methods:Based on the "Vaccination Information Collection System", the incidence data of adverse reactions in the population vaccinated with the inactivated COVID-19 vaccines developed by Beijing Institute of Biological Products Co., Ltd and Wuhan Institute of Biological Products Co., Ltd, respectively, in emergency use were collected, and the relevant information were analyzed with descriptive epidemiological and statistical methods.Results:By December 1, 2020, the vaccination information of 519 543 individuals had been collected. The overall incidence rate of adverse reactions was 1.06%, the incidence rate of systemic adverse reactions was 0.69% and the incidence rate of local adverse reactions was 0.37%. The main systemic adverse reactions included fatigue, headache, fever, cough and loss of appetite with the incidence rates of 0.21%, 0.14%, 0.06%, 0.05% and 0.05%, respectively; the main local adverse reactions were injection site pain and injection site swelling with the incidence rates of 0.24% and 0.05%, respectively.Conclusion:The two inactivated COVID-19 vaccines by Beijing Institute of Biological Products Co., Ltd and Wuhan Institute of Biological Products Co., Ltd showed that in the large-scale emergency use, the incidence rate of general reactions was low and no serious adverse reactions were observed after the vaccinations, demonstrating that the vaccines have good safety.