1.Detection of genotype and phenotype in 11 vancomycin-resistant enterococci
Chinese Journal of Laboratory Medicine 2001;0(04):-
Objective To detect the phenotype and genotype of 11 vancomycin-resistant enterococci(VRE).Methods Disk diffusion test,microdilution broth method,VITEK-2 and Etest were used to determin the susceptibility of 11 VRE to vancomycin and teicoplanin. MIC to 10 antimicrobial agents were determined with microdiluton broth method. vanA, vanB ,vanC_1, vanC_2 were detected with multiplex PCR and were further confirmed by DNA sequencing. TEM, tetM,ermB,aac(6′)/aph(2′′),ant(6)- I,aph(3′)-Ⅲ were detected with PCR.Results Susceptibilities of 11 VRE to vancomycin and teicoplanin were different in four vitro susceptibility testing methods. VRE showed resistance to erythromycin(9/11),ciprfloxacin(7/11),levofloxacin(7/11),rifampin(8/11) and chloramphenicol(7/11). HLGR and HLSR is 10/11 and 9/11 respectively. 1 VanA,4 VanB,5 VanC_1 and 1 VanC_2 were detected and their phenotypes confirmed to the genotypes. High rate of TEM(8/11), tetM(6/11), ermB(7/11), aac(6′)/aph(2′′)(7/11), ant(6)- I(5/11) and aph(3′)-III(9/11) were detected in 11 VRE.Conclusions VRE screening test and the determination of MIC are reliable in finding VRE. PCR is precise and specific in the testing and confirmation of VRE. The high rates of drug resistance genes showed the complicated mechanisms of drug resistance in VRE.
2.Effective acupoints for bulbar paralysis by professor GAO Weibin.
Chinese Acupuncture & Moxibustion 2016;36(4):402-404
Professor GAO Weibin academically advocates, based on basic theory of TCM and theories of different schools, modern science technology should be used for the methods and principles of acupuncture and Chinese medicine for neuropathy, so as to explore and summarize the rules, characteristics and advantages of TCM for nervous system disease, especially bulbar paralysis. During the treatment of bulbar paralysis, professor GAO creatively proposes the effective acupuncture points such as Gongxue, Tunyan-1, Tunyan-2, Fayin, Tiyan and Zhifanliu from the aspects of neuroanatomy, and analyzes their anatomical structure and action mechanism.
Acupuncture Points
;
Acupuncture Therapy
;
history
;
Bulbar Palsy, Progressive
;
history
;
therapy
;
China
;
History, 20th Century
;
History, 21st Century
;
Humans
3.Research progress on the relationship between metabolism related fatty liver disease and chronic hepatitis C
Clinical Medicine of China 2021;37(2):180-184
Metabolic related fatty liver disease(MAFLD) is a kind of fatty liver disease caused by metabolic dysfunction closely related to insulin resistance and genetic susceptibility, also known as nonalcoholic fatty liver disease (NAFLD). Chronic hepatitis C (CHC) is a worldwide curable viral hepatitis caused by hepatitis C virus (HCV) infection.If MAFLD is combined with CHC, CHC can lead to insulin resistance, increase the oxidative stress of hepatocytes, accelerate the steatosis of hepatocytes, and affect the therapeutic effect of MAFLD.
5.Construction of a full-length cDNA clone of a live attenuated vaccine strain against Japanese encephalitis virus and preliminary study of expressing exogenous gene.
Bing HU ; Shuang YANG ; Zhi-zheng FANG
Chinese Journal of Virology 2014;30(6):652-660
This study aimed to construct full-length cDNA clones of the Japanese encephalitis virus (JEV). SA14-14-2 strain and discuss the feasibility of constructing chimeric viruses for exogenous gene expression based on the JEV genetic skeleton. Long-fragment RT-PCR techniques were applied to amplify JEV cD-NAs, and two amplified fragments with corresponding restriction endonuclease sites at both ends were cloned into the pACYC184 vector sequentially. Using standard molecular techniques, the enhanced green fluorescent protein (EGFP) gene was inserted into the 3' non-coding region of JEV as a reporter gene. After in vitro transcription and transfection procedures, wild-type JEV and chimeric JEV that expressed the EGFP as the reporter gene were successfully rescued. The recovered viruses were characterized by RT-PCR, plaque assays, and direct fluorescence microscopy. After six serial passage generations, the stability of the recovered viruses were studied in terms of virus growth characteristics and structural gene expression. The results showed that cDNA clones of rJEV and rJEV-EGFP were successfully constructed and rescued in BHK-21 cells after in vitro transcription and transfection. Each generation of the recovered viruses was stable and the chimeric virus rJEV-EGFP could stably express EGFP. The findings of this study indicate that both rJEV and rJEV-EGFP could be constructed and rescued in BHK-21 cells, and the JEV SA14-14-2 strain could be obtained as a viral vector to express foreign genes.
Cloning, Molecular
;
DNA, Complementary
;
genetics
;
metabolism
;
Encephalitis Virus, Japanese
;
genetics
;
metabolism
;
Encephalitis, Japanese
;
virology
;
Gene Expression
;
Genetic Vectors
;
genetics
;
metabolism
;
Green Fluorescent Proteins
;
genetics
;
metabolism
;
Humans
;
Vaccines, Attenuated
;
genetics
;
metabolism
;
Viral Vaccines
;
genetics
;
metabolism
6.Severe hypertriglyceridemia caused by autoimmune disease:Case summary and literature review
Shuang ZHENG ; Xingxing REN ; Yaomin HU
Chinese Journal of Endocrinology and Metabolism 2016;32(6):523-526
[Summary]_ Severe hypertriglyceridemia is the third common cause of acute pancreatitis following after alcohol abuse and cholelithiasis. Moreover, it is also an important risk factor of cardiovascular events. However, the cases of severe hypertriglyceridemia caused by autoimmune disease were rare in clinical, which would bring the difficulty for diagnosis and treatment. A better understanding of the clinical characteristics, possible pathogenesis, and corresponding therapy of the disease would be helpful, which would reduce the risk of complications, and finally improve both the survival rate as well as quality of life of these patients.
7.Pedicle screw fixation for thoracic and lumbar diseases: a comparative analysis and prospects
Zheng LIU ; Hongwei LI ; Shuang WANG
Chinese Journal of Tissue Engineering Research 2017;21(19):3102-3107
BACKGROUND: Pedicle screw fixation is mainly used to treat thoracolumbar disorders, and accurate placement is the key to success; thereafter, how to improve the accuracy of placement and reduce the secondary nailing is an issue of concern.OBJECTIVE: To compare the advantages and disadvantages of various pedicle screw placement methods and their application value.METHODS: CNKI and PubMed databases were retrieved for clinical research concerning the pedicle screw fixation for thoracolumbar disorders published before May 2016 using the keywords of pedicle screw fixation, free-hand technique,3D-printing technology, computer navigation technology, clinical application prospect in English and Chinese,respectively. The repetitive literatures were excluded, and the advanced pedicle screw technologies were collected and evaluated in views of feasibility, universality and practicability.RESULTS AND CONCLUSION: (1) Computer-assisted navigation system and three-dimensional printing technology are the focus of research, but only applied in the treatment of pedicle congenital malformations or complicated cases. (2) Free-hand technique is still the most widely used, which is the essential skills that surgeons must master. (3) Traditional technology is still the mainstream in clinic, so improved preoperative planning, and individualized scheme are needed.
8.Influence mechanism and intervention strategies of psychological resilience in patients with cerebral infarction
Ankang LU ; Heying ZHENG ; Shuang WU ; Guizhi CHEN
Chongqing Medicine 2017;46(10):1370-1372
Objective To analyze the effect of self efficiency,social support and coping style on the psychological resilience.Methods A total of 386 patients with cerebral infarction in a grade 3A hospital of Tangshan City were served as the subjects.The resilience scale,self efficiency scale,social support scale and medical coping questionnaire were taken as the survey tools.The Pearson correlation analysis,multiple linear regression model and structure equation model(SEM) were applied.Results The resilience score was (59.72 ±12.17) points,the resilience was positively correlated with the self efficiency,social support,facing coping style and avoidance coping style(P<0.01),and negatively correlated with the surrender coping style(P<0.01).The total efficiency coefficients of self efficiency sensation,subjective support,facing coping style and surrender coping style for affecting the resilience were 0.720,0.264,0.121 and-0.092 respectively.Conclusion Self efficiency,social support and coping style have significant influences on the psychological resilience.
9.Current status ofevaluation methods of core competences of Master of Nursing Specialist postgraduates
Shuya LI ; Shuang LIU ; Fangyuan ZHANG ; Jian WANG ; Zheng LI
Chinese Journal of Practical Nursing 2017;33(4):312-316
Based oncompetence-basedphilosophy of education, core competences of Master of Nursing Specialist (MNS) postgraduates serve as a benchmark for the education quality. Furthermore, the evaluation of core competences is a key link. Our research mainly summarizes the evaluation methods of core competences of MNS at home and abroad, thus providing suggestions to the improvement of domestic core competences evaluation methods of MNS.
10.Comparison of efficacy of three kinds of neurolytic celiac plexus block in patients with upper abdominal cancer pain
Pisheng QU ; Shuang FU ; Tieshan ZHANG ; Fan TAO ; Hanguang ZHENG
Chinese Journal of Anesthesiology 2015;35(1):60-63
Objective To compare the efficacy of three kinds of neurolytic celiac plexus block (NCPB) in the patients with upper abdominal cancer pain.Methods Sixty-seven patients of both sexes,with upper abdominal cancer,aged 45-64 yr,weighing 52-69 kg,were randomly divided into 3 groups using a random number table:single-needle NCPB using crura of diaphragm space approach group (group S,n =23),double-needle NCPB via an anterior and posterior crura of diaphragm space approach group (group D,n =22),and continuous NCPB via crura of diaphragm space approach group (group C,n =22).In S and D groups,NCPB was performed with single injection of anhydrous alcohol 25-30 ml after CT-guided successful single and double punctures,respectively.In group C,a catheter was inserted into the crura of diaphragm space and then anhydrous alcohol 25-30 ml was injected via the catheter once a day for 3 consecutive days to perform NCPB.Before treatment,at 1 week after treatment,1,2,4 and 6 months after treatment,the daily consumption of morphine and VAS score were recorded.The therapeutic efficacy was evaluated using VAS weighted value calculation.The development of adverse effects such as diarrhea,hypotension,dysuria and damage to nerves was recorded.Results Compared with S or D groups,the daily consumption of morphine was significantly decreased at 4-6 months after treatment,the rate of effective treatment was increased at 4-6 months after treatment,and the incidence of hypotension was decreased in group C.The incidence of diarrhea was significantly higher in D and C groups than in group S.Conclusion For the patients with upper abdominal cancer pain,continuous NCPB via crura ofdiaphragm space approach provides perfect efficacy with fewer adverse reactions,and the efficacy is better than that of single-needle NCPB using crura of diaphragm space approach or double-needle NCPB via an anterior and posterior crura of diaphragm space approach.