1.On the Service Orientation of Medical Psychology
Chinese Medical Ethics 2015;(3):460-462
Currently , social demands from basic education field , medical humanities education , the main threat to the national health service for medical psychology in our country is urgent and extensive .So, service di-rection of medical psychology also is shown as:medical psychology workers should play a role in basic education , in cultivating medical students and medical workers humanity take responsibility , and actively explore in residents′lifestyle changes .
2.Drug-resistant Genes Analysis of All-resistant Acinetobacter baumannii
Zhengqing LOU ; Yan QI ; Li XU
Chinese Journal of Nosocomiology 2006;0(05):-
OBJECTIVE To investigate the prevalence of drug-resistant genes in seventeen strains of all-resistant Acinetobacter baumannii.METHODS Microdilute tests were performed to detect the susceptibility of 17 A.baumannii strains to 16 kinds of antimicrobial agents and antimicrobial-resistant genes were detected by PCR methods.RESULTS Seventeen A.baumannii strains showed all-drug resistance.Genes of TEM-1,OXA-23,OXA-27,gyrA and AmpC were detected in all 17 strains of A.baumannii.The positive rates of aacC31 and PER-1 genes were 11.8% and 52.9%,respectively.CONCLUSIONS A.baumannii with multi-resistant genes of our hospital carries TEM-1,OXA-23,OXA-27,gyrA,AmpC,aacC1 and PER-1.
3.EXPRESSION OF GFAP IN RAT HYPOTHALAMUS AFTER DIFFERENT TEMPERATURE HEAT STRESSES
Zhengqing ZHAO ; Junhua LIU ; Hui LEI ; Li DUAN ; Rong CAO ; Qi WAN ; Gang ZHAO ; Zhiren RAO
Acta Anatomica Sinica 2002;0(05):-
Objective To investigate the expression of GFAP in rat hypothalamus after acute heat stress. Methods The rats were caged in a experimental incubator for 60 minutes,the temperature within the incubator was adjusted to 24℃,34℃,38.5℃ or 42℃,the humidity was 60%.Single anti-GFAP immunohistochemical(ABC) method and anti-Fos and GFAP double immunohistochemical method were used to observe the expression of GFAP in hypothalamus in different ambient temperatures after heat stress. Results The GFAP-positive cells were rare in hypothalamus at 24℃,however it was increased in many nuclei(anterior hypothalamic area,paraventricular nucleus,arcuate nucleus,suprachiasmatic nucleus and supraoptic nucleus)at 34℃ and peaked when ambient temperature was 38.5℃,and then decreased.However,Fos/GFAP-IR double labelled astrocytes were observed at 42℃.Conclusion Astrocytes participate in the pathophysiological process of heat stress.
4.Drug resistance and molecular epidemiological analysis of KPC-producing Escherichia coli strains isolated in Hangzhou
Yuying WANG ; Yan QI ; Xuejing YANG ; Yanfei WANG ; Yan JIANG ; Zhengqing LOU ; Yunsong YU
Chinese Journal of Microbiology and Immunology 2016;36(5):359-363
Objective To analyze the epidemiological characteristics of Klebsiella pneumoniae car-bapenemase(KPC)-producing Escherichia coli(E. coli)strains isolated in Hangzhou,China. Methods A total of 25 KPC-producing Escherichia coli strains were collected from four hospitals in Hangzhou from July 2012 to January 2014. Antibiotic susceptibility of the isolates to 22 common antimicrobial agents was deter-mined by using Kirby-Bauer(K-B)disk diffusion method. PCR analysis and gene sequencing were used for bla KPC gene screening. The modified Hodge test was performed to detect the production of carbapenemase. Pulsed-field gel electrophoresis(PFGE)and multi-locus sequence typing(MLST)were used for homology analysis. Results All of the 25 clinical isolates were confirmed to be KPC-producing E. coli strains,harbo-ring the blaKPC-2 gene. These KPC-producing isolates showed high drug resistance rates and were resistant to almost all β-lactam antibiotics. PFGE typing classified the 25 isolates into three main homologous clone groups,including clone group A(4 isolates),clone group B(5 isolates)and clone group C(2 isolates), and some single clones(14 isolates). MLST typing classified the isolates into eight ST types,including ST131(14 isolates),ST167(3 isolates),ST2003(3 isolates),ST410(1 isolate),ST457(1 isolate), ST1463(1 isolate),STnew1(1 isolate)and STnew2(1 isolate). The typing results of PFGE and MLST were consistent with each other. Conclusion The prevalent KPC-producing E. coli strains in Hangzhou, China were ST131 type,which were resistant to multiple antibiotics and had been detected in several hospi-tals. The epidemic of KPC-producing E. coli strain often occurred at some special wards,such as Intensive Care Unit(ICU)and emergency ICU.
5.Emergence of Klebsiella pneumoniae carbapenemase-producing Escherichia coli sequence type 131 in Hangzhou, China.
Zhengqing LOU ; Yan QI ; Xiang QIAN ; Wei YANG ; Zeqing WEI
Chinese Medical Journal 2014;127(3):528-531
BACKGROUNDKlebsiella pneumoniae carbapenemase (KPC)-producing Escherichia (E.) coli has been reported in China since 2008. However, there is no information about the molecular epidemiology of KPC-producing E. coli in China. In this study, we aimed to investigate the sequence type (ST) and characteristics of KPC-producing E. coli isolates in China.
METHODSThree carbapenem-resistant isolates of E. coli (E1, E2, and E3) from one teaching hospital in Hangzhou covering a one year period were analyzed. Antibiotic susceptibility was determined by Etest. Pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) were used for epidemiological analysis. The genetic structure around blaKPC, the major plasmid incompatibility typing, and the identification of β-lactamase gene types were performed by PCR and the positive products were subsequently sequenced. Plasmids were analyzed by transformation, restriction, and Southern blotting.
RESULTSPFGE demonstrated that patterns of isolates E1 and E2 were clonally-related and designated as patterns A1 and A2; pattern of isolate E3 was different and designated as pattern B. MLST analysis showed that the three isolates displayed one common sequence type ST131. The identification of bla gene types by PCR and sequencing showed that blaKPC-2, blaCTX-M-14, and blaTEM-1 were detected in all three isolates. All three isolates carried a KPC-2-encoding plasmid of the IncN replicon. Plasmid analysis and hybridization experiments showed that the isolates were found simultaneously to carry two or four plasmids. The blaKPC-2 gene in E1 and E2 was located in a plasmid with size of ca. 50 kb. However, the blaKPC-2 gene in E3 was located in a plasmid with size of ca. 130 kb.
CONCLUSIONSE. coli ST131 with KPC-2 β-lactamase has emerged in China, which enlarges the geographical area where the ST131 KPC-producing E. coli strains have diffused.
Bacterial Proteins ; genetics ; China ; Electrophoresis, Gel, Pulsed-Field ; Escherichia coli ; enzymology ; genetics ; Klebsiella pneumoniae ; enzymology ; Multilocus Sequence Typing ; beta-Lactamases ; genetics
6.Discussion on the standard of clinical genetic testing report and the consensus of gene testing industry.
Hui HUANG ; pengzhiyu@bgi.com. ; Yiping SHEN ; Weihong GU ; Wei WANG ; Yiming WANG ; Ming QI ; Jun SHEN ; Zhengqing QIU ; Shihui YU ; Zaiwei ZHOU ; Baixue CHEN ; Lei CHEN ; Yundi CHEN ; Huanhuan CUI ; Juan DU ; Yong GAO ; Yiran GUO ; Chanjuan HU ; Liang HU ; Yi HUANG ; Peipei LI ; Xiaorong LI ; Xiurong LI ; Yaping LIU ; Jie LU ; Duan MA ; Yongyi MA ; Mei PENG ; Fang SONG ; Hongye SUN ; Liang WANG ; Dawei WANG ; Jingmin WANG ; Ling WANG ; Zhengyuan WANG ; Zhinong WANG ; Jihong WU ; Jing WU ; Jian WU ; Yimin XU ; Hong YAO ; Dongsheng YANG ; Xu YANG ; Yanling YANG ; Ying ZHANG ; Yulin ZHOU ; Baosheng ZHU ; Sicong ZENG ; Zhiyu PENG ; Shangzhi HUANG
Chinese Journal of Medical Genetics 2018;35(1):1-8
The widespread application of next generation sequencing (NGS) in clinical settings has enabled testing, diagnosis, treatment and prevention of genetic diseases. However, many issues have arisen in the meanwhile. One of the most pressing issues is the lack of standards for reporting genetic test results across different service providers. The First Forum on Standards and Specifications for Clinical Genetic Testing was held to address the issue in Shenzhen, China, on October 28, 2017. Participants, including geneticists, clinicians, and representatives of genetic testing service providers, discussed problems of clinical genetic testing services across in China and shared opinions on principles, challenges, and standards for reporting clinical genetic test results. Here we summarize expert opinions presented at the seminar and report the consensus, which will serve as a basis for the development of standards and guidelines for reporting of clinical genetic testing results, in order to promote the standardization and regulation of genetic testing services in China.