3.A molecular epidemiological study on human plague fulminant epidemic in Qinghai, 2004.
Zhi-zhen QI ; Er-hei DAI ; Dong-sheng ZHOU ; Yong-hai YANG ; Shou-hong YU ; Rui-xia DAI ; Hai-hong ZHAO ; Min LI ; Rui-fu YANG
Chinese Journal of Epidemiology 2006;27(4):316-318
OBJECTIVETo study the epidemiology of genotyping Yersinia pestis isolated in the fulminant epidemics of human plague in Qinghai province in 2004.
METHODSPrimer pairs targeting the twenty-three different identified regions (DFRs) were designed to detect the presence or deletion of each DFR in 13 strains of Yersinia pestis isolated from the fulminant epidemic of human plague in Qinghai province in 2004.
RESULTSThere were 4 genomovars, i.e. Genomovar 8, 10, 15 and 16 in the 13 strains of Yersinia pestis identified. The genomovar of all the strains of Yersinia pestis isolated from Nangqian county was Genomovar 10. Among the two strains of Yersinia pestis isolated from Wulan county, the genomovar of one strain was Genomovar 8 and the other was Genomovar 10. The genomovars of all the strains of Yersinia pestis isolated from Qilian, Qumalai and Chengduo county belonged to Genomovar 16.
CONCLUSIONIt was demonstrated that the genotyping of Yersinia pestis appeared to be a powerful tool for investigating human plague epidemics.
China ; epidemiology ; Disease Outbreaks ; Genotype ; Humans ; Molecular Epidemiology ; Plague ; epidemiology ; Yersinia pestis ; genetics ; isolation & purification
4.The challenge for allogeneic hematopoietic stem cell transplantation in acute leukemia/ myelodyplastic syndrom with TP53, TET2 or DNMT3A gene mutations
Tianjin Medical Journal 2018;46(8):837-841
Recently, much gene mutations have been detected in patients with acute leukemia or myelodysplastic
syndrome (MDS) using next-generation sequencing (NSG) technology. Some of them are proved to be important prognostic
markers. It has been showed that TP53, TET2 or DNMT3A gene mutations are associated with poor prognosis in acute
leukemia or MDS patients. The prognosis of these patients is poor with short remission and survival. Allogeneic
hematopoietic stem cell transplantation is the only way to cure these patients. However, the outcomes after transplantation
are inferior to those in patients without these mutations. The hypomethylating agents or immune targeting therapy might
improve their prognosis when combined with the present strategies. Here, the impact of TP53, TET2 and DNMT3A gene
mutations on the prognosis after chemotherapy or transplantation is reviewed.
5.Study on the intelligence quotient characteristics of mild iodine deficiency disorders children and sociocultural condition abnormal children
Jing, LI ; Xiao-cai, GAO ; Zi-jian, ZHENG ; Ya-le, GUO ; Rui-lin, LI ; Hong-xing, DAI ; Fu-chang, ZHANG
Chinese Journal of Endemiology 2008;27(3):280-283
Objective To investigate the intelligence standard for diagnose the sub-cretin children and children with mental retardation of socio-cultural type.Methods The full intelligence quotient(IQ),verbal intelligence quotient(VIQ)and performance intelligence quotient(PIQ)was tested by Wechsler scale(C-WISC)for mild iodine deficiency disordem children,children living in abnormal socio-cultural condition and normal children aged 7~14 years old in Qinba mountain area.The test results had been compared between the groups.Results There were no significant difference between psychomotor functioning well children and children living normal sociocuhural condition in VIQ,PIQ and full IQ(89.24±18.44 vs 90.75±17.58,87.58±15.78 vs 88.95±15.56,87.42±17.84 vs 89.02±17.18,t=1.14,1.19 and 1.24,respectively,all P>O.05).PIQ and full IQ were significantly lower in mild iodine deficiency disorders children than in children with abnormal socio-cultural background (65.81±10.22 vs 72.33±13.23,62.42±12.31 vs 68.13±14.54,t=3.26,2.55,P<0.01 or<0.05,respectively).But the VIQ was not significantly different between these two groups.The average difference of VIQ and PIQ among mild iodine deficiency disorders children wag-0.32 without significant difierence(t=0.28,P>0.05),however it was-2.91 among children under abnormal socio-cultural condition with significant difierenee(t=-3.59,P<0.01).Conclusions IQ for iodine deficiency disorders children is characterized by that VIQ is damaged in parallel with PIQ,while that in children under abnormal soeio-cuhural condition is marked by that VIQ is retarded more severely than PIQ,which ean be used as an intelligence standard for differentiating the sub-cretin children from children wjth socio-cuhural mental retardation.
6.Diffusion tensor tractography of language functional areas and fiber pathways in normal human brain
Xue-Jin SUN ; Jian-Ping DAI ; Hong-Yan CHEN ; Pei-Yi GAO ; Lin AI ; Sheng-Yong TIAN ; Rui-Lin PANG ;
Chinese Journal of Radiology 2001;0(02):-
0.05),the mean FA on the left was higher than the right(t=1.912,P
7.Up-regulation of transcription factors NF-E2, c-jun and c-fos of AP-1 family induced by Panax Notoginosides in hematopoietic cells.
Rui-Lan GAO ; Wei-Hong XU ; Xiao-Hong CHEN ; Xu-Dai QIAN ; Chao-Qun WU
Journal of Experimental Hematology 2004;12(1):16-19
To observe the effects of Panax Notoginosides (PNS) on up-regulation of AP-1 family transcription factors NF-E2, c-jun and c-fos for exploring intracellular signal pathway of PNS in hematopoietic cells, four human hematopoietic cells lines including myeloid HL-60, erythroid K562, megakaryoid CHRF-288 and Meg-01 were incubated in the presence of PNS for 14 days. The nuclear protein of cells were extracted and analyzed by Western blot with antibodies against NF-E2, c-fos and c-jun. Electrophoretic mobility shift assay (EMSA) was performed by using (32)P labeled AP-1 consensus oligonucleotide which contains binding site for NF-E2, c-jun and c-fos. The results showed that the transcription factors NF-E2, c-jun and c-fos of AP-1 family could be induced by PNS. Western blot demonstrated that the nuclear protein of both NF-E2 and c-jun in four cell lines treated by PNS were increased by 1.5-2.5- and 2.0-3.0-fold over untreated cells respectively. The c-fos protein in three cell lines of K562, CHRF-288 and Meg-01 was also elevated by 2.0-3.0-fold respectively, while c-fos protein in HL-60 cells was no detectable difference after PNS treatment. EMSA results in four cell lines indicated that AP-1 binding activity initiated by PNS was apparently elevated to form higher density band of AP-1-DNA complex. In conclusion, the intracellular transcription regulation initiated by PNS was involved in transcription factors NF-E2, c-jun and c-fos of AP-1 family members, which could play an important role in the up-regulation of genes expression related to proliferation and differentiation of hematopoietic cells.
DNA
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metabolism
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DNA-Binding Proteins
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genetics
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Erythroid-Specific DNA-Binding Factors
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Gene Expression Regulation
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drug effects
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Genes, fos
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Genes, jun
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Ginsenosides
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pharmacology
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HL-60 Cells
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Humans
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K562 Cells
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NF-E2 Transcription Factor
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NF-E2 Transcription Factor, p45 Subunit
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Panax
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Transcription Factor AP-1
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metabolism
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Transcription Factors
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genetics
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Up-Regulation
8.Expression of apoptosis-related proteins in the human bone marrow hematopoietic cells treated by Panax Notoginosides.
Xiao-Hong CHEN ; Rui-Lan GAO ; Zhi-Yin ZHEN ; Xu-Dai QIAN ; Wei-Hong XU
Journal of Experimental Hematology 2006;14(2):343-346
The study was aimed to investigate the action of Panax Notoginosides (PNS, extracted from notoginseng herb) on the expression of the apoptosis-related proteins (Daxx, Fas) and transcription factors (NFkB, c-Rel) in the hematopoietic cells and to explore the mechanisms of supporting cells to survive. The colony formation of CFU-GM and CFU-E in human bone marrow was assayed in the presence of various concentrations of PNS. The viability of cells was assayed by trypan blue and the changes of cell morphology were observed with microscope. The Annexin-V positive cells were detected by FCM. Three lineages of human myeloid HL-60, erythroid K562, megakaryoid CHRF-288 and Meg-01 cells were incubated in addition of PNS (10 mg/L) for 14 days. The nuclear or cytoplasm protein of cells was extracted and analyzed by Western blot with monoclonal antibodies against Daxx, Fas or NFkB, c-Rel. The results showed: (1) the proliferation on hematopoietic progenitor cells (CFU-GM and CFU-E) and four cell lines was promoted by PNS; (2) after the four cell lines were promoted by PNS and hungered through wiping off the sera, the viability of the four cell lines was high without significant morphological change and neither the detection of Annexin-V positive cells; (3) the expression of Daxx and Fas protein could be inhibited by PNS. Western Blot showed that Daxx in four cell lines treated by PNS were 33.3-61.5% lower than that in untreated controls. The Fas protein was also descended in three cell lines of K562, CHRF-288 and Meg-01 by 33.3-71.4% respectively, while Fas protein in HL-60 cells was no detectable difference after PNS treatment. (4) The transcription factors NFkB and c-Rel protein could be increased by PNS. The NFkB, c-Rel protein were also enhanced in three cell lines of K562, CHRF-288 and Meg-01 by (2.0-2.7) and (1.5-2.3)-fold respectively, while there were also no detectable difference in HL-60 cells after PNS treatment. It is concluded that PNS inhibites the expression of Daxx and Fas proteins, may decrease the apoptosis of the hematopoietic cells. The level of NFkB and c-Rel proteins can be enhanced by PNS, which not only stimulates the proliferation of cells, but also inhibits the activity of the waterfall of caspase and apoptosis of the hematopoietic cells. PNS may treat the disease with over-apoptosis of hematopoietic cells, as aplastic anemia.
Adaptor Proteins, Signal Transducing
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biosynthesis
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Apoptosis
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Apoptosis Regulatory Proteins
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biosynthesis
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Bone Marrow Cells
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cytology
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metabolism
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Cells, Cultured
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Fas Ligand Protein
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biosynthesis
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Ginsenosides
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pharmacology
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HL-60 Cells
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Hematopoietic Stem Cells
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cytology
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metabolism
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Humans
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K562 Cells
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NF-kappa B
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biosynthesis
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Nuclear Proteins
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biosynthesis
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Panax notoginseng
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chemistry
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fas Receptor
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biosynthesis
9.Epidemiologicai analysis of plague in Qinghai province from 2001 to 2010
Bai-qing, WEI ; Zu-yun, WANG ; Rong-jie, WEI ; Rui-xia, DAI ; Hai-hong, ZHAO ; Xiao-yan, YANG ; Hao-ming, XIONG ; You-quan, XIN ; Jun, LI
Chinese Journal of Endemiology 2011;30(5):521-523
Objective To explore the plague epidemical trend of nearly a 10 years data in Qinghai province to provide basis for making the prevention and control measures. Method The regional distribution and time distribution of animal and human plague, monitoring and plague foci of survey data in Qinghai from 2001 to 2010 were analyzed with Excel software 2003. Results In Qinghai province, a total of 167 strains of Yersinia pestis were isolated from infected animals and insects in 10 years. Yersinia pestis was mainly distributed in Wulan,Delinha, Geermu, and Tianjun, along the Qinghai-Xizang railway. Human plague was occurred every year from 2001 to 2010 except 2002, 2007, 2008, and 2010. In the 10 years, there were 37 plague cases and 16 of these cases died, the mortality was 43.24%. The plague cases were mainly distributed in Nangqian, Qumalai, Chenduo,Zhiduo, Xinghai, Tongde, Tianjun, Wulan and Qilian. And these cases were found mostly in the period from May to October, especially in the period from August to October. Major clinical type of the plague cases was lung-type (62.16%,23/37). Conclusions The plague epidemic situation in Qinghai province is still severe, animal plague occurred year after year, and human plague outbreaks occasionally. Monitoring and early warning in the key areas should be strengthened, and the comprehensive measures of plague prevention and control should be carried out to reduce the incidence and prevalence of plague.
10.Global gene expression of berberine against Yersiniapestis in vitro
Jing-ling, ZHANG ; Qun-hua, BAI ; Yan, JIA ; Xing-bi, DAI ; Hong, XIAO ; Ying-xiong, WANG ; Rui-fu, YANG ; Jing-fu, QIU
Chinese Journal of Endemiology 2008;27(6):606-608
Objective To investigate the antibacterial molecular mechanism of Traditional Chinese Medicine Coptis rhizome against Yersinia pestis(Y.pestis).Methods The method based on whole genome DNA micrnarray of Y.pestis was used.The minimal inhibition concentration(MIC)of berberine to Y.pestis was determined with liquid dilution method.Then gene expression profile of Y.pestis was performed after exposed to berberine at the concentration of 10×MIC for 30 minutes.Total RNA extracted and purified from Y.pestis and reverse-transcribed to cDNA,then labeled by Cy-dye.Finally,the labeled probes were hybridized to the microarray and the results were obtained by a laser scanner and analyzed by the SAM software.Results The gene expression profile data revealed that the response of Y.pestis to berberine was a global phenomenon.A total of 360 genes changed significantly.Among them,333 genes were up-regulated,27 down-regulated.These differentially expressed genes were further classified into 24 different functional categories based on the genomie annotation of Y.pestis CO92,in which the number of mainly related genes were 83,75 and 48,including cell envelop,unkown,transport/binding proteins functions.The 40 genes related to the metabolism were upregulated,which was a remarkable change.Conclusion Our results have revealed the general gene expression changes of Y.pestis in response to berberine and demonstrated the antibacterial molecular mechanism of the Coptis rhizome.The major mechanism of Y.pestis in response to berberine is the upregulation of genes related to the metabolism.