1.HPLC digitized fingerprints of Radix et rhizoma seu caulis Acanthopanacis senticosi
Guoxiang SUN ; Xiuming YU ; Kaishun BI
Chinese Traditional Patent Medicine 1992;0(09):-
AIM: To establish a novel method for the overall quality control of Radix et rhizoma seu caulis Acanthopanacis senticosi on the ground of HPLC digitized fingerprint.METHODS: The chromatographic fingerprints were obtained by injecting 10 ?L of the sample solution each time on a Century SIL BDS column(20 cm?4.6 mm,5 ?m) with the gradient elution solvent system composed of 1% acetate acid water and 1% acetate acid acetonitrile.The flow rate was 1 mL/min,the colunm temperature was maintained at(30?0.15)℃ and the detection wavelength was set at 265 nm. RESULTS: 31 co-possessing peaks were selected as the fingerprint peaks of Radix et rhizoma seu caulis Acanthopanacis senticosi and the similarities between the chromatographic fingerprints and the herbal drugs were calculated taking chlorogenic acid peak as the reference peak.The chromatographic fingerprints also were evaluated by the chromatographic fingerprint index(F),the relative index(Fr). CONCLUSION: This method with good precision and reproducibility can be useful for the quality control of Radix et rhizoma seu caulis Acanthopanacis senticosi.
2.HPLC fingerprints of Rhizoma anemarrhenae based on 4 kinds of similarities
Guoxiang SUN ; Hong JI ; Xiuming YU
Chinese Traditional Patent Medicine 1992;0(01):-
AIM: The method of the double qualitative similarities and the double quantitative similarities was carried out for the evaluation of the chromatographic fingerprints and applied to HPLC fingerprints of Rhizoma anemarrhenae. METHODS: The chromatographic fingerprints were obtained by injecting 5 ?L of the sample solution each time on a CenturySIL C_(18) BDS column(20 cm?4.6 mm,5 ?m) with the gradient elution solvent system composed of 1% acetic acid-water and 1% acetic acid-acetonitrile.The column temperature was maintained at(30?0.15) ℃ and the detection wavelength was set at 265 nm.The chromatographic fingerprints were evaluated by the normalized similarity S_F and normalizing similarity S′_F and the projecting similarity C% and quautitative similarity P%, changes in characteristics were investigated in the cases of big peaks-free and small peaks-free respectively. RESULTS: 21 co-possessing peaks were selected as the fingerprint peaks of Rhizoma anernarrhenae by choosing rutin peak as the reference peak.S_F could clearly reflect the chemical constituent distribution,and C% could reflect the total contents of the sample,but both of them were seriously influenced by the big peaks and could not reflect the missing of small peaks.S′_F and P% were equivalent weight to all fingerprint peaks,and they could reflect sensitively the small peaks drop-out. CONCLUSION: The double qualitative similarities and the double quantitative similarities are composed of S_F,S′_F,C% and P%,so the changes or lacks of both big peaks and small peaks can be punctually simultaneously monitored to be a novel method for evaluating fingerprints.The HPLC fingerprints can be useful in the quality control of Rhizoma anemarrhenae.
3.Effect of Bacillus Calmette-guerin vaccine on apoptosis of lymphocytes in athmatic BALA/c mice
Yianliang YU ; Xiuming SUN ; Cuili LI
Chinese Journal of Respiratory and Critical Care Medicine 2003;0(02):-
Objective To explore the effect of Bacillus Calmette guerin vaccine (BCG) on apoptosis of lymphocytes in asthmatic BALC/c mice Methods Asthmatic BALB/c mice model established by inhaling ovalbumin was treated by BCG Lymphocytes apopotic index and DNA damage index were determined by comet method and xylidine method,respectively Results Apoptosis index and DNA damage percentage of peripheral blood and BALF lymphocytes were significantly elevated after BCG treatment( P
4.The clinical distribution and drug resistance monitoring of Streptococcus pneumonia
Peisong LIANG ; Geqin SUN ; Xiuming ZHANG ; Fuda HANG ; Lanfen LU
International Journal of Laboratory Medicine 2015;(8):1045-1046
Objective To understand the clinical distribution and monitoring the change of resistance of Streptococcus pneumoni‐ae ,effective for clinical anti infection to provide reference .Methods Using VITEK 2 Compact to analyze the bacteria identification and drug sensitivity data ,and using WHONET5 .3 software and SPSS13 .0 software for statistical analysis .Results From 2008 to 2013 ,588 strains of Streptococcus pneumoniae were isolated ,mainly distributed in the intensive care unit (ICU) ,followed by respir‐atory department of internal medicine ,general pediatrics ;mainly from sputum samples ,followed by the throat swabs and blood samples .The highest resistant rate was erythromycin ,followed by penicillin and cotrimoxazole ;Streptococcus pneumoniae remains sensitive to ofloxacin ,levofloxacin ,vancomycin ,linezolid ,chloramphenicol .Conclusion The resistance rate of Streptococcus pneu‐moniae was rising ,and that great attention should be paid to the bacterial drug resistance so as to reasonably use a antibiotics based on the result of drug susceptibility testing .
5.Drug resistance analysis of Neisseria gonorrhoeae and its related drug resistant gene detection
Guishan CHEN ; Chaoping LIN ; Xiuming ZHANG ; Geqin SUN
International Journal of Laboratory Medicine 2014;(20):2726-2728
Objective To understand the drug resistance of Neisseria gonorrhoeae in Foshan area and to detect the related drug resistant gene mutation situation.Methods 57 strains of Neisseria gonorrhoeae were collected.The drug susceptibility test was per-formed by adopting the agar dilution method.The related drug resistance genes were amplified by PCR and the PCR product se-quencing results were performed the homological searching in GenBank by the BLAST algorithm.Results The sensitive rates of Neisseria gonorrhoeae to penicillin,tetracycline,ciprooxacin,ceftriaxone and spectinomycin were 0.0%,8.8%,7.0%,61.4% and 100.0%,respectively.The rates of beta lactamase-producing Neisseria gonorrhoeae and tetracycline resistant Neisseria gonorrhoeae were 35.1% and 56.1%,respectively.The mutation rate of drug resistance genes were over 80%.Conclusion Ceftriaxone and spectinomycin can be used as the first choice drug for the treatment of Neisseria gonorrhoeae in Foshan region.The drug resistance mechanism of Neisseria gonorrhoeae is complex.The epidemiological monitoring of the Neisseria gonorrhoeae related drug resist-ance genes should be strengthened.
6.Relationship between glucokinase gene 6 tag single nucleotide polymorphism sites and type 2 diabetes mellitus
Xiuming ZHANG ; Geqin SUN ; Jingjing LI ; Hui HAN ; Qiong CHEN
Chinese Journal of Laboratory Medicine 2015;38(12):827-832
Objective To investigate the relationships between Glucokinase (GCK) gene 6 (tag single-nucleotide polymorphisms,tagSNPs)sites which named rs12702070,rs2971672,rs2268569,rs2268573,rs2300587 and rs1476891 polymorphisms and type 2 diabetes in Chinese Southern Han Population.Methods This study was designed as a case-control.499 type 2 diabetes patients and 499 healthy controls were chosen.All subjects were from August 2013 to December 2014 in Zhongshan Affiliated Hospital of Sun Yat-sen University.6 GCK tagSNPs sites were analyzed by improved multiple ligase detection reaction (iMLDR),and genotype and allele frequency between T2D group and healthy controls could be determined by chi-square test,logistic regression analysis,and tagSNPs were further analyzed under three genetic modes(dominant,recessive and additive).What's more,Haploview software was used to construct the haplotype of 6 GCK tagSNPs and the linkage disequilibrium (LD) and relationship between various GCK haplotype and T2D susceptibility could be analyzed.Results Genotype distribution of rs2268573,rs2300587,rs2268569 and rs1476891 (x2 were 3.361,2.076,0.582 and 0.918 respectively,all P >0.05) and allele frequency (x2 were 0.222,1.980,0.590 and 0.851 respectively,all P > 0.05) in T2D group were no significant differences with health controls.Significant differences in genotype distribution of rs2971672 and rs12702070 (x2 were 6.896 and 7.990 respectively,all P < 0.01) and allele frequency (x2 were 4.708 and 5.979,P < 0.05 and P < 0.01 respectively) were observed between T2D group and health controls.Under dominant model (rs2971672:OR =1.74,95% CI =1.17-2.57,P < 0.01;rs12702070:OR =1.54,95 % CI =1.17-2.04,P < 0.01) and additive model (rs2971672:OR =1.51,95 % CI =1.06-2.14,P < 0.05;rs12702070:OR =1.26,95% CI =1.04-1.52,P < 0.05),Genotype distribution of rs2971672 and rs2971672 in T2D were significantly different from health controls.There are two LD domains in 5 tagSNPs among those 6 sites of GCK gene.There are three main haplotypes(TC,TA,CA)in rs2971672 and rs2300587,and four main haplotypes (TAG,TGG,TAT,CGG) in Rs2268569,rs12702070 and rs1476891.Although TAG,TGG,TAT and CGG have no relevance to the individual risk of T2D (P > 0.05),haplotype TA and CA reduce the individual risk of T2D with OR 0.81 (95% CI:0.66-1.00,P<0.05) and0.78 (95% CI:0.62-0.98,P <0.01)respectively.Conclusions The results indicated that GCK gene 2 tagSNPs sites included rs2971672 and rs12702070 imparts susceptibility to T2D in Han Chinese,but not rs2268573,rs2300587,rs2268569 and rs1476891.Haplotype TA and CA in rs2971672 and rs2300587 reduce the individual risk of T2D and four main haplotypes (TAG,TGG,TAT,CGG) in rs2268569,rs12702070 and rs1476891 have no relevance to T2D.
7.The relationship between glucokinase gene 4 tag single nucleotide polymorphism sites and type 2 diabetes mellitus
Geqin SUN ; Xiuming ZHANG ; Jingjing LI ; Hui HAN ; Qiong CHEN
International Journal of Laboratory Medicine 2016;37(18):2507-2510
Objective To investigate the relationships between Glucokinase(GCK) gene 4 tag single‐nucleotide polymorphisms , tagSNPs)sites which named rs12702070 ,rs2268569 ,rs2268573 and rs1476891 polymorphisms and type 2 diabetes in Chinese South‐ern Han Population .Methods This study was designed as a case‐control .499 type 2 diabetes patients and 499 healthy controls were chosen .4 GCK tagSNPs sites were analyzed by improved multiple ligase detection reaction(iMLDR) ,and genotype and allele fre‐quency between T2D group and healthy controls could be determined by chi‐square test ,logistic regression analysis ,and tagSNPs were further analyzed under three genetic modes(dominant ,recessive and additive) .What′s more ,Haploview software was used to construct the haplotype of 4 GCK tagSNPs and the linkage disequilibrium(LD) and relationship between various GCK haplotype and T2D susceptibility could be analyzed .Results Genotype distribution of rs2268573 ,rs2268569 and rs1476891 and allele frequen‐cy in T2D group were no significant differences with health controls .Significant differences in genotype distribution of rs12702070 and allele frequency were observed between T2D group and health controls .Under dominant model and additive model ,genotype distribution of rs12702070 in T2D was significantly different from health controls .One LD domain was observed in 3 tagSNPs a‐mong those 4 sites of GCK gene .There are 4 main haplotypes(TAG ,TGG ,TAT ,CGG)in rs2268569 ,rs12702070 and rs1476891 , but all these haplotypes have no relevance to the individual risk of T2D(P>0 .05) .Conclusion The results indicated that the GCK gene tagSNPs site rs12702070 imparts susceptibility to T2D in Han Chinese ,but not rs2268573 ,rs2268569 and rs1476891 .Four main haplotypes in rs2268569 ,rs12702070 and rs1476891 have no relevance to T2D .
8.Fingerprints of Fructus Forsythiae by HPLC
Guoxiang SUN ; Shanxue MU ; Zhifei HOU ; Xiuming YU
Chinese Traditional Patent Medicine 1992;0(02):-
AIM: A HPLC fingerprint method for the quality control of Fructus Forsythiae has been established. METHODS: The chromatographic fingerprints were determined by injecting 5 ?L of the sample solution each time on a CentriSIL BDS colunm(20 cm?4.6 mm,5 ?m) with the gradient elution solvent system composed of 1% acetate acid water and 1% acetate acid acetonitrile.The flow rate was 1 mL/min,the colunm temperature was maintained at(30?0.15)℃ and the signals were acquired at 265 nm.The chromatographic fingerprints were also evaluated by the chromatographic fingerprint index(F),information index of chromatographic fingerprint(I).(RESULTS:)30 co-possessing peaks were selected as the fingerprint peaks,the similarities among samples of Fructus Forsythiae come from 10 production places and its standard chromatographic fingerprints were calculated taking coffeic acid peak as the reference peak. CONCLUSION: This method with good characteristics and specificity can be used in the quality control of Fructus Forsythiae.
9.Study on relationship between glucokinase gene 3 tag single nucleotide polymorphism sites and type 2 diabetes
Xiuming ZHANG ; Geqin SUN ; Jingjing LI ; Hui HAN ; Qiong CHEN
International Journal of Laboratory Medicine 2016;37(16):2211-2213,2216
Objective To investigate the relationships between glucokinase(GCK) gene 3 tag single‐nucleotide polymorphisms (tagSNPs)sites rs2971672 ,rs2268573 and rs2300587 polymorphisms with type 2 diabetes (T2DM ) .Methods A total of 499 south‐ern Han inpatients with T2DM (T2DM group) in our hospital and contemporaneous 499 Han individuals undergoing the physical examination(control group) in the Health and Fitness Protection Center of our hospital from August 2013 to December 2014 were chosen .The GCK gene 3 tagSNPs sites in all subjects were genotyped by adopting the improved multiple ligase detection reaction (iMLDR) ,and the genotype and allele frequency between the T2DM group and healthy controls were compared by the chi‐square test ,logistic regression analysis ,moreover the tagSNPs sites were performed the correlation analysis under three genetic modes (dominant ,recessive and additive) .The Haploview software was used to construct the haplotype of GCK gene 3 tagSNPs and the linkage disequilibrium(LD) and relationship between various GCK haplotype and T2DM susceptibility was analyzed .Results The differences of rs2268573 and rs2300587 genotypes(χ2 =3 .361 ,2 .076 ,P>0 .05) and allele frequency(χ2 =0 .222 ,1 .980 ,P>0 .05) between the T2DM group and the control group were not statistically significant .The difference of rs2971672 genotype(χ2 =6 .896 , P<0 .01) and allele distribution(χ2 =4 .708 ,P<0 .05) between the T2DM group and the control group was statistically signifi‐cant .Under the dominant genetic model and additive genetic model ,the genotype distribution of rs2971672 between the T2DM group and the control group was statistically significant(OR= 1 .74 ,95% CI:1 .17 -2 .57 ,P<0 .01 ;OR=1 .51 ,95% CI:1 .06-2 .14 ,P<0 .05) .Among 3 GCK gene sites ,rs2971672 and rs2300587 had the LD domain including 3 main haplotypes of TC ,TA and CA3 ,the TA and CA haplotypes all decreased the risk suffering from T2DM(OR=0 .81 ,95% CI:0 .66-1 .00 ,P<0 .05 ;OR=0 .78 ,95% CI:0 .62-0 .98 ,P<0 .05) .Conclusion In Han population ,GCK gene rs2971672 site is closely related with T2DM ge‐netic susceptibility ,while rs2268573 and rs2300587 sites have no obvious correlation with T2DM susceptibility .Haplotype TA and CA in rs2971672 and rs2300587 LD domain all reduce the individual risk suffering from T2DM .
10.Relationship between helper Tlymphocytes immune deviation and classⅡMHC antigen expression in acute rejection of transplanted heart
Zhenguang CHEN ; Peiwu SUN ; Peng XIANG ; Xiuming ZHANG ; Yan LI ; Xi ZHANG ; Shunon LI
Chinese Journal of Pathophysiology 1989;0(06):-
AIM: To observe the relationship between the immune deviation of Th1 and Th2 cell clones and class Ⅱ major histocompatibility complex (MHC) antigen expression in different stages of acute rejection in transplanted hearts. METHODS: Heart transplantation were performed in rats.Isografts and non-transplanted animals were used as control group. Donor class II MHC antigen expression were detected with monoclonal antibodies and immunostaining technique and the amount of type Ⅰ and Ⅱ cytokines mRNA expression were detected by semiquantitative RT-PCR in cardiac allografts. RESULTS: Myocardial IL-2 mRNA and donor class Ⅱ MHC antigen expression were significantly in creased, accompanied with development of acute rejection( P