1.Value of C-Reactive Protein,Interleukin-6,Tumor Necrosis Factor-? in Early Diagnosis of Neonatal Sepsis
Journal of Applied Clinical Pediatrics 1992;0(05):-
Objective To investigate the value of C- reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-?) in early diagnosis of neonatal sepsis. Methods Sixty- five newborns were divided into experiment group and control group, experiment group was also divided into sure group and doubtful group by blood culture We assessed the level of serum CRP, IL-6 and TNF-? in 24 hours and after 24 hours of clinical diagnosis of sepsis in experiment group, and examined the blood culture before antibiotic treatment Serum CRP, IL-6 and TNF-? were also examined in 3 to 6 days old. Results 1 The levels of serum CRP, IL-6 and TNF-? in experiment group were significantly higher than that in control group 2. The sensitivity of IL-6 and TNF-? were higher than CRP in 24 hours in experiment group. 3. After 24 hours, the sensitivity of CRP was elevated,and there was no statistical difference compared with the IL-6. Conclusion IL-6 and TNF-? are the credible marker in the early diagnosis of neonatal sepsis, and are more sensitive than the CRP, the IL-6 is the first sensitive marker.
2.The progress in clinical application of procalcitonin
Shi-fei YU ; checking Fang-qiu LI
Journal of Medical Postgraduates 2016;(2):206-209
Procalcionin ( PCT) is a soluble protein liberated into the circulation of patients in response to severe systemic in-fection, in particular by bacterial infection.It is used as the most accurate biomarker for the diagnosis of sepsis.This review briefly de-scribes the induction of PCT, the comparison of PCT and other markers of sepsis, the application of PCT measurement in confirmation or exclusion of diagnosis of sepsis, the assessment of severity and treatment effectiveness of systemic infection, the application of PCT in guiding individual and specific treatment of antibiotics, and the anormaly situation of elevated levels of PCT in patients who do not have sepsis.
3.Mutations in exon 5 of the phenylalanine hydroxylase (PAH) gene in patients with phenylketonuria
Wuzhong YU ; Donghui QIU ; Fang SONG
Medical Journal of Chinese People's Liberation Army 1982;0(03):-
Objective To determine the mutations in exon 5 of the phenylalanine hydroxylase(PAH)gene in phenylketonuria(PKU)patients from Xinjiang.Methods The mutations in exon 5 and flanking sequence of PAH gene were detected by SSCP analysis and DNA sequencing.Results Four different mutations,including missence mutation F161S,splice mutation IVS4-1G→A,missence mutation R158Q and nonsence mutation Y166X were identified in 74 chromosomes from 37 PKU patients,with relative frequencies of 4.1%,1.4%,1.4% and 1.4%,respectively.The frequency of mutant alleles in exon 5 is 8.1%.Considering the previous reports and the present study,R158Q was the most prevalent form in PKU patients from European and Latin American countries,IVS4-1G→A was a common mutation inoriental PKU populations.However,F161S and Y166X are two characteristic forms in Chinese.Conclusion Characteristics of PAH gene mutations and their distribution were showed in Chinese PKU population from Xinjiang,where is a hinterland located between China and Europe.The results give a clue that Xinjiang might be an ideal genetic resource repertoire for studying diversity of gene mutations,heterogeneity of PAH gene,human genesis and migration.
4.Studies on mutations of exon 11 and 12 in phenylalaninase gene of phenylketonuria patients in Xinjiang
Wuzhong YU ; Donghui QIU ; Fang SONG
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
Objective To investigate the point mutation features of exon 11 and 12 in phenylalanine hydroxylase(PAH)gene of the patients with phenylketonuria(PKU)in Xinjiang.Methods PCR/SSCP and gene sequencing were used in present study.Results Five mutations were identified from 74 chromosomes of 37 patients.Among them two mutations were detected from exon 11 including nonsense mutation Y356X and splice site mutation V399V,and three mutations were detected from exon 12 including R413P,R408W and A434D,all which were missense mutation.The frequency of the five mutations were 5.4%,5.4%,4.1%,1.4%,1.4% and 1.4%,respectively.The allelomorphic frequency of exon 11 and 12 were 10.8% and 6.8%,respectively.Among the five mutations,R413P is common in Japan,Y356X and V399V are centered in north China,and R408W is the most often mutation in Europe and America.Conclusion Xinjiang Uygur Autonomous Region is situated on northwest China,contiguous to other countries of central Asia,and is such an area differed from other areas of China,and distributed special PAH gene mutation in PKU patients.
7.HPLC combined with PCA technology for analysis of five gingerol compounds in different processing degrees of ginger charcoal.
Jiang-yong YU ; Qiu-fang CHEN ; Guo-yong LU
China Journal of Chinese Materia Medica 2015;40(21):4200-4204
To establish a new method for simultaneously determining the content of five gingerol compounds in different processing degrees of ginger charcoal and PCA principal component analysis was conducted for analysis. Samples were analyzed on Ultimate TM XB-C18 column (4.6 mm x 250 mm, 5 μm) , with acetonitrile (A) -0.1% phosphoric acid solution (B) as mobile phase for gradient elution. Detection wavelength was set at 280 nm. The flow rate was 0.6 mL x min(-1) and the column temperature was 30 degrees C. The five compounds were separated well and showed good linearity (r ≥ 0.999 7) within the concentration ranges tested. The average value for recoveries was between 98.86% - 101.5% (RSD 1.4% - 2.9%). The contents of five compounds showed difference among different processing degrees of ginger charcoal. Zingiberone had the highest content in the standard carbon, and the content of gingerol was decreased as the deepening of processing degree. Different processing degrees of ginger charcoal were classified into three groups with PCA, and provided scientific basis for establishing the quality standards of ginger charcoal.
Catechols
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chemistry
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Charcoal
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chemistry
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Chemistry, Pharmaceutical
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methods
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Chromatography, High Pressure Liquid
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methods
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Drugs, Chinese Herbal
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chemistry
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Fatty Alcohols
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chemistry
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Ginger
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chemistry
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Principal Component Analysis
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methods
9.Initial evaluation on safety of herpes simplex virus Ⅰglycoprotein B DNA vaccine in mice
Fang YU ; Bing HE ; Jun QIU ; Fangqin MA ; Hong ZHANG
Journal of Jilin University(Medicine Edition) 2006;0(05):-
0.05).Conclusion pcDNA3-gB with different doses have not significant effect on the indexes of hematology,hematological biochemistry and pathology in immunized mice.It is initially proved that pcDNA3-gB is safe.
10.Determination of tetrodotoxin in nassarius and shellfish by hydrophilic liquid chromatography-tandem mass spectrometer coupled with dispersive solid phase extraction
Li FANG ; Fengmei QIU ; Xinwei YU ; Zhichao ZHANG
Chinese Journal of Food Hygiene 2017;29(4):434-438
Objective In order to analyze of poisoning causes,a new method was established utilizing hydrophilic liquid chromatography-tandem triple quadrupole mass spectrometer (HILIC-MS/MS) coupled with dispersive solid phase extraction for rapid qualitative and quantitative analysis of tetrodotoxin in nassarius and shellfish.Methods Sample (1.0 g) was extracted with 0.1% acetic acid in boiling water bath,purified by dispersive solid phase extraction with 50 mg hydrophilic-lipophilic balance (HLB),5 mg graphitized carbon black (GCB) and protein precipitation with acetonitrile,and then filtered through a polytetrafluoroethylene (PTFE) membrane.The analytes were separated on a HILIC column,and detected in selected reaction monitoring (SRM) mode via positive electrospray ionization.The matrix matching and external standard method was used for quantification.Results Tetrodotoxin showed good linearity in the concentration range between 2.0 and 40.0 ng/ml,the correlation coefficient was higher than 0.999.The detection limit of tetrodotoxin in seafood was 10.0 pg/kg.The rates of recovery varied between 74.2% and 87.9% with relative standard deviations from 2.3% to 9.1% at spiked concentrations of 25,100 and 200 pg/kg.The proposed method was applied in the detection of tetrodotoxin in shellfish and nassarius from coastal cities of Zhejiang Province.Conclusion The method was accurate,fast,easy to operate,which could meet the requirements of public health emergency testing or routine testing.