1.Clinical Significance and Detection of Neuro- Peptide and Neurotensin in Patients with Brain Glioma
Qiuxia YIN ; Yongbing SI ; Falian QI
Chinese Journal of Tissue Engineering Research 2001;5(8):155-
Objective To investigate the change of neuropeptide Y(NPY)and neurotensin(NT)in pqtients with brain glioma.Method The concentration of NPY and NT in and around brain glioma tissue and plasma were detected with inequilibrant radio- imunology method.Result NPY concentrqtion in brain glioma tissue was obviously higher than that in tissue around the tumor(P<0.01).The Concentration of NT in brain glioma tissue was obviously higher that in tissue around the glioma(P<0.01).Conclusion Detection of NPY and NTin brain glion aprovides basis for further study on brain glioma and explainning dlinical and imaginal symiptom of brain glioma.
2.Clinical results of total ankle replacement for ankle disorders
Binyao MAO ; Yutong HU ; Zhongzhui YIN ; Quanming SI
Chinese Journal of Trauma 2003;0(11):-
Objective To study the result of total ankle replacement in treating ankle disorders. Methods Total ankle replacement was employed to treat 18 cases (18 ankles) with ankle disorders including ankle osteoarthritis in six, traumatic arthritis in nine, local necrosis of the talus in two and post ankle arthrodesis in one. Results The follow up averaged three years and nine months (1-5 years). The ankle functions were evaluated with Kofoed's system that showed excellent result in 16 cases and good in 2. The foot dorsiflexion was 6?-12? and plantoflexion 8?-16?. Movement range of the foot dorsiflexion and plantoflexion was 11?-23?. The implication was the skin necrosis of incise bordger. No foot inversion, eversion and radiographic loosen were seen. Conclusion Total ankle replacement is a good method for improvement of the ankle function.
3.Protein C genetic variation was associated with the susceptibility to acute respiratory distress syndrome in Chinese Han population
Jin ZHANG ; Chaoyang TONG ; Jun YIN ; Si SUN ; Zhenju SONG
Chinese Journal of Emergency Medicine 2017;26(6):632-637
Objective To investigate the genetic variants in the protein C (PC) and endothelial protein C receptor (EPCR) genes associated with the risk and outcome of acute respiratory distress syndrome (ARDS) patients in Chinese Han race.Methods Five tagSNPs (single nucleotide polymorphism,SNP) in the PC and EPCR genes were genotyped in patients with ARDS (n =275) and non-ARDS (n =337) in order to find the association between them in this case-control study.The SNPs were genotyped by SNPstream Beckman platform.Then,the correlation between the associated SNPs and plasma levels of activated protein C (APC) in patients with ARDS was investigated.The APC levels were measured using enzyme linked immunosorbent assay (ELISA) method.Results Association analysis rcvealed that two PC SNPs in perfect linkage disequilibrium,rs1799809 and rs1158867,were significantly associated with susceptibility to ARDS.T allele frequency of rs1799809 in ARDS patients was significantly higher than that in non-ARDS patients (OR =1.569,95% CI:1.192-2.066).And the genotype frequencies of rs1799809 were also significantly different between these two groups (P =0.007).The association remained significant after adjustment for multiple comparisons.Haplotype consisting of three SNPs in the PC gene was also associated with susceptibility to ARDS.The frequency of haplotype CCC in the ARDS samples was significantly lower than that in the non-ARDS group (P < 0.01).Moreover,ARDS patients canrying rs1799809 TT genotype showed lower serum levels of APC than patients with TC and CC genotypes (Padj =0.02).However,genotype and allele analyses of EPCR did not show any significant difference between ARDS and non-ARDS patients.Conclusions These findings indicated that common genetic variation in the PC gene was significantly associated with susceptibility to ARDS in Chinese Han race.The PC genetic variation influenced plasma concentration of APC in patients with ARDS.
4.Effects of Shenqi Fuzheng Injection Combined with Nimodipine on Blood Indicators of Cerebral Infarction Patients in the Recovery Period
Si CHEN ; Bin LU ; Wenwei YIN ; Kun BI
China Pharmacy 2016;27(5):683-685
OBJECTIVE:To observe the effects of Shenqi fuzheng injection combined with Nimodipine tablet on blood indica-tors of cerebral infarction patients in the recovery period. METHODS:58 patients diagnosed as cerebral infarction in the recovery period were collected and randomly divided into control group and trial group,with 29 cases in each group. Control group was giv-en Nimodipine tablet 30 mg,tid;trial group was additionally given Shenqi fuzheng injection 250 ml,qd,ivgtt. Both group re-ceived 14 d of treatment. After treatment,the levels of serum hs-CRP,Fractalkine,tPA,PAI-1,blood rheology index and plasma fibrinogen(FIB)were observed in 2 groups. RESULTS:After treatment,the levels of serum hs-CRP,Fractalkine,blood rheology index PAI-1 and FIB decreased in trial group,while tPA activity increased;there was statistical significance between trial group and control group (P<0.05). CONCLUSIONS:Shenqi fuzheng injection combined with Nimodipine tablet can significantly im-prove the serum hs-CRP and Fractalkine levels,blood rheology indicators,PAI-1 and FIB,and improve tPA activity.
5.DETECTION OF IgM ANTIBODY WITH RECOMBINANT ANTIGEN rSAG1 FOR TOXOPLASMOSIS DIAGNOSIS
Yongfei TAN ; Xin YIN ; Junming TANG ; Jin SI ; Ming XU ; Xuren YIN ; Guoqun CAO ; Yousheng LIANG ; Yinchan ZHU
Chinese Journal of Schistosomiasis Control 1989;0(02):-
Objective To establish rSAG1-IgM-ELISA with purified rSAG1 fusion protein for immunodiagnosis of toxoplasmosis. Methods The rSAG1 fusion protein was purified by Ni 2+ column. The ELISA plate was coated with different concentrations of rSAG1, reacted with pooled positive and negtive human sera. Goat anti-human IgM conjugated to horseradish peroxidase was used as the second antibody. The appropriate detecting condition of the rSAG1-IgM-ELISA assay was determined by orthogonal experiment. The reproducibility, sensitivity and specificity of the assay were assessed. Thirty-five IgM-positive and 57 IgM-negative human sera detected by the imported IgM-ELISA kit were detected with the rSAG1-IgM-ELISA. Results The purity of rSAG1 was above 90%. The appropriate detecting condition was that the coated rSAG1 was 2 5 ?g/ml, the human serum was in 1∶100 dilution, and the second antibody was in 1∶4000 dilution. The coefficient of variation (CV) value of IgM-positive and IgM-negative pooled sera were 13 8% and 7 7% respectively. The inhibition rate of the assay was 62 0% The positive correspondence rate and negative correspondence rate were 82 9% (29/35) and 91 2% (52/57) respectively,the total correspondence rate was 88 0%, compared with the imported IgM-ELISA kit. Conclusions The rSAG1-IgM-ELISA has high sensitivity and specificity, and good correspondence rate with the imported IgM-ELISA kit. It indicates that rSAG1-IgM-ELISA has potential value for early diagnosis of toxoplasmosis.
6.Determination of benzyl glucosinolate in Lepidium meyenii from different regions by HPLC.
Lin TANG ; Hong-jun YIN ; Cong-cong SI ; Xiao-yan HU ; Zheng-hai LONG
China Journal of Chinese Materia Medica 2015;40(23):4541-4544
The content of benzyl isothiocyanate (BITC) which as the enzymatic hydrolysis product of benzyl glucosinolate through thioglucosidase was determined by HPLC. The content of benzyl isothiocyanate (BITC) which as the enzymatic hydrolysis product of benzyl glucosinolate through thioglucosidase was determined by HPLC. The chromatography condition was as follows: Kaseisorb LC ODS 2000 (4.6 mm x 150 mm, 5 min) column with the mobile phase of acetonitrile(A)-water( B) under gradient elution (0-5 min, 3%-8% A; 5-9 min, 8%-48% A; 9-23 min, 48%-62% A; 23-28 min, 62%-99% A); the flow rate was 1.0 mL x min(-1) with 10 microL injection volume; detection wavelength was 246 nm and temperature of column was 40 degrees C. The content of benzyl glucosinolate was in the range of 10.76-17.91 g x L(-1). The method is simple, accurate and good reproducibility which can be used for the determination of benzyl glucosinolate in Lepidium meyenii, effectively.
Chromatography, High Pressure Liquid
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methods
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Glucosinolates
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analysis
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Lepidium
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chemistry
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Plant Extracts
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analysis
7.Effect of dexmedtomidine combined with low-dose ketamine on patients during sedative amnesia fiberoptic nasotracheal intubation
Yunluo LYU ; Yuan ZHANG ; Jialin YIN ; Yanna SI ; Hongwei SHI ; Hongguang BAO
The Journal of Clinical Anesthesiology 2016;32(7):657-660
Objective To investigate the influence of low-dose ketamine and dexmedetomidine on cardiovascular response during. sedative amnesia fiberoptic nasotracheal intubation. Methods Ninety ASA Ⅰ or Ⅱ patients scheduled to recerve general anesthesia were evenly random-ized to dexmedetomidine and ketamine (group DK),dexmedetomidine and propofol (group DP)and dexmedetomidine and remifentanil (group DR).Ten minutes before intubation,the patients in group DK received intravenously dexmedetomidine 1.0 μg/kg plus ketamine 0.5 mg·kg-1 ·h-1 ;those in group DP received intravenously dexmedetomidine 1.0 μg/kg plus propofol 2.0 mg · kg-1 · h-1 ;those in group DR received intravenously dexmedetomidine 1.0 μg/kg plus remifentanil 5.0μg·kg-1 ·h-1 .Nasotracheal intubation was performed with fiberoptic bronchoscopy after dexemeto-midine injection and complete topical anesthesia.HR,MAP,SpO 2 and Ramsay sedation score were re-corded before anesthesia (T0 ,baseline),before intubation (T1 ),immediately intubated (T2 )and five minutes after intubation (T3 ).Side effects such as restlessness,bucking,respiratory depression and cardiovascular event during intubation and awareness of intubation were also recorded.Results All pa-tients in three groups were performed successfully.HR and MAP were significantly decreased in groups DP and DR at T1 (P <0.05),SpO 2 was significantly decreased in group DP at T1 (P <0.05);MAP in group DR were higher than those in group DP,HR in groups DP and DR were significantly increased than those in group DK at T3 (P < 0.05 );Ramsay score were significantly decreased in groups DP and DR at T2 ,significantly lower in group DR at T3 than those in groups DK and DP (P<0.05).The incidences of bradycardia and respriatory depression were significantly higher in group DP than those in group DK,and bucking,restlessness,tachycardia incidence rate in group DR were significantly higher than those in groups DK and DP (P <0.05).Conclusion Dexmedetomidine com-bined with low dose ketamine together with topical anesthesia is an ideal method for sedative amnesia fiberoptic nasotracheal intubation with slighter cardiovascular response and less side effects.
8.Association between promoter polymorphisms of interleukin-4 gene and allergic rhinitis risk: a meta-analysis.
Zhi-Peng, LI ; Li-Li, YIN ; Hui, WANG ; Li-Si, LIU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2014;34(3):306-13
The relationship of interleukin-4 (IL-4) C-33T and C-590T (C-589T) gene polymorphisms with allergic rhinitis was analyzed. Data about the case control studies of IL-4 gene promoter polymorphisms [C-33T and C-590T (C-589T)] and their association with allergic diseases and correlation between serum IL-4 levels and allergic rhinitis were retrieved. The Stata 12.0 statistical software was applied to analyze the correlation between IL-4 gene polymorphisms and allergic rhinitis. The meta-analysis result of TT/CC genotype of -590 (-589) polymorphism showed a significant association with allergic diseases [OR=1.93, 95% CI (1.61-2.31), P=0.00]. Meta-analysis of the TT+TC versus CC genotype of IL-4 C-33/T polymorphism revealed significant associations with allergic diseases [OR=3.23, 95% CI (1.13-9.25), P=0.03]. Meanwhile, there was a significant correlation between serum IL-4 levels and allergic rhinitis [OR=2.52, 95% CI=(1.80-3.23), P=0.00]. IL-4 gene -590 TT genotype may increase the risk of allergic rhinitis and the T allele mutation of -33 might be correlated with allergic rhinitis.
9.Application of On-line SPE-HPLC System in Pharmacokinetic Study of Highly Active Anti-Cancer Compound TEB-415
Man WANG ; Yabin WEN ; Kangning LIU ; Ge SI ; Lei LIU ; Zheng YIN ; Yaxin LU
Chinese Journal of Analytical Chemistry 2014;(12):1729-1734
An on-line solid phase extraction-high performance liquid chromatography ( SPE-HPLC ) system was applied in the plasma pharmacokinetic study of highly active anti-cancer compound tyrosine kinase inhibitors (TEB-415) in mouse. The on-line SPE-HPLC method associated with Ultimate3000 system which was applied to the determination of the blood drug level of TEB-415 in mouse plasma. C18 column ( Venusil MP, 150 mm × 4. 6 mm, 5μm) was used as analytical column and the mobile phase consisted of acetonitrile-5 mmol/L monopotassium phosphate buffer ( pH 3 . 5 ) at a flow rate of 1 . 0 mL/min was used as the isocratic elution. An MF Ph-1 column (10 mm×4 mm, 5 μm) was used as on-line SPE column, and water and water-acetonitrile were used as the washing solvent and elution solvent respectively. The detection wavelength was set at 262 nm. The pharmacokinetic parameters were calculated by WinNonlin 5. 2 software. The linear range of the calibration curve was between 100 and 20000 μg/L, and the limit of qualification was 20 μg/L. The extraction recovery was between 90 . 5% and 94 . 6%. The RSD of intra-day and inter-day precision was less than 3. 5%. The accuracy of short-term stability, freeze-thaw stability and long-term stability were between 91. 49% and 101. 96%. After oral medication, the mean peak time (Tmax) of TEB-415 in mice was 5. 29 h, and the mean maximum concentration ( Cmax) was 3403μg/L. The area under the curve ( AUC) of TEB-415 was 24600 μg/L·h. This drug's mean half-life was 3. 84 h, and its mean retention time (MRT) was 6. 56 h. These parameters suggested that TEB-415 had appropriate rate of absorption and elimination with preferable bioavailability.
10.Comparison of marker gene expression changes in different mouse models of cardiac hypertrophy
Hongwei KAN ; Wenwen SI ; Yanyan YIN ; Can HE ; Jie CHENG ; Chunyan WANG ; Qiongguang ZHANG ; Yan YANG
Chinese Pharmacological Bulletin 2016;(2):274-278
Aim To explore the differences in hyper-trophic marker genes such as atrial natriuretic peptide ( ANP) , brain natriuretic peptide ( BNP) and β-myo-sin heavy chain (β-MHC) genes in different models of cardiac hypertrophy. Methods Respectively using re-nal abdominal aortic coarctation ( AAC) , arteriovenous fistula ( AVF) and isoproterenol ( ISO) methods to es-tablish C57BL/6 mouse model of cardiac hypertrophy. After modeling, each mouse ’ s body weight ( BW ) , heart weight ( HW) and left ventricular weight ( LVW) were weighed, and the heart weight ( HW/BW) and left ventricular index ( LVW/BW ) were calculated;myocardium by HE staining, pathological morphologi-cal changes were observed; myocardium by immuno-histochemistry, ANP, BNP and β-MHC protein ex-pression was observed;myocardium by Real-time PCR detection, ANP, BNP and β-MHC mRNA expression was observed. Results Compared with control group, HW/BW and LVW/BW were increased in three mod-els. Through the light microscope, each mouse model showed varying degrees of cardiac hypertrophy. ANP, BNP and β-MHC were increased in the protein and mRNA expression. Compared with AAC group, AVF and ISO groups’ myocardial tissue ANP, BNP and β-MHC expression were decreased in the protein and mRNA expression. Conclusions Three cardiac hy-pertrophy models are successful. Cardiac tissue ANP, BNP and β-MHC expression in AAC model exceeds AVF and ISO model.