1.Quality control system for automatic sediment analyzer
Yingmu CAI ; Jinghua LIN ; Xiaoyang JIAO
Chinese Journal of Laboratory Medicine 2001;0(03):-
Objective To establish a quality control process for Sysmex UF 100 Urine analyzer. Methods L J control process of UF 100 Urine analyzer; x m Q C methods; Chemistry and UF 100 methods comparison; Microscope examination Results L J control process can reflect and monitor the instrument status and the reagent quality; The x m Q C method can indicate the influence factor which come from the samples; Chemistry and UF 100′s comparison can find their contradiction and the error causes;Microscopy can make up UF 100′s test blind spots Conclusions These methods can monitor the result′s quality practically and effectively It is benefit to improve the test quality of UF 100 analyzer
2.Research and Analysis Result of Recheck Blood Type in Part of Beijing Blood Bank
Xiaoyang ZHAO ; Dong LIN ; Jiwu GONG
Chinese Journal of Nosocomiology 1994;0(04):-
OBJECTIVE To investigate the degree of risk of viral prevalence of HBV,HCV and HIV through blood transfusion in Beijing Hospital in China,and to assess the need of a national Haemovigilance System. METHODS Retrospectively,7883 blood bank specimens (collected from 2004 to 2007) were re-examined using 8 indicators (including 5-item Hepatitis B,anti-HCV,anti-HIV and Syphilis) for the prevalence of most common viral infection. RESULTS From the blood bank specimens,the prevalence of HBsAg was 0.88% (69),the anti-HBc positive blood,only the anti-HBc was found in 2.65% of the specimens,while both the anti-HBc and the anti-HBe were found in 2.09% of the specimens. The prevalence of anti-HCV was 0.09% (7). CONCLUSIONS We need to establish the national Haemovigilance System to strengthen the monitoring of the above HbsAg,HBcAb and HCV indicators to prevent the transfusion-transmitted infection. Only in this way can the public confidence in blood safety be improved.
3.Aripiprazole in patients with bipolar disorder D2 receptor and 5 -HT1A receptor partial agonists and analysis of 5-HT2A receptor antagonism
Xiaoyang WANG ; Tiancou LIN ; Xinhua SHEN
Chinese Journal of Primary Medicine and Pharmacy 2016;23(14):2216-2219
Objective To explore the efficacy of aripiprazole in patients with bipolar disorder D2 receptor and 5 -HT1A receptor partial agonists and analyze 5 -HT2A receptor antagonism.Methods From January 2013 to January 2015,113 patients came to our hospital for treatment of bipolar disorder,in accordance with the order of admission,were divide into aripiprazole group (47 cases)and control group (66 cases).The control group was given venlafaxine,aripiprazole group was given aripiprazole treatment on the basis of the control group.SDS,BRMS score and therapeutic effect were compared between the two groups before and after treatment.Results The SDS,BRMS scores were decreased after treatment in the two groups,compared with before treatment,the differences were statisti-cally significant (t =31.3587,36.1207;all P <0.05 );and the aripiprazole group decreased more significantly than the control group,the SDS,BRMS scores of the two groups after treatment had statistically significant differences [SDS (31.8 ±4.3)points vs (28.7 ±3.6)points,BRMS (6.5 ±0.2)points vs (5.5 ±0.2)points,t =4.110 7,26.197 0, all P <0.05 ].The total effective rate of the aripiprazole group was 97.9%,which was significantly higher than 89.4% of the control group (u =3.365 9,P =0.000 8).The incidence rate of adverse reactions such as nausea, vomiting,drowsiness,anxiety and heart rate in the aripiprazole group was significantly lower than the control group (all P <0.05 ).Conclusion Aripiprazole for bipolar disorder patients with D2 receptor and 5 -HT1A receptor has partial agonism,of 5 -HT2A receptor with role constraints,can effectively improve the effect of treatment of patients,reduce the incidence of adverse reactions.
4.Effect of Shenqi Fuzheng injection on serum CRP,IL-6 and IL-10 levels in elderly patients with coronary heart disease
Xiaoyang LIN ; Fubin WU ; Mengqian DONG
Chinese Journal of Biochemical Pharmaceutics 2016;36(9):116-118
Objective To investigate the effect of Shenqi Fuzheng injection on serum CRP,IL-6 and IL-10 levels in elderly patients with coronary heart disease.Methods 64 elderly patients with coronary heart disease from Wenling First People's Hospital hospital were selected and randomly divided into the control group and the experiment group.32 cases in each group, the control group were treated by conventional symptomatic treatment, the experiment group were treated with Shenqi Fuzheng injection on the base of control group.The serum ( C-reactionprotein,CRP) ,white blood cell mediated IL-6 and leukocyte mediated element IL-10, systolic blood pressure, diastolic blood pressure(DBP),glycerin,total cholesterol(TC),triglyceride(TG), low density lipoprotein(LDL-C) and high density lipoprotein(HDL-C) levels were recorded,and the clinical efficacy and adverse reaction conditions were compared.Results The effective rate of treatment in the control group was 68.75% lower than that in the experiment group 90.63%(P<0.05). Compared with the control group after treatment,the serum CRP, IL-6, IL-10, systolic blood pressure, diastolic blood pressure, TC,TG and LDL-C levels were lower,theHDL-C level was higher,has statistical significance(P<0.05).Conclusion Shenqi Fuzheng injection in the treatment of elderly patients with coronary heart disease has a significant effect,can reduce serum CRP, IL-6 and IL-10 levels.
5.Nuclease activity and cytotoxicity to host cells of toxic protein VapC produced by Leptospira species
Xiaoyang XIN ; Xüai LIN ; Liwei LI ; Jie YAN
Chinese Journal of Microbiology and Immunology 2012;32(2):166-171
Objective To determine the function of toxic protein VapC in toxin/antitoxin system of Leptospira species and the cytotoxicity to host cells of the toxic protein.Methods Using genomic DNA of pathogenic L.interrogans serogroup Icterohaemorrhagiae serovar Lai strain Lai as the template,several PCRs were performed to amplify entire vapB,vapC and vapBC genes.Subsequently,the prokaryotic expression systems of vapB,vapC and vapBC genes were constructed.Expression of the target recombinant proteins rVapB and rVapC was detected by SDS-PAGE and the expressed rVapB and rVapC were extracted by NiNTA affinity chromatography.Activity of rVapB and rVapC to lyse the DNAs or RNAs from L.interrogans strain Lai and THP-1 cells were then determined.The changes of transcription and expression of vapB and vapC genes of L.interrogans strain Lai before and after infection of THP-1 cells were detected by real-time fluorescent quantitative RT-PCR and Western blot assay.The eukaryotic expression vectors of the vapB and vapC genes were generated for transfection of host cells and CCK-8 agent was used to detect the effect of leptospiral VapB and VapC proteins on activity of host cells.Results The nucleotide and putative amino acid sequences of the cloned vapB and vapC genes were completely identical with the reported corresponding genes.The constructed prokaryotic expression systems could express rVapB and rVapC,respectively.rVapC displayed RNase avtivity but did not lyse DNA.When L.interrogans strain Lai infected THP-1 cells,the transcription and expression of vapB and vapC genes were upregulated and partial VapC protein was secreted from the leptospiral cells.The mass mortality was observed in HEK293 human renal tubular epithelial ceils containing the vapC gene through transfection.Conclusion VapC protein of L.interrogans strain Lai is a RNase and is secreted during infection of host cells with obvious cytotoxicity.
6.Effects of Electroacupuncture at Sanyinjiao and Yinlingquan Acupoints on Muscle Repair and Expression of Growth Factors in Gastrocnemius Muscle Damaged Rats
Xiaoyang LIAN ; Shaoqing CHEN ; Yisheng FANG ; Shizhong WANG ; Jianping LIN
Chinese Journal of Rehabilitation Theory and Practice 2015;(11):1273-1276
Objective To investigate the effects of electroacupuncture at Sanyinjiao (SP6) and Yinlingquan (SP9) on muscle repair in the gastrocnemius muscle damaged rats and its possible mechanism. Methods 30 male Sprague-Dawley rats were randomly divided into blank group (n=10), model group (n=10) and electroacupuncture group (n=10). The latter 2 groups were modeled with gastrocnemius muscle crush injury. The electroacupuncture group received electroacupuncture at Sanyinjiao and Yinlingquan for 14 days. Their gastrocnemius was observed with HE staining, and the expressions of basic fibroblast growth factor (bFGF) and insulin-like growth factor-1 (IGF-1) in gastroc-nemius tissues and the serum were determined with immunochemical assay and enzyme-linked immunosorbent assay (ELISA). Results Compared with the model group, there was less damage in the electroacupuncture group, with more expression of bFGF and IGF-1 in tis-sues (P<0.01) and serum (P<0.05). Conclusion Electroacupuncture can promote muscle repair after gastrocnemius muscle damage in rats, which may be related to the increase of the bFGF and IGF-1 expression in gastrocnemius tissue and serum.
7.Effects of Zibu Piyin Recipe Serum on endoplasmic reticulum(ER)stress-induced neuron apoptosis and its mechanism
Libin ZHAN ; Xiaoguang LU ; Haiyan LIN ; Hua SUI ; Xiaoyang CONG
Chinese Journal of Emergency Medicine 2008;17(12):1280-1284
Objective To explore the inhibitory effects of Zibu Piyin Recipe(ZBPYR)serum on neuron apoptosis induced by tunieamyein(Tm,5 μg/ml)and its mechamsm in vitro by using sero-pharmacological method.Method Totally 12 healthy adult male SD rats(220~250 g)(SPF)were divided randomly into control group and ZBPYR group,6 in each group,then the blank and ZBPYR serum were prepared.The mouse.neuroblastoma cell line Neum2a cells were treated with Tunicamycin(Tin,an inhibitor of N-glycoslytion)to establish the endoplasmic reticulum(ER)stress model.The cells treated by ZBPYR aerum of different concentrations were interventional groups,and the cells treated by blank serum were control group.The viability of Neuro2a cells was meusurcdd by MTT assay.Flow cytometry wus applied to observe the apoptosis of Neuro2a cells.Western blotting was utilized to detect the protein expressions of two molecules,ER molecular chaperone-ucose regulated protein 78(CRP78)and transcriptional factor CCAAT/enhancer-binding protein-homologous protein(CHOP).The results were analyzed by sNK-q test.Results Compared to Tm group(cell viability 0.1673±0.0213,apoptotic rate 62.7050±1.4056),The cell viability of interventional groups(5%0.5295±0.0373,10%0.5843±0.0428,15%0.6274±0.0324)increased significantly(P<0.05);and the apoptotic rate(5%47.8733±2.8166,10%46.3366±1.2748,15%39.8833±1.0524)reduced significantly(P<0.05).The protein expressions of GRP 78(5%2.1228±0.2251,10%1.3293±0.9443,15%;15%0.0931±0.1168)and CHOP(5%1.1776±0.2927,10%0.7290±0.1708,15%0.6577±0.1883)of interventional groups reduced significantly compared with Tm group(GRP78 2.9149±0.5355;CHOP 1.6611±0.2913)P<0.05.Condusions ZBPYR serurn could increase the cell viability of Neuro2a cells treated with Tm and inhibit cell apoptosis.Thereby it may have neuroprotective effects,and the mechanism may be associated with the inhibition of ER stress and apoptosis pathway.
8.Aberrant function connectivity and grey matter volume within default mode network in patients with type 2 diabetes mellitus by functional MRI
Xiaoyang WANG ; Hui LI ; Dandan LIN ; Liyuan FU ; Qiansen LIN ; Jinhua CHEN ; Ziqian CHEN
Chinese Journal of Radiology 2016;50(8):576-580
Objective To explore early aberrant change of the function and grey matter volume within default-mode network in patients with type 2 diabetes mellitus (T2DM) by Independent component analysis and voxel-based morphometry.Methods Twenty-nine T2DM patients and thirty-three healthy control subjects were recruited in this study between May 2014 and January 2015,and the demographic and clinical data (fasting plasma glucose and HbA1c level) were obtained.General cognition was assessed by MMSE and MoCA in all subjects.Resting-state fMRI and T1-weighted imaging were performed in all subjects.Then the z-maps of default-mode network were obtained from Resting-state fMRI by independent component analysis,and the grey matter volumes were extracted by VBM.Finally,two-sample t-test was performed in the function and grey matter volume of DMN between two groups,and pearson correlation coefficients among zFC values extracted from significantly different brain regions,grey matter volumes and durations of T2DM patients were calculated.Results Patients with T2DM showed decreased Z value around the right anterior cingulated cortex and the right medial pre-frontal cortex(cluster=121,t=-3.81,P< 0.05).There was no significant difference in grey matter volume between the two groups,and no correlation between Z value or duration and grey matter volume was found.Conclusions It suggests the abnormality of connectivity of default-mode network may precede the abnormality of grey matter volume in type 2 diabetes mellitus patients.The DMN might be a new potential tool in monitoring the change of cognition in patients with type 2 diabetes mellitus.
9.Comparative analysis on the effect of ovulation induction of letrozole and clomiphene on the treatment of polycystic ovary syndrome
Xiaohong SONG ; Xiaoyang FEI ; Zhenyun LIN ; Xiaojing YANG ; Di ZHANG ; Meiyan JIANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(7):176-177
Objective To investigate the effect of ovulation induction of letrozole and clomiphene on the treatment of polycystic ovary syndrome.Methods From February 2014 to February 2014 80 cases with polycystic ovary syndrome in Hangzhou maternity hospitalas the research object were divided into two groups: the control group and the observation group.The control group were treated with clomiphene;the observation group were treated with letrozole.The clinical effect in the two groups were compared.Results The total effective rate was 95.0% in the observation group, which was higher than 67.5% in the control group, the difference was statistically significant(P<0.05).The thickness of endometrium in the observation group was(9.10±1.32)mm and(5.38±0.61)mm in the control group at the HCG injection day, the difference between the two groups was statistically significant (P<0.05).Conclusion Letrozole can be used in the treatment of polycystic ovary syndrome, can get high quality treatment effect, worthy of promotion.
10.Statistical parametric mapping-based interhemispheric asymmetry analysis of 18F-FDG PET brain imaging in localization of unilateral temporal lobe epileptic foci
Xiaoyang WANG ; Chunlei ZHAO ; Hui LI ; Liyuan FU ; Dandan LIN ; Ziqian CHEN
Chinese Journal of Nuclear Medicine and Molecular Imaging 2017;37(9):538-543
Objective To evaluate the diagnostic value of the SPM-based interhemispheric asymmetry analysis (SIAA) of 18F-FDG PET brain imaging in localization of temporal lobe epileptic foci.Methods A total of 73 patients (42 males,31 females,average age: (27.10±9.78) years) diagnosed as temporal lobe epilepsy (TLE) and 30 healthy volunteers (17 males,13 females,average age: (33.79±5.46) years) from March 2012 to July 2015 were enrolled in this retrospective study.18F-FDG PET brain imaging was performed on all subjects to localize temporal lobe epileptic foci.The results of 18F-FDG-PET were analyzed by SIAA,visual analysis and asymmetry index (AI) analysis.The accuracy of the three methods was evaluated according to the postoperative pathological results and curative effect.χ2 test and partition of χ2 test were used to analyze the data.Results The accuracies of localization with SIAA,visual analysis and AI analysis were 87.67%(64/73),75.34%(55/73) and 69.86%(51/73),respectively (χ2=6.993,P<0.05).The accuracy of SIAA was higher than that of visual analysis and AI analysis (χ2 values: 5.818 and 8.481,both P<0.017),while there was no significant difference between AI analysis and visual analysis (χ2=0.500,P>0.017).Conclusion The SIAA of 18F-FDG PET brain imaging may be a more objective and accurate method in localization of TLE foci.