2.Temperature Sensation Threshold of Trunk Skin in Healthy Adults
Hui-li ZHANG ; Ming-ming GAO ; Hua-zhen GUO ; Gui-yun SONG ; Pu ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2015;21(7):804-806
Objective To measure the temperature sensation threshold of trunk skin in healthy adults. Methods The threshold of cold sensation, warm sensation, cold pain sensation and heat pain sensation of trunk skin key points (T3, T7 and T11) were measured with Thermal Sensory Analyzer in 123 healthy adults. Results The thresholds of cold, warm, cold pain and heat pain sensations were obtained. The standard deviation of cold and warm threshold was less than that of heat pain. The range of cold sensation threshold was the largest. The heat pain sensation threshold increased with segmental declining and the sensation threshold increased with age. Conclusion Normal reference value should be established variously with the segment and age. The threshold of cold, warm varies less, while the threshold of cold pain and heat pain varies too much.
3.Evaluation for clinical application of UniCel DxH 800 hematology analyzer
Chengwei PU ; Ke SHANG ; Jianzhong WANG ; Xuekai LIU ; Ying XING ; Xiaoling TANG ; Hui GAO ; Ning DONG ; Huiqing SU ; Xiufen MING
Chinese Journal of Laboratory Medicine 2012;35(7):643-646
ObjectiveTo evaluate the improvement on test performance of UniCel DxH 800 automated hematology analyzer for complete blood count (CBC) by detecting its performance indicators and comparing the differences of the results with LH 750 hematology analyzer and ADVIA 2120 hematology analyzer.MethodsThe precision,carryover and linearity of UniCel DxH 800 in measurement of CBC were evaluated by using fresh blood samples and instrument quality control of products.To evaluate the accuracy of leukocyte differential count and reticulocyte count with the microscopic method as the “gold standard”.To calculate the bias and correlation between the results measured by LH 750,ADVIA 2120 and UniCel DxH 800 hematology analyzers and compare these three instruments on the validity of the alarm in abnormal cells.ResultsIntra-precision:The coefficient of variation (CV) of the results of RBC,Hb and MCV were less than 0.5%,the CV of WBC and PLT results were less than 1.5%.Inter-precision:the CV of the parameters above were less than 2.5%.The carryover rate of WBC,RBC,Hb,MCV and PLT were less than 0.51%.In the concentration range covered by clinical samples,the correlation coefficients between the measured values and theoretical value in testing WBC,RBC,Hb and PLT were greater than 0.999 ( P <0.01 ).The measurement results of WBC,RBC,Hb,MCV and PLT hy UniCel DxH 800,ADV1A 2120 and LH 750 hematology analyzers have good correlation (r > 0.973,P < 0.01 ).Correlation of reticulocyte count between the UniCel DxH 800 hematology analyzer and microscolpic method was significant (r =0.920,P <0.01 ).Correlation of leukocyte differential count about the grauulocytes, lymphocytes and eosinophils between the UniCel DxH 800 hematology analyzer and microscopic method was good (r =0.914,0.900 and 0.725,P <0.01 ),followed by monocytes ( r =0.612,P <0.01 ),which were better than the LH 750 with similar detection principle.The UniCel DxH 800 hematology analyzer demonstrated higher sensitivity (96.6% ) for the alarm of abnormal cells and achieved a lower false-negative rate (2.5% ).Meanwhile,the sensitivity of the neutrophil nuclei left shift was higher (90.5% ) and the false-negative rate (5.0%) was lower.ConclusionsThe UniCel DxH 800 hematology analyzer for complete blood count shows advantages of high precision,low carryover rate and wide linear range.The results detected by the UniCel DxH 800 hematology analyzer have good correlation with the LH 750 and ADVIA 2120.
4.Construction of recombinant eukaryotic expression plasmid containing 1.3-fold-overlength genome of HBV and its expression in HepG2 cells.
Ni TANG ; Ai-long HUANG ; Bing-qiang ZHANG ; Ge YAN ; Ming-que XIANG ; Dan PU ; Hui GUO
Chinese Journal of Hepatology 2003;11(8):464-466
OBJECTIVESTo transfer 1.3-fold-overlength genome of HBV expression plasmid into HepG2 cells, and observe the dynamic changes of viral replication as well as expression in the transfected cells.
METHODS4.1 kb fragment of HBV genome, derived from pGEM-HBV, was cloned into Hind III site of the eukaryotic expression vector pCDNA3.1 to construct the recombinant plasmid pHBV. Then HepG2 hepatoma, cells were transfected with pHBV, using Lipofectamine2000 transfection reagent. After 24, 48, 72 hours, the levels of HBsAg and HBeAg in the supernatant of HepG2 cells were determined with Abbott MEIA Kit. Intracellular viral DNA and RNA were analyzed by Southern and northern blot hybridization. In addition, viral-specific proteins (HBsAg and HBcAg) were assayed by immunofluorescence staining.
RESULTSThe expression vector pCDNA3.1 was constructed successfully. The levels of HBsAg were 5.36+-0.25, 13.42+-1.24, 7.52+-0.43, and the values of HBeAg were 9.16+-0.32, 22.75+-1.49, 15.96+-1.03 after 24, 48, 72 hours, respectively. All expected HBV replicative intermediates and specific transcripts were verified by Southern and northern blot analysis. The HBsAg-positive cells peaked after 24 hours, and then dropped slowly. HBsAg positive staining scattered in the cytoplasm, whereas HBcAg lied maily in the cytoplasm apart from nuclears.
CONCLUSIONSThis recombinant plasmid, which initiates viral replication efficiently in infected cells, is expected as a novel tool for investigating HBV replication in vitro.
Carcinoma, Hepatocellular ; pathology ; virology ; DNA, Viral ; genetics ; Eukaryotic Cells ; virology ; Gene Expression Regulation, Viral ; Genome, Viral ; Hepatitis B virus ; genetics ; physiology ; Humans ; Liver Neoplasms ; pathology ; virology ; Plasmids ; genetics ; Transfection ; Tumor Cells, Cultured ; Virus Replication
5.Construction of recombinant fowlpox virus expressing E0 gene of classical swine fever virus shimen strain and the animal immunity experiment.
Yang-Hui WANG ; Pu-Hua LI ; Miao-Tao ZHANG ; Yan-Ming ZHANG
Chinese Journal of Virology 2008;24(1):59-63
The CSFV E0 gene was amplified from the plasmid pMD18-T-E0 by PCR and cloned into the FPV-P11 and FPV-pSY. The identified recombinant DNA was transfected into chicken embryo fibroblasts (CEF) to package Fowlpox virus. E0 gene was confirmed to be integrated into the genome of recombinant Fowlpox virus by PCR, and Western blot was employed for detection of E0 expression in the chicken embryo fibroblasts infected with recombinant Fowlpox virus . The results of ELISA showed that systemic immune response to CSFV could be induced effectively after the mice were immunized three times with recombinant Fowlpox virus through celiac route, the titer of antibody was 1 : 4096. The protection experiment showed that 75% of piglets immunized three times with recombinant Fowlpox virus were survived, indicating that the recombinant Fowlpox virus was effective. This paper lays foundation for the study of CSFV live vector vaccine.
Animals
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Blotting, Western
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Chick Embryo
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Classical swine fever virus
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genetics
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immunology
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Enzyme-Linked Immunosorbent Assay
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Female
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Fowlpox virus
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genetics
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Mice
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Mice, Inbred BALB C
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Polymerase Chain Reaction
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Swine
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Vaccines, Synthetic
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immunology
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Viral Envelope Proteins
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genetics
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immunology
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Viral Vaccines
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immunology
6.Antagonistic effect of aqueous extract of detoxified cottonseeds on corticosterone-induced lesion in cultured PC12 cells.
Yun-feng LI ; Ming YANG ; Yi-min ZHAO ; Xin-hui LUAN ; Zhi-pu LUO
China Journal of Chinese Materia Medica 2002;27(6):442-446
OBJECTIVETo study the possible mechanism of aqueous extract of detoxified cottonseeds (CTN-W).
METHOD AND RESULTCTN-W 0.01, 0.03, 0.10, 0.30 mg.mL-1 was incubated directly with the synaptic membrane extracted from the cerebral cortex in rats, and adenylyl cyclase (AC) activity was detected by using radio-immunoassay.
RESULTShowed that CTN-W could activate AC in a dose-dependend manner. After incubation with PC12 cells in the presence of corticosterone 2 x 10(-4)mol.L-1 for 48 h, CTN-W 0.08, 0.4, 2 mg.mL-1 protected PC12 cells from the lesion induced by corticosterone.
CONCLUSIONAntidepressant and anxiolytic effects of CTN-W are related with the activation of AC-cAMP pathway in signal transduction system, thus protecting neurons from the lesion. These two aspects maybe partly form the mechanism of CTN-W's action.
Adenylyl Cyclases ; metabolism ; Animals ; Anti-Anxiety Agents ; pharmacology ; Antidepressive Agents ; pharmacology ; Corticosterone ; antagonists & inhibitors ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Gossypium ; chemistry ; Neuroprotective Agents ; pharmacology ; PC12 Cells ; drug effects ; Plants, Medicinal ; chemistry ; Rats ; Rats, Wistar ; Seeds ; chemistry ; Synaptic Membranes ; enzymology
7.The anti-tumor activity of GM-CSF-modified lung cancer cell vaccine and its synergism in combination with chemotherapy.
Hong-Jing JIANG ; Xiu-Bao REN ; Hui LI ; Jin-Pu YU ; Feng WEI ; Ming-Quan MA
Chinese Journal of Oncology 2007;29(11):808-812
OBJECTIVETo investigate the anti-tumor effects and mechanism of tumor vaccines and whether chemotherapeutic agents administered prior to immunotherapy could augment the efficacy of the vaccines.
METHODSC57/BL mice inoculated with Lewis lung cancer cells were used as tumor models. Granulocyte-macrophage colony-stimulating factor (GM-CSF) gene modified LA795 and Lewis lung cancer cell lines were administered as allogeneic and autologous tumor vaccines, respectively. After Lewis cells (1 x 10(7)) inoculation, the mice received irradiated GM-CSF secreting cancer vaccine solely or in combination with carboplatin. The survival of the mice was observed. The cytotoxicity of spleen cells or purified CD8(+) cells was analyzed by lactate dehydrogenase (LDH) assay. Serum level of IL-4 and IFN-gamma was detected using ELISA method.
RESULTSThe cytotoxicity of the spleen cells or purified CD8(+) T cells against Lewis cells in the mice immunized with cancer cell vaccine was significantly increased, relative to that of the control, untreated group (P < 0.05). Serum level of Th1-type cytokine IFN-gamma was increased after vaccination, whereas Th2-type cytokine IL-4 showed no significant change. The GM-CSF secreting cancer cell vaccine had no significant influence on the survival of the mice with established heavy tumor burden. The combination of chemotherapy and cancer vaccine could statistically prolong the survival time; whereas any method itself had no significant effect.
CONCLUSIONThe GM-CSF secreting cancer cell vaccine can induce immune responses. The chemotherapeutic agents may be beneficial to enhance the anti-tumor activity of cancer vaccine.
Animals ; Antineoplastic Agents ; therapeutic use ; Cancer Vaccines ; therapeutic use ; Carboplatin ; therapeutic use ; Carcinoma, Lewis Lung ; blood ; metabolism ; pathology ; therapy ; Cell Line, Tumor ; Female ; Granulocyte-Macrophage Colony-Stimulating Factor ; genetics ; metabolism ; Interferon-gamma ; blood ; Interleukin-4 ; blood ; Lung Neoplasms ; metabolism ; pathology ; Mice ; Mice, Inbred C57BL ; Transfection
8.The baculovirus enhancin.
Xiao-xia ZHANG ; Xiao-hui CHEN ; Zhen-pu LIANG ; Su-mei CAO ; Fen XU ; Guan-hua QIAO ; Xing-ming YIN
Chinese Journal of Virology 2010;26(5):418-423
Baculoviridae
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genetics
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metabolism
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Phylogeny
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Viral Proteins
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chemistry
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classification
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genetics
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metabolism
9.Relationship between attitude toward seeking professional psychological help and life events, coping styles in college students
ying Ying ZHANG ; jun Dong ZHANG ; na Li WANG ; hui Ming PU ; yan Yan LUO
Journal of Xinxiang Medical College 2017;34(12):1076-1079,1084
Objective To investigate the effect of life events and coping styles on attitude toward seeking professional psychological help in college students.Methods Nine hundred college students were survey by attitude toward seeking professional psychological help questionnaire (ATSPPHQ),adolescent self-rating life events check list and coping style questionnaire.Results The total score,the scores of expecting and acceptance factor of ATSPPHQ of female were significantly higher than those of male (P < 0.05);there was no statistic difference in scores of need and trust factor of ATSPPHQ between male and female(P <0.05).There was statistic difference in total score and score of each factor of ATSPPHQ among difference grade (P < 0.05).The total score and each factor score of ATSPPHQ of science & engineering profession students were significantly higher than those of literature and history profession students(P < 0.05).There was no statistic difference in total score and score of each factor of ATSPPHQ among another variables(P > 0.05).Problem solving and help-seeking of coping styles were positive correlation with attitude toward seeking professional psychological help (P < 0.05);all factors of life events and self-blame,fantasy,avoidance,rationalization factor of coping style were negative correlation with attitude toward seeking professional psychological help(P < 0.05).The punishment,problem solving,self-blame and help-seeking were the influence factors of attitude toward seeking professional psychological help.Poblem solving and help-seeking had positive predictive effect (P < 0.05);punishment,self-blame had negative predictive effect (P < 0.05).The immature coping style and mixed coping style had intermediary effect between life events and the attitude toward seeking professional psychological help.Conclusions The attitude toward seeking professional psychological help of college students is different in gender,grade and profession.Life events and coping style have a certain impact on the attitude toward seeking professional psychological help.Coping style play an intermediary role between the life events and the attitude toward seeking professional psychological help.
10.Studies on sexual dysfunction in male patients with chronic renal insufficiency.
Wei-Dong ZHANG ; Jun-Ming FAN ; Jing GUAN ; Guo-Hui PENG ; Li ZHOU ; Xun JIAN ; Ming CHEN ; Xiao-Hui LIU ; Pu-Sheng ZHANG
National Journal of Andrology 2003;9(7):489-493
OBJECTIVESTo investigate the prevalence, main manifestation and related factors of sexual dysfunction in male patients with chronic renal insufficiency (CRI).
METHODSA cross-section study was conducted by six hospitals in Sichuan Province. The prevalence and severity of sexual dysfunction were assessed by SCASF microsoft among patients with chronic renal disease. Logistic regression was used to examine and test the association between sexual dysfunction and other medical conditions.
RESULTSThe prevalence of sexual dysfunction was wider in patients with CRI than in those without. The main manifestations in male patients were decreased libido, erectile dysfunction and premature ejaculation. Stratified analysis in uremia showed that the prevalence and severity of sexual dysfunction were similar between patients on haemodialysis(HD) and those on peritoneal dialysis(PD). The patients receiving no replacement treatment suffered more decreased libido and performance anxiety than dialyzed patients (HD and PD) and transplantation patients(Tx). The patients receiving no replacement treatment and dialysis suffered more erectile dysfunction than Tx men. A multivariable analysis demonstrated that the duration, creatinine clearance(Ccr), parathyroid hormone (PTH), albumin(Alb) were not associated with sexual dysfunction. The use of beta-blocker, anemia and depression were risky factors for decreased libido, and increasing age was a risky factor for erectile dysfunction. The use of angiotensin-converting-enzyme inhibitor(ACEI)/angiotention receptor antagonist (ARB) and recombinant human erythropoietin(r-HuEpo) were protective factors for erectile dysfunction.
CONCLUSIONSThe main manifestations of sexual dysfunction in male patients with CRI are decreased libido, erectile dysfunction and premature ejaculation. The replacement therapy, especially transplantation, can decrease the prevalence or severity of sexual dysfunction. The genesis of sexual dysfunction is multifactorial, including age, physiological factors, psychological factors and medical conditions.
Adult ; Age Factors ; Case-Control Studies ; China ; epidemiology ; Cross-Sectional Studies ; Humans ; Kidney Failure, Chronic ; complications ; Logistic Models ; Male ; Middle Aged ; Multivariate Analysis ; Prevalence ; Risk Factors ; Sexual Dysfunction, Physiological ; epidemiology