2.Epidemiological investigation results of plague in Shanxi province
Zhi-min, ZHAO ; Jian-zhong, ZHENG
Chinese Journal of Endemiology 2011;30(4):441-443
Objective To analyze the data collected from surveillance sites in Shanxi province in epidemiological investigations during 2004 - 2008 and understand the influence of such factors as rat density and vectorial quantities on plague epidemic intensity, thus provide some scientific basis for plague control and prevention. Methods To collect the data of surveillance during 2004 - 2008 in the 12 counties of plague surveillance by retrospective method. Sort and analyze the collected data according to the requirement of operational scheme for plague surveillance-calculate the rat density of spermophilus dauricus, meriones meridianus and the small rodents, and the flea index and the flea infection ratio of body flea, burrow track, cave. The results of serological tests were analyzed at the same time. Results As showed in the results, the mean density of spermophilus dauricus was 1.12 merely in each hectare, and that of meriones meridianus and small rodents were 7.42%(2130/28 700) and 8.03%(3886/48 400), respectively. The flea infection rate of spermophilus dauricus and meriones meridianas were 25.78% ( 1933/7497 ) and 44.19% (2028/4598), respectively;the flea index of spermophilus dauricus and meriones meridianus were 0.59 and 1.84, respectively. The number of nests excavated with flea for spermophilus dauricus was 70, and the numbers of nests and flea were 362 and 333, respectively. The flea infection rate was 19.34 % (70/362), and the flea index was 0.92. The number of nests excavated with flea for meriones meridianus was 34, and the numbers of nests and flea were 177 and 124, respectively. The flea infection rate was 19.21%(34/177), and the flea index was 0.70. The number of caves explored for spermophilus dauricus was 7171,and the number of burrows with flea was 62, so the flea infection rate was 0.86%(62/7171 ), and the flea index was 0.01. Conclusions With a relatively high density and large quantity and considering the epidemic features of animal plague in periphery provinces in recent years, plague may still happen and spread in Shanxi province diespite the negative results of all those serological tests, by means of importing from other provinces.
3.Continuous intravenous infusion of midazolam for treatment of status epilepticus in children.
Jian-min ZHONG ; Jian-hua LI ; Yong CHEN
Chinese Journal of Pediatrics 2004;42(4):299-300
Adolescent
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Age Factors
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Anti-Anxiety Agents
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administration & dosage
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adverse effects
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therapeutic use
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Child
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Child, Preschool
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Female
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Humans
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Infant
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Infusions, Intravenous
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Male
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Midazolam
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administration & dosage
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adverse effects
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therapeutic use
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Status Epilepticus
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drug therapy
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Treatment Outcome
4.Role of p42/p44 MAPK signal transduction pathway in expression of VEGF induced by elevated glucose concentration in cultured hRPE cells
Chun-Xia, ZHANG ; Jian-Min, HU ; Ming-Zhong ZHUANG
International Eye Science 2014;(8):1382-1385
AIM: To study p42/p44 mitogen - activated protein kinases ( MAPK ) signal transduction pathway effect on vascular endothelial growth factor ( VEGF ) expression induced by elevated glucose concentration in cultured human retinal pigment epithelium ( hRPE) .
METHODS:hRPE cells were cultured and divided into four groups:normal glucose group (NG) (5. 6mmol/L), high glucose group ( HG1:15mmol/L D-glucose, HG2:20mmol/L D - glucose, HG3:30mmol/L D - glucose ), PD98059 group: hRPE cells were treated by an efficient and selective inhibitor PD98059 (20μmol/L) of p42/p44MAPK signal transduction pathway and solvent dimethyl sulfoxide group ( DMSO group) . The expression of VEGF and pigment epithelium derived factor ( PEDF ) mRNA was detected by RT-PCR. VEGF protein expression in cultured hRPE supernatants was detected by enzyme-linked immumosorbent assay ( ELISA) .
RUSULTS: VEGF mRNA and protein expression induced by elevated glucose concentration increased significantly. VEGF mRNA and protein expression were restrained in PD98059 group. Ratio of ( VEGF/β-actine)/( PEDF/β - actine ) in PD98059 group decreased significantly compare with that in high glucose group.
CONCLUSION: p42/p44MAPK signal transduction pathway might play a part in VEGF expression induced by elevated glucose concentration in cultured hRPE cells.
5.Changes of plasma prethrombotic state molecular markers levels in silicosis patients.
De-Zhong ZHANG ; Jian-Yan WEN ; Li-Min FAN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2009;27(7):444-446
Adult
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Biomarkers
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blood
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Blood Proteins
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metabolism
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Humans
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Male
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Middle Aged
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Silicosis
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blood
8.Effect of Autologous Tumor Cell Lysate-loaded Dendritic Cell Vaccine in Combination with Cytokine-induced Killer Cells on Hepatocellular Carcinoma
Guocheng ZHONG ; Xiaoyu ZHANG ; Yi SUN ; Hong KUANG ; Xinrong JING ; Min MIN ; Hao LIAO ; Jian CHEN
Chinese Journal of Clinical Oncology 2009;36(24):1404-1408
Objective: To investigate the killing activity of cytokine-induced killer (CIK) cells after incubation with autologous tumor cell lysate-pulsed dendritic cells (Ag-DC) and to evaluate the immune functions of patients, the clinical efficacy and side effect of Ag-DC in combination with CIK on hepatocellular carcinoma. Methods: Peripheral blood mononuclear cells were isolated from 24 patients with hepatocellular carcinoma, and cultured with granulocyte-macrophage colony-stimulating factor and interleukin-4 to produce dendritic cells (DCs). The DCs were pulsed with autologous tumor cell lysate. T lymphocytes from PBMC were cultured with interferon-Y (IFN-γ), IL-2, CD3-moAb, and IL-1α to prepare CIK. The killing effect of CIK on SMMC-7721 was investigated after CIK was incubated with Ag-DC. After immunotherapy with Ag-DC and CIK, immunolog-ic and clinical responses of the 24 patients were evaluated. Results: The killing effect of CIK was remarkably improved after CIK was incubated with Ag-DC. The immunotherapy with DC and CIK alleviated symptoms and improved the immune functions of the patients. Except for transient fever and chill, no remarkable adverse events were observed. Conclusion: Ag-DC in combination with CIK shows short-term efficacy on hepatocellular carcinoma through inducing specific anti-tumor immunity and can be an effective adjuvant therapy for hepatocellular carcinoma.
9.Comparative study between the Meibomian pulsation system and the warm compress treatment for MGD
International Eye Science 2018;18(7):1324-1328
·AIM: To compare the efficacy and safety of LipiFlow pulsation system and traditional Meibomian warm compress treatment for patients with Meibomian gland dysfunction (MGD). ·METHODS: Totally 50 patients with MGD were selected, whom were randomly divided into experimental group ( 25 cases ) and control group ( 25 cases ). The experimental group underwent a single treatment with the LipiFlow pulsation system. Subjects of the control group were subjected to a daily 15- minute warm compress treatment, lasting 2wk. Comparative analyses were made during moments before and 4, 8 and 12wk after treatments, according to the evaluation of eight indexes including subjective symptoms, tear film break-up time ( TBUT), tear film lipid layer thickness (LLT), Meibomian deletions etc. Those analyses were made using LSD-t test, to analyze the effectiveness evaluation parameters at different time points. Independent samples t-test was employed to compare those statistic results between experimental group and control group. · RESULTS: Statistically significant differences were observed on Ocular Surface Disease Index ( OSDI), the quality of Meibomian secretions and Schirmer test ( P<0. 05). There were also statistically significant differences on the difference in degree of improvements in OSDI, the Meibomian glands yielding liquid secretion, fluorescein staining score LLT, TBUT between the experimental group and control group (P<0. 05). There were no differences on safety parameters between two groups. ·CONCLUSION: A single treatment with the LipiFlow pulsation system and warm compress treatment are effective and safe for MGD, while the former is better.
10.SSB peptide and DNA co-immunization induces inhibition of anti-dsDNA antibody production in rabbits.
Chinese Medical Journal 2008;121(3):227-230
BACKGROUNDPatients with systemic lupus erythematosus often have various autoantibodies. The relationship between these antibodies is still poorly understood. The aim of the present study was to observe the anti-SSB antibody and anti-dsDNA antibody production profiles following immunization with synthetic SSB peptide alone, DNA alone or co-immunization with these two antigens.
METHODSSSB 214 - 225 aa peptide was synthesized by organic chemistry solid-phase peptide synthesis. Rabbits were immunized with the following antigens: synthetic SSB peptide linked with keyhole limpet hemocyanin (KLH), DNA, SSB plus dsDNA, KLH and PBS. Antibodies were measured by ELISA. Histopathology and direct immufluorescence assays were also applied.
RESULTSAnti-SSB and anti-dsDNA antibodies were produced following immunization with SSB peptide and DNA respectively. The level of SSB antibody in the co-immunization group was higher than that of the SSB peptide immunization group. The level of anti-dsDNA antibody in the co-immunization group was, however, lower than that in the DNA immunization group. Meanwhile, the level of anti-SSB antibody was higher than that of anti-DNA antibody in the co-immunization group. No morphological or immunological abnormalities were found in the heart, liver, kidney, spleen or skin tissues.
CONCLUSIONInhibition of anti-dsDNA-antibody was induced by co-immunization with synthesized SSB peptide and DNA, which might explain, at least partly, the mild disease in some LE subsets associated with SSB antibody.
Animals ; Antibodies, Antinuclear ; biosynthesis ; Autoantigens ; immunology ; DNA ; immunology ; Fluorescent Antibody Technique, Direct ; Immunization ; Rabbits ; Ribonucleoproteins ; immunology