In order to evaluate the pollution of heavy metals in offshore surface sediments around shipyards in Korea, surface sediment samples were collected at eleven stations around four major shipyards located in the southeastern coast of Korea in summer 2010 and nine kinds of heavy metals such as copper(Cu), zinc(Zn), cadmium(Cd), lead(Pb), chrome(Cr), arsenic(As), mercury(Hg), iron(Fe) and aluminum(Al) in sediments were analyzed. The concentrations of Cu at all sampling stations were in the range of 47.10~414.96 mg/kg and exceeded TEL(Threshold Effects Level) 20.6 mg-Cu/kg of Korean marine environmental standards for offshore sediments and ERL(Effect Range-Low) 34.0 mg-Cu/kg. The concentrations of Cu at seven stations around four shipyards were 65.18~414.96 mg/kg and exceeded PEL(Probable Effects Level) 64.4 mg-Cu/kg of Korean marine environmental standards for offshore sediments. The concentration of Cu at one station around B-shipyard was 414.96 mg/kg and exceeded ERM(Effect Range-Median) 270.0 mg-Cu/kg. The concentrations of Zn at all stations were in the range of 135.09~388.79 mg/kg which exceeded ERL 150.0 mg-Zn/kg. The concentrations of Zn at seven stations around four shipyards were 157.57~388.79 mg/kg and exceeded PEL 157.0 mg-Zn/kg. The concentration of Zn at one station around B-shipyard was 388.79 mg/kg and was approaching ERM 410.0 mg-Zn/kg. The concentrations of Cd at all stations were in the range of 0.11~0.54 mg/kg and were below TEL 0.75 mg-Cd/kg and ERL 1.2 mg-Cd/kg. The concentrations of Pb at all stations were in the range of 18.04~105.62 mg/kg. The concentrations of Pb at two stations around B-shipyard were 73.87~105.62 mg/kg which exceeded TEL 44.0 mg-Pb/kg and ERL 46.7 mg-Pb/kg, and were below PEL 119.0 mg-Pb/kg and ERM 218.0 mg-Pb/kg. The concentrations of Cr at all stations were in the range of 51.26~85.39 mg/kg. The concentration of Cr at one station around B-shipyard was 85.39 mg/kg and exceeded ERL 81.0 mg-Cr/kg. The concentrations of As at all stations were in the range of 8.70~22.15 mg/kg which exceeded ERL 8.2 mg-As/kg and were below ERM 70.0 mg-As/kg. The concentrations of As at eight stations around A-shipyard, B-shipyard and D-shipyard were 14.93~22.15 mg/kg which exceeded TEL 14.5 mg-As/kg and were below PEL 75.5 mg-As/kg. The concentrations of Hg at all stations were in the range of 0.02~0.35 mg/kg. The concentrations of Hg at three stations around A-shipyard were 0.11~0.13 mg/kg which were almost equal to TEL 0.11 mg-Hg/kg. Those at two stations around B-shipyard were 0.27~0.35 mg/kg which exceeded TEL 0.11 mg-Hg/kg and ERL 0.15 mg-Hg/kg, and were below PEL 0.62 mg-Hg/kg and ERM 0.71 mg-Hg/kg. The concentrations of Fe and Al at all stations were in the range of 2.90 3.66 % and 3.12 6.80 %, respectively. These results imply that heavy metals such as copper, zinc, lead, arsenic and mercury were likely to be transferred to marine environment from shipyards, especially from B-shipyard.
Objectives : Gumiganghwal-tang and its main components have been used for treatment of cough, headache, joint pain and fever. Using a respiratory inflammatory model, we intend to demonstrate the its anti-inflammatory effect and immune mechanism of Gumiganghwal-tang. Methods : We induced the respiratory inflammation mouse model by papain treatment. Female BALB/C mice (8 weeks old) were divided into three groups as follows: saline control group, papain treatment group (vehicle), papain and Gumiganghwal-tang (200 mg/kg) treatment group (n=4). To verify the anti-inflammatory effect of Gumiganghwal-tang extracts, we measured the infiltration of inflammatory cells in bronchoalveolar lavage fluid (BALF) and nasal lavage fluid (NALF). Additionally, the efficacy of Gumiganghwal-tang extracts on Th2 cell population and alveolar macrophage in lung were analyzed by using flow cytometry. Results : Gumiganghwal-tang extracts administration decreased inflammatory cell infiltration in BALF and NALF, especially of eosinophils. Furthermore, interleukin-5 level was reduced in lung by drug administration. Interestingly, Gumiganghwal-tang extracts treatment also decreased the Th2 cell (CD4+GATA3+) population and increased the alveolar macrophage (CD11b+CD11c+) population in lung. Conclusions : Our findings indicate that Gumiganghwal-tang extracts have anti-inflammatory effects by mediating Th2 cell and alveolar macrophage cell activation.
Objectives : The purpose of this study is to investigate the effect of electroacupuncture at Joksanmi($ST_{36}$) on Rat's aging by experimental methods. Methods : The author performed several experimental procedures to observe the effects of the EC-HAS at the arthritis. First, I measured the cell survival rate of the mice lung fibroblasts. Second, the incidence rate of arthritis and arthritis index of CIA were analyzed. Third, the levels of IL-6, $INF-{\gamma}$ , $INF-{\alpha}$ , $IL-1{\beta}$, IgG, IgM and anti-collagen II were measured in serum and the level of $INF-{\gamma}$, $INF-{\gamma}$/IL-4 ratio in the CIA mouse spleen cell culture. Fourth, histological analysis of the mice joint was performed. Fifth, the expression ratio of $CD3e^+$ cells to $CD19^+$ cells, $CD4^+$ cells to $CD8^+$ cells, $CD11a^+CD19^+$ cells, $CD4^+CD25^+$ cells, $CD3^+CD69^+$ cells, and $CD11b^+Gr-1^+$ cells were checked. Results: 1. The hematocrit was meaningfully (p<0.01, p<0.05) decreased in $ST_{36}$ group in comparison with the control and sham group. 2. The glucose, ALP were meaningfully (p<0.05, p<0.05) decreased in $ST_{36}$ group in comparison with the control group. 3. In the activation of hepatic antioxidase, the catalase was meaningfully (p<0.01) increased in $ST_{36}$ group in comparison with the control group. 4. In the liver, the NO formation was meaningfully (p<0.001) decreased in $ST_{36}$ group in comparison with the nomal, control and sham group. 5. In the activation of splenetic antioxidase, the GSH was meaningfully (p<0.01) increased in $ST_{36}$ group in comparison with the sham group, and the catalase was meaningfully (p<0.001) increased in $ST_{36}$ group in comparison with the control group. 6. In the spleen, the MDA formation was meaningfully (p<0.01, p<0.05) decreased in $ST_{36}$ group in comparison with the control and sham group. 7. In the spleen cell culture, the levels of IL-6 was meaningfully (p<0.05) decreased in comparison with the sham group, $INF-{\gamma}$( was meaningfully (p<0.05) increased in comparison with the control group. Conclusions: According to the results, it is considered that electroacupuncture at Joksamni($ST_{36}$) is effective in increasing the activities of antioxidative enzyme and inhibiting lipid peroxides, and has an immunomodulatory reaction. In conclusion, it han an significant anti-aging effect and need more experimental study.
JSTS:Journal of Semiconductor Technology and Science
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제4권2호
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pp.100-105
/
2004
The influencing factors on the OPC (optical proximity correction) results are quantitatively analyzed using OPCed L/S patterns. ${\sigma}$ values of proximity variations are measured to be 9.3 nm and 15.2 nm for PR-A and PR-B, respectively. The effect of post exposure bake condition is assessed. 16.2 nm and 13.8 nm of variations are observed. Proximity variations of 11.6 nm and 15.2 nm are measured by changing the illumination condition. In order not to seriously deteriorate the OPC, these factors should be fixed after the OPC rules are extracted. Proximity variations of 11.4, 13.9, and 15.2 nm are observed for the mask mean-to-targets of 0, 2 and 4 nm, respectively. The decrease the OPC grid size from 1 nm to 0.5 nm enhances the correction resolution and the OCV is reduced from 14.6 nm to 11.4 nm. The enhancement amount of proximity variations are 9.2 nm corresponding to 39% improvement. The critical dimension (CD) uniformity improvement for adopting the small grid size is confirmed by measuring the CD uniformity on real SRAM pattern. CD uniformities are measured 9.9 nm and 8.7 nm for grid size of 1 nm and 0.5 nm, respectively. 22% improvement of the CD uniformity is achieved. The decrease of OPC grid size is shown to improve not only the proximity correction, but also the uniformity.
Objectives : The aim of this study was to investigate the asthma-suppressive and immuno-regulatory effect of NR-HA(Notopterygii Rhizoma Herbal-acupuncture) at Pyesu(BL13) on OVA(ovalbumin)-induced asthma in mice. Methods : C57BL/6 mice out of all the experimental sloops, except the Normal group and the NR-HA group, were sensitized and challenged with OVA. The mice in the NR-HA group and the OVA-NR-HA group were treated with NR-HA(1%) at Pyesu(BL13). The mice in the OVA-Saline group were injected with saline at Pyesu(BL13). The mice in the OVA-Needle-prick group were treated with a single prick with an injection needle at Pyesu(BL13). NR-HA, saline injection and needle prick were administered for 8 weeks, three times a week Results : in vitro 1. The populations of granulocytes, $CD3e^-/CCR3^+$cells, $CD69^+/CD3e^+$ cells, $CD4^+\;cells\;and\;CD23^+/B220^+$ cells in the OVA-induced asthmatic mouse lungs decreased significantly by NR-HAS(Notopterygii Rhizoma Herbal-acupuncture solution). 2. The lung weight and total cells in lung of the OVA-NR-HA group decreased significantly compared with those of the OVA-Control group. 3. Total leukocytes and eosinophils in BALF of the OVA-NR-HA group decreas ed significantly compared with those of the OVA-Control group. 4. The collagen accumulation in the lung sections of the OVA-NR-HA group decreased significantly compared with that of the OVA-control group. 5. The concentrations of IL-4, IL-5, IL-13, IgE in BALF and serum of the OVA-NR-HA group decreased significantly compared with those of the OVA- Control group. 6. The numbers of $Gr-1^+/CD11b^+,\;CCR3^+,\;CD3e^+, \;CD19^+,\;CD3e^+/CD69^+$ cells in the OVA-NR-HA group decreased significantly compared with those of the OVA-Control group. 7. The mRNA expressions of $TNF-{\alpha}$, IL-5, IL-4 and IL-13 in lung of the OVA-NR-HA group decreased significantly compared with those of the OVA- Control group. 8. The NR-HA group did not show my considerable difference from the Normal group. The OVA-saline group and the OVA-Needle prick group showed suppressive effects on OVA-induced asthma however they were not statistically significant. Conclusion : These results suggest that NR-HA at Pyesu(BL13) is considered to be effective in treating asthma and to be put to practical use in the future asthma clinic.
Objectives : The present study was carried out to investigate the effects of Astragali radix on the asthma treatment. EAR-I is an extract of astragali radix cultured for one year and EAR-III is an extract of astragali radix cultured for three years. Methods : Two asthma-induced groups mice group was treated respectively with EAR- I and EAR- III. The other group was not. Each group was analyzed in vivo and in vitro experiments. Results : In asthma-induced mice by OVA treatment, the weight of lung, total cell number of leukocyte and eosinophil in BALF, both EAR- I and EAR- III treated groups were significantly decreased compared to control group. IL-4, IL-5, IL-13, histamine, IgE in BLAF of group treated with both EAR-I and EM-III were significantly decreased compared to control group. In FACS analyzing, granulocytes, $CD3e^-$/$CCR3^+$, $CD3^+$/$CD19^$, $CD3e^+$/$CD69^+$, $CD4^+$, $CD8^+$ and $GR-1^+$/$CD11b^+$ were significantly increased in asthma induced mice group by OVA treatment compared to control group, and decreased in group treated with both EAR- I and EAR-III. Conclusions : The present data proves that extract of astragali radix has an effect on the inhibiting asthma. Moreover, astragali radix cultured for three years was proved to be superior to the one cultured for one year.
Abdulateef, Nahla Ahmad Bahgat;Ismail, Manar Mohammad;Aljedani, Hanadi
Asian Pacific Journal of Cancer Prevention
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제15권1호
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pp.221-227
/
2014
Background: Aberrant phenotypes in acute leukemia have variable frequency and their prognostic and predictive relevance is controversial, despite several reports of clinical significance. Aims: To determine the prevalence of aberrant antigen expression in acute leukemia, assess clinical relevance and demonstrate immunophenotype-karyotype correlations. Materials and Methods: A total of 73 (40 AML and 33 ALL) newly diagnosed acute leukemia cases presenting to KAMC, Kingdom of Saudi Arabia, were included. Diagnosis was based on WHO criteria and FAB classification. Immunophenotyping by flow cytometry, conventional karyotyping and fluorescence in situ hybridization for gene rearrangements were performed. Results: Aberrant antigens were detected in 27/40 (67.5%) of AML and in 14/33 (42.4%) in ALL cases. There were statistically significant higher TLC in Ly+ AML than in Ly-AML (p=0.05) and significant higher blast count in ALL with aberrant antigens at presentation and day 14 (p=0.005, 0.046). There was no significant relation to clinical response, relapse free survival (RFS) or overall survival (p>0.05), but AML cases expressing ${\geq}2$ Ly antigens showed a lower median RFS than those expressing a single Ly antigen. In AML, CD 56 was expressed in 11/40. CD7 was expressed in 7/40, having a significant relation with an unfavorable cytogenetic pattern (p=0.046). CD4 was expressed in 5/40. CD19 was detected in 4/40 AML associated with M2 and t (8; 21). In ALL cases, CD33 was expressed in 7/33 and CD13 in 5/33. Regarding T Ag in B-ALL CD2 was expressed in 2 cases and CD56 in 3 cases. Conclusions: Aberrant antigen expression may be associated with adverse clinical data at presentation. AML cases expressing ${\geq}2$ Ly antigens may have shorter median RFS. No specific cytogenetic pattern is associated with aberrant antigen expression but individual antigens may be related to particular cytogenetic patterns. Immunophenotype-karyotype correlations need larger studies for confirmation.
Various related factors and tissue changes in vitro and in vivo were observed to investigate the efficacy of HYBH on atopic dermatitis. The results are described below. HYBH improved the atopic dermatitis symptoms by naked eye examination, and significantly decreased dermatitis clinical index at 14 weeks. HYBH significantly decreased CD4+/CD45+, CD4+, CD8+, CD3+/CD69+ immune cell ratios in PBMC by 28%, 16%, 30%, 26% and 22% respectively. HYBH significantly decreased CD11b+/Gr-1+, CD3 immune cell ratios in dorsal skin by 35.3% and 67.5% respectively. HYBH significantly decreased the expression of IL-4 and IFN-${\gamma}$ in spleen by 23% and 15% respectively. HYBH significantly decreased the production rate of IL-5, IL-13 and histamine in serum by 17%, 23%, and 8.8% respectively and increased IL-17 production by 17%. HYBH significantly decreased immunoglubulins IgG1 and IgE production in serum. The results above indicated that treatment of HYBH improved atopic dermatitis symptoms by anti-oxidant activity and immune modulation activity as a clinical evidence. Also, different fermentation conditions using various microbial strains should be accumulated as the clinical evidence for broad application in the future.
Single crystal $CdGa_2Se_4$ layers were grown on a thoroughly etched semi-insulating GaAs(100) substrate at $420^{\circ}C$ with the hot wall epitaxy (HWE) system by evaporating the polycrystal source of $CdGa_2Se_4$ at $630^{\circ}C$ prepared from horizontal electric furnace. The photocurrent and the absorption spectra of $CdGa_2Se_4$/SI(Semi-Insulated) GaAs(100) are measured ranging from 293K to 10K. The temperature dependence of the energy band gap of the $CdGa_2Se_4$, obtained from the absorption spectra was well described by the Varshni's relation, $E_g$(T) = 2.6400 eV - $(7.721{\times}10^{-4}\;eV/K)T^2$/(T + 399 K). Using the photocurrent spectra and the Hopfield quasicubic model, the crystal field energy$({\Delta}cr)$ and the spin-orbit splitting energy$({\Delta}so)$ for the valence band of the $CdGa_2Se_4$ have been estimated to be 106.5 meV and 418.9 meV at 10 K, respectively. The three photocurrent peaks observed at 10 K are ascribed to the $A_{1^-},\;B_{1^-},\;and\;C_{11^-}$ exciton peaks.
Jung Ho Lee;Brian H Lee;Soyoung Jeong;Christine Suh-Yun Joh;Hyo Jeong Nam;Hyun Seung Choi;Henry Sserwadda;Ji Won Oh;Chung-Gyu Park;Seon-Pil Jin;Hyun Je Kim
Genomics & Informatics
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제21권2호
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pp.18.1-18.11
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2023
Immunologists have activated T cells in vitro using various stimulation methods, including phorbol myristate acetate (PMA)/ionomycin and αCD3/αCD28 agonistic antibodies. PMA stimulates protein kinase C, activating nuclear factor-κB, and ionomycin increases intracellular calcium levels, resulting in activation of nuclear factor of activated T cell. In contrast, αCD3/αCD28 agonistic antibodies activate T cells through ZAP-70, which phosphorylates linker for activation of T cell and SH2-domain-containing leukocyte protein of 76 kD. However, despite the use of these two different in vitro T cell activation methods for decades, the differential effects of chemical-based and antibody-based activation of primary human T cells have not yet been comprehensively described. Using single-cell RNA sequencing (scRNA-seq) technologies to analyze gene expression unbiasedly at the single-cell level, we compared the transcriptomic profiles of the non-physiological and physiological activation methods on human peripheral blood mononuclear cell-derived T cells from four independent donors. Remarkable transcriptomic differences in the expression of cytokines and their respective receptors were identified. We also identified activated CD4 T cell subsets (CD55+) enriched specifically by PMA/ionomycin activation. We believe this activated human T cell transcriptome atlas derived from two different activation methods will enhance our understanding, highlight the optimal use of these two in vitro T cell activation assays, and be applied as a reference standard when analyzing activated specific disease-originated T cells through scRNA-seq.
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