• Title/Summary/Keyword: Gamma Index

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Phylogenetic Analysis and Diversity of Marine Bacteria Isolated from Rhizosphere Soils of Halophyte in Suncheon Bay (순천만에 자생하는 염생식물 근권에서 유래한 해양세균의 계통학적 분석 및 다양성)

  • You, Young-Hyun;Park, Jong Myong;Lee, Myung-Chul;Kim, Jong-Guk
    • Microbiology and Biotechnology Letters
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    • v.43 no.1
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    • pp.65-78
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    • 2015
  • The bacterial diversity of the rhizosphere soil of S. japonica native to Suncheon bay was analyzed. Ninety two strains showing different morphological characteristics were isolated from the soils around the community of S. japonica. Bacterial diversity and distributions were studied by phylogenetic analysis of the partial 16S rDNA sequences. Ninety two strains were partially sequenced and analyzed phylogenetically. These strains were composed of 5 phyla firmicutes (56.5%), gamma-proteobacteria (29.3%), alpha-proteobacteria (5.4%), actinobacteria (5.4%), bacteroidetes (3.3%) and Shannon’s diversity index (H') were different from each of sampling sites (1.675, 1.924 and 2.04). Eleven isolates were presumed to be novel species candidates based on similarity analysis of the 16s rRNA gene sequences. Overall, Firmicutes and gamma-proteobacteria of the rhizosphere soil of S. japonica showed a high diversity.

The Inhibitory Effects of Liriopis Tuber on the Bleomycin-induced lung fibrosis in C57BL/6J mice (맥문동(麥門冬)이 C57BL/6J 생쥐의 Bleomycin 폐섬유화(肺纖維化)에 미치는 영향(影響))

  • Rhee, Hyung-Koo;Jung, Sung-Ki;Jung, Hee-Jae;Lee, Byeong-Sam
    • The Journal of Internal Korean Medicine
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    • v.25 no.4
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    • pp.93-104
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    • 2004
  • Objectives : The aim was to identify the inhibitory effects of Liriopis Tuber on bleomycin-induced lung fibrosis by analysing the changes of imflammatory cell cytokines and SHI(Semiquantitative Histological Index), Materials and Methods : In this study fibrosis prone C57BL/6J mice were used. Control group was treated with blomycin(0.06mg/0.1 ml) by IT(intratracheal) instillation which is a popular method of inducing lung fibrosis and sample group took Liriopis Tuber water extract(38.0mg/10g body weight) orally for 14 days after IT instillation of blomycin. We measured the total and differential count of WBC, $IFN-{\gamma}$ & IL-4 in mice BALF and SHI(Semiquantitative Histological Index) from lung tissues of mice. BALF and lung tissues of mice were taken 14 days after IT instillation of blomycin. Results : In sample group total WBC count, proportion of neutrophil, SHI and IL-4 significantly(p<0.05) decreased, proportion of macrophage significantly(p<0.05) increased and proportion of lymphocyte, $IFN-{\gamma}$ did not decrease significantly. Conclusions : This study suggests that Liriopis Tuber has an inhibitory effects of pulmonary fibrosis by attenuation of inflammation and Th2 immune response. To determine whether this herbal medicine contribute to cure and prophylaxis of pulmonary fibrosis, further studies on the role of $IFN-{\gamma}$ relating to fibrosis are required.

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The Effects of Flammulina velutipes Water Extract on the Activation of Spleen Cell and Macrophage in Mice (팽이버섯 열수추출물이 마우스 비장세포와 대식세포의 증식 및 활성에 미치는 효과)

  • Kim, Kyoung-Ok;Ryu, Hye-Sook
    • The Korean Journal of Food And Nutrition
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    • v.31 no.2
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    • pp.236-241
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    • 2018
  • Flammulina velutipes is an edible mushroom and contains a lot of fiber, vitamin $B_1$, $B_2$, niacin and folic acid. This study was conducted to explore the effects of the Flammulina velutipes mushroom on immune cells and immunity. Th1 cytokine productions as $IFN-{\gamma}$, $TNF-{\alpha}$, and IL-2 were measured in an activated macrophage by Flammulina velutipes water extract in seven concentrations (0, 5, 10, 50, 100, 250, 500, and $1,000{\mu}g/mL$). Also, the splenocyte proliferation index was measured at 48 hours after treatment of the Flammulina velutipes water extract in seven concentrations or mitogen, LPS and ConA. The $IFN-{\gamma}$ and $TNF-{\alpha}$ productions were increased by treatment of the Flammulina velutipes water extract. The $TNF-{\alpha}$ production was significantly higher in the $50{\sim}1,000{\mu}g/mL$ Flammulina velutipes water extract treated macrophages. The $IFN-{\gamma}$ production of macrophages treated with the Flammulina velutipes water extract increased significantly in all groups, and the highest $1000{\mu}g/mL$ concentration. The splenocyte proliferation index was enhanced when the $10{\sim}1,000{\mu}g/mL$ Flammulina velutipes water extracts were treated compared to the control. These primary results suggest that Flammulina velutipes may enhance the immune function by activation of the macrophage and spleen cell.

Effect of High Dose ${\gamma}-irradiation$ on the Physicochemical Properties of Shell Eggs during Storage (고선량 감마선 조사가 신선란의 저장 중 이화학적 특성에 미치는 영향)

  • Moon, Sun-Ae;Song, Kyung-Bin
    • Applied Biological Chemistry
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    • v.43 no.4
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    • pp.260-265
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    • 2000
  • To determine the quality change of the irradiated eggs during storage, fresh shell eggs were irradiated using $^{60}Co$ at 0, 1, 5, 10, 30 kGy and stored for 30 days. The york index, color, pH, viscosity, egg weight, and SDS-PAGE profile of the irradiated eggs were examined. During storage, york index values of the irradiated eggs and the control were decreased and the increase of dose decreased yolk index. However, the yolk index values were increased temporarily at 10 kGy and 30 kGy. The yolk color had a bright yellow with increases in dose level and there was no significant change during storage. The albumen viscosities were decreased with increases in dosage and were decreased during storage. Also, the albumen pH values of the irradiated eggs were higher than that of the control and were increased during storage. The weight losses of eggs were increased during storage and there were no significant changes by dose level. SDS-PAGE profile of the egg white proteins of the shell eggs showed the change in molecular weight distribution and had aggregation pattern as well as degradation. CD and fluorescence spectroscopy study showed changes in the secondary and tertiary structure of egg white proteins by ${\gamma}-irradiation$. Therefore, this study clearly indicates that irradiation dose of eggs should be appropriate to prevent the loss of egg qualities.

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A Study on the Correlation Analysis of EEG and Vibraimage due to Auditory and Olfactory Stimulation (청각 및 후각자극에 의한 뇌파(EEG)와 진동이미지기술의 상관성 분석에 관한 연구)

  • Kim, Jung-Min;Kim, Myung-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.6
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    • pp.4291-4297
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    • 2015
  • EEG has been used to measure the emotion of amenity and discomfort in the interior space. EEG is limited to the experiment, because it is a equipment of contact type. However, Vibraimage can measure the emotion with a web camera. Because Vibraimage is a equipment of non-contact type, it is more suitable for the interior space than EEG. Therefor, it tries to find a correlation variable between EEG and Vibraimage to measure the human emotions. In this study, it were analyzed correlation of EEG and vibraimage due to variation of loudness 60[dB], 90[dB] and rosemary, jasmine scents. Check the health status of subjects who were selected 3 male students, and the period of this experiment was about months. The condition of the environmental test room was in temperature 25[$^{\circ}C$], relative humidity 50[RH%], air current speed 0.02[m/s] and illuminance 1000[lux]. It were analyzed correlation of twenty-three index of EEG(absolute ${\theta}$, relative ${\theta}$, absolute $S{\alpha}$, relative $S{\alpha}$, absolute ${\alpha}$, relative ${\alpha}$, absolute ${\beta}$, relative ${\beta}$, absolute $\gamma$, relative $\gamma$, absolute $F{\alpha}$, relative $F{\alpha}$, absolute SMR, relative SMR, $SMR/{\theta}$, $SMR+M{\beta}/{\theta}$, absolute $H{\beta}$, relative $H{\beta}$, $H{\beta}/{\alpha}$, absolute $M{\beta}$, relative $M{\beta}$, SEF50, ASEF50) and ten index of Vibraimage(Aggression, Stress, Tension/Anxiety, Suspect, Balance, Charm, Energy, Self regulation, Inhibition, Neuroticism). As a result, I was found that relative ${\gamma}$ index of EEG and neuroticism index of Vibraimage have a high correlation as (${\pm}$).414 and (${\pm}$).424.

Quantitative Evaluation of Gated Radiation Therapy Using Gamma Index Analysis (감마지표 분석을 통한 호흡연동방사선치료의 정량적 평가)

  • Ma, Sun Young;Choi, Ji Hoon;Jeung, Tae Sig;Lim, Sangwook
    • Progress in Medical Physics
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    • v.24 no.3
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    • pp.198-203
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    • 2013
  • Generally, to evaluate gated radiation therapy, moving phantoms are used to simulate organ motion. Since the target moves in every direction, we need to take into account motion in each direction. This study proposes methods to evaluate gated radiation therapy using gamma index analysis and to visualize adequate gating window sizes according to motion ranges. The moving phantom was fabricated to simulate motion in the craniocaudal direction. This phantom consisted of a moving platform, the I'm MatriXX, and solid water phantoms. A 6 MV photon filed with a field size of $4{\times}4cm^2$ was delivered to the phantom using the gating system, while the phantom moved in the 1-, 2-, 3-, 4-, and 5-cm motion ranges. The gating windows were set at 40~60%, 30~40%, and 0~90%, respectively. The I'm MatriXX acquired the dose distributions for each scenario and the dose distributions were compared with a $4{\times}4cm^2$ static filed. The tolerance of the gamma index was set at 3%/3 mm. The greater the gating window, the lower the pass rate, and the greater the motion range, the lower the pass rate in this study. In case treatment without gated radiation therapy for the target with motion of 2 cm, the pass rate was less than 96%. But it was greater than 99% when gated radiation therapy was used. However gated radiation therapy was used for the target with motion greater than 4 cm, the pass rate could not be greater than 97% when gating window was set as 30~70%. But when the gating window set as 40~60%, the pass rate was greater than 99%.

The Relation between the Process Capability Index and the Quality Assurance Level Considering Various Conditions (다양한 상황을 고려한 공정능력지수와 품질보증수준의 관계)

  • 조문수;임태진
    • Journal of Korean Society for Quality Management
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    • v.30 no.2
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    • pp.130-151
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    • 2002
  • This paper investigates the relation between the Process capability index(PCI) and the quality assurance level under various conditions. The effect of the off-targetness of the process mean, deviation from the nomality, the estimation error, and tile measurement error on the quality assurance level is evaluated. Various distributions such as the Student-t, the chi-square, the gamma, the Weibull, and the log-normal distributions are considered to evaluate the deviation from the nomality. The quality levels under abnormal conditions turn out to be severely different from that under the standard condition. We provide tables and graphs of the quality assurance level on various abnormal conditions. In order for the industry users to use the PCI properly, they should refer to the tables and graphs, especially when they are not certain about the standard assumptions on which the PCI depends.

A Study on the Effect of Herbal-acupuncture with Eucomiae Cortex Solution at Joksamni$(ST_{36})$ on Collagen-induced Arthritis (족삼리(足三里) 두충약침(杜沖藥鍼)이 Collagen-induced Arthritis에 미치는 영향)

  • Kang, Jae-Hui;Lee, Hyun
    • Journal of Acupuncture Research
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    • v.23 no.3
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    • pp.129-142
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    • 2006
  • Objectives : The purpose of this study is to observe the effects of Eucomiae Cortex herbal-acupuncture solution(EC-HAS) at Joksamni(ST36) on arthritis of mice induced by Collagen II. Methods : The author performed several experimental items. First, it is the cell survival rate of mice lung fibroblasts. Second, it is the incidence rate of arthritis and arthritis index of CIA. Third, it is the levels of IL-6, $TNF-{\alpha}$, $IFN-{\gamma}$, $IL-{\beta}$, IgG, IgM and anti-collagen II in serum and the level of IFN-y,$IFN-{\gamma}$/IL -4 ratio in CIA mouse spleen cell culture. Fourth, it is histological analysis of the mice joint. Fifth, it is expression ratio of $CD3e^+$ to $CD19^+$+ cell, $CD4^+$ to $CD8^+$ cell, $CD69^+/CD3e^+$/cells, $CD11a^+/CD19^+$/cells, $CD11b^+/Gr-1^+$ cells and $CD4^+/CD25^+$ cells. Results & Conclusion : 1. In the EC-HA, the incidence of arthritis and arthritis index were significantly decreased. 2. In EC-HA, the levels of IL-6, $IFN-{\gamma}$, $TNF-{\alpha}$, $IL-1{\beta}$, IgG, IgM and anti-collagen II in serum of CIA mice and the level of $IFN-{\gamma}$, IL-4, $IFN-{\gamma}$/lL-4 ratio in CIA mouse spleen cell culture were significantly decreased. 3. In the histological study, the cartilage destruction and synovial cell proliferation were decreased in the EC-HA, and the collagen fiber expressions in the EC-HA were similar with that of the Normal group. 4. In the EC-HA, the expression ratio of $CD3e^+$ to $CD19^+$ cell and $CD4^+$ to $CD8^+$ cell were similarly maintained as Normal group in lymph nodes, and $CD69^+/CD3e^+$ cells and $CD11a^+/CD19^+$ cells were decreased in lymph nodes, and $CD11b^+/Gr-1^+$ cells and $CD4^+/CD25^+$ cells were decreased in synovium. These results suggest that EC-HA at ST36 has an effect to control synovial cell proliferation and cartilage destruction in rheumatoid arthritis, and to be put to practical use in the future rheumatoid arthritis clinic.

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Dynamic Hepatic Blood Flow Scan of Liver Cirrhosis by Arterialization Index (동맥혈화지표 (Arterialization Index)를 이용한 간경화증의 혈류측정)

  • Kim, I.Y.;Yoo, H.S.;Lee, J.T.;Park, C.Y.
    • The Korean Journal of Nuclear Medicine
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    • v.17 no.2
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    • pp.19-24
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    • 1983
  • The purpose of this study was to develop a method by which the sensitivity of radionuclide liver imaging for detection of liver cirrhosis could be enhanced. Dynamic blood flow scan were performed 21 cases of liver cirrhosis patients by using computerized gamma camera named arterialization index. The results were as follows: 1) Arterialization index were higher in liver cirrhosis comparing to normal value 0.33 and its mean is 2. 02. 2) Comparing to static liver scan, higher sensitivity in dynamic hepatic blood flow scan for detection of liver cirrhosis. Sensitivity for detection of liver cirrhosis is over 90%. 3) There are no correlation between arterialization index and serum albumin level. The use of hepatic dynamic blood flow scan proved effective in detection of liver cirrhosis. However, the test may be used as an aid in distinguishing between normal and pathologic livers.

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Effects of Copper Reduction on Angiogenesis-Related Factors in Recurrent Glioblastoma Cases

  • Jazayeri, Shima;Feli, Alireza;Bitaraf, Mohammad Ali;Dodaran, Masoud Solaymani;Alikhani, Mazdak;Hosseinzadeh-Attar, Mohammad Javad
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.10
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    • pp.4609-4614
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    • 2016
  • Purpose: To evaluate the therapeutic effects of copper reduction on angiogenesis-related factors in patients with glioblastoma multiforme treated by gamma knife radiosurgery. Materials and Methods: In the present block randomized, placebo-controlled trial, fifty eligible patients with a diagnosis of glioblastoma multiforme who were candidates for gamma knife radiosurgery were randomly assigned into two groups to receive daily either 1gr penicillamine and a low copper diet or placebo for three months. The intervention started on the same day as gamma knife radiosurgery. Serum interleukin-6 (IL-6), tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$), vascular endothelial growth factor (VEGF) and copper levels were measured at baseline and after the intervention. The serum copper level was used as the final index of compliance with the diet. In order to control probable side effects of intervention, laboratory tests were conducted at the beginning, middle and end of the study. Results: The patients had a mean age and Karnofsky Performance Scale of 43.7 years and 75 respectively. Mean serum copper levels were significantly reduced in intervention group. Mean survival time was 18.5 months in intervention group vs. 14.9 in placebo group. VEGF and IL-6 levels in the intervention group were also significantly reduced compared to the placebo group and $TNF-{\alpha}$ increased less. Conclusions: It seems that reducing the level of copper in the diet and dosing with penicillamine leads to decline of angiogenesis-related factors such as VEGF, IL-6 and $TNF-{\alpha}$. Approaches targeting angiogenesis may improve survival and can be used as a future therapeutic strategy.