• 제목/요약/키워드: Th17

검색결과 3,276건 처리시간 0.027초

Reduced Interleukin-17 and Transforming Growth Factor Beta Levels in Peripheral Blood as Indicators for Following the Course of Bladder Cancer

  • Baharlou, Rasoul;Vasmehjani, Abbas Ahmadi;Dehghani, Ali;Ghobadifar, Mohamed Amin;Khoubyari, Mahshid
    • IMMUNE NETWORK
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    • 제14권3호
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    • pp.156-163
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    • 2014
  • Interleukin (IL) 17 is produced by T-helper (Th) 17 with a vigorous effect on cells of the immune system playing important roles in pathogenesis of immune-mediated diseases, including autoimmune disorders and cancers. Therefore, the aim of current study was to determine the serum levels of IL-6, IL-17, and transforming growth factor beta (TGF-${\beta}$) in Iranian bladder cancer patients, and to correlate them with disease status. Blood samples were collected from 40 bladder cancer patients and 38 healthy individuals with no history of malignancies or autoimmune disorders. The serum levels of IL-6, IL-17, and TGF-${\beta}$ were measured by the enzyme-linked immunosorbent assay (ELISA). The results showed that the levels of IL-17 (p<0.0001) and TGF-${\beta}$ (p<0.0001) were significantly lower in the patients compared to the controls. No significant differences in the level of serum IL-6 (p=0.16) was observed between the patients and controls. In addition, demographic characteristics between control and patients groups were not significantly different. As most of the cases studied in this investigation were in stage I and II, it is concluded that reduced Th17-related cytokines can be used as indicators for following the course and clinical stages of bladder carcinoma progress and immune response to cancer.

구난로봇을 위한 전신 기구학 제어 연구 (A Study of Whole Body Kinematic Control for a Rescue Robot)

  • 홍성일;이원석;강신천;강윤식;박용운
    • 한국군사과학기술학회지
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    • 제17권6호
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    • pp.853-860
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    • 2014
  • This paper introduces a Korean rescue robot and presents a whole body kinematic control strategy. The mission of the rescue robot is to move and lift patients or soldiers with impaired mobility in the battlefields, hospitals and hazardous environments. In order for a robot to rescue and assist humans, reliable mobility in various environments, large load carrying capacity, and dextrous manipulability are required. For these objects the robot has variable configuration mobile platform with tracks, dual arm manipulator, and two types of grippers. The electric actuators provide the strength to lift a wounded soldier up to 120 kg using whole body joints. To control the robot with multi degree of freedom, we need to synthesize complex whole-body behaviors, and to manage multiple task primitives systematically. We are to present a whole body kinematic control methodology, and demonstrate its effectiveness through numerical simulations.

조선시대 제주도의 기상재해와 관민(官民)의 대응 양상 (Meteorological Disaster of Jeju Island in Chosun Dynasty and the Response Aspect of Government and Islanders)

  • 김오진
    • 대한지리학회지
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    • 제43권6호
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    • pp.858-872
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    • 2008
  • 본 연구는 사료를 기초로 조선시대 제주도의 기상재해에 대하여 살펴보고, 정부와 제주민들은 이에 어떻게 대응했는지를 분석하였다. 조선시대 제주도의 기상 특이일 기록 건수는 17세기가 가장 많았고, 18세기, 16세기, 15세기, 19세기 순으로 나타났다. 기상재해의 유형별로는 풍해가 가장 많았고, 수해, 한해(旱害), 설동해 순으로 나타났다. 지역별로는 제주목이 풍해와 수해가 많았고, 대정현은 한해가 많았다. 기상재해가 발생하면 기근으로 이어지는 것이 상례였다. 정부에서는 한반도의 곡식을 제주도로 이전하여 백성을 구제하였으며, 이를 위해 갈두진창, 나리포창, 제민창을 설치하였다. 또한 제주도 백성을 평안도 등 한반도로 이주시켜 만성적인 기근을 해결하고자 했다. 이상 기후에 대응하여 제주도 농민들은 답전, 바령, 복토, 방풍 등의 농법을 행하였고, 해민들은 환전, 석력 선적 등의 항해술을 행하였다.

Anti-apoptotic Effects of House Dust Mite, S100A8 and S100A9 on Spontaneous Apoptosis of Neutrophils in Coculture with Immune Cells and in the Presence of T Helper Cytokines

  • Kim, In Sik;Lee, Ji-Sook
    • 대한의생명과학회지
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    • 제21권2호
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    • pp.122-125
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    • 2015
  • House dust mite (HDM) as a major allergen and damage-associated molecular pattern (DAMP) such as S100A8 and S100A9 trigger the pathogenesis and severity of allergic disease such as asthma. Regulation of neutrophil apoptosis is an important immune response and its dysregulation is involved in pathogenesis of allergic diseases. In this study, we examined the effects of HDM, S100A8 and S100A9 on spontaneous apoptosis of normal neutrophils. We considered the importance of the difference between in vitro and in vivo results and developed a new in vitro system consisting of a combination of immune cells and T helper (Th) cytokines. Extract of Dermatophagoides pteronyssinus (DP), S100A8, and S100A9 inhibited neutrophil apoptosis in culture of neutrophils alone without other leukocytes. DP and S100A8 more strongly suppressed neutrophil apoptosis in combinations of neutrophils, eosinophils, lymphocytes or monocytes than in a culture of neutrophils alone. Anti-apoptotic effect of S100A9 in the mixture of immune cells was similar to that in neutrophils. DP, S100A8, and S100A9 blocked neutrophil apoptosis, regardless of pretreatment with a T helper (Th) 1 cytokine (IFN-$\gamma$), Th2 cytokines (IL-4 and IL-10), a Th9 cytokine (IL-9), a Th17 cytokine (IL-17), a Treg-producing cytokine (TGF-$\beta$). These findings may enable elucidation of allergy pathogenesis due to HDM and DAMP.

서양복식사에 나타난 남성복 장식에 관한 연구 (A Study on the Decoration of Men's Western Costume)

  • 정화연
    • 한국의상디자인학회지
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    • 제9권2호
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    • pp.31-48
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    • 2007
  • The purpose of the this study is to make a historical review of changes in the structural decorations of men's costume from ancient times to modern times and to provide basic materials for developing handicraft decoration techniques and sewing methods in contemporary fashion. Their gorgeousness of collars and sleeves reached its peak along with the exaggerated expression of the human body during the Renaissance when people were free from Christian traditions of the Middle Ages and pursued human pleasures. Huge and decorative collars gave great dignity and formality to the wearer. Sleeves were slim and cuffs were small or nonexistent after the French Revolution. Various decorated pockets had been developed since pockets began to be attached to coats in the 17th century. Pockets were at the bottom of coat in the late 17th century, but they were gradually placed much higher on the coat. Buttons began to be used as the tool for sticking fast body to clothes in the 12th century and became extremely sumptuous accessories in the $16th{\sim}18th$ centuries. Men's clothes were simpler and more practical after the French Revolution. The result was that decorative buttons begun to disappear and metal buttons came out for practical purpose. The number of buttons worn on sleeves was also noticeably reduced. This research suggested the possibility that various decoration techniques could create the unique details in the each part of clothes. In order to develop high value-added products, we need to study various decoration-sewing methods and put to practical use them for creative fashion design.

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자료 분석을 통해 본 18세기 원삼(圓衫)의 유래와 착용 (A Study on Wonsam (Korea Wedding Dress) in 18th Century through the Analysis of the Historical Documents and the Excavated Clothing)

  • 장인우
    • 복식
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    • 제64권5호
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    • pp.1-17
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    • 2014
  • This study explores women's Wonsam in the 18th century. Wonsam was women's wedding dress, one of the representative ceremonial garments of Korea. Wonsam began to appear in the excavated clothes around the 18th century, and we can find drawings and records of the period in Yongjae Collections by Kim-kunhaeng. The form of Wonsam after the 17th and 18th centuries showed the changes in which Seop and Mu disappeared in Baeja form of Danryoung(團領) and the right and left symmetry and side slits were highlighted. The change also included wide and long sleeves and Sakdong(색동) colorful strips on the sleeves), Hansam ornaments, and the use of the belt, which means the change of Baeja composition into our traditional costume of the age. Through the Colletions, we notice that women wore Wonsam in different colors and with varying hair accessories according to the nature of ceremony, the social status, and marital status. Concerning Wonsam, the color of clothing for the dead woman was green(喪禮), while that for marriage ceremony was red(婚禮). Wonsam with the light color was for ceremonial clothing(祭禮). The women who served in the palace wore green Wonsam and Geodumi, while a bride at the marriage ceremony wore red Wonsam or a red long-sleeved robe with Jokduri. At the ceremony of Hyeongunorye, women wore Wonsam with a wig. the dead woman wore Yemou.

의성분지(義城盆地)에 분포(分布)하는 백악기(白堊紀) 경상누층군(慶尙累層群)의 셰일에 관(關)한 암석지구화학(岩石地球化學) (Petrogeochemistry of Shales in Cretaceous Gyeongsang Supergroup from the Euiseong Basin, Korea)

  • 이현구;이찬희;김상중
    • 자원환경지질
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    • 제30권1호
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    • pp.1-14
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    • 1997
  • The shales from the Euiseong area are interbedded along the bedding in Cretaceous Gyeongsang Supergroup, which are composed mainly of quartz, plagioclase, K-feldspar and associated with trace amount of biotite, muscovite, chlorite, pyrite, hematite, carbonate and clay minerals. The ratio of $Al_2O_3/Na_2O$ and $K_2O/Na_2O$ in shales from the Shindong Group are ranged from 9.16 to 24.32 and from 1.70 to 5.97, and the Hayang Group ranged from 2.76 to 8.89 and from 0.42 to 2.74, which are negative correlated between $K_2O/Na_2O$ and $Al_2O_3/Na_2O$ against $SiO_2/Al_2O_3$ respectively. Those are suggested that controlled of mineral compositions in shales due to substitution and migration of elements by sedimentation and diagenesis. These shale formation were deposited in basin of terrestrial environments originated from the igneous rocks, and the REE of these rocks are not influenced with diagenesis and hydrothermal alterations on the basis of $Al_2O_3$ versus La, La against Ce, Zr versus Yb, the ratios of La/Ce (0.43 to 0.62) and Th/U (1.11 to 10.71). The narrow range in trace and REE element characteristics as Co/Th (0.63 to 1.92), La/Sc (1.98 to 5.90), Sc/Th (0.58 to 1.30), V/Ni (0.90 to 3.25), Cr/V (0.45 to 1.78), Ni/Co (1.88 to 6.67) and Zr/Hf (30.04~60.87) of these shales argues for inefficient mixing of the simple source lithologies during sedimentation. These rocks also show much variation in $La_N/Yb_N$ (6.90 to 17.02), Th/Yb (4.17 to 13.68) and La/Th (1.98 to 5.90), and their origin is explained by derivation from a mixture of intermediate to acidic igneous rocks.

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Effects of Calorie Restriction on Microsomal Mixed Function Oxidase System and Free Radical in Kidney of SAMP8 Mice

  • kim, Hyun-Jeong;Choi, Jin-Ho;Rhee, Soon-Jae
    • Nutritional Sciences
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    • 제7권4호
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    • pp.189-195
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    • 2004
  • 1bis study investigated the antioxidative effect in kidney of senescence-accelerated prone SAMP8 mice with calorie restriction. 4-weeks-old SAMP8 female mice were divided into 4 groups according to the experimental feeding period: for 4, 8, 12 month, and at natural death. Each group was subdivided into 2 groups, with thirteen mice each one, as ad libitum group and as dietary restriction group (60% of ad libitum feeding amount). After feeding for a given period, the mice were sacrificed to get the following results: among the experimental groups, there wereno significant differences in xanthine oxidase (XOD) activity in their kidney tissues. The contents of cytochrome $P_{450}$ decreased in ad libitum group and dietary restriction group by age. The activity of NADPH-cytochrome $P_{450}$ reductase showed a trend similar to cytochrome $P_{450}$. Superoxide radical content increased with age. At the 4th, 8th and 12 months of the experimental period, the activity in the dietary restriction group was less than that of ad libitum group by as much as 17% 14% and 14% respectively. For hydrogen peroxide, the contents were increased in the ad libitum group with age, while no correlation between content and age was observed in the dietary restriction group. In the 8th and 12th months of the experimental period, the were in the dietary restriction group less than that of ad libitum group counterpart as much as 17% and 20o/c, respectively. For the cellular membrane stability of the kidney, no significant correlation with age was observed in either the dietary restriction group or the ad libitum group. However at the 12th month of the experiment, however, the stability in the dietary restriction group was 11 % higher than that in the ad libitum group. In conclusion, with these results obtained from the SAMP8 mouse model, we demonstrate that dietary restriction has the effects of anti-oxidation and anti-senescence in the kidney.

DDC 지역구분표의 변천과정

  • 이창수
    • 한국도서관정보학회지
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    • 제18권
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    • pp.193-216
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    • 1991
  • The purpose of this study is to analyze the area table of twenty editions of the DDC in order to identify what major changes have been made chronologically. The summaries about which were discussed according to the edition order about the change processes of the most extensive area table of the DDC auxiliary table are as follows. 1. It is from the 17th edition that area table appeared as a special auxiliary table in DDC for the first time and the method of classifying areas like from 930 to 999 which is regional history in history class was taken before the introduction of independent area table. 2. The entry numbers in which the area table was applied increased continuously until the 18th edition but the applied entry number was rather decreased in the 20th edition especially the number was mainly decreased in history class, this is the result of the fact that the entry was classified by area table without enumerating each regional history in history class except for the basic area since the 17th edition but recently at least the area of over national unit according to the necessity of enumerating the entry in regional history within history class. 3. The relocation or revision of area table was made according to the literary warrant of the relevant area by period political and administrative conditions and the request of related organization or classifiers of the area rather than by the topographical features therefore the revision was made chiefly about the highly interested Europe Northern America especially the United States. 4. The entry numbers which were expanded according to area indicate that gradual improvement for the international feature as the revision of edition is repeated is made but because of the expansion of Northern America, especially the United States, regional disproportion is represented by the occupation of 56% in the entire entry numbers of the United States in case of the 20th edition. Lastly, the reasonable reform plans of area table will have to be groped on the basis of the results of analysis above and the consideration about the problems in the development of area table of DDC and the other main classification systems.

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지상 무인체계용 다중입출력 통신 시스템 설계 및 성능시험 분석 (Design and Experiments Analysis of MIMO Communication System for Ground Unmanned Systems)

  • 유지상;최준성;강홍구;백인철;김도종
    • 한국군사과학기술학회지
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    • 제17권5호
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    • pp.643-653
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    • 2014
  • High-capacity video, control and situation awareness data should be transmitted efficiently to control robots properly in the ground unmanned system, which requires the technology maximizing the communication range and the data transmission throughput. This technology is connected to the OFDMA(Orthogonal Frequency Division Multiple Access)-MIMO(Multiple Input Multiple Output) transmission technology under the limited bandwidth and transmission power. In this paper, we design MIMO communication system for ground unmanned systems, and investigate the data reception performance experimentally, comparing with SISO(Single Input Single Output) system. Experiment results show that the data reception performance of MIMO is significantly improved compared to that of SISO, e.g. 4dB gain of sensitivity and 5dB of SNR at the value MPR = 1, for the mobile stations with $2{\times}2$ STBC diversity.