• Title/Summary/Keyword: spots

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Proteome Analysis of various types of Panax ginseng using 2-Dimensional Electrophoresis (인삼, 산양삼 및 산삼의 부위별 Proteome분석)

  • We, Jong-Sung;Park, Hee-Soo;Kwon, Ki-Rok
    • Journal of Pharmacopuncture
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    • v.10 no.2 s.23
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    • pp.5-18
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    • 2007
  • Objectives : The purpose of this study was to obtain an objective differentiating method for various types of Panax ginseng: ginseng, cultivated wild ginseng, and natural wild ginseng which are distinctive according to their growing environment. Methods : The roots, stem, and leaves of several types of ginseng were collected and comparative analysis of proteome was conducted on each part using 2-DE and the results examined. Results : 1. Proteome images of the respective parts within the samples showed spot-matching in most cases, suggesting that they are genetically identical panax ginseng. 2. Similar distribution patters were seen within the different parts of the Panax ginseng: ginseng, Chinese cultivated wild ginseng, and the 5 and 10 years old Korean cultivated wild ginseng. 3. For a quantitative evaluation of spots showing differences among the samples, 102 spots from the roots, 109 spots from the stems, and 132 spots form the leaves which showed a difference were selected and centrifugal identification was conducted. 4. Peculiar proteins from each respective part of the Panax ginseng were identified and the top 20 spots with significant differences were selected and analyzed in order to provide a differentiation rate among the samples. The accuracy rate ranged between 23.0-38.8%. 5. Differentiation rate of the top 10 spots with significant differences showed a 50-85% accuracy rate, and the differentiation rate was especially high for the stem of Chinese cultivated wild ginseng and Korean cultivated wild ginseng.

Automated Method of Landmark Extraction for Protein 2DE Images based on Multi-dimensional Clustering (다차원 클러스터링 기반의 단백질 2DE 이미지에서의 자동화된 기준점 추출 방법)

  • Shim, Jung-Eun;Lee, Won-Suk
    • The KIPS Transactions:PartD
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    • v.12D no.5 s.101
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    • pp.719-728
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    • 2005
  • 2-dimensional electrophoresis(2DE) is a separation technique to identify proteins contained in a sample. However, the image is very sensitive to its experimental conditions as well as the quality of scanning. In order to adjust the possible variation of spots in a particular image, a user should manually annotate landmark spots on each gel image to analyze the spots of different images together. However, this operation is an error-prone and tedious job. This thesis develops an automated method of extracting the landmark spots of an image based on landmark profile. The landmark profile is created by clustering the previously identified landmarks of sample images of the same type. The profile contains the various properties of clusters identified for each landmark. When the landmarks of a new image need to be fount all the candidate spots of each landmark are first identified by examining the properties of its clusters. Subsequently, all the landmark spots of the new image are collectively found by the well-known optimization algorithm $A^*$. The performance of this method is illustrated by various experiments on real 2DE images of mouse's brain-tissues.

Multi-slit prompt-gamma camera for locating of distal dose falloff in proton therapy

  • Park, Jong Hoon;Kim, Sung Hun;Ku, Youngmo;Kim, Chan Hyeong;Lee, Han Rim;Jeong, Jong Hwi;Lee, Se Byeong;Shin, Dong Ho
    • Nuclear Engineering and Technology
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    • v.51 no.5
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    • pp.1406-1416
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    • 2019
  • In this research, a multi-slit prompt-gamma camera was developed to locate the distal dose falloff of the proton beam spots in spot scanning proton therapy. To see the performance of the developed camera, therapeutic proton beams were delivered to a solid plate phantom and then the prompt gammas from the phantom were measured using the camera. Our results show that the camera locates the 90% distal dose falloff (= d90%), within about 2-3 mm of error for the spots which are composed $3.8{\times}10^8$ protons or more. The measured location of d90% is not very sensitive to the irradiation depth of the proton beam (i.e., the depth of proton beam from the phantom surface toward which the camera is located). Considering the number of protons per spot for the most distal spots in typical treatment cases (i.e., 2 Gy dose divided in 2 fields), the camera can locate d90% only for a fraction of the spots depending on the treatment cases. However, the information of those spots is still valuable in that, in the multi-slit prompt-gamma camera, the distal dose falloff of the spots is located solely based on prompt gamma measurement, i.e., not referring to Monte Carlo simulation.

Studies on a pair of small spot of nonsexual gland hind of the larvae in Bomsyx mori L. (2) (유충의 생식후원선이 아닌 한 쌍의 소반점에 관한 조사연구 (2))

  • 윤종관;사기언
    • Journal of Sericultural and Entomological Science
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    • no.12
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    • pp.17-20
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    • 1970
  • Occasionally, We make mistake of discrimination of sex since a pair of small spots around tile abdomen of 9th abdominal of males and posterior spots of females of the silkworms larvae are found at almost same position. As already have reported, more larvae which have the small spots were found in Chinese race than the Japanese. This research has been conducted in order to grasp the rate of appearance of the small spotted larvae hereditarily when hybridize with different race (F$_1$) 1. According to the first report, average 17,8% of the small spotted larvae are found in the Japanese race and 57.0% in the Chinese, but my re-invested data which was carried out recently shows that average 13.6% in the former case and 37.8% in the latter. Those new data are supposed to be come to a conclusion that the figures are flexible but in any case high frequency of appearance of the larvae were found in the Chinese race than the Japanese (Reference Table 1 ) 2. Miscalculated ratio of the larvae from males to females are 1.2-2.6%, and from females to males are found 0.5%-0.9% in the Japanese race, In case of the Chinese race, 7.1-9.4% in tile former and 2.9-3.4% in the latter. Those data also shows that more of the larvae found in Chinese race. 3. The larvae of small spotted and non-spotted are also seperated when hlybridize with different mating types and races. 4. More small spotted larvae are seen when hybridize with less appeared of the small spots of females and males which have the small spots than more appeared of the small spots of females with none spotted of the males (Reference Table 2. C.G.)B.F.). 5. More larvae of the small spots and found in case of hybridize in a group of having small spots than none of the spots (H>E). 6. With the exception of the case (A.B), in the same type of cross breeding (C.D, E.F, G,H), more larvae of the smal1 spots are also found in case of hybridize with males of having the spots than none of the spots.

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Changes in the Polypeptide Patterns of Oat Root Tips Exposed to Alachlor (Alachlor에 의한 귀리 근단(根端) 분열조직(分裂組織)의 단백질(蛋白質) Pattern의 변이(變異))

  • Kwon, S.W.;Park, K.I.;Kim, J.C.
    • Korean Journal of Weed Science
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    • v.12 no.4
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    • pp.368-373
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    • 1992
  • The effect of alachlor treatment on protein synthesis was studied. Protein synthesis was inhibited by $1{\times}10^{-4}$ M and $1{\times}10^{-3}$M of alachlor 5.8% and 86.5%, respectively, while did not occur blow $1{\times}10^{-5}$M alachlor. Soluble protein of alachlor treated oat root tips was examined by polyacrylamide gel electrophoresis. The proteins extracted from oat root tips showed that they were made up of subunits blow 100 kd polypeptides by SDS-PAGE. As compared to control, high molecular proteins(above 47 kd) were inhibited of oat root treated with alachlor, while low molecular proteins(below 23 kd) were increased. Two-D gels showed that alachlor caused decrease(1-6 spots) or increase(7-10 spots) in number of polypeptides on silver staining. The intensity of some polypeptides of soluble proteins (molecular mass of 83 kd : 1, 2 spots, 70 kd : 3, 4 spots, and 47.5 kd : 5, 6 spots) decreased in alachlor treatment, whereas the intensity of other peptide bands (20 kd : 7 spot and 16 kd : 8, 9, 10 spots) increased. Oat root tip proteins present in the neutral zone are masked by diffusing of major proteins, but proteins in acid zone are resolved minor proteins.

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Possible Process of Safflower Seed on New Bone formation by 2-Dimensional Electrophoresis (이차원적 전기영동을 이용한 홍화씨의 신생골 형성 기작에 관한 연구)

  • 라도경;정태성;김종수;송해룡;김용환;강정부;강호조;연성찬;신기욱
    • Journal of Veterinary Clinics
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    • v.19 no.1
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    • pp.49-54
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    • 2002
  • Korean safflower (Carthami Flos) seed has been known to have healing effects on both bone fracture and osteoporosis. On the base of such a notice, this experiment was carried out to explore the effects of safflower seed on bone formation and bone repair. In addition, the healing mechanism was evaluated by analysing serum after feeding the seed to experimental. animals. The effect of Korean safflower seed were evaluated with 40 rats,3-month old. Forty Sprague-Dawley rats composed of 20 male and 20 female were underwent unilateral tibial defect and then fastened with unilateral fixators. The operated rats were divided into two groups depending on the composition of diet, such as positive control group fed normal diet (C-OP group) and safflower seed group fed 30% of safflower seed diet and 70% of normal diet (S-OP group). Postoperative radiographys were taken once in 2 weeks to evaluate callus formation for operated groups. In addition, a possible protein spots involved in bone recovery were examined using 2-Dimensional Gel Electrophoresis (2-DE). The comparison of the radiography between C-OP and S-OP group were showed that the safflower seed diet appeared to stimulate the formation of callus in the rat. On the images of 2-BE, it was able to identify possible five protein spots, having pl from 4 to 5 and molecular weight range from 24 to 26 kDa, involved in bone formation and repair, since no differing protein spots were found the two between groups except the five spots. No differences were observed between two groups before operation, but clear and bigger protein spots were observed from the S-OP group compared with C-OP group on 6 and 9 weeks post operation. These protein spots were, however, showed similar sizes and densities between two groups in 12 weeks later. The transformation of protein spots was suggested that these protein spots were involved in bone formation and recovery, in addition safflower seed might induce the formation of factors and activate these factors. In conclusion, this study suggest that safflower seed influence a variety of factors in the course of bone formation or the periods of remedy.

Identification of Bovine Pregnancy-Specific Whey Proteins using Two-Dimensional Gel Electrophoresis

  • Han, Rong-Xun;Choi, Su-Min;Kim, Myung-Youn;Quan, Yan Shi;Kim, Baek-Chul;Diao, Yun Fei;Koqani, Reza;Park, Chang-Sik;Jin, Dong-Il
    • Reproductive and Developmental Biology
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    • v.32 no.4
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    • pp.255-261
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    • 2008
  • The early diagnosis of bovine pregnancy is an essential component of successful reproductive planning on farms, because lack of bovine pregnancy over the long term results in reproductive failure and low milk yield-the latter of which is a special concern on dairy farms. This study was designed to identify early pregnancy-specific whey proteins in bovine, by comparing milk samples collected from cattle during pregnancy (Days 30 and 50) and from non-pregnant cattle. In this study, differentially expressed proteins in five pregnant and five non-pregnant Holstein dairy cattle were investigated and compared, using proteomics analysis. The first dimension was applied to a pH $3.0{\sim}10.0$ strip, by loading a 2-mg milk protein sample. After the second-dimension separation was performed, the gels were stained with colloidal Coomassie brilliant blue. The stained gels were scanned and the images were analyzed, to detect variations in protein spots between non-pregnant and pregnant cattle milk protein spots, using ImageMaster, this was followed by analysis with MALDI TOF-MS. Analysis of the 2-DE gel image resulted in a total of approximately $500{\sim}600$ protein spots, of which 12 spots were differentially expressed, six spots were up-regulated, and four spots were down-regulated; two spots were identified as pregnancy-specific proteins. These proteins were identified as lactoferrin, NA-DH dehydrogenase subunit 2, albumin, serum albumin precursor and transferrin. Our results via 2-D PAGE analysis revealed composite profiles of several milk proteins related to early bovine pregnancy, implying the possible use of these milk proteins in the early detection of bovine pregnancy.

Proteomics of Liver Tissues of Bombina orientalis Following Exposure to Nonylphenol (Proteomics를 이용한 내분비계장애물질인 nonylphenol에 노출된 무당개구리의 단백질 발현 비교 연구)

  • Kim, Ho-Seung;Gye, Myung-Chan
    • Korean Journal of Ecology and Environment
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    • v.36 no.3 s.104
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    • pp.369-374
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    • 2003
  • Nonylphenol (NP), an well known aquatic contaminant, has been known to induce abnormalities in various aquatic animals. In an effort to develop proteome in the study of aquatic contamination of NP and its impact on the amphibia, protein changes in liver tissues of Korean red bellied frog, Bombina orientalis was investigated following the NP exposure. NP was administered intraperitoneally to male B. orientalis at 10 mg/kg body weight. At 48 and 96h after the treatment, the frog livers were sampled, and the protein fraction was separated using two dimensional gel electrophoresis (2D/E) and visualized with Coomassie brilluant blue staining. The 2D/E Images of the tissue from the animals treated with NP showed marked changes of protein spots (about 20% of total protein spots). Analysis of the 50-60 separated spots allowed identification of the major protein changes in the overall pattern for the stressor (NP) by time (0,48 and 96 h). At 48h after treatment, 8 spots were increased and 12 spots were reduced. Then, at 96h after treatment, 10 spots were increased and 8 spots were reduced. In total, approximately 29% of liver proteins showed the altered expression following the NP treatment. It is suggested that protein expression was repressed by blocking of certain metabolisms at 48 hand induced by the synthesis of new proteins for adaptation at 96 h following NP exposure. This application for 2D/E analysis may show promise in searching biomarkers for environmental proteomics in amphibians.

Study on Location Characteristics and Establishment Time of Cherry-blossom Attractions in the Modern Era Busan (근대 부산에서 벚꽃 명소의 입지적 특성과 성립 시기에 관한 연구)

  • Kang, YoungJo
    • Journal of the Korean Institute of Landscape Architecture
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    • v.44 no.5
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    • pp.47-58
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    • 2016
  • In modern era Busan, newspaper articles about cherry blossom attractions from FuzanNippo and ChosenJiho have changed from places of landmark cherry trees to recreational activities under the cherry blossom. This means that the place characteristics of the cherry blossom attractions helped transform modern Busan. This study is to clarify the real image of the cherry blossom attractions where they were and when it was established in modern Busan. In order to discuss the location characteristics and the timing of identification as it changed from cherry-blossom viewing spots to picnic spots under the cherry blossom, current articles published in the FuzanNippo and ChosenJiho were collected. This study results are as follows: First of all, cherry blossom attractions are located in private gardens, gardens at hot spring inns, public lands such as schools, temples, reservoirs and malls such as Dongnae hot spring and the Midoricho red-light district. The location feature was that they were found at the edges of settlement environments, at the interface of city and natural spaces in modern Busan. Secondly, newspaper articles about cherry blossom attractions gradually changed from cherry blossom viewing spots to picnic spots under the cherry blossom, which became the peak of the cherry blossom attractions in modern Busan. The main focus of cherry blossom attractions changed from cherry-blossom viewing to picnicking under cherry blossoms around 1920. This means that the establishment of cherry blossom attractions can be seen around 1920. Articles of cherry-blossom viewing picked up sites not easy to access such as private gardens and reservoirs, articles about picnic spots under cherry blossoms noted public places that everyone could access. Cherry blossom attractions sites became spring resorts in modern Busan.

A Study on Assessing Disaster Response Capacity for Coastal Residents (연안거주민에 대한 재해대응능력 평가 연구)

  • Kang, Tae-Soon;Lee, Seung-Rok;Lee, Jong-Sup;Kim, Jongkyu
    • Journal of Fisheries and Marine Sciences Education
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    • v.26 no.5
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    • pp.979-990
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    • 2014
  • Recently the frequency of coastal disasters caused by global warming is increasing and the damage is becoming greater. Therefore, the Korean government is establishing various policies and measures to minimize damage. For disaster prevention, this study will evaluate the disaster response capacity of each local resident(Eup/Myeun/Dong) in coastal areas through the survey. The purpose of this study is to quantitatively understand the disaster response capacity and analyze spatial autocorrelation between hot spots(vulnerable area) and cold spots. Thus this study was conducted a survey of 311 towns(Eup/Myeun/Dong) about the disaster response capacity of coastal residents. As a result, Namhae has the highest average score(4.9). On the contrary, Hampyeong has the lowest(1.6). Coastal residents in Namhae seem to have better understanding of first aid and preventive maintenance. But coastal residents in Hampyeong seem to not have these characteristics. Afterwards, this study builds a database of disaster response capacity, and analyzes it using the spatial autocorrelation method. Finally, the area of hot spots and cold spots for disaster response capacity was quantitatively detected.