• Title/Summary/Keyword: Six Common Functions

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Salicylic Acid and Wounding Induce Defense-Related Proteins in Chinese Cabbage

  • Kim, Hong-Nam;Cha, Jae-Soon;Cho, Tae-Ju;Kim, Hak-Yong
    • Animal cells and systems
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    • v.7 no.3
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    • pp.213-219
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    • 2003
  • The response of plants to pathogens and wounding is dependent upon very sensitive perception mechanisms. Although genetic approaches have revealed a variety of resistance genes that activate common defense responses, defense-related proteins are not well characterized in plants. Therefore, we used a proteomic approach to determine which defense-related proteins are induced by salicylic acid (SA) and wounding in Chinese cabbage. We found that SA and wounding induce pathogenesis-related protein 1a (PR1a) at both protein and mRNA levels using proteomics and Northern blot analysis, respectively. This indicates that our proteomic approach is useful for identifying defense-related proteins. We also identified several other proteins that are induced by SA or wounding. Among the seven SA-induced proteins identified, four may be defense-related, including defense-related protein, phospholipase D (PLD), resistance protein RPS2 homolog, and L-ascorbate peroxidase. Out of the six wounding-induced proteins identified, three may be defense-related: heat shock cognate protein 70 (HSC70), polygalacturonase, and peroxidase P7. The precise functions of these proteins in plant defense responses await further study. However, identification of the defense-related proteins described in this study should allow us to better understand the mechanisms and signal transduction pathways involved in defense responses in Chinese cabbage.

Xeroderma Pigmentosum Complementation Group F Polymorphisms Influence Risk of Glioma

  • Cheng, Hong-Bin;Xie, Chen;Zhang, Ru-You;Hu, Shao-Shan;Wang, Zhi;Yue, Wu
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.7
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    • pp.4083-4087
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    • 2013
  • We conducted an exploratory investigation of whether variation in six common SNPs of xeroderma pigmentosum complementation group F (XPF) is associated with risk of glioma in a Chinese population. Six single nucleotide polymorphisms (SNPs) were genotyped in 207 glioma cases and 236 cancer-free controls by a 384-well plate format on the Sequenom MassARRAY platform (Sequenom, San Diego, USA). The rs1800067 G and rs2276466 G allele frequencies were significantly higher in the glioma group than controls. Individuals with the rs1800067 GG genotype were at greater risk of glioma when compared with the A/A genotype in the codominant model, with an OR (95% CI) of 2.63 (1.04-7.25). The rs2276466 polymorphism was significantly associated with moderate increased risk of glioma in codominant and dominant models, with ORs (95% CI) of 1.90 (1.05-3.44) and 1.55 (1.07-2.47), respectively. The combination genotype of rs1800067 G and rs2276466 G alleles was associated with a reduced risk of glioma (OR=0.44, 95% CI=0.19-0.98). These findings indicate that genetic variants of the XPF gene have critical functions in the development of glioma.

Dexamethasone-induced muscle atrophy and bone loss in six genetically diverse collaborative cross founder strains demonstrates phenotypic variability by Rg3 treatment

  • Bao Ngoc Nguyen;Soyeon Hong;Sowoon Choi;Choong-Gu Lee;GyHye Yoo;Myungsuk Kim
    • Journal of Ginseng Research
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    • v.48 no.3
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    • pp.310-322
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    • 2024
  • Background: Osteosarcopenia is a common condition characterized by the loss of both bone and muscle mass, which can lead to an increased risk of fractures and disability in older adults. The study aimed to elucidate the response of various mouse strains to treatment with Rg3, one of the leading ginsenosides, on musculoskeletal traits and immune function, and their correlation. Methods: Six Collaborative Cross (CC) founder strains induced muscle atrophy and bone loss with dexamethasone (15 mg/kg) treatment for 1 month, and half of the mice for each strain were orally administered Rg3 (20 mg/kg). Different responses were observed depending on genetic background and Rg3 treatment. Results: Rg3 significantly increased grip strength, running performance, and expression of muscle and bone health-related genes in a two-way analysis of variance considering the genetic backgrounds and Rg3 treatment. Significant improvements in grip strength, running performance, bone area, and muscle mass, and the increased gene expression were observed in specific strains of PWK/PhJ. For traits related to muscle, bone, and immune functions, significant correlations between traits were confirmed following Rg3 administration compared with control mice. The phenotyping analysis was compiled into a public web resource called Rg3-OsteoSarco. Conclusion: This highlights the complex interplay between genetic determinants, pathogenesis of muscle atrophy and bone loss, and phytochemical bioactivity and the need to move away from single inbred mouse models to improve their translatability to genetically diverse humans. Rg3-OsteoSarco highlights the use of CC founder strains as a valuable tool in the field of personalized nutrition.

A Literature Review on the Evaluation of and Interventions for Children's Motor Function (아동의 운동기능 평가 및 중재방법에 관한 문헌 고찰)

  • Sa, Jae-Deok;Park, Hae Yean
    • Therapeutic Science for Rehabilitation
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    • v.10 no.2
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    • pp.53-74
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    • 2021
  • Objective : The purpose of this study was to examine foreign literature on the evaluation and interventions for motor functions in children. Methods : Studies in this review were identified by searching the PubMed, Cochrane Library (Embase) databases from those published form January 2010 to March 2020 using the following keywords: "motor function test" or "motor function measure" or "movement assessment" or "motor proficiency test" or "motor scale" or "motor skill" and children. Results : Of the total 37 identified studies, 14 analyzed evaluations, 23 analyzed interventions, all of which were randomized control trials. Studies on evaluations were increasingly more common, in contrast to studies on interventions for motor functions. The most frequent field of research was rehabilitation. The studies on evaluations included the AIMS and MABC-II, and GMFM was the most frequently used intervention. Interventions were most commonly used in task-oriented training (six studies). Conclusion : This study aimed to provide a basis for therapists to choose effective motor function evaluation and interventions for clinical trials by analyzing studies related to interventions for and evaluation of motor function in children.

Development of regression functions for human and economic flood damage assessments in the metropolises (대도시에서의 인적·물적 홍수피해 추정을 위한 회귀함수 개발)

  • Lim, Yeon Taek;Lee, Jong Seok;Choi, Hyun Il
    • Journal of Korea Water Resources Association
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    • v.53 no.12
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    • pp.1119-1130
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    • 2020
  • Flood disasters have been recently increasing worldwide due to climate change and extreme weather events. Since flood damage recovery has been conducted as a common coping strategy to flood disasters in the Republic of Korea, it is necessary to predict the regional flood damage costs by rainfall characteristics for a preventative measure to flood damage. Therefore, the purpose of this study is to present the regression functions for human and economic flood damage assessments for the 7 metropolises in the Republic of Korea. A comprehensive regression analysis was performed through the total 48 simple regression models on the two types of flood damage records for human and economic costs over the past two decades from 1998 to 2017 using the four kinds of nonlinear equations with each of the six rainfall variables. The damage assessment functions for each metropolis were finally selected by the evaluation of the regression results with the coefficient of determination and the statistical significance test, and then used for the human and economic flood damage assessments for 100-year rainfall in the 7 metropolises. The results of this study are expected to provide the basic information on flood damage cost assessments for flood damage mitigation measures.

Current Status of Intervention Studies on Acupuncture for Parkinson's Disease

  • Kim, Deok Hyun;Sin, Dae Chul;Song, Ho Sueb
    • Journal of Acupuncture Research
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    • v.34 no.3
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    • pp.13-21
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    • 2017
  • Objectives : The purpose of this study was to investigate the effect of acupuncture treatment (AT) in the tendency of increase of the need for AT for the treatment of Parkinson's disease (PD) worldwide and to investigate the advancements in AT research in Korea and the future directions of research on this topic. Methods : Until May 2017, the PubMed, Scopus, Medline, and four Korean databases were searched. The searched keywords were "Parkinson's disease", "Acupuncture", and "Intervention study". The intervention groups from all screened original studies were analyzed and the methods used to determine the effect of AT on PD were examined. Results : A total of 17 studies were grouped by country on the basis of the first author's position, of which 10 studies were conducted in China, four in the United States, two in Korea, and one in Brazil. The most common type of intervention was electroacupuncture (nine studies), followed by AT (six studies), and a combination of AT and bee venom AT (two studies). The most frequently used acupoints in AT were Baihui (GV20), Taichong (LR3), Zusanli (ST36), Sanyinjiao (SP6), and Yanglingquan (GB34). The most commonly used tool for evaluation of PD was the Unified Parkinson's Disease Rating Scale III, which assesses motor functions. Conclusion : The screened studies reported that there were no adverse effects of AT on drug therapy, and AT reduced the dose of drugs used in PD treatment. Future studies on PD treatment with AT should use the acupoints GV20, LR3, ST36, SP6, and GB34, and the meridians Gallbladder meridian and Governor Vessel. Clinical studies on PD should use CONSORT or STRICTA to ensure the quality of national studies and allow the development of new tools for the assessment of the effect of AT on PD using the above criteria.

Distinct mutations in MLH1 and MSH2 genes in Hereditary Non-polyposis Colorectal Cancer (HNPCC) families from China

  • Wei, Wenqian;Liu, Fangqi;Liu, Lei;Li, Zuofeng;Zhang, Xiaoyan;Jiang, Fan;Shi, Qu;Zhou, Xiaoyan;Sheng, Weiqi;Cai, Sanjun;Li, Xuan;Xu, Ye;Nan, Peng
    • BMB Reports
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    • v.44 no.5
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    • pp.317-322
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    • 2011
  • Hereditary non-polyposis Colorectal Cancer (HNPCC) is an autosomal dominant inheritance syndrome. HNPCC is the most common hereditary variant of colorectal cancer (CRC), which accounts for 2-5% CRCs, mainly due to hMLH1 and hMSH2 mutations that impair DNA repair functions. Our study aimed to identify the patterns of hMSH2 and hMLH1 mutations in Chinese HNPCC patients. Ninety-eight unrelated families from China meeting Amsterdam or Bethesda criteria were included in our study. Germline mutations in MLH1 and MSH2 genes, located in the exons and the splice-site junctions, were screened in the 98 probands by direct sequencing. Eleven mutations were found in ten patients (11%), with six in MLH1 (54.5%) and five in MSH2 (45.5%) genes. One patient had mutations in both MLH1 and MSH2 genes. Three novel mutations in MLH1 gene (c.157_160delGAGG, c.2157dupT and c.-64G>T) were found for the first time, and one suspected hotspot in MSH2 (c.1168C>T) was revealed.

Statistical Techniques based Computer-aided Diagnosis (CAD) using Texture Feature Analysis: Applied of Cerebral Infarction in Computed Tomography (CT) Images

  • Lee, Jaeseung;Im, Inchul;Yu, Yunsik;Park, Hyonghu;Kwak, Byungjoon
    • Biomedical Science Letters
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    • v.18 no.4
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    • pp.399-405
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    • 2012
  • The brain is the body's most organized and controlled organ, and it governs various psychological and mental functions. A brain abnormality could greatly affect one's physical and mental abilities, and consequently one's social life. Brain disorders can be broadly categorized into three main afflictions: stroke, brain tumor, and dementia. Among these, stroke is a common disease that occurs owing to a disorder in blood flow, and it is accompanied by a sudden loss of consciousness and motor paralysis. The main types of strokes are infarction and hemorrhage. The exact diagnosis and early treatment of an infarction are very important for the patient's prognosis and for the determination of the treatment direction. In this study, texture features were analyzed in order to develop a prototype auto-diagnostic system for infarction using computer auto-diagnostic software. The analysis results indicate that of the six parameters measured, the average brightness, average contrast, flatness, and uniformity show a high cognition rate whereas the degree of skewness and entropy show a low cognition rate. On the basis of these results, it was suggested that a digital CT image obtained using the computer auto-diagnostic software can be used to provide valuable information for general CT image auto-detection and diagnosis for pre-reading. This system is highly advantageous because it can achieve early diagnosis of the disease and it can be used as supplementary data in image reading. Further, it is expected to enable accurate medical image detection and reduced diagnostic time in final-reading.

스웨덴어 발음 교육상의 몇 가지 문제점 - 모음을 중심으로 -

  • Byeon Gwang-Su
    • MALSORI
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    • no.4
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    • pp.20-30
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    • 1982
  • The aim of this paper is to analyse difficulties of the pronunciation in swedish vowels encountered by Koreans learners and to seek solutions in order to correct the possible errors. In the course of the analysis the swedish and Korean vowels in question are compared with the purpose of describing differences aha similarities between these two systems. This contrastive description is largely based on the students' articulatory speech level ana the writer's auditory , judgement . The following points are discussed : 1 ) Vowel length as a distinctive feature in Swedish compared with that of Korean. 2) A special attention is paid on the Swedish vowel [w:] that is characterized by its peculiar type of lip rounding. 3) The six pairs of Swedish vowels that are phonologically contrastive but difficult for Koreans to distinguish one from the other: [y:] ~ [w:], [i:] ~ [y:], [e:] ~ [${\phi}$:], [w;] ~ [u:] [w:] ~ [$\theta$], [$\theta$] ~ [u] 4) The r-colored vowel in the case of the postvocalic /r/ that is very common in American English is not allowed in English sound sequences. The r-colored vowel in the American English pattern has to be broken up and replaced hi-segmental vowel-consonant sequences . Korean accustomed to the American pronunciation are warned in this respect. For a more distinct articulation of the postvocalic /r/ trill [r] is preferred to fricative [z]. 5) The front vowels [e, $\varepsilon, {\;}{\phi}$) become opener variants (${\ae}, {\;}:{\ae}$] before / r / or supradentals. The results of the analysis show that difficulties of the pronunciation of the target language (Swedish) are mostly due to the interference from the Learner's source language (Korean). However, the Learner sometimes tends to get interference also from the other foreign language with which he or she is already familiar when he or she finds in that language more similarity to the target language than in his or her own mother tongue. Hence this foreign language (American English) in this case functions as a second language for Koreans in Learning Swedish.

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A Study on De Navigation Tools for Electronic Documents Based on Cognitive Process (인지과정을 고려한 전자문헌의 내비게이션 도구에 관한 고찰)

  • Lee, Byeong-Ki
    • Journal of Information Management
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    • v.30 no.1
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    • pp.48-67
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    • 1999
  • In an advanced computer and information network technologies, users are rapidly approaching environment in which information will be created, delivered, managed and stored, using vastly different methods to traditional pap r based systems. Information seeking behavior contains not only physical access, but also cognitive process in which reading, viewing, analyzing, reasoning etc. The most Important factor determining the usability of electronic documents is cognitive process. But, currently Navigation tools for using electronic documents depend on physical searching without considering cognitive process. Therefore, this study examined feasibility of using overal cognitive process in developing navigation tools. Six cognitive process style have been analyzed to find common skill of information seeking process. Also this study suggests skills that needs to introduce to functions of navigation tool, such as searching, filtering, visualization, traversal, content structure.

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