• Biomolecules & Therapeutics
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• 제23권2호
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• pp.189-194
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• 2015

P450 1A2 is responsible for the metabolism of clinically important drugs and the metabolic activation of environmental chemicals. Genetic variations of P450 1A2 can influence its ability to perform these functions, and thus, this study aimed to characterize the functional significance of three P450 1A2 allelic variants containing nonsynonymous single nucleotide polymorphisms (P450 $1A2^*8$, R456H; $^*15$, P42R; $^*16$, R377Q). Variants containing these SNPs were constructed and the recombinant enzymes were expressed and purified in Escherichia coli. Only the P42R variant displayed the typical CO-binding spectrum indicating a P450 holoenzyme with an expression level of ~ 170 nmol per liter culture, but no P450 spectra were observed for the two other variants. Western blot analysis revealed that the level of expression for the P42R variant was lower than that of the wild type, however the expression of variants R456H and R377Q was not detected. Enzyme kinetic analyses indicated that the P42R mutation in P450 1A2 resulted in significant changes in catalytic activities. The P42R variant displayed an increased catalytic turnover numbers ($k_{cat}$) in both of methoxyresorufin O-demethylation and phenacetin O-deethylation. In the case of phenacetin O-deethylation analysis, the overall catalytic efficiency ($k_{cat}/K_m$) increased up to 2.5 fold with a slight increase of its $K_m$ value. This study indicated that the substitution P42R in the N-terminal proline-rich region of P450 contributed to the improvement of catalytic activity albeit the reduction of P450 structural stability or the decrease of substrate affinity. Characterization of these polymorphisms should be carefully examined in terms of the metabolism of many clinical drugs and environmental chemicals.

• 대한임상검사과학회지
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• 제51권3호
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• pp.316-322
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• 2019

위에 군집을 형성하는 그람 음성 박테리아인 Helicobacter pylori는 위암을 일으킬 수 있는 1급 발암 인자로, H. pylori의 성장을 억제하거나 제거하는 물질을 탐색하는 연구가 꾸준히 진행되어 왔다. 오수유는 운향과에 속하는 오수유의 열매를 일컫는 생약으로 한방에서는 설사 및 복통에 사용되던 약재이다. 오수유 추출물이 H. pylori의 성장을 억제한다는 보고는 있었으나 병원성 요인에 어떤 영향을 주는지에 대한 연구는 보고된 바가 없었다. 본 연구에서는 각기 다른 메탄올 농도에서 추출한 오수유 추출물의 H. pylori 성장 억제 효과를 비교하였으며 또한 오수유 추출물이 H. pylori의 병원성 인자에 미치는 영향을 연구하였다. 95% 메탄올 오수유 추출물이 가장 낮은 최소저해농도(MIC) 값을 보였으며, 이 95% 추출물을 대상으로 하여 MIC 미만 농도에서 H. pylori의 병원성 인자의 발현 변화를 확인하였다. 95% 메탄올 오수유 추출물은 H. pylori의 주요 병원성 인자인 cagA, vacA 그리고 ureB의 mRNA 및 단백질의 발현을 억제하였으나 흥미롭게도 ureA의 발현은 증가시켰다. 하지만 H. pylori의 배양액과 세포내의 암모니아의 량이 현저히 낮아졌음을 확인하였고, 이는 오수유 추출물이 ureB의 mRNA 및 단백질의 발현을 억제하여 H. pylori의 urease 활성을 억제한다는 것을 확인하였다. 오수유 추출물의 병원성 인자 조절 기전에 대해서는 좀 더 연구가 필요할 것으로 보이나, 본 연구 결과는 오수유 추출물이 H. pylori로 인한 부정적 영향을 줄여줄 것으로 생각한다.

• Journal of Animal Science and Technology
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• 제63권6호
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• pp.1376-1385
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• 2021

Foot-and-mouth disease, one of the most contagious diseases in cloven-hoofed animals, causes significant economic losses. The pathogenesis of foot-and-mouth disease virus (FMDV) infection is known to differ with age of the animals. In this study, we aimed to reveal the difference in immunological response in the initial stage of FMDV infection between piglets and adult pigs. Peripheral blood mononuclear cells (PBMCs) were isolated from 3 piglets (8 weeks old) and 3 pigs (35 weeks old) that were not vaccinated against FMDV. O-type FMDV (2 × 10² median tissue culture infectious dose) was inoculated into porcine PBMCs and the cells were incubated at 37.0℃ under 5% CO₂ for various time periods (0, 1, 3, 6, 12, 24, and 48 h). The total RNA was obtained from the FMDV-inoculated PBMCs after each time point, and the virus titer was investigated in these RNA samples. Furthermore, dynamics of mRNA expression of the six tested cytokines (interferon [IFN]-α, IFN-γ, interleukin [IL]-6, IL-8, IL-10, and tumor necrosis factor [TNF]-α) in FMDV-inoculated porcine PBMCs were evaluated by time-series analysis to determine the differences, if any, based on the age of the pigs. The PBMCs of piglets contained the highest quantity of FMDV mRNA at 6 hours post-inoculation (hpi), and the PBMCs of pigs had the highest quantity of FMDV mRNA at 3 hpi. The mean cycle threshold-value in the PBMCs steadily decreased after the peak time point in the piglets and pigs (6 and 3 hpi, respectively). The dynamics of mRNA expression of all cytokines except TNF-α showed age-dependent differences in FMDV-inoculated PBMCs. The mRNA expression of most cytokines was more pronounced in the piglets than in the pigs, implying that the immune response against FMDV showed an age-dependent difference in pigs. In conclusion, within 48 hpi, the 8-week-old piglets responded more rapidly and were more sensitive to FMDV infection than the 35-week-old pigs, which could be associated with the difference in the pathogenesis of FMDV infection among the pigs. These results provide valuable insights into the mechanisms underlying the age-dependent differences in immune response in pigs against FMDV infection.

• 대한간호학회지
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• 제20권3호
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• pp.430-458
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• 1990

Care is a central concept of nursing. Nursing would not exist without caring. Care and quality of life are closely related. Human behavior is a manifestation of culture. We can say that caring and nursing care are expression of culture. The nurse must understand the relationship of culture with care for ensure quality nursing care. But knowledge of cultural factors in nursing is not well developed. Time and in - depth study are needed to find meaningful relationships between culture and care. Nurses recognized the importance of culturally appropriate nursing There are two care systems in culturally based nursing. The folk care system and the professional nursing care system. The folk care system existed long before the professional nursing care system was introduced into this culture. If the discrepancy between these two care systems is great, the client may receive inappropriate nursing care. Culture and subcaltures are diverse and dynamic in nature. Nurses need to know the caring behaviors, patterns, and their meaning in their own culture. In Korea we have taken some first step to study cultural nursing phenomena. It is not our intent necessarily to return to the past and develop a nationalistic of nursing, but to identify the core of traditional caring and relate that to professional nursing care. Our Assumptions are as follows : 1) Care is essential for human growth, well being and survial. 2) 7here are diverse and universal forma, expressions, patterns, and processes of human care that exist transcul - turally. 3) The behaviors and functions of caring differ according to the social structure of each culture. 4) Cultures have folk and professional care values, beliefs, and practices. To promote the quality of nursing care we must understand the folk care value, beliefs, and practices. We undertook this study to understand caring in our traditional culture. The Goals of this study were as follows : 1) To identify patterns in caring behavior, 2) To identify the structural components of caring, and 3) To understand the meaning and some principles of caring. We faised several questions in this study. Who is the care-giver? Who is the care-receipient? Was the woman the major care -giver at any time? What are the patterns in caring behavior? What art the priciples underlying the caring process? We used an interdisciplinary team approach, composed of representatives from nursing and anthropology, to contribute in -depth understanding of caring through a socicaltural perspeetive. A Field study was conducted in Ro-Bong, a small agricultural kinship village. The subjects were nine women and one man aged be or more years of age. Data were collected from january 15 to 21, 1990 through opem-ended in-depth interviews and observations. The interview focused on caring behaviors sorrounding birth, aging, death and child rearing. We analysed these data for meaning, pattern and priciples of caring. In this report we describe caring behaviors surrounding childbirth. The care-givers were primarily mothers- in -low, other women in the family older than the mother - to- be, older neighbor woman, husbands, and mothers of the mother-to- be. The care receivers were the mother-to-be the baby, and the immediate family as a component of kinship. Emerging caring behavior included praying, helping proscribing, giving moral advice(Deug - Dam), showing concern, instructing, protecting, making preparations, showing consideration, touching, trusting, encouraging, giving emotional comfort, being with, worrying about, being patient, preventing problems, showing by an example, looking after bringing up, taking care of postnatal health, streng thening the health condition, entering into another's feelings(empathizing), and sharing food, joy and sorrow The emerging caring component were affection, touching, nurtuing, teaching, praying, comforting, encouraging, sharing. empathizing, self - discipline, protecting, preparing, helping and compassion. Emerging principles of. caring were solidarity, heir- archzeal relationships, sex - role distinction. Caring during birth expresses the valve of life and reflects the valued traditional beliefs that human birth is given by god and a unique unifying family event reaching back to include the ancestors and foreward to later generations. In addition, We found positive and rational foundations for traditionl caring behaviors surrounding birth, these should not be stigmatized as inational or superstitious. The nurse appropriately adopts the rational and positive nature of traditional caring behaviors to promote the quality of nursing care.

• KSBB Journal
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• 제19권1호
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• pp.17-26
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• 2004

본 연구에서는 ALA의 생산 공정을 개발하기 위해 재조합 플라스미드, pFLS45를 도입한 재조합 대장균의 성장과 ALA 생산 특성을 조사하였다 30 mM 숙신산과 15 mM 글리신이 첨가된 배양액에서 균체 성장이 원활하고 높은 ALA 생산성을 보였다. 그리고 LA는 균체성장이 거의 다 이루어진 정지기에 첨가될 때 균체 성장에 저해를 일으키지 않으면서 ALA 생산성을 높일 수 있었다. 또한 세포내 효소 ALAD의 활성은 30 mM LA가 첨가되었을 때 가장 효과적으로 저해되었다. 본 연구에서 사용한 재조합 대장균은 pH 조절을 위한 산이나 알칼리 첨가에 민감하여 pH를 조절하지 않은 경우에 균체의 성장이 가장 원활하였고 ALA 생산성도 높았다. 3$0^{\circ}C$에서 배양한 경우 균체의 성장은 원활하였지만 ALA의 생산성이 매우 낮았다. 그리고 일반적인 pET 계열의 재조합 대장균의 발현 양상과 달리 유도 발현하지 않고 LA만을 첨가했을 때 ALA 생산 농도는 800 mg/L 이상으로 매우 높았다. 7L급 생물반응기를 이용하여 MS8 배지에 기질 (포도당, 숙신산, 글리신) 및 LA를 간헐적으로 첨가하여 균체 성장 및 ALA 생산 특성을 살펴보았다. 균체량은 높지 않았지만 기질첨가 이후 ALA 생산량은 꾸준히 증가하여 기존의 ALA 생산량보다 두 배 이상 증가한 1300mg/L 정도 생산되었으며 ALAD의 활성은 다른 실험결과와 비교할 때 30% 정도 낮았다. 한편, LA 및 숙신산의 첨가 이후 낮아진 배양액의 pH는 균체 성장을 저해하였는데 발효 중 기질을 첨가한 후 pH를 잘 제어하면서 유가식 또는 연속식 발효를 수행하면 ALA 생산성을 증대시킬 수 있을 것으로 생각된다. 그러나 고농도의 ALA 생산은 균체 생존에 영향을 주므로(37) 생산된 ALA를 적절히 분리하는 방법이 필요할 것으로 사료된다.

• 패션비즈니스
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• 제14권4호
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• pp.91-101
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• 2010

This paper has the purpose of suggesting a development-method on the fashion products that would secure the competitiveness in the global markets through creating supersensitive practical products on the basis of developing originative fashion-goods being made of jacquard that is fine quality of couture. This paper has collected data through the cases of the developed nations in fashion, precedent studies and all the related literature on the subject. The results of this researching are as following: The first, it is expected that the necessity of developing new fashion products would be appealed toward the prestige group of consumers who are seeking for the fine quality and super-sensitivity in female fashion in Korea, and it is the current situation that the products made of jacquard are gradually expanding not only in the area of apparel, fashion goods and interior but also another areas. The current situation of the global market suggests the necessary strategy of survival, that is, the development of supersensitive materials and creative products which would be able to keep the high quality and lower the selling price through cost reduction. The second, the suggestion of the direction in developing the products of the female fashion made of jacquard has two points - the development of the texture that would realize a unique form and the development of the material that would be able to realize planar pattern and three dimensional pattern which are woven with thin and light materials with various solidity and delicacy through various techniques of mixing and three dimensional expression. The third, the expected ripple effect and utilization generated from the development of fashion products are as followings: As material characteristics of jacquard, It needs the specialization of various techniques and specialized production system in using jacquard, and the specialized technique and system would make it possible to produce not only the higher value-added products through expressing affluent colors and delicate design but also competitive products through cutting the process and cost, eventually, it would lead to the expansion of the jacquard market of super-sensitive prestige. Therefore, it is remarkable that various development of products toward the global market and the prestige female fashion market can suggest the vision that make the national fashion industry develop into the higher value-added knowledge industry integrating technology and culture.

• 복식
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• 제65권3호
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• pp.62-75
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• 2015

The purpose of this study is to examine how fine art is received in fashion, and to contribute to the development of a creative fashion culture. In order to do this examination, this study focuses on the formative ideas of De Stijl which appeared in the early 20th century. In addition, this study presents examples of today's fashion that still reflects the formative ideas of De Stijl. The De stijl movement did not last for a long time, but it has had significant influence on modern art, and has been a source of inspiration to fashion designers since the Mondrian look was presented by Yves Saint Laurent in 1965. The study on the basis of De Stijl such as Neo-Plasticism of Piet Mondrian and Elementalism of Theo van Doesburg, has been conducted in this study. As a result, this study presents formative characteristics of the De Stijl group in fashion as follows: First, contemporary fashion designers have searched for proportion and thickness of lines and the side split using lines, a stylistic trait of an artist in the De Stijl group. Second, color scheme defined by the De Stijl group has been applied with modification to contemporary fashion. Modification and selective choice of the limited colors are for a contemporaneous style. Third, formative ideas of De Stijl, which strives to achieve the vision of Utopia, has turned up in contemporary fashion as a simple and minimal silhouette. Contemporary fashion has enhanced their aesthetic value by deriving not only a superficial expression but also plastic principle and philosophy from De stijl. It can be regarded as the fashion's ideal way to embrace style of art and it might be so described as a key to edifying artistic and creative attributes of fashion.

• 한국콘텐츠학회논문지
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• 제8권12호
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• pp.190-197
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• 2008

기계적 명령어인 정경 (Threading)과, 트레들링(Treadlings)을 토대로 디자인해야 하는 직조 디자인은 표현의 한계성이 강한 것이 특징이다. 때문에 연구되어진 많은 한국 전통문양 자료들 중에서도 특히 떡살에 의해 한계 지어지는 떡살문양의 표현이 서로의 접목을 용이하게 하여 떡살문양을 선택하여 디자인의 컨셉을 잡았다. 특히, 문자문양과 기하학문양은 문양의 일반적 특징인 아름다움의 추구보다는 자연에 대한 인간의 두려움과 경이로움을 토대로 하여 생겨난 종교적 갈망과 기원을 담고 있어 이러한 이미지들을 토대로 트윌(Twill)기법, 특히 그 안에서도 형태적 표현이 용이한 샐리낼슨(Sally Nielsen)의 로즈펫(Rosepath)의 정경을 중심으로 활용하여 한국적 문양을 직조구조로 디자인하였다. 이 연구를 통해 세계의 위버(weaver)들에게 우리의 문양을 소개하는 계기가 되고 우리나라 산업에서는 이러한 직물디자인이 산업체에서 활발하게 활용되어 고부가가치의 자산을 획득하고 우리의 우수한 문화를 상품화 하고 문화산업을 발전시키는데 도움이 되기를 희망한다.

• KSBB Journal
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• 제26권3호
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• pp.199-205
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• 2011

Using tetrameric ${\beta}$-galactosidase as a model protein, anchoring motives were screened in Bacillus subtilis spore display system. Eleven spore coat proteins were selected considering their expression levels and the location in the spore coat layer. After chromosomal single-copy homologous integration in the amyE site of Bacillus subtilis chromosome, cotE and cotG were chosen as possible spore surface anchoring motives with their higher whole cell ${\beta}$-galactosidase activity. PAGE and Wester blot of extracted fraction of outer layer of purified spore, which express CotE-LacZ or CotG-LacZ fusion verified the existence of exact size of fusion protein and its location in outer coat layer of purified spore. ${\beta}$-galactosidase activity of spore with CotE-LacZ or CotG-LacZ fusion reached its highest value around 16~20 h of culture time in terms of whole cell and purified spore. After intensive spore purification with lysozyme treatment and renografin treatment, spore of BJH135, which expresses CotE-LacZ, retained only 1~2% of its whole cell ${\beta}$-galactosidase activity. Whereas spore of BJH136, which has cotG-lacZ cassette in the chromosome, retained 10~15% of its whole cell ${\beta}$-galactosidase activity, proving minor perturbation of CotG-LacZ, when incorporated in the spore coat layer of Bacillus subtilis compared to CotE-LacZ. Usage of Bacillus subtilis WB700, of which 7 proteases are knocked-out and thereby resulting in 99.7% decrease in protease activity of the host, did not prevent the proteolytic degradation of spore surface expressed CotG-LacZ fusion protein.

• 패션비즈니스
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• 제13권5호
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• pp.23-36
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• 2009

The purpose of this research is to design and to produce actual high value added wedding dress comprised of the pear blossoms pattern(梨花紋), which is one of the traditional patterns which was not researched to this day, and of the Dang-$\breve{u}$i(唐衣) image which reflects our concept of beauty as if as a means of conducting empirical study for the application of traditional Korean patterns to the contemporary application. pear blossoms effectively signifie the image of beautiful bride thanks to the pure, graceful and clean image of white flower, both in the external and internal aspects. The Dang-$\breve{u}$i of the Chosun Dynasty, which is another motif is one of the representative clothing that expresses the beauty of the curve when it comes to the Korean culture as traditional wedding dress. Attempt was made to develop design for wedding dress that expresses the Korean style beauty that combined the tradition and the modern. Towards this end, the project was composed of the Korean-like Ewha, image of the Dang-$\breve{u}$i I, II and III to design three dresses. The Dress I presents the image of pure, elegant and beautiful bride, while Dress II represents the pure and city like trendiness of the Korean women today as bride. Dress III was made centered on the image of elegant, and chaste bride. As for the materials used, hand-woven silk and silk organza used for the traditional clothes. As for the ornaments, embroidery, quilted work, beads, corsage, burn-out and other techniques were used for expression.