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Extracellular RNAs and Extracellular Vesicles: Inception, Current Explorations, and Future Applications

  • Perumal, Ayyappasamy Sudalaiyadum;Chelliah, Ramachandran;Datta, Saptashwa;Krishna, Jayachandran;Samuel, Melvin S.;Ethiraj, Selvarajan;Park, Chae Rin
    • Journal of Food Hygiene and Safety
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    • v.35 no.6
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    • pp.535-543
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    • 2020
  • In addition to the ubiquitous roles of cellular RNA in genetic regulations, gene expression and phenotypic variations in response to environmental cues and chemotactic signals, the regulatory roles of a new type of RNA called extracellular RNAs (exRNAs) are an up-and-coming area of research interest. exRNA is transported outside the cell through membrane blebs known as membrane vesicles or extracellular vesicles (EVs). EV formation is predominant and conserved among all microbial forms, including prokaryotes, eukaryotes, and archaea. This review will focus on the three major topics concerning bacterially derived exRNAs, i.e., 1) the discovery of exRNA and influence of extraneous RNA over bacterial gene regulations, 2) the known secretion mechanism for the release of exRNA, and 3) the possible applications that can be devised with these exRNA secreted by different gram-negative and gram-positive bacteria. Further, this review will also provide an opinion on exRNA- and EV-derived applications such as the species-specific exRNA markers for diagnostics and the possible roles of exRNA in probiotics and the epigenetic regulations of the gut microbiome.

Modern Information Technologies in the Organization of Educational Work in Secondary Institutions of Great Britain

  • Shvydenko, Valentyna;Korovii, Daria;Duchenko, Anna;Semenova, Olena;Koval, Valentyna;Lukatska, Yana
    • International Journal of Computer Science & Network Security
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    • v.22 no.1
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    • pp.358-366
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    • 2022
  • The article considers current information technologies in the organization of educational work in secondary schools in Great Britain. The forms and types of organization of educational work in secondary schools of Great Britain with the help of modern information technologies are covered. The purposes of education with the help of modern information technologies are singled out. Mental, physical, labor, moral, aesthetic and other types of education, merged in a holistic educational process, provide an opportunity to achieve the main goal - the formation of a comprehensive and harmoniously developed personality. All forms of educational work have their pedagogical significance, and each of them is valuable in the process of education. Democratization and partnership development are the leading principles of education in British schools at the present stage; multiculturalism and student independence. This is the ability to promote the role of different types of education, such as: labor, moral, legal, religious, family, environmental, aesthetic, civic, physical, mental education, which is now possible with the help of current information technology. The article considers current information technologies in the organization of educational work in secondary schools in Great Britain. The forms and types of organization of educational work in secondary schools of Great Britain with the help of modern information technologies are covered. The purposes of education with the help of modern information technologies are singled out. Mental, physical, labor, moral, aesthetic and other types of education, merged in a holistic educational process, provide an opportunity to achieve the main goal - the formation of a comprehensive and harmoniously developed personality. All forms of educational work have their pedagogical significance, and each of them is valuable in the process of education. Democratization and partnership development are the leading principles of education in British schools at the present stage; multiculturalism and student independence. This is the ability to promote the role of different types of education, such as: labor, moral, legal, religious, family, environmental, aesthetic, civic, physical, mental education, which is now possible with the help of current information technology.

Anti-diabetic effects of the extract from Atractylodes lancea, Anemarrhena asphodeloides and Cinnamomum Cassia mixture in high fat diet-induced diabetic mice and regulation of the function in C2C12 mouse skeletal muscle cells (창출·지모·육계 복합추출물의 고지방식이 유도 당뇨병 마우스에서의 항당뇨 효능 및 C2C12 골격근세포에서의 조절기전 연구)

  • Park, Ki Ho;Kang, Seok Yong;Kang, Anna;Jung, Hyo Won;Park, Yong-Ki
    • The Korea Journal of Herbology
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    • v.34 no.6
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    • pp.79-89
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    • 2019
  • Objective : This study investigated the anti-diabetic effects of DM1, a herbal mixture with Atractylodis Rhizoma, Anemarrhenae Rhizoma, and Cinnamomi Cortex in high fat diet (HFD)-induced diabetic mice and the mechanism in C2C12 mouse skeletal muscle cells. Methods : The C57B/6 mice were fed high fat for 12 weeks, and then administrated DM1 extract (500 mg/kg, p.o.) for 4 weeks. The changes of body weight, calorie and water intakes, fasting blood glucose levels and the serum levels of glucose, insulin, triglyceride, HDL-cholesterol, AST and ALT were measured in mice. The histological changes of liver and pancreas tissues were also observed by H&E stain. C2C12 myoblasts were differentiated into myotubes and then treated with DM1 extract (0.5, 1, and 2 mg/㎖) for 24 hr. The expression of myosin heavy chain (MHC), PGC1α, Sirt1 and NRF1, and the AMPK phosphorylation were determined in the myotubes by western blot, respectively. Results : The DM1 extract administration significantly decreased the calorie and water intakes, glucose, triglyceride, AST and ALT levels and increased insulin and HDL-cholesterol in HFD-induced diabetic mice. DM1 extract inhibited lipid accumulation in liver tissue and improved glucose tolerance. In C2C12 myotubes, DM1 treatment increased the expression of MHC, PGC1α, Sirt-1, NRF-1 and the AMPK phosphorylation. Conclusion : In our results indicate that DM1 can improve diabetic symptoms by decreasing the obesity, glucose tolerance and fatty liver in HFD-induced diabetic mice, and responsible mechanism is might be related with energy enhancement.

A Study on the Perception, Emotion and Capacity of Cultural-Based Community's Policy Target Groups (문화기반 마을공동체 정책대상자의 인식, 정서, 역량에 대한 연구)

  • Song, Anna;Kim, Saejune
    • Korean Association of Arts Management
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    • no.56
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    • pp.5-38
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    • 2020
  • This study begins with the question of how culture-based communities can form a community culture and become a community of sustainable development. Based on the concept of community, community development factors and stage of development, cultural activities, and policy implementation theory, policy execution analysis models suitable for culture-based community projects were derived. A qualitative case study method was adopted as a research method, and success stories of culture-based village communities were selected as the 'Gamgol Community' in Sadong, Ansan, 'Sangdong Community' in Daebu-dong, Ansan, and 'Grimae Village' in Sinse-dong, Andong. Through in-depth interviews, literature analysis, and direct observation, the research analysis used pattern matching, explanation, chronicle analysis, and case integration analysis methods presented by Yin (2009). As a result of the study, first, the characteristics of the policy implementation strategy were taking place in the process of step-by-step development. The main factors in the community development phase were the improvement of community consciousness through the emotional change of participants and the change of capacity within the community. Second, it was understood that cultural activities played a major role in strengthening community consciousness and community capacity, and could be understood as various creative activities. Based on the ecological approach study on culture-based community, this study derived the policy execution analysis model, analyzed the case of culture-based village community, presented the direction of development of community and presented practical implications.

Use of Digital Educational Resources in the Training of Future Specialists in the EU Countries

  • Plakhotnik, Olga;Zlatnikov, Valentyn;Matviienko, Olena;Bezliudnyi, Oleksandr;Havrylenko, Anna;Yashchuk, Olena;Andrusyk, Pavlo
    • International Journal of Computer Science & Network Security
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    • v.22 no.10
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    • pp.17-24
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    • 2022
  • The article proves that the main goal of informatization of higher education institutions in the EU countries is to improve the quality of education of future specialists by introducing digital educational resources into the education process. The main tasks of informatization of education are defined. Digital educational resources are interpreted as a set of data in digital form that is applicable for use in the learning process; it is an information source containing graphic, text, digital, speech, music, video, photo and other information aimed at implementing the goals and objectives of modern education; educational resources on the Internet, electronic textbooks, educational programs, electronic libraries, etc. The creation of digital educational resources is defined as one of the main directions of informatization of all forms and levels of Education. Types of digital educational resources by educational functions are considered. The factors that determine the effectiveness of using digital educational resources in the educational process are identified. The use of digital educational resources in the training of future specialists in the EU countries is considered in detail. European countries note that digital educational resources in professional use allow you to implement a fundamentally new approach to teaching and education, which is based on broad communication, free exchange of opinions, ideas, information of participants in a joint project, on a completely natural desire to learn new things, expand their horizons; is based on real research methods (scientific or creative laboratories), allowing you to learn the laws of nature, the basics of techniques, technology, social phenomena in their dynamics, in the process of solving vital problems, features of various types of creativity in the process of joint activities of a group of participants; promotes the acquisition by teachers of various related skills that can be very useful in their professional activities, including the skills of using computer equipment and various digital technologies.

Genome-wide association study for frozen-thawed sperm motility in stallions across various horse breeds

  • Nikitkina, Elena V.;Dementieva, Natalia V.;Shcherbakov, Yuri S.;Atroshchenko, Mikhail M.;Kudinov, Andrei A.;Samoylov, Oleg I.;Pozovnikova, Marina V.;Dysin, Artem P.;Krutikova, Anna A.;Musidray, Artem A.;Mitrofanova, Olga V.;Plemyashov, Kirill V.;Griffin, Darren K.;Romanov, Michael N.
    • Animal Bioscience
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    • v.35 no.12
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    • pp.1827-1838
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    • 2022
  • Objective: The semen quality of stallions including sperm motility is an important target of selection as it has a high level of individual variability. However, effects of the molecular architecture of the genome on the mechanisms of sperm formation and their preservation after thawing have been poorly investigated. Here, we conducted a genome-wide association study (GWAS) for the sperm motility of cryopreserved semen in stallions of various breeds. Methods: Semen samples were collected from the stallions of 23 horse breeds. The following semen characteristics were examined: progressive motility (PM), progressive motility after freezing (FPM), and the difference between PM and FPM. The respective DNA samples from these stallions were genotyped using Axiom Equine Genotyping Array. Results: We performed a GWAS search for single nucleotide polymorphism (SNP) markers and potential genes related to motility properties of frozen-thawed semen in the stallions of various breeds. As a result of the GWAS analysis, two SNP markers, rs1141327473 and rs1149048772, were identified that were associated with preservation of the frozen-thawed stallion sperm motility, the relevant putative candidate genes being NME/NM23 family member 8 (NME8), olfactory receptor family 2 subfamily AP member 1 (OR2AP1), and olfactory receptor family 6 subfamily C member 4 (OR6C4). Potential implications of effects of these genes on sperm motility are herein discussed. Conclusion: The GWAS results enabled us to localize novel SNPs and candidate genes for sperm motility in stallions. Implications of the study for horse breeding and genetics are a better understanding of genomic regions and candidate genes underlying stallion sperm quality, and improvement in horse reproduction and breeding techniques. The identified markers and genes for sperm cryotolerance and the respective genomic regions are promising candidates for further studying the biological processes in the formation and function of the stallion reproductive system.

Formation of Resilience in the Context of Volunteer Activities Using Information and Communications Technology

  • Lazarenko, NataLiia;Sabat, Nataliia;Sabat, Nadiia;Sylenko, Nadiia;Rundong, Wang;Duchenko, Anna;Shuppe, Liudmyla
    • International Journal of Computer Science & Network Security
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    • v.22 no.6
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    • pp.374-381
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    • 2022
  • The article identifies and theoretically substantiates the trends of national resilience in the context of establishing the security of the country and its civilizational subjectivity. The strategy of development of the pedagogical university in the conditions of European integration into the European educational and scientific space based on certain characterological features of the personality of the volunteer in the context of allocation of personal resilience is developed. The analysis of both external and internal challenges and threats to the civilization of the country needs to be understood in the context of economic, socio-political, legal, military-political, spiritual-cultural, educational-scientific and network-information resilience. The concepts of "national resilience" and "national security" are quite close - at first glance, even identical. However, a deeper understanding clarifies the differences: national security is a state of protection of the country identity and its very existence, the realization of its national interests. In turn, resilience is a fairly effective strategy and a fundamental guarantee of national security. At the same time, it is extremely important to understand that both national security as a state and national resilience as a strategy are only means of achieving and developing a strong and humanistic civilizational subjectivity of the country. After all, such subjectivity opens for citizens the opportunity for development, dignified self-realization and a proper life. The restructuring of the volunteer's motivational sphere is due to the dominance of such leading motives, which are focused mainly on maintaining and restoring health, which leads to distorted meaningful life goals: isolation, alienation, passivity, inertia, reduced activity, limited communication, etc. The characteristics of relatively stable human behavior include several primary and secondary properties. The primary (relevant) properties include patience, trust, hope, faith, confidence, determination, perseverance, and love; the secondary - punctuality, neatness, obedience, honesty, loyalty, justice, diligence, thrift, accuracy, conscientiousness, obligation, etc. The restructuring of the volunteer's motivational sphere is due to the dominance of such leading motives, which are focused mainly on maintaining and restoring health, which leads to distorted meaningful life goals: isolation, alienation, passivity, inertia, reduced activity, limited communication, etc. The characteristics of relatively stable human behavior include several primary and secondary properties. The primary (relevant) properties include patience, trust, hope, faith, confidence, determination, perseverance, and love; the secondary - punctuality, neatness, obedience, honesty, loyalty, justice, diligence, thrift, accuracy, conscientiousness, obligation, etc. The use of information and communication technologies in volunteering will contribute to the formation of resilience traits in the structure of personality formation. Directly to the personal traits of resilience should be included methodological competencies, which include methodological knowledge, skills and abilities (ability to define ultimate and intermediate goals, plan, conduct and analyze knowledge, establish and implement interdisciplinary links with disciplines of medical-psychological-pedagogical cycles, etc.). All these competencies form the professional resilience of the volunteer.

Green perilla leaf extract ameliorates long-term oxidative stress induced by a high-fat diet in aging mice

  • Edward, Olivet Chiamaka;Thomas, Shalom Sara;Cha, Kyung-Ok;Jung, Hyun-Ah;Han, Anna;Cha, Youn-Soo
    • Nutrition Research and Practice
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    • v.16 no.5
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    • pp.549-564
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    • 2022
  • BACKGROUND/OBJECTIVES: Oxidative stress is caused by an imbalance between harmful free radicals and antioxidants. Long-term oxidative stress can lead to an "exhausted" status of antioxidant defense system triggering development of metabolic syndrome and chronic inflammation. Green perilla (Perilla frutescens) is commonly used in Asian cuisines and traditional medicine in southeast Asia. Green perilla possesses numerous beneficial effects including anti-inflammatory and antioxidant functions. To investigate the potentials of green perilla leaf extract (PE) on oxidative stress, we induced oxidative stress by high-fat diet (HFD) in aging mice. MATERIALS/METHODS: C57BL/6J male mice were fed HFD continuously for 53 weeks. Then, mice were divided into three groups for 12 weeks: a normal diet fed reference group (NDcon), high-fat diet fed group (HDcon), and high-fat diet PE treated group (HDPE, 400 mg/kg of body weight). Biochemical analyses of serum and liver tissues were performed to assess metabolic and inflammatory damage and oxidative status. Hepatic gene expression of oxidative stress and inflammation related enzymes were evaluated by quantitative real-time polymerase chain reaction (qRT-PCR). RESULTS: PE improved hepatopathology. PE also improved the lipid profiles and antioxidant enzymes, including hepatic glutathione peroxidase (GPx) and superoxide dismutase (SOD) and catalase (CAT) in serum and liver. Hepatic gene expressions of antioxidant and anti-inflammatory related enzymes, such as SOD-1, CAT, interleukin 4 (IL-4) and nuclear factor erythroid 2-related factor (Nrf2) were significantly enhanced by PE. PE also reduced the levels of hydrogen peroxide (H2O2) and malondialdehyde (MDA) in the serum and liver; moreover, PE suppressed hepatic gene expression involved in pro-inflammatory response; Cyclooxygenase-2 (COX-2), nitric oxide synthase (NOS), interleukin 1 beta (IL-1β), and interleukin 6 (IL-6). CONCLUSIONS: This research opens opportunities for further investigations of PE as a functional food and possible anti-aging agent due to its attenuative effects against oxidative stress, resulting from HFD and aging in the future.

A Field Efficacy Trial of Inactivated Hantaan Virus Vaccine ($Hantavax^{TM}$) Against Hemorrhagic Fever with Renal Syndrome (HFRS) in the Endemic Areas of Yugoslavia from 1996 to 1998 ($1996{\sim}1998$년 유고슬라비아에서 실시한 한탄바이러스 불활화 백신($Hantavax^{TM}$)의 면역효과에 대한 야외시험)

  • Chu, Yong-Kyu;Gligic, Anna;Tomanovic, Snezana;Bozovjc, Boyana;Obradovic, Mirceta;Woo, Young-Dae;An, Chang-Nam;Kim, Hun;Jiang, Yang-Seok;Park, Seung-Chul;Kim, Min-Ja;Lee, Eun-Il;Lee, Ho-Wang
    • The Journal of Korean Society of Virology
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    • v.29 no.2
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    • pp.55-64
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    • 1999
  • In Yugoslavia, hemorrhagic fever with renal syndrome (HFRS) is one of the important national health problem, but no vaccine has been used to prevent HFRS. Since first HFRS case in 1952, sporadic cases of HFRS occurred every year and over 4,000 registered cases with $1{\sim}16%$ mortality so far. We performed a prospective, randomized double-blind placebo-controlled trial to evaluate the effectiveness of $Hantavax^{TM}$ against HFRS in 3,900 healthy adults living in the endemic areas of Yugoslavia. 1,900 people were given 0.5 ml of Hantavax subcutaneously twice at one month interval and a booster shot at one year after. For controls other 2,000 healthy people were given 0.5 ml of physiolosical saline as a placebo. We investigated HFRS cases in both the vaccinated and nonvaccinated groups by monitoring the program for patient registration in the areas from 1996 to 1998, and the effect of vaccine was analyzed epidemiologically. No confirmed case of HFRS was observed among 1,900 Hantavax vaccinees, while 20 confirmed cases were observed among 2,000 nonvaccinated control group. There were no remarkable side effects among the vaccinees either locally or in general after inoculation of the vaccine. The Hantavax vaccine showed statistically significant protective efficacy against HFRS among Yugoslavian people.

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The Relationship between Perceived Discrimination and Depression in Korean Canadian College Students: Moderating Effects of Coping Strategies, Cultural Identity and Bicultural Self-Efficacy (재캐나다 한국인 대학생의 지각된 차별감과 우울의 관계: 대처양식 및 문화 정체성과 이중문화 자기효능감의 조절효과)

  • Anna(OAN NA) Lee ;Sung Moon Lim
    • Korean Journal of Culture and Social Issue
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    • v.21 no.3
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    • pp.511-534
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    • 2015
  • The primary goal of the present study was to examine the moderating effects of coping strategies, cultural identity, and bicultural self-efficacy on the relationship between perceived discrimination and depressive symptoms of Korean Canadian college students. Data were collected from 214 Korean Canadian college students studying in Canada through an online and offline survey. A direct effect of perceived discrimination on depressive symptoms and the moderating effects of coping strategies on the relationship between perceived discrimination and depressive symptoms were examined by using hierarchical regression analysis. And three-way interaction of perceived discrimination, coping strategies, and cultural identity, and perceived discrimination, coping strategies, and bicultural self-efficacy on depressive symptoms were examined. Results from a hierarchical regression indicated that perceived discrimination significantly predicted depressive symptoms and this finding is in line with previous studies. Second, reflective, suppressive, and reactive coping strategies did not moderate the relationship between perceived discrimination and depressive symptoms. Third, the three-way interaction effect of perceived discrimination, suppressive coping strategy, and heritage identity predicted the depressive symptoms. Low heritage identity, high level of perceived discrimination and the frequent use of suppressive coping strategy increased the level of depressive symptoms. Fourth, the three-way interaction effect of perceived discrimination, coping strategies, and bicultural self-efficacy did not predict the depressive symptoms. Limitations and applied implications of the results are discussed.

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