• Title/Summary/Keyword: Research of dental hygiene

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Ginsenoside Rd inhibits the expressions of iNOS and COX-2 by suppressing NF-κB in LPS-stimulated RAW264.7 cells and mouse liver

  • Kim, Dae Hyun;Chung, Jae Heun;Yoon, Ji Sung;Ha, Young Mi;Bae, Sungjin;Lee, Eun Kyeong;Jung, Kyung Jin;Kim, Min Sun;Kim, You Jung;Kim, Mi Kyung;Chung, Hae Young
    • Journal of Ginseng Research
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    • v.37 no.1
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    • pp.54-63
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    • 2013
  • Ginsenoside Rd is a primary constituent of the ginseng rhizome and has been shown to participate in the regulation of diabetes and in tumor formation. Reports also show that ginsenoside Rd exerts anti-oxidative effects by activating anti-oxidant enzymes. Treatment with ginsenoside Rd decreased nitric oxide and prostaglandin $E_2$ ($PGE_2$) in lipopolysaccharides (LPS)-challenged RAW264.7 cells and in ICR mouse livers (5 mg/kg LPS; LPS + ginsenoside Rd [2, 10, and 50 mg/kg]). Furthermore, these decreases were associated with the down-regulations of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 and of nuclear factor (NF)-${\kappa}B$ activity in vitro and in vivo. Our results indicate that ginsenoside Rd treatment decreases; 1) nitric oxide production (40% inhibition); 2) $PGE_2$ synthesis (69% to 93% inhibition); 3) NF-${\kappa}B$ activity; and 4) the NF-${\kappa}B$-regulated expressions of iNOS and COX-2. Taken together, our results suggest that the anti-inflammatory effects of ginsenoside Rd are due to the down-regulation of NF-${\kappa}B$ and the consequent expressional suppressions of iNOS and COX-2.

Convergencial Neighborhood Environment Factors related to Walking Days - Centered on Age 20s to 30s Female in Metro Busan (걷기 일 수 관련 융복합적 근린환경 요인 - 부산광역시 20~30대 여성을 중심으로)

  • Kim, Myung-Gwan;Lee, Eun-Ju
    • Journal of the Korea Convergence Society
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    • v.8 no.8
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    • pp.299-305
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    • 2017
  • This study, using the data of the community health survey, chose 2,162 as research objects. To examine convergent neighborhood environmental factors related with walking days of women in their 20s and 30s in Busan city, this study conducted multiple regression analysis. The analysis found out that, the larger the picnic area is, the larger the number of sports facilities is, the larger the number of walking days of those women gets. It was also found out that students walk more often than those who do not work. The older women are, and the larger commercial areas are, the smaller the number of their walking days. Accordingly, it is necessary to design programs suitable to residents in different areas by collecting opinions of residents and testing priorities, necessity, and effectiveness.

Convergence research on the possibility of development of oral care products using the anti-plaque activity of natural essential oils against Streptococcus mutans (천연에센셜오일의 Streptococcus mutans에 의한 치석형성 억제 활성을 이용한 구강관리제품 개발 가능성에 대한 융합연구)

  • Kim, Minhyung;Lee, So-Young;Min, Hee-Hong
    • Journal of the Korea Convergence Society
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    • v.9 no.7
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    • pp.149-154
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    • 2018
  • This article intended to examine the anti-plaque activity of 4 essential oils of Lavender, Tea tree, Eucalyptus, Lemongrass against Streptococcus mutans. In the results of measuring the anti-plaque effect against Streptococcus mutans, Minimum anti-adhesive concentration of Lavender oil was 1.0% and that of Tea tree, Eucalyptus, lemongrass essential oils was 0.5 %. Also, it was confirmed that the essential oils have the effect of inhibiting acid generation by Streptococcus mutans. It was confirmed that pH of the concentration was lowered by the acid generation under the MAC by measuring pH of the solution after incubating Streptococcus mutans and the essential oils in the thermostatic bath varying their concentration. From these results, the essential oils, particularly, Tea tree, Eucalyptus, Lemongrass essential oils are the natural material inhibiting the plaque generation and the potential that they can be used to develop the oral care products was confirmed.

A STUDY ON THE EFFECTS OF SCATTERING DOSE ON EYES AND THYROID FOR PANORAMAGRAPHY (Focus on TLD and PLD)

  • Jung, Yeun;Dong, Kyung-Rae;Kweon, Dae-Cheol;Dieter, Kevin;Goo, Eun-Hoe;Ahn, Se-Youn;Chung, Jae-Eun
    • Journal of Radiation Protection and Research
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    • v.35 no.1
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    • pp.1-5
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    • 2010
  • This study concerning the surface dose of eye and thyroid from panoramagraphy used thermoluminescent dosimeter (TLD) and photoluminescent dosimeter (PLD) to take measurements at ten hospitals in the Gwangju metropolitan area. The recommendations from ICRP 60 and ICRP 73 on the allowance standard for eye are 15 mSv and for thyroid is 1 mSv. The left eye TLD and PLD values are 0.19 mSv and 0.24 mSv respectively. The right eye TLD and PLD values are 0.23 mSv and 0.25 mSv respectively. Thyroid TLD and PLD values are 0.08 mSv and 0.25 mSv respectively and did not exceed the allowance standards(p<0.001). Also comparisons are made between TLD and PLD for each organ and PLD has higher dose measurements than TLD. There are statistically significant differences in left eye measurements and thyroid measurements (p<0.01). There is no significant difference in measurements for the right eye (p>0.05). The TLD and PLD measured dose from panoramagraphy instruments on eyes and thyroid from each hospital did not exceed the recommended dose from ICRP 60 for surface dose measurements. However, due to the probability of influence, consideration should be made for all levels of dose.

Convergence Study of Servicescape and Human Services on the Perceived values and Customer Satisfaction (의료기관의 서비스스케이프, 인적서비스가 지각된 가치와 고객만족에 미치는 융합적 연구)

  • Noh, Eun-Mi
    • Journal of the Korea Convergence Society
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    • v.9 no.1
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    • pp.325-330
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    • 2018
  • The study examined the impact of medical servicescape, human services, and effects on perceived value and customer satisfaction. From July 1, 2016 to August 31, 2016, a total of 300 outpatients visiting the university hospital and general hospital in Ulsan area participated the study. As a result, the general features of the Servicescape were more important to the aged and the higher the academic background, the higher the scores of Human Service and perceived value were revealed. There was a positive correlation between the service schedule of the medical institution, human service, perceived value, and customer satisfaction. And the factors affecting customer satisfaction were in order of human service (${\beta}=0.382$), perceived value (${\beta}=0.376$). The service scapegoats and personal services offered by customers visiting healthcare providers play an important role in understanding the internal health and needs of customers, and this research results will serve as a basic material for strengthening the competitiveness of medical institutions.

Convergent relationship between functional oral health literacy, oral health knowledge and oral health behavior of some university students (일부 대학생의 기능적 구강건강문해력과 구강보건지식 및 구강보건행태에 관한 융합적 관계)

  • Jang, Seon-Ju
    • Journal of the Korea Convergence Society
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    • v.7 no.2
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    • pp.69-75
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    • 2016
  • The research had an investigation of relevance between functional oral health literacy, oral health knowledge, and oral health behaviors of college students. Survey of 410 students in K city college done from June 22 to 26, 2015 was analyzed, and the final analysis subject was 398 students. The result were 281(70.6) students with experience of oral health education, 117(29.4) students without experience of education, and there were 194(48.7) students who had difficulty several times with the material and explanation while attending the education, and 128(32.2) students who had difficulty a few times. Scores of functional oral health literacy were low for more than half of the college students. The higher the functional oral health literacy score, the higher oral health knowledge was shown, and oral health knowledge turned out to be affecting functional oral health literacy. Therefore, an effective program for delivering oral health knowledge to improve low functional oral health literacy of college students must be developed.

Study of the Health Recognition and Health Behavior Practice of Flight Attendants (승무원의 건강인식과 건강행위실천에 관한 연구)

  • Lee, Jung-Hyun;Kim, Seol-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.12
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    • pp.7204-7213
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    • 2014
  • This study examined the impact on work life on health recognition and health behavior practices. The data was collected from 314 flight attendants from June to July 2014 in A airline. Questionnaires were used to measure the levels of health recognition, health behavior practice, Stress index, external image, and the impact on the work life. The data was analyzed using descriptive statistics, T-test, ANOVA, Pearson's correlation, structural equating model using the SPSS AMOS 18.0 program. The research showed that health care influences the external image and work life, and the health behavior practice influences the stress management. A survey of the various influencing factors of work life will be needed in terms of human resource management to provide quality service to customers, and health care programs for flight attendants in workplace will be needed.

The Relation Between Parenting Attitudes and Child's Oral Health Behavior (부모의 양육태도와 아동의 구강보건 행동의 관련성)

  • Noh, Eun-Mi
    • Journal of Convergence for Information Technology
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    • v.10 no.12
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    • pp.140-145
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    • 2020
  • This study was conducted to check the effect of parenting attitudes on oral health behavior on lower grade elementary school students where oral care habits are formed. The subjects of the study were 366 students in the lower grades of elementary school, and the research tools used self-written questionnaires that were modified and supplemented to suit this purpose. Parenting attitudes of parents and lower-grade oral health behavior of elementary school students showed significant amounts of correlation, especially affectionate, autonomous and reasonable parenting attitudes were highly correlated with oral health behaviors(p<0.01). A multiple regression analysis to identify the factors affecting oral health behavior showed that parental attitudes also had a significant effect on the child variables(p<0.01). Therefore, since parenting attitudes are related to children's oral health behaviors, it is believed that measures should be taken to promote oral health education that can be improved by combining them.

Factors Influencing the Discomfort of Chewing in the Elderly : Use of the 8th national health and nutrition survey (장·노년층의 저작불편감에 영향을 주는 요인 : 제8기 국민건강영양조사 이용)

  • Ho-Jin Jeong
    • Journal of The Korean Society of Integrative Medicine
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    • v.12 no.2
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    • pp.25-32
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    • 2024
  • Purpose: This study utilizes big data from the 8th (2021) National Health and Nutrition Examination Survey to determine first, the relationship between chewing discomfort in the elderly and some systemic diseases and second, whether oral diseases and oral health problems are related to systemic diseases. Since this may have an impact, we aim to provide basic data to facilitate the expansion and emphasize the importance of integrated health management education. Methods: Original data from the 8th (2021) National Health and Nutrition Survey, conducted by the Korea Centers for Disease Control and Prevention, were analyzed using SPSS Version 21.0 (IBM). A complex sample frequency analysis was conducted to confirm the general and health-related characteristics of the study subjects, and a complex sample cross-analysis was conducted to determine chewing discomfort according to both general and health-related characteristics. Complex sample multiple logistic regression analysis was conducted to determine the effect on chewing discomfort. Results: In order to analyze the factors that affect chewing discomfort, the general characteristics that showed significant differences in chewing discomfort were adjusted for age, personal income, education level, basic livelihood security, high blood pressure, subjective health status, and subjective oral health. It was found that the condition had a statistically significant effect on chewing discomfort. Conclusion: The findings of this study demonstrate that high blood pressure, subjective health status, and subjective oral health status affect chewing discomfort; hence, measures such as developing and operating programs to improve national oral health are needed. We hope that our study will be used as basic data for research into chewing discomfort and systemic diseases in the elderly.

Convergence study related in development of new intraoral jaw bone distractor in treating dentofacial deformities (악골 기형 치료를 위한 구내형 골신장기 개발에 관련된 융합 연구)

  • Lee, Jae-Gi
    • Journal of the Korea Convergence Society
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    • v.7 no.6
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    • pp.75-80
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    • 2016
  • Distraction osteogenesis is applied to correct mandible or maxilla deformities. Owing to the distractor being away from the skin, it is not aesthetic. Infection can arise due to manual part. And therefore, it is necessary to make the distractor using a new mechanism. 3D software was used for the intraoral distractor modeling. 3D meshes were used to analyze the stress distribution of the distractor was analyzed using Finite element analysis software. This research developed a intraoral distractor for continuous mandible distraction through convergence study. Base on the results, it provide helpful data for future version of the wireless intraoral distractor in other fields of bio and medical engineering.