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Lactobacillus gasseri 505를 사용한 꾸지뽕잎 추출물 첨가 신바이오틱스 발효유의 면역활성 조절 연구
이지영,김수경,신용국,오남수,Lee, Ji Young,Kim, Su Gyeong,Shin, Yong Kook,Oh, Nam Su 한국유가공학회 2018 Journal of Dairy Science and Biotechnology (JMSB) Vol.36 No.1
This study examined the immunomodulatory effects of milk fermented with based on the synbiotic interaction between Cudrania tricuspidata leaf extract (CT) and Lactobacillus gasseri 505. Raw 264.7 macrophages were treated with milk (Control), milk supplemented with 0.2% CT (CT-milk), or CT-milk fermented with L. gasseri 505 (FCT). FCT-treated cells showed higher NO production than the other groups. ELISA revealed that FCT produced the highest enhancement of the production of pro-inflammatory cytokines such as $TNF-{\alpha}$, $IFN-{\gamma}$, $IL-1{\beta}$, IL-6, IL-2, IL-12, and IL-10. Furthermore, FCT also increased the gene expression of pro-inflammatory mediators such as iNOS and COX-2 in a concentration-dependent manner. Collectively, these results indicate that the synbiotic interaction between CT and L. gasseri 505 might enhance their immunomodulatory effects of fermented milk.
이지영,계승범,김원경,이용무,구영,류인철,정종평,최상묵,한수부,Lee, Ji-Young,Kye, Seung-Bum,Kim, Won-Kyoung,Lee, Yong-Moo,Ku, Young,Ryu, In-Chul,Chung, Chong-Pyoung,Choi, Sang-Mook,Han, Soo-Boo The Korean Academy of Periodontoloy 2001 Journal of Periodontal & Implant Science Vol.31 No.1
스프린트는 치주처지료에서 부가적 처치법으로 널리 사용되고 있으며, 한편, 디지털 공제 활영술은 기존방사선촬영술의 한계점을 극복하기 위해 기발된 새로운 방법이다. 이번 연구에서는 치근활택술 단독시행시와 스피린트 병행 처치시의 효과를 임상적, 방사선학적으로 비교하였다. 중정도의 성인성 치주염을 가진 20명의 환자를 대상으로 하되 10명은 치근활택술 단독으로, 나머지 10명은 스프린트 병행처치로 처치하였다. 임상적, 방사선학적인 평가는 처치전, 처치후 6개월에 행하고, 임상적 평가의 경우 3개월에 추가로 실시하였다. 이번 연구에서 사용된 임상 지수로는 치태지수, 치은지수, 치은퇴축, 치주낭깊이, 임상부착수준, 임상부착증가, 탐침시출혈, 치아동요도 등이며, 방사선학적 평가는 기존 방사선촬영술에 의한 방법과 디지털 공제촬영수렝 의한 방법으로 행하였다. 디지털 공제 촬영술에 의한 평가시, 영상은 Digora 프로그램에 의해 획득하고 Emago 프로그램으로 처리 하여 다음과 같은 결론을 얻었다. 1. 처치후 3개월에 치태지수, 치은지수, 치은퇴축, 치주낭깊이, 임상적부착수준, 탐침시 출혈 등의 임상지수들이 변했으며, 특히 이러한 변화는 치주낭깊이, 치은퇴축, 탐침시출혈에서 유의성이 있었다. ( p<0.05 ) 그러나 두군간 차이는 인정되지 않았다. ( p>0.05 ) 2. 처치후 6개월에도 치태지수, 치은지수, 치은퇴축, 치주낭깊이, 임상적부착수준, 탐침시출혈, 치아동요도 등의 임상지수들이 변했으며, 특히 이러한 변화는 치주낭깊이, 치은퇴축, 탐침시출혈, 치태지수, 치아동요도에서 유의성이 있었다. ( p<0.05 ) 그러나 두 군간 차이는 인정되지 않았다. ( p>0.05 ) 3. 켄달 상관분석시, 임상적 평가와 기존 방사선 촬영술에 의한 평가사이의 관련성을 낮았으며 거의 0에 가까운 수치를 보였으며 (r=0.110, p=0.639 ) 임상적 평가와 디지털 공제 방사선 촬영술에 의한 평가사이에서 약간 높은 관련성을 보였다. ( r=0.257, p=0.315 ) 즉 치주치료후의 골변화는 디지털 공제 방사선 촬영술에 의한 평가시 기존 방사선 사진보다 임상적 부착증가와 더욱 긴밀한 관련성을 보여준다. 이상의 결과로 볼 때, 스프린팅 처치는 치주 치료에 있어 치근활택술에 부가적 표과를 제공하지 못한다.
3주간 고지대 훈련이 크로스컨트리 스키선수들의 유 · 무산소 운동수행력 및 회복능력에 미치는 영향
이지영(Lee, Ji-Young),한태용(Han, Tae-Yong),최용철(Choi, Yong-Chul) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.5
The purpose of this study was to investigate effects of 3 week-high altitude training on aerobic and anaerobic exercise performance and recovery capability in cross-country skier. The subjects in this study were 6 cross-country skier. We investigated the maximal oxygen uptake, anaerobic performance, and recovery capability before-and after 3 week-high altitude training. The period of high altitude training was 3weeks and the training time was 2-3hours/day. As results, VO₂max and VO₂average were significantly increased after 3 week-high altitude training compared with before 3week-high altitude training, and decreased at 2week after 3week-high altitude training. But anaerobic performance such as peak power, mean power, and fatigue index had not significant effects. Finally, recovery capability estimated recovery heart-rate was significantly increased 1week and 2week after 3week-high altitude training compared with before 3week-high altitude training. In conclusions, we suggest that high altitude training is required time of minimum 2~3 hours/day, and effects of high altitude training is decreased to level before high altitude training. Therefore, high altitude training program for promotion of exercise performance should be designed training time and period as well as effective period after high altitude training.
펄프 종류와 기계적 처리조건에 의한 셀룰로오스 나노섬유의 특성 및 탈수성 평가
이지영(Ji Young Lee),박태웅(Tae Ung Park),김은혜(Eun Hea Kim),조해민(Hae Min Jo),김철환(Chul Hwan Kim),김태영(Tae Young Kim),허용대(Yong Dae Heo),이종현(Jong Hyun Lee),김준규(Jun Kyu Kim) 한국펄프·종이공학회 2017 펄프.종이技術 Vol.49 No.3
Many studies have shown that cellulose nanofibrils (CNFs) are powerful in improving paper strength. However, CNFs are usually manufactured as a slurry and their drainage is critical to their internal addition in the papermaking process. Therefore, the production conditions of CNF for internal addition must be established in order for its use to spread in the paper industry. In this study, various CNFs were made in a laboratory according to the functions of pulp type, freeness, and the pass number of grinding. The viscosity, average particle size, zeta-potential, and the fiber width of the CNFs were measured. After the physical properties of the CNFs were measured, the drainage rates of the CNF slurries were determined through the use of a pressure dehydration tester. An increased pass number of grinding simultaneously increased the viscosity of the CNFs and decreased their particle size and fiber widths. However, the relationship between the pass number and the zeta-potential of the CNFs was not observed. As the pass number of grinding increased, the drainage rates of the CNFs decreased linearly. Specifically, the decrease in the drainage of the CNFs made from SwBKP was lower than those made from HwBKP. Therefore, the pulp type and the pass number of the CNFs should be controlled for the purpose of their internal addition in the papermaking process.
대학생의 성별에 따른 건강관련 체력과 건강신념모형 구성요소와의 상관성
이지영(Lee, Ji-Young),최용철(Choi, Yong-Chul),한태용(Han, Tae-Yong),이한(Lee, Han) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.3
The purpose of this study was to investigate correlation between health related fitness and components of health Belief model(HBM) according to gender difference university students. A total of 157 students(male : 85, Female : 72) were invited in this study. We investigated questionnaires and measured obesity indices, blood pressue, resting heart-rate, and health related fitness. A total 22questions (susceptibility to disease: 5questions; severity of disease: 5questions; benefits of exercise: 7questions; barriers to exercise: 5questions) appeared to be suitable as measurement tool. As result, scores of susceptibility to disease and severity of disease were relatively low, especially in men was lower in university students. And health related fitness was related with components of HBM. In particular, muscular strength was found to have the greatest correlation with HBM components. In the analysis according to gender, muscular strength, muscular endurance, cardiorespiratory fitness were related with susceptibility to disease and benefits of exercise in female university students, and body composition and muscular strength were related with susceptibility to disease, benefits of exercise, and barriers to exercise. In conclusion, we suggest that health related fitness is related components of HBM, and improvement of health related fitness influence the change in health behavior by strengthening component of HBM.