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Growth and Differentiation of Mammary Epithelial Cells in Extracellular Maxtrix Culture
백기주,윤정현,김동염,전성실,양한석,김남득,Paik, Kee-Joo,Yoon, Jeong-Hyun,Kim, Dong-Yeom,Jeon, Seong-Shil,Yang, Han-Suk,Kim, Nam Deuk Korean Society of Life Science 1995 생명과학회지 Vol.5 No.1
Mammary orgamoids(ductal and endbud fragments) were cultured in a complete hormone medium(CHM) with 10%FBS, estradiol, progesterone, hydrocortisone, insulin, and prolactin, Several types of colonies were observed: stellate(14$$\pm$5.5%), duct(41$\pm$5.6%), web(35$\pm$3.6%), squamous(6$\pm$2.1%), and lobuloduct(4$\pm$1.2%), Squamous colony was typical squamous metaplasia(SM) with several layers of squamous epithlia and keratin pearls. At the immunocytochemical study, casein proteins were predominantly localized near the apical surfaces of the cells or in the lumina of ductal or lobuloductal colonies. To inhibit the formation of SM, we treated organoids with all-trans retinoic acid(RA) from 10$^{-6}$ to 10$^{-17}$ M in CHM. Formation of SN was completely inhibited at 10$^{-9}$M RA in CHM. The frequency of lobuloductal colony formation was increased with the augmentation of RA concentration.
윤은주(Eun Joo Yoon),오정익(Jeong Ik Oh),윤정현(Jeon Hyun Yoon) 大韓環境工學會 2014 대한환경공학회지 Vol.36 No.10
본 연구는 발효-소멸 기술을 통해 생산한 음식물 퇴비의 독성여부를 분석하고자 하는 것으로 무와 얼갈이 배추 종자를 대상으로 발아지수 분석을 통해 퇴비 독성을 분석하였다. 실험결과, 음식물 퇴비의 발아지수는 무, 배추 종자 모두 최소 104, 최대 170으로서 비료 공정규격에서 정한 기준이 70을 크게 상회하는 것으로 나타나 발효-소멸기술에 의한 음식물 퇴비가 퇴비로 사용하기에 적절한 수준으로 부숙이 이루어진 것으로 분석되었다. By analyzing seed germination indexes of cabbage and radish, this study aims to evaluate the toxicity of food waste compost, which is produced by fermentation-extinction technology with bio wood chips. In the experimental results, the seed germination index of food waste compost for cabbage and radish was shown in the range of a minimum 104 and maximum 170. It was satisfied with the over 70 criteria in the level of the Korea fertilizer process specification. Consequently, the food waste compost from fermentation-extinction reaction with bio wood chips was evaluated by the appropriate compost maturity for the plantation.
국내 노인 파킨슨병 환자에서의 잠재적으로 부적절한 약물사용 현황에 대한 연구
서미경 ( Mi Kyung Seo ),배민경 ( Min Kyung Bae ),이인향 ( Iyn Hyang Lee ),전성실 ( Seongsill Jeon ),윤정현 ( Jeong Hyun Yoon ) 영남대학교 약품개발연구소 2016 영남대학교 약품개발연구소 연구업적집 Vol.26 No.-
Objectives: The presenl study assessed the prevalence of the potentially inappropriate medication (PIM) use in Korean elderly patients with Parkinson``s disease. In addition, this study examined risk factors that affect PIM use. Method: A retrospective, observational study was conducted using Korean National Health Insurance claims database of 2009. PIM use in Parkinson``s disease patients aged 65 years or older was examined based on 2012 Beers Criteria. Multivariable logistic regression was conducted to identify risk factors for PIM use. Results: Among 5,277 elderly patients with Parkinson``s disease, 88.9% of patients used PIM(s) at least once. The average number of PIM items used per patient was 4.2. PIM use ratio, the proporfion of total amount of PIMs to all medications per patient, was 12.6%. Frequently used PIM therapeutic classes were benzodiazepines (32,7%), first-generation antihistamines (19.2%), and prokinetics (17.5%). Individual PIMs most commonly used included chlorpheniramine (11,4%), levosulpiride (10.9%), diazepam (9.0%), and alprazolam (7.6%). Women (odds ratio [OR] 1.14, 95% confidence interval [CI] 1.11-1.16), medical aid (OR 1.18, 95% CI 1.15-1.21), and long-term facilities (OR 2,43, 95% CI 2.22-2.65) were shown to be risk factors associated with PIM use. Of particular, wide variation in PIM use was associated with the types of healthcare facility. Conclusion: The PIM prevalence was very high in elderly Parkinson``s disease patients. Nationally effective and systematic efforts to identify and prevent PIM use should be made to ensure patient safety and to improve quality of care in the elderly.