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RISS 인기검색어
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- 저자 : 이유라 ( You Ra Lee ) (검색결과 4 건)
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이유라(You-Ra Lee),신정호(Jong-Ho Shin),민성호(Seong-Ho Min),김태희(Tae-Hui Kim),김민혁(Min-Hyuck Kim),장형민(Hyung-Min Chang),박기창(Ki-Chang Park),안정숙(Joung-Sook Ah),전영안(Yong-An Jeon),장지숙(Jee-Sook Jang) 한국중독정신의학회 2005 중독정신의학 Vol.9 No.1
Objectives:This study was designed to find out the changes of alcohol use behavior and it’s attributing factors through two surveys conducted in 1998 and 2004 in a rural community. Methods:We selected 116 problem drinkers and 116 matched non-problem drinkers among 480 men of the first survey. We surveyed basic epidemiologic data and alcohol use behavior with several questionnaires. Results:The results were as follows : 1) Drinking amount and frequency decreased with increasing age. 2) More than half among previous problem drinkers did not show any significant change in their alcohol use behavior. 3) Most of previous non-problem drinkers maintained their past alcohol use behavior. 4) Continuous problem drinkers had larger amount of past alcohol drinking than no more problem drinkers. They had lower scores on awareness of negative consequence, higher scores on drinking for coping strategy of Alcohol Effects Questionnaire (AEQ) and higher scores on drinking urge to relieve hangover of the Severity of Alcohol Dependence Questionnaire (SADQ) than no more problem drinkers. 5) Continuous problem drinkers showed more smoking and earlier drinking than continuous non-problem drinkers. 6) Continuous problem drinkers became poorer than no more problem drinkers. Conclusions: Continuous problem drinking pattern was associated with larger amount of past alcohol drinking, higher drinking frequency, higher drinking urge to relieve hangover, higher use of drinking for coping strategy and less awareness of negative consequence.
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항암 바이러스 치료제의 보고유전자로써 반딧불이 루시퍼레이즈의 인체 내 안전성에 대한 연구
홍영미(Young Mi Hong),윤웅희(Woong Hee Yoon),이유라(You Ra Lee),김수지(Soo Ji Kim),다니엘 엔가비레(Daniel Ngabire),바드리낫 나라야나사미(Badrinath Narayanasamy),메포세 사하 시헬레 오넬라(Mefotse Saha Cyrelle Ornella),김명희(Myunghee Kim),조은아(E 한국생명과학회 2021 생명과학회지 Vol.31 No.11
반딧불이 루시퍼레이즈(FLuc)는 유전자나 바이러스 치료제에 있어서 효과적인 표적으로 이용될 수 있다. 하지만, 외래 물질이라는 것과 acyl-CoA와의 유사성으로 인하여 FLuc의 임상적 적용은 아직까지 이뤄지지 않았다. 본 연구에서, 우리는 FLuc의 안전성을 보여주기 위한 목적으로 일련의 전임상 실험과 인체실험을 수행했다. 우선, FLuc의 세포막 투과성을 점검하기 위해 FLuc 유전자를 담지한 OTS-412와 FLuc 재조합 단백질을 이용했다. OTS-412를 다양한 세포에 감염시켰을 때, FLuc의 활성은 세포 용해물에서만 관찰됐고, 세포를 배양한 배지에서는 관찰되지 않았다. 재조합 단백질 역시 세포막을 투과하지 못했다. 동물실험에서도 이와 유사한 결과가 관찰됐다. VX-2 종양세포에 처리된 토끼에 OTS-412를 처리했을 때, FLuc의 활성은 오직 종양조직에서만 발견됐고, 다른 장기나 혈액에서는 관찰되지 않았다. FLuc의 인체 반응성을 조사하기 위해 각기 다른 장기에서 유래된 세포 용해물을 FLuc에 반응시켰으나 아무런 활성이 관찰되지 않았다. 마지막으로, FLuc 재조합 단백질을 인체에 정맥주사 방식으로 투여했다. FLuc는 혈액에서 20에서 30분의 반감기를 가지고 분해됐으며, 주사한지 1시간 30분 후에는 검출되지 않았다. 또한, 혈장 샘플이 지방산과 반응을 보이지 않았다. FLuc의 접종 전과 후의 결과를 비교했을 때에도 임상적으로 유의미한 변화가 없었다. 따라서, 본 연구는 FLuc의 안전성에 대한 우려를 종합적으로 불식시킨다. Firefly luciferase (FLuc) can function as an efficient marker in the gene and viral therapies. Nonetheless, its clinical translation has been unaccomplished with the concerns on its exogenous nature and the similarity with human fatty acyl-CoA synthetase. In this study, we aimed to show safety of FLuc by conducting a set of preclinical experiments and a human use. Initially, FLuc permeability across the plasma membrane was investigated by delivering the FLuc-carrying viral vector, OTS-412, or the FLuc recombinant protein. After in vitro infection of OTS-412 into different cancer cell lines, FLuc activity was detected only in the cell lysates, but not in culture media. In addition, recombinant FLuc protein further showed the impermeability against the plasma membrane. Similar result was also observed in the in vivo experiment. After being injected into the VX2 tumor-bearing rabbit, the FLuc exclusively resided within the tumor tissue without being detected in the blood plasma or other organs. Human cancer cell lines originated from various organs were lysed and treated to the FLuc, and none of the human substrates was reactive against the FLuc. As a final step, FLuc recombinant protein was intravenously injected into a human. The luciferase was degraded with the half-life of 20 to 30 minutes in blood, and was untraceable from 1.5 hr after the injection. In addition, the blood plasma was nonresponsive against the fatty acids. Hematological analysis was also comparable between the pre-and post-injection. Altogether, our study collectively demonstrates the safety of the firefly luciferase.
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일 지역사회 코호트에서 정상 노인군과 경도인지장애군의 알츠하이머 치매로 진행하는 위험율 비교
김태영(Tae Young Kim),고대관(Dae Kwan Ko),손지훈(Jee Hoon Sohn),김진영(Jin Yeong Kim),이동현(Dong Hyun Lee),전홍진(Hong Jin Jeon),장성만(Sung Man Chang),이유라(You Ra Lee),최지환(Ji Hwan Choi),윤형근(Hyung Kun Yoon),조맹제(Maeng Je C 대한사회정신의학회 2008 사회정신의학 Vol.13 No.1
국내 지역사회 거주 노인을 대상으로 한 이번 연구에서 경도인지장애가 있는 경우는 그렇지 않은 경우에 비해 18개월 후 알츠하이머 치매로 진행할 확률이 통계적으로 유의하게 높았다. 따라서 지역사회에서 경도인지장애가 있는 노인을 선별하고, 그들을 대상으로 알츠하이머 치매로의 진행을 늦출 수 있는 적절한 개입을 하는 것이 중요하다. Objectives:The aim of this study is to compare the conversion rates to Alzheimer dementia between the normal elderly group and the mild cognitive impairment group at the community cohort. Methods:Among the 229 nondemented elderly who had undergone the first wave in 2006, 70 subjects completed the second wave 18 months later. We used the Korean version of Mini Mental Status Exam(MMSE-K), the Korean version of the CERAD(Consortium to Establish a Registry for Alzheimer’s Disease) neuropsychological batteries, the Korean version of Geriatric Depression Scale, and the Instrumental Activities of Daily Living scale. Psychiatrists diagnosed mild cognitive impairment and Alzheimer dementia by Petersen criteria and Diagnostic and Statistical Manual of Mental Disorders fourth edition(DSM-IV) criteria. We used the multivariate logistic regression to calculate the odds ratio for the conversion to Alzheimer dementia between two groups. Results:While only one subject converted to Alzheimer dementia among 43 normal elderly(2.3%), there were 5 Alzheimer dementia conversions out of 21 mild cognitive impairment cases(23.8%). The odds ratio between two groups is about 30. No other clinical variables predicted progression toward Alzheimer dementia. Conclusion:The elderly with mild cognitive impairment has higher risk of conversion to Alzheimer dementia than the normal elderly in the community cohort.
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