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오세리(Se-Ri Oh),권혜준(Hye-Jun Kwon),백승빈(Seung-Been Baek),전아라(A-Ra Jeon),장종식(Jong-Sik Jang),이현지(Hyeon-Ji Lee) 대한고령친화산업학회 2023 대한고령친화산업학회지 Vol.15 No.2
Objective : The following study uses data from the “2020 Analysis of Living Conditions of the Elderly” and aims to recognize difference in mood and cognition based on how elderly people participate in society. Methods : Based on the data from “2020 Analysis of Living Conditions of the Elderly”, provided by the Korean Institute for Health and Social Affairs, a secondary data analysis was performed on 10069 elderly citizens over the age of 65. In order to spot influences on depression, a Geriatric Depression Scale-K test had been conducted, and a Korean version of Mini-Mental State Examination was used to analyze what could potentially alter cognition. Results : According to the analysis on how social interactions affected the mood and cognition of elderly people, the results showed that those who didn’t participate in social groups had the highest levels of depression and cognition decline. Additionally, lower levels of depression and increased mental capacity was proportional to the amount of social participation. Conclusion : Social participation plays a big role in older people’s mood and cognition, thus it is essential to facilitate those needs. 연구목적 본 연구에서는 2020 노인실태조사 데이터를 이용하여 노인의 사회참여 유형에 따른 우울과 인지의 차이를 보고자 한다. 연구방법 한국 보건사회연구원에서 제시한 2020년도 노인 실태조사 데이터를 활용하여 10069명의 65세 이상 노인들을 대상으로 이차자료 분석(secondary data analysis)를 시행하였다. 우울에 미치는 영향을 알아보기 위해 노인 우울 간이 척도(Geriatric Depression Scale-K; GDS-K)를 시행하였고 인지에 미치는 영향을 알아보기 위해 (Korean version of Mini-Mental State Examination; MMSE-K)를 이용하여 분석하였다. 연구결과 노인의 사회참여 유형별로 우울과 인지기능의 현황을 확인한 결과 정신사회단체에 참가하지 않았을 때 우울이 가장 높고 인지기능이 가장 낮았다. 사회참여 항목별 사회참여 여부에 따른 우울 및 인지기능 차이에서 학습활동과 정치사회단체를 제외한 친목 단체, 동호회, 여행이 유의한 차이를 나타냈다. 결론 노인에게 사회참여의 유형에 따라 우울과 인지기능에 영향을 미치므로 그에 따른 중재가 필요하다.
오세조,김유리,양서영,이혜영,양동은 한국유전학회 1997 Genes & Genomics Vol.19 No.4
Partial sequence of the mitochondrial cytochrome b gene was analyzed to investigate the intra- and interspecific differentiation between 2 species of the genus Rana (R. nigromaculata and R. plancyi). The sequence of the 315-base pairs, which covers approximately 28% of the cytochrome b gene, was determined by PCR-direct silver sequencing method. The published sequence of Xenopus laevis was utilized for outgroup comparisons. The levels of mtDNA sequence differences were ranged from 0.3-2.9% within species, 3.8-6.4% between Rana species, and 24.1-17.9% between Rana species, and Xenopus laevis. Transition was more frequent than transversion at synonymous sites. Transitions were dominated at the third position of the codon. In the amino acid analyses, 12 amino acid differences were found between Rana and X. laevis. Based on Tamura-Nei distance, percent sequence divergence was estimated 8.5% within Rana and 34.3% between Rana and X. laevis.
So Ri Lee(이소리),Tae Ho Kim(김태호),Se Heang Oh(오세행),Seong Keun Kwon(권성근),Jin Ho Lee(이진호) 한국고분자학회 2018 폴리머 Vol.42 No.5
본 연구에서는 생리활성인자[vascular endothelial growth factor(VEGF) 및 laminin]가 탑재된, 비대칭구조를 가지는 다공성 polycaporlactone(PCL) 기반의 맴브레인을 제조하였으며, 맴브레인에 탑재된 생리활성인자에 의한 근육유래 줄기세포(muscle-derived stem cells, MDSCs)의 평활근세포(smooth muscle cells, SMCs)로의 분화거동을 연구하였다. PCL 기반 맴브레인에 탑재된 VEGF 및 laminin은 맴브레인으로부터 각각 28일과 14일 동안 지속적으로 방출되었다. 각 생리활성인자가 단독 혹은 공동으로 탑재된 PCL 기반 맴브레인에서 MDSCs의 SMCs로의 분화거동을 DNA 정량화, RT-PCR 및 면역염색을 통해 분석하였으며, 두 생리활성인자가 공동으로 탑재된 PCL 기반 맴브레인에서 가장 우수한 평활근으로의 분화거동을 보임을 확인하였다. 이러한 결과로부터, VEGF/laminin이 탑재된, 비대칭구조를 가지는 다공성 PCL 기반의 맴브레인은 평활근 재생을 위한 재생막으로 사용이 가능할 것이라 판단되었다. It is important to control the stem cell differentiation into target cell types for clinical use of the stem cells. In this study, asymmetrically porous polycaprolactone (PCL)/Pluronic F127 membranes immobilized with bioactive molecules [vascular endothelial growth factor (VEGF) and/or laminin] were prepared to investigate the effect of musclederived stem cells (MDSCs) on smooth muscle cell (SMC) differentiation. The VEGF and laminin immobilized on the PCL/F127 membrane surface were released with a sustained manner for 28 and 14 days from the membrane, respectively. The SMC differentiation behavior of MDSCs on the membranes immobilized with single or dual bioactive molecules was compared by DNA quantification, RT-PCR, and immunohistochemical analyses. The dual VEGF/laminin-immobilized membrane group showed higher cell growth and more effective SMC differentiation than the single VEGF- or lamininimmobilized group. From our findings, we suggest that the dual VEGF/laminin-immobilized membrane may be applicable to use as a guided smooth muscle regeneration membrane.