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당뇨병을 가진 노인에서의 혈압과 인지기능 사이의 관련성
김봉조(Bong-Jo Kim),이소영(So-Young Lee),이소진(So-Jin Lee),차보석(Boseok Cha),이철순(Cheol-Soon Lee),박철수(Chul-Soo Park),제남주(Nam-Joo Je),서지영(Ji-Yeong Seo),이동윤(Dongyun Lee) 대한생물치료정신의학회 2015 생물치료정신의학 Vol.21 No.2
Objectives:The aim of this study was to investigate the relationship between blood pressure(BP) and cognitive function in the elderly with diabetes mellitus(DM). Methods:A total of 68 patients with DM aged 65≥ years were included in this cross-sectional study. Relationships between BP and cognitive function tests were determined using Spearman’s rank correlations and multiple regression models. Results:Higher diastolic BP(DBP) was associated with lower score on Mini-Mental State Examination(MMSE)(p=0.009), less verbal fluency test(p=0.007) and poorer digit span test(DST)(p=0.014). The relationship of verbal fluency test(VFT) and DBP was not attenuated after adjusting for covariates: age, gender, body mass index, depressive symptoms, education, duration of DM and quality of sleep in multivariable model. However, DBP could be predictor of MMSE and DST only after controlling for body mass index. Conclusion:The result of this study indicates that elevated DBP in elderly with DM were associated with poorer cognitive performance, particularly semantic memory. Also this study demonstrated that verbal fluency was related to DBP after multivariate adjustment. This study underlines the importance of cognitive evaluation in elderly DM patients, and suggests that a high DBP may have deleterious effects on cognitive functions.
김봉조(Bong-jo Kim),전문수(Mun-soo Chun),박병완(Pyong-wan Park) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_1
Engine lubrication system is generally affected by vehicle driving conditions; acceleration, braking deceleration, and cornering. The oil supply system such as oil pan, baffle plate, and oil pick-up pipe should be optimized to cope with severe driving conditions. The main purpose of this paper is to understand the effect of the engine tilling angle on the oil supply system using engine tilling test rig. For this end, the oil pressure fluctuation in the main gallery and oil aeration in the oil pan are measured at various engine tilting angles. In addition, the oil flow using transparent oil pan is visualized to investigate the cause of the formation of oil aeration. The test results show there is a strong correlation between the main gallery oil pressure fluctuation and oil aeration. It is also found !hal the visualization technique is helpful to understand the formation process of oil aeration