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- 저자 : 임방은(Bang-Eun Lim) (검색결과 4 건)
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남미영(Mee-Young Nam),박종욱(Jong-Wook Park),임형근(Hyung-Guhn Lim),임방은(Bang-Eun Lim),박종헌(Jong-Heon Park),이신석(Shin-Seok Lee),마성권(Seong-Kwon Ma),김수완(Soo-Wan Kim),김남호(Nam-Ho Kim),최기철( Ki-Chul Choi) 대한임상노인의학회 2005 대한임상노인의학회지 Vol.6 No.2
Background: The purposes of this study are to assess the incidence of mammographically detected breast arterial calcifications, and to evaluate the association between breast arterial calcifications and chronic medical diseases such as hypertension, diabetes mellitus, hyperlipidemia, obesity, osteoporosis in elderly Korean women. Methods: The records of total 303 women who underwent mammography at a health care center from January 2004 to January 2005 were retrospectively reviewed. Their mammography, body mass index, blood pressure, plasma glucose, lipid profile, serum total calcium, and bone mineral density were precisely reviewed. Bone mineral density was examined by dual energy X-ray absorptiometry. Especially, we focused on the 82 women who aged more than 60 years, and their data were analyzed according to the presence (calcification group) or absence (control group) of breast arterial calcifications. Results: The incidence of breast arterial calcifications in the 303 subjects was 17.2%. The incidence of breast arterial calcifications showed statistically significant difference according to the age, with a higer incidence in older women (P<0.05). Half of women who aged more than 60 years showed breast arterial calcifications. There was no significant association between the prevalences of hypertension, diabetes mellitus, hyperlipidemia, obesity, and breast arterial calcifications. However, we found that the prevalence of osteoporosis in the calcification group (51.2%) was significantly higher than the control group (26.8%) (P<0.05). Conclusion: Breast arterial calcifications on mammogram in Korean women aged more than 60 years are a reliable indicator of osteoporosis, and not associated with hypertension, diabetes mellitus, hyperlipidemia, obesity. 연구배경: 유방촬영 시에 종종 볼 수 있는 유방동맥 석회화에 관한 우리나라 노인 여성에서의 발생 빈도를 조사하고, 고혈압, 당뇨병, 고지혈증, 비만, 골다공증 등의 내과적 만성질환들과의 연관성을 조사해 보고자 연구하였다. 방법: 2004년 1월부터 2005년 1월까지 유방촬영 및 건강검진 프로그램을 받기 위해 검진센터를 방문한 총 303명의 여성을 대상으로 하였다. 대상 여성들에게 키, 체중, 체질량 지수, 혈압, 골밀도검사 및 혈액검사를 시행하였으며, 60세 이상의 노인 여성 82명을 최종 연구대상자로 선정하여 유방동맥 석회화가 있는 군(석회화군)과 없는 군(대조군)으로 나누어 내과적 만성질환들과의 연관성을 조사하였다. 모든 결과들은 후향적으로 분석하고 평가하였다. 결과: 총 303명의 대상 여성 중에서 유방동맥 석회화가 있는 여성은 52명(17.2%)이었고, 60세 이상의 여성 82명 중에서는 41명(50.0%)이었다. 유방동맥 석회화 현상은 나이의 증가에 따라서 통계학적으로 의의있게 많아짐을 보였다(P<0.05). 60세 이상 노인 여성 중의 석회화군 41명과 대조군 41명간에 있어서 고혈압, 당뇨병, 고지혈증, 비만의 유병률은 서로 유의한 차이는 없었으며, 골다공증 유병률만 석회화군에서 51.2%로 대조군의 26.8%보다 의의있게 높았다(P<0.05). 결론: 60세 이상 노인 여성에서의 유방동맥 석회화는 상당히 흔하였으며, 골다공증과 유의한 연관성이 있었다.
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마우스 小腸組織의 Ornithine Aminotransferase에 關한 硏究
노혜원,최경수,임방은,김종석,박병현,김형로 의과학연구소 1991 全北醫大論文集 Vol.15 No.4
Ornithine aminotransferase catalyzes the transfer of δ-amino group L-ormithine to α-ketoglutarate to yield glutamic- γ - sernialdehyde and glutamate. In present study, ornithine aminotransferase from mouse small intestine was puriried and its biochemical properties were studied. 1.Ornithine aminotransferase activity ws higher in mouse small intestine than in liver and kidnery. The enzyme ws found to be mostly located in cytosolic fraction of small intestine, but present in mitochondrial fraction of liver and kidney. 2.The cytosolic enzyme was very unstable, but the stabiling was enhanced by the presence of EDTA and glycerol. 3.The cytosolic ornithine aminotransferase was purified to homogeniety from mouse small intestine by heat treatment, calcium-phosphate gel adsorption, DEAE= cellulose chromatography, Sephadex G-100 gel filtration and Protein Analysis I-125 gel filtration. The specific a activity of 240-fold purified enzyme was 806 unit/mg protein. 4.The purified enzyme is composed of a single polypeptide chain with molecular weight of 46,000-47,000 daltons and its optimum pH was 8.5. The isoelectric point of the enzyme was found to be pH 5.3, suggesting that the content of acidic amoino acids is relatively high in the enzyme protein.
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