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부문종,이강오,최임순,최치용 ( Moon Jong Boo,Kang Oh Lee,Rim Soon Choe,Chee Yong Choi ) 한국환경생물학회 1991 환경생물 : 환경생물학회지 Vol.9 No.2
To understand the effect of Arsenic(As) on the rat liver mitochondria, various amounts of As were added to the mitochondrial preparation. When pyruvate and malate were used as respiration substrate, the mitochondrial respiration was inhibited in the presence of 0.1∼1.0mM of As, but when succinate was used as substrate, the respiration was only inhibited at 1.0∼2.0mM of As. This suggests that As might inhibit NADH ubiquinone reductase(complex Ⅰ). 0.4 mM of As reduced the activity of complex Ⅰ and brought about induction of swelling and inhibition of ATP driven contraction of mitochondria. These experiments again suggest that As has an inhibitory effect on the mitochondrial respiration by selectively inhibiting the electron transport mediated by complex Ⅰ of respiratory chain and by affecting the integrity of mitochondrial membrane.
미토콘드리아의 팽윤과 수축에 따른 분광흡광도와 미세구조간의 비연관성
부문종,이강오,김재진,최임순,Boo, Moon-Jong,Lee, Kang-Oh,Kim, Jae-Jin,Choe, Rim-Soon 한국현미경학회 1990 Applied microscopy Vol.20 No.2
Ultrastructural and spectrophotometric studies on mitochondrial swelling and contraction were carried out. All mitochondria just after isolated from rat liver showed condensed conformation. When mitochondria were incubated in 0.25 M sucrose only, they were moderately swollen and the absorbance at 520 nm was slightly decreased. Adding ATP to sucrose caused the absorbance to increase and the mitochondria to contract partially. KCl solution of 0.3 M induced marked decrease of absorbance and swelling of mitochondria. When ATP was added to KCl, increase of the absorbance and no contraction of the mitochondria excluding increased electron density of mitochondrial intermembranes were observed. Markedly decreased absorbance and somewhat largely swelled mitochondria in sodium arsenite solution of 0.4 or 1.0 mM were observed. When ATP was added to sodium arsenite, the absorbance increased slightly but mitochondria were more contracted than those in KCl-treated group. Above results indicate that the absorbance may not be correlated to morphological observations in the mitochondrial swelling and contraction.
이현(Lee, Hyun),김정현(Kim J.H.),이성복(Lee, Sung-Bok),엄정희(Eom, Jeong-Hee),이강오(Rhee, Kang-Oh),이태용(Lee, Tae-Yong) 한국산학기술학회 2013 한국산학기술학회논문지 Vol.14 No.8
본 연구의 목적은 연령별 난시빈도를 알아보고 굴절난시와 각막난시, 내부난시의 연령에 따른 변화와 변화 요인을 알아보고자 하였다. 2010년 7월에 만5~59세의 청주지역 거주자 1,017명을 대상으로 굴절력과 각막전면굴절력 을 자동굴절검사기로 측정하였다. 난시빈도는 전체적으로 22.7%이었고, 5~9세에 8.9%에서 20대에 36.8%로 증가하였 다. 40대에는 19.2%로 감소하였다가 50대에 28.6%로 다시 증가하였다. 굴절난시와 각막난시, 내부난시의 J<sub>45</sub>성분은 연 령군에 상관없이 거의 일정하였으나 굴절난시와 각막난시의 J<sub>0</sub>성분은 30대 이후 감소하는 경향성을 보였다. 또한 J<sub>0</sub>성 분 중에서 수직방향 굴절력은 연령에 따라 변화가 없이 일정하였지만 수평방향 굴절력은 연령에 따라 큰 변화가 있 었다. 연령에 따른 난시빈도의 변화는 수평방향 굴절력의 변화에 기인하는 것으로 판단된다. The purpose of present study was to determine the frequency of RA with age and to investigate the age-related trends and changing-factors in RA, CA and IAs. The refractive power of the eye and the power of corneal anterior surface were measured with auto-refractor among 1,017 inhabitants aged 5 to 59 years in Cheongju in July 2010. The overall frequency of RA was 22.7%, and frequency of RA increased from 8.9% in 5~9 years age group to 36.8% in 20~29 years age group. It then dipped to 19.2% in 40~49 years age group but increased again 28.6% in 50~59 years age group. J<sub>45</sub> components for RA, CA, and IAs were fairly stable in different age groups, the changes in J<sub>0</sub> components for both RA and CA appeared to be decreased after age of 30 years. In addition, the refractive power on the vertical direction was changed slightly with age, but the refractive power on the horizontal direction was changed significantly with age. It was expected that the change in the frequency of astigmatism with age was due to the change in the refractive power of horizontal meridian.
Do Kyung Lee(이도경),Byung Yong Kang(강병용),Myung Jun Chung(정명준),Kang Oh Lee(이강오),Kyungjae Kim(김경제),Nam Joo Ha(하남주) 환경독성보건학회 2008 환경독성보건학회지 Vol.23 No.1
유산균인 비피도박테리아는 사람과 동물에서 유익한 프로바이오틱 미생물로 알려져 있다. 본 연구에서는 이러한 비피도박테리아 균주의 분류를 위한 repetitive DNA element PCR fingerprinting (ERIC-또는 TAP-PCR)의 사용을 평가하였다. 사람분변으로부터 분리한 알려지지 않은 비피도박테리움 균주와 한국생명공학연구원 생물자원센터로부터 분양받은 표준균주를 가지고 분류 및 동정에 ERIC-PCR과 TAP-PCR을 이용한 RAPD-fingerprinting을 수행하였다. 그 결과 비피도박테리움 균주에 대한 속과 종단위의 분류가 가능하였으며, 실험에 사용된 모든 비피도박테리움 균주는 RAPD-fingerprinting 분석을 통해 유전적 다양성을 확인하였다. 또한 ERIC2와 TAPI 프라이머를 이용한 실험에서는 Bifidobacterium adolescentis 특이 유전자 단편을 확인하였으며 이는 B. adolescentis 균주의 동정에 유용할 것으로 사료된다.
한국인 본태성 고혈압군에서 에스트로젠 수용체-$\alpha$(유전자에 존재하는 다형성의 분포에 관한 연구
김지영,강병용,이강오,Kim Ji Young,Kang Byung Yong,Lee Kang Oh 환경독성보건학회 2005 환경독성보건학회지 Vol.20 No.3
Blood pressure, obesity and bone mineral density are multifactorial traits influenced by genetic factor. The purpose of this study was to clarify the association between three genetic polymorphisms in the estrogen receptor-$\alpha$ (ER -$\alpha$) gene and essential hypertension in korean population. One hundred and seventy-one people including 90 normotensives and 81 essential hypertentives were recruited. Among genetic polymorphisms studied, the Xba I RFLP in the intron 1 of this gene polymorphism was significantly associated with essential hypertension in women, suggesting the sexual dimorphism in genetic effect (P (<) 0.05). Further studied suggest that a larger sample size of this study are needed.
자발적 프로그램의 성과 분석: 30/50프로그램 중심으로
김홍균 ( Hong Kyun Kim ),이강오 ( Kang Oh Yi ),이윤수 ( Yoon Soo Lee ),이정민 ( Jung Min Lee ),허정 ( Jung Hur ),홍성신 ( Sung Shin Hong ) 한국환경경제학회·한국자원경제학회(구 한국환경경제학회) 2013 자원·환경경제연구 Vol.22 No.3
본 논문은 업체들의 자발적인 참여를 통해 이루어지고 있는 우리나라의 대표적인 화학유해물질 배출저감 프로그램인 30/50프로그램의 성과를 사업체별, 물질별, 연도별 미시적 패널자료를 이용하여 분석하였다. 2004년부터 2010년까지 7년간의 배출량 추이를 실증 분석한 결과에 따르면, 자발적 프로그램임에도 불구하고 프로그램에 참여한 업체들의 화학 물질 배출량이 비자발적 협약 업체에 비해 연간 2.7톤에서 1.2톤 적은 것으로 나타났다. 이와 같은 자발적 프로그램의 배출량 저감 효과는 협약물질에서 강하게 나타났을 뿐만 아니라 그 정도는 다소 약했지만 비협약물질에서도 나타났다. 이는 협약업체들이 전반적으로 화학유해물질을 저감하기 위한 기술을 도입한 결과라고 볼 수 있다. In this paper we evaluate the performance of voluntary environmental agreements in South Korea, called as the 30/50 program. We constructed establishment- and chemical substance-level panel data from 2004 to 2010 by using the Pollutant Release and Transfer Registers (PRTR) Information System. Although firms voluntarily participate in the program and the agreement is not binding, we find that the chemical materials released by the participating firms is substantially reduced by 1.2 to 2.7 tons. Although the abatement effect is more salient for those listed chemical substances in the agreements, the reductions in other substances are also significant. This implies that participating firms adopted new technologies that could reduce environmental hazards.