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만성폐쇄성폐질환을 동반한 탄광부진폐증자의 혈청 중 LD 및 CRP 농도
이종성,신재훈,이유림,백진이,최병순,Lee, Jong Seong,Shin, Jae Hoon,Lee, YouLim,Baek, JinEe,Choi, Byung-Soon 대한임상검사과학회 2017 대한임상검사과학회지(KJCLS) Vol.49 No.3
Coal workers' pneumoconiosis (CWP) and chronic obstructive pulmonary disease (COPD) are characterized as chronic inflammation of the lung in miners exposed to coal mine dust. The aim of the present study was to compare the levels of serum lactate dehydrogenase (LD) and C-reactive protein (CRP) as the inflammatory indices between subjects with CWP and those with CWP and COPD (CWP+COPD), among a total of 97 subjects (27 control, 40 CWP, and 30 CWP+COPD patients). The mean levels of serum LD (165.7 vs 184.6 U/L, p=0.016) and CRP (0.08 vs 0.15 mg/dL, p=0.002) in subjects with CWP were higher than those of in subjects without CWP. The mean level of serum CRP (0.10 vs 0.19 mg/dL, p=0.008) in subjects with COPD was higher than that in subjects without COPD. In an analysis of covariance adjusted by age, the mean level of serum CRP showed statistical significance among the study groups, control, CWP, and CWP+COPD (0.07 vs 0.13 vs 0.19 mg/dL, p=0.005); the mean level of serum CRP in the CWP+COPD group was significantly higher than that of the control group (p=0.001). The results suggest that a high level of CRP in the serum may be associated with CWP and COPD in retired coal miners.
이종성(Lee Jong-Seong),이희성(Lee Hi-Sung),문대섭(Moon Dae-Seop) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
북한산은 수도서울의 천연적인 아름다움을 갖고 있는 국립공원으로 시간적으로는 현재의 시점에서 30년 기준으로, 공간적으로는 북한산 및 수도권 일대로 하였으며, 북한산을 관광자원으로 하기 위해 환경친화적인 산악철도개발과 노약자와 장애인 등 교통 편의 증진을 위해 북한산 관광철도개발의 가능성과 산악 열차이용자에 대한 지불의사 수준에 따른 경제성 변화를 연구하고 추진방안을 파악하여 정책적 방향을 제시하고 기술적인 개발 가능성을 검토하였다. Bukhansan National Park is located in the capital city, Seoul, and it provides various kinds of natural beauty and wonderful scenery. The scope of this study is considering 30 years from now, and covering Bukhansan and its surroundings. This study is made to set up the development plan, to guide the strategic direction, and to review the technical feasibility of mountain railway over Bukhansan National Park by examining the feasibility and the user's willingness to pay for the environmentally-friendly mountain railway and more convenient access to mobility-disabled persons.
다핵방향조탄화수소류에 노출된 페인트 취급 근로자에서 요 중 1-Hydroxypyrene을 이용한 생물학적 모니터링
이종성 ( Jong Seong Lee ),김은아 ( Eun A Kim ),이용학 ( Yong Hag Lee ),문덕환 ( Deog Hwan Moon ),김광종 ( Kwang Jong Kim ) 한국산업위생학회 2005 한국산업보건학회지 Vol.15 No.2
To investigate the exposure effect of polynuclear aromatic hydrocarbons (PAHs), we measured airborne total PAHs as an external dose, urinary 1-hydroxypyrene (1-OHP) as an internal dose of PAHs exposure, and analyzed the relationship between urinary 1-OHP concentration and PAHs exposure. The study population contained 44 workers in steel-pipe coating and paint manufacture industries. The airborne PAHs was obtained during survey day, and urine were sampled at the end of shift. Personal information on age, body weight, height, eniployment duration, smoking habit, and alcohol consumption was obtained by a structured questionnaire. Airborne PAHs were analyzed by the gas chromatograph with mass selective detector. Urinary 1-OHP levels were analyzed by the high performance liquid chromatograph with ultraviolet wavelength detector. For statistical estimation, t-test, X-test, analysis of variance, correlation analysis, arid regression analysis were executed by SPSS/PC (Windows version 10). The mean of environmental total PAHs was 87.8±7.81 ㎍/m3. The mean concentration (526.5±2.85 ㎍/m3) of workers in steel-pipe coating industries using coal tar enamel was the higher than that (17.5±3.36 ㎍/m3) of workers in paint manufacture industries using coal tar paint. The mean of urinary 1-OHP concentration (51.63±3.144 μ mol/mol creatinine) of workers in steel-pipe coating industries was the higher than that (2.334.±709 μ mol/mol creatinine) of workers in paint manufacture industries. The mean of urinary 1-OHP concentration of smokers was the higher than that of non-smokers. There was significant correlation between the urinary concentration of 1-OHP and the environmental concentration of PAHs (r=O.S48, p<0.001), pyrene(r=0.859, p<0.001), and urinary cotinine (r=0.324, p<0.05). The regression equation between the urinary concentration of 1-OHP in μg/g creatinine(C(1-OHP)) and airborne concentration of PAHs (or pyrene) in μg/m3 (C(PAHs) or Cpyrene) is: Log (C(1-OHP))=-0.650+0.889×Log(C(PAHs)), where R2=0.694 arid n=38 for p<0.001. Log (C(1-OHP))=1.087+0.707×Log(Cpyrene), where R2=0.713 arid n=38 for p<0.001. From the results of stepwise multiple regression analysis about 1-OHP, significant independents were total PAHs and urinary cotinine (adjusted R2=0.743, p<0.001). In this study, there were significant correlation between the urinary concentration of 1-OHP and the airborne concentration of PAHs. The urinary 1-OHP was effective index as a biomarker of airborne PAHs in workplace. But it was influenced by non-occupational PAHs source, smoking.