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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.
소변 중 디아민을 이용한 디이소시아네이트 노출 근로자의 생물학적 모니터링
이종성 ( Jong Seong Lee ),김부옥 ( Boowook Kim ),신정아 ( Jungah Shin ),백진이 ( Jinee Baek ),신재훈 ( Ae Hoon Shin ),김지혜 ( Ji-hye Kim ) 한국산업보건학회 (구 한국산업위생학회) 2016 한국산업보건학회지 Vol.26 No.2
Objectives: Diisocyanates are a potent inducer of diseases of the airways, especially asthma. In this study, toluenediamine(TDA)and methylenedianiline(MDA) in urine were evaluated as biomarkers of exposure to tolunenediisocyanate(TDI) and methylenediphenyl diisocyanate(MDI), respectively. Methods: Workers exposed to TDI and MDI, as well as non-occupationally exposed subjects, were studied and pre- and post-shift urine samples were collected from 8 control subjects and 8 workers from a factory which manufactures polyurethane products for reducing noise and vibration in automobiles. Airborne TDI and MDI(n=8) were sampled on solvent-free glass filters impregnated with n-butyl amine and detected by liquid chromatography atmospheric pressure ionization tandem mass spectrometry. Urinary TDA and MDA were detected as pentafluoropropionic acid an hydride(PFPA) derivatives by liquid chromatography electrosprayionization tandem mass spectrometry. Results: The median levels of urinary 2,6-TDA(p<0.001), 2,4-TDA(p=0.001), and MDA(p<0.001) of workers in post-shiftsamples were significantly higher than those of controls. The median levels of urinary 2,6-TDA(0.63 ㎍/gcreatinine vs 0.34 ㎍/gcreatinine, p=0.017) and MDA(4.21 ㎍/g creatinine vs 3.18 ㎍/g creatinine, p=0.017) of workers in post-shift samples were significantly higher than those of the pre-shift samples. There were significant correlations between the urinary 2,6-TDA,2,4-TDA, and MDA of workers in post-shift samples and the airborne 2,6-TDI(rho=0.952, p<0.001), 2,4-TDI(rho=0.833,p=0.001), and MDI(rho=0.952, p<0.001).Conclusions: These urinary diamines, metabolites of diisocyanates, in post-shift samples were useful biomarkers to assessoccupational exposure to diisocyanates
28-day inhalation toxicity of graphene nanoplatelets in Sparague-Dawley rats
Jinkwon Kim(김진권),Jaehoon Shin(신재훈),Miseong Jo(조미성),Younghoon Kim(김영훈),Eungyeong Son(손은경),Hyeseon Park(박혜선),Byeonghak Moon(문병학),Jongseong Lee(이종성),Jinee Baek(백진이),Boowook Kim(김부욱),Jinsik Kim(김진식),Kangh 환경독성보건학회 2016 한국독성학회 심포지움 및 학술발표회 Vol.2016 No.10