Annals of Occupational and Environmental Medicine

Won Jin Lee

7 Articles

Effect of Occupational Lead on Male Sex Hormones: Hyeong Su Kim, Soung Hoon Chang, Won Jin Lee, Jae Wook Choi, Jong Tae Park, Nam Won Paik, Rok Ho Kim; Korean Journal of Occupational and Environmental Medicine 2001;13(1):44-54. Published online March 31, 2001; DOI: https://doi.org/10.35371/kjoem.2001.13.1.44

Abstract PDF: OBJECTIVES
This study was performed to evaluate the relationship between biological markers of lead exposure and level of sex hormones in men occupationally exposed to lead.
METHODS
In this study, 33 male workers who employed at smelting and battery factories were compared with 33 male workers who were not exposed to lead. As biological markers of lead exposure, hemoglobin, ZPP, blood lead and urine lead were measured. As sex hormones, FSH, LH, testosterone, SHBG and FTI were determined.
RESULTS
Hemoglobin level was significantly lower in exposed than in nonexposed group. Level of ZPP, blood lead, and urine lead were significantly higher in exposed than in nonexposed group. There was a trend that level of FSH, testosterone, SHBG, and FTI was lower in exposed than in nonexposed group respectively, but there were no statistical significance. In exposed group, FSH level was correlated with age, ZPP, and blood lead; testosterone level was correlated with hemoglobin, blood lead, urine lead, and SHBG; and FTI level was correlated with age.
CONCLUSIONS
Level of some sex hormones were lower in exposed than in nonexposed group but there were no statistical significance between the exposed and the nonexposed group. But level of sex hormones were correlated with several biological markers of lead in exposed group. It suggests that occupational lead exposure might affect sex hormones.

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A Meta-analysis on the Association between Bladder Cancer and Glutathione S transferase mu Genetic Polymorphism: Sang Baek Koh, Bong Suk Cha, Jong Ku Park, Chun Bae Kim, Myung Gun Kang, Ki Woong Kim, Won Jin Lee, Soung Hoon Chang; Korean Journal of Occupational and Environmental Medicine 1999;11(1):13-23. Published online March 31, 1999; DOI: https://doi.org/10.35371/kjoem.1999.11.1.13

Abstract PDF: This study was conducted to integrate the results of studies which assess the relationship between bladder cancer and Glutathione S transferase mu genetic polymorphism. We retrieved the literatures using MEDLINE search, with bladder cancer and Glutathione S transferase as key words, which were reported from 1980 to October 1998. The criteria for quality evaluation were as follows; 1) The paper should have histologically confirmed bladder cancer as case definition. 2) The paper should use the GSTM1 gene typing as method for analysis. Among 59 retrieved articles, fourteen studies were selected for quantitative meta-analysis. The overall effect size of the risk of bladder cancer due to GSTM1 was calculated by common odds ratio. Before the integration of each effect sizes into common effect sizes, the homogeneity test were conducted. All studies were case control design and cases were transitional cell carcinoma or squamous cell carcinoma of bladder. And only four papers used matching technique. Homogeneity of studies were rejected by Breslow-Day test(P<0.01), so random effect model was used for evaluation of odds ratio. The overall odds ratio of GSTM1 associated with bladder cancer was 1.55 (95% confidence interval 1.27 to 1.90) and cumulative odds ratio became more stable when the study subjects were over 1,500. Our result suggested that positive association be found between GSTM1 genetic polymorphism and bladder cancer.

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Sister Chromatid Exchanges in Workers Occupationally Exposed to Ethylene Oxide: Soung Hoon Chang, Won Jin Lee, Cheong Sik Kim, Cheong Hyun Hwang, Jong Tae Park, Dae Seong Kim, Young Whan Kim; Korean Journal of Occupational and Environmental Medicine 1998;10(4):428-437. Published online December 31, 1998; DOI: https://doi.org/10.35371/kjoem.1998.10.4.428

Abstract PDF

Operators of hospital sterilizers who use ethylene oxide (EtO) were studied to determine the exposure of EtO level and the frequency of sister chromatid exchanges (SCEs) from June 12 to July 20, 1997. To evaluate SCEs in the peripheral blood cells, we selected 22 workers at the central supply room of 4 university hospitals and 22 unexposed workers at the same hospitals according to match sex, age, and smoking habit and also did questionnaires. The mean air concentrations (8-hr TWA) of EtO at 4 university hospitals were less than 1 ppm. The SCE frequencies in exposed workers to EtO and controls were normally distributed. The SCE frequencies in exposed workers to EtO and controls were 6.42+/-.63, 5.86+/-.69, respectively and their differences were statistically significant (p=0.0093). But there were no statistically significant differences in smoking, alcohol intake, coffee drinking. Especially smokers who exposed to EtO were increased SCE statistically significant than the exposed group who did not smoke.

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Analysis of Micronuclei and Its Association with Genetic Polymorphisms in Hospital Workers Exposed to Ethylene Oxide
Sun-Yeong Lee, Yang-Jee Kim, Young-Joo Choi, Joong-Won Lee, Young-Hyun Lee, Mi-Yeon Shin, Won Kim, Chung-Sik Yoon, Sung-Kyoon Kim, Hai-Won Chung
Korean Journal of Environmental Health Sciences.2011; 37(6): 429. CrossRef

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Plasma Malondialdehyde, alpha-tocopherol and Erythrocyte Superoxide Dismutase Activity with Blood Level of Heavy Metals in Welders: Won Jin Lee, Cheon Hyun Hwang, Soung Hoon Chang, Byung Chul Chun, Hae Joon Kim; Korean Journal of Occupational and Environmental Medicine 1998;10(2):240-250. Published online May 31, 1998; DOI: https://doi.org/10.35371/kjoem.1998.10.2.240

Abstract PDF: We investigated the association between the oxidative stress and the concentration of heavy metals in blood among welders. The study subjects were male manual CO2 welders(N=127) exposed to several heavy metals. The age distribution was from 20 to 63 (GM=33.7) and the geometric mean(GM) of work duration was 4.2 years. We analyze the level of blood lead, cadmium, managese and chromium which was related with the oxidative stress in the animal studies. Blood selenuim, plasma malondialdehyde (MDA), plasma alpha-tocopheol and orythrocyte superoxide dismutase (SOD) were analyzed as biological markers of the oxidative stress. The results of univariate analysis showed that the plasma MDA was significantly correlated with D-tocopherol (r=0.327) and blood selenium (r=0.313) concentration. But we could not find out any relationship between the erythrocyte SOD activities and those metal concentrations. Neither smoking nor alcohol consumption was related to the level of heavy metals and the oxidative stress biomarkers. As the results of multiple regression analysis with stepwise selection method, 1) the change of MDA level were dependant with the level of alpha-tocopherol and blood selenium concentration (R2=19.7), 2) the plasma alpha-tocopherol level was dependant with MDA and blood chromium concentration (R2=15.6), 3) in case of erythrocyte SOD activity, only the duration of work was significantly selected.

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A Study of the Correlation Between the Activity of Erythrocyte Pyrimidine 5'-Nucleotidase and Urinary N-Acetyl-beta-D-Glucosaminidase in Lead Exposed Workers: Soung Hoon Chang, Cheon Hyun Hwang, Won Jin Lee, Soung Soo Lee, Byung Kook Lee, Hong Kyu Suh, Jae Wook Choi; Korean Journal of Occupational and Environmental Medicine 1997;9(2):258-266. Published online June 30, 1997; DOI: https://doi.org/10.35371/kjoem.1997.9.2.258

Abstract PDF: In this study, we measured the activity of the erythrocyte pyrimidine 5'-nucleotidase (P5N) and urinary N-acetyl-beta-D-glucosaminidase (NAG) from 154 workers exposed to lead and 43 workers not exposed. We analyzed the correlation of the P5N activity and NAG activity with other biological exposure indices of lead such as blood lead (PbB) and zinc protoporphyrin (ZPP). The measurement was performed by using high performance liquid chromatography (HPLC), spectrophotometer and atomic absorption spectrophotometer. The results are as follows: 1. The mean value of P5N activity for workers exposed to lead was 9.50+/-.13 micromol uridine/hr/g Hb and 11.60+/-.2 micromol uridine/hr/g Hb for workers not exported. The P5N activity showed a normal distribution, but the other indices of lead showed logarithmic normal distributions. 2. The P5N activity and ZPP were decreased as PbB wag increased. But the NAG activity had no correlation with changes of PbB. 3. The correlation coefficients of the P5N activity with other biological exposure indices of lead such as PbB, ZPP, NAG activity were -0.72, -0.55, and 0.05, respectively. We speculated that the P5N activity can be used as a reliable biological exposure index of lead but NAG activity can be used as a biological management index of lead.

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Prevalence of Asbestosis in Korean Asbestos Industry: Do myung Paek, Nam Won Paik, Jung Deun Choi, Mi A Son, Jung Gi Im, Won Jin Lee, Young Hahn Moon, Jung Sun Park, Byung Soon Choi; Korean Journal of Occupational and Environmental Medicine 1995;7(1):46-57. Published online February 28, 1995; DOI: https://doi.org/10.35371/kjoem.1995.7.1.46

Abstract PDF

Asbestos industry has been in operation over 60 years in Korea. However, the prevalence of asbestosis has not been yet reported. With rapid turn-over of workers, previous cross-sectional studies of current workers on the job could not find cases with exposures long enough for the development of asbestosis. This study was done to evaluate asbestosis prevalence of those worksites with operation history of more than 20 years. In total, 139 workers from 5 worksites were examined. Asbestos industries covered in the study include 2 asbestos textile, 1 brake lining, and 2 ship repairing worksites. Chest x-ray was taken from all workers and read by two exports familiar with pneumoconiosis classification according to 1980 ILO guidelines. Those with findings compatible with asbestosis were further checked with high resolution computerized tomography (HRCT). Pulmonary function tests were done according to ATS guidelines, and occupational and previous medical history was taken through a standardized interview. Air-borne asbestos was measured according to NI0SH method 7400. The air-borno asbestos concentrations ranged from 0.2-1.3 f/cc for asbestos textile, from 0.7~l.0 f/cc for brake lining, and from 6.3-7.8 f/cc during asbestos removal at ship repairing worksite. Of the 139 workers 25 had abnormal chest radiographic findings, and 10 of them had findings compatible with pneumoconiosis. When work history and current asbestos measurements were accounted, 9 workers who had more than 10 years of asbestos exposure history showed chest radiographic findings of pneumoconiosis with Finally, 4 workers showed finding of pulmonary fibrosis and/or pleural thickening at HRCT, and 2 of them had restrictive lung function changes. The study results showed that, among 139 sutjects, there were 4 (3%) definite asbeatosis cases confirmed with HRCT. The prevalence of probable asbestosis was 7% for 10-14 years of exposure, 13% for 15-19 years of exposure, and 23% for 20 or more years of exposure. The prevalence of compensable asbestosis with abnormal lung function was 4-6% for those with 15 or more years of exposure.

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Sustainable management of hazardous asbestos-containing materials: Containment, stabilization and inertization
Shiv Bolan, Leela Kempton, Timothy McCarthy, Hasintha Wijesekara, Udara Piyathilake, Tahereh Jasemizad, Lokesh P. Padhye, Tao Zhang, Jörg Rinklebe, Hailong Wang, M.B. Kirkham, Kadambot H.M. Siddique, Nanthi Bolan
Science of The Total Environment.2023; 881: 163456. CrossRef
Asbestos Exposure Level and the Carcinogenic Risk Due to Corrugated Asbestos-Cement Slate Roofs in Korea
Eun-Soo Lee, Young-Ki Kim
International Journal of Environmental Research and Public Health.2021; 18(13): 6925. CrossRef
Gastric and rectal cancers in workers exposed to asbestos: a case series
Byeong Ju Choi, Saerom Lee, Iu Jin Lee, Soon Woo Park, Sanggil Lee
Annals of Occupational and Environmental Medicine.2020;[Epub] CrossRef
The Asbestos Ban in Korea from a Grassroots Perspective: Why Did It Occur?
Yu-Ryong Yoon, Kyeong Kwak, Yeyong Choi, Kanwoo Youn, Jinwook Bahk, Dong-Mug Kang, Domyung Paek
International Journal of Environmental Research and Public Health.2018; 15(2): 198. CrossRef
A decade of malignant mesothelioma surveillance in Korea
Soon‐Hee Jung, Hyoung‐Ryoul Kim, Sang‐Baek Koh, Suk‐Joong Yong, Myoung Ja Chung, Chang‐Hun Lee, Joungho Han, Min‐Seob Eom, Sung‐Soo Oh
American Journal of Industrial Medicine.2012; 55(10): 869. CrossRef
Comparison of cancer incidence between production and office workers at a shipyard in Korea: A retrospective cohort study from 1992 to 2005
Kyoung‐Sook Jeong, Yangho Kim, Moon‐Chan Kim, Cheol‐In Yoo
American Journal of Industrial Medicine.2011; 54(9): 719. CrossRef
Occupational and Environmental Asbestos Exposure in Korea
Jung-Wan Koo, Hyoung Ryoul Kim
Journal of the Korean Medical Association.2009; 52(5): 442. CrossRef
Overview of Asbestos Issues in Korea
Hyoung Ryoul Kim
Journal of Korean Medical Science.2009; 24(3): 363. CrossRef
Compensation and Diagnosis of Asbestos Related Disease
Soo-Geun Kim
Korean Journal of Family Medicine.2009; 30(5): 335. CrossRef
Asbestos-related Diseases among Asbestos Textile Factory Workers and Residents Around the Factory
Dong-Mug Kang, Dong-Chul Gu, Kun-Hyung Kim
Journal of the Korean Medical Association.2009; 52(5): 482. CrossRef
Asbestos Problems Yet to Explode in Korea
Domyung Paek
International Journal of Occupational and Environmental Health.2003; 9(3): 266. CrossRef
The Effect of Silica Dust on Ventilatory Function of Foundry Workers
Jung Wan Koo, Chee Kyung Chung, Chung Yill Park, Se‐Hoon Lee, Kang‐Sook Lee, Young‐Man Roh, Hyeon Woo Yim
Journal of Occupational Health.2000; 42(5): 251. CrossRef
Asbestos and non-asbestos fiber content in lungs of Korean subjects with no known occupational asbestos exposure history
Je Yu, Young Hahn Moon, Kiyoshi Sakai, Naomi Hisanaga, Jung Duck Park, Yasuhiro Takeuchi
Environment International.1998; 24(3): 293. CrossRef

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A follow up survey of workers with occupational diseases detected in the periodic health examination: Won Jin Lee, Dae Seong Kim, Do Myung Paek; Korean Journal of Occupational and Environmental Medicine 1993;5(2):283-294. Published online September 30, 1993; DOI: https://doi.org/10.35371/kjoem.1993.5.2.283

Abstract PDF: No abstract available.

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