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Vu TS, Nishijo M, Nishino Y, Vu CT, Nguyen VC, Pham TT, Do NA, Vu NH, Le DC, Dao VN, Dinh VH, Pham NT, Do DT. Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in blood samples from historically herbicide-sprayed areas and rural and industrialized unsprayed areas in Vietnam. CHEMOSPHERE 2023; 326:138331. [PMID: 36958494 DOI: 10.1016/j.chemosphere.2023.138331] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/12/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
We investigated dioxin concentrations in the blood of residents living in areas with different sources of dioxin pollution in Vietnam. A total of 823 individual blood samples were collected in 2014-2015 from residents of 16 provinces in Vietnam who were born between 1972 and 1976, and who lived in rural unsprayed areas (the control area), industrialized unsprayed areas (the industrialized area), and areas in which herbicides were sprayed during the Vietnam War (the sprayed area). After blood collection, pooled samples were obtained by combining 10-25 individual samples by age and sex for each area. A total of 6, 10, and 26 pooled blood samples were obtained for the control area, industrialized area, and sprayed area, respectively. The concentrations of 17 polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans were quantified in each pooled blood sample. The concentrations of TCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,7,8-PeCDF, and OCDF were significantly higher in the sprayed area than in the unsprayed area, which comprised the control and industrialized areas. The toxic equivalents of PCDDs, TCDD, 1,2,3,7,8-PeCDF, and 1,2,3,6,7,8-HxCDF were significantly higher in the sprayed area than in the control area. No significant difference in dioxin concentration was found between the sprayed and industrialized areas after adjusting for sex. The 1,2,3,6,7,8-HxCDF concentration was significantly higher in the industrialized area than in the control area. The findings indicate that there are different dioxin congener blood profiles in residents of industrialized areas and areas in which herbicides were historically sprayed during the Vietnam War.
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Affiliation(s)
- Tung Son Vu
- Department of Epidemiology, Vietnam Military Medical University, Ha Noi, 12108, Viet Nam
| | - Muneko Nishijo
- Department of Public Health and Epidemiology, Kanazawa Medical University, 920-0293, Japan
| | - Yoshikazu Nishino
- Department of Public Health and Epidemiology, Kanazawa Medical University, 920-0293, Japan
| | - Chien Thang Vu
- Ministry of Natural Resources and Environment, Hanoi, 11300, Viet Nam
| | - Van Chuyen Nguyen
- Department of Hygiene, Vietnam Military Medical University, Ha Noi, 12108, Viet Nam
| | - The Tai Pham
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 12108, Ha Noi, Viet Nam
| | - Ngoc Anh Do
- Department of Parasitology, Vietnam Military Medical University, Hanoi, 12108, Viet Nam
| | - Ngoc Hoan Vu
- Department of Epidemiology, Vietnam Military Medical University, Ha Noi, 12108, Viet Nam
| | - Duy Chi Le
- Department of Ultrasound, 103 Military Hospital, Vietnam Military Medical University, Hanoi, 12108, Viet Nam
| | - Van Nhat Dao
- Department of Urology, 103 Military Hospital, Vietnam Military Medical University, 12108, Ha Noi, Viet Nam
| | - Viet Hung Dinh
- Deparment of Psychiatric, 103 Military Hospital, Vietnam Military Medical University, Ha Noi, 12108, Viet Nam
| | - Ngoc Thao Pham
- Department of Functional Diagnosis, 103 Military Hospital, Vietnam Military Medical University, 12108, Ha Noi, Viet Nam.
| | - Duc Thuan Do
- Department of Stroke, 103 Military Hospital, Vietnam Military Medical University, 12108, Ha Noi, Viet Nam.
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Goldfarb DG, Zeig-Owens R, Kristjansson D, Li J, Brackbill RM, Farfel MR, Cone JE, Yung J, Kahn AR, Qiao B, Schymura MJ, Webber MP, Dasaro CR, Shapiro M, Todd AC, Prezant DJ, Boffetta P, Hall CB. Temporal association of prostate cancer incidence with World Trade Center rescue/recovery work. Occup Environ Med 2021; 78:699-706. [PMID: 34507966 PMCID: PMC8458078 DOI: 10.1136/oemed-2021-107405] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/20/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND The World Trade Center (WTC) attacks on 11 September 2001 created a hazardous environment with known and suspected carcinogens. Previous studies have identified an increased risk of prostate cancer in responder cohorts compared with the general male population. OBJECTIVES To estimate the length of time to prostate cancer among WTC rescue/recovery workers by determining specific time periods during which the risk was significantly elevated. METHODS Person-time accruals began 6 months after enrolment into a WTC cohort and ended at death or 12/31/2015. Cancer data were obtained through linkages with 13 state cancer registries. New York State was the comparison population. We used Poisson regression to estimate hazard ratios and 95% CIs; change points in rate ratios were estimated using profile likelihood. RESULTS The analytic cohort included 54 394 male rescue/recovery workers. We observed 1120 incident prostate cancer cases. During 2002-2006, no association with WTC exposure was detected. Beginning in 2007, a 24% increased risk (HR: 1.24, 95% CI 1.16 to 1.32) was observed among WTC rescue/recovery workers when compared with New York State. Comparing those who arrived earliest at the disaster site on the morning of 11 September 2001 or any time on 12 September 2001 to those who first arrived later, we observed a positive, monotonic, dose-response association in the early (2002-2006) and late (2007-2015) periods. CONCLUSIONS Risk of prostate cancer was significantly elevated beginning in 2007 in the WTC combined rescue/recovery cohort. While unique exposures at the disaster site might have contributed to the observed effect, screening practices including routine prostate specific antigen screening cannot be discounted.
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Affiliation(s)
- David G Goldfarb
- Department of Medicine, Division of Pulmonary Medicine, Montefiore Medical Center, Bronx, New York, USA
- Bureau of Health Services, World Trade Center Health Program, Fire Department of the City of New York, Brooklyn, New York, USA
| | - Rachel Zeig-Owens
- Department of Medicine, Division of Pulmonary Medicine, Montefiore Medical Center, Bronx, New York, USA
- Bureau of Health Services, World Trade Center Health Program, Fire Department of the City of New York, Brooklyn, New York, USA
- Department of Epidemiology and Population Health, Division of Epidemiology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Dana Kristjansson
- Department of Genetics and Bioinformatics, Norwegian Institute of Public Health, Oslo, Norway
- Center of Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Jiehui Li
- World Trade Center Health Registry, New York City Department of Health and Mental Hygiene, New York, New York, USA
| | - Robert M Brackbill
- World Trade Center Health Registry, New York City Department of Health and Mental Hygiene, New York, New York, USA
| | - Mark R Farfel
- World Trade Center Health Registry, New York City Department of Health and Mental Hygiene, New York, New York, USA
| | - James E Cone
- World Trade Center Health Registry, New York City Department of Health and Mental Hygiene, New York, New York, USA
| | - Janette Yung
- World Trade Center Health Registry, New York City Department of Health and Mental Hygiene, New York, New York, USA
| | - Amy R Kahn
- Bureau of Cancer Epidemiology, New York State Department of Health, Albany, New York, USA
| | - Baozhen Qiao
- Bureau of Cancer Epidemiology, New York State Department of Health, Albany, New York, USA
| | - Maria J Schymura
- Bureau of Cancer Epidemiology, New York State Department of Health, Albany, New York, USA
| | - Mayris P Webber
- Bureau of Health Services, World Trade Center Health Program, Fire Department of the City of New York, Brooklyn, New York, USA
- Department of Epidemiology and Population Health, Division of Epidemiology, Albert Einstein College of Medicine, Bronx, New York, USA
- Department of Epidemiology and Population Health, Division of Epidemiology, Montefiore Medical Center, Bronx, New York, USA
| | - Christopher R Dasaro
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Moshe Shapiro
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Andrew C Todd
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - David J Prezant
- Department of Medicine, Division of Pulmonary Medicine, Montefiore Medical Center, Bronx, New York, USA
- Bureau of Health Services, World Trade Center Health Program, Fire Department of the City of New York, Brooklyn, New York, USA
- Department of Epidemiology and Population Health, Division of Epidemiology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Paolo Boffetta
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, New York, USA
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Emilia-Romagna, Italy
| | - Charles B Hall
- Department of Epidemiology & Population Health, Division of Biostatistics, Albert Einstein College of Medicine, Bronx, New York, USA
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Oyama Y, Phuc HD, Honma S, Oanh NTP, Hung NX, Anh LT, Manh HD, Van Tung D, Nhu DD, Tan NM, Van Thuc P, Minh NH, Van Toan N, Okamoto R, Omote S, Nakagawa H, Van Chi V, Kido T. Decreased serum testosterone levels associated with 17β-hydroxysteroid dehydrogenase activity in 7-year-old children from a dioxin-exposed area of Vietnam. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 783:146701. [PMID: 33865132 DOI: 10.1016/j.scitotenv.2021.146701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
Since 2008, we have conducted epidemiological cohort studies on the relationship between dioxin exposure and disruption with children in the area sprayed with defoliants during the Vietnam War. In a long-term survey of children through the age of five, we observed androgen disruption due to decreased dehydroepiandrosterone (DHEA) and testosterone levels. In this study of 7-year-old, we separately elucidated androgen disruption for boys and girls, and discussed with respect to hormone disruption with sex differences on the steroid hormone biosynthesis process. This follow-up was conducted with 96 mother-child pairs in Vietnam (hotspot area: 45, non-sprayed area: 51). We took a questionnaire, the physical measurement and assayed 7 steroid hormones in their serum by LC-MS/MS. We examined the relationship between the hormone levels in the serum and dioxin levels in the maternal breast milk. The results showed that the serum DHEA level in the 7-year-old children in the hotspot recovered to levels in the non-sprayed area. The testosterone level of 66.5 pg/mL for boys in the non-sprayed area was 1.5 times the girls level of 44.6 pg/mL, a male-dominant effect. The testosterone level in boys and girls from the hotspot were significantly lower than in the non-sprayed area with no sex difference. The 17β-hydroxysteroid dehydrogenase (17β-HSD) activity was significantly higher in boys than in the girls from the non-sprayed area, but was significantly lower in the hotspot boys than in the non-sprayed area boys. Both the testosterone level and 17β-HSD activity in the boys were inversely correlated with the TEQ total PCDD/Fs in the maternal breast milk. These results indicated that dioxin delayed the expression of the testosterone level and 17β-HSD activity with growth in the 7-year-old boys. The serum DHEA in the 7-year-old children recovered to the levels of the children in the non-sprayed area.
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Affiliation(s)
- Yuko Oyama
- Division of Health Sciences, Graduate School of Medical Science, Kanazawa University, Japan
| | - Hoang Duc Phuc
- Hanoi Centre for Disease Control, No. 70 Nguyen Chi Thanh, Dong Da, Hanoi, Viet Nam.
| | - Seijiro Honma
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | - Nguyen Thi Phuong Oanh
- Department of Environmental Health, Institute of Preventive Medicine and Public Health, Hanoi Medical University, No1 Ton That Tung Dong Da, Hanoi, Viet Nam
| | - Nguyen Xuan Hung
- Center for Research and Technology Transfer, Viet Nam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Viet Nam
| | | | - Ho Dung Manh
- Faculty of Pharmacy, Lac Hong University, No. 10 Huynh Van Nghe, Buu Long, Bien Hoa, Dong Nai, Viet Nam
| | - Dao Van Tung
- Hai Phong Medical College, No.169 Tran Nguyen Han, Le Chan, Hai Phong, Viet Nam
| | - Dang Duc Nhu
- Ministry of Health, No 138A Giang Vo, Ba Dinh, Hanoi, Viet Nam
| | - Ngo Minh Tan
- Hanoi Medical University, No. 1 Ton That Tung, Dong Da, Hanoi, Viet Nam
| | - Pham Van Thuc
- Hanoi Medical University, No. 1 Ton That Tung, Dong Da, Hanoi, Viet Nam
| | - Nguyen Hung Minh
- Dioxin Laboratory, Centre for Environment Monitoring, Vietnam Environment Administration, Hanoi, Viet Nam
| | - Ngo Van Toan
- Department of Environmental Health, Institute of Preventive Medicine and Public Health, Hanoi Medical University, No1 Ton That Tung Dong Da, Hanoi, Viet Nam
| | - Rie Okamoto
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | - Shizuko Omote
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
| | - Hideaki Nakagawa
- Department of Epidemiology and Public Health, Kanazawa Medical University, Japan
| | - Vo Van Chi
- Phu Cat Health Centre, No.12, 2/3 St., Ngo May, Phu Cat, Binh Dinh, Viet Nam
| | - Teruhiko Kido
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Japan
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Shi LL, Wang MQ, Nakayama SF, Jung CR, Wang YH, Dong JJ, Ma CC, Kido T, Sun XL, Feng H. The association between dioxins and steroid hormones in general adult males: a cross-sectional study in an e-waste region of China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:26511-26519. [PMID: 32367235 DOI: 10.1007/s11356-020-09086-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
As observed among residents in electronic waste (e-waste) recycling areas, dioxins can disrupt the homeostasis of endocrine hormones and the balance of thyroid hormones. Few studies, however, have examined whether e-waste recycling activities influence steroid hormone equilibrium in the general adult male population. This study evaluated the association between steroid hormones and the physical burdens of dioxins in the general adult male population residing in an e-waste region. In September 2017, 74 adult males residing in an e-waste dismantling region were enrolled in the current study. Approximately 10 mL of blood was collected from each adult male, and the serum samples were separated through centrifugation. Then, the levels of dioxin and steroid hormones in the serum of the participants were measured. We treated dioxin levels as categorical variables in the general linear model according to quartiles (25, 50, and 75 percentile). Comparing the findings with a reference group (< 25th percentile), we noted significantly higher dehydroepiandrosterone (DHEA) level in men with low serum polychlorinated dibenzofuran-toxic equivalent (PCDFs-TEQ) level between 3.80 and 6.31 pg/g lipid (1933 vs. 1447 pg/ml) and low polychlorinated dibenzo-p-dioxins and dibenzofurans-TEQ (PCDD/PCDFs-TEQ) between 8.57 and 15.11 pg/g lipid (1996 vs. 1360 pg/ml). Moreover, a significantly higher androstenedione (A-dione) level was found in men whose serum PCDFs-TEQ ≥ 11.34 pg/g lipd (2404 vs. 1848). What's more, there were significantly higher 3β-hydroxysteroid dehydrogenase (3β-HSD) concentrations in low- and high-2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) groups (1.30-1.67 and ≥ 2.64 pg-TEQ/g lipid, respectively with 719 and 807 vs. 496, respectively). Our findings suggest that specific dioxin exposure may disturb normal DHEA, A-dione levels, and enzyme activity in the general adult male population in an e-waste region of China.
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Affiliation(s)
- Li Li Shi
- School of Medicine, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, China
| | - Mei Qin Wang
- Taizhou Luqiao Hospital of Traditional Chinese Medicine, Luqiao, Taizhou, 318050, China
| | - Shoji F Nakayama
- Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 3058506, Japan
| | - Chau-Ren Jung
- Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 3058506, Japan
| | - Yue Hua Wang
- Taizhou Luqiao Hospital of Traditional Chinese Medicine, Luqiao, Taizhou, 318050, China
| | - Jing Jian Dong
- School of Medicine, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, China
| | - Chao Chen Ma
- Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 3058506, Japan
| | - Teruhiko Kido
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 9200942, Japan
| | - Xian Liang Sun
- School of Medicine, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, China.
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 9200942, Japan.
- JSPS International Research Fellow, Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Japan.
| | - Hao Feng
- School of Medicine, Jiaxing University, 118 Jiahang Road, Jiaxing, 314001, China.
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5
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Sun XL, Okamoto R, Kido T, Honma S, Manh HD, Nguyen HV, Anh LT, Phuc HD, Oanh NTP, Maruzeni S, Nakagawa H, Nakayama SF, Nhu DD, Tung DV, Tan NTM, Giang LM. Association of dioxin in maternal breast milk and salivary steroid hormone levels in preschool children: A five-year follow-up study of a Vietnam cohort. CHEMOSPHERE 2020; 241:124899. [PMID: 31586830 DOI: 10.1016/j.chemosphere.2019.124899] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 09/09/2019] [Accepted: 09/17/2019] [Indexed: 06/10/2023]
Abstract
Recent studies have found elevated dioxin levels inside some former US military air bases in Vietnam, known as hotspots. The aim of the present study was to evaluate the association of dioxin exposure and steroid hormone in preschool children in Vietnam. In 2010, 2011, 52 primiparae mother-infant pairs in the hotspot and 52 pairs in a non-exposure region were enrolled. For the final analysis, 26 vs 26 pairs were selected, who participated at all three surveys. Univariable and multivariable linear regressions were used to evaluate associations between hormone and dioxin congeners. Geometric mean total TEQ of PCDD/DFs in the hotspot were significantly higher than in the non-exposure region, 8.7 and 3.4 pg TEQ/g lipid, respectively. In the hotspot, salivary dehydroepiandrosterone (DHEA) was significantly higher in 1-year-old children (Boys = 123 pg/mL, Girls = 120 pg/mL) than in the non-exposure region (Boys = 28 pg/mL, Girls = 27 pg/mL). In contrast, DHEA was significantly lower in 5-year-old children (Boys = 70 pg/mL, Girls = 106 pg/mL) in the hotspot than in the non-exposure region (Boys = 496 pg/mL, Girls = 654 pg/mL). Salivary testosterone was significantly lower in the hotspot (Boys = 1.9 pg/mL, Girls = 1.9 pg/m; Boys = 1.0 pg/mL, Girls = 1.1 pg/mL, respectively) than in the non-exposure region (Boys = 3.7 pg/mL, Girls = 3.8 pg/m; Boys = 5.7 pg/mL, Girls = 7.0 pg/mL, respectively) at 3 years and 5 years of age. Higher levels of highly chlorinated dioxins in breast milk were associated with higher DHEA in 1-year-old and lower DHEA and testosterone levels in 5-year-old children. Our findings indicated that dioxins were associated with changes of DHEA and testosterone levels in preschool Vietnamese children.
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Affiliation(s)
- Xian Liang Sun
- Department of Public Health, School of Medicine, Jiaxing University, 118 Jiahang Road, Jiaxing, 314-001, China; Faculty of Health Sciences, Institute of Medical Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 920-0942, Japan; JSPS International Research Fellow (Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, Japan
| | - Rie Okamoto
- Faculty of Health Sciences, Institute of Medical Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 920-0942, Japan
| | - Teruhiko Kido
- Faculty of Health Sciences, Institute of Medical Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 920-0942, Japan.
| | - Seijiro Honma
- Faculty of Health Sciences, Institute of Medical Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 920-0942, Japan
| | - Ho Dung Manh
- Faculty of Pharmacy, Lac Hong University, No. 10 Huynh Van Nghe, Buu Long, Bien Hoa, Dong Nai, Viet Nam
| | - Hoang Viet Nguyen
- Faculty of Medical Technology, Hanoi Medical University, No. 1 Ton That Tung, Dong Da, Hanoi, Viet Nam
| | - Le Thai Anh
- Faculty of Health Sciences, Institute of Medical Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 920-0942, Japan
| | - Hoang Duc Phuc
- Hanoi Preventive Medicine Centre, No. 70 Nguyen Chi Thanh, Dong Da, Hanoi, Viet Nam
| | - Nguyen Thi Phuong Oanh
- Faculty of Health Sciences, Institute of Medical Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, 920-0942, Japan
| | - Shoko Maruzeni
- Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-9641, Japan
| | - Hideaki Nakagawa
- Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-9641, Japan
| | - Shoji F Nakayama
- Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Japan
| | - Dang Duc Nhu
- Ministry of Health, No 138A Giang 23 Vo, Ba Dinh, Hanoi, Viet Nam
| | - Dao Van Tung
- Viettiep Hospital, No.1 Nha Thuong, Le Chan, Hai Phong, Viet Nam
| | - Ngo Thi Minh Tan
- 10-80 Division, Hanoi Medical University, No.1 Ton That Tung, Dong Da, Hanoi, Viet Nam
| | - Le Minh Giang
- 10-80 Division, Hanoi Medical University, No.1 Ton That Tung, Dong Da, Hanoi, Viet Nam
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El-Rahman MMA, Hassanin AS, El-Shahat MF, Nabil YM. PCDD/PCDFs and PCBs in the irrigation water in Egypt: levels, patterns, and potential sources. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:529. [PMID: 31368020 DOI: 10.1007/s10661-019-7623-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 07/01/2019] [Indexed: 06/10/2023]
Abstract
The contamination levels of PCDD/PCDFs in irrigation water are the most rarely studied throughout the world. The major problem in Egypt is the lack of studies and statistics about these contaminants of POPs in irrigation water. Therefore, this study is the first comprehensive report to elucidate the estimation and sources of PCDD/PCDFs and PCBs in irrigation water from Egypt and rare for worldwide may provide a reference to future studies of POPs compounds in irrigation water of Egypt. A total of 24 irrigated water samples were collected from different irrigation canals which are adjacent to industrial areas from six Egyptian governorates (Bani Swef, El-Giza, El-Sharkeya, El-Menoufeya, El-Gharbeya, and Alexandria). The study shows that irrigation water canals were contaminated with low levels of PCDDs/PCDFs, which were 0.95 pgWHO-TEQ/l, and the total of PCDD/PCDFs and dl-PCBs were 2.06 pgWHO-TEQ/l with contamination ranging between 0.88 to 2.97 pgWHO-TEQ/l while the levels of indicator PCBs were 18.52 ng/l and ranged between 0.39 to 165.6 ng/l. The most predominant dioxins congeners were HpCDD, OCDD, HpCDF, and OCDF while for dl-PCBs were PCB105 and PCB118, and for ndl-PCBs was PCB138. The areas with recent urbanization and industrialization were more contaminated with PCBs than the unindustrialized area. Lightly to moderately chlorinated congeners dominated the PCB profiles. The major sources for these contaminants were fire bricks followed by textile industries closer to the located sampling sites. The detected pattern was found to be similar to the patterns reported in the air by other studies. Although the concentrations of the studied POPs are found to be low in irrigated water, it may be considered as a potential source of soil pollution due to their accumulation process in the agricultural land and may lead to risk on human health by consuming the agricultural products irrigated by contaminated water.
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Affiliation(s)
- M M Abd El-Rahman
- Central Laboratory of Residue Analysis of Pesticides and Heavy Metals in Food (QCAP), Agricultural Research Center (ARC), Ministry of Agriculture and Land Reclamation, 7, Nadi Elsaid Street, Dokki, Giza, P.O.12311, Egypt
| | - Ashraf S Hassanin
- Central Laboratory of Residue Analysis of Pesticides and Heavy Metals in Food (QCAP), Agricultural Research Center (ARC), Ministry of Agriculture and Land Reclamation, 7, Nadi Elsaid Street, Dokki, Giza, P.O.12311, Egypt
| | - M F El-Shahat
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, P.O.11566, Egypt
| | - Y M Nabil
- Central Laboratory of Residue Analysis of Pesticides and Heavy Metals in Food (QCAP), Agricultural Research Center (ARC), Ministry of Agriculture and Land Reclamation, 7, Nadi Elsaid Street, Dokki, Giza, P.O.12311, Egypt.
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7
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Li M, Huo X, Davuljigari CB, Dai Q, Xu X. MicroRNAs and their role in environmental chemical carcinogenesis. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2019; 41:225-247. [PMID: 30171477 DOI: 10.1007/s10653-018-0179-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Accepted: 08/23/2018] [Indexed: 02/05/2023]
Abstract
MicroRNAs (miRNAs) are a class of small, noncoding RNA species that play crucial roles across many biological processes and in the pathogenesis of major diseases, including cancer. Recent studies suggest that the expression of miRNA is altered by certain environmental chemicals, including metals, organic pollutants, cigarette smoke, pesticides and carcinogenic drugs. In addition, extensive studies have indicated the existence and importance of miRNA in different cancers, suggesting that cancer-related miRNAs could serve as potential markers for chemically induced cancers. The altered expression of miRNA was considered to be a vital pathogenic role in xenobiotic-induced cancer development. However, the significance of miRNA in the etiology of cancer and the exact mechanisms by which environmental factors alter miRNA expression remain relatively unexplored. Hence, understanding the interaction of miRNAs with environmental chemicals will provide important information on mechanisms underlying the pathogenesis of chemically induced cancers, and effectively diagnose and treat human cancers resulting from chronic or acute carcinogen exposure. This study presents the current evidence that the miRNA deregulation induced by various chemical carcinogens, different cancers caused by environmental carcinogens and the potentially related genes in the onset or progression of cancer. For each carcinogen, the specifically expressed miRNA may be considered as the early biomarkers of the cancer process. In this review, we also summarize various target genes of the altered miRNA, oncogenes or anti-oncogenes, and the existing evidence regarding the gene regulation mechanisms of cancer caused by environmentally induced miRNA alteration. The future perspective of miRNA may become attractive targets for the diagnosis and treatment of carcinogen-induced cancer.
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Affiliation(s)
- Minghui Li
- Laboratory of Environmental Medicine and Developmental Toxicology, and Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511486, Guangdong, China
| | - Chand Basha Davuljigari
- Laboratory of Environmental Medicine and Developmental Toxicology, and Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Qingyuan Dai
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511486, Guangdong, China
| | - Xijin Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, and Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, 515041, Guangdong, China.
- Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, 515041, Guangdong, China.
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8
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Oanh NTP, Kido T, Honma S, Oyama Y, Anh LT, Phuc HD, Viet NH, Manh HD, Okamoto R, Nakagawa H, Nakayama SF, Nhu DD, Van Tung D, Van Chi V, Minh NH, Van Toan N. Androgen disruption by dioxin exposure in 5-year-old Vietnamese children: Decrease in serum testosterone level. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 640-641:466-474. [PMID: 29864660 DOI: 10.1016/j.scitotenv.2018.05.257] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 04/27/2018] [Accepted: 05/21/2018] [Indexed: 05/09/2023]
Abstract
Dioxins have been suspected to be potential substances causing endocrine disruptions in humans. We are conducting the research in one of three dioxin exposure areas (hotspots) in Vietnam. We previously reported that the salivary dehydroepiandrosterone (DHEA) level decreased in 3-year-old Vietnamese children and that it was significantly inversely correlated with polychlorinated dibenzodioxin/dibenzofuran levels in their mother's breast milk. In this study, we investigated the influence of exposure to dioxin on steroid hormone biosynthesis in the same children when they reached 5 years of age, focusing on androgens. Thirty-five and 50 mother-child pairs from dioxin hotspot and non-sprayed areas, respectively, participated in this study. Maternal breast milk was donated at 4 to 16 weeks postpartum in 2008 to measure dioxin levels by gas chromatography/high-resolution mass spectrometry. Serum was collected from 5-year-old children in 2013. Seven steroid hormones were measured by liquid chromatography/mass spectrometry. Most dioxin congeners in breast milk were 2- to 10-fold higher in the hotspot than in the non-sprayed area. DHEA and testosterone (T) were significantly lower in the hotspot and showed negative correlations with most dioxin congeners. Similar results were observed for the activities of cytochrome P450-17, 20 lyase (CYP17 lyase), and 17β-hydroxysteroid dehydrogenase (HSD). Conversely, the elevated androstenedione (A-dione) level and 3β-HSD activity in children from the hotspot were positively correlated with dioxin levels. Moreover, a positive correlation was shown between T and 17β-HSD. It is possible that dioxin inhibits 17β-HSD activity, leading to a decrease in the T level. Multiple regression analysis indicated that dioxin had a strong association with the DHEA, A-dione, and T levels. In conclusion, the present study suggests that dioxin is associated with low levels of DHEA and T and inhibition of the activity of steroidogenic enzymes such as CYP17 lyase and 17β-HSD in 5-year-old children.
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Affiliation(s)
- Nguyen Thi Phuong Oanh
- Division of Health Science, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Teruhiko Kido
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan.
| | - Seijiro Honma
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Yuko Oyama
- Division of Health Science, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Le Thai Anh
- Division of Health Science, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Hoang Duc Phuc
- Hanoi Preventive Medicine Centre, No. 70 Nguyen Chi Thanh, Dong Da, Hanoi, Viet Nam
| | - Nguyen Hoang Viet
- Faculty of Medical Technology, Ha Noi Medical University, No. 1 Ton That Tung, Dong Da, Hanoi, Viet Nam
| | - Ho Dung Manh
- Faculty of Pharmacy, Lac Hong University, No. 10 Huynh Van Nghe, Buu Long, Bien Hoa, Dong Nai, Viet Nam
| | - Rie Okamoto
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Hideaki Nakagawa
- Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Japan
| | - Shoji F Nakayama
- Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Japan
| | - Dang Duc Nhu
- Ministry of Health, No 138A Giang Vo, Ba Dinh, Hanoi, Viet Nam
| | - Dao Van Tung
- Viettiep Hospital, No.1 Nha Thuong, Le Chan, Hai Phong, Viet Nam
| | - Vo Van Chi
- Phu Cat Health Centre, No.12, 2/3 St., Ngo May, Phu Cat, Binh Dinh, Viet Nam
| | - Nguyen Hung Minh
- Dioxin Laboratory, Centre for Environment Monitoring, Vietnam Environment Administration, No. 556 Nguyen Van Cu, Long Bien, Hanoi, Viet Nam
| | - Ngo Van Toan
- Ha Noi Medical University, No. 1 Ton That Tung, Dong Da, Hanoi, Viet Nam
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9
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Hsu YC, Que DE, Gou YY, Tsou TC, Liu CK, Wang YL, Hou WC, Lin YH, Liu WY, Chao HR, Lee WJ. National surveillance of 2,3,7,8-substituted polychlorinated dibenzo-p-dioxins/furans in soil in Taiwan. CHEMOSPHERE 2018; 203:239-252. [PMID: 29621680 DOI: 10.1016/j.chemosphere.2018.03.191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 06/08/2023]
Abstract
In this study, the polychlorinated dibenzo-p-dioxin/furan (PCDD/F) levels in 381 soil samples coming from different background areas (n = 238) and contaminated areas (n = 143) in Taiwan were investigated from 2011 to 2015 using high resolution gas chromatograph/high resolution mass spectrometry (HRGC/HRMS). The contaminated areas showed higher PCDD/F contamination as compared to the background areas (1230 vs 749 pg/g dry weight (dw)); 14.0 vs 6.25 pg WHO2005-TEQ/g dw). The lowest levels were recorded in the outlying islands (1.28 pg WHO2005-TEQ/g dw). PCDD/F congener distribution profiles in the background and contaminated areas as well as on the islands varied. OCDD was the dominant congener in almost all locations, including the northern background (87.7%) and central contaminated (74.2%) areas. Other dominant species included OCDF and 1,2,3,4,6,7,8-HpCDD. Levels of PCDD/F-TEQs in Taiwanese soils, including the background areas, were higher than in some developing countries and regions with global background levels due to high industrialization except for the contaminated areas. Geographic differences in dioxin-contaminated soils were also shown in this study. Higher soil dioxin-TEQs were observed in locations with high populations and population densities. Despite the limitations, the economic status of Taiwan represented by the annual averaged family income (AAFI) was positively correlated to soil dioxin-TEQs.
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Affiliation(s)
- Yi-Chyun Hsu
- Department of Environmental Engineering, Kun Shan University, Yung-Kang Dist., Tainan City 710, Taiwan
| | - Danielle E Que
- Department of Environmental Engineering, National Cheng Kung University, Tainan City 710, Taiwan
| | - Yan-You Gou
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, College of Engineering, National Pingtung University of Science and Technology, Pingtung County 912, Taiwan
| | - Tsui-Chun Tsou
- National Institute of Environmental Health Science, National Health Research Institutes, Zhunan, Miaoli County 350, Taiwan
| | - Chung-Kun Liu
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, College of Engineering, National Pingtung University of Science and Technology, Pingtung County 912, Taiwan
| | - Yen-Ling Wang
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, College of Engineering, National Pingtung University of Science and Technology, Pingtung County 912, Taiwan
| | - Wen-Che Hou
- Department of Environmental Engineering, National Cheng Kung University, Tainan City 710, Taiwan
| | - Yi-Hsien Lin
- Department of Plant Medicine, College of Agriculture, National Pingtung University of Science and Technology, Pingtung County 912, Taiwan
| | - Wen-Yao Liu
- MWH Americas Inc., Taiwan Branch, Taipei City 100, Taiwan
| | - How-Ran Chao
- Emerging Compounds Research Center, Department of Environmental Science and Engineering, College of Engineering, National Pingtung University of Science and Technology, Pingtung County 912, Taiwan.
| | - Wen-Jhy Lee
- Department of Environmental Engineering, National Cheng Kung University, Tainan City 710, Taiwan
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10
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Anh LT, Kido T, Honma S, Manh HD, Koike I, Oyama Y, Phuc HD, Okamoto R, Nakagawa H, Nakayama SF, Nhu DD, Minh NH, Toan NV, Son LK. A relationship in adrenal androgen levels between mothers and their children from a dioxin-exposed region in Vietnam. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 607-608:32-41. [PMID: 28686893 DOI: 10.1016/j.scitotenv.2017.06.264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 06/29/2017] [Accepted: 06/29/2017] [Indexed: 06/07/2023]
Abstract
Over the past decades, southern Vietnam has been burdened by dioxins from contaminated herbicides sprayed during the Vietnam War. In a previous study, we found that dioxin exposure decreased levels of salivary dehydroepiandrosterone (DHEA), an adrenal androgen, in 3-year-old children. In present study, to assess the relationship between adrenal hormones disruption in lactating mothers and in children, we compared mother-child pairs from dioxin- and nondioxin-contaminated regions. In 2010 and 2011, mother-child pairs from a dioxin hotspot region (n=37) and a non-contaminated region (n=47) were recruited and donated breast milk and serum samples for dioxin and steroid hormones determination. Mothers were 20-30years old and had given birth to their first child between 4 and 16weeks previously. One year later, saliva samples were collected from the children. Dioxin levels in breast milk were determined by gas chromatography/high-resolution mass spectrometry. Salivary DHEA, cortisol in children and androstenedione (A-dione), estradiol, cortisol, and DHEA in maternal serum were analyzed by liquid chromatography/tandem mass spectrometry. Concentrations of dioxin congeners in the hotspot region were 2- to 5-fold higher than in samples from the non-contaminated region. Salivary DHEA levels in children and serum A-dione levels in mothers were significantly higher in the hotspot region; no difference was found in the levels of other hormones. Moreover, there was a significant positive correlation between the elevated hormone levels in mothers and children (r=0.62, p<0.001). Several dioxin congeners exhibited strong significant dose-response relationships with salivary DHEA and serum A-dione levels. Our findings suggest that dioxin disrupts adrenal androgens in mothers and breastfeeding children through the same mechanism.
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Affiliation(s)
- Le Thai Anh
- Division of Health Science, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Teruhiko Kido
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan.
| | - Seijiro Honma
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Ho Dung Manh
- Division of Health Science, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan; Faculty of Pharmacy, Lac Hong University, No. 10 Huynh Van Nghe, Buu Long, Bien Hoa, Dong Nai, Viet Nam
| | - Ikue Koike
- Division of Health Science, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Yuko Oyama
- Division of Health Science, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Hoang Duc Phuc
- Division of Health Science, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Rie Okamoto
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Japan
| | - Hideaki Nakagawa
- Department of Epidemiology and Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Japan
| | - Shoji F Nakayama
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Japan
| | - Dang Duc Nhu
- School of Medicine and Pharmacy, Vietnam National University, Hanoi, Viet Nam
| | - Nguyen Hung Minh
- Dioxin Laboratory, Centre for Environment Monitoring, Vietnam Environment Administration, No. 556 Nguyen Van Cu, Long Bien, Hanoi, Viet Nam
| | - Ngo Van Toan
- Hanoi Medical University, No. 1 Ton That Tung, Dong Da, Hanoi, Viet Nam
| | - Le Ke Son
- Environment Administration, Ministry of Natural Resources and Environment, No. 10 Ton That Thuyet, Cau Giay, Hanoi, Viet Nam
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