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Misawa T, Kagawa T, Ohgami N, Tazaki A, Ohnuma S, Naito H, Chen D, Gu Y, Tamura T, Wakai K, Nishiwaki K, Kato M. Elevated level of urinary tellurium is a potential risk for increase of blood pressure in humans and mice. ENVIRONMENT INTERNATIONAL 2024; 188:108735. [PMID: 38761428 DOI: 10.1016/j.envint.2024.108735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 03/12/2024] [Accepted: 05/08/2024] [Indexed: 05/20/2024]
Abstract
BACKGROUND People worldwide are routinely exposed to tellurium mainly via dietary ingestion. There has been no study to clarify the contribution of tellurium to blood pressure in humans or animals. METHODS In this cross-sectional study conducted in a general population of 2592 residents in Japan, the associations of urinary tellurium levels with blood pressure and prevalence of hypertension were investigated. The potential sources of tellurium were also investigated. An interventional study in mice confirmed the effect of tellurium exposure on blood pressure. RESULTS Linear and logistic regression analyses with consideration of confounders including urinary sodium-potassium ratio showed significant positive associations of urinary tellurium level with prevalence of hypertension and blood pressure. Cereals/beans and vegetables/fruits were determined to be potential dietary sources of tellurium exposure. Intermediary analysis suggested that increased intake of cereals/beans, but not that of vegetables/fruits, is positively associated with the tellurium-mediated risk of hypertension. Correspondingly, the mouse study showed that exposure to a putative human-equivalent dose of tellurium via drinking water increased blood pressure with an elevated level of urinary tellurium. The temporally increased blood pressure was decreased to the normal level by a break of tellurium exposure with a reduced level of urinary tellurium. CONCLUSIONS The interdisciplinary approach provided the first evidence that tellurium exposure is a potential risk for increase of blood pressure. Since the human urinary tellurium level in this study is comparable with the levels in general populations in other Asian and European countries in previous studies, exposure to tellurium may be a latent universal risk for hypertension.
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Affiliation(s)
- Tomoko Misawa
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Department of Anesthesiology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Takumi Kagawa
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Department of Voluntary Body for International Health Care in Universities, Nagoya, Aichi, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Department of Voluntary Body for International Health Care in Universities, Nagoya, Aichi, Japan; Department of Hygiene, Fujita Heath University School of Medicine, Toyoake, Aichi, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Department of Voluntary Body for International Health Care in Universities, Nagoya, Aichi, Japan
| | - Shoko Ohnuma
- Department of Voluntary Body for International Health Care in Universities, Nagoya, Aichi, Japan
| | - Hisao Naito
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Dijie Chen
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Department of Voluntary Body for International Health Care in Universities, Nagoya, Aichi, Japan
| | - Yishuo Gu
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Department of Voluntary Body for International Health Care in Universities, Nagoya, Aichi, Japan
| | - Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Kimitoshi Nishiwaki
- Department of Anesthesiology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Department of Voluntary Body for International Health Care in Universities, Nagoya, Aichi, Japan.
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Kagawa T, Ohgami N, He T, Tazaki A, Ohnuma S, Naito H, Yajima I, Chen D, Deng Y, Tamura T, Kondo T, Wakai K, Kato M. Elevated arsenic level in fasting serum via ingestion of fish meat increased the risk of hypertension in humans and mice. EUROPEAN HEART JOURNAL OPEN 2023; 3:oead074. [PMID: 37671121 PMCID: PMC10475452 DOI: 10.1093/ehjopen/oead074] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/18/2023] [Accepted: 08/01/2023] [Indexed: 09/07/2023]
Abstract
Aims There has been a shortage of human studies to elucidate the association between serum arsenic levels and the prevalence of hypertension. This study multidirectionally investigated associations among arsenic exposure, dietary ingestion, and the risk of hypertension by combined human epidemiological and mouse experimental studies. Methods and results This study focused on the total arsenic level in fasting serum, a biomarker of arsenic exposure. Associations among ingestion frequencies of 54 diet items of Japanese food separated into six categories, total arsenic level in fasting serum, and the prevalence of hypertension were investigated in 2709 general people in Japan. Logistic regression analysis demonstrated a dose-dependent association between serum arsenic level and hypertension and a positive association between the ingestion of fish meat and hypertension. Further analysis showed that the latter association was fully mediated by increased fasting serum arsenic levels in humans. Similarly, oral exposure to the putative human-equivalent dose of arsenic species mixture with the same ratios in a common fish meat in Japan increased systolic blood pressure and arsenic levels in fasting serum in mice. Conclusion This interdisciplinary approach suggests that fish-meat ingestion is a potential risk factor for arsenic-mediated hypertension. Because the increased consumption of fish meat is a recent global trend, health risks of the increased ingestion of arsenic via fish meat should be further investigated.
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Affiliation(s)
- Takumi Kagawa
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Department of Hygiene, School of Medicine, Fujita Health University, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470–1192, Japan
| | - Tingchao He
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Department of Hygiene, School of Medicine, Fujita Health University, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470–1192, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Shoko Ohnuma
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Hisao Naito
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Dijie Chen
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Yuqi Deng
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Department of Hygiene, School of Medicine, Fujita Health University, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470–1192, Japan
| | - Takashi Tamura
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Takaaki Kondo
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
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Tsuchiyama T, Chen D, Alhossain MMA, Tazaki A, Kagawa T, Gu Y, Gao Y, Kurniasari F, Ahsan N, Akhand AA, Kato M. Unexpected associations of long-term and excessive exposure to trivalent chromium with hypertension and glycosuria in male tannery workers. CHEMOSPHERE 2023:139190. [PMID: 37307929 DOI: 10.1016/j.chemosphere.2023.139190] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/04/2023] [Accepted: 06/09/2023] [Indexed: 06/14/2023]
Abstract
Serious health hazards including renal, skin and hearing disorders have been reported in Bangladeshi tannery workers (TWs) who were chronically exposed to a large amount of trivalent chromium [Cr(III)]. However, the effects of Cr(III) exposure on the prevalence of hypertension and the prevalence of glycosuria in TWs remain unknown. Since the Cr level in toenails is an established marker reflecting long-term exposure to Cr(III) in humans, the associations of Cr levels in toenails with the prevalence of hypertension and the prevalence of glycosuria in male tannery and non-tannery office workers (non-TWs) in Bangladesh were investigated in this study. The mean toenail Cr level in non-TWs (0.5 μg/g, n = 49) was comparable to that in the general population reported previously. Mean Cr levels in TWs with a low toenail Cr level (5.7 μg/g, n = 39) and those with a high toenail Cr level (298.8 μg/g, n = 61) were >10-fold and >500-fold higher, respectively, than that in non-TWs. Our univariate and multivariate analyses indicated that the prevalence of hypertension and the prevalence of glycosuria in TWs with a high toenail Cr level, but not in TWs with a low toenail Cr level, were significantly lower than those in non-TWs. This study showed for the first time that long-term and excessive exposure to Cr(III) that is more than >500-fold but not >10-fold higher than the usual exposure level could decrease the prevalence of hypertension and the prevalence of glycosuria in TWs. Thus, this study revealed unexpected effects of exposure to Cr(III) on health.
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Affiliation(s)
- Tomoyuki Tsuchiyama
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Dijie Chen
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - M M Aeorangajeb Alhossain
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Directorate General of Health Services, Ministry of Health and Family Welfare, Government of the People's Republic of Bangladesh, Mohakhali, Dhaka, 1212, Bangladesh
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Takumi Kagawa
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Yishuo Gu
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Yanjun Gao
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Fitri Kurniasari
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Nazmul Ahsan
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Anwarul A Akhand
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan.
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Labarthe S, Dubourg K, Dimet J, Bauduer F. Assessment of barium diffusion from therapeutic mud wrapped in micro-perforated polyethylene bags towards the human organism. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2023; 67:887-895. [PMID: 37016191 DOI: 10.1007/s00484-023-02463-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 03/13/2023] [Accepted: 03/18/2023] [Indexed: 05/09/2023]
Abstract
Barium is present within the clay-derived therapeutic mud packs deposed on the patient's skin for treating some rheumatologic conditions. We studied in twenty-four young healthy volunteers the diffusion of Ba from mud wrapped in micro-perforated polyethylene bags and soaked in mineral water. No significant systematic increase in plasma or urine Ba levels was evidenced when comparing pre- and post-treatment samples using inductively-coupled plasma mass spectrometry. These levels were markedly inferior to the recommended thresholds in nearly all the participants. Noticeably variability in blood and especially urine Ba concentrations was large and mainly explained by environmental exposure (alimentation). Interestingly, we evidenced an intense Ba accumulation within the therapeutic mud at the end of the regimen. Because we chose a clay with one of the highest Ba content available in France for medical therapy and participants with an optimal transcutaneous diffusion capacity (young individuals with low-fat mass), we conclude unambiguously that there is no risk of Ba overexposure in patients receiving pelotherapy according to the procedure used in French medical spas.
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Affiliation(s)
- Sébastien Labarthe
- Institut du Thermalisme, Université de Bordeaux, Collège des sciences de la santé, 8 rue Sainte Ursule, 40100, Dax, France
| | - Karine Dubourg
- Institut du Thermalisme, Université de Bordeaux, Collège des sciences de la santé, 8 rue Sainte Ursule, 40100, Dax, France
| | - Jérôme Dimet
- Centre de Recherche Clinique, Groupement Hospitalier Territorial des Landes, 40000, Mont-de-Marsan, France
| | - Frédéric Bauduer
- Institut du Thermalisme, Université de Bordeaux, Collège des sciences de la santé, 8 rue Sainte Ursule, 40100, Dax, France.
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Yajima I, Tazaki A, Ohgami N, Kato M. Calcitriol inhibits arsenic-promoted tumorigenesis through regulation of arsenic-uptake in a human keratinocyte cell line. Am J Cancer Res 2022; 12:5019-5028. [PMID: 36504884 PMCID: PMC9729888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/09/2022] [Indexed: 12/15/2022] Open
Abstract
Chronic arsenic exposure from drinking water causes a variety of diseases and it is now recognized that at least 140 million people in 50 countries have been drinking water containing arsenic at levels above the WHO provisional guideline value of 10 μg/L. Long-term exposure to arsenic is associated with various types of cancers in humans including skin cancers. However, there is limited information on key molecules regulating arsenic-promoted carcinogenesis, and methods for the prevention and therapy of arsenic-promoted carcinogenesis have not yet been fully developed. Our in vitro study in human nontumorigenic HaCaT skin keratinocytes showed that calcitriol (activated vitamin D3, 1,25(OH)2D3) inhibited arsenic-mediated anchorage-independent growth with downregulations of cancer-related activation of MEK, ERK1/2 and AKT and activity of cell cycle. Moreover, calcitriol significantly repressed arsenic uptake in HaCaT cells with inhibition of expressions of aquaporin genes (AQP7, 9 and 10) which were modified by arsenic exposure. VDR, a vitamin D receptor, expression was significantly increased by arsenic exposure whereas calcitriol had no effect on its expression. These results suggest that treatment of calcitriol inhibits arsenic uptake via suppressions of aquaglyceroporin gene expressions resulting in inhibition of arsenic-promoted tumorigenesis in keratinocytes.
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Affiliation(s)
- Ichiro Yajima
- Unit of Molecular and Cellular Toxicology, Department of Bioscience and Engineering, College of Systems Engineering and Science, Shibaura Institute of TechnologyFukasaku 307, Minuma-ku, Saitama 337-8570, Japan,Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan,Voluntary Body for International Health Care in Universities65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan,Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu UniversityKasugai, Aichi 487-8501, Japan,Voluntary Body for International Health Care in Universities65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan,Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu UniversityKasugai, Aichi 487-8501, Japan,Voluntary Body for International Health Care in Universities65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
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Gu Y, Ohgami N, Al Hossain MMA, Tazaki A, Tsuchiyama T, He T, Aoki M, Ahsan N, Akhand AA, Kato M. Decreased hearing levels at frequencies for understanding speech in tannery workers exposed to a high level of trivalent chromium in Bangladesh. CHEMOSPHERE 2022; 306:135571. [PMID: 35798151 DOI: 10.1016/j.chemosphere.2022.135571] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/21/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Hexavalent chromium [Cr(VI)], which has a strong corrosive effect, has been reported to cause perforation of the eardrum. Trivalent chromium [Cr(III)] also has a weak corrosive effect. However, there has been no study on the effects of exposure to Cr, either Cr(VI) or Cr(III), on hearing levels in animals or humans. In this study, the effect of Cr(III) exposure on hearing levels was determined in a human study. Then the reproducibility of the results obtained in the human study and the etiology were investigated in an animal study. The mean levels of total chromium (t-Cr) in hair and toenails from 100 Bangladeshi tannery workers were >20-fold and >360-fold higher, respectively, than those in hair and toenails from 49 Bangladeshi non-tannery workers (office workers). Multivariate analysis revealed decreases of hearing levels (DHLs) at 1 k and 4 k Hz, frequencies that are crucial for understanding language, but not at 8 k and 12 k Hz, in the tannery workers. Since >99.99% of t-Cr in the wastewater that the workers were in direct contact with in the tanneries was Cr(III), the epidemiological results suggest Cr(III)-mediated DHLs in the tannery workers. The results of animal experiments in this study further showed that treatment with eardrops but not intraperitoneal injection with the same amount of Cr(III) that tannery workers might be exposed to resulted in DHL with a damaged eardrum in mice. Previous studies suggested that Cr(III) can directly reach the eardrums of tannery workers via droplets in the air. Cr(III) could also reach the eardrum via picking an ear canal with a finger contaminated with tannery wastewater including Cr(III). Taken together, the results of both human and animal studies suggest the risk of DHLs caused by damage of the eardrum through external exposure to Cr(III) via the ear canal.
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Affiliation(s)
- Yishuo Gu
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan.
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan.
| | - M M Aeorangajeb Al Hossain
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Directorate General of Health Services, Ministry of Health and Family Welfare, Government of the People's Republic of Bangladesh, Mohakhali, Dhaka, 1212, Bangladesh.
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan.
| | - Tomoyuki Tsuchiyama
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan.
| | - Tingchao He
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan.
| | - Masayo Aoki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan.
| | - Nazmul Ahsan
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh.
| | - Anwarul Azim Akhand
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh.
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan.
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Yuan T, Hashimoto K, Tazaki A, Hasegawa M, Kurniasari F, Ohta C, Aoki M, Ohgami N, Kato M. Potential application of a hydrotalcite-like compound for reduction of toxicity to aquatic organisms via rapid and efficient removal of hydrogen sulfide. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 321:115861. [PMID: 36050136 DOI: 10.1016/j.jenvman.2022.115861] [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: 03/24/2022] [Revised: 07/20/2022] [Accepted: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Hydrogen sulfide (H2S) is known to have wide ranging toxicities not only as a gas but also as dissolved forms in aquatic environments. The diversity of aquatic organisms can be severely affected by hydrogen sulfide at very low concentrations, indicating the urgent necessity to develop an efficient method for removal of hydrogen sulfide in water. In this study, the removal capacity for hydrogen sulfide of our originally developed hydrotalcite-like compound composed of magnesium and iron (MF-HT) was investigated and its potential application for reduction of toxicity to aquatic organisms was evaluated. The MF-HT experimentally showed a high adsorption capacity of 146.5 mg/g with a fast adsorption equilibrium time of 45 min, both of which are top-class compared with those of other adsorbents previously reported. In fact, removal of hydrogen sulfide (1.2-152.5 mg/L) at an average rate of >97.6% was achieved in groundwater samples (n = 16) by the MF-HT within 60 min. The toxicities of groundwater, indicated by inhibition rate for microalgae (primary producers) and immobilization rate for crustaceans (secondary consumers), were reduced by 96.1% and 82.5% in 2-fold and 4-fold diluted groundwater, respectively, after treatment with the MF-HT for 60 min. These results indicate that MF-HT has an excellent safety record for aquatic organisms. After clarifying the adsorption mechanism, excellent reusability of MF-HT was also confirmed after regeneration using 1 M Na2CO3 solution. Considering the efficacy, speed, safety and cost of MF-HT, it could be a novel promising material for solving the problem of hydrogen sulfide pollution in the hydrosphere.
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Affiliation(s)
- Tian Yuan
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - Kazunori Hashimoto
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Department of Molecular Biology, Faculty of Pharmacy, Meijo University, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Masahiro Hasegawa
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Fitri Kurniasari
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Chihiro Ohta
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Masayo Aoki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan.
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Kurniasari F, Tazaki A, Hashimoto K, Yuan T, Al Hossain MMA, Akhand AA, Ahsan N, Ohnuma S, Kato M. Redistribution of potentially toxic elements in the hydrosphere after the relocation of a group of tanneries. CHEMOSPHERE 2022; 303:135098. [PMID: 35643165 DOI: 10.1016/j.chemosphere.2022.135098] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 05/16/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
Simultaneous relocation of a group of pollutant sources in a heavily polluted area is a rare event. Such a relocation has been implemented in Hazaribagh, a tannery built-up area with heavy pollution, in Bangladesh. This provides a valuable opportunity to compare the changes in environmental conditions associated with the relocation of multiple putative sources. Our environmental monitoring for a period of 6 years at the stationary areas centered on Hazaribagh geographically revealed trivalent [Cr(III)], hexavalent [Cr(VI)] chromium, lead, iron, and manganese as tannery-related elements after the legal deadline for tannery relocation. The median Cr(III) level in canal water, into which wastewater from tanneries was directly discharged, after the relocation was 97% lower of that before the relocation, indicating a beneficial effect of the relocation. In contrast, the median Cr(VI) level in water samples just after the relocation and 2 years after the relocation were approximately 5-fold and 30-fold higher, respectively, than those before the relocation. These results indicate not only a harmful effect of the relocation but also the possibility of conversion from Cr(III) to Cr(VI) in nature. Although the health hazard indexes considering all of the tannery-related elements in all of the canal water samples before the relocation exceeded the safety thresholds, the percentages of samples in which the indexes exceeded their safety thresholds after the relocation decreased by 32.5%-45.0%. Treatment with our patented hydrotalcite-like compound consisting of magnesium and iron (MF-HT) resulted in decreases in the health hazard indexes in all of the water samples in which the indexes exceeded their safety thresholds to levels lower than their thresholds. Thus, this study shows the double-edged effects associated with the relocation and a potential solution.
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Affiliation(s)
- Fitri Kurniasari
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Kazunori Hashimoto
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Tian Yuan
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - M M Aeorangajeb Al Hossain
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Directorate General of Health Services, Ministry of Health and Family Welfare, Government of the People's Republic of Bangladesh, Mohakhali, Dhaka, 1212, Bangladesh
| | - Anwarul Azim Akhand
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Nazmul Ahsan
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Shoko Ohnuma
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan.
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9
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Tindula G, Mukherjee SK, Ekramullah SM, Arman DM, Biswas SK, Islam J, Obrycki JF, Christiani DC, Liang L, Warf BC, Mazumdar M. Parental metal exposures as potential risk factors for spina bifida in Bangladesh. ENVIRONMENT INTERNATIONAL 2021; 157:106800. [PMID: 34358915 PMCID: PMC9008873 DOI: 10.1016/j.envint.2021.106800] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 07/08/2021] [Accepted: 07/26/2021] [Indexed: 06/11/2023]
Abstract
BACKGROUND Neural tube defects are a pressing public health concern despite advances in prevention from folic acid-based strategies. Numerous chemicals, in particular arsenic, have been associated with neural tube defects in animal models and could influence risk in humans. OBJECTIVES We investigated the relationship between parental exposure to arsenic and 17 metals and risk of neural tube defects (myelomeningocele and meningocele) in a case control study in Bangladesh. METHODS Exposure assessment included analysis of maternal and paternal toenail samples using inductively coupled plasma mass spectrometry (ICP-MS). A total of 278 participants (155 cases and 123 controls) with data collected from 2016 to 2020 were included in the analysis. RESULTS In the paternal models, a one-unit increase in the natural logarithm of paternal toenail arsenic was associated with a 74% (odds ratio: 1.74, 95% confidence interval: 1.26-2.42) greater odds of having a child with spina bifida, after adjusting for relevant covariates. Additionally, paternal exposure to aluminum, cobalt, chromium, iron, selenium, and vanadium was associated with increased odds of having a child with spina bifida in the adjusted models. In the maternal models, a one-unit increase in the natural logarithm of maternal toenail selenium and zinc levels was related to a 382% greater (odds ratio: 4.82, 95% confidence interval: 1.32-17.60) and 89% lower (odds ratio: 0.11, 95% confidence interval: 0.03-0.42) odds of having a child with spina bifida in the adjusted models, respectively. Results did not suggest an interaction between parental toenail metals and maternal serum folate. DISCUSSION Parental toenail levels of numerous metals were associated with increased risk of spina bifida in Bangladeshi infants. Paternal arsenic exposure was positively associated with neural tube defects in children and is of particular concern given the widespread arsenic poisoning of groundwater resources in Bangladesh and the lack of nutritional interventions aimed to mitigate paternal arsenic exposure. The findings add to the growing body of literature of the impact of metals, especially paternal environmental factors, on child health.
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Affiliation(s)
- Gwen Tindula
- Department of Neurology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, United States; Department of Neurology, Harvard Medical School, 25 Shattuck St, Boston, MA, United States
| | - Sudipta Kumer Mukherjee
- Department of Paediatric Neurosurgery, National Institute of Neurosciences and Hospital (NINS), Sher-e-Bangla Nagar, Agargoan, Dhaka 1207, Bangladesh
| | - Sheikh Muhammad Ekramullah
- Department of Paediatric Neurosurgery, National Institute of Neurosciences and Hospital (NINS), Sher-e-Bangla Nagar, Agargoan, Dhaka 1207, Bangladesh
| | - D M Arman
- Department of Paediatric Neurosurgery, National Institute of Neurosciences and Hospital (NINS), Sher-e-Bangla Nagar, Agargoan, Dhaka 1207, Bangladesh
| | - Subrata Kumar Biswas
- Department of Biochemistry and Molecular Biology, Bangabandhu Sheikh Mujib Medical University, Shahbag, Dhaka 1000, Bangladesh
| | - Joynul Islam
- Department of Clinical Neurosurgery, National Institute of Neurosciences and Hospital (NINS), Sher-e-Bangla Nagar, Agargoan, Dhaka 1207, Bangladesh
| | - John F Obrycki
- Department of Neurology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, United States; Department of Neurology, Harvard Medical School, 25 Shattuck St, Boston, MA, United States
| | - David C Christiani
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Boston, MA, United States
| | - Liming Liang
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Boston, MA, United States; Department of Biostatistics, Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Boston, MA, United States
| | - Benjamin C Warf
- Department of Neurosurgery, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, United States
| | - Maitreyi Mazumdar
- Department of Neurology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, United States; Department of Neurology, Harvard Medical School, 25 Shattuck St, Boston, MA, United States; Department of Environmental Health, Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Boston, MA, United States.
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10
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Huang H, Wei L, Chen X, Zhang R, Su L, Rahman M, Golam Mostofa M, Qamruzzaman Q, Zhao Y, Yu H, Wei Y, Christiani DC, Chen F. Cord serum elementomics profiling of 56 elements depicts risk of preterm birth: Evidence from a prospective birth cohort in rural Bangladesh. ENVIRONMENT INTERNATIONAL 2021; 156:106731. [PMID: 34197971 DOI: 10.1016/j.envint.2021.106731] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/28/2021] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
Maternal exposure to some individual rare earth elements and trace elements is associated with preterm birth, but few elements have been studied and little is known about the potential effect of simultaneous exposure to multiple elements. We examined individual and mixture effects of elements on preterm birth among 745 pregnant women in a prospective birth cohort in Bangladesh (2008-2011). We measured 56 elements in umbilical cord blood collected during delivery using inductively coupled plasma-mass spectrometry. Using elastic net (ENET) regularization and multivariate logistic regression, we examined independent associations between element concentrations and preterm birth. Bayesian kernel machine regression identified mixture effects of elements most critical to preterm birth, accounting for correlated exposure and interaction. ENET identified titanium (Ti), arsenic (As), and barium (Ba) as the most important predictors of shortened gestational age and preterm birth. In adjusted models, cord blood Ti (OR = 2.52; 95% CI: 1.08-5.93; P = 0.033), As (odds ratio (OR) = 1.34; 95% CI: 1.04-1.73; P = 0.023), and Ba (OR = 1.18; 95% CI: 1.02-1.38; P = 0.029) were significantly associated with preterm birth. Bayesian kernel machine regression suggested an interaction effect between As and Ba. Further, we constructed an element risk score (ERS) using estimated weights from a multivariate regression model for Ti, As, and Ba and regressed preterm birth by this score (OR = 2.72, 95% CI: 1.57-4.69; P = 3.35 × 10-4). Additionally, we observed a significant modification effect of child marriage on ERS, which means marriage before the age of 18 (Pinteraction = 0.0438). This study identified element exposures profiles in cord blood and constructed metal risk score that are jointly associated with the risk of preterm birth. Ti, As, and Ba exposure may adversely affect birth outcomes as well as child marriage may be a modifiable factor potentially affecting environmental element exposure and preterm birth.
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Affiliation(s)
- Hui Huang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Liangmin Wei
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xin Chen
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Ruyang Zhang
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China; China International Cooperation Center for Environment and Human Health, Center of Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Li Su
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | | | | | | | - Yang Zhao
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Hao Yu
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yongyue Wei
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China; China International Cooperation Center for Environment and Human Health, Center of Global Health, Nanjing Medical University, Nanjing 211166, China.
| | - David C Christiani
- China International Cooperation Center for Environment and Human Health, Center of Global Health, Nanjing Medical University, Nanjing 211166, China; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Feng Chen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China; China International Cooperation Center for Environment and Human Health, Center of Global Health, Nanjing Medical University, Nanjing 211166, China
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11
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Yuan T, Tazaki A, Hashimoto K, Al Hossain MMA, Kurniasari F, Ohgami N, Aoki M, Ahsan N, Akhand AA, Kato M. Development of an efficient remediation system with a low cost after identification of water pollutants including phenolic compounds in a tannery built-up area in Bangladesh. CHEMOSPHERE 2021; 280:130959. [PMID: 34162114 DOI: 10.1016/j.chemosphere.2021.130959] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/18/2021] [Accepted: 05/17/2021] [Indexed: 06/13/2023]
Abstract
Water pollution caused by tannery wastewater is an important issue in developing countries. Most studies have focused on inorganic chemicals represented by chromium as a tannery-related main pollutant. This is the first study in which pollution of water by tannery-related organic chemicals was assessed by a combination of qualitative and quantitative analyses. Our quantitative analysis showed that the maximum concentration of total phenolic compounds (phenols), consisting of phenol, bisphenol F, p-cresol and chlorocresol, in canal water in a tannery built-up area in Bangladesh was >67-fold higher than the Environmental, Health and Safety (EHS) guideline value. Mapping of our results indicated tanneries as the sources of phenols pollution. Our original depurative, a hydrotalcite-like compound consisting of magnesium and iron (MF-HT), could adsorb all kinds of phenols and exhibited the highest phenol adsorption ability (115.8 mg/g) among reported hydrotalcite-like compounds. The levels of phenols in canal water samples were reduced to levels below the guideline value by using MF-HT with assistance of a photocatalytic reaction. Moreover, the mean level of chromium (112.2 mg/L) in canal water samples was decreased by 99.7% by using the depurative. Thus, the depurative has the potential for solving the problem of tannery-related water pollution by phenols and chromium.
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Affiliation(s)
- Tian Yuan
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Kazunori Hashimoto
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - M M Aeorangajeb Al Hossain
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Directorate General of Health Services, Ministry of Health and Family Welfare, Government of the People's Republic of Bangladesh, Mohakhali, Dhaka, 1212, Bangladesh
| | - Fitri Kurniasari
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan
| | - Masayo Aoki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Nazmul Ahsan
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Anwarul Azim Akhand
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan.
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12
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Ghaffari HR, Kamari Z, Ranaei V, Pilevar Z, Akbari M, Moridi M, Khedher KM, Thai VN, Fakhri Y, Mousavi Khaneghah A. The concentration of potentially hazardous elements (PHEs) in drinking water and non-carcinogenic risk assessment: A case study in Bandar Abbas, Iran. ENVIRONMENTAL RESEARCH 2021; 201:111567. [PMID: 34171377 DOI: 10.1016/j.envres.2021.111567] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 06/13/2021] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
In this study, concentration of potentially hazardous elements (PHEs) including slice (Si), strontium (Sr), aluminum (Al), Fluoride (F), Iron (Fe), Zinc (Zn), Barium (Ba), Lead (Pb), Lithium (Li), Vanadium (V), selenium (Se), Chrome (Cr), Arsenic (As) and Uranium (U) in tap drinking water (n = 40) and filtration plant (n = 22) in Bandar Abbas city between March to July 2020 were analyzed. Analysis of PHEs ions was conducted by inductively coupled plasma mass spectrometry (ICP-MS). Also, concentration of F was measured by SPADNS Method. The non-carcinogenic risk in the exposed population (adult and children) were estimated. Concentration of PHEs between tap drinking water and filtration plant was compared using T statistical test. In addition, association among PHEs in tap drinking water and water filtration plant using Pearson correlation coefficient. The rank order of PHEs in tap drinking water was Si (6356.25 μg/l) > Sr (3980 μg/l) > Al (115.42 μg/l) > Fe (30.00 μg/l) > Zn (14.59 μg/l) > Ba (13.91 μg/l) > Pb (13.01 μg/l) > Li (11.60 μg/l) > V (4.43 μg/l) > Se (4.17 μg/l) > Cr (2.51 μg/l) > As (2.00 μg/l) > U (0.65 μg/l) > F (0.31 μg/l) and also in filtration plant was Si (1825.00 μg/l) > Sr (539.00 μg/l) > Fe (45.00 μg/l) > Al (26.00 μg/l) > Zn (8.08 μg/l) > Ba (2.24 μg/l) > Se (1.36 μg/l)> Pb(1.28 μg/l) > Li (1.26 μg/l) > Cr (1.17 μg/l) > F (0.66 μg/l) > V (0.61 μg/l) > As (LOD < ) ~ U (LOD <). The most of PHEs in tap drinking water was considerable different with filtration plant (p value < 0.05) therefore the chemical quality of tap drinking water should be more attention. The results of non-carcinogenic risk assessment revealed that TTHQ in the adults and children due to drinking tap water content of PHEs was 2.59E-3 and 6.05E-3 and filtration plant was 8.88E-04 and 2.07E-03, respectively. Therefore, TTHQ in adults and children was lower than 1; therefore, consumers are in the safe range due to drinking tap water and water filtration plant content of PHEs.
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Affiliation(s)
- Hamid Reza Ghaffari
- Food Health Research Center, Department of Environmental Health Engineering, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Zohreh Kamari
- Food Health Research Center, Department of Environmental Health Engineering, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Vahid Ranaei
- Social Determinants in Health Promotion Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Zahra Pilevar
- Department of Food Sciences and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mitra Akbari
- School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Mashallah Moridi
- Food Health Research Center, Department of Environmental Health Engineering, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Khaled Mohamed Khedher
- Department of Civil Engineering, College of Engineering, King Khalid University, Abha, 61421, Saudi Arabia; Department of Civil Engineering, High Institute of Technological Studies, Mrezgua University Campus, Nabeul, 8000, Tunisia
| | - Van Nam Thai
- Ho Chi Minh City University of Technology (HUTECH), 475A, Dien Bien Phu, Ward 25, Binh Thanh District, Ho Chi Minh City, Viet Nam
| | - Yadolah Fakhri
- Food Health Research Center, Department of Environmental Health Engineering, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
| | - Amin Mousavi Khaneghah
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80. Caixa Postal: 6121, CEP: 13083-862, Campinas, São Paulo, Brazil
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13
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Signes-Pastor AJ, Gutiérrez-González E, García-Villarino M, Rodríguez-Cabrera FD, López-Moreno JJ, Varea-Jiménez E, Pastor-Barriuso R, Pollán M, Navas-Acien A, Pérez-Gómez B, Karagas MR. Toenails as a biomarker of exposure to arsenic: A review. ENVIRONMENTAL RESEARCH 2021; 195:110286. [PMID: 33075355 PMCID: PMC7987585 DOI: 10.1016/j.envres.2020.110286] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/26/2020] [Accepted: 09/27/2020] [Indexed: 05/04/2023]
Abstract
This systematic review summarizes the current evidence related to the reliability of toenail total arsenic concentrations (thereafter "arsenic") as a biomarker of long-term exposure. Specifically, we reviewed literature on consistency of repeated measures over time, association with other biomarkers and metal concentrations, factors influencing concentrations, and associations with health effects. We identified 129 papers containing quantitative original data on arsenic in toenail samples covering populations from 29 different countries. We observed geographic differences in toenail arsenic concentrations, with highest median or mean concentrations in Asian countries. Arsenic-contaminated drinking water, occupational exposure or living in specific industrial areas were associated with an increased toenail arsenic content. The effects of other potential determinants and sources of arsenic exposure including diet, gender and age on the concentrations in toenails need further investigations. Toenail arsenic was correlated with the concentrations in hair and fingernails, and with urine arsenic mainly among highly exposed populations with a toenail mean or median ≥1 μg/g. Overall, there is a growing body of evidence suggesting that arsenic content from a single toenail sample may reflect long-term internal dose-exposure. Toenail arsenic can serve as a reliable measure of toxic inorganic arsenic exposure in chronic disease research, particularly promising for cancer and cardiovascular conditions.
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Affiliation(s)
- Antonio J Signes-Pastor
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, 1 Medical Center Dr, Williamson Translational Research Bldg, Lebanon NH, 03756, USA.
| | - Enrique Gutiérrez-González
- Spanish Agency of Food Safety and Nutrition, Ministry of Consumer Affairs, Alcalá, 56, 28014, Madrid, Spain; Consortium for Biomedical Research in Epidemiology & Public Health (CIBER en Epidemiología y Salud Pública - CIBERESP), Monforte de Lemos 5, 28029, Madrid, Spain
| | - Miguel García-Villarino
- Consortium for Biomedical Research in Epidemiology & Public Health (CIBER en Epidemiología y Salud Pública - CIBERESP), Monforte de Lemos 5, 28029, Madrid, Spain; Unit of Molecular Cancer Epidemiology, University Institute of Oncology of the Principality of Asturias (IUOPA) - Department of Medicine, University of Oviedo, Julian Clavería Street s/n, 33006, Oviedo, Asturias, Spain
| | - Francisco D Rodríguez-Cabrera
- Public Health Teaching Unit, National School of Public Health, Carlos III Institute of Health, Monforte de Lemos 5, 28029. Madrid, Spain
| | - Jorge J López-Moreno
- Public Health Teaching Unit, National School of Public Health, Carlos III Institute of Health, Monforte de Lemos 5, 28029. Madrid, Spain
| | - Elena Varea-Jiménez
- Department of Epidemiology of Chronic Diseases, National Centre for Epidemiology, Carlos III Institute of Health, Monforte de Lemos 5, 28029, Madrid, Spain
| | - Roberto Pastor-Barriuso
- Consortium for Biomedical Research in Epidemiology & Public Health (CIBER en Epidemiología y Salud Pública - CIBERESP), Monforte de Lemos 5, 28029, Madrid, Spain; Department of Epidemiology of Chronic Diseases, National Centre for Epidemiology, Carlos III Institute of Health, Monforte de Lemos 5, 28029, Madrid, Spain
| | - Marina Pollán
- Consortium for Biomedical Research in Epidemiology & Public Health (CIBER en Epidemiología y Salud Pública - CIBERESP), Monforte de Lemos 5, 28029, Madrid, Spain; Department of Epidemiology of Chronic Diseases, National Centre for Epidemiology, Carlos III Institute of Health, Monforte de Lemos 5, 28029, Madrid, Spain
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Beatriz Pérez-Gómez
- Consortium for Biomedical Research in Epidemiology & Public Health (CIBER en Epidemiología y Salud Pública - CIBERESP), Monforte de Lemos 5, 28029, Madrid, Spain; Public Health Teaching Unit, National School of Public Health, Carlos III Institute of Health, Monforte de Lemos 5, 28029. Madrid, Spain; Department of Epidemiology of Chronic Diseases, National Centre for Epidemiology, Carlos III Institute of Health, Monforte de Lemos 5, 28029, Madrid, Spain
| | - Margaret R Karagas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, 1 Medical Center Dr, Williamson Translational Research Bldg, Lebanon NH, 03756, USA
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14
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Sudo M, Hashimoto K, Yoshinaga M, Azimi MD, Fayaz SH, Hamajima N, Kondo-Ida L, Yanagisawa K, Kato M. Lithium promotes malignant transformation of nontumorigenic cells in vitro. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 744:140830. [PMID: 32721671 DOI: 10.1016/j.scitotenv.2020.140830] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/11/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
Because of the deficiency of water caused by the regional disparities of rainfall due to global warming, attention has been given to the use of well water as drinking water in developing countries. Our fieldwork study in Afghanistan showed that there was a maximum value of 3371 μg/L and an average value of 233 μg/L of lithium in well drinking water. Since the level of lithium in well water is higher than the levels in other countries, we investigated the health risk of lithium. After confirming no influence of ≤1000 μM lithium on cell viability, we found that lithium at concentrations of 100 and 500 μM promoted anchorage-independent growth of human immortalized keratinocytes (HaCaT) and lung epithelial cells (BEAS-2B) but not that of human keratinocytic carcinoma cells (HSC-5) or lung epithelial carcinoma cells (A549). The same concentrations of lithium also promoted phosphorylation of c-SRC and MEK/ERK but not that of AKT in the keratinocytes. Inhibitors of c-SRC (PP2) and MEK (PD98059) suppressed the lithium-induced increase in anchorage-independent growth of the keratinocytes. Our results suggested that lithium promoted transformation of nontumorigenic cells rather than progression of tumorigenic cells with preferential activation of the c-SRC/MEK/ERK pathway. Since previous pharmacokinetics studies indicated that it is possible for the serum level of lithium to reach 100 μM by drinking 2.5 L of water containing 3371 μg/L of lithium per day, the high level of lithium contamination in well drinking water in Kabul might be a potential oncogenic risk in humans.
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Affiliation(s)
- Makoto Sudo
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazunori Hashimoto
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Voluntary Body, International Health Care in Universities, Nagoya, Japan
| | - Masafumi Yoshinaga
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mohammad Daud Azimi
- Department of Human Resources, Ministry of Public Health, Kabul, Afghanistan
| | - Said Hafizullah Fayaz
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Administrative Office of the President, Deputy Public Relations and Outreach, Kabul, Afghanistan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Lisa Kondo-Ida
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Molecular and Cancer Medicine, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Kiyoshi Yanagisawa
- Department of Molecular and Cancer Medicine, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Voluntary Body, International Health Care in Universities, Nagoya, Japan; Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan.
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15
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Xu H, Hashimoto K, Maeda M, Azimi MD, Fayaz SH, Chen W, Hamajima N, Kato M. High levels of boron promote anchorage-independent growth of nontumorigenic cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115094. [PMID: 32659568 DOI: 10.1016/j.envpol.2020.115094] [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: 03/03/2020] [Revised: 06/22/2020] [Accepted: 06/22/2020] [Indexed: 05/14/2023]
Abstract
WHO has presented a health-based guideline value for boron in drinking water. That fact indicates that a high level of boron is toxic for humans. However, there is no direct evidence of boron-mediated malignant transformation. In this study, human lung epithelial nontumorigenic BEAS-2B cells and tumorigenic A549 cells were used to investigate the tumorigenic toxicity of boron in vitro. Anchorage-independent growth, a hallmark of malignant transformation, was increased by boron at concentrations of 50, 250 and 500 μM in BEAS-2B cells, though the same concentrations of boron had no influence on anchorage-independent growth of A549 cells. Moreover, boron at concentrations of 250 and 500 μM activated the c-SRC/PI3K/AKT pathway of BEAS-2B cells. The results of our in vitro study suggest that exposure to high levels of boron promotes transforming activity of nontumorigenic cells.
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Affiliation(s)
- Huadong Xu
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Kazunori Hashimoto
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Masao Maeda
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | | | - Said Hafizullah Fayaz
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Administrative Office of the President, Deputy Public Relations and Outreach, Kabul, Afghanistan
| | - Wei Chen
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan; Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Matsumoto-cho, Kasugai-shi, Aichi, Japan.
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16
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Tsuchiyama T, Tazaki A, Al Hossain MA, Yajima I, Ahsan N, Akhand AA, Hashimoto K, Ohgami N, Kato M. Increased levels of renal damage biomarkers caused by excess exposure to trivalent chromium in workers in tanneries. ENVIRONMENTAL RESEARCH 2020; 188:109770. [PMID: 32544723 DOI: 10.1016/j.envres.2020.109770] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/29/2020] [Accepted: 05/30/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The process for leather material production is carried out in developing countries using a large amount of trivalent chromium [Cr(III)]. Assesment of health risks for millions of workers in tanneries worldwide that are highly polluted with Cr(III) is needed. METHODS Levels of total Cr and its chemical species in wastewater samples from tannery built-up areas of Bangladesh were investigated. Cr-mediated renal damage was assessed in 100 male tannery workers by epidemiological analysis consisting of questionnaires and measurements of levels of urinary Cr and urinary renal damage markers [urinary levels of total protein and kidney injury molecule-1 (KIM-1)]. RESULTS High levels of total Cr (mean ± standard deviation = 1,908,762 ± 703,450 μg/L) were detected in wastewater samples from 13 sites of tanneries. More than 99.99% of total Cr in the wastewater was Cr(III), indicating that workers in the tanneries were exposed to large concentrations of Cr(III). Cr levels (mean ± standard, 2.89 ± 4.23 μg/g creatinine) in urine samples from the workers in tanneries were >24-fold higher than the levels in a general population previously reported. Multivariate analysis showed significant correlations between urinary levels of Cr and urinary levels of renal damage biomarkers. Nagelkerke Pseudo R2 values also showed that Cr level is the strongest contributor to the levels of renal damage biomarkers in the workers. CONCLUSION Our results newly suggest that excess exposure to Cr(III) could be a risk for renal damage in humans.
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Affiliation(s)
- Tomoyuki Tsuchiyama
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Mm Aeorangajeb Al Hossain
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Directorate General of Health Services, Ministry of Health and Family Welfare, Government of the People's Republic of Bangladesh, Mohakhali, Dhaka, 1212, Bangladesh
| | - Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Nazmul Ahsan
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Anwarul Azim Akhand
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Kazunori Hashimoto
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.
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17
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Abstract
PURPOSE OF REVIEW The question whether food choice and eating behavior influence the mood or are influenced by the mood has been inquisitive to scientists and researchers. The purpose of this review is to support or refuse the argument that mood is affected by food or vice versa. RECENT FINDINGS The association between food and mood has been comprehensively elucidated in this review based on several studies that include participants from different ages, cultural backgrounds, and health status. The correlation among food, mood, and diseases such as diabetes mellitus, obesity, and depression was thoroughly investigated. The effect of different foods and nutrients on the mood was further explained. It is concluded that the mood significantly affects food intake and food choices. On the other hand, food also influences the mood, which affects the diseases either positively or negatively. Appropriate food choices play a significant role in mood enhancement. Advertisement is another crucial factor that negatively affects food choices and mood and contributes to many diseases. Understanding the interaction between food and mood can help to prevent or alleviate undesired health issues.
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Affiliation(s)
- Welayah A AlAmmar
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Fatima H Albeesh
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Rabie Y Khattab
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
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18
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Kato M, Ohgami N, Ohnuma S, Hashimoto K, Tazaki A, Xu H, Kondo-Ida L, Yuan T, Tsuchiyama T, He T, Kurniasari F, Gu Y, Chen W, Deng Y, Komuro K, Tong K, Yajima I. Multidisciplinary approach to assess the toxicities of arsenic and barium in drinking water. Environ Health Prev Med 2020; 25:16. [PMID: 32460744 PMCID: PMC7254659 DOI: 10.1186/s12199-020-00855-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 05/17/2020] [Indexed: 12/17/2022] Open
Abstract
Well water could be a stable source of drinking water. Recently, the use of well water as drinking water has been encouraged in developing countries. However, many kinds of disorders caused by toxic elements in well drinking water have been reported. It is our urgent task to resolve the global issue of element-originating diseases. In this review article, our multidisciplinary approaches focusing on oncogenic toxicities and disturbances of sensory organs (skin and ear) induced by arsenic and barium are introduced. First, our environmental monitoring in developing countries in Asia showed elevated concentrations of arsenic and barium in well drinking water. Then our experimental studies in mice and our epidemiological studies in humans showed arsenic-mediated increased risks of hyperpigmented skin and hearing loss with partial elucidation of their mechanisms. Our experimental studies using cultured cells with focus on the expression and activity levels of intracellular signal transduction molecules such as c-SRC, c-RET, and oncogenic RET showed risks for malignant transformation and/or progression arose from arsenic and barium. Finally, our original hydrotalcite-like compound was proposed as a novel remediation system to effectively remove arsenic and barium from well drinking water. Hopefully, comprehensive studies consisting of (1) environmental monitoring, (2) health risk assessments, and (3) remediation will be expanded in the field of environmental health to prevent various disorders caused by environmental factors including toxic elements in drinking water.
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Affiliation(s)
- Masashi Kato
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan. .,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.
| | - Nobutaka Ohgami
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Shoko Ohnuma
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Kazunori Hashimoto
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Akira Tazaki
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Huadong Xu
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Lisa Kondo-Ida
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Tian Yuan
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Tomoyuki Tsuchiyama
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Tingchao He
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Fitri Kurniasari
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Yishuo Gu
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Wei Chen
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Yuqi Deng
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Kanako Komuro
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Keming Tong
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Ichiro Yajima
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
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19
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Al Hossain MMA, Yajima I, Tazaki A, Xu H, Saheduzzaman M, Ohgami N, Ahsan N, Akhand AA, Kato M. Chromium-mediated hyperpigmentation of skin in male tannery workers in Bangladesh. CHEMOSPHERE 2019; 229:611-617. [PMID: 31102916 DOI: 10.1016/j.chemosphere.2019.04.112] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/10/2019] [Accepted: 04/14/2019] [Indexed: 06/09/2023]
Abstract
Since tannery workers in developing countries are chronically exposed to high levels of chromium (Cr), there are serious concerns about health problems. However, there has been limited study in which Cr levels were measured in tannery workers, who are chronically exposed to Cr. Our preliminary inspection showed that there was hyperpigmented skin in tannery workers. We therefore investigated the correlation between skin pigmentation levels digitally evaluated as L* values by using a reflectance spectrophotometer and Cr levels in skin appendages in 100 male tannery workers and in 49 male non-tannery workers in Bangladesh. Digitalized skin pigmentation levels of the face and feet in addition to Cr levels in hair and toenails in tannery workers were significantly higher than those in non-tannery workers in our univariate analysis. Spearman's rank correlation coefficient analysis showed significant correlation between duration of tannery work (years) and Cr levels in hair (r = 0.62) and toenails (r = 0.61). Our multivariate analysis also showed that Cr levels in hair and toenails were significantly correlated with digitalized skin pigmentation levels of the face and feet in addition to duration of tannery work in all participants. Thus, our results showed the development of hyperpigmented skin in tannery workers. Our results also suggested that hyperpigmented skin could be a useful diagnostic marker for chronic exposure to Cr. Furthermore, cutaneous L* value might be a convenient marker for detection of chronic Cr poisoning, since the digitalized values enable objective evaluation of skin pigmented levels by general people as well as dermatologists.
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Affiliation(s)
- M M Aeorangajeb Al Hossain
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Directorate General of Health Services, Ministry of Health and Family Welfare, Government of the People's Republic of Bangladesh, Mohakhali, Dhaka, 1212, Bangladesh
| | - Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Huadong Xu
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Md Saheduzzaman
- Institute of Biological Sciences, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Nazmul Ahsan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Anwarul Azim Akhand
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.
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20
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Hearing loss in humans drinking tube well water with high levels of iron in arsenic-polluted area. Sci Rep 2019; 9:9028. [PMID: 31227759 PMCID: PMC6588562 DOI: 10.1038/s41598-019-45524-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 06/10/2019] [Indexed: 11/25/2022] Open
Abstract
Well water for drinking with increased levels of iron in arsenic-polluted areas has been reported worldwide. Oral exposure to arsenic has been shown to be associated with hearing loss, while there is no evidence for an association between excessive exposure to iron and hearing loss in humans. In this study, we determined iron and arsenic levels in biological samples and hearing levels by pure tone audiometry (PTA) in subjects in a control area and an arsenic-polluted area in Bangladesh. The iron level in well water in the arsenic-polluted area was significantly higher than that in piped supply water in the control area. Subjects in the polluted area (n = 109), who had higher iron and arsenic levels in hair and toenails than those in subjects in the control area (n = 36), had an increased risk of hearing loss at 8 kHz and 12 kHz after adjustments for age, gender, smoking and BMI. Significant associations of the exposure group with hearing loss at 8 kHz and 12 kHz remained after further adjustment for arsenic levels in toenails and hair. Thus, this pilot study showed that excessive exposure to iron via drinking water is a potential risk for hearing loss in humans.
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21
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Chen W, Hashimoto K, Omata Y, Ohgami N, Tazaki A, Deng Y, Kondo-Ida L, Intoh A, Kato M. Adsorption of molybdenum by melanin. Environ Health Prev Med 2019; 24:36. [PMID: 31101002 PMCID: PMC6525471 DOI: 10.1186/s12199-019-0791-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 05/03/2019] [Indexed: 02/02/2023] Open
Abstract
Background Melanin is detectable in various sense organs including the skin in animals. It has been reported that melanin adsorbs toxic elements such as mercury, cadmium, and lead. In this study, we investigated the adsorption of molybdenum, which is widely recognized as a toxic element, by melanin. Methods Molybdenum level of the mouse skin was measured by inductively coupled plasma mass spectrometry. The pigmentation level of murine skin was digitalized as the L* value by using a reflectance spectrophotometer. An in vitro adsorption assay was performed to confirm the interaction between molybdenum and melanin. Results Our analysis of hairless mice with different levels of skin pigmentation showed that the level of molybdenum increased with an increase in the level of skin pigmentation (L* value). Moreover, our analysis by Spearman’s correlation coefficient test showed a strong correlation (r = − 0.9441, p < 0.0001) between L* value and molybdenum level. Our cell-free experiment using the Langmuir isotherm provided evidence for the adsorption of molybdenum by melanin. The maximum adsorption capacity of 1 mg of synthetic melanin for molybdenum was 131 μg in theory. Conclusion Our in vivo and in vitro results showed a new aspect of melanin as an adsorbent of molybdenum. Electronic supplementary material The online version of this article (10.1186/s12199-019-0791-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wei Chen
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Kazunori Hashimoto
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Yasuhiro Omata
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Yuqi Deng
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Lisa Kondo-Ida
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Atsushi Intoh
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.,Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan. .,Voluntary Body for International Health Care in Universities, Nagoya, Japan.
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22
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Barai M, Ahsan N, Paul N, Hossain K, Abdur Rashid M, Kato M, Ohgami N, Azim Akhand A. Amelioration of arsenic-induced toxic effects in mice by dietary supplementation of Syzygium cumini leaf extract. NAGOYA JOURNAL OF MEDICAL SCIENCE 2018. [PMID: 28626252 PMCID: PMC5472542 DOI: 10.18999/nagjms.79.2.167] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Arsenic created a serious public health problem in Bangladesh due to its presence in groundwater and dissemination of the toxic effects to millions of people. The scarcity of the treatment options to manage this affected population has made the situation much worse. To find a promising treatment option, this study was undertaken to examine the ameliorating roles of Syzygium cumini leaf extract (SLE) against arsenic-induced toxic effects in mice. Swiss albino mice were divided into four groups where ‘control’ group received pure water + normal feed, ‘arsenic (As)’ group received sodium arsenite (NaAsO2)-containing water (10 μg/g body weight/day) + normal feed, ‘As+SLE’ group received NaAsO2-containing water + feed supplemented with SLE (50 µg/g body weight/day) and finally the ‘SLE’ group received pure water + feed supplemented with SLE. A gradual increase in body weight gain was observed in control mice; however, the body weight gain in As-exposed mice was decreased. This decrease in body weight gain was prevented in As+SLE group mice that received SLE supplemented feed. Arsenic showed a secondary effect by causing enlargement of spleen, kidney and liver of ‘As’ group mice and this enlargement of the organs was minimized with SLE supplementation. In addition, SLE abrogated arsenic-mediated elevation of serum alkaline phosphatase (ALP), alanine aminotransferase (ALT), lactate dehydrogenase (LDH), uric acid and glucose. These results, therefore, suggest that SLE might have future therapeutic value for preventing or reducing arsenic-induced toxic effects.
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Affiliation(s)
- Milan Barai
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka-1000, Bangladesh
| | - Nazmul Ahsan
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka-1000, Bangladesh
| | - Nilanjana Paul
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka-1000, Bangladesh
| | - Khaled Hossain
- Department of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi-6205, Bangladesh
| | | | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Anwarul Azim Akhand
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka-1000, Bangladesh
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Omata Y, Yoshinaga M, Yajima I, Ohgami N, Hashimoto K, Higashimura K, Tazaki A, Kato M. A disadvantageous effect of adsorption of barium by melanin on transforming activity. CHEMOSPHERE 2018; 210:384-391. [PMID: 30015129 DOI: 10.1016/j.chemosphere.2018.07.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/14/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
At present, beneficial effects of melanin and harmful effects of barium have been reported. However, little is known about the adsorption of barium, and even less is known about the biological significance of adsorption of barium by melanin. In this study, we showed that there was a strong correlation between the digitalized level of skin pigmentation and barium level in murine skin compared to the correlations between skin pigmentation level and levels of homologous elements of barium (magnesium, calcium and strontium). The concentration of subcutaneously injected barium in skin with a high level of pigmentation was higher than that in skin with a low level of pigmentation. Our cell-free experiment using the Langmuir isotherm for adsorption of barium in synthetic melanin also provided direct evidence of adsorption of barium by melanin. We then investigated the biological significance of melanin-mediated barium adsorption. We found barium-mediated increase in transforming activity in pigmented melanocytes (melan-a) but not in unpigmented melanocytes (melan-c) after confirming that the barium level in melan-a melanocytes was 3.4-fold higher than that in melan-c melanocytes after culture of 5 μM barium for 24 h. Taken together, our results not only indicate adsorption of barium by melanin in mice, cells and cell-free systems but also suggest a disadvantageous effect of adsorption of barium by melanin on transforming activity in cultured cells.
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Affiliation(s)
- Yasuhiro Omata
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan
| | - Masafumi Yoshinaga
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Kazunori Hashimoto
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Kaho Higashimura
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Akira Tazaki
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, Japan; Voluntary Body for International Health Care in Universities, Nagoya, Japan.
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Li X, Ohgami N, Yajima I, Xu H, Iida M, Oshino R, Ninomiya H, Shen D, Ahsan N, Akhand AA, Kato M. Arsenic level in toenails is associated with hearing loss in humans. PLoS One 2018; 13:e0198743. [PMID: 29975704 PMCID: PMC6033376 DOI: 10.1371/journal.pone.0198743] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 05/24/2018] [Indexed: 11/18/2022] Open
Abstract
Arsenic (As) pollution in drinking water is a worldwide health risk for humans. We previously showed hearing loss in young people who live in areas of As-polluted drinking water and in young mice orally treated with As. In this study, we epidemiologically examined associations between As levels in toenails and hearing in 145 Bangladeshi aged 12-55 years in 2014. Levels of As in toenails, but not those in urine, were shown to be significantly correlated with hearing loss at 4 kHz [odds ratio (OR) = 4.27; 95% confidence interval (CI): 1.51, 12.05], 8 kHz (OR = 3.91; 95% CI: 1.47, 10.38) and 12 kHz (OR = 4.15; 95% CI: 1.55, 11.09) by multivariate analysis with adjustments for age, sex, smoking and BMI. Our experimental study further showed a significant association between As levels in inner ears and nails (r = 0.8113, p = 0.0014) in mice orally exposed to As, suggesting that As level in nails is a suitable index to assess As level in inner ears. Taken together, the results of our study suggest that As level in nails could be a convenient and non-invasive biomarker for As-mediated hearing loss in humans.
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Affiliation(s)
- Xiang Li
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Huadong Xu
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Machiko Iida
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Reina Oshino
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Hiromasa Ninomiya
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Dandan Shen
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nazmul Ahsan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Bangladesh
| | - Anwarul Azim Akhand
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Bangladesh
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
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Yoshinaga M, Ninomiya H, Al Hossain MMA, Sudo M, Akhand AA, Ahsan N, Alim MA, Khalequzzaman M, Iida M, Yajima I, Ohgami N, Kato M. A comprehensive study including monitoring, assessment of health effects and development of a remediation method for chromium pollution. CHEMOSPHERE 2018; 201:667-675. [PMID: 29547855 DOI: 10.1016/j.chemosphere.2018.03.026] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 02/28/2018] [Accepted: 03/04/2018] [Indexed: 06/08/2023]
Abstract
Chromium (Cr) pollution caused by wastewater from tanneries is a worldwide environmental problem. To develop a countermeasure, we performed a comprehensive study using Hazaribagh, the tannery area in Dhaka City, Bangladesh, as a model. Our environmental monitoring indicated that the soluble form of Cr, but not barium or arsenic, in Buriganga River is derived from Hazaribagh. Our chemical analysis next showed that Cr, the primary pollutant in canal water at Hazaribagh, consisted of ≤0.7 μM hexavalent Cr [Cr(VI)] and ≤1705 μM trivalent Cr [Cr(III)]. Our biological study then showed that coexposure to Cr(VI) and Cr(III) at possible ratios in canal water at Hazaribagh synergistically promotes transforming activity of human non-tumorigenic HaCaT keratinocytes with activated MEK/ERK and AKT. Our environmental engineering study finally indicated that a magnesium and iron-based hydrotalcite-like compound (MF-HT), our original depurative, can maximally adsorb 9.0 mg/g Cr(VI) and 1041 mg/g Cr(III). Our results suggested the importance of removal of Cr(III) as well as Cr(VI) by showing that Cr(III), which is generally recognized as a chemical with low toxicity, synergistically promoted carcinogenicity of a low level of Cr(VI). Therefore, we propose the use of our original high-efficient and low-cost depurative as a countermeasure to address the worldwide problem of environmental Cr pollution.
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Affiliation(s)
- Masafumi Yoshinaga
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Hiromasa Ninomiya
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - M M Aeorangajeb Al Hossain
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Makoto Sudo
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan
| | - Anwarul Azim Akhand
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh
| | - Nazmul Ahsan
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh
| | - Md Abdul Alim
- Institute of Public Health Nutrition, Directorate General of Health Services, Dhaka, Bangladesh
| | - Md Khalequzzaman
- Department of Public Health and Informatics, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Machiko Iida
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan
| | - Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi, Japan; Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi, Japan.
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26
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Yajima I, Ahsan N, Akhand AA, Al Hossain MA, Yoshinaga M, Ohgami N, Iida M, Oshino R, Naito M, Wakai K, Kato M. Arsenic levels in cutaneous appendicular organs are correlated with digitally evaluated hyperpigmented skin of the forehead but not the sole in Bangladesh residents. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2018; 28:64-68. [PMID: 27966667 DOI: 10.1038/jes.2016.70] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 10/28/2016] [Indexed: 06/06/2023]
Abstract
There has been no report showing the effect of arsenic level on digitized skin pigmentation level, a typical diagnostic marker for arsenicosis. Correlations among history of drinking well water, arsenic levels in hair and toenails, and digitalized skin pigmentation levels (L*-value) in sunlight-exposed (forehead) and unexposed (sole) skin areas digitally evaluated by using a reflectance spectrophotometer were examined in 150 residents of Bangladesh. Univariate analysis showed that arsenic levels in hair and toenails of subjects with a history of drinking well water were 10.6-fold and 7.1-fold higher, respectively, than those in subjects without a history of drinking well water. The mean L*-value of foreheads, but not that of soles, in subjects with a history of drinking well water was 1.15-fold lower (more pigmented) than that in subjects without a history of drinking well water. Significant correlations were found between duration of drinking well water and arsenic concentrations in hair (r=0.63; P<0.01) and toenails (r=0.60; P<0.01). Multivariate analysis showed that the arsenic levels in hair and toenails and the duration of drinking well water were strongly correlated with the digitized pigmented level of the forehead but not that of the sole. An increase in the duration of drinking well water may increase hyperpigmentation in the forehead, but not that in the sole, through an increased arsenic level in the human body as shown in cutaneous appendicular organs (hair and toenails).
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Affiliation(s)
- Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Nazmul Ahsan
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Anwarul Azim Akhand
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Mm Aeorangajeb Al Hossain
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Masafumi Yoshinaga
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Machiko Iida
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Reina Oshino
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
- Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
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Li Z, Wang B, Huo W, Liu Y, Zhu Y, Xie J, Li Z, Ren A. Are concentrations of alkaline earth elements in maternal hair associated with risk of neural tube defects? THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 609:694-700. [PMID: 28763666 DOI: 10.1016/j.scitotenv.2017.07.160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 07/17/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
The relationship between maternal intake of alkaline earth elements (AEEs) during the period of neural tube closure and the risk of neural tube defects (NTDs) is still unclear. We propose that AEE deficiency during the early period of pregnancy is associated with an elevated risk of NTDs in the offspring. In this study, we recruited 191 women with NTD-affected pregnancies (cases) and 261 women who delivered healthy infants (controls). The concentrations of four AEEs (Ca, Mg, Sr, Ba) in maternal hair sections that grew during early pregnancy were analyzed. Information on the dietary habits of the mothers was also collected by questionnaire. Higher concentrations of the four AEEs in hair had protective effects against the risk of total NTDs, with odds ratios with 95% confidence interval (comparing groups separated by each median level) of 0.44 (0.28-0.68) for Mg, 0.56 (0.36-0.87) for Ca, 0.45 (0.28-0.70) for Sr, and 0.41 (0.26-0.65) for Ba. Significant negative dose-response trends were identified for the relationships between the four AEE concentrations in maternal hair and the risks of anencephaly and spina bifida, but not for encephalocele. The frequencies of maternal consumption of fresh green vegetables, fresh fruit, and meat or fish were positively correlated with the concentrations of AEEs in hair. We concluded that the maternal intake of AEEs may play an important role in preventing NTD formation in offspring, and that this intake is related to maternal dietary habits of consuming fresh green vegetables, fresh fruit, and fish or meat.
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Affiliation(s)
- Zhenjiang Li
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Bin Wang
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China.
| | - Wenhua Huo
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Yingying Liu
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Yibing Zhu
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Jing Xie
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Zhiwen Li
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China.
| | - Aiguo Ren
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
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28
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Zhang N, Liu Z, Tian X, Chen M, Deng Y, Guo Y, Li N, Yu P, Yang J, Zhu J. Barium exposure increases the risk of congenital heart defects occurrence in offspring. Clin Toxicol (Phila) 2017; 56:132-139. [PMID: 28705031 DOI: 10.1080/15563650.2017.1343479] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
CONTEXT Several studies have investigated the association between heavy metal exposure and congenital heart defects (CHDs). However, there are limited data regarding the relationship between barium exposure and the occurrence of CHDs. The objective of this study was to analyze the association between barium exposure in mothers and the risk of CHD in offspring. MATERIALS AND METHODS We developed a case-control study with 399 cases and 490 controls with normal live births in China. The concentrations of barium in hair of pregnant woman and fetal placenta were measured. We used a logistic regression analysis to explore the association between barium exposure and the risk of CHD. RESULTS Logistic regression analysis indicated that the median concentration of barium in maternal hair in the CHD group was 4.180 ng/mg (adjusted odds ratio [aOR], 1.230; 95% confidence interval [CI], 1.146-1.321; p < .001), which was significantly higher than that in the control group (2.740 ng/mg). Furthermore, the median concentration of barium in fetal placental tissue in the CHD group was 0.617 ng/mg, while that in the control group was 0.447 ng/mg (aOR, 1.392; 95% CI, 1.074-1.659; p = .003). Significant differences in the concentration of barium in hair were also found between the different CHD subtypes and the controls. These differences were found in cases with septal defects (p < .001), conotruncal defects (p < .001), right ventricular outflow track obstruction (p < .001), left ventricular outflow track obstruction (p < .001), and anomalous pulmonary venous return (p = .010). Significantly different barium concentrations in fetal tissue were only found in cases with septal defects (p = .010). CONCLUSIONS Maternal barium exposure was dose-dependently related to the risk of CHD in the offspring. Our findings suggest that the occurrence of some subtypes of CHD is associated with barium exposure.
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Affiliation(s)
- Nannan Zhang
- a National Center for Birth Defect Monitoring , West China Second University Hospital, Sichuan University , Chengdu , PR China.,b Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education , West China Second University Hospital, Sichuan University , Chengdu , PR China.,c State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy , West China Hospital, Sichuan University , Chengdu , PR China
| | - Zhen Liu
- a National Center for Birth Defect Monitoring , West China Second University Hospital, Sichuan University , Chengdu , PR China.,b Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education , West China Second University Hospital, Sichuan University , Chengdu , PR China
| | - Xiaoxian Tian
- d Department of Ultrasound , Maternal and Child Healthcare Hospital of Guangxi Zhuang Autonomous Region , Nanning , PR China
| | - Ming Chen
- e Department of Ultrasound , Harbin Red cross Central Hospital , Harbin , PR China
| | - Ying Deng
- a National Center for Birth Defect Monitoring , West China Second University Hospital, Sichuan University , Chengdu , PR China.,b Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education , West China Second University Hospital, Sichuan University , Chengdu , PR China
| | - Yixiong Guo
- b Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education , West China Second University Hospital, Sichuan University , Chengdu , PR China
| | - Nana Li
- b Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education , West China Second University Hospital, Sichuan University , Chengdu , PR China
| | - Ping Yu
- b Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education , West China Second University Hospital, Sichuan University , Chengdu , PR China
| | - Jiaxiang Yang
- f Department of Ultrasound , Sichuan Provincial Maternal and Child Healthcare Hospital , Chengdu , PR China
| | - Jun Zhu
- a National Center for Birth Defect Monitoring , West China Second University Hospital, Sichuan University , Chengdu , PR China.,b Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education , West China Second University Hospital, Sichuan University , Chengdu , PR China
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29
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Yajima I. Research on Hygiene Based on Fieldwork and Experimental Studies. Nihon Eiseigaku Zasshi 2017; 72:49-54. [PMID: 28154361 DOI: 10.1265/jjh.72.49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Several experimental studies on hygiene have recently been performed and fieldwork studies are also important and essential tools. However, the implementation of experimental studies is insufficient compared with that of fieldwork studies on hygiene. Here, we show our well-balanced implementation of both fieldwork and experimental studies of toxic-element-mediated diseases including skin cancer and hearing loss. Since the pollution of drinking well water by toxic elements induces various diseases including skin cancer, we performed both fieldwork and experimental studies to determine the levels of toxic elements and the mechanisms behind the development of toxic-element-related diseases and to develop a novel remediation system. Our fieldwork studies in several countries including Bangladesh, Vietnam and Malaysia demonstrated that drinking well water was polluted with high concentrations of several toxic elements including arsenic, barium, iron and manganese. Our experimental studies using the data from our fieldwork studies demonstrated that these toxic elements caused skin cancer and hearing loss. Further experimental studies resulted in the development of a novel remediation system that adsorbs toxic elements from polluted drinking water. A well-balanced implementation of both fieldwork and experimental studies is important for the prediction, prevention and therapy of toxic-element-mediated diseases.
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Affiliation(s)
- Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine
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Pragst F, Stieglitz K, Runge H, Runow KD, Quig D, Osborne R, Runge C, Ariki J. High concentrations of lead and barium in hair of the rural population caused by water pollution in the Thar Jath oilfields in South Sudan. Forensic Sci Int 2016; 274:99-106. [PMID: 28069428 DOI: 10.1016/j.forsciint.2016.12.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 12/03/2016] [Accepted: 12/17/2016] [Indexed: 11/19/2022]
Abstract
In the oil fields of Thar Jath, South Sudan, increasing salinity of drinking water was observed together with human incompatibilities and rise in livestock mortalities. Hair analysis was used to characterize the toxic exposure of the population. Hair samples of volunteers from four communities with different distance from the center of the oil field (Koch 23km, n=24; Leer 50km, n=26; Nyal 110km, n=21; and Rumbek 220km, n=25) were analyzed for altogether 39 elements by inductively coupled plasma-mass spectrometry. Very high concentrations and a toxic health endangerment were assessed for lead and barium. The concentration of lead increased steadily with decreasing distance from the oil field from Rumbek (mean 2.8μg/g) to Koch (mean 18.7μg/g) and was there in the same range as in highly contaminated mining regions in Kosovo, China or Bolivia. The weighting materials in drilling muds barite (BaSO4) and galena (PbS) were considered to be the sources of drinking water pollution and high hair values. The high concentrations of lead and barium in hair demonstrate clearly the health risk caused by harmful deposition of toxic industrial waste but cannot be used for diagnosis of a chronic intoxication of the individuals.
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Affiliation(s)
- Fritz Pragst
- Institute of Legal Medicine, University Hospital Charité, Turmstraße 21, Building N, 10559 Berlin, Germany.
| | - Klaus Stieglitz
- Sign of Hope e.V., Schneckenburgstraße 11d, 78467 Konstanz, Germany.
| | - Hella Runge
- African Water Ltd., Mariendorfer Straße 15e, 48155 Münster, Germany.
| | - Klaus-Dietrich Runow
- Institute of Functional and Environmental Medicine, Buttlarstraße 4a, 34466 Wolfhagen, Germany.
| | - David Quig
- Doctors's Data, Inc., 3755 Illinois Avenue, St. Charles, IL 60174-2420, USA.
| | - Robert Osborne
- Sign of Hope e.V., P.O. Box 21335-00505, Nairobi, Kenya.
| | - Christian Runge
- African Water Ltd., Mariendorfer Straße 15e, 48155 Münster, Germany.
| | - John Ariki
- Director Centre for Remote Sensing and GIS, University of Juba, P.O. Box 82, Juba, South Sudan.
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Ilmiawati C, Thang ND, Iida M, Maeda M, Ohnuma S, Yajima I, Ohgami N, Oshino R, Al Hossain MMA, Ninomiya H, Kato M. Limited effectiveness of household sand filters for removal of arsenic from well water in North Vietnam. JOURNAL OF WATER AND HEALTH 2016; 14:1032-1040. [PMID: 27959882 DOI: 10.2166/wh.2016.254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Since well water utilized for domestic purposes in the Red River Delta of North Vietnam has been reported to be polluted by arsenic, barium, iron, and manganese, household sand filters consisting of various components are used. Information regarding the effectiveness of various sand filters for removal of the four toxic elements in well water is limited. In this study, arsenic levels in 13/20 of well water samples and 1/7 of tap water samples exceeded World Health Organization (WHO) health-based guideline value for drinking water. Moreover, 2/20, 6/20, and 4/20 of well water samples had levels exceeding the present and previous guideline levels for barium, iron, and manganese, respectively. Levels of iron and manganese, but not arsenic, in well water treated by sand filters were lower than those in untreated water, although previous studies showed that sand filters removed all of those elements from water. A low ratio of iron/arsenic in well water may not be sufficient for efficient removal of arsenic from household sand filters. The levels of barium in well water treated by sand filters, especially a filter composed of sand and charcoal, were significantly lower than those in untreated water. Thus, we demonstrated characteristics of sand filters in North Vietnam.
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Affiliation(s)
- Cimi Ilmiawati
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan E-mail: ; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan; Department of Pharmacology, Faculty of Medicine Andalas University, Padang, West Sumatra, Indonesia
| | - Nguyen Dinh Thang
- Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi 487-8501, Japan; University of Science, Vietnam National University, Hanoi, Vietnam
| | - Machiko Iida
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan E-mail: ; Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi 487-8501, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Masao Maeda
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan E-mail: ; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Shoko Ohnuma
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Ichiro Yajima
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan E-mail: ; Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi 487-8501, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Nobutaka Ohgami
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan E-mail: ; Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi 487-8501, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Reina Oshino
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan E-mail: ; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - M M Aeorangajeb Al Hossain
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan E-mail: ; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Hiromasa Ninomiya
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan E-mail: ; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Masashi Kato
- Departments of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan E-mail: ; Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi 487-8501, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
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Kato M, Azimi MD, Fayaz SH, Shah MD, Hoque MZ, Hamajima N, Ohnuma S, Ohtsuka T, Maeda M, Yoshinaga M. Uranium in well drinking water of Kabul, Afghanistan and its effective, low-cost depuration using Mg-Fe based hydrotalcite-like compounds. CHEMOSPHERE 2016; 165:27-32. [PMID: 27619645 DOI: 10.1016/j.chemosphere.2016.08.124] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/12/2016] [Accepted: 08/25/2016] [Indexed: 06/06/2023]
Abstract
Toxic elements in drinking water have great effects on human health. However, there is very limited information about toxic elements in drinking water in Afghanistan. In this study, levels of 10 elements (chromium, nickel, copper, arsenic, cadmium, antimony, barium, mercury, lead and uranium) in 227 well drinking water samples in Kabul, Afghanistan were examined for the first time. Chromium (in 0.9% of the 227 samples), arsenic (7.0%) and uranium (19.4%) exceeded the values in WHO health-based guidelines for drinking-water quality. Maximum chromium, arsenic and uranium levels in the water samples were 1.3-, 10.4- and 17.2-fold higher than the values in the guidelines, respectively. We next focused on uranium, which is the most seriously polluted element among the 10 elements. Mean ± SD (138.0 ± 1.4) of the 238U/235U isotopic ratio in the water samples was in the range of previously reported ratios for natural source uranium. We then examined the effect of our originally developed magnesium (Mg)-iron (Fe)-based hydrotalcite-like compounds (MF-HT) on adsorption for uranium. All of the uranium-polluted well water samples from Kabul (mean ± SD = 190.4 ± 113.9 μg/L; n = 11) could be remediated up to 1.2 ± 1.7 μg/L by 1% weight of our MF-HT within 60 s at very low cost (<0.001 cents/day/family) in theory. Thus, we demonstrated not only elevated levels of some toxic elements including natural source uranium but also an effective depurative for uranium in well drinking water from Kabul. Since our depurative is effective for remediation of arsenic as shown in our previous studies, its practical use in Kabul may be encouraged.
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Affiliation(s)
- Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Units of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai, Aichi 487-8501, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan.
| | - Mohammad Daud Azimi
- General Directorate of Policy, Planning and International Relations, Ministry of Public Health, Kabul, Afghanistan
| | - Said Hafizullah Fayaz
- Administrative Office of the President, Deputy Public Relations and Outreach, Kabul, Afghanistan
| | - Muhammad Dawood Shah
- Department of Pathobiology and Medical Diagnostics, Faculty of Medicine and Health Sciences, University Malaysia Sabah, Malaysia
| | - Md Zahirul Hoque
- Department of Pathobiology and Medical Diagnostics, Faculty of Medicine and Health Sciences, University Malaysia Sabah, Malaysia
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Shoko Ohnuma
- Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Tomomi Ohtsuka
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Masao Maeda
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
| | - Masafumi Yoshinaga
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan; Voluntary Body for International Healthcare in Universities, Nagoya, Aichi 466-8550, Japan
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Ohgami N, Mitsumatsu Y, Ahsan N, Akhand AA, Li X, Iida M, Yajima I, Naito M, Wakai K, Ohnuma S, Kato M. Epidemiological analysis of the association between hearing and barium in humans. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2016; 26:488-493. [PMID: 26464097 DOI: 10.1038/jes.2015.62] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 08/10/2015] [Accepted: 08/21/2015] [Indexed: 06/05/2023]
Abstract
Our previous study experimentally showed barium (Ba)-mediated hearing loss in mice. To our knowledge, however, it remains unknown whether Ba affects hearing in humans. This epidemiological study aimed at investigating ototoxicity of Ba in humans. Associations of Ba levels in hair, toenails and urine with hearing levels (1, 4, 8 and 12 kHz) were analyzed in 145 Bangladeshi subjects. Binary logistic regression analysis with adjustment for age, sex, body mass index (BMI) and smoking showed that Ba levels in hair had significant associations with hearing loss at 8 kHz (OR=4.75; 95% CI: 1.44, 17.68) and 12 kHz (OR=15.48; 95% CI: 4.04, 79.45). Ba levels in toenails were also associated with hearing loss at 8 kHz (OR=3.20; 95% CI: 1.35, 7.85) and 12 kHz (OR=3.63; 95% CI: 1.58, 8.55), whereas there was no correlation between Ba level in urinary samples and hearing. There was a significant correlation between hearing loss and Ba levels in hair and toenails in the model adjusted with arsenic levels as the confounder. In conclusion, this study suggested that Ba levels could be a new risk factor for hearing loss, especially at high frequencies of 8 and 12 kHz, in humans.
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Affiliation(s)
- Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Nutritional Health Science Research Center, Chubu University, Matsumoto, Kasugai, Aichi, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Yuji Mitsumatsu
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nazmul Ahsan
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh
| | - Anwarul Azim Akhand
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh
| | - Xiang Li
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Machiko Iida
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Nutritional Health Science Research Center, Chubu University, Matsumoto, Kasugai, Aichi, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shoko Ohnuma
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Voluntary Body for International Health Care in Universities, Nagoya, Japan
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Hattori Y, Naito M, Satoh M, Nakatochi M, Naito H, Kato M, Takagi S, Matsunaga T, Seiki T, Sasakabe T, Suma S, Kawai S, Okada R, Hishida A, Hamajima N, Wakai K. Metallothionein MT2A A-5G Polymorphism as a Risk Factor for Chronic Kidney Disease and Diabetes: Cross-Sectional and Cohort Studies. Toxicol Sci 2016; 152:181-93. [PMID: 27122239 PMCID: PMC4922544 DOI: 10.1093/toxsci/kfw080] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Metallothioneins (MTs) are proteins that protect cells from toxic agents such as heavy metal ions or reactive oxygen species. MT2A A-5G is a single nucleotide polymorphism in the promoter region of the MT2A gene, and the minor G allele results in lower transcription efficiency. We aimed to elucidate associations between MT2A A-5G and risks of 2 diseases potentially related to lowered MT expression, chronic kidney disease (CKD), and diabetes mellitus (DM), in a community-dwelling population. Study subjects were Nagoya city residents participating in the Japan Multi-Institutional Collaborative Cohort Study (J-MICC) Daiko Study, comprised 749 men and 2,025 women, aged 39-75 years. CKD (>stage 3) and DM were defined by standard guidelines. Associations were evaluated using logistic regression models with adjustments for age, sex and potential confounders in a cross-sectional study, and verified in a 5-year longitudinal study. Odds ratios (OR [95% confidence interval]) were calculated relative to the AA genotype. Serum MT (I + II), Cd and zinc levels were also determined by genotype. The OR of the GG genotype for CKD risk was 3.98 (1.50, 10.58) in the cross-sectional study and 5.17 (1.39, 19.28) in the longitudinal study. The OR of the GA genotype for DM was 1.86 (1.26, 2.75) in the cross-sectional study and 2.03 (1.19, 3.46) in the longitudinal study. MT2A A-5G may be associated with CKD and DM risks. This polymorphism is a promising target for evaluations of CKD and DM risks with possible involvement of low-dose chronic exposure to environmental pollutants.
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Affiliation(s)
- Yuta Hattori
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Mariko Naito
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Masahiko Satoh
- Laboratory of Pharmaceutical Health Sciences, School of Pharmacy, Aichi Gakuin University, Nagoya, Aichi, 464-8650, Japan
| | - Masahiro Nakatochi
- Biostatistics and Bioinformatics Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi, 466-8550, Japan
| | - Hisao Naito
- Department of Public Health, Fujita Health University School of Medicine, Toyoake, Aichi, 470-1192, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Sahoko Takagi
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Takashi Matsunaga
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Toshio Seiki
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Tae Sasakabe
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Shino Suma
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan Department of Oral Disease Research, National Center for Geriatrics and Gerontology, Obu, Aichi, 474-8511, Japan
| | - Sayo Kawai
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Rieko Okada
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Asahi Hishida
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Kenji Wakai
- *Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
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Ohgami N, Yamanoshita O, Thang ND, Yajima I, Nakano C, Wenting W, Ohnuma S, Kato M. Carcinogenic risk of chromium, copper and arsenic in CCA-treated wood. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2015; 206:456-60. [PMID: 26275730 DOI: 10.1016/j.envpol.2015.07.041] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 07/23/2015] [Accepted: 07/25/2015] [Indexed: 05/04/2023]
Abstract
We showed that 2.1% of 233 pieces of lumber debris after the Great East Japan Earthquake was chromated copper arsenate (CCA)-treated wood. Since hexavalent chromium (Cr), copper (Cu) and pentavalent arsenic (As) in the debris may be diffused in the air via incineration, we exposed human lung normal (BEAS-2B) and carcinoma (A549) cells to Cr, Cu and As at the molar ratio in a representative CCA-treated wood. Co-exposure to 0.10 μM Cr and 0.06 μM As, which solely had no effect on colony formation, synergistically promoted colony formation in BEAS-2B cells, but not A549 cells, with activation of the PI3K/AKT pathway. Sole exposure and co-exposure to Cu showed limited effects. Since previous reports showed Cr and As concentrations to which human lungs might be exposed, our results suggest the importance to avoid diffusion of Cr and As in the air via incineration of debris including CCA-treated wood after the disaster.
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Affiliation(s)
- Nobutaka Ohgami
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan; Nutritional Health Science Research Center, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Osamu Yamanoshita
- Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Nguyen Dinh Thang
- Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan
| | - Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan; Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Chihiro Nakano
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Wu Wenting
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Shoko Ohnuma
- Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan
| | - Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan; Unit of Environmental Health Sciences, Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan; Voluntary Body for International Health Care in Universities, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan.
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Kato M, Omata Y, Iida M, Kumasaka MY, Ohgami N, Li X, Zou C, Nakano C, Kato Y, Ohgami K, Ohnuma S, Yajima I. [Development of Preventive Therapy by Clarification of Mechanisms of Environmental-Factor-Mediated Diseases]. Nihon Eiseigaku Zasshi 2015; 70:176-80. [PMID: 26411934 DOI: 10.1265/jjh.70.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Environmental factors affecting human health are generally classified into physical, chemical and biological factors. In this review article, we focus on ultraviolet (UV) as a physical factor, heavy metals as a chemical factor and Japanese cedar pollens as a biological factor. Since we believe that progress based on both fieldwork research and experimental research is essential in hygiene study, we included the results of both the research approached. We first introduced the mechanism of development of and prevention of UV-mediated skin melanoma in our experimental research after showing our epidemiological research on UV-mediated DNA damage in humans. We then introduced our evaluation of toxicity and development of a remediation system in our experimental research on heavy metals after showing our fieldwork research for the monitoring of drinking water from wells in Asian countries. We finally introduced the results of pathogenic analysis of pollinosis in our clinical study. We would be very happy if young researchers would re-realize the importance of experimental research as well as epidemiological research in hygiene study.
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Affiliation(s)
- Masashi Kato
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine
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Yao Y, Chen T, Shen SS, Niu Y, DesMarais TL, Linn R, Saunders E, Fan Z, Lioy P, Kluz T, Chen LC, Wu Z, Costa M, Zelikoff J. Malignant human cell transformation of Marcellus Shale gas drilling flow back water. Toxicol Appl Pharmacol 2015. [PMID: 26210350 DOI: 10.1016/j.taap.2015.07.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The rapid development of high-volume horizontal hydraulic fracturing for mining natural gas from shale has posed potential impacts on human health and biodiversity. The produced flow back waters after hydraulic stimulation are known to carry high levels of saline and total dissolved solids. To understand the toxicity and potential carcinogenic effects of these wastewaters, flow back waters from five Marcellus hydraulic fracturing oil and gas wells were analyzed. The physicochemical nature of these samples was analyzed by inductively coupled plasma mass spectrometry and scanning electron microscopy/energy dispersive X-ray spectroscopy. A cytotoxicity study using colony formation as the endpoint was carried out to define the LC50 values of test samples using human bronchial epithelial cells (BEAS-2B). The BEAS-2B cell transformation assay was employed to assess the carcinogenic potential of the samples. Barium and strontium were among the most abundant metals in these samples and the same metals were found to be elevated in BEAS-2B cells after long-term treatment. BEAS-2B cells treated for 6weeks with flow back waters produced colony formation in soft agar that was concentration dependent. In addition, flow back water-transformed BEAS-2B cells show better migration capability when compared to control cells. This study provides information needed to assess the potential health impact of post-hydraulic fracturing flow back waters from Marcellus Shale natural gas mining.
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Affiliation(s)
- Yixin Yao
- Department of Epidemiology, Shanghai Jiaotong University School of Public Health, China; Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Tingting Chen
- School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Steven S Shen
- Biochemistry and Molecular Pharmaceutical, New York University School of Medicine, USA
| | - Yingmei Niu
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Thomas L DesMarais
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Reka Linn
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Eric Saunders
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Zhihua Fan
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Paul Lioy
- Robert Wood Johnson Medical School Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Thomas Kluz
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Lung-Chi Chen
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA
| | - Zhuangchun Wu
- College of Science, Donghua University, Shanghai 201620, China.
| | - Max Costa
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA.
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Yajima I, Zou C, Li X, Nakano C, Omata Y, Kumasaka MY. [Analysis of heavy-metal-mediated disease and development of a novel remediation system based on fieldwork and experimental research]. Nihon Eiseigaku Zasshi 2015; 70:105-9. [PMID: 25994340 DOI: 10.1265/jjh.70.105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Heavy-metal pollution occurs in various environments, including water, air and soil, and has serious effects on human health. Since heavy-metal pollution in drinking water causes various diseases including skin cancer, it has become a global problem worldwide. However, there is limited information on the mechanism of development of heavy-metal-mediated disease. We performed both fieldwork and experimental studies to elucidate the levels of heavy-metal pollution and mechanisms of development of heavy-metal-related disease and to develop a novel remediation system. Our fieldwork in Bangladesh, Vietnam and Malaysia demonstrated that drinking well water in these countries was polluted with high concentrations of several heavy metals including arsenic, barium, iron and manganese. Our experimental studies based on the data from our fieldwork demonstrated that these heavy metals caused skin cancer and hearing loss. Further experimental studies resulted in the development of a novel remediation system with which toxic heavy metals were absorbed from polluted drinking water. Implementation of both fieldwork and experimental studies is important for prediction, prevention and therapy of heavy-metal-mediated diseases.
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Affiliation(s)
- Ichiro Yajima
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine
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SAYED SADIA. Protective effects of phyllanthus emblica leaf extract on sodium arsenite-mediated adverse effects in mice. NAGOYA JOURNAL OF MEDICAL SCIENCE 2015; 77:145-53. [PMID: 25797979 PMCID: PMC4361516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 11/10/2014] [Indexed: 11/01/2022]
Abstract
Groundwater contamination of arsenic is the major cause of a serious health hazard in Bangladesh. No specific treatment is yet available to manage the large number of individuals exposed to arsenic. In this study, we evaluated the protective effects of Phyllanthus emblica (Indian gooseberry or Amla) leaf extract (PLE) on arsenic-mediated toxicity in experimental mice. Male Swiss albino mice were divided into three different groups (n=6/group). 'Control' mice received arsenic free water together with normal feed. Mice in the remaining two groups designated 'SA' and 'SA+PLE' were exposed to sodium arsenite (SA, 10 µg/g body weight/day) through drinking water in addition to receiving normal feed and PLE-supplemented feed, respectively. The weight gain of SA-exposed mice was decreased compared with the controls; however, this decrease in body weight gain was prevented when the feed was supplemented with PLE. A secondary effect of arsenic was enlargement of the liver, kidney and spleen of SA-group mice. Deposition of arsenic in those organs was demonstrated by ICP-MS. When PLE was supplemented in the feed the enlargement of the organs was minimized; however, the deposition of arsenic was not significantly reduced. These results indicated that PLE may not block arsenic deposition in tissue directly but rather may play a protective role to reduce arsenic-induced toxicity. Therefore, co-administration of PLE in arsenic-exposed animals might have a future therapeutic application for protecting against arsenic-mediated toxicity.
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Affiliation(s)
- SADIA SAYED
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh
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Łukasik-Głębocka M, Sommerfeld K, Hanć A, Grzegorowski A, Barałkiewicz D, Gaca M, Zielińska-Psuja B. Barium determination in gastric contents, blood and urine by inductively coupled plasma mass spectrometry in the case of oral barium chloride poisoning. J Anal Toxicol 2014; 38:380-2. [PMID: 24794066 DOI: 10.1093/jat/bku037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A serious case of barium intoxication from suicidal ingestion is reported. Oral barium chloride poisoning with hypokalemia, neuromuscular and cardiac toxicity, treated with intravenous potassium supplementation and hemodialysis, was confirmed by the determination of barium concentrations in gastric contents, blood, serum and urine using the inductively coupled plasma mass spectrometry method. Barium concentrations in the analyzed specimens were 20.45 µg/L in serum, 150 µg/L in blood, 10,500 µg/L in urine and 63,500 µg/L in gastric contents. Results were compared with barium levels obtained from a non-intoxicated person.
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Affiliation(s)
- Magdalena Łukasik-Głębocka
- Department of Emergency Medicine, Poznan University of Medical Sciences, Poland Department of Toxicology, Raszeja Hospital, Poznań, Poland
| | - Karina Sommerfeld
- Department of Toxicology, Poznan University of Medical Sciences, Poland
| | - Anetta Hanć
- Department of Trace Element Analysis by Spectroscopy Methods, Adam Mickiewicz University in Poznań, Poland
| | | | - Danuta Barałkiewicz
- Department of Trace Element Analysis by Spectroscopy Methods, Adam Mickiewicz University in Poznań, Poland
| | - Michał Gaca
- Department of Anesthesiology in Obstetrics and Gynecology, Poznan University of Medical Sciences, Poland Department of Emergency Medicine, The President Stanislaw Wojciechowski Higher Vocational State School, Kalisz, Poland
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Physical, chemical, and biological methods for the removal of arsenic compounds. BIOMED RESEARCH INTERNATIONAL 2014; 2014:503784. [PMID: 24696853 PMCID: PMC3947798 DOI: 10.1155/2014/503784] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/30/2013] [Accepted: 12/30/2013] [Indexed: 01/03/2023]
Abstract
Arsenic is a toxic metalloid which is widely distributed in nature. It is normally present as arsenate under oxic conditions while arsenite is predominant under reducing condition. The major discharges of arsenic in the environment are mainly due to natural sources such as aquifers and anthropogenic sources. It is known that arsenite salts are more toxic than arsenate as it binds with vicinal thiols in pyruvate dehydrogenase while arsenate inhibits the oxidative phosphorylation process. The common mechanisms for arsenic detoxification are uptaken by phosphate transporters, aquaglyceroporins, and active extrusion system and reduced by arsenate reductases via dissimilatory reduction mechanism. Some species of autotrophic and heterotrophic microorganisms use arsenic oxyanions for their regeneration of energy. Certain species of microorganisms are able to use arsenate as their nutrient in respiratory process. Detoxification operons are a common form of arsenic resistance in microorganisms. Hence, the use of bioremediation could be an effective and economic way to reduce this pollutant from the environment.
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