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Luo Y, Zhang H, Gui F, Fang J, Lin H, Qiu D, Ge L, Wang Q, Xu P, Tang J. Concentrations and influencing factors of 17 elements in placenta, cord blood, and maternal blood of women from an e-waste recycling area. J Trace Elem Med Biol 2024; 84:127449. [PMID: 38640746 DOI: 10.1016/j.jtemb.2024.127449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/16/2024] [Accepted: 04/06/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND The effects of prenatal element exposure on mothers and fetuses have generated concern. Profiles of trace and toxic elements in biological material are urgently desired, especially for women who reside near e-waste recycling facilities. The aim of this study was to investigate elements concentrations in placenta, cord blood, and maternal blood of women and to evaluate the influencing factors. METHODS A group of 48 women from an e-waste recycling site and a group of 31 women from a non-e-waste recycling site were recruited. Basic characteristics were collected by questionnaire and the concentrations of 17 elements in placenta, cord blood, and maternal blood samples were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). Finally, the generalized linear model regression analysis (GLM) was used to test the association between element concentrations and possible factors. RESULTS Compared to the control group, the exposed group had significantly elevated cadmium (Cd), zinc (Zn), nickel (Ni), and antimony (Sb) in placenta, and higher lead (Pb) in maternal blood and cord blood (P<0.05). Sb concentration in maternal blood was significantly lower than in the control group (P<0.05). GLM analysis showed that element concentrations were mainly associated with maternal age [chromium (Cr), iron (Fe), selenium (Se), cobalt (Co), mercury (Hg) in placenta, copper (Cu) in maternal blood], education (Se, Sb in placenta), family income (Cu in maternal blood and Ni in placenta), passive smoking [Cu and Zn in placenta, Pb in maternal blood], and e-waste contact history (Hg in cord blood, Cu, Zn, and Cd in maternal blood). CONCLUSIONS Women in the e-waste recycling area had higher toxic element levels in the placenta and blood samples. More preventive measures were needed to reduce the risk of element exposure for mothers and fetuses in these areas.
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Affiliation(s)
- Yacui Luo
- Taizhou Municipal Center for Disease Control and Prevention, 608 Donghai Road, Jiaojiang District, Taizhou 318000, China
| | - Haijun Zhang
- Taizhou Municipal Center for Disease Control and Prevention, 608 Donghai Road, Jiaojiang District, Taizhou 318000, China
| | - Fangzhong Gui
- Taizhou Municipal Center for Disease Control and Prevention, 608 Donghai Road, Jiaojiang District, Taizhou 318000, China
| | - Jiayang Fang
- Taizhou Municipal Center for Disease Control and Prevention, 608 Donghai Road, Jiaojiang District, Taizhou 318000, China
| | - Haijiang Lin
- Taizhou Municipal Center for Disease Control and Prevention, 608 Donghai Road, Jiaojiang District, Taizhou 318000, China
| | - Danhong Qiu
- Taizhou Municipal Center for Disease Control and Prevention, 608 Donghai Road, Jiaojiang District, Taizhou 318000, China
| | - Lingfei Ge
- Luqiao School District, Taizhou Hospital, No.1 east of Tongyang Road, Luqiao District, Taizhou 318050, China
| | - Qiong Wang
- Luqiao Hospital of Traditional Chinese Medicine, No. 88 Yingbin Avenue, Luqiao District, Taizhou 318050, China
| | - Peiwei Xu
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Binjiang District, Hangzhou 310051, China
| | - Jun Tang
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Binjiang District, Hangzhou 310051, China.
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Orisakwe OE, Ikpeama EU, Orish CN, Ezejiofor AN, Okolo KO, Cirovic A, Cirovic A, Nwaogazie IL, Onoyima CS. Prosopis africana exerts neuroprotective activity against quaternary metal mixture-induced memory impairment mediated by oxido-inflammatory response via Nrf2 pathway. AIMS Neurosci 2024; 11:118-143. [PMID: 38988888 PMCID: PMC11230863 DOI: 10.3934/neuroscience.2024008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/04/2024] [Accepted: 04/12/2024] [Indexed: 07/12/2024] Open
Abstract
The beneficial effects of Prosopis africana (PA) on human health have been demonstrated; however, its protective effects against heavy metals (HM) are not yet understood. This study evaluated the potential neuroprotective effects of PA in the cerebral cortex and cerebellum. To accomplish this, we divided 35 albino Sprague Dawley rats into five groups. Group I did not receive either heavy metal mixture (HMM) or PA. Group II received a HMM of PbCl2 (20 mg/kg), CdCl2 (1.61 mg/kg), HgCl2 (0.40 mg/kg), and NaAsO3 (10 mg/kg) orally for a period of two months. Groups III, IV, and V received HMM along with PA at doses of 500, 1000, and 1500 mg/kg, respectively. PA caused decreased levels of HM accumulation in the cerebral cortex and cerebellum and improved performance in the Barnes maze and rotarod tests. PA significantly reduced levels of IL-6 and TNF-α. PA increased concentrations of SOD, CAT, GSH, and Hmox-1 and decreased the activities of AChE and Nrf2. In addition, levels of MDA and NO decreased in groups III, IV, and V, along with an increase in the number of live neurons. In conclusion, PA demonstrates a complex neuroprotective effect with the potential to alleviate various aspects of HM-induced neurotoxicity.
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Affiliation(s)
- Orish E Orisakwe
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
- Advanced Research Centre, European University of Lefke, Lefke, Northern Cyprus, TR-10 Mersin, Turkey
| | - Evelyn Utomoibor Ikpeama
- World Bank Africa Centre of Excellence in Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Chinna N Orish
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Anthonet N Ezejiofor
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Kenneth O Okolo
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Enugu State, University of Science & Technology, Nigeria
| | - Aleksandar Cirovic
- University of Belgrade, Faculty of Medicine, Institute of Anatomy, Belgrade, Serbia
| | - Ana Cirovic
- University of Belgrade, Faculty of Medicine, Institute of Anatomy, Belgrade, Serbia
| | - Ify L Nwaogazie
- World Bank Africa Centre of Excellence in Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt, PMB, 5323 Port Harcourt, Choba, Nigeria
| | - Chinekwu Samson Onoyima
- Dept. of Biochemistry, Faculty of Biological Sciences, University of Nigeria Nsukka, Enugu State, Nigeria
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Dack K, Huang P, Taylor CM, Rai D, Lewis SJ. Environmental and genetic predictors of whole blood mercury and selenium concentrations in pregnant women in a UK birth cohort. ENVIRONMENTAL ADVANCES 2024; 15:100469. [PMID: 38562418 PMCID: PMC10951965 DOI: 10.1016/j.envadv.2023.100469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 04/04/2024]
Abstract
There is evidence that tissue concentrations of mercury (Hg) and selenium (Se) are predicted by numerous dietary, sociodemographic, environmental, and genetic factors. This study aimed to estimate the relative importance of predictors of Hg and Se concentrations in blood samples taken from pregnant women. The Avon Longitudinal Study of Parents and Children (ALSPAC) in the UK measured whole blood Hg and Se concentrations in 3,972 pregnant women. We identified 30 potential predictors of Hg and 24 of Se, which were evaluated using cross-validated random forests to identify the optimal models for predictive power. The relative importance of individual variables was estimated by averaging the added-R2 per predictor. Linkage disequilibrium score regression was used to estimate the variance explained by genotype. A multivariable model of 14 predictors explained 22.4% of Hg variance (95% CI: 13.0 to 37.1), including 6.9% from blood Se and 3.2% from white fish consumption. There were 11 predictors which explained 15.3% of Se variance (CI: 8.9 to 25.9), including 6.4% from blood Hg, 1.3% from blood lead, and 1.3% from oily fish. Measured genetic variation explained 30% of Hg variance (CI: 8.4 to 51.5) and 37.5% of Se (CI: 10.4 to 64.5). A high proportion of Hg and Se variance could be explained from dietary, sociodemographic, metabolic, and genetic factors. Seafood consumption was less predictive of Hg than may be expected and other factors should be considered when determining risk of exposure. There was tentative evidence that genotype is a major contributor to Hg and Se variation, possibly by modifying the efficacy of internal metabolism.
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Affiliation(s)
- Kyle Dack
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Peiyuan Huang
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Caroline M Taylor
- Centre for Academic Child Health, Bristol Medical School, University of Bristol, Bristol, UK
| | - Dheeraj Rai
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Sarah J Lewis
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
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Anyachor CP, Orish CN, Ezejiofor AN, Cirovic A, Cirovic A, Ezealisiji KM, Patrick-Iwuanyanwu K, Thuppil V, Orisakwe OE. Ni and Al mixture amplifies cerebellar oxido-inflammatory responses, down regulates AChE and BDNF/NGF levels in motor impairment in male albino rats. J Trace Elem Med Biol 2023; 80:127318. [PMID: 37864919 DOI: 10.1016/j.jtemb.2023.127318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/27/2023] [Accepted: 10/09/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND Aluminum and nickel are potent neurotoxicants to which humans are constantly exposed. Previous studies have demonstrated that these two metals can affect the motor system, but their effects on the cerebellum, a central nervous system region with the highest number of neurons, have remained largely unexplored. Therefore, we conducted a study to investigate the adverse effects of Al, Ni, and Al+Ni in vivo. METHODS In our study, seven male Sprague Dawley rats per group were orally exposed to deionized water, 0.2 mg/kg of Ni, 1 mg/kg of Al, and 0.2 mg/kg of Ni + 1 mg/kg of Al (as a binary heavy metals mixture; HMM), respectively. RESULTS Ni, Al, and HMM exposed rats accumulated higher levels of Al and Ni compared to controls, and HMM treated animals had higher levels of Ca and Fe in the cerebellum (p < 0.05). Malondialdehyde (MDA) levels were significantly (p < 0.05) higher in the HMM, Ni, and Al treated groups compared to the control group that received deionized water. Superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), and glutathione peroxidase (GPx) activities were significantly (p < 0.05) reduced in the HMM, Ni, and Al treated groups compared to the control group that received deionized water. Ni, Al, and HMM significantly (p < 0.05) shortened the length of time of the grip in comparison to the control. Nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) levels were significantly decreased in the nickel, Al, and heavy metal mixture groups compared with the control group. Moreover, there was a significant decrease in the activity of acetylcholinesterase (AChE) and a increase in cyclooxygenase-2 (COX-2) activity in the Ni, Al, and HMM treated groups compared to the control group. CONCLUSION HMM exposed animals had significantly poorer performance in the Rotarod test (p < 0.05) than controls. Al and Ni induced impairment of cerebellar function at various levels.
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Affiliation(s)
- Chidinma P Anyachor
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323, Choba, Port Harcourt, Nigeria
| | - Chinna N Orish
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, University of Port Harcourt, PMB, 5323, Choba, Port Harcourt, Nigeria.
| | - Anthonet N Ezejiofor
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323, Choba, Port Harcourt, Nigeria
| | - Ana Cirovic
- University of Belgrade, Faculty of Medicine, Institute of Anatomy, Belgrade, Serbia
| | - Aleksandar Cirovic
- University of Belgrade, Faculty of Medicine, Institute of Anatomy, Belgrade, Serbia
| | - Kenneth M Ezealisiji
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Port Harcourt, PMB, 5323, Choba, Port Harcourt, Nigeria
| | - Kingsley Patrick-Iwuanyanwu
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323, Choba, Port Harcourt, Nigeria
| | | | - Orish E Orisakwe
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323, Choba, Port Harcourt, Nigeria.
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Tahir U, Zameer M, Ali Q, Rafique A, Ali SM, Arif MU, Nawaz I, Malook SU, Ali D. Toxicity assessment of heavy metal (Pb) and its bioremediation by potential bacterial isolates. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1047. [PMID: 37589892 DOI: 10.1007/s10661-023-11632-9] [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: 02/20/2023] [Accepted: 07/24/2023] [Indexed: 08/18/2023]
Abstract
Lead (Pb) is a non-essential metal with high toxicity, is persistent, is not biodegradable, and has no known biological function. It is responsible for severe health and environmental issues that need appropriate remediation. Therefore, microbes have thrived in a lead-contaminated environment without exhibiting any negative impacts. The present study aimed to examine the toxic effects of lead on animals and the isolation, identification, and characterization of lead-resistant bacterial strains and their biodegradation potential. After oral administration of lead for 4 weeks, mice showed an elevated level of leukocytes and a decrease in TEC, Hb, PCV, MCV, MCH, and MCHC levels. However, a decline in body weight and inflammation and oxidative stress was observed in liver tissues. To remediate toxic heavy metal, lead-resistant bacterial strains were isolated, among which Enterobacter exhibited maximum degradation potential at high lead concentrations. It was identified by molecular basis and after 16S rRNA sequencing, and 99% resemblance was observed with Enterobacter cloacae. FT-IR analysis of the bacteria illustrated the presence of functional groups, including hydroxyl, carboxyl group, sulfide, and amino groups, on the bacterial cell surface involved in the adsorption of lead. Moreover, electron microscopy (SEM) revealed the morphological and physiochemical changes in the bacterial cell after biosorption, indicating the interaction of Cu ions with functional groups. To summarize, the findings show the highly toxic effects of lead on animals and humans and its effective biodegradation by the bacterial strains in the lead-contaminated environment. This biological strategy can be an ideal alternative to remediate heavy metals from contaminated sites to clean up the environment.
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Affiliation(s)
- Usaal Tahir
- Institute of Molecular Biology and Biotechnology, The University of Lahore, 1 KM Defence Road, Lahore, Pakistan.
| | - Mariam Zameer
- Institute of Molecular Biology and Biotechnology, The University of Lahore, 1 KM Defence Road, Lahore, Pakistan
| | - Qurban Ali
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences, University of the Punjab, PO BOX 54590, Lahore, Pakistan.
| | - Ayesha Rafique
- Institute of Molecular Biology and Biotechnology, The University of Lahore, 1 KM Defence Road, Lahore, Pakistan
| | - Syeda Maham Ali
- Institute of Molecular Biology and Biotechnology, The University of Lahore, 1 KM Defence Road, Lahore, Pakistan
| | - Muhammad Umer Arif
- Institute of Molecular Biology and Biotechnology, The University of Lahore, 1 KM Defence Road, Lahore, Pakistan
| | - Imtiaz Nawaz
- Institute of Molecular Biology and Biotechnology, The University of Lahore, 1 KM Defence Road, Lahore, Pakistan
| | - Saif Ul Malook
- Department of Entomology & Nematology, University of Florida, Gainesville, USA
| | - Daoud Ali
- Department of Zoology, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
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Xu X, Wang YQ, Dong CY, Hu CP, Zhang LN, Gao ZY, Li MM, Wang SS, Yan CH. Determinants affecting the blood mercury levels of preschool children in Shanghai, China: A cross-sectional study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:90980-90992. [PMID: 37468774 DOI: 10.1007/s11356-023-28035-5] [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: 11/10/2022] [Accepted: 05/29/2023] [Indexed: 07/21/2023]
Abstract
Infants and children are vulnerable to mercury (Hg)-induced toxicity, which has detrimental effects on their neurological development. This study measured blood Hg levels (BMLs) and identified potential factors influencing BMLs, including demographic and socioeconomic factors, lifestyle, and daily dietary habits, among 0 to 7-year-old children in Shanghai. Our study recruited 1474 participants, comprising 784 boys and 690 girls. Basic demographic and lifestyle information were obtained and blood Hg were analyzed using the Direct Mercury Analyzer 80. The blood Hg concentrations of children in Shanghai ranged from 0.01 to 17.20 μg/L, with a median concentration of 1.34 μg/L. Older age, higher familial socioeconomic status, higher residential floors, and a higher frequency of consuming aquatic products, rice, vegetables, and formula milk were identified as risk factors. Other potential influencing factors including the mother's reproductive history (gravidity and parity), smoking (passive smoking), supplementation of fish oil and calcium need to be further investigated. These findings can be useful in establishing appropriate interventions to prevent children's high blood Hg concentrations in Shanghai and other similar metropolitan cities.
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Affiliation(s)
- Xi Xu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.1665, Kongjiang Road, Shanghai, 200092, China
| | - Yu-Qing Wang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.1665, Kongjiang Road, Shanghai, 200092, China
| | - Chen-Yin Dong
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, China
| | - Chun-Ping Hu
- Honghui Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China
| | - Li-Na Zhang
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Zhen-Yan Gao
- Department of Gynecology & Obstetrics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min-Ming Li
- Children's Health Department, Shanghai Center for Women and Children's Health, Shanghai, China
| | - Su-Su Wang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.1665, Kongjiang Road, Shanghai, 200092, China
| | - Chong-Huai Yan
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.1665, Kongjiang Road, Shanghai, 200092, China.
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Zeng H, Dong B, Wang N, Xu W, Guo L, Liu J, Fang B, Zhang L, Wang Q, Yang W, Wang M. The effects of metals and mixture exposure on lung function and the potential mediating effects of oxidative stress. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:2263-2275. [PMID: 35925433 DOI: 10.1007/s10653-022-01339-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/17/2022] [Indexed: 06/15/2023]
Abstract
Exposure to metals is associated with lung function decline. However, limited data are available about effects of co-exposure of metals on lung function. Additionally, the mechanism of the association between metals and lung function remains unclear. We conducted a longitudinal panel study in 2017-2018 among 45 healthy college students. Urinary 15 metals, lung function, biomarkers of oxidative stress and inflammation of participants were measured. Linear mixed effect (LME) and Bayesian kernel machine regression (BKMR) models were applied to explore the associations of urinary metals and mixture with lung function. Furthermore, we analyzed the mediating effect of biomarkers in the association between urinary metals and lung function. LME models showed the negative associations of aluminum (Al), vanadium (V), manganese (Mn), cobalt (Co), nickel (Ni), cadmium (Cd) or antimony (Sb) with Forced vital capacity (FVC), and V, Co, Ni, and Sb with Forced expiratory volume in one second (FEV1). BKMR models indicated the overall effect of metals mixture was negatively associated with FEV1 and FVC; urinary Sb was identified as the major contributor to decreased FVC and FEV1. Urinary 8-hydroxydeoxyguanosine mediated the association of Al, Mn, or Sb with FVC and the relationship of V with FEV1. The results revealed the longitudinal dose-response relationships of urinary metals with pulmonary function among healthy adults. Oxidative stress may be the underlying mechanisms of metals exposure associated with decreased lung function. Due to the small sample size, the interpretation of the results of this study should be cautious, and more studies are needed to verify the findings of this study.
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Affiliation(s)
- Hao Zeng
- Affiliated Huaihe Hospital, Henan University, 115 Ximen street, Kaifeng, 475000, Henan, China
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Bohua Dong
- Affiliated Hospital, North China University of Science and Technology, Tangshan, 063000, China
| | - Nan Wang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Wenzhe Xu
- Tangshan Environmental Monitoring Center, No.54, Jianshe North Road, Lubei, Tangshan, 063210, Hebei, China
| | - Linan Guo
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
| | - Jiajia Liu
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, China
| | - Bo Fang
- Affiliated Huaihe Hospital, Henan University, 115 Ximen street, Kaifeng, 475000, Henan, China
| | - Lei Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Qian Wang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China.
| | - Wenqi Yang
- Affiliated Hospital, North China University of Science and Technology, Tangshan, 063000, China
| | - Manman Wang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan, 063210, Hebei, China
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Sanne I, Bjørke-Monsen AL. Dietary behaviors and attitudes among Norwegian medical students. BMC MEDICAL EDUCATION 2023; 23:220. [PMID: 37024871 PMCID: PMC10080805 DOI: 10.1186/s12909-023-04194-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Dietary patterns and beliefs are influenced by socioeconomic status, cultural influences, as well as medical advice, social media and marketing. Medical doctors are expected to provide correct, updated and non-biased nutritional advice to their patients, but their own dietary behaviors and attitudes may influence nutritional counselling. METHODS We have investigated dietary habits and food attitudes among medical students by using an anonymous survey distributed to all students at the Medical Faculty, University of Bergen, Norway. The survey included a 36-item questionnaire covering information about demographics, former and current diet, use of nutritional supplements, tobacco and alcohol, in addition to food attitudes and nutritional knowledge. Descriptive statistics were calculated for each survey item. RESULTS Of the 880 students, 394 responded to the survey. Although 90% of the students were omnivores, the majority had a negative attitude towards meat, and considered fish to be healthier than meat. Significantly more women than men reported use of a special diet and excluded meat from their diet, even if they were omnivores. The most frequently used supplement was cod liver oil or omega 3 fatty acids. CONCLUSION The medical students' diet and food attitudes not only reflect current health recommendations, but also popular beliefs and marketing in Norway. Curriculum planners should make the students capable of recognizing the influence of social media, marketing and medicine-food industry interactions, to ensure relevant nutrition knowledge for future doctors.
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Affiliation(s)
- Ingebjørg Sanne
- Department of Hematology and Oncology, Stavanger University Hospital, Stavanger, Norway
| | - Anne-Lise Bjørke-Monsen
- Laboratory of Medical Biochemistry, Innlandet Hospital Trust, Lillehammer, Norway.
- Laboratory of Medical Biochemistry, Førde Central Hospital, Førde, Norway.
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, 5021, Norway.
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Quist AJL, Van Horne YO, Farzan SF, Johnston JE. Metal Exposures in Residents Living Near an Urban Oil Drilling Site in Los Angeles, California. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:15981-15989. [PMID: 36288551 PMCID: PMC9670842 DOI: 10.1021/acs.est.2c04926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 10/18/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Urban environmental justice communities are potentially exposed to multiple toxic metals, through contaminated air, soil, water, and food. However, information on metals and their sources is lacking. This study uses non-negative matrix factorization (NMF) in a community-based participatory research study to identify potential sources and to understand how these metals cluster in a population near an urban oil drilling site. We recruited 203 Latinx, Black, and Asian residents who lived within 1 km of an oil drilling site in south Los Angeles and collected toenail clippings to assess exposure to arsenic (As), cadmium (Cd), mercury (Hg), manganese (Mn), nickel (Ni), lead (Pb), and antimony (Sb). Using NMF, we identified three clusters based on concentrations in the participants' toenails. As, Cd, Pb, and Sb grouped together, indicative of an industrial source. A second grouping was composed of Ni and Mn, which may be related to oil drilling. We also identified a third source factor predominantly driven by Hg and As, which may arise from dietary sources. Utilizing NMF, a dimension reduction method, we identified a source factor high in Ni and Mn in residents living in a neighborhood near an active oil drilling site.
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Affiliation(s)
- Arbor J. L. Quist
- Department of Population
and Public Health Sciences, Keck School of Medicine, University of Southern California, 1845 N Soto St, Los Angeles, California90032, United States
| | - Yoshira Ornelas Van Horne
- Department of Population
and Public Health Sciences, Keck School of Medicine, University of Southern California, 1845 N Soto St, Los Angeles, California90032, United States
| | - Shohreh F. Farzan
- Department of Population
and Public Health Sciences, Keck School of Medicine, University of Southern California, 1845 N Soto St, Los Angeles, California90032, United States
| | - Jill E. Johnston
- Department of Population
and Public Health Sciences, Keck School of Medicine, University of Southern California, 1845 N Soto St, Los Angeles, California90032, United States
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Liu M, Li M, Guo W, Zhao L, Yang H, Yu J, Liu L, Fang Q, Lai X, Yang L, Zhu K, Dai W, Mei W, Zhang X. Co-exposure to priority-controlled metals mixture and blood pressure in Chinese children from two panel studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 306:119388. [PMID: 35526645 DOI: 10.1016/j.envpol.2022.119388] [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: 04/26/2022] [Accepted: 04/29/2022] [Indexed: 06/14/2023]
Abstract
Metals may affect adversely cardiovascular system, but epidemiological evidence on the associations of priority-controlled metals including antimony (Sb), arsenic (As), cadmium, lead, and thallium with children's blood pressure (BP) was scarce and inconsistent. We conducted two panel studies with 3 surveys across 3 seasons among 144 and 142 children aged 4-12 years in Guangzhou and Weinan, respectively. During each seasonal survey, urine samples were collected for 4 consecutive days and BP was measured on the 4th day. We obtained 786 BP values and urinary metals measurements at least once within 4 days, while 773, 596, 612, and 754 urinary metals measurements were effective on the health examination day (Lag 0), and the 1st, 2nd, and 3rd day preceding BP measurement (Lag 1, lag 2 and lag 3), respectively. We used linear mixed-effect models, generalized estimating equations and multiple informant models to assess the associations of individual metal at each lag day and accumulated lag day (4 days averaged, lag 0-3) with BP and hypertension, and Bayesian Kernel Machine Regression to evaluate the relations of metals mixture at lag 0-3 and BP outcomes. We found Sb was positively and consistently related to systolic BP (SBP), mean arterial pressure (MAP), and odds of having hypertension within 4 days, which were the strongest at lag 0 and declined over time. And such relationships at lag 0-3 showed in a dose-response manner. Meanwhile, Sb was the only contributor to the relations of mixture with SBP, MAP, and odds of having hypertension. Also, synergistic interaction between Sb and As was significant. In addition, modification effect of passive smoking status on the association of Sb and SBP was more evident in passive smokers. Accordingly, urinary Sb was consistently and dose-responsively associated with increased BP and hypertension, of which Sb was the major contributor among children.
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Affiliation(s)
- Miao Liu
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Meng Li
- School of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Wenting Guo
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lei Zhao
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Department of Public Health, Medical College of Qinghai University, Xining, Qinghai, China
| | - Huihua Yang
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jie Yu
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Linlin Liu
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qin Fang
- Department of Medical affairs, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai, Guangdong, China
| | - Xuefeng Lai
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Liangle Yang
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kejing Zhu
- Zhuhai Center for Disease Control and Prevention, Zhuhai, Guangdong, China
| | - Wencan Dai
- Zhuhai Center for Disease Control and Prevention, Zhuhai, Guangdong, China
| | - Wenhua Mei
- Zhuhai Center for Disease Control and Prevention, Zhuhai, Guangdong, China
| | - Xiaomin Zhang
- Department of Occupational and Environmental Health, Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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11
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Paduraru E, Iacob D, Rarinca V, Rusu A, Jijie R, Ilie OD, Ciobica A, Nicoara M, Doroftei B. Comprehensive Review Regarding Mercury Poisoning and Its Complex Involvement in Alzheimer's Disease. Int J Mol Sci 2022; 23:1992. [PMID: 35216107 PMCID: PMC8879904 DOI: 10.3390/ijms23041992] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/06/2022] [Accepted: 02/08/2022] [Indexed: 02/04/2023] Open
Abstract
Mercury (Hg) is considered one of the most widespread toxic environmental pollutants, which seems to have multiple effects on organisms even at low concentrations. It has a critical role in many health problems with harmful consequences, with Hg primarily targeting the brain and its components, such as the central nervous system (CNS). Hg exposure was associated with numerous CNS disorders that frequently trigger Alzheimer's disease (AD). Patients with AD have higher concentrations of Hg in blood and brain tissue. This paper aims to emphasize a correlation between Hg and AD based on the known literature in the occupational field. The outcome shows that all these concerning elements could get attributed to Hg. However, recent studies did not investigate the molecular level of Hg exposure in AD. The present review highlights the interactions between Hg and AD in neuronal degenerations, apoptosis, autophagy, oxidative stress (OS), mitochondrial malfunctions, gastrointestinal (GI) microflora, infertility and altering gene expression.
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Affiliation(s)
- Emanuela Paduraru
- Doctoral School of Geosciences, Faculty of Geography and Geology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, 700505 Iasi, Romania; (E.P.); (D.I.); (V.R.); (A.R.)
| | - Diana Iacob
- Doctoral School of Geosciences, Faculty of Geography and Geology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, 700505 Iasi, Romania; (E.P.); (D.I.); (V.R.); (A.R.)
| | - Viorica Rarinca
- Doctoral School of Geosciences, Faculty of Geography and Geology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, 700505 Iasi, Romania; (E.P.); (D.I.); (V.R.); (A.R.)
| | - Angelica Rusu
- Doctoral School of Geosciences, Faculty of Geography and Geology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, 700505 Iasi, Romania; (E.P.); (D.I.); (V.R.); (A.R.)
| | - Roxana Jijie
- Department of Exact and Natural Sciences, Institute of Interdisciplinary Research, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, 700505 Iasi, Romania;
| | - Ovidiu-Dumitru Ilie
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, 700505 Iasi, Romania;
| | - Alin Ciobica
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, 700505 Iasi, Romania;
- Center of Biomedical Research, Romanian Academy, No 8, Carol I Avenue, 700506 Iasi, Romania
- Academy of Romanian Scientists, No 54, Independence Street, Sector 5, 050094 Bucharest, Romania
| | - Mircea Nicoara
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, 700505 Iasi, Romania;
| | - Bogdan Doroftei
- Faculty of Medicine, University of Medicine and Pharmacy Grigore T. Popa, No 16, University Street, 700115 Iasi, Romania;
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12
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Simić A, Hansen AF, Syversen T, Lierhagen S, Ciesielski TM, Romundstad PR, Midthjell K, Åsvold BO, Flaten TP. Trace elements in whole blood in the general population in Trøndelag County, Norway: The HUNT3 Survey. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150875. [PMID: 34634345 DOI: 10.1016/j.scitotenv.2021.150875] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/04/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Biomonitoring of a cohort within a large health survey can provide reliable information on trace element status. The main aims of this study were 1) to determine the concentrations of 28 trace elements in whole blood samples from the general population of the Nord-Trøndelag region, Norway, and 2) to investigate how trace element concentrations vary with geographical area, lifestyle, and socio-demographic factors. METHODS Whole blood samples were collected in the third survey of the Trøndelag Health Survey (HUNT3), a large population-based study in Norway. In total, 1011 whole blood samples from individuals aged 20-91 years were analyzed using high resolution inductively coupled plasma-mass spectrometry (HR-ICP-MS). We compared trace element concentrations (As, B, Be, Br, Ca, Cd, Cr, Cs, Cu, Ga, Au, In, Fe, Pb, Hg, Tl, Mg, Mn, Mo, Ni, Rb, Sc, Se, Ag, Sr, Sn, W and Zn) between three geographical areas (coastal, fjord/town, inland/mountain) using multivariable linear regression and assessed differences in trace element concentrations with socio-demographic and lifestyle factors using general linear models. RESULTS Trace element concentrations were generally comparable to levels reported in other recent studies and suggest low exposure to toxic trace elements in the region. We found geographical differences in concentrations of 19 trace elements. As, Br, Hg, and Se concentrations were higher on the coast compared to the fjord/town and inland/mountain areas, suggesting that the marine environment is an important source of exposure for these trace elements. In addition, socio-demographic and lifestyle characteristics, particularly age and sex, were associated with differences in trace element concentrations. CONCLUSIONS We report concentrations of 28 trace elements in the general population of a rural region with low exposure to pollution. Whole blood concentrations of trace elements varied with geographical area, the participants' lifestyle, and socio-demographic characteristics, highlighting the importance of considering these factors when evaluating trace element status in a population.
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Affiliation(s)
- Anica Simić
- Department of Chemistry, NTNU, Norwegian University of Science and Technology, Trondheim, Norway.
| | - Ailin Falkmo Hansen
- Department of Chemistry, NTNU, Norwegian University of Science and Technology, Trondheim, Norway; K.G. Jebsen Center for Genetic Epidemiology, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
| | - Tore Syversen
- Department of Neuroscience, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
| | - Syverin Lierhagen
- Department of Chemistry, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Pål Richard Romundstad
- Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
| | - Kristian Midthjell
- HUNT Research Center, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Levanger, Norway
| | - Bjørn Olav Åsvold
- Department of Chemistry, NTNU, Norwegian University of Science and Technology, Trondheim, Norway; HUNT Research Center, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Levanger, Norway; Department of Endocrinology, Clinic of Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Trond Peder Flaten
- Department of Chemistry, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
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13
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Margetaki K, Vafeiadi M, Kampouri M, Roumeliotaki T, Karakosta P, Daraki V, Kogevinas M, Hu H, Kippler M, Chatzi L. Associations of exposure to cadmium, antimony, lead and their mixture with gestational thyroid homeostasis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 289:117905. [PMID: 34371266 DOI: 10.1016/j.envpol.2021.117905] [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: 04/01/2021] [Revised: 06/29/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
Maintaining thyroid homeostasis during pregnancy is vital for fetal development. The few studies that have investigated associations between metal exposure and gestational thyroid function have yielded mixed findings. To evaluate the association of exposure to a mixture of toxic metals with thyroid parameters in 824 pregnant women from the Rhea birth cohort in Crete, Greece. Concentrations of three toxic metals [cadmium (Cd), antimony (Sb), lead (Pb)] and iodine were measured in urine using inductively coupled plasma mass spectrometry and thyroid hormones [Thyroid Stimulating Hormone (TSH), free thyroxine (fT4), and free triiodothyronine (fT3)] were measured in serum in early pregnancy. Associations of individual metals with thyroid parameters were assessed using adjusted regression models, while associations of the metal mixture with thyroid parameters were assessed using Bayesian Kernel Machine Regression (BKMR).Women with high (3rd tertile) concentrations of urinary Cd, Sb and Pb, respectively, had 13.3 % (95%CI: 2.0 %, 23.2 %), 12.5 % (95%CI: 1.8 %, 22.0 %) and 16.0 % (95%CI: 5.7 %, 25.2 %) lower TSH compared to women with low concentrations (2nd and 1st tertile). In addition, women with high urinary Cd had 2.2 % (95%CI: 0.0 %, 4.4 %) higher fT4 and 4.0 % (95%CI: -0.1 %, 8.1 %) higher fT3 levels, and women with high urinary Pb had 4 % (95%CI: 0.2 %, 8.0 %) higher fT3 levels compared to women with low exposure. The negative association of Cd with TSH persisted only when iodine sufficiency was unfavorable. BKMR attested that simultaneous exposure to toxic metals was associated with decreased TSH and increased fT3 and revealed a potential synergistic interaction of Cd and Pb in association with TSH. The present results suggest that exposure to toxic metals even at low levels can alter gestational thyroid homeostasis.
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Affiliation(s)
- Katerina Margetaki
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - Marina Vafeiadi
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece.
| | - Mariza Kampouri
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - Theano Roumeliotaki
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - Polyxeni Karakosta
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - Vasiliki Daraki
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - Manolis Kogevinas
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Howard Hu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, USA
| | - Maria Kippler
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Leda Chatzi
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, USA
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Lead (Pb) and neurodevelopment: A review on exposure and biomarkers of effect (BDNF, HDL) and susceptibility. Int J Hyg Environ Health 2021; 238:113855. [PMID: 34655857 DOI: 10.1016/j.ijheh.2021.113855] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 12/13/2022]
Abstract
Lead (Pb) is a ubiquitous environmental pollutant and a potent toxic compound. Humans are exposed to Pb through inhalation, ingestion, and skin contact via food, water, tobacco smoke, air, dust, and soil. Pb accumulates in bones, brain, liver and kidney. Fetal exposure occurs via transplacental transmission. The most critical health effects are developmental neurotoxicity in infants and cardiovascular effects and nephrotoxicity in adults. Pb exposure has been steadily decreasing over the past decades, but there are few recent exposure data from the general European population; moreover, no safe Pb limit has been set. Sensitive biomarkers of exposure, effect and susceptibility, that reliably and timely indicate Pb-associated toxicity are required to assess human exposure-health relationships in a situation of low to moderate exposure. Therefore, a systematic literature review based on PubMed entries published before July 2019 that addressed Pb exposure and biomarkers of effect and susceptibility, neurodevelopmental toxicity, epigenetic modifications, and transcriptomics was conducted. Finally included were 58 original papers on Pb exposure and 17 studies on biomarkers. The biomarkers that are linked to Pb exposure and neurodevelopment were grouped into effect biomarkers (serum brain-derived neurotrophic factor (BDNF) and serum/saliva cortisol), susceptibility markers (epigenetic markers and gene sequence variants) and other biomarkers (serum high-density lipoprotein (HDL), maternal iron (Fe) and calcium (Ca) status). Serum BDNF and plasma HDL are potential candidates to be further validated as effect markers for routine use in HBM studies of Pb, complemented by markers of Fe and Ca status to also address nutritional interactions related to neurodevelopmental disorders. For several markers, a causal relationship with Pb-induced neurodevelopmental toxicity is likely. Results on BDNF are discussed in relation to Adverse Outcome Pathway (AOP) 13 ("Chronic binding of antagonist to N-methyl-D-aspartate receptors (NMDARs) during brain development induces impairment of learning and memory abilities") of the AOP-Wiki. Further studies are needed to validate sensitive, reliable, and timely effect biomarkers, especially for low to moderate Pb exposure scenarios.
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15
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Cowell W, Colicino E, Levin-Schwartz Y, Enlow MB, Amarasiriwardena C, Andra SS, Gennings C, Wright RO, Wright RJ. Prenatal metal mixtures and sex-specific infant negative affectivity. Environ Epidemiol 2021; 5:e147. [PMID: 33870019 PMCID: PMC8043734 DOI: 10.1097/ee9.0000000000000147] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 03/04/2021] [Indexed: 11/27/2022] Open
Abstract
Prenatal exposure to metals has been associated with a range of adverse neurocognitive outcomes; however, associations with early behavioral development are less well understood. We examined joint exposure to multiple co-occurring metals in relation to infant negative affect, a stable temperamental trait linked to psychopathology among children and adults. METHODS Analyses included 308 mother-infant pairs enrolled in the PRISM pregnancy cohort. We measured As, Ba, Cd, Cs, Cr, Pb, and Sb in urine, collected on average during late pregnancy, by ICP-MS. At age 6 months, we assessed negative affect using the Infant Behavior Questionnaire-Revised. We used Weighted Quantile Sum (WQS) regression with repeated holdout validation to estimate the joint association between the metals and global negative affectivity, as well as four subdomains (Fear, Sadness, Distress to Limitations, and Falling Reactivity). We also tested for a sex interaction with estimated stratified weights. RESULTS In adjusted models, urinary metals were associated with higher scores on the Fear scale (βWQS = 0.20, 95% confidence interval [CI]: 0.09, 0.30), which captures behavioral inhibition, characterized by startle or distress to sudden changes in the environment and inhibited approach to novelty. We observed a significant sex interaction (95% CI for the cross-product term: -0.19, -0.01), and stratified weights showed girls (61.6%) contributed substantially more to the mixture effect compared with boys (38.4%). Overall, Ba contributed the greatest mixture weight (22.5%), followed by Cs (14.9%) and As (14.6%). CONCLUSIONS Prenatal exposure to metals was associated with increased infant scores on the temperamental domain of fear, with girls showing particular sensitivity.Key words: Prenatal; Metals; Mixtures; Temperament; Infancy; Negative affect.
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Affiliation(s)
- Whitney Cowell
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Elena Colicino
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Yuri Levin-Schwartz
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Michelle Bosquet Enlow
- Department of Psychiatry, Boston Children’s Hospital, Boston, MA
- Department of Psychiatry, Harvard Medical School, Boston, MA
| | - Chitra Amarasiriwardena
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Syam S. Andra
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Chris Gennings
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY
- Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Robert O. Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY
- Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Rosalind J. Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY
- Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, NY
- Kravis Children’s Hospital, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
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16
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Bjorke-Monsen AL, Varsi K, Averina M, Brox J, Huber S. Perfluoroalkyl substances (PFASs) and mercury in never-pregnant women of fertile age: association with fish consumption and unfavorable lipid profile. BMJ Nutr Prev Health 2020; 3:277-284. [PMID: 33521539 PMCID: PMC7841832 DOI: 10.1136/bmjnph-2020-000131] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/25/2020] [Accepted: 09/14/2020] [Indexed: 12/31/2022] Open
Abstract
Objectives To examine concentrations of perfluoroalkyl substances (PFASs) and lifestyle factors that may contribute to higher levels of pollutants in never-pregnant women of fertile age. Design Observational cross-sectional study. Setting Participants were recruited among employees and students at Haukeland University Hospital and the University of Bergen, Norway. Participants Healthy, never-pregnant Norwegian women (n=158) of fertile age (18-39 years). Outcomes Concentrations of 20 different PFASs, mercury (Hg), lead, cadmium, total, high-density lipoprotein and low-density lipoprotein (LDL) cholesterol, in addition to self-reported data on dietary intake. Results Seven PFASs were detected in more than 95% of the women. Women aged 30-39 years had higher concentrations of sum PFAS compared with younger women. Serum PFASs were significantly intercorrelated (rho: 0.34-0.98, p<0.001) and six of them were significantly correlated to whole blood Hg (rho: 0.21-0.74, p<0.01). Fish consumption was the strongest predictor for most serum PFASs and for whole blood Hg. Fish consumption and serum perfluorooctanesulfonic acid (PFOS) concentrations were both positively associated with serum total and LDL cholesterol, established risk factors for cardiovascular disease. Conclusions The majority of Norwegian never-pregnant women of fertile age had a mixture of seven different PFASs and Hg detected in their blood. PFAS concentrations were higher in older women and associated with fish intake. As the mean age of women at first birth is increasing, several factors require further consideration including diet, as this may influence the burden of PFAS to the next generation. Trial registration number ClinicalTrials.gov ID: NCT03272022, Unique Protocol ID: 2011/2447, Regional Committee for Medical Research Ethics West (2011/2447), 12 January 2012.
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Affiliation(s)
- Anne-Lise Bjorke-Monsen
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Kristin Varsi
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Maria Averina
- Department of Laboratory Medicine, University Hospital of North Norway, Tromso, Norway.,Department of Community Medicine, UiT The Arctic University of Norway, Tromso, Norway
| | - Jan Brox
- Department of Laboratory Medicine, University Hospital of North Norway, Tromso, Norway.,Department of Community Medicine, UiT The Arctic University of Norway, Tromso, Norway
| | - Sandra Huber
- Department of Laboratory Medicine, University Hospital of North Norway, Tromso, Norway
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17
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Ilmiawati C, Reza M, Yanni M, Rusjdi DA. Blood Cd levels and carotid intima-media thickness in young adults living in Padang, Indonesia. BMC Res Notes 2020; 13:202. [PMID: 32252819 PMCID: PMC7137246 DOI: 10.1186/s13104-020-05042-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/25/2020] [Indexed: 02/08/2023] Open
Abstract
Objective Cd exposure is a non-traditional risk factor of cardiovascular disease and mortality by promoting the development of atherosclerosis. The development of atherosclerosis can be monitored non-invasively by measuring carotid intima-media thickness (CIMT). This study aimed to measure the level of blood Cd and other factors known to be associated with CIMT, measured at the segment of common carotid artery (CCA) and of internal carotid artery (ICA), in young adults from Padang, West Sumatera, Indonesia, and we analyzed whether blood Cd is a predictor of CIMT. Results We recruited 156 subjects. Median blood Cd level was 0.61 μg/L (range 0.01–5.96 μg/L), with no difference in male compared to female subjects (Mann–Whitney U test, p = 0.60). Multiple regression analysis showed that sex is the predictor of CCA IMT (adjusted R2 = 0.219; β = −0.438 [95% CI − 0.662, − 0.214]; p < 0.001) and ICA IMT (adjusted R2 = 0.165; β = − 0.529 [95% CI − 0.761, − 0.297]; p < 0.001). Blood Cd was not a predictor of CCA IMT (adjusted R2 = 0.219; β = − 0.101 [95% CI − 0.257, 0.055]; p = 0.203) and ICA IMT (adjusted R2 = 0.165; β = − 0.055 [95% CI − 0.217, 0.107]; p = 0.503) in young adults from Padang, Indonesia.
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Affiliation(s)
- Cimi Ilmiawati
- Department of Pharmacology, Faculty of Medicine, Andalas University, Padang, West Sumatra, Indonesia. .,Division of Environmental Toxicology, Department of Pharmacology, Faculty of Medicine, Andalas University, Main Campus at Limau Manis, Gedung A Lantai 1, Pauh, Padang, West Sumatra, 25166, Indonesia.
| | - Mohamad Reza
- Department of Biology, Faculty of Medicine, Andalas University, Padang, West Sumatra, Indonesia
| | - Mefri Yanni
- Department of Cardiology, Faculty of Medicine, Andalas University, Padang, West Sumatra, Indonesia
| | - Dina Arfiani Rusjdi
- Department of Radiology, Faculty of Medicine, Andalas University, Padang, West Sumatra, Indonesia
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18
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Joint Toxicity of a Multi-Heavy Metal Mixture and Chemoprevention in Sprague Dawley Rats. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17041451. [PMID: 32102388 PMCID: PMC7068392 DOI: 10.3390/ijerph17041451] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/20/2020] [Accepted: 02/20/2020] [Indexed: 11/16/2022]
Abstract
To explore the joint toxicity and bio-accumulation of multi-heavy metals and potential chemoprevention strategies, Male Sprague Dawley (SD) rats (n = 30) were treated orally once a week for six months with 500mg/kg•bw of eight heavy metals which were commonly identified in aquatic products in the Ningbo area including chromium, manganese, nickel, copper, zinc, cadmium, mercury, and lead. At the same time, 200mg/kg•bw of epigallocatechin-3-gallate (EGCG), trisodium citrate dihydrate (TCD) or glutathione (GSH) were administered to evaluate their antagonistic effects against adverse effects of multi-heavy metal mixture. The Morris water maze test was used to evaluate spatial learning and memory in the treated rats. Then the rats were anesthetized by pentobarbital sodium (40 mg/kg•bw) to obtain blood samples for biochemical analysis and organs (heart, liver, spleen, lungs, kidneys, brain, testis) to be conducted for biopsy and organ coefficients. Inductively coupled plasma mass spectrometer (ICP-MS) was used to analyze the concentrations of heavy metals. Results indicated that six months of exposure to a multi-heavy metal mixture under this experimental dosage resulted in accumulation in organs and adverse effects on the blood, reproductive system, and liver function. EGCG, TCD or GSH all showed certain chemoprevention effects against the joint toxicity induced by the multi-heavy metal mixture and indicated alleviation and the potential mechanism that also included the promotion of excretion of metals to which animals were exposed.
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Averina M, Hervig T, Huber S, Kjær M, Kristoffersen EK, Bolann B. Environmental pollutants in blood donors: The multicentre Norwegian donor study. Transfus Med 2020; 30:201-209. [DOI: 10.1111/tme.12662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Maria Averina
- Department of Laboratory MedicineUniversity Hospital of North Norway Tromsø Norway
- Department of Community Medicine, Faculty of Health SciencesUiT The Arctic University of Norway Tromsø Norway
| | - Tor Hervig
- Department of Clinical ScienceUniversity of Bergen, Norway
- Laboratory of Immunology and Transfusion MedicineHaugesund Hospital Haugesund Norway
| | - Sandra Huber
- Department of Laboratory MedicineUniversity Hospital of North Norway Tromsø Norway
| | | | - Einar K. Kristoffersen
- Department of Clinical ScienceUniversity of Bergen, Norway
- Department of Immunology and Transfusion MedicineHaukeland University Hospital Bergen Norway
| | - Bjørn Bolann
- Department of Clinical ScienceUniversity of Bergen, Norway
- Department of Medical Biochemistry and PharmacologyHaukeland University Hospital Bergen Norway
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Barn P, Gombojav E, Ochir C, Boldbaatar B, Beejin B, Naidan G, Galsuren J, Legtseg B, Byambaa T, Hutcheon JA, Janes C, Janssen PA, Lanphear BP, McCandless LC, Takaro TK, Venners SA, Webster GM, Palmer CD, Parsons PJ, Allen RW. Coal smoke, gestational cadmium exposure, and fetal growth. ENVIRONMENTAL RESEARCH 2019; 179:108830. [PMID: 31678728 DOI: 10.1016/j.envres.2019.108830] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/15/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Gestational cadmium exposure may impair fetal growth. Coal smoke has largely been unexplored as a source of cadmium exposure. We investigated the relationship between gestational cadmium exposure and fetal growth, and assessed coal smoke as a potential source of airborne cadmium, among non-smoking pregnant women in Ulaanbaatar, Mongolia, where coal combustion in home heating stoves is a major source of outdoor and indoor air pollution. METHODS This observational study was nested within the Ulaanbaatar Gestation and Air Pollution Research (UGAAR) study, a randomized controlled trial of portable high efficiency particulate air (HEPA) filter air cleaner use during pregnancy, fetal growth, and early childhood development. We measured third trimester blood cadmium concentrations in 374 out of 465 participants who had a live birth. We used multiple linear and logistic regression to assess the relationships between log2-transformed maternal blood cadmium concentrations and birth weight, length, head circumference, ponderal index, low birth weight, small for gestational age, and preterm birth in crude and adjusted models. We also evaluated the relationships between log2-transformed blood cadmium concentrations and the density of coal-burning stoves within 5000 m of each participant's apartment as a proxy of coal smoke emissions from home heating stoves. RESULTS The median (25th,75th percentile) blood cadmium concentration was 0.20 (0.15, 0.29) μg/L. A doubling of blood cadmium was associated with a 95 g (95% CI: 34, 155 g) reduction in birth weight in adjusted models. An interquartile range increase in coal stove density (from 3.4 to 4.9 gers/hectare) surrounding participants' apartments was associated with a 12.2% (95% CI: 0.3, 25.6%) increase in blood cadmium concentrations. CONCLUSIONS Gestational cadmium exposure was associated with reduced birth weight. In settings where coal is a widely used fuel, cadmium may play a role in the putative association between air pollution and impaired fetal growth.
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Affiliation(s)
- Prabjit Barn
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, V5A 1S6, Canada
| | - Enkhjargal Gombojav
- School of Public Health, Mongolian National University of Medical Sciences, Zorig Street, Ulaanbaatar, 14210, Mongolia
| | - Chimedsuren Ochir
- School of Public Health, Mongolian National University of Medical Sciences, Zorig Street, Ulaanbaatar, 14210, Mongolia
| | - Buyantushig Boldbaatar
- School of Public Health, Mongolian National University of Medical Sciences, Zorig Street, Ulaanbaatar, 14210, Mongolia
| | - Bolor Beejin
- Ministry of Health of Mongolia, Olympic Street-2, Government Building VIII, Sukhbaatar District, Ulaanbaatar, Mongolia
| | - Gerel Naidan
- School of Public Health, Mongolian National University of Medical Sciences, Zorig Street, Ulaanbaatar, 14210, Mongolia
| | - Jargalsaikhan Galsuren
- School of Public Health, Mongolian National University of Medical Sciences, Zorig Street, Ulaanbaatar, 14210, Mongolia
| | - Bayarkhuu Legtseg
- Sukhbaatar District Health Center, 11 Horoo, Tsagdaagiin Gudamj, Sukhbaatar District, Ulaanbaatar, Mongolia
| | - Tsogtbaatar Byambaa
- Ministry of Health of Mongolia, Olympic Street-2, Government Building VIII, Sukhbaatar District, Ulaanbaatar, Mongolia
| | - Jennifer A Hutcheon
- Faculty of Medicine, Department of Obstetrics & Gynaecology, University of British Columbia, 4500 Oak Street, Vancouver, V6H 2N1, Canada
| | - Craig Janes
- School of Public Health and Health Systems, University of Waterloo, 200 University Avenue West, Waterloo, N2L 3G1, Canada
| | - Patricia A Janssen
- School of Population and Public Health, University of British Columbia, 2206 East Mall, Vancouver, V6T 1Z3, Canada
| | - Bruce P Lanphear
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, V5A 1S6, Canada
| | - Lawrence C McCandless
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, V5A 1S6, Canada
| | - Tim K Takaro
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, V5A 1S6, Canada
| | - Scott A Venners
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, V5A 1S6, Canada
| | - Glenys M Webster
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, V5A 1S6, Canada
| | - Christopher D Palmer
- New York State Department of Health, Wadsworth Center, Albany, NY, PO Box 509, 12201, USA; School of Public Health, University at Albany, State University of New York, One University Place, Rensselaer, NY, 12144, USA
| | - Patrick J Parsons
- New York State Department of Health, Wadsworth Center, Albany, NY, PO Box 509, 12201, USA; School of Public Health, University at Albany, State University of New York, One University Place, Rensselaer, NY, 12144, USA
| | - Ryan W Allen
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, V5A 1S6, Canada.
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Nakayama SF, Iwai-Shimada M, Oguri T, Isobe T, Takeuchi A, Kobayashi Y, Michikawa T, Yamazaki S, Nitta H, Kawamoto T. Blood mercury, lead, cadmium, manganese and selenium levels in pregnant women and their determinants: the Japan Environment and Children's Study (JECS). JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2019; 29:633-647. [PMID: 31000792 PMCID: PMC6760604 DOI: 10.1038/s41370-019-0139-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 02/12/2019] [Accepted: 03/22/2019] [Indexed: 05/27/2023]
Abstract
The Japan Environment and Children's Study (JECS) is a birth-cohort study of 100,000 mother-child dyads that aims to investigate the effect of the environment on child health and development. Mercury (Hg), lead (Pb), cadmium (Cd), manganese (Mn) and selenium (Se) are considered to be important co-exposures when examining the effect of other chemical substances on child development. The levels of these elements in the blood of 20,000 randomly selected mid/late-term pregnant women from the whole JECS cohort were analysed using inductively coupled plasma-mass spectrometry. The median concentrations (interquartile ranges) for Pb, Hg, Cd, Mn and Se were 0.63 (0.51-0.78) µg dl-1, 3.83 (2.70-5.43) µg l-1, 0.70 (0.52-0.95) µg l-1, 16.1 (13.2-19.6) µg l-1 and 178 (165-192) µg l-1, respectively. Hg and Se correlated positively with each other (Spearman's ρ = 0.287), as did Pb and Cd (ρ = 0.239) and Cd and Mn (ρ = 0.267). The blood Pb levels decreased by 5-10-fold over the past 25 years. The main predictors of the blood levels of each element were fish consumption for Hg, maternal age and non-alcoholic beverage consumption for Pb, maternal age and smoking for Cd, gestational age at sampling for Mn and serum protein levels for Se. These results revealed the historical trends and current predictors of the blood levels of these elements in pregnant Japanese women.
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Affiliation(s)
- Shoji F Nakayama
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan.
| | - Miyuki Iwai-Shimada
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Tomoko Oguri
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki, 305-8569, Japan
| | - Tomohiko Isobe
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Ayano Takeuchi
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
- Department of Preventive Medicine and Public Health, Keio University, 35 Shinanomachi, Shinjukuku, Tokyo, 106-8582, Japan
| | - Yayoi Kobayashi
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Takehiro Michikawa
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
- Department of Environmental and Occupational Health, School of Medicine, Toho University, 5-21-16 Omori-nishi, Otaku, Tokyo, 143-8540, Japan
| | - Shin Yamazaki
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Hiroshi Nitta
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Toshihiro Kawamoto
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
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Mikalsen SM, Bjørke-Monsen AL, Flaten TP, Whist JE, Aaseth J. Cadmium, lead and mercury in Norwegian obese patients before and 12 months after bariatric surgery. J Trace Elem Med Biol 2019; 54:150-155. [PMID: 31109605 DOI: 10.1016/j.jtemb.2019.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/11/2019] [Accepted: 04/17/2019] [Indexed: 12/31/2022]
Abstract
PURPOSE Previous studies have suggested a role for the toxic elements lead (Pb), mercury (Hg) and cadmium (Cd) in the development of insulin resistance and hypertension. Increased blood Pb levels have been reported after bariatric surgery and weight loss. As about 80% of patients undergoing bariatric surgery are women, most of them of childbearing age, there are concerns regarding fetal exposure to toxic trace elements. We measured whole blood Hg, Pb and Cd concentrations in morbidly obese patients before and 12 months after Roux-en-Y gastric bypass (RYGB). PATIENTS AND METHODS Forty-six patients eligible for bariatric surgery were recruited at Innlandet Hospital Trust, Norway (2012-2014). The majority were women and 54% were of reproductive age. Whole blood samples were collected prior to and 12 months after surgery. Trace element concentrations were measured using mass spectrometry (HR-ICP-MS). RESULTS Median whole blood Pb concentrations increased by 73% during the 12 months study period while Hg and Cd decreased by 31% and 27%, respectively. We found a negative correlation between Pb levels before surgery and BMI (p = 0.02). Before surgery patients with hypertension had significantly higher median whole blood Hg levels compared to patients with normal blood pressure (p < 0.001). CONCLUSION One year after bariatric surgery, the median whole blood Pb concentration was increased, while Hg and Cd concentrations were decreased. The majority of bariatric surgery patients are women of reproductive age and weight loss is associated with improved fertility. As even low dose Pb exposure during fetal life is associated with negative effects on the central nervous system, the observed increase in whole blood Pb after weight loss causes concern. Further studies are needed to elucidate these observations.
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Affiliation(s)
- Solveig Meyer Mikalsen
- Laboratory of Medical Biochemistry, Innlandet Hospital Trust, 2609, Lillehammer, Norway.
| | - Anne-Lise Bjørke-Monsen
- Laboratory of Clinical Biochemistry, Haukeland University Hospital, 5021, Bergen, Norway; Department of Clinical Science, University of Bergen, Norway
| | - Trond Peder Flaten
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway
| | - Jon Elling Whist
- Laboratory of Medical Biochemistry, Innlandet Hospital Trust, 2609, Lillehammer, Norway; Department of Research, Innlandet Hospital Trust, 2380, Brumunddal, Norway
| | - Jan Aaseth
- Department of Research, Innlandet Hospital Trust, 2380, Brumunddal, Norway; Inland Norway University of Applied Sciences, 2411, Elverum, Norway
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Caspersen IH, Thomsen C, Haug LS, Knutsen HK, Brantsæter AL, Papadopoulou E, Erlund I, Lundh T, Alexander J, Meltzer HM. Patterns and dietary determinants of essential and toxic elements in blood measured in mid-pregnancy: The Norwegian Environmental Biobank. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 671:299-308. [PMID: 30928759 DOI: 10.1016/j.scitotenv.2019.03.291] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/13/2019] [Accepted: 03/19/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Inadequate stores or intakes of essential minerals in pregnancy, or too high exposure to both toxic and essential elements, can have adverse effects on mother and child. The main aims of this study were to 1) describe the concentrations and patterns of essential and toxic elements measured in maternal whole blood during pregnancy; 2) identify dietary, lifestyle and sociodemographic determinants of element status; and 3) explore the impact of iron deficiency on blood element concentrations. METHODS This study is based on blood samples collected from 2982 women in gestational week 18 in The Norwegian Mother and Child Cohort study (MoBa) which were analyzed as part of the Norwegian Environmental Biobank. We derived blood element patterns by exploratory factor analysis, and associations between blood element patterns and diet were explored using sparse partial least squares (sPLS) regression. RESULTS Blood concentrations were determined for the essential elements (in the order of most abundant) Zn > Cu > Se > Mn > Mo > Co, and the toxic metals Pb > As > Hg > Cd > Tl. The concentrations were in ranges that were similar to or sometimes more favorable than in other pregnant and non-pregnant European women. We identified two blood element patterns; one including Zn, Se and Mn and another including Hg and As. For the Zn-Se-Mn pattern, use of multimineral supplements was the most important dietary determinant, while a high score in the Hg-As pattern was mainly determined by seafood consumption. Concentrations of Mn, Cd and Co were significantly higher in women with iron deficiency (plasma ferritin < 12 μg/L) than in women with plasma ferritin ≥ 12 μg/L. CONCLUSION Our study illustrates complex relationships and coexistence of essential and toxic elements. Their potential interplay adds to the challenges of studies investigating health effects related to either diet or toxicants.
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Affiliation(s)
- Ida Henriette Caspersen
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway.
| | - Cathrine Thomsen
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Line Småstuen Haug
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Helle K Knutsen
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Anne Lise Brantsæter
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Eleni Papadopoulou
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Iris Erlund
- Genomics and Biomarkers Unit, National Institute for Health and Welfare, Helsinki, Finland
| | - Thomas Lundh
- Division of Occupational and Environmental Medicine, Institution of Laboratory Medicine, Lund University, Lund, Sweden
| | - Jan Alexander
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Helle Margrete Meltzer
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
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Caini S, Bendinelli B, Masala G, Saieva C, Assedi M, Querci A, Lundh T, Kyrtopoulos SA, Palli D. Determinants of Erythrocyte Lead Levels in 454 Adults in Florence, Italy. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E425. [PMID: 30717230 PMCID: PMC6388176 DOI: 10.3390/ijerph16030425] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/10/2019] [Accepted: 01/31/2019] [Indexed: 01/01/2023]
Abstract
Background: Lead exposure, even at low levels, is associated with adverse health effects in humans. We investigated the determinants of individual lead levels in a general population-based sample of adults from Florence, Italy. Methods: Erythrocyte lead levels were measured (using inductively coupled plasma-mass spectrometry) in 454 subjects enrolled in the Florence cohort of the European Prospective Investigation into Cancer and Nutrition (EPIC) study in 1992⁻1998. Multiple linear regression models were used to study the association between demographics, education and working history, lifestyle, dietary habits, anthropometry, residential history, and (among women) menstrual and reproductive history and use of exogenous sex hormones, and erythrocyte lead levels. Results: Median lead levels were 86.1 μg/L (inter-quartile range 65.5⁻111.9 μg/L). Male gender, older age, cigarette smoking and number of pack-years, alcohol intake, and residing in urban areas were positively associated with higher erythrocyte lead levels, while performing professional/managerial or administrative work or being retired was inversely associated with lead levels. Among women, lead levels were higher for those already in menopause, and lower among those who ever used hormone replacement therapy. Conclusions: Avoidable risk factors contribute to the lead body burden among adults, which could therefore be lowered through targeted public health measures.
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Affiliation(s)
- Saverio Caini
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), 50139 Florence, Italy.
| | - Benedetta Bendinelli
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), 50139 Florence, Italy.
| | - Giovanna Masala
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), 50139 Florence, Italy.
| | - Calogero Saieva
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), 50139 Florence, Italy.
| | - Melania Assedi
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), 50139 Florence, Italy.
| | - Andrea Querci
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), 50139 Florence, Italy.
| | - Thomas Lundh
- Division of Occupational and Environmental Medicine, Lund University Hospital, 22363 Lund, Sweden.
| | - Soterios A Kyrtopoulos
- National Hellenic Research Foundation, Institute of Biology, Pharmaceutical Chemistry and Biotechnology, 11635 Athens, Greece.
| | - Domenico Palli
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), 50139 Florence, Italy.
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Caini S, Bendinelli B, Masala G, Saieva C, Lundh T, Kyrtopoulos SA, Palli D. Predictors of erythrocyte cadmium levels in 454 adults in Florence, Italy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 644:37-44. [PMID: 29980083 DOI: 10.1016/j.scitotenv.2018.06.347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/27/2018] [Accepted: 06/27/2018] [Indexed: 05/24/2023]
Abstract
BACKGROUND Cadmium bioaccumulates in the body and causes several adverse health effects. Understanding the primary sources of exposure is critical in order to implement effective prevention measures. METHODS We included 454 adults enrolled in the Florence cohort of the European Prospective Investigation into Cancer and Nutrition (EPIC) during 1992-98. At enrolment, information was collected on demographics, lifestyle and dietary habits using validated questionnaires; anthropometric measures were taken; and a blood sample was collected from each study participant. Information on the residential and occupational history prior to enrolment was reconstructed by phone interviews. Cadmium levels were measured in erythrocytes using inductively coupled plasma-mass spectrometry. We used multiple linear regression models to investigate the main determinants of cadmium levels. RESULTS Median erythrocyte cadmium levels were 0.66 μg/L (inter-quartile range 0.43-1.07 μg/L). Cadmium levels were lowest in never smokers (0.50 μg/L) and highest in current smokers (1.38 μg/L). Smoking status and the number of pack-years were the strongest predictors of cadmium levels in multivariable analysis, together with erythrocyte levels of lead, and biking to work, while an inverse association emerged with consumption of red meat and dairy products and physical activity levels. Cadmium levels were higher among women than men (0.66 vs. 0.58 μg/L), and, among the former, positively associated with late menopause, nulliparity, and use of hormones for menopause. The predictors included in the multivariable model explained >40% of the variability in erythrocyte cadmium levels. CONCLUSIONS Smoking was the most important determinant of erythrocyte cadmium levels, which were also affected by dietary habits, physical activity levels, biking, and (among women) hormone-related variables. Our results are important to inform public health actions aimed at reducing the impact of potentially modifiable sources of exposure to cadmium.
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Affiliation(s)
- Saverio Caini
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy.
| | - Benedetta Bendinelli
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Giovanna Masala
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Calogero Saieva
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Thomas Lundh
- Division of Occupational and Environmental Medicine, Lund University Hospital, Lund, Sweden
| | - Soterios A Kyrtopoulos
- National Hellenic Research Foundation, Institute of Biology, Pharmaceutical Chemistry and Biotechnology, Athens, Greece
| | - Domenico Palli
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
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Casjens S, Pesch B, van Thriel C, Zschiesche W, Behrens T, Weiss T, Pallapies D, Arendt M, Dragano N, Moebus S, Jöckel KH, Brüning T. Associations between blood lead, olfaction and fine-motor skills in elderly men: Results from the Heinz Nixdorf Recall Study. Neurotoxicology 2018; 68:66-72. [DOI: 10.1016/j.neuro.2018.06.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/27/2018] [Accepted: 06/27/2018] [Indexed: 12/24/2022]
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