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Li C, Wang N, Li Y, Yang H, Li J, Zhang Z. Environmental Cadmium Exposure Exacerbated Bone Loss in NAFLD Mice. Biol Trace Elem Res 2024; 202:4586-4595. [PMID: 38100013 DOI: 10.1007/s12011-023-04016-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/11/2023] [Indexed: 08/22/2024]
Abstract
Due to rapid urbanization and industrialization, Cadmium (Cd) contamination is widespread. Meanwhile, the prevalence of nonalcoholic fatty liver disease (NAFLD) has been increasing. Cd is linked to bone damage. However, the osteotoxicity of environmental Cd exposure in NAFLD remains unclear. Therefore, this study aimed to investigate the effects and potential mechanisms of Cd on bone metabolism in NAFLD mice. NAFLD mice were treated with 50 mg/L cadmium chloride in drinking water for 12 weeks. Bone microstructures were scanned by Micro-CT. Liver lipid droplets and fibrosis were measured by histopathological staining. Insulin tolerance tests were performed in mice. RT-PCR and Western blot were performed to analyse hepatic inflammation factors. Results show no damage in healthy mice exposed to Cd. However, Cd exacerbated liver fibrosis and significantly reduced cancellous bone mineral density and decreased the number and thickness of trabecular bone in NAFLD mice. Additionally, the morphology of trabecular bone transformed from a plate structure to a rod structure in NAFLD mice after Cd exposure. The underlying mechanism appears to be related to the Cd-induced direct or indirect toxicity. Exacerbated liver fibrosis, increased inflammatory factors (TGF-β and IL-1β), and reduced lecithin-cholesterol acyltransferase (LCAT) and insulin-like growth factor-1 (IGF-1) might contribute to bone damages. Collectively, our study illustrates that despite lower dosing Cd exposure did not induce bone damages in healthy mice, Cd caused bone loss in NAFLD mice. Therefore, it is recommended that individuals with metabolic disorders should avoid working in Cd pollution environment and consuming cadmium-contaminated food and water.
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Affiliation(s)
- Changhao Li
- School of Public Health, Soochow University, 199 Renai Road, Suzhou, 215123, Jiangsu, China
| | - Nana Wang
- School of Public Health, Soochow University, 199 Renai Road, Suzhou, 215123, Jiangsu, China
| | - Yuting Li
- School of Public Health, Soochow University, 199 Renai Road, Suzhou, 215123, Jiangsu, China
| | - Hui Yang
- School of Public Health, Soochow University, 199 Renai Road, Suzhou, 215123, Jiangsu, China
| | - Jiafu Li
- School of Public Health, Soochow University, 199 Renai Road, Suzhou, 215123, Jiangsu, China
| | - Zengli Zhang
- School of Public Health, Soochow University, 199 Renai Road, Suzhou, 215123, Jiangsu, China.
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Yoshinaga J, Ogawa M. Intake and excretion of cadmium of Japanese adult. J Trace Elem Med Biol 2024; 86:127535. [PMID: 39340982 DOI: 10.1016/j.jtemb.2024.127535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 09/18/2024] [Accepted: 09/19/2024] [Indexed: 09/30/2024]
Abstract
OBJECTIVE It is the aim of this study if the recent Cd intake and excretion is consistent with the regression equation proposed by Ikeda et al. (Environ. Health Prev. Med. 20 (2015) 455-459) which utilized intake/excretion data of 3 decades ago METHOD: Matched duplicate diet and spot urine samples were collected in 2017-2019 from 150 Japanese adults (85 females and 65 males, mean age being 44.9) for the estimation of daily Cd intake and urinary excretion. Cd concentration in diet and urine was measured by ICP mass spectrometry. RESULT Geometric mean (geometric standard deviation) of Cd intake was 12.1 (1.67) μg/person/day or 0.206 (1.66) μg/kg body wt./day. Urinary Cd concentration was 0.54 (2.6) μg/g creatinine or 0.67 μg/L (2.3) (gravimetric correction). These were lower than those reported previously for Japanese populations. Urinary concentration was significantly higher in females than in males for both creatinine and gravimetric corrections. Dietary intake was higher in males than in females but this difference diminished after body weight correction. There was no significant correlation between Cd intake and urinary concentration on individual basis, which was expected because urinary Cd concentration reflects Cd body burden but not recent intake level. Meanwhile, the geometric mean intake and urine concentration was consistent with the regression equation proposed by Ikeda et al., which was based on intake and excretion surveys for 30 non-exposed Japanese female populations. CONCLUSION This result supported that the regression equation of Ikeda et al. could be used for conversion of urinary Cd excretion level of a population to intake level.
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Affiliation(s)
- Jun Yoshinaga
- Faculty of Life Sciences, Toyo University, Oka 48-1, Asaka, Saitama 351-8510, Japan.
| | - Minori Ogawa
- Faculty of Life Sciences, Toyo University, Oka 48-1, Asaka, Saitama 351-8510, Japan
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Zhang Y, Zhao Y, Zhai Y, He J, Tang M, Liu Y, Yao Y, Xue P, He M, Li Q, Xu Y, Qu W, Zhang Y. Cadmium impairs the development of natural killer cells and bidirectionally modifies their capacity for cytotoxicity. CHEMOSPHERE 2023; 311:137068. [PMID: 36330983 DOI: 10.1016/j.chemosphere.2022.137068] [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: 07/24/2022] [Revised: 10/22/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Cadmium (Cd) is a highly toxic heavy metal in the environment. The aim of this study was to investigate the impact of Cd on natural killer (NK) cells. C57BL/6 mice were treated with 10 ppm Cd via drinking water for 3 months, and the development of NK cells in the bone marrow (BM) and the cytotoxicity of mature NK (mNK) cells in the peripheral immune organs were evaluated thereafter; the impact of Cd on the cytotoxicity of mNK cells from human peripheral blood mononuclear cells (PBMC) was also investigated. Whereas Cd treatment impaired the differentiation of NK progenitors in the BM, Cd treatment activated the JAK3/STAT5 signaling to drive the proliferation of mNK cells and thereby lead to a compensation increase of mNK cells in the peripheral immune organs of mice. Additionally, Cd treatment bidirectionally regulated the cytotoxicity of mouse mNK cells to differential tumor cells, dependent on the levels of Fas expression in the tumor cells; mechanically, Cd treatment activated the JAK3/STAT5 signaling to promote the expression of FasL in mNK cells to increase their cytotoxicity, while Cd treatment reduced the expression of granzyme B in mNK cells to impair their cytotoxicity in the peripheral immune organs of mice. Likewise, in vitro assays indicated that Cd treatment also activated the JAK3/STAT5 signaling to increase the expression of FasL, whereas Cd treatment reduced the expression of granzyme B in human mNK cells. Thus Cd treatment impaired the development of NK cells in the BM and bidirectionally regulated the cytotoxicity of mNK cells in the peripheral immune organs, which may extend our current understanding for the immunotoxicity of Cd.
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Affiliation(s)
- Yufan Zhang
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Yifan Zhao
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Yue Zhai
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Jinyi He
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Mengke Tang
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Yalin Liu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Ye Yao
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Peng Xue
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Miao He
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Qian Li
- School of Public Health, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Yanyi Xu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Weidong Qu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Yubin Zhang
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China.
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Zhao Y, He J, Zhu T, Zhang Y, Zhai Y, Xue P, Yao Y, Zhou Z, He M, Qu W, Zhang Y. Cadmium exposure reprograms energy metabolism of hematopoietic stem cells to promote myelopoiesis at the expense of lymphopoiesis in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 231:113208. [PMID: 35051759 DOI: 10.1016/j.ecoenv.2022.113208] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/08/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Cadmium (Cd) is a highly toxic heavy metal in our living environment. Hematopoietic stem cells (HSC) are ancestors for all blood cells. Therefore understanding the impact of Cd on HSC is significant for public health. The aim of this study was to investigate the impact of Cd2+ on energy metabolism of HSC and its involvement in hematopoiesis. Wild-type C57BL/6 mice were treated with 10 ppm of Cd2+ via drinking water for 3 months, and thereafter glycolysis and mitochondrial (MT) oxidative phosphorylation (OXPHOS) of HSC in the bone marrow (BM) and their impact on hematopoiesis were evaluated. After Cd2+ treatment, HSC had reduced lactate dehydrogenase (LDH) activity and lactate production while having increased pyruvate dehydrogenase (PDH) activity, MT membrane potential, ATP production, oxygen (O2) consumption and reactive oxygen species (ROS), indicating that Cd2+ switched the pattern of energy metabolism from glycolysis to OXPHOS in HSC. Moreover, Cd2+ switch of HSC energy metabolism was critically dependent on Wnt5a/Cdc42/calcium (Ca2+) signaling triggered by a direct action of Cd2+ on HSC. To test the biological significance of Cd2+ impact on HSC energy metabolism, HSC were intervened for Ca2+, OXPHOS, or ROS in vitro, and thereafter the HSC were transplanted into lethally irradiated recipients to reconstitute the immune system; the transplantation assay indicated that Ca2+-dependent MT OXPHOS dominated the skewed myelopoiesis of HSC by Cd2+ exposure. Collectively, we revealed that Cd2+ exposure activated Wnt5a/Cdc42/Ca2+ signaling to reprogram the energy metabolism of HSC to drive myelopoiesis at the expense of lymphopoiesis.
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Affiliation(s)
- Yifan Zhao
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China
| | - Jinyi He
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China
| | - Tingting Zhu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China
| | - Yufan Zhang
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China
| | - Yue Zhai
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China
| | - Peng Xue
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China
| | - Ye Yao
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China
| | - Zhijun Zhou
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China
| | - Miao He
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Sciences, Fudan University, Shanghai 200032, China
| | - Weidong Qu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China
| | - Yubin Zhang
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai 200032, China.
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McCall JL, Varney ME, Rice E, Dziadowicz SA, Hall C, Blethen KE, Hu G, Barnett JB, Martinez I. Prenatal Cadmium Exposure Alters Proliferation in Mouse CD4 + T Cells via LncRNA Snhg7. Front Immunol 2022; 12:720635. [PMID: 35087510 PMCID: PMC8786704 DOI: 10.3389/fimmu.2021.720635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 12/14/2021] [Indexed: 11/13/2022] Open
Abstract
Objective Prenatal cadmium (Cd) exposure leads to immunotoxic phenotypes in the offspring affecting coding and non-coding genes. Recent studies have shown that long non-coding RNAs (lncRNAs) are integral to T cell regulation. Here, we investigated the role of long non-coding RNA small nucleolar RNA host gene 7 (lncSnhg7) in T cell proliferation. Methods RNA sequencing was used to analyze the expression of lncRNAs in splenic CD4+ T cells with and without CD3/CD28 stimulation. Next, T cells isolated from offspring exposed to control or Cd water throughout mating and gestation were analyzed with and without stimulation with anti-CD3/CD28 beads. Quantitative qPCR and western blotting were used to detect RNA and protein levels of specific genes. Overexpression of a miR-34a mimic was achieved using nucleofection. Apoptosis was measured using flow cytometry and luminescence assays. Flow cytometry was also used to measure T cell proliferation in culture. Finally, lncSnhg7 was knocked down in splenic CD4+ T cells with lentivirus to assess its effect on proliferation. Results We identified 23 lncRNAs that were differentially expressed in stimulated versus unstimulated T cells, including lncSnhg7. LncSnhg7 and a downstream protein, GALNT7, are upregulated in T cells from offspring exposed to Cd during gestation. Overexpression of miR-34a, a regulator of lncSnhg7 and GALNT7, suppresses GALNT7 protein levels in primary T cells, but not in a mouse T lymphocyte cell line. The T cells isolated from Cd-exposed offspring exhibit increased proliferation after activation in vitro, but Treg suppression and CD4+ T cell apoptosis are not affected by prenatal Cd exposure. Knockdown on lncSnhg7 inhibits proliferation of CD4+ T cells. Conclusion Prenatal Cd exposure alters the expression of lncRNAs during T cell activation. The induction of lncSnhg7 is enhanced in splenic T cells from Cd offspring resulting in the upregulation of GALNT7 protein and increased proliferation following activation. miR-34a overexpression decreased GALNT7 expression and knockdown of lncSnhg7 inhibited proliferation suggesting that the lncSnhg7/miR-34a/GALNT7 is an important pathway in primary CD4+ T cells. These data highlight the need to understand the consequences of environmental exposures on lncRNA functions in non-cancerous cells as well as the effects in utero.
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Affiliation(s)
- Jamie L. McCall
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, United States
| | - Melinda E. Varney
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, United States
| | - Emily Rice
- West Virginia University Cancer Institute, School of Medicine, West Virginia University, Morgantown, WV, United States
| | - Sebastian A. Dziadowicz
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, United States
| | - Casey Hall
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, United States
| | - Kathryn E. Blethen
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, United States
| | - Gangqing Hu
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, United States
- West Virginia University Cancer Institute, School of Medicine, West Virginia University, Morgantown, WV, United States
- Bioinformatics Core, West Virginia University, Morgantown, WV, United States
| | - John B. Barnett
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, United States
- West Virginia University Cancer Institute, School of Medicine, West Virginia University, Morgantown, WV, United States
| | - Ivan Martinez
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, WV, United States
- West Virginia University Cancer Institute, School of Medicine, West Virginia University, Morgantown, WV, United States
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Tomo I, Kemper CM, Sciutteri V. Pathology of the skeleton of Indo-Pacific bottlenose dolphins Tursiops aduncus: a comparison of adjacent gulfs in South Australia. DISEASES OF AQUATIC ORGANISMS 2018; 131:95-105. [PMID: 30460916 DOI: 10.3354/dao03297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Studies of skeletal pathology of marine mammals can contribute to conservation measures, yet few have focused on causative factors. Museums hold vast collections of skeletons relevant to this knowledge gap. Indo-Pacific bottlenose dolphin Tursiops aduncus carcasses (n = 162) were collected from Gulf St Vincent (GSV) and Spencer Gulf (SG), South Australia (SA), between 1988 and 2013, and post-mortem examinations were carried out. After preparing skeletons, their gross pathology was classified into 4 categories: lytic lesions, degenerative lesions, fractures and malformations. Comparisons were made between gulfs based on pathology type, relative age, period of collection and cause of death (anthropogenic vs. non-anthropogenic). Pathology prevalence (76%) was higher than reported in other studies but observed pathologies were similar. More than one pathology was observed in 88% of dolphins that had pathology. Vertebrae were often the site of pathology. Prevalence of lesions were: fractures (82%), lytic lesions (75%) including spondylo-osteomyelitis and osteomyelitis, degenerative lesions (57%) including spondylosis deformans, and malformations (17%). Prevalence of pathology increased with dolphin relative age, and GSV dolphins had more pathology than those in SG. In SG, anthropogenic cases had more pathology than non-anthropogenic cases, and dolphins collected after 2000 had more degenerative lesions than those collected before 2000. There were more malformations in SG dolphins than those from GSV, although this was not statistically significant. In one anomalous case, an individual was found with 5 detached transverse processes on 4 lumbar vertebrae. Heavy metal toxicity reported for T. aduncus from SG may be related to the malformations reported in this study.
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Affiliation(s)
- Ikuko Tomo
- South Australian Museum, Adelaide, South Australia 5000, Australia
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Removal of cadmium and copper from water by a magnetic adsorbent of PFM: Adsorption performance and micro-structural morphology. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.06.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wang H, Liu L, Hu YF, Hao JH, Chen YH, Su PY, Yu Z, Fu L, Tao FB, Xu DX. Association of maternal serum cadmium level during pregnancy with risk of preterm birth in a Chinese population. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 216:851-857. [PMID: 27381872 DOI: 10.1016/j.envpol.2016.06.058] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/22/2016] [Accepted: 06/25/2016] [Indexed: 06/06/2023]
Abstract
Cadmium (Cd) was a developmental toxicant that induces fetal malformation and growth restriction in mice. However, epidemiological studies about the association of maternal serum Cd level with risk of preterm birth were limited. This study was to investigate whether maternal serum Cd level during pregnancy is associated with risk of preterm birth in a Chinese population. Total 3254 eligible mother-and-singleton-offspring pairs were recruited. Maternal serum Cd level was measured by GFAAS. Based on tertiles, maternal serum Cd concentration was classified as low (LCd, <0.65 μg/L), medium (MCd, 0.65-0.94 μg/L) and high (HCd, ≥0.95 μg/L). Odds ratio (OR) for preterm birth was estimated using multiple logistic regression models. Results showed the rate of preterm birth among LCd, M-Cd and HCd was 3.5%, 3.8%, and 9.4%, respectively. Subjects with HCd had a significantly higher risk for preterm birth (OR: 2.86; 95%CI: 1.95, 4.19; P < 0.001) than did those with LCd. Adjusted OR for preterm birth was 3.02 (95%CI: 2.02, 4.50; P < 0.001) among subjects with HCd compared to subjects with LCd. Taken together, the above results suggest that maternal serum Cd level during pregnancy is positively associated with risk of preterm birth.
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Affiliation(s)
- Hua Wang
- School of Public Health, Anhui Medical University, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Lu Liu
- School of Public Health, Anhui Medical University, China
| | - Yong-Fang Hu
- School of Public Health, Anhui Medical University, China
| | - Jia-Hu Hao
- School of Public Health, Anhui Medical University, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Yuan-Hua Chen
- School of Public Health, Anhui Medical University, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Pu-Yu Su
- School of Public Health, Anhui Medical University, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China
| | - Zhen Yu
- School of Public Health, Anhui Medical University, China
| | - Lin Fu
- School of Public Health, Anhui Medical University, China
| | - Fang-Biao Tao
- School of Public Health, Anhui Medical University, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China.
| | - De-Xiang Xu
- School of Public Health, Anhui Medical University, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China.
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Maternal serum cadmium level during pregnancy and its association with small for gestational age infants: a population-based birth cohort study. Sci Rep 2016; 6:22631. [PMID: 26934860 PMCID: PMC4776171 DOI: 10.1038/srep22631] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 02/19/2016] [Indexed: 02/08/2023] Open
Abstract
The association between maternal cadmium (Cd) exposure during pregnancy and the increased risk of fetal growth restriction (FGR) remains controversial. The present study evaluated the association between maternal serum Cd level and risk of small for gestational age (SGA) infants in a Chinese population. The present study analyzed a subsample of the C-ABCS cohort that recruited 3254 eligible mother-and-singleton-offspring pairs. Maternal serum Cd level during pregnancy was measured by graphite furnace atomic absorption spectrometry. The rate and odds ratio (OR) for SGA infant were calculated. The rate for SGA infant was 10.6% among subjects with H-Cd (≥1.06 μg/L), significantly higher than 7.5% among subjects with L-Cd (<1.06 μg/L). OR was 1.45 (95% CI: 1.11, 1.90; P = 0.007) among subjects with H-Cd. Adjusted OR for SGA infants was 1.43 (95% CI: 1.09, 1.88; P = 0.007) among subjects with H-Cd. Taken together, we observe the fact that maternal Cd exposure at middle gestational stage, elevates the risk of SGA in contrast to early gestational stage. The present results might be interesting and worth more discussing, and guarantee to further studies.
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Son HS, Kim SG, Suh BS, Park DU, Kim DS, Yu SD, Hong YS, Park JD, Lee BK, Moon JD, Sakong J. Association of cadmium with diabetes in middle-aged residents of abandoned metal mines: the first health effect surveillance for residents in abandoned metal mines. Ann Occup Environ Med 2015; 27:20. [PMID: 26306202 PMCID: PMC4547430 DOI: 10.1186/s40557-015-0071-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 07/29/2015] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE The aim of this study was to determine the association between urinary cadmium (U-cd) concentration and diabetes in middle-aged Korean residents of abandoned mines using the first Health Effect Surveillance for Residents in Abandoned Metal mines (HESRAM). METHODS This study was cross-sectional study conducted on 719 residents between 40-70 years in 38 abandoned metal mines in Korea. Data was collected by HESRAM from 2008 to 2011. The correlation coefficient of U-cd and fasting blood glucose, odds ratio in urinary cadmium tertiles and diabetes prevalence was analyzed according to the sex category. RESULTS The correlation coefficient U-cd concentration and fasting blood glucose was 0.182 in male. Logistic regression analysis in male revealed a third tertile odds ratio of U-cd (2 μg/g creatinine < U-cd) while diabetes prevalence was 1.81 (95 % CI 1.05-3.12) with adjusted age, BMI, smoking and alcohol consumption, region, family income. On the other hand, the odds ratio for third tertile of U-cd (3 μg/g creatinine < U-cd) between diabetes prevalence in female was 1.39 (95 % CI 0.52-3.72) in addition to adjusted menopausal status. CONCLUSIONS Environmental exposure to cadmium in abandoned mine residents was associated with diabetes in male. Closed monitoring and periodic evaluation of the health effects of chronic environmental exposure on abandoned mines residents will be needed.
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Affiliation(s)
- Hee-Seung Son
- Department of 1Occupational and Environmental Medicine, Kangbuk Samsung Hospital, Medical Center of Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Soo-Geun Kim
- Department of 1Occupational and Environmental Medicine, Kangbuk Samsung Hospital, Medical Center of Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Byung-Seong Suh
- Department of 1Occupational and Environmental Medicine, Kangbuk Samsung Hospital, Medical Center of Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Dong-Uk Park
- Department of Environmental Health, Korea National Open University, Seoul, Republic of Korea
| | - Dae-Seon Kim
- Environmental Health Research Department, Environmental Health Research Division, Incheon, Republic of Korea
| | - Seung-do Yu
- Environmental Health Research Department, Environmental Health Research Division, Incheon, Republic of Korea
| | - Yeong-Seoub Hong
- Department of Preventive Medicine, School of Medicine, Dong-A University, Busan, Republic of Korea
| | - Jung-Duck Park
- Department of Preventive Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Byung-Kook Lee
- Korean Industrial Health Association, Hyesan Bldg., Seoul, Republic of Korea
| | - Jai-Dong Moon
- Department of Preventive Medicine and Public Health, College of Medicine, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea
| | - Joon Sakong
- Department of Preventive Medicine and Public Health, College of Medicine, Yeungnam University, Daegu, Republic of Korea
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Jain RB. Effect of pregnancy on the levels of urinary metals for females aged 17-39 years old: data from National Health and Nutrition Examination Survey 2003-2010. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2013; 76:86-97. [PMID: 23294297 DOI: 10.1080/15287394.2013.738171] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Data from National Health and Nutrition Examination survey for the years 2003-2010 were used (n = 1565) to evaluate the effect of age, parity, body mass index (BMI), race/ethnicity, pregnancy, iron (Fe) storage status, smoking status, and fish/shellfish consumption on the levels of urine barium (Ba), cadmium (Cd), cesium (Cs), cobalt (Co), molybdenum (Mo), lead (Pb), antimony (Sb), thallium (TI), tungsten (W), uranium (U), and mercury (Hg) for females aged 17-39 yr old. Regression analysis was used to fit models for each of the 11 metals. For Cd, Cs, TI, and Hg, age was positively associated with levels of these metals. Body mass index was negatively associated with levels of Cs, Co, and TI. Levels of Co, Mo, and W increased over the period 2003-2010. Over the same period, levels of Pb, Sb, and Hg declined. Non-Hispanic blacks showed lower levels of almost all metals compared to either Mexican American or other unclassified race/ethnicities. Non-Hispanic whites displayed higher levels than non-Hispanic blacks for 9 of 11 metals. Smokers displayed significantly higher levels of Pb, Sb, W, and U than nonsmokers but significantly lower levels of Cd and Mo than nonsmokers. Pregnancy was found to be associated with higher levels of Ba, Cs, Co, Mo, Pb, W, and Hg compared to nonpregnant females. Levels of Mo, Cs, and Cd declined significantly during the pregnancy period but levels of Co rose during the same period.
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Jain RB. Effect of pregnancy on the levels of blood cadmium, lead, and mercury for females aged 17-39 years old: data from National Health and Nutrition Examination Survey 2003-2010. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2013; 76:58-69. [PMID: 23151210 DOI: 10.1080/15287394.2012.722524] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Data from the National Health and Nutrition Examination survey for the years 2003-2010 were used (n = 4700) to evaluate the effect of age, parity, body mass index (BMI), race/ethnicity, pregnancy, iron (Fe) storage status, smoking status, and fish/shellfish consumption on the levels of blood cadmium (Cd), lead (Pb), and total mercury (Hg)for females aged 17-39 years old. Regression analysis was used to fit models for each of the three metals. For all three metals, age was positively and BMI was negatively associated with levels of these metals in blood. Smokers had statistically significantly higher levels of Cd and Pb irrespective of race/ethnicity and Fe storage status as compared to nonsmokers. Novel to this study, pregnancy was found to be associated with significantly lower levels of Cd, Pb, and Hg irrespective of race/ethnicity and Fe storage status as compared to nonpregnant females. It is conceivable that pregnancy may thus accelerate clearance of these metals from blood. Fish/shellfish consumption was associated with higher levels of Hg but not with Cd levels.
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Chen X, Lei L, Tian L, Zhu G, Jin T. Bone mineral density and polymorphisms in metallothionein 1A and 2A in a Chinese population exposed to cadmium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2012; 423:12-17. [PMID: 22391096 DOI: 10.1016/j.scitotenv.2012.02.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 02/10/2012] [Accepted: 02/10/2012] [Indexed: 05/31/2023]
Abstract
Cadmium (Cd) effect on bone varies between individuals. We investigated whether genetic variation in metallothionein (MT)1A and MT2A associated with Cd induced bone loss in this study. A total of 465 persons (311 women and 154 men), living in control, moderately and heavily polluted areas, participated. The participants completed a questionnaire and the bone mineral density (BMD) was measured by dual energy x-ray absorptiometry (DXA) at the proximal radius and ulna. Samples of urine and blood were collected for determination of Cd in urine (UCd) and blood (BCd). Genotypes for polymorphisms in MT1A (rs11076161) and MT2A (rs10636) were determined by Taqman allelic discrimination assays. BCd had a weak association with variant alleles for MT1A (rs11076161) and MT2A (rs10636) in female living in the highly polluted group (p=0.08 and 0.05, respectively). A weak association was found between bone mineral density and MT2A polymorphisms variation (p=0.06) in female living in the highly polluted group. Only a weak association was found between bone mineral density and MT1A polymorphisms variation in female. Genetic variation in the MT1A and MT2A genes may not associate with bone loss caused by cadmium exposure.
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Affiliation(s)
- Xiao Chen
- Department of Bone Metabolism, Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
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