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Wang N, Gao X, Huo Y, Li Y, Cheng F, Zhang Z. Lead exposure aggravates glucose metabolism disorders through gut microbiota dysbiosis and intestinal barrier damage in high-fat diet-fed mice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:3057-3068. [PMID: 38057285 DOI: 10.1002/jsfa.13197] [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: 07/17/2023] [Revised: 11/01/2023] [Accepted: 12/07/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Lead (Pb) is an ancient toxic metal and is still a major public health issue. Our previous study found that Pb exposure promotes metabolic disorders in obese mice, but the molecular mechanisms remain unclear. The present study explored the effects of Pb exposure on glucose homeostasis in mice fed a normal diet (ND) and high-fat diet (HFD) from the perspective of gut microbiota. RESULTS Pb exposure had little effect on glucose metabolism in ND mice, but exacerbated hyperglycemia and insulin resistance, and impaired glucose tolerance in HFD mice. Pb exposure impaired intestinal tight junctions and mucin expression in HFD mice, increasing intestinal permeability and inflammation. Moreover, Pb exposure altered the composition and structure of the gut microbiota and decreased short-chain fatty acids (SCFAs) levels in HFD mice. Correlation analysis revealed that the gut microbiota and SCFAs were significantly correlated with the gut barrier and glucose homeostasis. Furthermore, the fecal microbiota transplantation from Pb-exposed HFD mice resulted in glucose homeostasis imbalance, intestinal mucosal structural damage and inflammation in recipient mice. However, Pb did not exacerbate the metabolic toxicity in HFD mice under depleted gut microbiota. CONCLUSION The findings of the present study suggest that Pb induces impairment of glucose metabolism in HFD mice by perturbing the gut microbiota. Our study offers new perspectives on the mechanisms of metabolic toxicity of heavy metals and demonstrates that the gut microbiota may be a target of action for heavy metal exposure. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Nana Wang
- Department of Occupational and Environmental Health, School of Public Health, Soochow University, Suzhou, China
| | - Xue Gao
- Department of Occupational and Environmental Health, School of Public Health, Soochow University, Suzhou, China
| | - Yuan Huo
- Department of Occupational and Environmental Health, School of Public Health, Soochow University, Suzhou, China
| | - Yuting Li
- Department of Occupational and Environmental Health, School of Public Health, Soochow University, Suzhou, China
| | - Fangru Cheng
- Department of Occupational and Environmental Health, School of Public Health, Soochow University, Suzhou, China
| | - Zengli Zhang
- Department of Occupational and Environmental Health, School of Public Health, Soochow University, Suzhou, China
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Liang Y, Wang J, Wang T, Li H, Yin C, Liu J, Wei Y, Fan J, Feng S, Zhai S. Moderate selenium mitigates hand grip strength impairment associated with elevated blood cadmium and lead levels in middle-aged and elderly individuals: insights from NHANES 2011-2014. Front Pharmacol 2023; 14:1324583. [PMID: 38161700 PMCID: PMC10757617 DOI: 10.3389/fphar.2023.1324583] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024] Open
Abstract
Background: Selenium (Se) has been reported to have an antagonistic effect on heavy metals in animals. Nevertheless, there is a lack of epidemiological research examining whether Se can mitigate the adverse effects of cadmium (Cd) and lead (Pb) on hand grip strength (HGS) in middle-aged and elderly individuals. Methods: This study used data from the 2011-2014 National Health and Nutrition Examination Survey (NHANES). HGS measurements were conducted by trained examiners with a dynamometer. Concentrations of Se, Cd, and Pb in blood were determined via inductively coupled plasma mass spectrometry. We employed linear regression, restricted cubic splines, and quantile g-computation (qgcomp) to assess individual and combined associations between heavy metals and HGS. The study also explored the potential influence of Se on these associations. Results: In both individual metal and multi-metal models adjusted for confounders, general linear regression showed Se's positive association with HGS, while Cd and Pb inversely related to it. At varying Se-Cd and Se-Pb concentrations, high Se relative to low Se can attenuate Cd and Pb's HGS impact. An inverted U-shaped correlation exists between Se and both maximum and combined HGS, with Se's benefit plateauing beyond approximately 200 μg/L. Stratified analysis by Se quartiles reveals Cd and Pb's adverse HGS effects diminishing as Se levels increase. Qgcomp regression analysis detected Se alleviating HGS damage from combined Cd and Pb exposure. Subsequent subgroup analyses identified the sensitivity of women, the elderly, and those at risk of diabetes to HGS impairment caused by heavy metals, with moderate Se supplementation beneficial in mitigating this effect. In the population at risk for diabetes, the protective role of Se against heavy metal toxicity-induced HGS reduction is inhibited, suggesting that diabetic individuals should particularly avoid heavy metal-induced handgrip impairment. Conclusion: Blood Cd and Pb levels are negatively correlated with HGS. Se can mitigate this negative impact, but its effectiveness plateaus beyond 200 μg/L. Women, the elderly, and those at risk of diabetes are more vulnerable to HGS damage from heavy metals. While Se supplementation can help, its protective effect is limited in high diabetes risk groups.
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Affiliation(s)
- Yafeng Liang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Junqi Wang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Tianyi Wang
- School of Management, Beijing University of Chinese Medicine, Beijing, China
| | - Hangyu Li
- School of Life and Science, Beijing University of Chinese Medicine, Beijing, China
| | - Chaohui Yin
- School of Resources and Environment, Henan Agricultural University, Zhengzhou, Henan, China
| | - Jialin Liu
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yulong Wei
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Junxing Fan
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shixing Feng
- School of Life and Science, Beijing University of Chinese Medicine, Beijing, China
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
- Centre France Chine de la Médecine Chinoise, Selles sur Cher, France
| | - Shuangqing Zhai
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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Chang Z, Qiu J, Wang K, Liu X, Fan L, Liu X, Zhao Y, Zhang Y. The relationship between co-exposure to multiple heavy metals and liver damage. J Trace Elem Med Biol 2023; 77:127128. [PMID: 36630760 DOI: 10.1016/j.jtemb.2023.127128] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 12/15/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
BACKGROUND The impact of heavy metal exposure on human health has attracted widespread attention of researchers, and the impact of heavy metal exposure on liver function has also been confirmed, however, more attention is paid to the impact of single or two heavy metal exposures, and most epidemiological studies focus on heavy metal pollution areas. In this study, rural residents in non-heavy metal-contaminated areas in Northwest China were selected as the research objects to explore the comprehensive effects of co-exposure to multiple heavy metals on the liver, which can provide certain reference and support for related research. OBJECTIVES This study used a Bayesian nuclear machine model (BKMR) to evaluate the relationship between exposure to heavy metal mixtures and indicators of liver function in a population in rural Northwest China. RESULTS Exposure to higher concentrations of metal mixtures was positively correlated with total bilirubin, direct bilirubin, and aspartate aminotransferase, and negatively correlated with alanine aminotransferase, with Pb contributing the most to indicators of liver function. We also observed a possible interaction of Cd with other heavy metals in the effect of heavy metal mixtures on DB levels. CONCLUSIONS Concurrent exposure to higher concentrations of heavy metal mixtures (Cr, Co, Cd, and Pb) in rural China was associated with indicators representing poor liver function, of which the effect of lead on liver function should be focused. More prospective epidemiological studies and animal experiments need to be carried out to determine this relationship and possible mechanism.
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Affiliation(s)
- Zhenqi Chang
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - Jiangwei Qiu
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - Kai Wang
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - Xiaowei Liu
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - Ling Fan
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - Xiuying Liu
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - Yi Zhao
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China.
| | - Yuhong Zhang
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China.
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Wan H, Wang D, Liang Y, He Y, Ma Q, Li T, He Y, Guo H, Wang J, Li Z, Lin X, Liu L, Shen J. Single and combined associations of blood lead and essential metals with serum lipid profiles in community-dwelling adults. Front Nutr 2023; 10:1129169. [PMID: 37125027 PMCID: PMC10140323 DOI: 10.3389/fnut.2023.1129169] [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: 12/21/2022] [Accepted: 03/23/2023] [Indexed: 05/02/2023] Open
Abstract
Background Although several studies have examined the relationships between lead (Pb) exposure and serum lipid profiles, the associations of the metal mixture, including lead (Pb) and essential metals with lipid profiles, remain unclear. Objective To investigate the associations of the metal mixture including Pb and essential metals [magnesium (Mg), manganese (Mn), copper (Cu), iron (Fe), zinc (Zn), and calcium (Ca)] with serum lipid profiles [total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C)], as well as the potential interactions among the metals. Methods Nine hundred and ninety-eight Chinese community-dwelling adults completed a questionnaire and underwent checkups of anthropometric parameters, serum lipid profile levels (TC, TG, LDL-C, and HDL-C), and blood metal concentrations (Pb, Mg, Mn, Cu, Fe, Zn, and Ca). The multivariable linear regression, weighted quantile sum (WQS) regression, and Bayesian kernel machine regression (BKMR) were applied to evaluate the single and combined associations of blood Pb and essential metals with serum lipid profiles. Results In the multivariable linear regression model, the blood Pb was positively associated with TC, LDL-C, and HDL-C (p < 0.05, all), and the blood Mg were positively associated with serum TC, LDL-C, and Ln TG (p < 0.05, all). In the WQS regression and BKMR models, the metal mixture of blood Pb and the essential metals was positively associated with all of the serum lipid profiles. In addition, an inverse U-shaped association of Pb with Ln TG and the positive interactive effect between blood Pb and Mg levels on TC and LDL-C were found. Conclusion The levels of blood Pb, together with the essential metals, especially Mg levels, are suggested to be considered when assessing dyslipidemia risk. However, more evidence is still needed to validate the conclusions.
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Affiliation(s)
- Heng Wan
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong, China
| | - Dongmei Wang
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong, China
| | - Yongqian Liang
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong, China
| | - Yajun He
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong, China
| | - Qintao Ma
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong, China
| | - Tingting Li
- School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Yingbo He
- School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Hanquan Guo
- School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Jiachen Wang
- School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhao Li
- Department of Business Development, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong, China
| | - Xu Lin
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong, China
| | - Lan Liu
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong, China
- Lan Liu,
| | - Jie Shen
- Department of Endocrinology and Metabolism, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong, China
- *Correspondence: Jie Shen,
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