1
|
Ba Y, Feng Z, Fu X, Chen R, Jiao X, Du Y, Liu X, Huang H, Yu F, Zhou G. Mediation of mitochondrial DNA copy number and oxidative stress in fluoride-related bone mineral density alteration in Chinese farmers. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:184. [PMID: 38695941 DOI: 10.1007/s10653-024-01970-z] [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: 01/16/2024] [Accepted: 03/25/2024] [Indexed: 06/17/2024]
Abstract
Excessive fluoride can adversely affect bone mineral density (BMD). Oxidative stress and mitochondrial dysfunction are crucial mechanisms of health damage induced by fluoride. Here, a cross-sectional survey involving 907 Chinese farmers (aged 18-60) was carried out in Tongxu County in 2017, aiming to investigate the significance of mitochondrial DNA copy number (mtDNAcn) and oxidative stress in fluoride-related BMD change. Concentrations of urinary fluoride (UF), serum oxidative stress biomarkers, including total antioxidant capacity (T-AOC), total superoxide dismutase (T-SOD), glutathione peroxidase (GSH-Px), and malondialdehyde (MDA), as well as relative mtDNAcn in peripheral blood were determined. The multivariable linear model and mediation analysis were performed to assess associations between UF, oxidative stress, and relative mtDNAcn with BMD. Results showed that GSH-Px levels increased by 6.98 U/mL [95% confidence interval (CI) 3.41-10.56)] with each 1.0 mg/L increment of UF. After stratification, the T-AOC, relative mtDNAcn, and BMD decreased by 0.04 mmol/L (-0.08 ~ -0.01), 0.29-unit (-0.55 ~ -0.04), and 0.18-unit (-0.33 ~ -0.03) with every 1.0 mg/L elevation of UF in the excessive fluoride group (EFG, adults with UF > 1.6 mg/L), respectively. Furthermore, T-AOC and relative mtDNAcn were favorably related to the BMD in the EFG (β = 0.82, 95%CI 0.16-1.48 for T-AOC; β = 0.11, 95%CI 0.02-0.19 for relative mtDNAcn). Mediation analysis showed that relative mtDNAcn and T-AOC mediated 15.4% and 17.1% of the connection between excessive fluoride and reduced BMD, respectively. Findings suggested that excessive fluoride was related to lower BMD in adults, and the decrement of T-AOC and relative mtDNAcn partially mediate this relationship.
Collapse
Affiliation(s)
- Yue Ba
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
- Yellow River Institute for Ecological Protection & Regional Coordinated Development, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Zichen Feng
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Xiaoli Fu
- Department of Health Management, School of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Ruiqin Chen
- Department of Epidemiology, Jinshui District Center for Disease Control and Prevention, Zhengzhou, 450053, Henan, China
| | - Xuecheng Jiao
- Department of Epidemic Prevention and Control, Puyang Center for Disease Control and Prevention, Puyang, 457001, Henan, China
| | - Yuhui Du
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Xiaoxue Liu
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Hui Huang
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Fangfang Yu
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China
- Yellow River Institute for Ecological Protection & Regional Coordinated Development, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Guoyu Zhou
- Department of Occupational and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, 450001, Henan, China.
- Yellow River Institute for Ecological Protection & Regional Coordinated Development, Zhengzhou University, Zhengzhou, 450001, Henan, China.
| |
Collapse
|
2
|
Venkatraman G, Giribabu N, Mohan PS, Muttiah B, Govindarajan VK, Alagiri M, Abdul Rahman PS, Karsani SA. Environmental impact and human health effects of polycyclic aromatic hydrocarbons and remedial strategies: A detailed review. CHEMOSPHERE 2024; 351:141227. [PMID: 38253087 DOI: 10.1016/j.chemosphere.2024.141227] [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: 07/30/2023] [Revised: 12/19/2023] [Accepted: 01/13/2024] [Indexed: 01/24/2024]
Abstract
Polycyclic Aromatic Hydrocarbons (PAHs) profoundly impact public and environmental health. Gaining a comprehensive understanding of their intricate functions, exposure pathways, and potential health implications is imperative to implement remedial strategies and legislation effectively. This review seeks to explore PAH mobility, direct exposure pathways, and cutting-edge bioremediation technologies essential for combating the pervasive contamination of environments by PAHs, thereby expanding our foundational knowledge. PAHs, characterised by their toxicity and possession of two or more aromatic rings, exhibit diverse configurations. Their lipophilicity and remarkable persistence contribute to their widespread prevalence as hazardous environmental contaminants and byproducts. Primary sources of PAHs include contaminated food, water, and soil, which enter the human body through inhalation, ingestion, and dermal exposure. While short-term consequences encompass eye irritation, nausea, and vomiting, long-term exposure poses risks of kidney and liver damage, difficulty breathing, and asthma-like symptoms. Notably, cities with elevated PAH levels may witness exacerbation of bronchial asthma and chronic obstructive pulmonary disease (COPD). Bioremediation techniques utilising microorganisms emerge as a promising avenue to mitigate PAH-related health risks by facilitating the breakdown of these compounds in polluted environments. Furthermore, this review delves into the global concern of antimicrobial resistance associated with PAHs, highlighting its implications. The environmental effects and applications of genetically altered microbes in addressing this challenge warrant further exploration, emphasising the dynamic nature of ongoing research in this field.
Collapse
Affiliation(s)
- Gopinath Venkatraman
- Universiti Malaya Centre for Proteomics Research, Universiti Malaya, Kuala Lumpur, 50603, Malaysia; Department of Biochemistry, Saveetha Dental College, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai, 600 077, India.
| | - Nelli Giribabu
- Department of Physiology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Priyadarshini Sakthi Mohan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
| | - Barathan Muttiah
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
| | - Venkat Kumar Govindarajan
- Department of Chemistry, SRM Institute of Science and Technology, Ramapuram Campus, Chennai, 600 089, Tamil Nadu, India
| | - Mani Alagiri
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603 203, Chengalpattu district, Tamil Nadu, India.
| | | | - Saiful Anuar Karsani
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
| |
Collapse
|