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Seydi E, Nambani AK, Khorasani A, Kamranfar F, Arjmand A, Pourahmad J. Mitochondrial administration alleviates lead- and cadmium-induced toxicity in rat renal cells. Cell Biol Int 2024. [PMID: 38682666 DOI: 10.1002/cbin.12165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/11/2024] [Accepted: 03/21/2024] [Indexed: 05/01/2024]
Abstract
The role of heavy metals such as lead (Pb) and cadmium (Cd) in the etiology of many diseases has been proven. Also, these heavy metals can affect the normal mitochondrial function. Mitochondrial administration therapy is one of the methods used by researchers to help improve mitochondrial defects and diseases. The use of isolated mitochondria as a therapeutic approach has been investigated in in vivo and in vitro studies. Accordingly, in this study, the effects of mitochondrial administration on the improvement of toxicity caused by Pb and Cd in renal proximal tubular cells (RPTC) have been investigated. The results showed that treatment to Pb and Cd caused an increase in the level of free radicals, lipid peroxidation (LPO) content, mitochondrial and lysosomal membrane damage, and also a decrease in the reduced glutathione content in RPTC. In addition, reports have shown an increase in oxidized glutathione content and changes in energy (ATP) levels. Following, the results have shown the protective role of mitochondrial administration in improving the toxicity caused by Pb and Cd in RPTC. Furthermore, the mitochondrial internalization into RPT cells is mediated through actin-dependent endocytosis. So, it could be suggested that the treatment of Pb- and Cd-induced cytotoxicity in RPTC could be carried out through mitochondria administration.
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Affiliation(s)
- Enayatollah Seydi
- Department of Occupational Health and Safety Engineering, School of Health, Alborz University of Medical Sciences, Karaj, Iran
- Research Center for Health, Safety and Environment, Alborz University of Medical Sciences, Karaj, Iran
| | - Alireza Kanani Nambani
- Student Research Committee, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Khorasani
- Student Research Committee, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzaneh Kamranfar
- Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdollah Arjmand
- Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Food and Drug, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Jalal Pourahmad
- Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Koszewicz M, Markowska K, Waliszewska-Prosol M, Poreba R, Gac P, Szymanska-Chabowska A, Mazur G, Wieczorek M, Ejma M, Slotwinski K, Budrewicz S. The impact of chronic co-exposure to different heavy metals on small fibers of peripheral nerves. A study of metal industry workers. J Occup Med Toxicol 2021; 16:12. [PMID: 33858451 PMCID: PMC8048227 DOI: 10.1186/s12995-021-00302-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 04/03/2021] [Indexed: 12/14/2022] Open
Abstract
Background Chronic exposure to heavy metals affects various organs, among them the brain and peripheral nerves. Polyneuropathy is mainly length-dependent with predominantly sensory symptoms. There have been few studies on small fiber neuropathy due to heavy metal intoxication. Methods We investigated 41 metal industry workers, mean age 51.3 ± 10.5 years, with at least 5 years’ professional exposure to heavy metals, and 36 age- and sex-matched healthy controls. We performed neurological examinations, and assessed blood levels of cadmium, lead, and zinc protoporphyrin, urine levels of arsenic, standard, sensory and motor electrophysiological tests in the ulnar and peroneal nerves, sympathetic skin responses from the palm and foot, and quantitative sensation testing from dermatomes C8 and S1. Discussion The results of standard conduction tests of all nerves significantly differed between groups. The latency of sympathetic skin responses achieved from the foot was also statistically significantly prolonged in the study group. Significant differences were seen in both C8 and S1 regions for temperature and pain thresholds, and for vibratory threshold only in the S1 region, while the dispersions of low and high temperatures were important exclusively in the C8 region. Conclusions We can conclude that co-exposure to many heavy metals results in explicit impairment of peripheral nerves. The lesion is more pronounced within small fibers and is predominantly connected with greater impairment of temperature-dependent pain thresholds. The evaluation of small fiber function should be considered in the early diagnosis of toxic polyneuropathy or in low-dose exposure to heavy metals.
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Affiliation(s)
- Magdalena Koszewicz
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland.
| | - Katarzyna Markowska
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland
| | | | - Rafał Poreba
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, Borowska 213, 50-550, Wroclaw, Poland
| | - Paweł Gac
- Department of Hygiene, Wroclaw Medical University, J. Mikulicza-Radeckiego 7, 50-345, Wroclaw, Poland
| | - Anna Szymanska-Chabowska
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, Borowska 213, 50-550, Wroclaw, Poland
| | - Grzegorz Mazur
- Department of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, Borowska 213, 50-550, Wroclaw, Poland
| | - Malgorzata Wieczorek
- Faculty of Earth Sciences and Environmental Management, University of Wroclaw, Plac Uniwersytecki 1, 50-137, Wroclaw, Poland
| | - Maria Ejma
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland
| | - Krzysztof Slotwinski
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland
| | - Slawomir Budrewicz
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556, Wroclaw, Poland
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Yu Y, Yu L, Zhou X, Qiao N, Qu D, Tian F, Zhao J, Zhang H, Zhai Q, Chen W. Effects of acute oral lead exposure on the levels of essential elements of mice: a metallomics and dose-dependent study. J Trace Elem Med Biol 2020; 62:126624. [PMID: 32717576 DOI: 10.1016/j.jtemb.2020.126624] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/04/2020] [Accepted: 06/11/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Lead (Pb) has been reported to disturb the metabolism of essential elements, such as calcium (Ca), magnesium (Mg), iron (Fe) and zinc (Zn) in vivo. This study focused on the relationship between various dose of Pb and the essential elements. METHODS 50 healthy male C57BL/6 mice underwent oral administration of 0.2 mL lead acetate trihydrate solution (0, 20, 100, 500, and 1000 mg Pb/day/kg body weight) for 3 days. The concentrations of Pb and four essential elements (Ca, Zn, Fe and Mg) in the blood, kidney, liver, bone and brain were quantified with inductively coupled plasma mass spectrometry. RESULTS Various doses of Pb led to significant increases in the contents of Ca, Fe and Zn in the liver, and decreased contents of Mg and Fe in the blood in a dose-dependent pattern. The Pb dose of 20 mg/kg reduced the concentration of bone Ca, which did not continue to show an obvious decline with continued increases in the oral Pb dose. Pb also caused alterations in the Mg distribution pattern, and decreased the correlation of Mg, Ca and Zn in the brain, both findings were dose-dependent. In addition to the changes in metallomics, the related oxidative stress was exacerbated, but no significant changes were detected in hepatic and renal histopathological lesions after a short period of Pb exposure. CONCLUSIONS This study contributes to a thorough analysis of the Pb-poisoning mechanism, and indicates that the concentrations of essential elements could be used as sensitive toxicological indicators of Pb exposure.
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Affiliation(s)
- Yaqi Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; International Joint Research Laboratory for Probiotics at Jiangnan University, Wuxi, Jiangsu, 214122, China.
| | - Xingting Zhou
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Nanzhen Qiao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Dingwu Qu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; International Joint Research Laboratory for Probiotics at Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, 225004, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, 214122, China; (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, 225004, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; International Joint Research Laboratory for Probiotics at Jiangnan University, Wuxi, Jiangsu, 214122, China.
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, 214122, China; (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, 225004, China; Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology & Business University, Beijing, 100048, China
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Abd-Elhakim YM, El Bohi KM, El Sharkawy NI, Ghali MA, Haseeb S. The impacts of individual and combined exposure to cadmium and lead on intraocular pressure, electroretinography, and residual changes in the rabbit eyes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:33321-33328. [PMID: 31520382 DOI: 10.1007/s11356-019-06446-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Accepted: 09/05/2019] [Indexed: 06/10/2023]
Abstract
The human eye is very vulnerable to various environmental pollutants. Cadmium (Cd) and lead (Pb) are widely spread heavy metals. The goal of the existing study is to explore the impact of single or joint exposure to Cd and Pb on the eye indicators. In this study, male New Zealand white rabbits were treated orally for 30 days with Cd (5 mg Cd Cl2/kg bw) associated or not with Pb (12.5 mg lead acetate/kg bw). Fundus and slit lamp examinations, electroretinography (ERG), intraocular pressure (IOP), Cd and Pb residues, and the histopathological picture of the eye were studied. The results revealed that the oral dosing of Cd or Pb evoked a significant (p < 0.05) decline in a- and b-wave amplitudes, under scotopic conditions, and IOP values. Single Pb or Cd treatment showed a significant (p < 0.001) increase in their residues in the whole eye tissue of the Pb- or Cd-treated group. Eye structures of Cd- or Pb-intoxicated rabbit showed mild degenerated changes of cornea and sclera tissues with the presence of irregular variably sized eosinophilic droplets in the lens. Notably, the simultaneous exposure to Cd and Pb leads to an antagonistic outcome in all of the estimated parameters. These findings concluded that oral exposure to Cd or Pb could significantly disturb the vision but their joint exposure caused an opposing effect on nearly all of these disturbances.
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Affiliation(s)
- Yasmina M Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
| | - Khlood M El Bohi
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Nabela I El Sharkawy
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Manar A Ghali
- Ophthalmology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Sarah Haseeb
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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Xiao ZL, Tian W, Xu ZL, Sun YM. Development of a chemiluminescent enzyme immunoassay to detect cadmium in cereal samples. FOOD AGR IMMUNOL 2018. [DOI: 10.1080/09540105.2018.1527295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- Zhi-Li Xiao
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Wei Tian
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Yuan-Ming Sun
- Guangdong Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou, People’s Republic of China
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Abd-Elhakim YM, El Sharkawy NI, El Bohy KM, Gomaa M, Haseeb S. Morphological, biochemical, and histopathological postmortem ocular indices following subchronic exposure to cadmium and/or lead in a rabbit model. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:6619-6632. [PMID: 29260467 DOI: 10.1007/s11356-017-1043-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 12/12/2017] [Indexed: 06/07/2023]
Abstract
Cadmium (Cd) and lead (Pb) are ubiquitous environmental pollutants. There is a dearth of information on the mutual interaction between the antemortem metal intoxication and the postmortem changes of the eye. Thus, this study aimed to follow the morphological, biochemical, histopathological ocular perturbations and the retinal DNA damage up to 8 h postmortem (PM) in Cd and/or Pb intoxicated rabbits. The animals orally received 5 mg Cd Cl2/kg bw and/or 12.5 mg lead acetate/kg bw for 30 consecutive days. At time of death, eye pupil of different groups had a normal diameter except Pb-intoxicated group had marked myosis. After 8 h of death, different rabbit's eye corneas appeared wrinkled and covered with thin white cloud while the pupils were in the mydriatic stage. Up to 8 h PM, the individual exposure to Cd or Pb resulted in a significant elevation in GGT, urea, K, DNA damage and obvious retinal lesions. However, their co-exposure evoked an antagonistic outcome. The eye of Cd and/or Pb intoxicated rabbit showed mildly degenerated tissue of cornea and sclera and the presence of irregular eosinophilic droplets of variably size in the lens with a gradual degeneration and vacuolization in the different cell layers of retina especially ganglion up to 8 h PM. Also, by increasing post mortem interval (PMI), retinal DNA damage in Cd and/or Pb intoxicated group significantly decreased. It is concluded that Cd and/or Pb intoxication induced ocular alterations which retain the same trend in correlation with PMI as natural deaths except for the retinal DNA damage. Also, the simultaneous exposure to Cd and Pb evoked an antagonistic outcome in the eye. The findings of the current study should be taken into consideration when estimating PMI in areas with high Cd and/or Pb contamination.
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Affiliation(s)
- Yasmina Mohammed Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
| | - Nabela I El Sharkawy
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Khlood M El Bohy
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Mohammed Gomaa
- Department of Surgery, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Sarah Haseeb
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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7
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Jacobo-Estrada T, Santoyo-Sánchez M, Thévenod F, Barbier O. Cadmium Handling, Toxicity and Molecular Targets Involved during Pregnancy: Lessons from Experimental Models. Int J Mol Sci 2017; 18:ijms18071590. [PMID: 28737682 PMCID: PMC5536077 DOI: 10.3390/ijms18071590] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 07/18/2017] [Accepted: 07/18/2017] [Indexed: 12/16/2022] Open
Abstract
Even decades after the discovery of Cadmium (Cd) toxicity, research on this heavy metal is still a hot topic in scientific literature: as we wrote this review, more than 1440 scientific articles had been published and listed by the PubMed.gov website during 2017. Cadmium is one of the most common and harmful heavy metals present in our environment. Since pregnancy is a very particular physiological condition that could impact and modify essential pathways involved in the handling of Cd, the prenatal life is a critical stage for exposure to this non-essential element. To give the reader an overview of the possible mechanisms involved in the multiple organ toxic effects in fetuses after the exposure to Cd during pregnancy, we decided to compile some of the most relevant experimental studies performed in experimental models and to summarize the advances in this field such as the Cd distribution and the factors that could alter it (diet, binding-proteins and membrane transporters), the Cd-induced toxicity in dams (preeclampsia, fertility, kidney injury, alteration in essential element homeostasis and bone mineralization), in placenta and in fetus (teratogenicity, central nervous system, liver and kidney).
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Affiliation(s)
- Tania Jacobo-Estrada
- Departamento de Sociedad y Política Ambiental, CIIEMAD, Instituto Politécnico Nacional, 30 de Junio de 1520 s/n, La Laguna Ticomán, Ciudad de México 07340, Mexico.
| | - Mitzi Santoyo-Sánchez
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. Instituto Politécnico Nacional 2508, Gustavo A. Madero, San Pedro Zacatenco, Ciudad de México 07360, Mexico.
| | - Frank Thévenod
- Department of Physiology, Pathophysiology & Toxicology and ZBAF (Centre for Biomedical Education and Research), Faculty of Health-School of Medicine, Witten/Herdecke University, Stockumer Str 12 (Thyssenhaus), D 58453 Witten, Germany.
| | - Olivier Barbier
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. Instituto Politécnico Nacional 2508, Gustavo A. Madero, San Pedro Zacatenco, Ciudad de México 07360, Mexico.
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Xue S, Shi L, Wu C, Wu H, Qin Y, Pan W, Hartley W, Cui M. Cadmium, lead, and arsenic contamination in paddy soils of a mining area and their exposure effects on human HEPG2 and keratinocyte cell-lines. ENVIRONMENTAL RESEARCH 2017; 156:23-30. [PMID: 28314151 DOI: 10.1016/j.envres.2017.03.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/05/2017] [Accepted: 03/10/2017] [Indexed: 06/06/2023]
Abstract
UNLABELLED A mining district in south China shows significant metal(loid) contamination in paddy fields. In the soils, average Pb, Cd and As concentrations were 460.1, 11.7 and 35.1mgkg-1 respectively, which were higher than the environmental quality standard for agricultural soils in China (GB15618-1995) and UK Clea Soil Guideline Value. The average contents of Pb, Cd and As in rice were 5.24, 1.1 and 0.7mgkg-1 respectively, which were about 25, 4.5 or 2.5 times greater than the limit values of the maximum safe contaminant concentration standard in food of China (GB 2762-2012), and about 25, 10 or 1 times greater than the limit values of FAO/WHO standard. The elevated contents of Pb, Cd and As detected in soils around the factories, indicated that their spatial distribution was influenced by anthropogenic activity, while greater concentrations of Cd in rice appeared in the northwest region of the factories, indicating that the spatial distribution of heavy metals was also affected by natural factors. As human exposure around mining districts is mainly through oral intake of food and dermal contact, the effects of these metals on the viability and MT protein of HepG2 and KERTr cells were investigated. The cell viability decreased with increasing metal concentrations. Co-exposure to heavy metals (Pb+Cd) increased the metals (Pb or Cd)-mediated MT protein induction in both human HepG2 and KERTr cells. Increased levels of MT protein will lead to greater risk of carcinogenic manifestations, and it is likely that chronic exposure to metals may increase the risk to human health. Nevertheless, when co-exposure to two or more metals occur (such as As+Pb), they may have an antagonistic effect thus reducing the toxic effects of each other. CAPSULE Metal contaminations in paddy soils and rice were influenced by anthropogenic activity; metal co-exposure induced MT protein in human cells.
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Affiliation(s)
- Shengguo Xue
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Lizheng Shi
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Chuan Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China.
| | - Hui Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Yanyan Qin
- Shenzhen Polytechnic, Shenzhen 518055, China
| | - Weisong Pan
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - William Hartley
- Crop and Environment Sciences Department, Harper Adams University, Newport, Shropshire, TF10 8NB, United Kingdom
| | - Mengqian Cui
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
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9
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Luo T, Liu G, Long M, Yang J, Song R, Wang Y, Yuan Y, Bian J, Liu X, Gu J, Zou H, Liu Z. Treatment of cadmium-induced renal oxidative damage in rats by administration of alpha-lipoic acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:1832-1844. [PMID: 27796992 DOI: 10.1007/s11356-016-7953-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 10/20/2016] [Indexed: 06/06/2023]
Abstract
Cadmium (Cd) is a toxic heavy metal that is widespread and nephrotoxic, but the mechanism of its toxicity is not well understood. Alpha-lipoic acid (α-LA) has a protective effect on Cd-induced oxidative stress, but the underlying mechanism is also not clear. This study aimed to confirm that Cd causes renal damage and to explore the potential underlying mechanism of α-LA to the kidney. Rats were randomly divided into four groups: control group, Cd group (50 mg/L CdAc2), Cd+α-LA group (50 mg/L CdAc2 + 50 mg/kg body wt/day α-LA), and α-LA group (50 mg/kg body wt/day). The rats were exposed to Cd via drinking water and α-LA in the form of gavage at the same time every day. After 12 weeks, the activity of antioxidant enzymes and the level of Cd in the kidney were analyzed. Renal damage was evaluated based on histopathological and ultrastructure examinations. The apoptosis index was determined based on the results of western blotting and qRT-PCR. Our results indicate that accumulation of Cd causes serious kidney damage and α-LA has a protective effect against Cd-induced oxidative stress and apoptosis. Further, the findings indicate that the antioxidant, Cd chelation, and antiapoptotic activities of α-LA are the key factors that alleviate nephrotoxicity.
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Affiliation(s)
- Tongwang Luo
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Gang Liu
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Mengfei Long
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Jinlong Yang
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Ruilong Song
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Yi Wang
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Yan Yuan
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Jianchun Bian
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Xuezhong Liu
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Jianhong Gu
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Hui Zou
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China
| | - Zongping Liu
- College of Veterinary Medicine, Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, 225009, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, China.
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10
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Cobbina SJ, Chen Y, Zhou Z, Wu X, Zhao T, Zhang Z, Feng W, Wang W, Li Q, Wu X, Yang L. Toxicity assessment due to sub-chronic exposure to individual and mixtures of four toxic heavy metals. JOURNAL OF HAZARDOUS MATERIALS 2015; 294:109-120. [PMID: 25863025 DOI: 10.1016/j.jhazmat.2015.03.057] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 03/02/2015] [Accepted: 03/26/2015] [Indexed: 06/04/2023]
Abstract
Humans are exposed to a cocktail of heavy metal toxicants in the environment. Though heavy metals are deleterious, there is a paucity of information on toxicity of low dose mixtures. In this study, lead (Pb) (0.01mg/L), mercury (Hg) (0.001mg/L), cadmium (Cd) (0.005mg/L) and arsenic (As) (0.01mg/L) were administered individually and as mixtures to 10 groups of 40 three-week old mice (20 males and 20 females), for 120 days. The study established that low dose exposures induced toxicity to the brain, liver, and kidney of mice. Metal mixtures showed higher toxicities compared to individual metals, as exposure to low dose Pb+Hg+Cd reduced brain weight and induced structural lesions, such as neuronal degeneration in 30-days. Pb+Hg+Cd and Pb+Hg+As+Cd exposure induced hepatocellular injury to mice evidenced by decreased antioxidant activities with marginal increases in MDA. These were accentuated by increases in ALT, AST and ALP. Interactions in metal mixtures were basically synergistic in nature and exposure to Pb+Hg+As+Cd induced renal tubular necrosis in kidneys of mice. This study underlines the importance of elucidating the toxicity of low dose metal mixtures so as to protect public health.
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Affiliation(s)
- Samuel J Cobbina
- School of the Environment, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Yao Chen
- School of the Environment, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Zhaoxiang Zhou
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China
| | - Xueshan Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China
| | - Ting Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China
| | - Zhen Zhang
- School of the Environment, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Weiwei Feng
- School of Food and Biological Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Wei Wang
- School of Food and Biological Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Qian Li
- School of Pharmacy, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Xiangyang Wu
- School of the Environment, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China.
| | - Liuqing Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China.
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11
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Zhu H, Jia Y, Cao H, Meng F, Liu X. Biochemical and histopathological effects of subchronic oral exposure of rats to a mixture of five toxic elements. Food Chem Toxicol 2014; 71:166-75. [DOI: 10.1016/j.fct.2014.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 05/29/2014] [Accepted: 06/09/2014] [Indexed: 11/16/2022]
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12
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Yuan G, Dai S, Yin Z, Lu H, Jia R, Xu J, Song X, Li L, Shu Y, Zhao X. Toxicological assessment of combined lead and cadmium: acute and sub-chronic toxicity study in rats. Food Chem Toxicol 2014; 65:260-8. [PMID: 24394482 DOI: 10.1016/j.fct.2013.12.041] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 11/30/2013] [Accepted: 12/13/2013] [Indexed: 01/18/2023]
Abstract
The exposure to chemical mixtures is a common and important determinant of toxicity and receives concern for their introduction by inhalation and ingestion. However, few in vivo mixture studies have been conducted to understand the health effects of chemical mixtures compared with single chemicals. In this study, the acute and 90day sub-chronic toxicity tests of combined Pb and Cd were conducted. In the acute toxicity test, the LD50 value of Pb(NO3)2 and CdCl2 mixture by the oral route was 2696.54mg/kg by Bliss method. The sub-chronic treatment revealed that the low-dose combination of Pb and Cd exposures can significantly change the physiological and biochemical parameters of the blood of Sprague-Dawley (SD) rats with dose-response relationship and causes microcytic hypochromic anemia and the damages of liver and kidney of the SD rats to various degrees. Histopathological exams showed that the target organs of Pb and Cd were testicle, liver, and kidneys. These observations suggest that Pb and Cd are practically additive-toxic for the SD rats in oral acute toxicity studies. The lowest observed adverse-effect level in rats may be lower than a dose of 29.96mg/(kgbwday) when administered orally for 90 consecutive days.
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Affiliation(s)
- Guiping Yuan
- Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Shujun Dai
- Analytical & Testing Center, Sichuan University, Chengdu 610065, China; College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China
| | - Zhongqiong Yin
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China.
| | - Hongke Lu
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China
| | - Renyong Jia
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China
| | - Jiao Xu
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China
| | - Xu Song
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China
| | - Li Li
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China
| | - Yang Shu
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China
| | - Xinghong Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China
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13
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Li Y, Zhang B, Li H, Yang L, Ye B, Wang W, Rosenberg M. Biomarkers of lead exposure among a population under environmental stress. Biol Trace Elem Res 2013; 153:50-7. [PMID: 23536264 DOI: 10.1007/s12011-013-9648-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 03/15/2013] [Indexed: 11/25/2022]
Abstract
This study aimed to evaluate the relationship between blood lead and serum creatinine and blood lead and serum urea nitrogen levels as biomarkers of lead exposure from subjects living in a historic polymetallic mining area in China. Elevated levels were found for blood lead, serum creatinine, and serum urea nitrogen in the mining area with mean values at 245.65 μg/l, 74.16 μmol/l, and 12.79 mmol/l, which were significantly higher than those in the control area, respectively. Moreover, the coefficients between paired results for blood lead and serum creatinine and blood lead and serum urea nitrogen were positively statistically significant (serum creatinine vs. blood lead, r = 0.35, p < 0.05; serum urea nitrogen vs. blood lead, r = 0.48, p < 0.05). With respect to the effects of sex and age on the blood lead, serum creatinine, and serum urea nitrogen levels, data analysis revealed there was a tendency for higher blood lead, serum creatinine, and serum urea nitrogen levels in females than in males, and the levels of blood lead, serum creatinine, and serum urea nitrogen increased among older residents. We conclude that females and the older population in the mining area are more susceptible to lead exposure. Blood lead, serum creatinine, and serum urea nitrogen can be useful biomarkers of lead exposure among populations under environmental stress.
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Affiliation(s)
- Yonghua Li
- Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, Beijing 100101, China.
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14
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Kim Y, Ha EH, Park H, Ha M, Kim Y, Hong YC, Kim EJ, Kim BN. Prenatal lead and cadmium co-exposure and infant neurodevelopment at 6 months of age: The Mothers and Children's Environmental Health (MOCEH) study. Neurotoxicology 2013; 35:15-22. [DOI: 10.1016/j.neuro.2012.11.006] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Revised: 11/26/2012] [Accepted: 11/26/2012] [Indexed: 01/03/2023]
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15
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Wang L, Lin S, Li Z, Yang D, Wang Z. Protective effects of puerarin on experimental chronic lead nephrotoxicity in immature female rats. Hum Exp Toxicol 2012; 32:172-85. [DOI: 10.1177/0960327112462729] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lin Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, People’s Republic of China
| | - Shuqian Lin
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences, Jinan, People’s Republic of China
| | - Zifa Li
- Laboratory Animal Center of Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
| | - Dubao Yang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, People’s Republic of China
| | - Zhenyong Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, People’s Republic of China
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16
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Smith E, Gancarz D, Rofe A, Kempson IM, Weber J, Juhasz AL. Antagonistic effects of cadmium on lead accumulation in pregnant and non-pregnant mice. JOURNAL OF HAZARDOUS MATERIALS 2012; 199-200:453-456. [PMID: 22118847 DOI: 10.1016/j.jhazmat.2011.11.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 10/21/2011] [Accepted: 11/03/2011] [Indexed: 05/31/2023]
Abstract
People are frequently exposed to combinations of contaminants but there is a paucity of data on the effects of mixed contaminants at low doses. This study investigated the influence of cadmium (Cd) on lead (Pb) accumulation in pregnant and non-pregnant mice following exposure to contaminated soil. Exposure to Pb from contaminated soils increased Pb accumulation in both pregnant and non-pregnant mice compared to unexposed control animals (pregnant and non-pregnant). Lead accumulation in the liver and kidneys of exposure pregnant mice (40 ± 15 mg Pb kg(-1)) was significantly higher (P<0.05) than concentrations detected in control pregnant mice (<1 mg Pb kg(-1)). The presence of Cd in contaminated soil had a major effect on the Pb and Fe accumulation in the kidneys and liver, respectively. This study shows that Pb uptake is mediated by the presence of Cd in the co-contaminated soil and demonstrates that further research is required to investigate the influence of co-contaminants on human exposure at sub-chronic concentrations.
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Affiliation(s)
- Euan Smith
- Centre for Environmental Risk Assessment and Remediation, University of South Australia, Mawson Lakes, SA 5095, Australia.
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17
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Müller YMR, Kobus K, Schatz JC, Ammar D, Nazari EM. Prenatal lead acetate exposure induces apoptosis and changes GFAP expression during spinal cord development. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2012; 75:223-229. [PMID: 21908043 DOI: 10.1016/j.ecoenv.2011.08.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 08/05/2011] [Accepted: 08/06/2011] [Indexed: 05/31/2023]
Abstract
Lead is an important heavy metal pollutant in the environment, and it induces neurodevelopmental toxicity, which is characterized by histological, ultrastructural, and neurochemical changes in the central nervous system. The aim of this study was to evaluate the effects of prenatal acute lead exposure on apoptosis, GFAP expression, and lead deposition in the developing spinal cord. Chick embryos were exposed to 150μg or 450μg doses of lead acetate via yolk sac at E3 or E5 embryonic ages and incubated for six days. Lead deposition was observed in the ependymal cells, developing dorsal, and ventral horns, and in the white matter of all the exposed embryos. TUNEL-positive cells were found in all layers of the spinal cord of the control and treated embryos, and lead exposure resulted in a significant increase in the numerical density of the apoptotic cells. Control embryos showed intense GFAP expression in the ependymal cells of the roof and floor plates, and in the gray and white matters; whereas exposure to lead reduced GFAP reactivity. In ovo lead exposure induces apoptosis, and reduces GFAP expression in the nervous system of the chick embryos, which may cause impairments during neuronal development and consequences in childhood and adulthood.
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Affiliation(s)
- Yara Maria Rauh Müller
- Departamento de Biologia Celular, Universidade Federal de Santa Catarina, Trindade, Florianópolis, SC, Brazil.
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18
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Wang L, Wang H, Li J, Chen D, Liu Z. Simultaneous effects of lead and cadmium on primary cultures of rat proximal tubular cells: interaction of apoptosis and oxidative stress. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2011; 61:500-11. [PMID: 21287161 DOI: 10.1007/s00244-011-9644-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Accepted: 01/12/2011] [Indexed: 05/23/2023]
Abstract
The combined effects of lead (Pb) and cadmium (Cd) on primary cultures of rat proximal tubular (rPT) cells were studied. These cells were either treated with Pb acetate (0.5 and 1 μM) alone, Cd acetate (2.5 and 5 μM) alone, or a combination of Pb and Cd acetate, and then joint cytotoxicity was evaluated. The results showed that the combination of these two metals decreased cell viability and increased the number of apoptotic and necrotic cells and lactate dehydrogenase release synergistically. Simultaneously, increased intracellular reactive oxygen species, malondialdehyde, and calcium levels and decreased mitochondrial membrane potential, intracellular acidification, and inhibition of Na(+), K(+)-, and Ca(2+)-ATPase activities were shown during the exposure. In addition, apoptotic morphological changes induced by these treatments in rPT cells were demonstrated by Hoechst 33258 staining. The apoptosis was markedly prevented by N-acetyl-L-cysteine, whereas necrosis was not affected. In summary, there was a synergistic cytototic effect of Pb combined with Cd on rPT cells. Cell death induced by Pb-Cd mixture was mediated by an apoptotic and a necrotic mechanism. Apoptotic death was the chief mechanism. Changes of intracellular events were intimately correlated with both oxidative stress and mitochondrial dysfunction, which promoted the development of apoptosis.
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Affiliation(s)
- Lin Wang
- College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou 225009, People's Republic of China
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19
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Dai W, Fu L, Du H, Jin C, Xu Z. Changes in growth performance, metabolic enzyme activities, and content of Fe, Cu, and Zn in liver and kidney of tilapia (Oreochromis niloticus) exposed to dietary Pb. Biol Trace Elem Res 2009; 128:176-83. [PMID: 18953496 DOI: 10.1007/s12011-008-8259-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2008] [Accepted: 10/07/2008] [Indexed: 10/21/2022]
Abstract
Tilapia (Oreochromis niloticus) were exposed to 0, 100, 400, and 800 microg/g concentrations of Pb in diet for 60 days, and changes in growth performance, metabolic enzyme activities, and essential trace elements (Fe, Cu, and Zn) content in liver and kidney were investigated. Daily weight gain, feed conversation ratio, and survival of tilapia were not significantly affected by dietary Pb. Alanine transaminase (ALT), aspartate transaminase (AST), and lactate dehydrogenase (LDH) activities in liver and kidney were affected by dietary Pb in a dissimilar way: Pb concentration-related decreases in ALT, AST, and LDH activities were observed in kidney, while these enzyme activities in liver were stimulated in a Pb concentration-dependent manner. It was demonstrated that the inhibitory effects of dietary Pb on alkaline phosphatase, Na, K-adenosine triphosphatase (ATPase), Ca, and Mg-ATPase activities in both liver and kidney were Pb concentration-dependent. It was also indicated that the content of Fe, Cu, and Zn in liver and kidney decreased with the increasing dietary Pb concentrations. The results suggested that long-term dietary Pb exposure could affect metabolic enzyme activities and the content of Fe, Cu, and Zn in liver and kidney, whereas growth impairment was not observed in tilapia.
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Affiliation(s)
- Wei Dai
- Key Laboratory for Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, Zhejiang University, Hangzhou, People's Republic of China
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20
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Wang L, Chen D, Wang H, Liu Z. Effects of lead and/or cadmium on the expression of metallothionein in the kidney of rats. Biol Trace Elem Res 2009; 129:190-9. [PMID: 19096765 DOI: 10.1007/s12011-008-8288-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2008] [Accepted: 12/01/2008] [Indexed: 11/29/2022]
Abstract
Lead acetate (300 mg/L) and/or cadmium chloride (50 mg/L) were administered as drinking water of Sprague-Dawley rats for 8 weeks to investigate the possible combined effect of these metals on the expression of metallothionein (MT) in kidneys. Immunohistochemical staining and real-time quantitative polymerase chain reaction analyses were performed on kidney samples to identify the distribution of MT and to quantify the relative expression levels of MT-1 and MT-2 gene, respectively. There is no significant difference in distribution of the intensity, amount of MT immunostaining, and expression level of MT-1 and MT-2 gene in the kidneys between the lead group and control group (P > 0.05), whereas those in the cadmium group and (Pb + Cd) group were significantly higher than that in the control group (P < 0.01). Compared to the (Pb + Cd) group with the lead or cadmium group, the expression level of MT-1 and MT-2 gene increased significantly (P < 0.01). In summary, there was an obvious synergistic effect of lead combined with cadmium on the expression of metallothionein in the kidney of rats.
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Affiliation(s)
- Lin Wang
- College of Veterinary Medicine, Yangzhou University, 12 East Wenhui Road, Yangzhou, People's Republic of China
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21
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Massó EL, Corredor L, Antonio MT. Oxidative damage in liver after perinatal intoxication with lead and/or cadmium. J Trace Elem Med Biol 2007; 21:210-6. [PMID: 17697960 DOI: 10.1016/j.jtemb.2007.03.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2006] [Accepted: 03/05/2007] [Indexed: 10/23/2022]
Abstract
Lead acetate (300 mg Pb/L) and/or cadmium acetate (10mg Cd/L) in blood and liver were administrated as drinking water to pregnant Wistar rats from day 1 of pregnancy to parturition (day 0) or until weaning (day 21), to investigate the toxic effects in blood and in the liver. Both metals produced mycrocitic anaemia in the pups as well as oxidative damage in the liver, as suggested by the significant increase in TBARS production and the high catalase activity. Moreover, intense alkaline and acid phosphatase activity, used as biomarkers of liver adaptation to damaging factors, was observed. In addition, the toxikinetics are different for Pb and Cd: while Cd is a hepatotoxic from day 0, Pb is not until day 21. Finally, simultaneous perinatal administration of both metals seems to protect, at least, in the liver TBARS production against the toxicity produced by Cd or Pb separately.
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Affiliation(s)
- Elvira Luján Massó
- Department of Animal Physiology II, Biology College, Complutense University of Madrid, Madrid, Spain.
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22
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Brandão R, Santos FW, Zeni G, Rocha JBT, Nogueira CW. DMPS and N-acetylcysteine induced renal toxicity in mice exposed to mercury. Biometals 2006; 19:389-98. [PMID: 16841248 DOI: 10.1007/s10534-005-4020-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2005] [Accepted: 10/12/2005] [Indexed: 01/17/2023]
Abstract
Acute effects of mercuric chloride (HgCl2) were evaluated on mice. Mice received a single dose of HgCl2 (4.6 mg/kg, subcutaneously) for three consecutive days. Thirty minutes after the last injection with HgCl2, mice received one single injection of 2,3-dimercapto-1-propanesulfonic acid (DMPS) or N-acetylcysteine (NAC) or diphenyl diselenide (PhSe)2. DMPS, NAC and (PhSe)2 were utilized as therapy against mercury exposure. At 24 h after the last HgCl2 injection, blood, liver and kidney samples were collected. delta-Aminolevulinate dehydratase (delta-ALA-D) and Na+, K- (+) ATPase activities, thiobarbituric acid-reactive substances (TBARS), non-protein thiols (NPSH) and ascorbic acid concentrations were evaluated. Plasma aspartate (AST) and alanine (ALT) aminotransferase activities, as well as urea and creatinine levels were determined. The group of mice exposed to Hg + (PhSe)2 presented 100% of lethality. Exposure with HgCl2 caused a decrease on the body weight gain and treatments did not modify this parameter. delta-ALA-D, AST and ALT activities, TBARS, ascorbic acid levels and NPSH (hepatic and erythrocytic) levels were not changed after HgCl2 exposure. HgCl2 caused an increase in renal NPSH content and therapies did not modify these levels. Mice treated with (PhSe)2, Hg + NAC and Hg + DMPS presented a reduction in plasma NPSH levels. Creatinine and urea levels were increased in mice exposed to Hg + NAC, while Hg + DMPS group presented an increase only in urea level. Na+, K- (+) ATPase activity was inhibited in mice exposed to Hg + DMPS and Hg + NAC. In conclusion, therapies with (PhSe)2, DMPS and NAC following mercury exposure must be better studied because the formation of more toxic complexes with mercury, which can mainly damage renal tissue.
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Affiliation(s)
- Ricardo Brandão
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
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. GE, . MA, . FO. Pretreatment of Rats with α-tocopherol Alter Liver and Kidney Protein, Alkaline Phosphatase Activity and Phospholipid Profile after 24 Hour Intoxication with Cadmium. JOURNAL OF MEDICAL SCIENCES 2006. [DOI: 10.3923/jms.2006.615.620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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24
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Tokimoto T, Kawasaki N, Nakamura T, Akutagawa J, Tanada S. Removal of lead ions in drinking water by coffee grounds as vegetable biomass. J Colloid Interface Sci 2005; 281:56-61. [PMID: 15567380 DOI: 10.1016/j.jcis.2004.08.083] [Citation(s) in RCA: 157] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2004] [Accepted: 08/10/2004] [Indexed: 11/23/2022]
Abstract
In an attempt to reuse food waste for useful purposes, we investigated the possibility of using coffee grounds to remove lead ions from drinking water. We studied the lead ion adsorption characteristics of coffee beans and grounds by measuring their fat and protein content, adsorption isotherms for lead ions, and adsorption rates for lead ions. The number of lead ions adsorbed by coffee grounds did not depend on the kind of coffee beans or the temperature at which adsorption tests were performed. The rate of lead ion adsorption by coffee grounds was directly proportional to the amount of coffee grounds added to the solution. When coffee grounds were degreased or boiled, the number of lead ions decreased. When proteins contained in coffee grounds were denatured, the lead ion adsorption was considerably reduced. The lead ion adsorption capacity of coffee grounds decreased with increased concentration of perchloric acid used for treating them and disappeared with 10% perchloric acid. The experiments demonstrated that proteins contained in coffee beans depend upon the adsorption of lead ion. The present study gave an affirmative answer to the possibility of using coffee grounds, an abundant food waste, for removing lead ions from drinking water.
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Affiliation(s)
- Toshimitsu Tokimoto
- School of Pharmaceutical Sciences, Kinki University, Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
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