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Gu X, Chen R, Hu G, Zhuang Y, Luo J, Zhang C, Guo X, Huang A, Cao H. Cell apoptosis of caprine spleen induced by toxicity of cadmium with different levels of molybdenum. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 40:49-56. [PMID: 26068552 DOI: 10.1016/j.etap.2015.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/23/2015] [Accepted: 05/01/2015] [Indexed: 06/04/2023]
Abstract
In order to clarify the effects of the combination of Mo and Cd on goat and relationship between the two elements, combined chronic toxicity of cadmium with different levels of molybdenum in vivo on apoptosis gene and ultrastructure of spleen was evaluated with the methods of RT-qPCR and transmission electron microscopy. A total of thirty-six goats were randomly distributed in equal number into four groups. These groups were randomly assigned with one of three oral treatments of CdCl2 (0.5 mgCd kg(-1)) and [(NH4)6Mo7O24·4H2O] (15 mg Mo kg(-1), group I; 30 mg Mo kg(-1), group II; 45 mg Mo kg(-1), group III), while the control group received deionized water. Spleen tissues were taken from individual goat at different time intervals to measure the levels of apoptosis genes including Bcl-2, Bax, Cyt c, Caspase-3, Smac and ceruloplasmin (Cp). The results revealed that a significant suppression in Bcl-2 expression and increase in Cyt c, Caspase-3 and Cp expression in splenic cells. The Bax expression in group I and II was up-regulated, however, it displayed reduction in group III, whereas no statistical significance was observed on Smac expression. In addition, histopathologic injury revealed remarkable morphplogical changes on the splenocytes in the means of apoptosis including fragmentized nucleus, apoptotic body and vesiculation of cytoplasma and mitochondria. Taken together, combined chronic toxicity of cadmium with different levels of molybdenum induce goat spleen cell apoptosis associated with mitochondrial intrinsic pathway, and the two elements showed possible antergic relationship.
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Affiliation(s)
- Xiaolong Gu
- Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Rongrong Chen
- Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Guoliang Hu
- Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Yu Zhuang
- Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Junrong Luo
- Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Caiying Zhang
- Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Xiaoquan Guo
- Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Aiming Huang
- Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Huabin Cao
- Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China.
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Skröder H, Hawkesworth S, Kippler M, El Arifeen S, Wagatsuma Y, Moore SE, Vahter M. Kidney function and blood pressure in preschool-aged children exposed to cadmium and arsenic--potential alleviation by selenium. ENVIRONMENTAL RESEARCH 2015; 140:205-13. [PMID: 25863594 DOI: 10.1016/j.envres.2015.03.038] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 03/27/2015] [Accepted: 03/30/2015] [Indexed: 05/22/2023]
Abstract
BACKGROUND Early-life exposure to toxic compounds may cause long-lasting health effects, but few studies have investigated effects of childhood exposure to nephrotoxic metals on kidney and cardiovascular function. OBJECTIVES To assess effects of exposure to arsenic and cadmium on kidney function and blood pressure in pre-school-aged children, and potential protection by selenium. METHODS This cross-sectional study was part of the 4.5 years of age (range: 4.4-5.4 years) follow-up of the children from a supplementation trial in pregnancy (MINIMat) in rural Bangladesh, and nested studies on early-life metal exposures. Exposure to arsenic, cadmium and selenium from food and drinking water was assessed by concentrations in children's urine, measured by ICP-MS. Kidney function was assessed by the estimated glomerular filtration rate (eGFR, n=1106), calculated from serum cystatin C, and by kidney volume, measured by ultrasound (n=375). Systolic and diastolic blood pressure was measured (n=1356) after five minutes rest. RESULTS Multivariable-adjusted regression analyzes showed that exposure to cadmium, but not arsenic, was inversely associated with eGFR, particularly in girls. A 0.5 µg/L increase in urinary cadmium among the girls (above spline knot at 0.12) was associated with a decrease in eGFR of 2.6 ml/min/1.73 m(2), corresponding to 0.2SD (p=0.022). A slightly weaker inverse association with cadmium was also indicated for kidney volume, but no significant associations were found with blood pressure. Stratifying on children's urinary selenium (below or above median of 12.6 µg/L) showed a three times stronger inverse association of U-Cd with eGFR (all children) in the lower selenium stratum (B=-2.8; 95% CI: -5.5, -0.20; p=0.035), compared to those with higher selenium (B=-0.79; 95% CI: -3.0, 1.4; p=0.49). CONCLUSIONS Childhood cadmium exposure seems to adversely affect kidney function, but not blood pressure, in this population of young children in rural Bangladesh. Better selenium status appears to be protective. However, it is important to follow up these children to assess potential long-term consequences of these findings.
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Affiliation(s)
- Helena Skröder
- Unit of Metals and Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Sophie Hawkesworth
- Medical Research Council (MRC), International Nutrition Group, London School of Hygiene and Tropical Medicine, London, UK
| | - Maria Kippler
- Unit of Metals and Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Shams El Arifeen
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Yukiko Wagatsuma
- Department of Clinical Trial and Clinical Epidemiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | | | - Marie Vahter
- Unit of Metals and Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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103
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Braga MM, Dick T, de Oliveira DL, Scopel-Guerra A, Mussulini BHM, Souza DO, da Rocha JBT. Evaluation of zinc effect on cadmium action in lipid peroxidation and metallothionein levels in the brain. Toxicol Rep 2015; 2:858-863. [PMID: 28962421 PMCID: PMC5598407 DOI: 10.1016/j.toxrep.2015.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/29/2015] [Accepted: 05/31/2015] [Indexed: 12/26/2022] Open
Abstract
Cadmium (Cd) is a known hepato- and nephrotoxic pollutant and zinc (Zn) metalloproteins are important targets of Cd. Hence, the administration of Zn may mitigate Cd toxic effects. However, the interaction of Cd and Zn has been little investigated in the brain. Previously, we reported a protective effect of Zn on mortality caused by Cd in rats. Here, we tested whether the protective effect of Zn could be related to changes in brain Zn-proteins, metallothionein (MT) and δ-aminolevulinate dehydratse (δ-ALA-D). Male adult rats were daily administered for 10 days with Zn (2 mg kg-1), Cd (0.25 and 1 mg kg-1) and 0.25 mg kg-1 of Cd plus Zn and 1 mg kg-1 of Cd plus Zn. The body weight loss, food intake deprivation, and mortality occurred in 1 mg kg-1 of Cd, but Zn co-administration did mitigate these effects. The brain Zn content was not modified by treatment with Cd, whereas cerebral Cd levels increased in animals exposed to Cd. The administration of 0.25 mg kg-1 of Cd (with or without Zn) induced lipid peroxidation and decreased MT concentration, but 2 mg kg-1 of Zn and 1 mg kg-1 of Cd did not change these parameters. Brain δ-ALA-D was not modified by Cd and/or Zn treatments. Since the co-administration of Zn did not attenuate the changes induced by Cd in the brain, our results suggest that the protective effect of Zn on impairments caused by Cd in animal status is weakly related to a cerebral interaction of these metals.
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Affiliation(s)
- Marcos M Braga
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, CEP 90035-003 Porto Alegre, RS, Brazil.,Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Tuiskon Dick
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Diogo L de Oliveira
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Adriele Scopel-Guerra
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Ben Hur M Mussulini
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Diogo O Souza
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, CEP 90035-003 Porto Alegre, RS, Brazil
| | - João Batista T da Rocha
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
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104
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Qi Y, Li SY, Piao FY, Wang ZM, Chen RL, Liu S, Shen JS. 2,5-Hexanedione induces apoptosis via a mitochondria-mediated pathway in PC12 cells. Mol Cell Toxicol 2015. [DOI: 10.1007/s13273-015-0010-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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105
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Frazzoli C, Bocca B, Mantovani A. The One Health Perspective in Trace Elements Biomonitoring. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2015; 18:344-370. [PMID: 26691900 DOI: 10.1080/10937404.2015.1085473] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Health risks in both animals and humans are associated with chronic exposures to levels of trace elements (TE) eliciting toxic and/or antinutritional effects, including excess exposures to some essential elements. Interferences with essential TE may also lead to secondary nutritional deficiencies and/or imbalances. Although research is still required, biomarkers of exposure, including bioavailability, for TE are established tools for human biomonitoring that can also be applied to animal surveillance. Biomarkers of effect as well as, where available, of susceptibility and bioavailability are necessary to understand whether an ongoing exposure may pose a current or future health concern. In the field of animal health the use of biomarkers is less developed and less widespread than in human health; however, under a One Health perspective, animal biomonitoring can provide important information on the interfaces among humans, animals, and the environment, supporting the prevention and management of health risks. Therefore, a transfer of knowledge from human biomonitoring to farm or free-ranging animals is critical in a risk assessment framework from farm to humans. Advantages and critical aspects in designing and conducting integrative biomonitoring activities in humans and animals were critically reviewed focusing on biomarkers of exposure, effect, susceptibility, and bioavailability for toxic and essential TE. Highlighted aspects include TE metabolism, bioaccessibility, and interactions. Farm or free-ranging animals may provide noninvasive matrices suitable for evaluating animal welfare, environmental stressors, food safety, and potential risks for human health, as proposed by the interdisciplinary concept of One Health.
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Affiliation(s)
- Chiara Frazzoli
- a External Relations Office , Istituto Superiore di Sanità , Rome , Italy
| | - Beatrice Bocca
- b Bioelements and Health Unit, Department of Environment and Primary Prevention , Istituto Superiore di Sanità , Rome , Italy
| | - Alberto Mantovani
- c Food and Veterinary Toxicology Unit, Department of Veterinary Public Health and Food Safety , Istituto Superiore di Sanità , Rome , Italy
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106
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Zhao M, Wang P, Zhu Y, Liu X, Hu X, Chen F. The chemoprotection of a blueberry anthocyanin extract against the acrylamide-induced oxidative stress in mitochondria: unequivocal evidence in mice liver. Food Funct 2015; 6:3006-12. [DOI: 10.1039/c5fo00408j] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The mitochondrial mechanism of Acrylamide-induced oxidative stress.
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Affiliation(s)
- Mengyao Zhao
- College of Food Science and Nutritional Engineering
- National Engineering Research Centre for Fruits and Vegetables Processing
- Key Laboratory of Fruits and Vegetables Processing
- Ministry of Agriculture
- Engineering Research Centre for Fruits and Vegetables Processing
| | - Pengpu Wang
- College of Food Science and Nutritional Engineering
- National Engineering Research Centre for Fruits and Vegetables Processing
- Key Laboratory of Fruits and Vegetables Processing
- Ministry of Agriculture
- Engineering Research Centre for Fruits and Vegetables Processing
| | - Yuchen Zhu
- College of Food Science and Nutritional Engineering
- National Engineering Research Centre for Fruits and Vegetables Processing
- Key Laboratory of Fruits and Vegetables Processing
- Ministry of Agriculture
- Engineering Research Centre for Fruits and Vegetables Processing
| | - Xin Liu
- College of Food Science and Nutritional Engineering
- National Engineering Research Centre for Fruits and Vegetables Processing
- Key Laboratory of Fruits and Vegetables Processing
- Ministry of Agriculture
- Engineering Research Centre for Fruits and Vegetables Processing
| | - Xiaosong Hu
- College of Food Science and Nutritional Engineering
- National Engineering Research Centre for Fruits and Vegetables Processing
- Key Laboratory of Fruits and Vegetables Processing
- Ministry of Agriculture
- Engineering Research Centre for Fruits and Vegetables Processing
| | - Fang Chen
- College of Food Science and Nutritional Engineering
- National Engineering Research Centre for Fruits and Vegetables Processing
- Key Laboratory of Fruits and Vegetables Processing
- Ministry of Agriculture
- Engineering Research Centre for Fruits and Vegetables Processing
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107
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CHEN R, LIU S, PIAO F, WANG Z, QI Y, LI S, ZHANG D, SHEN J. 2,5-hexanedione induced apoptosis in mesenchymal stem cells from rat bone marrow via mitochondria-dependent caspase-3 pathway. INDUSTRIAL HEALTH 2015; 53:222-35. [PMID: 25739802 PMCID: PMC4466875 DOI: 10.2486/indhealth.2014-0182] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
2,5-hexanedione (HD) induces apoptosis of nerve cells. However,the mechanism of HD-induced apoptosis remains unknown. Mesenchymal stem cells (MSCs) are multipotential stem cells with the ability to differentiate into various cell types. This study is designed to investigate the apoptosis induced by HD in rat bone marrow MSCs (BMSCs) and the related underlying mechanisms. The fifth generation of MSCs was treated with 0, 10, 20 and 40 mM HD respectively. The viability of BMSCs was observed by MTT. Apoptosis were estimated by Hoechst 33342 staining and TUNEL assay. The disruption of mitochondrial transmembrane potential (MMP) was examined by JC-1 staining. Moreover, the expression of Bax and Bcl-2, cytochrome c release, and caspase-3 activity were determined by real-time RT-PCR, Western blot and Spectrophotometry. Our results showed that HD induced apoptosis in MSCs in a dose dependent manner. Moreover, HD downregulated the Bcl-2 expression,upregulated the Bax expression and the Bax/Bcl-2 ratio, promoted the disruption of MMP, induced the release of cytochrome c from mitochondria to cytosol, and increased the activity of caspase-3 in MSCs. These results indicate that HD induces apoptosis in MSCs and the activated mitochondria-dependent caspase-3 pathway may be involved in the HD-induced apoptosis.
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Affiliation(s)
- Ruolin CHEN
- Department of Occupational and Environmental Health, Dalian
Medical University, China
| | - Shuang LIU
- Department of Occupational and Environmental Health, Dalian
Medical University, China
| | - Fengyuan PIAO
- Department of Occupational and Environmental Health, Dalian
Medical University, China
- To whom correspondence should be addressed. E-mail: (F.
Piao); (J.
Shen)
| | - Zhemin WANG
- Department of Occupational and Environmental Health, Dalian
Medical University, China
| | - Yuan QI
- Department of Occupational and Environmental Health, Dalian
Medical University, China
| | - Shuangyue LI
- Department of Occupational and Environmental Health, Dalian
Medical University, China
| | - Dongmei ZHANG
- Department of Physiology, Dalian Medical University,
China
| | - Jingshun SHEN
- Department of Neurology, First Affiliated Hospital of Dalian
Medical University, China
- To whom correspondence should be addressed. E-mail: (F.
Piao); (J.
Shen)
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108
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Khojastehfar A, Aghaei M, Gharagozloo M, Panjehpour M. Cadmium induces reactive oxygen species-dependent apoptosis in MCF-7 human breast cancer cell line. Toxicol Mech Methods 2014; 25:48-55. [DOI: 10.3109/15376516.2014.985353] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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109
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Rosabal M, Ponton DE, Campbell PGC, Hare L. Uptake and subcellular distributions of cadmium and selenium in transplanted aquatic insect larvae. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:12654-12661. [PMID: 25268462 DOI: 10.1021/es503133g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We transplanted larvae of the phantom midge Chaoborus punctipennis from a lake having lower concentrations of Cd and Se (Lake Dasserat) to a more contaminated lake (Lake Dufault) located near a metal smelter in Rouyn-Noranda, Quebec. Transplanted individuals were held in mesh mesocosms for up to 16 days where they were fed with indigenous contaminated zooplankton. Larval Cd and Se burdens increased over time, and came to equal those measured in indigenous C. punctipennis from contaminated Lake Dufault. Larval Se burdens increased steadily, whereas those of Cd showed an initial lag phase that we explain by a change in the efficiency with which this insect assimilated Cd from its prey. We measured Cd and Se in subcellular fractions and found that larvae sequestered the majority (60%) of the incoming Cd in a detoxified fraction containing metal-binding proteins, whereas a minority of this nonessential metal was in sensitive fractions (20%). In contrast, a much higher proportion of the essential element Se (40%) was apportioned to metabolically active sensitive fractions. Larvae took up equimolar quantities of these elements over the course of the experiment. Likewise, Cd and Se concentrations in wild larvae were equimolar, which suggests that they are exposed to equimolar bioavailable concentrations of these elements in our study lakes.
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Affiliation(s)
- Maikel Rosabal
- Institut national de la recherche scientifique, Centre Eau Terre Environnement (INRS-ETE), 490 de la Couronne, Québec, Québec, Canada , G1K 9A9
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110
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Daundkar PS, Rampal S. Evaluation of ameliorative potential of selenium on carbendazim induced oxidative stress in male goats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 38:711-719. [PMID: 25299847 DOI: 10.1016/j.etap.2014.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 08/26/2014] [Accepted: 09/11/2014] [Indexed: 06/04/2023]
Abstract
In the present investigation, ameliorative effect of selenium on carbendazim induced oral sub chronic toxicity in bucks was assessed by studying various indices of antioxidant defense system. Bucks were randomly divided into four groups of four animals each. Group I served as control, Group II was orally drenched carbendazim at the dose rate of 50mg/kg body weight for 90 consecutive days. Group III was orally administered selenium in the form of sodium selenite at the dose rate of 0.05mg/kg body weight for 90 consecutive days. Group IV was orally administered carbendazim along with selenium at the same dosages as Group II and III. Prolonged administration of carbendazim produced oxidative stress in goat bucks as evidenced by increase in lipid peroxidation and decline in total antioxidant capacity. The increase in the activity of antioxidant enzymes was not sufficient to prevent pesticide induced oxidative stress. Selenium supplementation provides some amelioration against this effect. Further study is needed to prove ameliorative potential of this antioxidant against carbendazim induced toxicity in goat bucks.
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Affiliation(s)
- Prashant S Daundkar
- Department of Pharmacology and Toxicology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India.
| | - S Rampal
- Department of Pharmacology and Toxicology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India
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111
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Sodium fluoride induced antioxidant defense impairment and impaired renal biomarkers and the ameliorative role of selenium and curcumin in male mice. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2014. [DOI: 10.1016/s2222-1808(14)60771-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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112
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Wei T, Tian W, Xie G. Non-esterified fatty acids induce apoptosis via a ROS-dependent mechanism involving the mitochondrial pathway in bovine abomasal smooth muscle cells. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201400137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Teng Wei
- College of Veterinary Medicine; Jilin University; Changchun Jilin China
| | - Wulin Tian
- College of Veterinary Medicine; Jilin University; Changchun Jilin China
| | - Guanghong Xie
- College of Veterinary Medicine; Jilin University; Changchun Jilin China
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113
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Deep-sea water containing selenium provides intestinal protection against duodenal ulcers through the upregulation of Bcl-2 and thioredoxin reductase 1. PLoS One 2014; 9:e96006. [PMID: 24984066 PMCID: PMC4077573 DOI: 10.1371/journal.pone.0096006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 04/02/2014] [Indexed: 02/06/2023] Open
Abstract
Deep-sea water (DSW), which is rich in micronutrients and minerals and with antioxidant and anti-inflammatory qualities, may be developed as marine drugs to provide intestinal protection against duodenal ulcers. We determined several characteristics in the modified DSW. We explored duodenal pressure, oxygenation, microvascular blood flow, and changes in pH and oxidative redox potential (ORP) values within the stomach and duodenum in response to tap water (TW, hardness: 2.48 ppm), DSW600 (hardness: 600 ppm), and DSW1200 (hardness: 1200 ppm) in Wistar rats and analyzed oxidative stress and apoptosis gene expressions by cDNA and RNA microarrays in the duodenal epithelium. We compared the effects of drinking DSW, MgCl2, and selenium water on duodenal ulcers using pathologic scoring, immunohistochemical analysis, and Western blotting. Our results showed DSW has a higher pH value, lower ORP value, higher scavenging H2O2 and HOCl activity, higher Mg2+ concentrations, and micronutrients selenium compared with TW samples. Water infusion significantly increased intestinal pressure, O2 levels, and microvascular blood flow in DSW and TW groups. Microarray showed DSW600, DSW1200, selenium water upregulated antioxidant and anti-apoptotic genes and downregulated pro-apoptotic gene expression compared with the TW group. Drinking DSW600, DSW1200, and selenium water but not Mg2+ water significantly enhanced Bcl-2 and thioredoxin reductase 1 expression. Bax/Bcl-2/caspase 3/poly-(ADP-ribose)-polymerase signaling was activated during the pathogenesis of duodenal ulceration. DSW drinking reduced ulcer area as well as apoptotic signaling in acetic acid-induced duodenal ulcers. DSW, which contains selenium, provides intestinal protection against duodenal ulcers through the upregulation of Bcl-2 and thioredoxin reductase 1.
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114
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Liu LL, Zhang JL, Zhang ZW, Yao HD, Sun G, Xu SW. Protective roles of selenium on nitric oxide-mediated apoptosis of immune organs induced by cadmium in chickens. Biol Trace Elem Res 2014; 159:199-209. [PMID: 24839000 DOI: 10.1007/s12011-014-0007-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 05/05/2014] [Indexed: 01/02/2023]
Abstract
Little is known about the influence of subchronic cadmium exposure on apoptosis in the immune organs of birds and the protective effects on apoptosis by selenium against cadmium. The aim of this study was to investigate the effect of subchronic cadmium exposure on nitric oxide and apoptosis in the immune organs of chicken and the protective roles of selenium against cadmium-induced apoptosis. Two hundred ten 30-day-old chickens were randomly assigned to three groups and were fed a basal diet, cadmium+selenium (as 150 mg of CdCl2 per kg of diet+10 mg of Na2SeO3 per kg of diet ) or cadmium (as 150 mg of CdCl2 per kg of diet) in basic diets for 15, 30, 45, and 60 days. Then, the production of nitric oxide, messenger RNA (mRNA level), and the activity of inducible nitric oxide synthase, ultrastructural changes, TUNEL assay, and flow cytometric analysis of apoptosis and Bcl-2 and p53 mRNA levels in the immune organs were examined. The results showed that cadmium exposure caused ultrastructural damage and increased production of nitric oxide, mRNA level, and activity of inducible nitric oxide synthase, the degree, and the number of apoptotic cells in a time-dependent manner. Cadmium exposure decreased Bcl-2 mRNA level and increased p53 mRNA level in a time-dependent manner. Selenium supplementation during dietary cadmium reduced the production of nitric oxide, the mRNA level, and activity of inducible nitric oxide synthase, ultrastructural damage, and apoptosis in the immune organs of chicken. It indicated that cadmium induced nitric oxide-mediated apoptosis of immune organs, and selenium played protective effects against cadmium-induced apoptosis in the immune organs of chickens.
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Affiliation(s)
- Li-li Liu
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, People's Republic of China
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115
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Liu LL, Li CM, Zhang ZW, Zhang JL, Yao HD, Xu SW. Protective effects of selenium on cadmium-induced brain damage in chickens. Biol Trace Elem Res 2014; 158:176-85. [PMID: 24573406 DOI: 10.1007/s12011-014-9919-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 02/10/2014] [Indexed: 12/20/2022]
Abstract
Selenium (Se) is an important dietary micronutrient with antioxidative roles. Cadmium (Cd), a ubiquitous environmental pollutant, is known to cause brain lesion in rats and humans. However, little is reported about the deleterious effects of subchronic Cd exposure on the brain of poultry and the protective roles on the brain by Se against Cd. The aim of this study was to investigate the protective effects of Se on Cd-induced brain damage in chickens. One hundred twenty 100-day-old chickens were randomly assigned to four groups and were fed a basal diet, or Se (as 10 mg Na2SeO3/kg dry weight of feed), Cd (as 150 mg CdCl2/kg dry weight of feed), or Cd + Se in their basic diets for 60 days. Then, concentrations of Cd and Se, production of nitric oxide (NO), messenger RNA (mRNA) level and activity of inducible NO synthase (iNOS), level of oxidative stress, and histological and ultrastructural changes of the cerebrum and cerebellum were examined. The results showed that Cd exposure significantly increased Cd accumulation, NO production, iNOS activities, iNOS mRNA level, and MDA content in the cerebrum and cerebellum. Cd treatment obviously decreased Se content and antioxidase activities and caused histopathological changes in the cerebrum and cerebellum. Se supplementation during dietary Cd obviously reduced Cd accumulation, NO production, mRNA level and activity of iNOS, oxidative stress, and histopathological damage in the cerebrum and cerebellum of chickens. It indicated that Se ameliorates Cd-induced brain damage in chickens by regulating iNOS-NO system changes, and oxidative stress induced by Cd and Se can serve as a potential therapeutic for Cd-induced brain lesion of chickens.
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Affiliation(s)
- Li-Li Liu
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Number 24, Heping Road, Xiangfang District, Harbin, 150040, People's Republic of China
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Protective effects of meat from lambs on selenium nanoparticle supplemented diet in a mouse model of polycyclic aromatic hydrocarbon-induced immunotoxicity. Food Chem Toxicol 2013; 64:298-306. [PMID: 24315870 DOI: 10.1016/j.fct.2013.12.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 11/12/2013] [Accepted: 12/02/2013] [Indexed: 02/04/2023]
Abstract
Increased environmental oxidative stress caused primarily by chemicals like polycyclic aromatic hydrocarbons, plays significant role in human diseases. A representative compound, 7,12-dimethylbenz(a)anthracene (DMBA), was used for modeling oxidative damages including the significant decrease of the antioxidant capacity of the blood. Selenium has antioxidant effects but with a narrow therapeutic window. In our current studies to avoid accidental overdose and toxicity selenium was given to meat-producing animals. The standard rodent diet of mice was replaced by meat from lambs either on standard or selenium-enriched diet. Selenium concentration of lamb meat was enhanced three times by nano-selenium administration and an increase in the antioxidant capacity of the blood of mice was measured after the indirect selenium supplementation. Protective effects were also observed against DMBA-induced immunotoxicity. Twice the amount of white blood cells and among them three times more phagocytes survived. Similarly, in their renewal system in bone marrow twice the amount of cells survived and regenerative capacity of granulopoiesis was four times higher than in control DMBA-damaged mice. Our findings suggest functional dietary benefits of lamb meat enriched with selenium by feeding lambs with nanoparticle selenium supplements.
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Nogales F, Ojeda ML, Fenutría M, Murillo ML, Carreras O. Role of selenium and glutathione peroxidase on development, growth, and oxidative balance in rat offspring. Reproduction 2013; 146:659-67. [DOI: 10.1530/rep-13-0267] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Selenium (Se), an essential trace metal, is important in both growth and reproduction and is the constituent of different selenoproteins. The glutathione peroxidase (GPx) family is the most studied as it prevents oxidative stress. Liver oxidation is considered as another mechanism involved in low birth weight. Therefore, in order to ascertain whether GPx is related to the effects of Se on growth during gestation and lactation, three groups of rat pups were used: control, Se deficient (SD), and Se supplemented (SS). Morphological parameters and reproductive indices were evaluated. Hepatic Se levels were measured by graphite furnace atomic absorption while spectrophotometry was used for activity of antioxidant enzymes and oxidative stress markers in liver and western blotting for expression of hepatic GPx1 and GPx4. The SD diet increased mortality at birth; decreased viability and survival indices; and stunted growth, length, and liver development in offspring, thus decreasing hepatic Se levels, GPx, glutathione reductase, and catalase activities, while increasing superoxide dismutase activity and protein oxidation. The SS diet counteracted all the above results. GPx1 expression was heavily regulated by Se dietary intake; however, although Se dietary deficiency reduced GPx4 expression, this decrease was not as pronounced. Therefore, it can be concluded that Se dietary intake is intimately related to growth, length, and directly regulating GPx activity primarily via GPx1 and secondly to GPx4, thus affecting liver oxidation and development. These results suggest that if risk of uterine growth retardation is suspected, or if a neonate with low birth weight presents with signs of liver oxidation, it may be beneficial to know about Se status.
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