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Zoidis E, Papadomichelakis G, Pappas AC, Theodorou G, Fegeros K. Effects of Selenium and Cadmium on Breast Muscle Fatty-Acid Composition and Gene Expression of Liver Antioxidant Proteins in Broilers. Antioxidants (Basel) 2019; 8:antiox8050147. [PMID: 31137881 PMCID: PMC6562737 DOI: 10.3390/antiox8050147] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/15/2019] [Accepted: 05/23/2019] [Indexed: 12/20/2022] Open
Abstract
The present work was part of a project intended to evaluate whether organic selenium (Se) has the potential to protect against toxic effects exerted by cadmium (Cd). For this reason, 300 as-hatched, one-day-old broiler chickens were randomly allocated in four dietary treatments with five replicate pens per treatment. Chickens in T1 treatment, were offered a diet supplemented with 0.3 ppm Se (as Se-yeast), without added Cd; in T2 treatment, they were offered a diet with 0.3 ppm Se and 10 ppm Cd; in T3 treatment, they were offered a diet with 0.3 ppm Se and 100 ppm Cd; in T4 treatment, chickens were offered a diet supplemented with 3 ppm Se and 100 ppm Cd. Cadmium was added to the diets in T2, T3, and T4 as CdCl2. On the fourth and sixth weeks, liver and breast samples were obtained from two broilers per replicate pen. Relative gene expression levels of catalase (CAT), superoxide dismutase 1 (SOD1) and 2 (SOD2), methionine sulfoxide reductase A (MSRA) and B3 (MSRB3), iodothyronine deiodinase 1 (DIO1), 2 (DIO2), and 3 (DIO3), glutathione peroxidase 1 (GPX1) and 4 (GPX4), thioredoxin reductase 1 (TXNRD1) and 3 (TXNRD3), and metallothionein 3 (MT3) were analyzed by real-time quantitative PCR in liver, whereas the fatty-acid (FA) profile of breast muscle was determined by gas chromatography. Broilers supplemented with 0.3 ppm Se could tolerate low levels of Cd present in the diets, as there were no significant changes in the breast muscle FA profile, whereas excess Cd led to decreased polyunsaturated fatty acids (PUFAs), and in particular n-6 PUFA. Furthermore, treatments mainly affected the messenger RNA (mRNA) expression of SOD2, TXNRD3, and MT3, while age affected CAT, MSRB3, DIO2, DIO3, GPX4, TXNRD1, and MT3. In conclusion, dietary Se may help against the negative effects of Cd, but cannot be effective when Cd is present at excessive amounts in the diet.
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Affiliation(s)
- Evangelos Zoidis
- Department of Nutritional Physiology and Feeding, Faculty of Animal Science, Agricultural University of Athens, 11855 Athens, Greece.
| | - George Papadomichelakis
- Department of Nutritional Physiology and Feeding, Faculty of Animal Science, Agricultural University of Athens, 11855 Athens, Greece.
| | - Athanasios C Pappas
- Department of Nutritional Physiology and Feeding, Faculty of Animal Science, Agricultural University of Athens, 11855 Athens, Greece.
| | - Georgios Theodorou
- Department of Animal Breeding and Husbandry, Faculty of Animal Science, Agricultural University of Athens, 11855 Athens, Greece.
| | - Kostas Fegeros
- Department of Nutritional Physiology and Feeding, Faculty of Animal Science, Agricultural University of Athens, 11855 Athens, Greece.
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Wang Y, Jiang L, He J, Hu M, Zeng F, Li Y, Tian H, Luo X. The Adverse Effects of Se Toxicity on Inflammatory and Immune Responses in Chicken Spleens. Biol Trace Elem Res 2018; 185:170-176. [PMID: 29302868 DOI: 10.1007/s12011-017-1224-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 12/15/2017] [Indexed: 12/17/2022]
Abstract
Selenium (Se) is an essential trace element, but excessive intake of Se could induce Se poisoning, and result in various health problems. NF-κB regulated many molecules of the immune response and the inflammatory response, and Th1/Th2 balance played a key in the regulation of immune response. The aim of this study is to investigate the role of NF-κB pathway and Th1/Th2 imbalance in the adverse influence of Se poisoning on chicken spleens. In the current study, 90 chickens were randomly divided into two groups (n = 45 per group). The chickens were maintained either on a basal diet (the control group) containing 0.2 mg/kg Se or a high supplemented diet (the Se group) containing 15 mg/kg Se for 45 days. Then, we observed the pathohistology of spleen cells and detected NO content, iNOS activity, and the expression of NF-κB, iNOS, COX-2, PTGE, IL-6, TNF-α, Foxp3, IL-4, and IFN-γ in chicken spleens. In chicken spleens of the Se group, the result showed typical characteristics of inflammation: the content of NO and the activity of iNOS were increased, and the expression of NF-κB, iNOS, COX-2, PTGE, IL-6, TNF-α, and IL-4 was enhanced and that of Foxp3 and IFN-γ was decreased. Our study showed that Se toxicity could promote inflammation via NF-κB pathway, impairing the immune function, and changing Th1/Th2 balance in the chicken spleens.
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Affiliation(s)
- Yachao Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
- Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Li Jiang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Jian He
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Mao Hu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Fankun Zeng
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Yuanfeng Li
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - He Tian
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Xuegang Luo
- Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China.
- School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China.
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Zhou JC, Zheng S, Mo J, Liang X, Xu Y, Zhang H, Gong C, Liu XL, Lei XG. Dietary Selenium Deficiency or Excess Reduces Sperm Quality and Testicular mRNA Abundance of Nuclear Glutathione Peroxidase 4 in Rats. J Nutr 2017; 147:1947-1953. [PMID: 28814533 DOI: 10.3945/jn.117.252544] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 04/26/2017] [Accepted: 07/18/2017] [Indexed: 11/14/2022] Open
Abstract
Background: Glutathione peroxidase (GPX) 4 and selenoprotein P (SELENOP) are abundant, and several variants are expressed in the testis.Objective: We determined the effects of dietary selenium deficiency or excess on sperm quality and expressions of GPX4 and SELENOP variants in rat testis and liver.Methods: After weaning, male Sprague-Dawley rats were fed a Se-deficient basal diet (BD) for 5 wk until they were 9 wk old [mean ± SEM body weight (BW) = 256 ± 5 g]. They were then fed the BD diet alone (deficient) or with 0.25 (adequate), 3 (excess), or 5 (excess) mg Se/kg for 4 wk. Testis, liver, blood, and semen were collected to assay for selenoprotein mRNA and protein abundances, selenium concentration, GPX activity, 8-hydroxy-deoxyguanosine concentration, and sperm quality.Results: Dietary selenium supplementations elevated (P < 0.05) tissue selenium concentrations and GPX activities. Compared with those fed BD + 0.25 mg Se/kg, rats fed BD showed lower (P < 0.05) BW gain (86%) and sperm density (57%) but higher (P < 0.05) plasma 8-hydroxy-deoxyguanosine concentrations (189%), and nonprogressive sperm motility (4.4-fold). Likewise, rats fed BD + 5 mg Se/kg had (P = 0.06) lower BW gain and higher (1.9-fold) sperm deformity rates than those in the selenium-adequate group. Compared with the selenium-adequate group, dietary selenium deficiency (BD) or excess (BD + 3 or 5 mg Se/kg) resulted in 45-77% lower (P < 0.05) nuclear Gpx4 (nGpx4) mRNA abundance in the testis. Rats fed BD had lower (P < 0.05) mRNA levels of 2 Selenop variants in both testis and liver than those in the other groups. Testicular SELENOP was 155-170% higher (P < 0.05) in rats fed BD + 5 mg Se/kg and hepatic c/mGPX4 was 13-15% lower (P < 0.05) in rats fed BD than in the other groups.Conclusions: The mRNA abundance of rat testicular nGPX4 responded to dietary selenium concentrations in similar ways to sperm parameters and may be used as a sensitive marker to assess appropriate Se status for male function.
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Affiliation(s)
- Ji-Chang Zhou
- Molecular Biology Laboratory, Shenzhen Center for Chronic Disease Control, Shenzhen Guangdong, China;
| | - Shijie Zheng
- Molecular Biology Laboratory, Shenzhen Center for Chronic Disease Control, Shenzhen Guangdong, China
| | - Junluan Mo
- Molecular Biology Laboratory, Shenzhen Center for Chronic Disease Control, Shenzhen Guangdong, China
| | - Xiongshun Liang
- Molecular Biology Laboratory, Shenzhen Center for Chronic Disease Control, Shenzhen Guangdong, China
| | - Yuanfei Xu
- Molecular Biology Laboratory, Shenzhen Center for Chronic Disease Control, Shenzhen Guangdong, China
| | - Huimin Zhang
- Physicochemical Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen Guangdong, China; and
| | - Chunmei Gong
- Molecular Biology Laboratory, Shenzhen Center for Chronic Disease Control, Shenzhen Guangdong, China
| | - Xiao-Li Liu
- Molecular Biology Laboratory, Shenzhen Center for Chronic Disease Control, Shenzhen Guangdong, China
| | - Xin Gen Lei
- Department of Animal Science, Cornell University, Ithaca, NY
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Fontanella MC, D'Amato R, Regni L, Proietti P, Beone GM, Businelli D. Selenium speciation profiles in biofortified sangiovese wine. J Trace Elem Med Biol 2017; 43:87-92. [PMID: 28057398 DOI: 10.1016/j.jtemb.2016.11.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 11/09/2016] [Accepted: 11/28/2016] [Indexed: 01/23/2023]
Abstract
Biofortification is an agronomic-based strategy, utilized by farmers, to produce selenium (Se)-enriched food products that may help reduce dietary deficiencies of Se occurring throughout susceptible regions of the world. The foliar exposure route application ensures a high efficiency of Se assimilation by the plant since it does not depend on root-to-shoot translocation. In this study we treated grapevines of Sangiovese variety in the pre-flowering period with sodium selenate (100mg Se L-1). Se content was measured in leaves, fruit at harvest time and in wine respectively in treated and not treated samples with ICP-MS. At harvest, a higher amount of Se in the treated leaves compared to untreated ones was found, 16.0±3.1mgkg-1 dry weight (dw) against 0.17±0.006mgkg-1 dw in the untreated ones. The treated grapes had a content of Se of 0.800±0.08mgkg-1 dw, while that untreated one 0.065±0.025mgkg-1 dw. Immediately after the malolactic fermentation, the wine obtained from treated and untreated vines had a Se content of 0.620±0.09mg Se L-1 and 0.024±0.010mg Se L-1 respectively. In our case the percentage of inorganic Se is 26% of the total Se in the untreated wine, while in Se enriched wine this percentage increase to 47.5% of the total Se. The Se(VI) was the inorganic chemical form more present in enriched wine, probably due to foliar application with selenate. Distributions of Se species suggested being careful to the choice of the enrichment solutions to promote a balanced distribution of different chemical forms, perhaps favouring the accumulation of organic forms.
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Affiliation(s)
- Maria Chiara Fontanella
- Facoltà di Scienze Agrarie, Alimentari e Ambientali -Istituto di Chimica Agraria ed Ambientale- Università Cattolica del Sacro Cuore di Piacenza, Via E. Parmense 84, 29122, Piacenza, Italy.
| | - Roberto D'Amato
- Dipartimento di Scienze Agrarie Alimentari e Ambientali, Università degli Studi di Perugia, Via San Costanzo, 06126, Perugia, Italy
| | - Luca Regni
- Dipartimento di Scienze Agrarie Alimentari e Ambientali, Università degli Studi di Perugia, Via San Costanzo, 06126, Perugia, Italy
| | - Primo Proietti
- Dipartimento di Scienze Agrarie Alimentari e Ambientali, Università degli Studi di Perugia, Via San Costanzo, 06126, Perugia, Italy
| | - Gian Maria Beone
- Facoltà di Scienze Agrarie, Alimentari e Ambientali -Istituto di Chimica Agraria ed Ambientale- Università Cattolica del Sacro Cuore di Piacenza, Via E. Parmense 84, 29122, Piacenza, Italy
| | - Daniela Businelli
- Dipartimento di Scienze Agrarie Alimentari e Ambientali, Università degli Studi di Perugia, Via San Costanzo, 06126, Perugia, Italy
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Ellwanger JH, Franke SIR, Bordin DL, Prá D, Henriques JAP. Biological functions of selenium and its potential influence on Parkinson's disease. AN ACAD BRAS CIENC 2016; 88:1655-1674. [PMID: 27556332 DOI: 10.1590/0001-3765201620150595] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 09/28/2015] [Indexed: 03/01/2023] Open
Abstract
Parkinson's disease is characterized by the death of dopaminergic neurons, mainly in the substantia nigra, and causes serious locomotor dysfunctions. It is likely that the oxidative damage to cellular biomolecules is among the leading causes of neurodegeneration that occurs in the disease. Selenium is an essential mineral for proper functioning of the brain, and mainly due to its antioxidant activity, it is possible to exert a special role in the prevention and in the nutritional management of Parkinson's disease. Currently, few researchers have investigated the effects of selenium on Parkinson´s disease. However, it is known that very high or very low body levels of selenium can (possibly) contribute to the pathogenesis of Parkinson's disease, because this imbalance results in increased levels of oxidative stress. Therefore, the aim of this work is to review and discuss studies that have addressed these topics and to finally associate the information obtained from them so that these data and associations serve as input to new research.
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Affiliation(s)
- Joel H Ellwanger
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul/UFRGS, Campus do Vale, Prédio 43421, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brasil
| | - Silvia I R Franke
- Programa de Pós-Graduação em Promoção da Saúde, Universidade de Santa Cruz do Sul/UNISC, Bloco 42, sala 4206, Av. Independência, 2293, Universitário, 96815-900 Santa Cruz do Sul, RS, Brasil
| | - Diana L Bordin
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul/UFRGS, Campus do Vale, Prédio 43421, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brasil
| | - Daniel Prá
- Programa de Pós-Graduação em Promoção da Saúde, Universidade de Santa Cruz do Sul/UNISC, Bloco 42, sala 4206, Av. Independência, 2293, Universitário, 96815-900 Santa Cruz do Sul, RS, Brasil.,Departamento de Biologia e Farmácia, Universidade de Santa Cruz do Sul/UNISC, Bloco 12, sala 1206, Av. Independência, 2293, Universitário, 96815-900 Santa Cruz do Sul, RS, Brasil
| | - João A P Henriques
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul/UFRGS, Campus do Vale, Prédio 43421, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brasil.,Instituto de Biotecnologia, Universidade de Caxias do Sul/UCS, Rua Francisco Getúlio Vargas, 1130, 95070-560 Caxias do Sul, RS, Brasil
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Chadio SE, Pappas AC, Papanastasatos A, Pantelia D, Dardamani A, Fegeros K, Zervas G. Effects of high selenium and fat supplementation on growth performance and thyroid hormones concentration of broilers. J Trace Elem Med Biol 2015; 29:202-7. [PMID: 25447588 DOI: 10.1016/j.jtemb.2014.09.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 08/05/2014] [Accepted: 09/24/2014] [Indexed: 11/24/2022]
Abstract
A total of 400, as hatched, broilers were used to investigate the effect of increase of selenium and energy intake on thyroid hormone metabolism, growth and liver fatty acid profile. There were 5 replicates of 4 dietary treatments namely, TA (0.289mg Se per kg diet and adequate energy content), TB (0.583mg Se per kg diet and adequate energy content), TC (0.267mg Se per kg diet and 9% increase of energy content) and TD (0.576mg Se per kg diet and 9% increase of energy content). Diets were isonitrogenous. Zinc L-selenomethionine complex was used to increase Se content and corn oil was used to increase the energy content. The experiment lasted 42 days. Broiler growth performance was not significantly affected by dietary treatments. Liver glutathione peroxidase (GPx) activity increased (P<0.05) in broilers fed high Se and energy diets compared to other ones. Whole blood GPx activity was higher in Se supplemented groups however, it was reduced by age. Thyroid hormone concentrations were unaffected by dietary treatments. A significant increase of linoleic and arachidonic acid concentration (P<0.001) was observed in the liver of broilers fed diets with moderately increased energy content and supplemented with Se compared to those fed diets with moderately increased energy content alone. In conclusion, zinc L-selenomethionine complex and moderate increase of energy content did not affect growth rate or thyroid hormone metabolism but led to increased liver fatty acid content and hepatic GPx activity.
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Affiliation(s)
- Stella E Chadio
- Department of Anatomy and Physiology of Domestic Animals, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Athens, Greece.
| | - Athanasios C Pappas
- Department of Nutritional Physiology and Feeding, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Athens, Greece
| | - Anastasios Papanastasatos
- Department of Anatomy and Physiology of Domestic Animals, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Athens, Greece
| | - Dionysia Pantelia
- Department of Anatomy and Physiology of Domestic Animals, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Athens, Greece
| | - Aikaterini Dardamani
- Department of Nutritional Physiology and Feeding, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Athens, Greece
| | - Konstantinos Fegeros
- Department of Nutritional Physiology and Feeding, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Athens, Greece
| | - George Zervas
- Department of Nutritional Physiology and Feeding, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Athens, Greece
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Harisa GI. Oxidative stress and paraoxonase activity in experimental selenosis: effects of betaine administration. Biol Trace Elem Res 2013; 152:258-66. [PMID: 23385851 DOI: 10.1007/s12011-013-9618-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Accepted: 01/23/2013] [Indexed: 01/27/2023]
Abstract
The present study was undertaken on male rats to elucidate the selenosis induced by sodium selenite and the role played by betaine in alleviating selenium toxicity. Rats were treated with sodium selenite (6 mg/kg body weight/day) with or without betaine (240 mg/kg body weight/day). Selenotoxicosis was evident from the elevated plasma levels of total bilirubin, transaminases, and alkaline phosphatase activities. Moreover, the total protein levels decreased, and this decrease associated with a decreased albumin level, whereas the globulin level increased in selenium-intoxicated rats. The development of selenosis corresponded well with the induction of oxidative stress evident from decrease of total thiol level and glutathione content. Furthermore, activities of glutathione reductase, glucose-6-phosphate dehydrogenase, catalase, and paraoxonase-1 were decreased in selenium-treated rats. In contrast, superoxide dismutase and glutathione peroxidase activities were increased by excess selenium administration compared with control animals. As well, malondialdehyde and protein carbonyl were elevated in rats treated with selenium. Supplementation of betaine simultaneously with selenium caused less marked alteration in the investigated parameters. Betaine attenuated the selenotoxicosis by restoring thiol levels that preserve enzymatic antioxidants activity and attenuate the oxidation of lipids and proteins.
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Affiliation(s)
- Gamaleldin I Harisa
- Kayyali Chair for Pharmaceutical Industry, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
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Harisa GI, Abo-Salem OM, El-sayed ESM, Shazly G. Effects of nutritional and excessive levels of selenium on red blood cells of rats fed a high cholesterol diet. Biol Trace Elem Res 2013; 152:41-9. [PMID: 23292318 DOI: 10.1007/s12011-012-9588-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 12/20/2012] [Indexed: 10/27/2022]
Abstract
In this study, we investigated the effects of selenium (Se) on the properties of erythrocytes and atherogenic index in the presence and absence of high cholesterol diet (HCD). The effect of selected two different doses (1 μg and 50 μg Se/kg/body weight) on HCD-induced oxidative stress was investigated. The hemolysis of the erythrocytes of the HCD rats as well as by high levels of selenium or their combination was markedly increased. Likewise, atherogenic index and plasma glutathione peroxidase (GPx) activity were significantly increased in the same groups of rats compared to control ones. In contrast, paraoxonase activity, glutathione levels and protein thiol levels, catalase, GPx, and superoxide dismutase activities were significantly decreased in rats that received the HCD, high selenium dose, or their combination. Malondialdehyde and protein carbonyl levels in the plasma and red blood cells were significantly increased by HCD and high selenium dose administration. Co-administration of selenium at low dose with or without an HCD restored all of the investigated parameters to near-normal values. The results of this study suggest that excess selenium administration with HCD worsens the atherogenic index and enhances formation of oxidized red blood cells. At dosage levels in the nutritional range such as 1 μg Se/kg body weight, selenium ameliorates the atherogenic index and preserves the antioxidant capacity of the erythrocytes.
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Affiliation(s)
- Gamaleldin I Harisa
- Department of Pharmaceutics, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Saudi Arabia.
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The role of organic selenium in cadmium toxicity: effects on broiler performance and health status. Animal 2013; 7:386-93. [DOI: 10.1017/s1751731112001590] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Al-Waeli A, Pappas A, Zoidis E, Georgiou C, Fegeros K, Zervas G. The role of selenium in cadmium toxicity: interactions with essential and toxic elements. Br Poult Sci 2012; 53:817-27. [DOI: 10.1080/00071668.2012.751523] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Thiry C, Ruttens A, De Temmerman L, Schneider YJ, Pussemier L. Current knowledge in species-related bioavailability of selenium in food. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.07.102] [Citation(s) in RCA: 190] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Misra S, Niyogi S. Selenite causes cytotoxicity in rainbow trout (Oncorhynchus mykiss) hepatocytes by inducing oxidative stress. Toxicol In Vitro 2009; 23:1249-58. [DOI: 10.1016/j.tiv.2009.07.031] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 07/14/2009] [Accepted: 07/28/2009] [Indexed: 01/27/2023]
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Dinu C, Vasile G, Cruceru L, Petre J. Flow Injection Analysis System Coupled with ICP-EOS for Determination of Some Metallic Elements in Drinking Water. CHEMISTRY JOURNAL OF MOLDOVA 2009. [DOI: 10.19261/cjm.2009.04(1).11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The European Drinking Water Directive (98/83/EC), transposed in Romanian Legislation as Low 458/2002, amended by Low 311/2004, imposes the limit of concentration for metallic elements in water intended for human consumption. The toxic metals arsenic and selenium are among these elements and the limit value is 10 μg/L. In the paper there are presented the working conditions for determination of As and Se from drinking water using modern techniques based on the fl ow injection-hydride generation with the inductively coupled plasma atomic emission spectrometry (FIAS-ICP-EOS). The analyses were performed on Optima 5300 DV Perkin Elmer equipment with FIAS 400 Flow Injection System, Perkin Elmer type. For the hydride generation two types of solution were used: 10% (v/v) HCl as a carrier solution and 0.2 % NaBH4 in 0.05%NaOH solution as a reducing agent [1]. The treatment step of the samples and standard solutions consisted in reducing with mixed solutions of KI and ascorbic acid in acidic condition (HCl) for As and only with HCl and high temperature for Se [2,3]. The paper contains the characteristic parameters of the methods, such as: low detection limit, quantifi cation limit, repeatability, precision, recovery, which were evaluated using Certifi ed Reference Materials for each element.
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