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Urbankova L, Skalickova S, Pribilova M, Ridoskova A, Pelcova P, Skladanka J, Horky P. Effects of Sub-Lethal Doses of Selenium Nanoparticles on the Health Status of Rats. TOXICS 2021; 9:toxics9020028. [PMID: 33546233 PMCID: PMC7913318 DOI: 10.3390/toxics9020028] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 11/30/2022]
Abstract
Selenium nanoparticles (SeNPs) are fast becoming a key instrument in several applications such as medicine or nutrition. Questions have been raised about the safety of their use. Male rats were fed for 28 days on a monodiet containing 0.5, 1.5, 3.0 and 5.0 mg Se/kg. Se content in blood and liver, liver panel tests, blood glucose, total antioxidant capacity (TAC), the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPx) were analysed. Liver and duodenum were subjected to histopathology examination. The weight gain of rats showed no differences between tested groups. Se content in blood was higher in all treated groups compared to the control group. The liver concentration of Se in the treated groups varied in the range from 222 to 238 ng/g. No differences were observed in the activity of AST (aspartate aminotransferase), ALP (alkaline phosphatase) and TAS (total antioxidant status). A significant decrease in ALT activity compared to the control group was observed in the treated groups. GPx activity varied from 80 to 88 U/mL through tested groups. SOD activity in liver was decreased in the SeNP-treated group with 5 mg Se/kg (929 ± 103 U/mL). Histopathological examination showed damage to the liver parenchyma and intestinal epithelium in a dose-dependent manner. This study suggests that short-term SeNP supplementation can be safe and beneficial in Se deficiency or specific treatment.
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Affiliation(s)
- Lenka Urbankova
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
| | - Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
- Correspondence:
| | - Magdalena Pribilova
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
| | - Andrea Ridoskova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (A.R.); (P.P.)
- CEITEC-Central European Institute of Technology, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Pavlina Pelcova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (A.R.); (P.P.)
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
| | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
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Jablonska E, Reszka E, Gromadzinska J, Wieczorek E, Krol MB, Raimondi S, Socha K, Borawska MH, Wasowicz W. The Effect of Selenium Supplementation on Glucose Homeostasis and the Expression of Genes Related to Glucose Metabolism. Nutrients 2016; 8:nu8120772. [PMID: 27983572 PMCID: PMC5188427 DOI: 10.3390/nu8120772] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/15/2016] [Accepted: 11/24/2016] [Indexed: 12/17/2022] Open
Abstract
The aim of the study was to evaluate the effect of selenium supplementation on the expression of genes associated with glucose metabolism in humans, in order to explain the unclear relationship between selenium and the risk of diabetes. For gene expression analysis we used archival samples of cDNA from 76 non-diabetic subjects supplemented with selenium in the previous study. The supplementation period was six weeks and the daily dose of selenium was 200 µg (as selenium yeast). Blood for mRNA isolation was collected at four time points: before supplementation, after two and four weeks of supplementation, and after four weeks of washout. The analysis included 15 genes encoding selected proteins involved in insulin signaling and glucose metabolism. In addition, HbA1c and fasting plasma glucose were measured at three and four time points, respectively. Selenium supplementation was associated with a significantly decreased level of HbA1c but not fasting plasma glucose (FPG) and significant down-regulation of seven genes: INSR, ADIPOR1, LDHA, PDHA, PDHB, MYC, and HIF1AN. These results suggest that selenium may affect glycemic control at different levels of regulation, linked to insulin signaling, glycolysis, and pyruvate metabolism. Further research is needed to investigate mechanisms of such transcriptional regulation and its potential implication in direct metabolic effects.
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Affiliation(s)
- Ewa Jablonska
- Nofer Institute of Occupational Medicine, Department of Toxicology and Carcinogenesis, Sw. Teresy 8 Street, 91-348 Lodz, Poland.
| | - Edyta Reszka
- Nofer Institute of Occupational Medicine, Department of Toxicology and Carcinogenesis, Sw. Teresy 8 Street, 91-348 Lodz, Poland.
| | - Jolanta Gromadzinska
- Nofer Institute of Occupational Medicine, Department of Biological and Environmental Monitoring, Sw. Teresy 8 Street, 91-348 Lodz, Poland.
| | - Edyta Wieczorek
- Nofer Institute of Occupational Medicine, Department of Toxicology and Carcinogenesis, Sw. Teresy 8 Street, 91-348 Lodz, Poland.
| | - Magdalena B Krol
- Nofer Institute of Occupational Medicine, Department of Biological and Environmental Monitoring, Sw. Teresy 8 Street, 91-348 Lodz, Poland.
| | - Sara Raimondi
- European Institute of Oncology, Division of Epidemiology and Biostatistics, via Ripamonti 435, Milan 20139, Italy.
| | - Katarzyna Socha
- The Medical University of Bialystok, Department of Bromatoloy, A. Mickiewicza 2D Street, 15-222 Bialystok, Poland.
| | - Maria H Borawska
- The Medical University of Bialystok, Department of Bromatoloy, A. Mickiewicza 2D Street, 15-222 Bialystok, Poland.
| | - Wojciech Wasowicz
- Nofer Institute of Occupational Medicine, Department of Biological and Environmental Monitoring, Sw. Teresy 8 Street, 91-348 Lodz, Poland.
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Selenium-enriched Spirulina protects INS-1E pancreatic beta cells from human islet amyloid polypeptide-induced apoptosis through suppression of ROS-mediated mitochondrial dysfunction and PI3/AKT pathway. Eur J Nutr 2014; 54:509-22. [PMID: 25112514 DOI: 10.1007/s00394-014-0732-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 06/27/2014] [Indexed: 02/07/2023]
Abstract
PURPOSE Human islet amyloid polypeptide (hIAPP) aggregation is linked to loss of pancreatic beta cells in type 2 diabetes, in part due to oxidative stress. Currently, little is known about the effects of selenium-enriched Spirulina on beta cells with the presence of hIAPP. In this study, INS-1E rat insulinoma cells were used as a model to evaluate in vitro protective effects of Se-enriched Spirulina extract (Se-SE) against hIAPP-induced cell death, as well as the underlying mechanisms. METHODS Flow cytometric analysis was used to evaluate cell apoptosis, mitochondrial membrane potential (ΔΨm) and ROS generation. Caspase activity was measured using a fluorometric method. Western blotting was applied to detect protein expression. RESULTS Our results showed that exposure of INS-1E cells to hIAPP resulted in cell viability loss, LDH release and appearance of sub-G peak. However, cytotoxicity of hIAPP was significantly attenuated by co-treatment with Se-SE. Se-SE also inhibited hIAPP-induced activation of caspase-3, -8 and -9. Additionally, hIAPP-induced accumulation of ROS and superoxide was suppressed by co-treatment with Se-SE. Moreover, Se-SE was able to prevent hIAPP-induced depletion of ΔΨm and intracellular ATP, reduction in mitochondrial mass, changes in the expression of Bcl-2 family members, release of mitochondrial apoptogenic factors. Furthermore, hIAPP-mediated AKT inhibition was restored by co-treatment with Se-SE. CONCLUSION Our results showed that Se-SE protects INS-1E cells from hIAPP-induced cell death through preventing ROS overproduction, mitochondrial dysfunction and modulating PI3K/AKT pathway.
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Sefi M, Amara IB, Troudi A, Soudani N, Hakim A, Zeghal KM, Boudawara T, Zeghal N. Effect of selenium on methimazole-induced liver damage and oxidative stress in adult rats and their offspring. Toxicol Ind Health 2012; 30:653-69. [DOI: 10.1177/0748233712462445] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study aimed to investigate the protective effect of selenium (Se) on methimazole (MMI; an antithyroid drug)-induced hepatotoxicity in adult rats and their progeny. Female Wistar rats were randomly divided into four groups of six rats in each group: group I served as controls that received standard diet; group II received MMI in drinking water as 250 mg L−1 and standard diet; group III received both MMI (250 mg L−1, orally) and Se (0.5 mg kg−1 of diet); group IV received Se (0.5 mg kg−1 of diet) as sodium selenite. Treatments were started from the 14th day of pregnancy until day 14 after delivery. Exposure of rats to MMI promoted oxidative stress with an increase in liver malondialdehyde levels, advanced oxidation protein products and protein carbonyl contents and a decrease in the levels of glutathione, nonprotein thiols and vitamin C. A decrease in the activities of liver glutathione peroxidase, superoxide dismutase, catalase and lactate dehydrogenase and in the levels of plasma total protein and albumin was also observed. Plasma transaminase activities and total, direct and indirect bilirubin levels increased. Coadministration of Se through diet improved all biochemical parameters. The histopathological changes confirmed the biochemical results. Therefore, our investigation revealed that Se, a trace element with antioxidant properties, was effective in preventing MMI-induced liver damage.
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Affiliation(s)
- Mediha Sefi
- Animal Physiology Laboratory, Sfax Faculty of Science, University of Sfax, Tunisia
| | - Ibtissem Ben Amara
- Animal Physiology Laboratory, Sfax Faculty of Science, University of Sfax, Tunisia
| | - Afef Troudi
- Animal Physiology Laboratory, Sfax Faculty of Science, University of Sfax, Tunisia
| | - Nejla Soudani
- Animal Physiology Laboratory, Sfax Faculty of Science, University of Sfax, Tunisia
| | - Ahmed Hakim
- Faculty of Medicine, Laboratory of Pharmacology, Sfax University, Tunisia
| | | | - Tahia Boudawara
- Anatomopathology Laboratory, CHU Habib Bourguiba, Sfax University, Tunisia
| | - Najiba Zeghal
- Animal Physiology Laboratory, Sfax Faculty of Science, University of Sfax, Tunisia
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Ben Amara I, Troudi A, Soudani N, Guermazi F, Zeghal N. Toxicity of methimazole on femoral bone in suckling rats: Alleviation by selenium. ACTA ACUST UNITED AC 2012; 64:187-95. [DOI: 10.1016/j.etp.2010.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Revised: 07/06/2010] [Accepted: 08/10/2010] [Indexed: 11/16/2022]
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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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Ben Amara I, Fetoui H, Guermazi F, Zeghal N. Dietary selenium addition improves cerebrum and cerebellum impairments induced by methimazole in suckling rats. Int J Dev Neurosci 2009; 27:719-26. [DOI: 10.1016/j.ijdevneu.2009.07.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Revised: 07/03/2009] [Accepted: 07/06/2009] [Indexed: 10/20/2022] Open
Affiliation(s)
- Ibtissem Ben Amara
- Animal Physiology LaboratorySfax Faculty of ScienceBP 11713000SfaxTunisia
| | - Hamadi Fetoui
- Animal Physiology LaboratorySfax Faculty of ScienceBP 11713000SfaxTunisia
| | - Fadhel Guermazi
- Nuclear Medicine Service, CHU Habib Bourguiba3029SfaxTunisia
| | - Najiba Zeghal
- Animal Physiology LaboratorySfax Faculty of ScienceBP 11713000SfaxTunisia
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Leite MF, Nicolau J. Sodium tungstate on some biochemical parameters of the parotid salivary gland of streptozotocin-induced diabetic rats: a short-term study. Biol Trace Elem Res 2009; 127:154-63. [PMID: 18810331 DOI: 10.1007/s12011-008-8233-5] [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: 07/28/2008] [Accepted: 09/01/2008] [Indexed: 12/26/2022]
Abstract
Several studies have shown the antidiabetic properties of sodium tungstate. In this study, we evaluated some biochemical parameters of the parotid salivary gland of streptozotocin-induced diabetic rats treated with sodium tungstate solution (2 mg/ml). The studied groups were: untreated control (UC), treated control (TC), untreated diabetic (UD), and treated diabetic (TD). After 2 and 6 weeks of treatment, parotid gland was removed and total protein and sialic acid (free and total) concentration and amylase and peroxidase activities were determined. Data were compared by variance analysis and Tukey test (p < 0.05). The sodium tungstate treatment modestly decreased the glycemia of streptozotocin-induced diabetic rats. At week 2 of the study, parotid gland of diabetic rats presented a reduction of total protein concentration (55%) and an increase of amylase (120%) and peroxidase (160%) activities, free (150%) and total (170%) sialic acid concentration. No alteration in the evaluated parameters at week 6 of the study was observed. Sodium tungstate presented no significant effect in parotid gland. Our results suggest that diabetes causes initial modification in biochemical composition of parotid. However, this gland showed a recovery capacity after 6 week of the experimental time. Sodium tungstate has no effect in peripheral tissues, such as salivary glands.
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Affiliation(s)
- Mariana Ferreira Leite
- Centro de Pesquisa em Biologia Oral, Faculdade de Odontologia da Universidade de São Paulo, Av Lineu Prestes, 2227, São Paulo, SP, Brazil, CEP 05508-000.
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Differential action of methylselenocysteine in control and alloxan-diabetic rabbits. Chem Biol Interact 2009; 177:161-71. [DOI: 10.1016/j.cbi.2008.10.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2008] [Revised: 10/02/2008] [Accepted: 10/06/2008] [Indexed: 01/25/2023]
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Winiarska K, Szymanski K, Gorniak P, Dudziak M, Bryla J. Hypoglycaemic, antioxidative and nephroprotective effects of taurine in alloxan diabetic rabbits. Biochimie 2008; 91:261-70. [PMID: 18957317 DOI: 10.1016/j.biochi.2008.09.006] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Accepted: 09/26/2008] [Indexed: 12/31/2022]
Abstract
The therapeutic potential of taurine was investigated under diabetic conditions. Alloxan diabetic rabbits were treated daily for three weeks with 1% taurine in drinking water. The following parameters were measured: 1) serum glucose, urea, creatinine and hydroxyl free radical (HFR) levels; 2) blood glutathione redox state; 3) urine albumin concentration; 4) hepatic and renal HFR levels, GSH/GSSG ratios and the activities of catalase, superoxide dismutase and the enzymes of glutathione metabolism; 5) renal NADPH oxidase activity; 6) the rates of renal and hepatic gluconeogenesis. Histological studies of kidneys were also performed. Taurine administration to diabetic rabbits resulted in 30% decrease in serum glucose level and the normalisation of diabetes-elevated rate of renal gluconeogenesis. It also decreased serum urea and creatinine concentrations, attenuated diabetes-evoked decline in GSH/GSSG ratio and abolished hydroxyl free radicals accumulation in serum, liver and kidney cortex. Animals treated with taurine exhibited elevated activities of hepatic gamma-glutamylcysteine syntetase and renal glutathione reductase and catalase. Moreover, taurine treatment evoked the normalisation of diabetes-stimulated activity of renal NADPH oxidase and attenuated both albuminuria and glomerulopathy characteristic of diabetes. In view of these data, it is concluded that: 1) diminished rate of renal gluconeogenesis seems to contribute to hypoglycaemic effect of taurine; 2) taurine-induced increase in the activities of catalase and the enzymes of glutathione metabolism is of importance for antioxidative action of this amino acid and 3) taurine nephroprotective properties might result from diminished renal NADPH oxidase activity. Thus, taurine seems to be beneficial for the therapy of both diabetes and diabetic nephropathy.
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Affiliation(s)
- Katarzyna Winiarska
- Department of Metabolic Regulation, Institute of Biochemistry, University of Warsaw, Poland.
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Lovkova MY, Sokolova SM, Buzuk GN. Medicinal plants concentrating selenium: prospects of wider use. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2008; 418:59-60. [PMID: 21249555 DOI: 10.1134/s0012496608010201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Indexed: 05/30/2023]
Affiliation(s)
- M Ya Lovkova
- Bach Institute of Biochemistry, Russian Academy of Sciences, Leninskii pr. 33, Moscow, 119071, Russia
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Drozak J, Kozlowski M, Doroszewska R, Pera L, Derlacz R, Jarzyna R, Bryla J. Differential effects of selegiline on glucose synthesis in rabbit kidney-cortex tubules and hepatocytes. In vitro and in vivo studies. Chem Biol Interact 2007; 170:162-76. [PMID: 17767924 DOI: 10.1016/j.cbi.2007.07.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2007] [Revised: 07/13/2007] [Accepted: 07/25/2007] [Indexed: 10/23/2022]
Abstract
The action of selegiline, a selective and irreversible inhibitor of monoamine oxidase B, commonly applied in the therapy of Parkinson's disease, on glucose formation was investigated in isolated rabbit hepatocytes and kidney-cortex tubules, maintaining the whole body glucose homeostasis via gluconeogenic pathway activity. An intensive hepatic metabolism of selegiline resulted in formation of selegiline-N-oxide, desmethylselegiline, methamphetamine and amphetamine, whereas during slow degradation of the drug in freshly isolated renal tubules selegiline-N-oxide was mainly produced. At 100 microM concentration selegiline markedly diminished glucose synthesis in isolated renal tubules incubated with dihydroxyacetone or alanine+glycerol+octanoate (by about 60 and 30%, respectively), while at 5 microM concentration a similar degree of inhibition was achieved in renal tubules grown in primary culture under the same conditions (about 40 and 60%, respectively). Moreover, desmethylselegiline and selegiline-N-oxide considerably diminished glucose production in renal tubules whereas selegiline and its metabolites did not affect gluconeogenesis in hepatocytes. Contrary to control animals, following selegiline administration to alloxan-diabetic rabbits for 8 days (10 mg kg(-1) body wt. daily) the blood glucose and serum creatinine levels were significantly diminished, suggesting a decrease in renal gluconeogenesis and improvement of kidney functions. Since in renal tubules selegiline induced a decline in the intracellular levels of gluconeogenic intermediates and ATP content accompanied by a decrease in oxygen consumption in both kidney-cortex and hepatic mitochondria it seems possible that its inhibitory action on renal gluconeogenesis might result from an impairment of mitochondrial function, while an intensive selegiline metabolism in hepatocytes causes decrease of its concentration and in consequence no inhibition of gluconeogenesis. In view of these observations it is likely that an increased risk of selegiline-induced hypoglycemia might be expected particularly in patients exhibiting an impairment of liver function and following transdermal administration of this drug, i.e. under conditions of increased serum selegiline concentrations.
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Affiliation(s)
- Jakub Drozak
- Department of Metabolic Regulation, Faculty of Biology, University of Warsaw, ul. I. Miecznikowa 1, 02-096 Warszawa, Poland
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