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Chen HH, Huang YL, Wu CY, Chen MC, Shiue HS, Hsu SL, Lin YC, Hsueh YM. Plasma myeloperoxidase interactions with cadmium, lead, arsenic, and selenium and their impact on chronic kidney disease. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2025; 290:117726. [PMID: 39826409 DOI: 10.1016/j.ecoenv.2025.117726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 12/21/2024] [Accepted: 01/11/2025] [Indexed: 01/22/2025]
Abstract
Myeloperoxidase (MPO) is an oxidative stress biomarker, with elevated MPO levels linked to chronic kidney disease (CKD) progression. Metal exposure is a risk factor for CKD, and is also correlated to MPO expression, with specific MPO genotypes linked to MPO expression. Therefore, we examined whether MPO plasma levels or MPO polymorphisms were linked to CKD, and explored whether these factors modified associations between CKD and metal concentrations. Accordingly, we recruited 395 age- and sex-matched controls and 215 patients with CKD (persistent estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2 for a minimum of 12 weeks without hemodialysis). We identified no associations between several MPO genotypes and CKD. However, after multivariate adjustment, plasma MPO concentrations were positively correlated with CKD odds ratio (OR) = 5.87 (95 % confidence interval [CI]: 3.14-10.96). Significant additive interactions were observed between high plasma MPO concentrations and elevated blood cadmium (Cd) and lead (Pb) levels, and total urinary arsenic (As), or low plasma selenium (Se) concentrations, leading to increased ORs for CKD, with significant synergy indices recorded. High plasma MPO concentrations also showed multiplicative interactions with elevated blood Pb levels or low plasma Se concentrations, which increased the ORs for CKD (p-values = 0.005 and 0.009, respectively). Our study is the first to show a significant interaction between plasma MPO concentration and metals affecting the OR of CKD.
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Affiliation(s)
- Hsi-Hsien Chen
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Ya-Li Huang
- Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chih-Yin Wu
- Department of Family Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Mei-Chieh Chen
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Horng-Sheng Shiue
- Department of Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Sheng-Lun Hsu
- Department of Family Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ying-Chin Lin
- Department of Family Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Geriatric Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Mei Hsueh
- Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Family Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
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Jiang J, Chen B, Tang B, Wei Q. Selenium in Prostate Cancer: Prevention, Progression, and Treatment. Pharmaceuticals (Basel) 2023; 16:1250. [PMID: 37765058 PMCID: PMC10536940 DOI: 10.3390/ph16091250] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Selenium, a trace mineral with various biological functions, has become a focal point in prostate cancer research. This review aims to present a comprehensive overview of selenium's involvement in prostate cancer, covering its impact on prevention, development, treatment, and underlying mechanisms. Observational studies have revealed a link between selenium levels and selenoproteins with prostate cancer progression. However, randomized controlled studies have shown that selenium supplementation does not prevent prostate cancer (HR: 0.95; 95% CI 0.80-1.13). This discrepancy might be attributed to selenoprotein single nucleotide polymorphisms. In the context of combinatorial therapy, selenium has demonstrated promising synergistic potential in the treatment of prostate cancer. Emerging evidence highlights the significant role of selenium and selenoproteins in prostate cancer, encompassing AR signaling, antioxidative properties, cell death, cell cycle regulation, angiogenesis, epigenetic regulation, immunoregulation, epithelial-mesenchymal transformation, and redox signal. In conclusion, selenium's diverse properties make it a promising trace mineral in prostate cancer prevention, development, and treatment and as a platform for exploring novel agents.
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Affiliation(s)
- Jinjiang Jiang
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Bo Chen
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Bo Tang
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Qiang Wei
- Department of Urology, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu 610041, China
- Institute of Urology, West China Hospital of Sichuan University, Chengdu 610041, China
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Dhillon VS, Deo P, Fenech M. Effect of Selenium and Lycopene on Radiation Sensitivity in Prostate Cancer Patients Relative to Controls. Cancers (Basel) 2023; 15:cancers15030979. [PMID: 36765936 PMCID: PMC9913686 DOI: 10.3390/cancers15030979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/28/2023] [Accepted: 02/02/2023] [Indexed: 02/05/2023] Open
Abstract
Almost half of prostate cancer (PC) patients receive radiation therapy as primary curative treatment. In spite of advances in our understanding of both nutrition and the genomics of prostate cancer, studies on the effects of nutrients on the radiation sensitivity of PC patients are lacking. We tested the hypothesis that low plasma levels of selenium and lycopene have detrimental effects on ionising radiation-induced DNA damage in prostate cancer patients relative to healthy individuals. The present study was performed in 106 PC patients and 132 age-matched controls. We found that the radiation-induced micronucleus (MN) and nuclear buds (NBuds) frequencies were significantly higher in PC patients with low selenium (p = 0.008 and p = 0.0006 respectively) or low lycopene (p = 0.007 and p = 0.0006 respectively) levels compared to the controls. The frequency of NBuds was significantly higher (p < 0.0001) in PC patients who had low levels of both selenium and lycopene compared to (i) controls with low levels of both selenium and lycopene and (ii) PC patients with high levels of both selenium and lycopene (p = 0.0001). Our results support the hypothesis that low selenium and lycopene levels increase the sensitivity to radiation-induced DNA damage and suggest that nutrition-based treatment strategies are important to minimise the DNA-damaging effects in PC patients receiving radiotherapy.
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Affiliation(s)
- Varinderpal S. Dhillon
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia
- Correspondence: (V.S.D.); (M.F.)
| | - Permal Deo
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia
| | - Michael Fenech
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia
- Genome Health Foundation, North Brighton 5048, Australia
- Correspondence: (V.S.D.); (M.F.)
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Lin PID, Cardenas A, Rifas-Shiman SL, Zota AR, Hivert MF, Aris IM, Sanders AP. Non-essential and essential trace element mixtures and kidney function in early pregnancy - A cross-sectional analysis in project viva. ENVIRONMENTAL RESEARCH 2023; 216:114846. [PMID: 36402181 PMCID: PMC9732973 DOI: 10.1016/j.envres.2022.114846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 10/21/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Some trace elements are established nephrotoxicants, yet their associations with kidney function remain understudied in the context of pregnancy, a time of substantial change in kidney physiology and function. We aimed to estimate the individual and joint associations of trace element mixtures with maternal kidney function during the 1st trimester of pregnancy (mean 9.7 gestational weeks). 1040 women from Project Viva contributed blood samples which were assessed for erythrocyte non-essential [arsenic (As), cadmium (Cd), cesium (Cs), mercury (Hg), lead (Pb)] and essential [barium (Ba), magnesium (Mg), manganese (Mn), selenium (Se), and Zinc (Zn)] trace elements, and plasma creatinine for kidney function. We estimated glomerular filtration rate using the Chronic Kidney Disease Epidemiology Collaboration (eGFRCKD-EPI) equation without race-adjustment factors. We examined associations of eGFRCKD-EPI with individual trace elements using multivariable linear regression and their mixtures using quantile-based g-computation, adjusting for sociodemographics, pregnancy characteristics, and diet. Participants in our study were predominantly White (75%), college graduates (72%), and had household income >$70,000/year (63%). After adjusting for covariates, higher Pb (β -3.51 ml/min/1.73 m2; 95% CI -5.83, -1.18) concentrations were associated with lower eGFRCKD-EPI, while higher Mg (β 10.53 ml/min/1.73 m2; 95% CI 5.35, 15.71), Se (β 5.56 ml/min/1.73 m2; 95% CI 0.82, 10.31), and Zn (β 5.88 ml/min/1.73 m2; 95% CI 0.51, 11.26) concentrations were associated with higher eGFRCKD-EPI. In mixture analyses, higher non-essential trace elements mixture concentration was associated with reduced eGFRCKD-EPI (Ψ -1.03 ml/min/1.73 m2; 95% CI: 1.92, -0.14). Conversely, higher essential trace elements mixture concentration was associated with higher eGFR (Ψ 1.42; 95% CI: 0.48, 2.37). Exposure to trace elements in early pregnancy may influence women's kidney function although reverse causation cannot be eliminated in this cross-sectional analysis. These findings have important implications for long-term cardiovascular and postpartum kidney health that warrant additional studies.
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Affiliation(s)
- Pi-I D Lin
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA.
| | - Andres Cardenas
- Department of Epidemiology and Population Health, Stanford University, Stanford, CA, USA.
| | - Sheryl L Rifas-Shiman
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA.
| | - Ami R Zota
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
| | - Marie-France Hivert
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA; Diabetes Unit, Massachusetts General Hospital, Boston, MA, USA.
| | - Izzuddin M Aris
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA.
| | - Alison P Sanders
- Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.
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Fedala A, Adjroud O, Bennoune O, Abid-Essefi S, Foughalia A, Timoumi R. Nephroprotective Efficacy of Selenium and Zinc Against Potassium Dichromate-Induced Renal Toxicity in Pregnant Wistar Albino Rats. Biol Trace Elem Res 2022; 200:4782-4794. [PMID: 35066750 DOI: 10.1007/s12011-021-03069-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/14/2021] [Indexed: 02/01/2023]
Abstract
Hexavalent chromium (CrVI) compounds are potent toxicants commonly used in numerous industries. Thus, potential toxic effects and health hazards are of high relevance. Selenium (Se) and zinc (Zn) are known for their antioxidant and chemoprotective properties. However, little is known about their protective effects against CrVI-induced renal damage during pregnancy. In this context, the present study aimed to investigate the protective efficacy of these two essential elements against potassium dichromate-induced nephrotoxicity in pregnant Wistar Albino rats. Female rats were divided into control and four treated groups of six each receiving subcutaneously on the 3rd day of pregnancy, K2Cr2O7 (10 mg/kg, s.c. single dose) alone, or in association with Se (0.3 mg/kg, s.c. single dose), ZnCl2 (20 mg/kg, s.c. single dose) or both of them simultaneously. The nephrotoxic effects were monitored by the evaluation of plasma renal parameters, oxidative stress biomarkers, DNA damage, and renal Cr content. The obtained results showed that K2Cr2O7 disturbed renal biochemical markers, induced oxidative stress and DNA fragmentation in kidney tissues, and altered renal histoarchitecture. The co-administration of Se and/or ZnCl2 has exhibited pronounced chelative, antioxidant, and genoprotective effects against K2Cr2O7-induced renal damage and attenuated partially the histopathological alterations. These results suggest that Se and Zn can be used as efficient nephroprotective agents against K2Cr2O7-induced toxicity in pregnant Wistar Albino rats.
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Affiliation(s)
- Anfal Fedala
- Laboratory of Cellular and Molecular Physio-Toxicology-Pathology and Biomolecules, Faculty of Science of Nature and Life, Department of Biology of Organisms, University of Batna 2, 5000, Batna, Algeria.
| | - Ounassa Adjroud
- Laboratory of Cellular and Molecular Physio-Toxicology-Pathology and Biomolecules, Faculty of Science of Nature and Life, Department of Biology of Organisms, University of Batna 2, 5000, Batna, Algeria
| | - Omar Bennoune
- Institute of Veterinary and Agronomic Sciences, Laboratory of Environment, Health and Animal Production (LEHAP), University of Batna 1, Batna, Algeria
| | - Salwa Abid-Essefi
- Laboratory for Research On Biologically Compatible Compounds, Faculty of Dental Medicine, Rue Avicenne, 5019, Monastir, Tunisia
| | - Abdelhamid Foughalia
- Scientific and Technical Research Center On Arid Regions (CRSTRA), University Campus Mohamed Khider, BP 1682 R.P, Biskra-07000, Biskra, Algeria
| | - Rim Timoumi
- Laboratory for Research On Biologically Compatible Compounds, Faculty of Dental Medicine, Rue Avicenne, 5019, Monastir, Tunisia
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Thomas C, Wurzer L, Malle E, Ristow M, Madreiter-Sokolowski CT. Modulation of Reactive Oxygen Species Homeostasis as a Pleiotropic Effect of Commonly Used Drugs. FRONTIERS IN AGING 2022; 3:905261. [PMID: 35821802 PMCID: PMC9261327 DOI: 10.3389/fragi.2022.905261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 05/18/2022] [Indexed: 01/17/2023]
Abstract
Age-associated diseases represent a growing burden for global health systems in our aging society. Consequently, we urgently need innovative strategies to counteract these pathological disturbances. Overwhelming generation of reactive oxygen species (ROS) is associated with age-related damage, leading to cellular dysfunction and, ultimately, diseases. However, low-dose ROS act as crucial signaling molecules and inducers of a vaccination-like response to boost antioxidant defense mechanisms, known as mitohormesis. Consequently, modulation of ROS homeostasis by nutrition, exercise, or pharmacological interventions is critical in aging. Numerous nutrients and approved drugs exhibit pleiotropic effects on ROS homeostasis. In the current review, we provide an overview of drugs affecting ROS generation and ROS detoxification and evaluate the potential of these effects to counteract the development and progression of age-related diseases. In case of inflammation-related dysfunctions, cardiovascular- and neurodegenerative diseases, it might be essential to strengthen antioxidant defense mechanisms in advance by low ROS level rises to boost the individual ROS defense mechanisms. In contrast, induction of overwhelming ROS production might be helpful to fight pathogens and kill cancer cells. While we outline the potential of ROS manipulation to counteract age-related dysfunction and diseases, we also raise the question about the proper intervention time and dosage.
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Affiliation(s)
- Carolin Thomas
- Laboratory of Energy Metabolism Institute of Translational Medicine Department of Health Sciences and Technology ETH Zurich, Schwerzenbach, Switzerland
| | - Lia Wurzer
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Ernst Malle
- Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Michael Ristow
- Laboratory of Energy Metabolism Institute of Translational Medicine Department of Health Sciences and Technology ETH Zurich, Schwerzenbach, Switzerland
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Akintunde JK, Ajiboye JA, Siemuri EO, Olabisi OO. Fansidar drug induces cytotoxicity in some vital tissues in a rat model: combination defensive effect of selenium and zinc capsules. Ther Adv Drug Saf 2021; 12:20420986211027101. [PMID: 34349977 PMCID: PMC8287264 DOI: 10.1177/20420986211027101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 06/04/2021] [Indexed: 12/05/2022] Open
Abstract
AIM Fansidar (FAN) is widely used as an antimalarial drug, but it may cause hepatoxicity, nephrotoxicity, and neurotoxicity. Hence, the study examines the cytoprotection of selenium (Se) and zinc (Zn) tablets against FAN induced toxicity. METHOD Group I was given distilled water. Groups II, III, IV, and V received 50 mg/kg FAN by gavage. Group III was co-treated with a 50 mg/kg Se tablet. Group IV was co-treated with a 50 mg/kg Zn tablet. Group V was co-treated with a 50 mg/kg Se tablet + 50 mg/kg Zn tablet. The exposure lasted for 7 days (sub-acute exposure). RESULT FAN causes cytotoxicity through significant (p < 0.05) alteration of antioxidant molecules and hepatic enzymes. It also significantly (p < 0.05) induces renal, hepatocyte, and purkinje cell damage, but no visible lesion on testicular cells. The FAN induced cytotoxicity was significantly (p < 0.05) reversed on treatment with both single and combined antioxidant tablets. CONCLUSION Our study supports the view that antioxidant micronutrient (Se and Zn) tablets may be a useful modulator in alleviating FAN induced oxidative stress and cytotoxicity in male rats. PLAIN LANGUAGE SUMMARY Combined selenium and zinc capsules: better therapy against cytotoxicity Fansidar was approved by United States' Food and Drug Administration as an anti-malarial drug to treat acute and complicated malaria fever among patients in West Africa; however, its usage elicits toxicity to several organs of the body. It was elucidated that the combination of selenium and zinc capsules promotes organ wellness on co-treatment with Fansidar.
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Affiliation(s)
- J. K Akintunde
- Applied Biochemistry and Molecular Toxicology Research Group, Department of Biochemistry, College of Biosciences, Federal University of Agriculture, P.M.B 2240, Abeokuta, Nigeria
| | - J. A Ajiboye
- Department of Chemical Sciences, Biochemistry unit, College of Natural and Applied Sciences, Bells University of Technology, Ota, Ogun State, Nigeria
| | - E. O Siemuri
- Applied Biochemistry and Molecular Toxicology Research Group, Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Ogun, Nigeria
| | - O. O. Olabisi
- Department of Chemical Sciences, Biochemistry unit, College of Natural and Applied Sciences, Bells University of Technology, Ota, Ogun State, Nigeria
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Abdel-Magied N, Elkady AA, Abdel Fattah SM. Effect of Low-Level Laser on Some Metals Related to Redox State and Histological Alterations in the Liver and Kidney of Irradiated Rats. Biol Trace Elem Res 2020; 194:410-422. [PMID: 31313245 DOI: 10.1007/s12011-019-01779-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 06/11/2019] [Indexed: 12/19/2022]
Abstract
Low-level laser therapy (LLLT) is a type of medicine that uses laser light at low levels to activate the cellular chromophores and the initiation of cellular signaling. This study aimed to evaluate the photomodulation effect of LLL against ionizing radiation (IR)-induced metal disorders related to redox state in the liver and kidney of male rats. Rats were divided into 4 groups (control, LLLT, IR (7Gy), IR+LLLT). The results showed that LLLT 870 nm one time for 3 days post-irradiation revealed redistribution of iron (Fe), copper (Cu), zinc (Zn),calcium (Ca), magnesium (Mg), manganese (Mn), and selenium (Se) in the liver and kidney tissues. Moreover, LLLT attenuated the oxidative stress manifested by a marked reduction of hydrogen peroxide (H2O2), 4-hydroxynonenal (4-HNE), total oxidant state (TOS), and oxidative stress index (OSI) associated with a significant increase in total antioxidant status (TAS), glutathione (GSH) content, and glutathione peroxide (GPx), glutathione reductase (GRx), superoxide dismutase(SOD), and catalase (CAT) activities. Moreover, LLLT displayed an increase in glutathione-S-transferase (GSH-T) and ceruloplasmin activities and a decrease in the activity of gamma-glutamyl transferase (γ-GT). Besides, LLLT significantly attenuated the histological changes in the liver and kidney tissues, denoted by a reduction in the necrotic and degenerative changes of hepatocytes and an improvement in the corpuscles and tubules of the kidney. In conclusion, LLLT could be used as an adjuvant treatment post-exposure to radiation, while it is not beneficial to use it on the normal tissue.
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Affiliation(s)
- Nadia Abdel-Magied
- Radiation Biology Research Department, National Center for Radiation Research and Technology (NCRRT), Cairo, Egypt.
| | - Ahmed A Elkady
- Health Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Cairo, Egypt
| | - Salma M Abdel Fattah
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), P.O. Box 29, Nasr City, Cairo, Egypt
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The effect of selenium on the autophagy of macrophage infected by Staphylococcus aureus. Int Immunopharmacol 2020; 83:106406. [PMID: 32193097 DOI: 10.1016/j.intimp.2020.106406] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 12/18/2022]
Abstract
Selenium can alleviate the inflammatory reaction infected by Staphylococcus aureus (S. aureus). However, the role of selenium on the autophagy in RAW264.7 macrophages infected by S. aureus has not been reported. The goal of this study was to clarify the effect of selenium on the autophagy and related inflammatory pathways (MAPK and NF-κB) in RAW264.7 macrophages infected by S. aureus. RAW264.7 macrophages were co-treated with Na2SeO3 and S. aureus. The expression of related inflammatory pathways (MAPK and NF-κB) and autophagy-related proteins were detected by Western blotting. The microtubule-binding protein light chain 3 (LC3) puncta were measured with immunofluorescence staining. The ultrastructure of RAW264.7 macrophages infected by S. aureus was detected by transmission electron microscope (TEM). And plate counting method was used to detect the proliferation of S. aureus in RAW264.7 macrophages. The results showed that the expression levels of LC3 II increased and the expression levels of p62 decreased after adding selenium, compared with S. aureus infection group. Compared with S. aureus infection group, the intracellular LC3 puncta and autophagic vesicles, autophagosomes, and autolysosomes increased with selenium supplementation. The number of S. aureus proliferation decreased with addition of selenium, compared with S. aureus infection group. Selenium could significantly inhibit the phosphorylation of MAPK and NF-κB signaling pathway key proteins, compared with S. aureus infection group. In summary, selenium could promote the autophagy in macrophages infected by S. aureus, alleviate the blockade of autophagic flow, depress the transcription of MAPK and NF-κB signaling pathways, and inhibit the proliferation of S. aureus in RAW264.7 macrophages.
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Sotler R, Poljšak B, Dahmane R, Jukić T, Pavan Jukić D, Rotim C, Trebše P, Starc A. PROOXIDANT ACTIVITIES OF ANTIOXIDANTS AND THEIR IMPACT ON HEALTH. Acta Clin Croat 2019; 58:726-736. [PMID: 32595258 PMCID: PMC7314298 DOI: 10.20471/acc.2019.58.04.20] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This review article is focused on the impact of antioxidants and prooxidants on health with emphasis on the type of antioxidants that should be taken. Medical researchers suggest that diet may be the solution for the control of chronic diseases such as cardiovascular complications, hypertension, diabetes mellitus, and different cancers. In this survey, we found scientific evidence that the use of antioxidants should be limited only to the cases where oxidative stress has been identified. This is often the case of specific population groups such as postmenopausal women, the elderly, infants, workers exposed to environmental pollutants, and the obese. Before starting any supplementation, it is necessary to measure oxidative stress and to identify and eliminate the possible sources of free radicals and thus increased oxidative stress.
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Affiliation(s)
| | - Borut Poljšak
- 1Faculty of Health Sciences, University of Ljubljana, Department of Nursing, Ljubljana, Slovenia; 2Faculty of Health Sciences, University of Ljubljana, Department of Health Ecology and Control, Ljubljana, Slovenia; 3Faculty of Health Sciences, University of Ljubljana, Department of Biomedicine in Health Care, Ljubljana, Slovenia; 4Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 5Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Gynecology and Obstetrics, Osijek, Croatia; 6Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia; 7Faculty of Health Sciences, University of Ljubljana, Department of Public Health, Ljubljana, Slovenia
| | - Raja Dahmane
- 1Faculty of Health Sciences, University of Ljubljana, Department of Nursing, Ljubljana, Slovenia; 2Faculty of Health Sciences, University of Ljubljana, Department of Health Ecology and Control, Ljubljana, Slovenia; 3Faculty of Health Sciences, University of Ljubljana, Department of Biomedicine in Health Care, Ljubljana, Slovenia; 4Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 5Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Gynecology and Obstetrics, Osijek, Croatia; 6Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia; 7Faculty of Health Sciences, University of Ljubljana, Department of Public Health, Ljubljana, Slovenia
| | - Tomislav Jukić
- 1Faculty of Health Sciences, University of Ljubljana, Department of Nursing, Ljubljana, Slovenia; 2Faculty of Health Sciences, University of Ljubljana, Department of Health Ecology and Control, Ljubljana, Slovenia; 3Faculty of Health Sciences, University of Ljubljana, Department of Biomedicine in Health Care, Ljubljana, Slovenia; 4Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 5Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Gynecology and Obstetrics, Osijek, Croatia; 6Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia; 7Faculty of Health Sciences, University of Ljubljana, Department of Public Health, Ljubljana, Slovenia
| | - Doroteja Pavan Jukić
- 1Faculty of Health Sciences, University of Ljubljana, Department of Nursing, Ljubljana, Slovenia; 2Faculty of Health Sciences, University of Ljubljana, Department of Health Ecology and Control, Ljubljana, Slovenia; 3Faculty of Health Sciences, University of Ljubljana, Department of Biomedicine in Health Care, Ljubljana, Slovenia; 4Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 5Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Gynecology and Obstetrics, Osijek, Croatia; 6Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia; 7Faculty of Health Sciences, University of Ljubljana, Department of Public Health, Ljubljana, Slovenia
| | - Cecilija Rotim
- 1Faculty of Health Sciences, University of Ljubljana, Department of Nursing, Ljubljana, Slovenia; 2Faculty of Health Sciences, University of Ljubljana, Department of Health Ecology and Control, Ljubljana, Slovenia; 3Faculty of Health Sciences, University of Ljubljana, Department of Biomedicine in Health Care, Ljubljana, Slovenia; 4Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 5Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Gynecology and Obstetrics, Osijek, Croatia; 6Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia; 7Faculty of Health Sciences, University of Ljubljana, Department of Public Health, Ljubljana, Slovenia
| | - Polonca Trebše
- 1Faculty of Health Sciences, University of Ljubljana, Department of Nursing, Ljubljana, Slovenia; 2Faculty of Health Sciences, University of Ljubljana, Department of Health Ecology and Control, Ljubljana, Slovenia; 3Faculty of Health Sciences, University of Ljubljana, Department of Biomedicine in Health Care, Ljubljana, Slovenia; 4Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 5Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Gynecology and Obstetrics, Osijek, Croatia; 6Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia; 7Faculty of Health Sciences, University of Ljubljana, Department of Public Health, Ljubljana, Slovenia
| | - Andrej Starc
- 1Faculty of Health Sciences, University of Ljubljana, Department of Nursing, Ljubljana, Slovenia; 2Faculty of Health Sciences, University of Ljubljana, Department of Health Ecology and Control, Ljubljana, Slovenia; 3Faculty of Health Sciences, University of Ljubljana, Department of Biomedicine in Health Care, Ljubljana, Slovenia; 4Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 5Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Gynecology and Obstetrics, Osijek, Croatia; 6Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia; 7Faculty of Health Sciences, University of Ljubljana, Department of Public Health, Ljubljana, Slovenia
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11
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Hussain RA, Badshah A, Ahmed N, Pezzuto JM, Kondratyuk TP, Park EJ, Hussain I. Synthesis, characterization and biological applications of selenoureas having ferrocene and substituted benzoyl functionalities. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.05.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Abstract
The free radical theory of ageing (FRTA), presented by Denham Harman in 1950s, proposed that aerobic organisms age due to reactive oxygen species (ROS)/free radical induced damage that accumulates in cells over time. Since antioxidants can neutralize free radicals by electron donation, the most logical approach was to use them as supplements in order to prevent ageing. In this chapter, we will discuss the inability of antioxidant supplementation to improve health and longevity.Although many antioxidants are efficient free radical quenchers in vitro, their in vivo effects are less clear. Recent evidence from human trials implies that antioxidant supplements do not increase lifespan and can even increase the incidence of diseases. Synthetic antioxidants were unable to consistently prevent ROS-induced damage in vivo, possibly as dietary antioxidants may not act only as ROS scavengers. Antioxidants can have dichotomous roles on ROS production. They are easily oxidized and can act as oxidants to induce damage when present in large concentrations. In appropriate amounts, they can modulate cellular metabolism by induction of cell stress responses and/or activate cell damage repair and maintenance systems. Therefore, the antioxidants' beneficial role may be reversed/prevented by excessive amounts of antioxidant supplements. On the other hand, ROS are also involved in many important physiological processes in humans, such as induction of stress responses, pathogen defence, and systemic signalling. Thus, both "anti-oxidative or reductive stress" (the excess of antioxidants) as well as oxidative stress (the excess of ROS) can be damaging and contribute to the ageing processes.
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13
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Sahin I, Bilir B, Ali S, Sahin K, Kucuk O. Soy Isoflavones in Integrative Oncology: Increased Efficacy and Decreased Toxicity of Cancer Therapy. Integr Cancer Ther 2019; 18:1534735419835310. [PMID: 30897972 PMCID: PMC6431760 DOI: 10.1177/1534735419835310] [Citation(s) in RCA: 42] [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: 01/07/2019] [Accepted: 02/07/2019] [Indexed: 12/19/2022] Open
Abstract
Soy consumption in human diet has been linked to decreased incidence of a variety of cancers, suggesting a potential role of soy products in cancer prevention and control. Furthermore, a substantial body of evidence in the literature suggests that soy supplementation may improve the efficacy and prevent the adverse effects of cancer chemotherapy and radiation therapy. Isoflavones constitute the predominant anticancer bioactive compounds in soy. Genistein, which is the most abundant and active isoflavone in soy, has a multitude of effects on cancer cells, including inhibition of NF-κB activation and DNA methylation, enhancement of histone acetylation, inhibition of cell growth and metastasis, and antiangiogenic, anti-inflammatory, and anti-oxidant effects. Isoflavones are orally bioavailable, easily metabolized, and usually considered safe. In this article, we review in vitro and in vivo evidence as well as the results of clinical and epidemiological studies on the effects of soy isoflavones, with a focus on sensitization of cancer cells to chemotherapy and radiation while at the same time protecting normal cells from the harmful effects of these treatments.
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Affiliation(s)
- Ilyas Sahin
- The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Birdal Bilir
- Emory University School of Medicine, Atlanta, GA, USA
- Emory University, Atlanta, GA, USA
| | | | | | - Omer Kucuk
- Emory University School of Medicine, Atlanta, GA, USA
- Emory University, Atlanta, GA, USA
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14
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Zheng SF, Bao RK, Zhang QJ, Wang SC, Lin HJ. Endogenous Hydrogen Sulfide Promotes Apoptosis via Mitochondrial Pathways in the Livers of Broilers with Selenium Deficiency Exudative Diathesis Disease. Biol Trace Elem Res 2018. [PMID: 29524194 DOI: 10.1007/s12011-018-1292-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Hydrogen sulfide (H2S), an endogenous gasotransmitter, plays an important role in apoptosis. Exudative diathesis (ED) disease is associated with dietary selenium (Se) deficiency in broilers. The liver is one of the target organs of Se deficiency; however, little is known about the effect of H2S on apoptosis via mitochondrial pathways in the livers of broilers with ED disease. In the present study, we aimed to investigate the correlation between endogenous H2S and mitochondrial-mediated apoptosis in the livers of broilers with ED disease, as induced by Se deficiency. One hundred twenty healthy, 1-day-old broilers were randomly assigned to one of two groups (60 each) based on diet: Basal diet (control group, 0.2 mg/kg Se) or a low-Se diet (-Se group, 0.033 mg/kg Se). At day 20, 15 broilers of a similar weight were sacrificed from the control group, while the same number of broilers were euthanatized from the -Se group when displaying typical symptoms of ED between days 18 and 25. The livers were collected, and apoptosis was measured using a TUNEL assay. Additionally, H2S concentration, the expression of H2S synthases of cystathionine γ-lyase (CSE), cystathionine β-synthase (CBS), and 3-mercaptopyruvate sulfurtransferase (3-MST), as well as mitochondrial apoptosis-related genes of Bcl-2, Bax, Bak, Cyt-C, Caspase-9, Caspase-3, and p53, were examined in livers. The results indicated that Se deficiency could induce apoptosis in the livers of broilers. Swelling, fractures, and vacuolization were visible in the mitochondrial cristae in the livers of the -Se group. The expression of H2S synthase-related genes and H2S concentration was significantly enhanced (P < 0.05) in the livers of the -Se group compared to controls. Moreover, a low-Se diet downregulated (P < 0.05) the level of Bcl-2 and upregulated (P < 0.05) the levels of Bax, Bak, Cyt-C, Caspase-9, Caspase-3, and p53. These results suggest that an H2S increase in the livers of ED broilers, which was induced by Se deficiency, is related to apoptosis mediated by mitochondrial pathways.
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Affiliation(s)
- Shu-Fang Zheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P. R. China
| | - Rong-Kun Bao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P. R. China
| | - Qiao-Jian Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P. R. China
| | - Sheng-Chen Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P. R. China
| | - Hong-Jin Lin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P. R. China.
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin, 150030, P. R. China.
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15
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Gallelli CA, Calcagnini S, Romano A, Koczwara JB, de Ceglia M, Dante D, Villani R, Giudetti AM, Cassano T, Gaetani S. Modulation of the Oxidative Stress and Lipid Peroxidation by Endocannabinoids and Their Lipid Analogues. Antioxidants (Basel) 2018; 7:E93. [PMID: 30021985 PMCID: PMC6070960 DOI: 10.3390/antiox7070093] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 07/10/2018] [Accepted: 07/13/2018] [Indexed: 02/06/2023] Open
Abstract
Growing evidence supports the pivotal role played by oxidative stress in tissue injury development, thus resulting in several pathologies including cardiovascular, renal, neuropsychiatric, and neurodegenerative disorders, all characterized by an altered oxidative status. Reactive oxygen and nitrogen species and lipid peroxidation-derived reactive aldehydes including acrolein, malondialdehyde, and 4-hydroxy-2-nonenal, among others, are the main responsible for cellular and tissue damages occurring in redox-dependent processes. In this scenario, a link between the endocannabinoid system (ECS) and redox homeostasis impairment appears to be crucial. Anandamide and 2-arachidonoylglycerol, the best characterized endocannabinoids, are able to modulate the activity of several antioxidant enzymes through targeting the cannabinoid receptors type 1 and 2 as well as additional receptors such as the transient receptor potential vanilloid 1, the peroxisome proliferator-activated receptor alpha, and the orphan G protein-coupled receptors 18 and 55. Moreover, the endocannabinoids lipid analogues N-acylethanolamines showed to protect cell damage and death from reactive aldehydes-induced oxidative stress by restoring the intracellular oxidants-antioxidants balance. In this review, we will provide a better understanding of the main mechanisms triggered by the cross-talk between the oxidative stress and the ECS, focusing also on the enzymatic and non-enzymatic antioxidants as scavengers of reactive aldehydes and their toxic bioactive adducts.
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Affiliation(s)
- Cristina Anna Gallelli
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Silvio Calcagnini
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Adele Romano
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Justyna Barbara Koczwara
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Marialuisa de Ceglia
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Donatella Dante
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Rosanna Villani
- C.U.R.E. University Centre for Liver Disease Research and Treatment, Department of Medical and Surgical Sciences, Institute of Internal Medicine, University of Foggia, 71122 Foggia, Italy.
| | - Anna Maria Giudetti
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Monteroni, 73100 Lecce, Italy.
| | - Tommaso Cassano
- Department of Clinical and Experimental Medicine, University of Foggia, Via Luigi Pinto, c/o Ospedali Riuniti, 71122 Foggia, Italy.
| | - Silvana Gaetani
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy.
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16
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Afzal M, Kazmi I, Khan R, Rana P, Kumar V, Al-Abbasi FA, Zamzami MA, Anwar F. Thiamine potentiates chemoprotective effects of ibuprofen in DEN induced hepatic cancer via alteration of oxidative stress and inflammatory mechanism. Arch Biochem Biophys 2017; 623-624:58-63. [DOI: 10.1016/j.abb.2017.05.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 05/07/2017] [Accepted: 05/09/2017] [Indexed: 12/23/2022]
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17
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Ivanenkov YA, Veselov MS, Rezekin IG, Skvortsov DA, Sandulenko YB, Polyakova MV, Bezrukov DS, Vasilevsky SV, Kukushkin ME, Moiseeva AA, Finko AV, Koteliansky VE, Klyachko NL, Filatova LA, Beloglazkina EK, Zyk NV, Majouga AG. Synthesis, isomerization and biological activity of novel 2-selenohydantoin derivatives. Bioorg Med Chem 2016; 24:802-11. [PMID: 26780833 DOI: 10.1016/j.bmc.2015.12.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 12/25/2015] [Accepted: 12/31/2015] [Indexed: 11/16/2022]
Abstract
A set of novel selenohydantoins were synthesized via a convenient and versatile approach involving the reaction of isoselenocyanates with various amines. We also revealed an unexpected Z→E isomerization of pyridin-2-yl-substituted selenohydantoins in the presence of Cu(2+) cations. The detailed mechanism of this transformation was suggested on the basis of quantum-chemical calculations, and the key role of Cu(2+) was elucidated. The obtained compounds were subsequently evaluated against a panel of different cancer cell lines. As a result, several molecules were identified as promising micromolar hits with good selectivity index. Instead of analogous thiohydantoins, which have been synthesized previously, selenohydantoins demonstrated a relatively high antioxidant activity comparable (or greater) to the reference molecule, Ebselen, a clinically approved drug candidate. The most active compounds have been selected for further biological trials.
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Affiliation(s)
- Yan A Ivanenkov
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation; National University of Science and Technology MISiS, Moscow 119049, Russian Federation; Moscow Institute of Physics and Technology (MIPT), Dolgoprudny, InstitutskiPereulok 9, Moskovskaya Oblast, Russian Federation.
| | - Mark S Veselov
- Moscow Institute of Physics and Technology (MIPT), Dolgoprudny, InstitutskiPereulok 9, Moskovskaya Oblast, Russian Federation.
| | - Igor G Rezekin
- Moscow Institute of Physics and Technology (MIPT), Dolgoprudny, InstitutskiPereulok 9, Moskovskaya Oblast, Russian Federation
| | - Dmitriy A Skvortsov
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation
| | - Yuri B Sandulenko
- Moscow Institute of Physics and Technology (MIPT), Dolgoprudny, InstitutskiPereulok 9, Moskovskaya Oblast, Russian Federation
| | - Marina V Polyakova
- Moscow Institute of Physics and Technology (MIPT), Dolgoprudny, InstitutskiPereulok 9, Moskovskaya Oblast, Russian Federation
| | - Dmitry S Bezrukov
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation
| | - Sergey V Vasilevsky
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation
| | - Maxim E Kukushkin
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation
| | - Anna A Moiseeva
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation
| | - Alexander V Finko
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation
| | - Victor E Koteliansky
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation
| | - Natalia L Klyachko
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation; National University of Science and Technology MISiS, Moscow 119049, Russian Federation
| | - Lubov A Filatova
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation
| | - Elena K Beloglazkina
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation; National University of Science and Technology MISiS, Moscow 119049, Russian Federation
| | - Nikolay V Zyk
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation
| | - Alexander G Majouga
- Moscow State University, Chemistry Dept., 119991 Moscow, Leninskie Gory, Building 1/3, GSP-1, Russian Federation; National University of Science and Technology MISiS, Moscow 119049, Russian Federation.
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18
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Zhou X, Yuping Z, Zhao H, Liang J, Zhang Y, Shi S. Antioxidant homoisoflavonoids from Polygonatum odoratum. Food Chem 2015; 186:63-8. [DOI: 10.1016/j.foodchem.2015.02.058] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 02/08/2015] [Accepted: 02/12/2015] [Indexed: 01/07/2023]
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19
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Hosseinimehr SJ. The protective effects of trace elements against side effects induced by ionizing radiation. Radiat Oncol J 2015; 33:66-74. [PMID: 26157675 PMCID: PMC4493430 DOI: 10.3857/roj.2015.33.2.66] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 06/18/2015] [Accepted: 06/22/2015] [Indexed: 12/14/2022] Open
Abstract
Trace elements play crucial role in the maintenance of genome stability in the cells. Many endogenous defense enzymes are containing trace elements such as superoxide dismutase and metalloproteins. These enzymes are contributing in the detoxification of reactive oxidative species (ROS) induced by ionizing radiation in the cells. Zinc, copper, manganese, and selenium are main trace elements that have protective roles against radiation-induced DNA damages. Trace elements in the free salt forms have protective effect against cell toxicity induced by oxidative stress, metal-complex are more active in the attenuation of ROS particularly through superoxide dismutase mimetic activity. Manganese-complexes in protection of normal cell against radiation without any protective effect on cancer cells are more interesting compounds in this topic. The aim of this paper to review the role of trace elements in protection cells against genotoxicity and side effects induced by ionizing radiation.
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Affiliation(s)
- Seyed Jalal Hosseinimehr
- Department of Radiopharmacy, Faculty of Pharmacy, Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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20
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Hussain RA, Badshah A, Akbar K. Comparative DNA binding and antioxidant studies of acetyl and benzoyl substituted ferrocene incorporated selenoureas. RUSS J ELECTROCHEM+ 2015. [DOI: 10.1134/s1023193515030088] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Puspitasari IM, Abdulah R, Yamazaki C, Kameo S, Nakano T, Koyama H. Updates on clinical studies of selenium supplementation in radiotherapy. Radiat Oncol 2014; 9:125. [PMID: 24885670 PMCID: PMC4073179 DOI: 10.1186/1748-717x-9-125] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 05/11/2014] [Indexed: 02/12/2023] Open
Abstract
To establish guidelines for the selenium supplementation in radiotherapy we assessed the benefits and risks of selenium supplementation in radiotherapy. Clinical studies on the use of selenium in radiotherapy were searched in the PubMed electronic database in January 2013. Sixteen clinical studies were identified among the 167 articles selected in the initial search. Ten articles were observational studies, and the other 6 articles reported studies on the effects of selenium supplementation in patients with cancer who underwent radiotherapy. The studies were conducted worldwide including European, American and Asian countries between 1987 and 2012. Plasma, serum or whole blood selenium levels were common parameters used to assess the effects of radiotherapy and the selenium supplementation status. Selenium supplementation improved the general conditions of the patients, improved their quality of life and reduced the side effects of radiotherapy. At the dose of selenium used in these studies (200–500 μg/day), selenium supplementation did not reduce the effectiveness of radiotherapy, and no toxicities were reported. Selenium supplementation may offer specific benefits for several types of cancer patients who undergo radiotherapy. Because high-dose selenium and long-term supplementation may be unsafe due to selenium toxicity, more evidence-based information and additional research are needed to ensure the therapeutic benefits of selenium supplementation.
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Affiliation(s)
| | | | | | | | | | - Hiroshi Koyama
- Department of Public Health, Gunma University Graduate School of Medicine, 3-39-22 Showa Machi, Maebashi 371-8511, Japan.
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22
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Fernández-Herrera MA, Sandoval-Ramírez J, Sánchez-Sánchez L, López-Muñoz H, Escobar-Sánchez ML. Probing the selective antitumor activity of 22-oxo-26-selenocyanocholestane derivatives. Eur J Med Chem 2014; 74:451-60. [DOI: 10.1016/j.ejmech.2013.12.059] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 12/29/2013] [Accepted: 12/30/2013] [Indexed: 11/26/2022]
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23
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Hussain RA, Badshah A, Shah A. Synthesis and biological applications of selenoureas. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3093] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Amin Badshah
- Department of Chemistry; Quaid-i-Azam University; 45320 Islamabad Pakistan
| | - Afzal Shah
- Department of Chemistry; Quaid-i-Azam University; 45320 Islamabad Pakistan
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24
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Hussain RA, Badshah A, Tahir MN, Hassan TU, Bano A. Synthesis, Chemical Characterization, DNA Binding, Antioxidant, Antibacterial, and Antifungal Activities of Ferrocence Incorporated Selenoureas. J Biochem Mol Toxicol 2013; 28:60-8. [DOI: 10.1002/jbt.21536] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Revised: 10/09/2013] [Accepted: 10/16/2013] [Indexed: 02/03/2023]
Affiliation(s)
- Raja Azadar Hussain
- Coordination Chemistry Laboratory; Department of Chemistry; Quaid-i-Azam University; Islamabad Pakistan
| | - Amin Badshah
- Coordination Chemistry Laboratory; Department of Chemistry; Quaid-i-Azam University; Islamabad Pakistan
| | | | - Tamoor-ul- Hassan
- Phytoharmone Laboratory; Department of Plant Sciences; Quaid-i-Azam University; Islamabad Pakistan
| | - Asghari Bano
- Phytoharmone Laboratory; Department of Plant Sciences; Quaid-i-Azam University; Islamabad Pakistan
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25
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Synthesis, chemical characterization, DNA binding and antioxidant studies of ferrocene incorporated selenoure. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.06.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Trejo-Solís C, Pedraza-Chaverrí J, Torres-Ramos M, Jiménez-Farfán D, Cruz Salgado A, Serrano-García N, Osorio-Rico L, Sotelo J. Multiple molecular and cellular mechanisms of action of lycopene in cancer inhibition. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:705121. [PMID: 23970935 PMCID: PMC3736525 DOI: 10.1155/2013/705121] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 06/05/2013] [Accepted: 06/19/2013] [Indexed: 12/15/2022]
Abstract
Epidemiological studies suggest that including fruits, vegetables, and whole grains in regular dietary intake might prevent and reverse cellular carcinogenesis, reducing the incidence of primary tumours. Bioactive components present in food can simultaneously modulate more than one carcinogenic process, including cancer metabolism, hormonal balance, transcriptional activity, cell-cycle control, apoptosis, inflammation, angiogenesis and metastasis. Some studies have shown an inverse correlation between a diet rich in fruits, vegetables, and carotenoids and a low incidence of different types of cancer. Lycopene, the predominant carotenoid found in tomatoes, exhibits a high antioxidant capacity and has been shown to prevent cancer, as evidenced by clinical trials and studies in cell culture and animal models. In vitro studies have shown that lycopene treatment can selectively arrest cell growth and induce apoptosis in cancer cells without affecting normal cells. In vivo studies have revealed that lycopene treatment inhibits tumour growth in the liver, lung, prostate, breast, and colon. Clinical studies have shown that lycopene protects against prostate cancer. One of the main challenges in cancer prevention is the integration of new molecular findings into clinical practice. Thus, the identification of molecular biomarkers associated with lycopene levels is essential for improving our understanding of the mechanisms underlying its antineoplastic activity.
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Affiliation(s)
- Cristina Trejo-Solís
- Departamentos de Neuroinmunología, Instituto Nacional de Neurología y Neurocirugía (INNN), C.P. 14269, Mexico City, DF, Mexico
| | - Jose Pedraza-Chaverrí
- Neurobiología Molecular y Celular INNN-UNAM, Instituto Nacional de Neurología y Neurocirugía (INNN), C.P. 14269, Mexico City, DF, Mexico
- Facultad de Química, Universidad Nacional Autónoma de México (UNAM), C.P. 04510, Mexico City, DF, Mexico
| | - Mónica Torres-Ramos
- Unidad Periferica de NeuroCiencias INNN-UNAM, Instituto Nacional de Neurología y Neurocirugía (INNN), C.P. 14269, Mexico City, DF, Mexico
| | - Dolores Jiménez-Farfán
- Facultad de Odontología, Universidad Nacional Autónoma de México (UNAM), C.P. 04510, Mexico City, DF, Mexico
| | - Arturo Cruz Salgado
- Facultad de Odontología, Universidad Nacional Autónoma de México (UNAM), C.P. 04510, Mexico City, DF, Mexico
| | - Norma Serrano-García
- Neurobiología Molecular y Celular INNN-UNAM, Instituto Nacional de Neurología y Neurocirugía (INNN), C.P. 14269, Mexico City, DF, Mexico
- Facultad de Química, Universidad Nacional Autónoma de México (UNAM), C.P. 04510, Mexico City, DF, Mexico
| | - Laura Osorio-Rico
- Neuroquimica, Instituto Nacional de Neurología y Neurocirugía (INNN), C.P. 14269, Mexico City, DF, Mexico
| | - Julio Sotelo
- Departamentos de Neuroinmunología, Instituto Nacional de Neurología y Neurocirugía (INNN), C.P. 14269, Mexico City, DF, Mexico
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Paschos A, Pandya R, Duivenvoorden WCM, Pinthus JH. Oxidative stress in prostate cancer: changing research concepts towards a novel paradigm for prevention and therapeutics. Prostate Cancer Prostatic Dis 2013; 16:217-25. [PMID: 23670256 DOI: 10.1038/pcan.2013.13] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/14/2013] [Accepted: 03/30/2013] [Indexed: 02/07/2023]
Abstract
A mounting body of evidence suggests that increased production of reactive oxygen species (ROS) is linked to aging processes and to the etiopathogenesis of aging-related diseases, such as cancer, diabetes, atherosclerosis and degenerative diseases like Parkinson's and Alzheimer's. Excess ROS are deleterious to normal cells, while in cancer cells, they can lead to accelerated tumorigenesis. In prostate cancer (PC), oxidative stress, an innate key event characterized by supraphysiological ROS concentrations, has been identified as one of the hallmarks of the aggressive disease phenotype. Specifically, oxidative stress is associated with PC development, progression and the response to therapy. Nevertheless, a thorough understanding of the relationships between oxidative stress, redox homeostasis and the activation of proliferation and survival pathways in healthy and malignant prostate remains elusive. Moreover, the failure of chemoprevention strategies targeting oxidative stress reduced the level of interest in the field after the recent negative results of the Selenium and Vitamin E Cancer Prevention Trial (SELECT) trial. Therefore, a revisit of the concept is warranted and several key issues need to be addressed: The consequences of changes in ROS levels with respect to altered redox homeostasis and redox-regulated processes in PC need to be established. Similarly, the key molecular events that cause changes in the generation of ROS in PC and the role for therapeutic strategies aimed at ameliorating oxidative stress need to be identified. Moreover, the issues whether genetic/epigenetic susceptibility for oxidative stress-induced prostatic carcinogenesis is an individual phenomenon and what measurements adequately quantify prostatic oxidative stress are also crucial. Addressing these matters will provide a more rational basis to improve the design of redox-related clinical trials in PC. This review summarizes accepted concepts and principles in redox research, and explores their implications and limitations in PC.
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Affiliation(s)
- A Paschos
- Department of Surgery, McMaster University and Juravinski Cancer Centre, Hamilton, Ontario, Canada
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Sonaa E, Usha S, Ja In J. An ex vivo study of selenium, genistein on the morphological and nuclear changes in anticancer drug-induced apoptosis in human peripheral blood lymphocytes. Biofactors 2013; 39:279-93. [PMID: 23355315 DOI: 10.1002/biof.1069] [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: 08/27/2012] [Accepted: 10/23/2012] [Indexed: 01/07/2023]
Abstract
Behavioral difference of cancer cells and normal cells to anticancer drugs is diverse. Debilitating side effects observed with certain chemotherapeutic and prophylactic anticancer drugs have lead to identification of natural agents that may offer protective role against the damage induced in normal cells. The present study aimed to determine the protective role of the micronutrient mineral selenium (Se) and plant product genistein (Gn) in synergy and single, against the apoptosis induced in human peripheral blood lymphocytes by the cytotoxic agents cisplatin and mitomycin C. We observed reduction in apoptotic potential of cisplatin and mitomycin C in lymphocytes by pre-treatment and post-treatment with selenium (30 μM) and genistein (100 μM). The intercellular interaction of Se + Gn in synergy is found to be more efficient in protecting lymphocytes than as individual. Moreover the beneficial results were well pronounced in pre-treatment than in post-treatment condition. The protective action of these natural compounds suggests that they might be useful immunomodulators during the course of chemotherapy and prophylaxis.
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Affiliation(s)
- Elango Sonaa
- Department of Biomedical Sciences, College of Natural Sciences, Catholic University of Daegu, Hayang-eup, Gyeongsan-si, Gyeongbuk, Republic of Korea.
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29
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Bristow RG, Catton C, Vesprini D. In Reply to Nieder. Int J Radiat Oncol Biol Phys 2013; 85:581. [DOI: 10.1016/j.ijrobp.2012.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Indexed: 11/28/2022]
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Camacho-Alonso F, López-Jornet P, Tudela-Mulero MR. Synergic effect of curcumin or lycopene with irradiation upon oral squamous cell carcinoma cells. Oral Dis 2012; 19:465-72. [PMID: 23107022 DOI: 10.1111/odi.12025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 09/03/2012] [Accepted: 09/18/2012] [Indexed: 11/30/2022]
Abstract
OBJECTIVE An in vitro study was carried out to evaluate the effect of curcumin, lycopene, and irradiation upon oral squamous cell carcinoma (OSCC). MATERIALS AND METHODS Curcumin and lycopene were administrated at doses of 3, 4.25, 5.50, and 6.75 μM in PE/CA-PJ15 OSCC cultures irradiated with different doses (1, 2.5, and 5 Gy), followed by evaluation of the effects upon cell viability, apoptosis, and migration after 24, 48, and 72 h of incubation. RESULTS The application of curcumin or lycopene to the tumor cells during 24, 48, and 72 h without irradiation exerted an inhibitor effect upon cell viability and increased cell apoptosis. The maximum reduction in cell viability and the peak apoptotic effect was recorded with the 5.50 and 6.75 μM doses, for both curcumin and lycopene. Likewise, curcumin and lycopene exerted a synergic effect upon both variables on applying irradiation. Lastly, the 5.50 and 6.75 μM drug doses, together with 5 Gy of irradiation, yielded the greatest decrease in cell migration capacity with both curcumin and lycopene. CONCLUSIONS Curcumin and lycopene increase cytotoxic activity in the PE/CA-PJ15 cell line and reduce cell migration capacity, while the combination of curcumin or lycopene with irradiation exerts a synergic effect.
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Affiliation(s)
- F Camacho-Alonso
- Department of Oral Medicine, University of Murcia, Murcia, Spain
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A review on antioxidants, prooxidants and related controversy: natural and synthetic compounds, screening and analysis methodologies and future perspectives. Food Chem Toxicol 2012; 51:15-25. [PMID: 23017782 DOI: 10.1016/j.fct.2012.09.021] [Citation(s) in RCA: 858] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 09/13/2012] [Accepted: 09/14/2012] [Indexed: 12/29/2022]
Abstract
Many studies have been conducted with regard to free radicals, oxidative stress and antioxidant activity of food, giving antioxidants a prominent beneficial role, but, recently many authors have questioned their importance, whilst trying to understand the mechanisms behind oxidative stress. Many scientists defend that regardless of the quantity of ingested antioxidants, the absorption is very limited, and that in some cases prooxidants are beneficial to human health. The detection of antioxidant activity as well as specific antioxidant compounds can be carried out with a large number of different assays, all of them with advantages and disadvantages. The controversy around antioxidant in vivo benefits has become intense in the past few decades and the present review tries to shed some light on research on antioxidants (natural and synthetic) and prooxidants, showing the potential benefits and adverse effects of these opposing events, as well as their mechanisms of action and detection methodologies. It also identifies the limitations of antioxidants and provides a perspective on the likely future trends in this field.
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Pathway of cytotoxicity induced by folic acid modified selenium nanoparticles in MCF-7 cells. Appl Microbiol Biotechnol 2012; 97:1051-62. [PMID: 22945264 DOI: 10.1007/s00253-012-4359-7] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 08/07/2012] [Accepted: 08/09/2012] [Indexed: 12/14/2022]
Abstract
Selenium nanoparticles (Se NPs) have been recognized as promising materials for biomedical applications. To prepare Se NPs which contained cancer targeting methods and to clarify the cellular localization and cytotoxicity mechanisms of these Se NPs against cancer cells, folic acid protected/modified selenium nanoparticles (FA-Se NPs) were first prepared by a one-step method. Some morphologic and spectroscopic methods were obtained to prove the successfully formation of FA-Se NPs while free folate competitive inhibition assay, microscope, and several biological methods were used to determine the in vitro uptake, subcellular localization, and cytotoxicity mechanism of FA-Se NPs in MCF-7 cells. The results indicated that the 70-nm FA-Se NPs were internalized by MCF-7 cells through folate receptor-mediated endocytosis and targeted to mitochondria located regions through endocytic vesicles transporting. Then, the FA-Se NPs entered into mitochondria; triggered the mitochondria-dependent apoptosis of MCF-7 cells which involved oxidative stress, Ca(2)+ stress changes, and mitochondrial dysfunction; and finally caused the damage of mitochondria. FA-Se NPs released from broken mitochondria were transported into nucleus and further into nucleolus which then induced MCF-7 cell cycle arrest. In addition, FA-Se NPs could induce cytoskeleton disorganization and induce MCF-7 cell membrane morphology alterations. These results collectively suggested that FA-Se NPs could be served as potential therapeutic agents and organelle-targeted drug carriers in cancer therapy.
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Zeng YC, Xue M, Chi F, Xu ZG, Fan GL, Fan YC, Zheng MH, Zhong WZ, Wang SL, Zhang ZY, Chen XD, Wu LN, Jin XY, Chen W, Li Q, Zhang XY, Xiao YP, Wu R, Guo QY. Serum levels of selenium in patients with brain metastases from non-small cell lung cancer before and after radiotherapy. Cancer Radiother 2012; 16:179-82. [PMID: 22521871 DOI: 10.1016/j.canrad.2011.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 11/07/2011] [Accepted: 11/15/2011] [Indexed: 01/06/2023]
Abstract
PURPOSE This study was to evaluate the influence of radiotherapy on the selenium serum levels of non-small cell cancer patients with brain metastases. PATIENTS AND METHODS This prospective study included 95 non-small cell cancer patients with brain metastases treated by radiotherapy from December 2007 until November 2010. Plasma selenium levels were determined before and at the end of the radiotherapy. Age, body mass index (BMI), prior chemotherapy, pathological type and personal habits (smoking and alcoholism) were recorded for each patient. RESULTS The mean age was 63 years; the mean BMI was 27.6. Seventy-six patients (80%) were non-smokers. Sixty-two patients (65.3%) showed no drinking habits and 8 (8.4%) have no prior chemotherapy. Thirty-nine patients (41.1%) were adenocarcinoma, 51 (53.7%) were squamous cell carcinoma and five (5.3%) were large cell carcinoma. At the beginning of radiotherapy, the mean selenium level for all patients was 90.4 μg/l and after radiation this value dropped to 56.3 μg/l. Multivariate analysis showed statistically significant difference in the plasma selenium concentration before and after radiotherapy for age (P<0.001), BMI (P<0.001), smoking (P<0.001), alcoholism (P<0.001), prior chemotherapy (P<0.001) and pathological type (P<0.001). CONCLUSION Significant reduction in plasma levels of selenium was recorded in patients undergoing radiotherapy, suggesting attention to the nutritional status of this micronutrient and other antioxidant agents.
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Affiliation(s)
- Y C Zeng
- Department of Medical Oncology, Shengjing Hospital of China Medical University, Shenyang, China.
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Comparative evaluation of three methods based on high-performance liquid chromatography analysis combined with a 2,2′-diphenyl-1-picrylhydrazyl assay for the rapid screening of antioxidants from Pueraria lobata flowers. Anal Bioanal Chem 2012; 402:2965-76. [DOI: 10.1007/s00216-012-5722-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 12/30/2011] [Accepted: 01/05/2012] [Indexed: 10/14/2022]
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Fairweather-Tait SJ, Bao Y, Broadley MR, Collings R, Ford D, Hesketh JE, Hurst R. Selenium in human health and disease. Antioxid Redox Signal 2011; 14:1337-83. [PMID: 20812787 DOI: 10.1089/ars.2010.3275] [Citation(s) in RCA: 813] [Impact Index Per Article: 58.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This review covers current knowledge of selenium in the environment, dietary intakes, metabolism and status, functions in the body, thyroid hormone metabolism, antioxidant defense systems and oxidative metabolism, and the immune system. Selenium toxicity and links between deficiency and Keshan disease and Kashin-Beck disease are described. The relationships between selenium intake/status and various health outcomes, in particular gastrointestinal and prostate cancer, cardiovascular disease, diabetes, and male fertility, are reviewed, and recent developments in genetics of selenoproteins are outlined. The rationale behind current dietary reference intakes of selenium is explained, and examples of differences between countries and/or expert bodies are given. Throughout the review, gaps in knowledge and research requirements are identified. More research is needed to improve our understanding of selenium metabolism and requirements for optimal health. Functions of the majority of the selenoproteins await characterization, the mechanism of absorption has yet to be identified, measures of status need to be developed, and effects of genotype on metabolism require further investigation. The relationships between selenium intake/status and health, or risk of disease, are complex but require elucidation to inform clinical practice, to refine dietary recommendations, and to develop effective public health policies.
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Affiliation(s)
- Susan J Fairweather-Tait
- School of Medicine, Health Policy and Practice, University of East Anglia, Norwich, Norfolk, United Kingdom.
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Bishop FL, Rea A, Lewith H, Chan YK, Saville J, Prescott P, Elm EV, Lewith GT. Complementary medicine use by men with prostate cancer: a systematic review of prevalence studies. Prostate Cancer Prostatic Dis 2010; 14:1-13. [DOI: 10.1038/pcan.2010.38] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Selenium: a double-edged sword for defense and offence in cancer. Arch Toxicol 2010; 84:919-38. [PMID: 20871980 DOI: 10.1007/s00204-010-0595-8] [Citation(s) in RCA: 241] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Accepted: 09/09/2010] [Indexed: 10/19/2022]
Abstract
Selenium (Se) is an essential dietary component for animals including humans and is regarded as a protective agent against cancer. Although the mode of anticancer action of Se is not fully understood yet, several mechanisms, such as antioxidant protection by selenoenzymes, specific inhibition of tumor cell growth by Se metabolites, modulation of cell cycle and apoptosis, and effect on DNA repair have all been proposed. Despite the unsupported results of the last SELECT trial, the cancer-preventing activity of Se was demonstrated in majority of the epidemiological studies. Moreover, recent studies suggest that Se has a potential to be used not only in cancer prevention but also in cancer treatment where in combination with other anticancer drugs or radiation, it can increase efficacy of cancer therapy. In combating cancer cells, Se acts as pro-oxidant rather than antioxidant, inducing apoptosis through the generation of oxidative stress. Thus, the inorganic Se compound, sodium selenite (SeL), due to its prooxidant character, represents a promising alternative for cancer therapy. However, this Se compound is highly toxic compared to organic Se forms. Thus, the unregulated intake of dietary or pharmacological Se supplements mainly in the form of SeL has a potential to expose the body tissues to the toxic levels of Se with subsequent negative consequences on DNA integrity. Hence, due to a broad interest to exploit the positive effects of Se on human health and cancer therapy, studies investigating the negative effects such as toxicity and DNA damage induction resulting from high Se intake are also highly required. Here, we review a role of Se in cancer prevention and cancer therapy, as well as mechanisms underlying Se-induced toxicity and DNA injury. Since Saccharomyces cerevisiae has proven a powerful tool for addressing some important questions regarding Se biology, a part of this review is devoted to this model system.
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Abstract
As one of the most prevalent cancers, prostate cancer has enormous public health significance and prevention strategies would attenuate its economic, emotional, physical and social impact. Until recently, however, we have had only modest information about risk factors for this disease, apart from the well-established characteristics of age, family history and place of birth. The large worldwide variation in the incidence of prostate cancer and the increased risk in migrants who move from low-risk to high-risk countries provide strong support for modifiable environmental factors, particularly diet, in its etiology. Thus, dietary agents have gained considerable attention as chemopreventive agents against prostate cancer. Dietary fat, red and processed meat, vitamin E, selenium, tomatoes, cruciforms and green tea have all been linked with the development and aggressiveness of prostate cancer, through a range of molecular mechanisms. The direction of future clinical trials lies in clarifying the effects of these agents and exploring the biological mechanisms responsible for the prevention of prostate cancer. However, owing to the short time period between diagnosis and treatment, conventional dietary intervention techniques are not always realistic. Until large randomized trials confirm the benefit of chemopreventive and dietary modifications, patients can be advised to pursue a diet and lifestyle that enhances overall health.
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Muenstedt K, El-Safadi S. Nutritive Supplements - Help or Harm for Breast Cancer Patients? ACTA ACUST UNITED AC 2010; 5:383-387. [PMID: 21494403 DOI: 10.1159/000322651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
SUMMARY: Considerable numbers of patients and physicians believe that micronutrients may be useful with respect to prevention and treatment of breast cancer. However, the analysis of the literature shows that basic information on nutritional demands in cancer patients is lacking. It is unknown whether there is an increased demand of micro-nutrients in cancer patients in general and if there is an even more increased demand during the various types of treatment. As a result, there are only limited positive findings. Higher calcium intake in premenopausal women and higher intake of vitamin D seem to be able to lower breast cancer incidence. Vitamin E (800 IU per day) was found to have a modest effect on hot flashes during tamoxifen treatment. However, there are potential side effects especially when micronutrients are administered in high or very high doses. There is increasing evidence that dose-effect relationships are not linear but U-shaped. It seems that two thresholds exist for adverse effect, one at low doses for undersupply, and another at high doses for toxicity. Thus, arbitrary high-dose administration of micronutrients should be avoided. Supplementation of normal doses seems to be safe and acceptable from the medical point of view.
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Affiliation(s)
- Karsten Muenstedt
- Department for Gynecology and Obstetrics, University Hospital Giessen and Marburg GmbH, Giessen, Germany
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