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Poudel-Tandukar K, Bertone-Johnson ER, Poudel KC. Serum Selenium and Inflammation in Individuals with Human Immunodeficiency Virus Infection. AIDS Res Hum Retroviruses 2023; 39:671-676. [PMID: 37427446 DOI: 10.1089/aid.2023.0012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023] Open
Abstract
HIV infection has been linked to selenium deficiency and chronic inflammation. Both selenium deficiency and inflammation have been associated with poor health outcomes among individuals with HIV. However, the role of serum selenium levels in inflammation has not been studied among individuals with HIV. We assessed the relationship of serum selenium levels to C-reactive protein (CRP), a marker of inflammation, in individuals with HIV in Kathmandu, Nepal. In this cross-sectional study, we measured the normal serum CRP and selenium levels of 233 individuals with HIV (109 women and 124 men) using the latex agglutination turbidimetric and atomic absorption methods, respectively. We used multiple linear regression analysis in examining the association of serum selenium levels with CRP adjusting for sociodemographic and clinical parameters, including antiretroviral therapy, CD4+ T cell count, chronic diseases, and body mass index. The geometric means of CRP and selenium levels were 1.43 mg/liter and 9.65 μg/dL, respectively. Overall, serum selenium levels were inversely associated with CRP levels (β for one unit change in log selenium; β = -1.01, p = .06). Mean CRP levels significantly decreased with increasing selenium across selenium tertiles (p for trend = .019). The mean serum CRP levels were 40.8% lower in the highest selenium tertile than in the lowest. Our study suggests that high serum selenium levels may reduce serum CRP levels in individuals with HIV, although a longitudinal study is warranted to establish causality.
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Affiliation(s)
- Kalpana Poudel-Tandukar
- Elaine Marieb College of Nursing, University of Massachusetts Amherst, Amherst, Massachusetts, USA
- Institute for Global Health, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Elizabeth R Bertone-Johnson
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts, USA
- Department of Health Promotion and Policy, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Krishna C Poudel
- Institute for Global Health, University of Massachusetts Amherst, Amherst, Massachusetts, USA
- Department of Health Promotion and Policy, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts, USA
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Goligar N, Saadatmand S, Khavarinejad RA. Mycoremediation of lead and cadmium by lignocellulosic enzymes of Pleurotus eryngii. AMB Express 2023; 13:127. [PMID: 37964138 PMCID: PMC10646141 DOI: 10.1186/s13568-023-01626-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 10/09/2023] [Indexed: 11/16/2023] Open
Abstract
This study aimed to investigate the ability of Pleurotus eryngii fungus to absorb lead and cadmium from industrial wastewater. After culturing the fungus on a potato dextrose agar (PDA) medium containing 0 (control), 150 mg L-1, 250 mg L-1, and 350 mg L-1 concentrations of lead and cademium for 30 days, the mycelia were isolated from the culture medium and their extracts were used to measure protein content and the activity of antioxidant enzymes. Also, heavy metal contents were analyzed by atomic absorption spectrometry using flame photometry. Results showed that the growth of mycelia was significantly affected by different concentrations of the two heavy metals. High tolerance of heavy metal pollution in the culture media and the ability to accumulate lead and cademium confirmed that Pleurotus eryngii is a favorable option for mycoremediation. Also, molecular studies for fungal sequencing were investigated using the trench method, the sequence of the fungus was recorded in the gene bank, and finally the fungus was identified in the study.
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Affiliation(s)
- N Goligar
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - S Saadatmand
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - R A Khavarinejad
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Luan Y, Luo Y, Deng M. New advances in Nrf2-mediated analgesic drugs. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 110:154598. [PMID: 36603339 DOI: 10.1016/j.phymed.2022.154598] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 11/24/2022] [Accepted: 12/10/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Oxidative stress is an inevitable process that occurs during life activities, and it can participate in the development of inflammation. Although great progress has been made according to research examining analgesic drugs and therapies, there remains a need to develop new analgesic drugs to fill certain gaps in both the experimental and clinical space. PURPOSE This review reports the research and preclinical progress of this class of analgesics by summarizing known nuclear factor E-2-related factor-2 (Nrf2) pathway-modulating substances. STUDY DESIGN We searched and reported experiments that intervene in the Nrf2 pathway and its various upstream and downstream molecules for analgesic therapy. METHODS The medical literature database (PubMed) was searched for experimental studies examining the reduction of pain in animals through the Nrf2 pathway, the research methods were analyzed, and the pathways were classified and reported according to the pathway of these experimental interventions. RESULTS Humans have identified a variety of substances that can fight pain by regulating the expression of Nrf2 and its upstream and downstream pathways. CONCLUSION The Nrf2 pathway exerts anti-inflammatory activity by regulating oxidative stress, thereby playing a role in the fight against pain.
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Affiliation(s)
- Yifan Luan
- Department of Biochemistry and Molecular Biology & Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, Hunan 410013, China; Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China; Hunan Key Laboratory of Animal Models for Human Diseases, Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan 410013, China
| | - Yaping Luo
- Department of Biochemistry and Molecular Biology & Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, Hunan 410013, China; Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China; Hunan Key Laboratory of Animal Models for Human Diseases, Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan 410013, China
| | - Meichun Deng
- Department of Biochemistry and Molecular Biology & Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, Hunan 410013, China; Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China; Hunan Key Laboratory of Animal Models for Human Diseases, Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan 410013, China.
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Zhang X, Li Y, Dong X, Wang H, Chen B, Li R, Qin Y, Ivasishin O. 3D-printed bioactive ceramic scaffolds with MoSe 2 nanocrystals as photothermal agents for bone tumor therapy. RSC Adv 2022; 12:30588-30597. [PMID: 36337979 PMCID: PMC9597292 DOI: 10.1039/d2ra02942a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022] Open
Abstract
Large scale bone defects after bone tumor resection are difficult to reconstruct and repair, and there is also the possibility of tumor recurrence. Photothermal therapy (PTT) has the function of inhibiting tumor cells, but the risk of damage to normal cells is the main factor limiting the clinical application of PTT drugs, and most of them have a weak effect on regeneration for bone defects. Therefore, specific biomaterials that simultaneously eliminate bone tumors, have low toxicity, and promote osteogenesis have attracted considerable attention. In this paper, we successfully fabricated bioactive bredigite scaffolds (MS-BRT) functionalized with MoSe2 nanocrystals using a combination of 3D printing and hydrothermal methods. MS-BRT scaffolds not only have low toxicity and good osteogenic ability, but also have the ability to kill bone tumors by photothermal therapy. Using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and an infrared thermal camera, MoSe2 nanocrystals were demonstrated to be successfully modified on the surface of BRT scaffolds. The MoSe2 nanocrystals endow the scaffolds with excellent photothermal properties, which can be well controlled by varying the hydrothermal reaction time and laser power density. Furthermore, the MS-BRT scaffolds can effectively kill MG-63 and HeLa cells and promote the adhesion and proliferation of osteoblasts. The performance of osteoblastic activity was assessed by alkaline phosphatase staining and alizarin red S staining, which results suggest that both MS-BRT and BRT have favorable osteogenic properties. This study combines the photothermal properties of semiconducting MoSe2 nanocrystals with the osteogenic activity of bioceramic scaffolds for the first time, providing a broader perspective for the development of novel biomaterials with dual functions of bone tumor treatment and bone regeneration.
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Affiliation(s)
- Xin Zhang
- Key Laboratory of Automobile Materials of MOE, Department of Materials Science and Engineering, International Center of Future Science, Jilin University Changchun 130012 China
| | - Yingzhi Li
- Department of Orthopedics, The Second Hospital of Jilin University, Jilin University Changchun 130041 PR China
| | - Xiaoming Dong
- Department of Orthopedics, The Second Hospital of Jilin University, Jilin University Changchun 130041 PR China
| | - Hao Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Jilin University Changchun 130041 PR China
| | - Bo Chen
- Department of Orthopedics, The Second Hospital of Jilin University, Jilin University Changchun 130041 PR China
| | - Ruiyan Li
- Department of Orthopedics, The Second Hospital of Jilin University, Jilin University Changchun 130041 PR China
| | - Yanguo Qin
- Department of Orthopedics, The Second Hospital of Jilin University, Jilin University Changchun 130041 PR China
| | - Orest Ivasishin
- Key Laboratory of Automobile Materials of MOE, Department of Materials Science and Engineering, International Center of Future Science, Jilin University Changchun 130012 China
- G. V. Kurdyumov Institute for Metal Physics Kyiv Ukraine
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Spyridopoulou K, Aindelis G, Pappa A, Chlichlia K. Anticancer Activity of Biogenic Selenium Nanoparticles: Apoptotic and Immunogenic Cell Death Markers in Colon Cancer Cells. Cancers (Basel) 2021; 13:5335. [PMID: 34771499 PMCID: PMC8582357 DOI: 10.3390/cancers13215335] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/14/2021] [Accepted: 10/21/2021] [Indexed: 12/18/2022] Open
Abstract
Colorectal cancer is a health problem with high mortality rates and prevalence. Thus, innovative treatment approaches need to be developed. Biogenic nanoparticles are nanomaterials that can be synthesised in biological systems and, compared to chemically synthesised nanoparticles, have better bioavailability while being more cost-effective, eco-friendlier, and less toxic. In our previous studies, the probiotic strain Lactobacillus casei ATCC 393 was used to synthesise selenium nanoparticles (SeNps), which were shown to inhibit colon cancer cell growth in vitro and in vivo. Herein, we have further investigated SeNps' pro-apoptotic activity and their ability to induce immunogenic cell death (ICD) in colon cancer cells. The SeNps' effect on Caco-2 cells growth was examined along with their potential to induce caspase activation. Moreover, the expression of typical pro-apoptotic and ICD markers were examined in SeNps-treated HT29 and CT26 cells by flow cytometry, Western blot, ELISA and fluorescence microscopy. Elevated caspase-3 activation and surface phosphatyldoserine, that subsided upon co-incubation with a pan-caspase inhibitor, were detected in SeNps-treated cells. Furthermore, nanoparticles induced modulation of the expression of various apoptosis-related proteins. We also report the detection of biomarkers involved in ICD, namely the translocation of calreticulin and ERp57, the release of HMGB1 and ATP, and the secretion of pro-inflammatory cytokines from SeNps-treated cells. Moreover, RAW246.7 macrophages exhibited a higher rate of phagocytosis against treated CT26 when compared to control cells. Taken together, our findings indicate that treatment with SeNps might be an efficient strategy to destroy tumour cells by inducing apoptotic cell death and triggering immune responses.
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Affiliation(s)
| | | | | | - Katerina Chlichlia
- Department of Molecular Biology and Genetics, Democritus University of Thrace, University Campus Dragana, 68100 Alexandroupolis, Greece; (K.S.); (G.A.); (A.P.)
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Mansouri A, Hamidatou Alghem L, Mokhtari OEK, Benamar MEA. Determination of scalp hair selenium concentrations in Algerian psoriatic individuals using k
0
-standardization based on neutron activation analysis method. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2020-0090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Abstract
Psoriasis is a dermatological disease that affects 2–3% of the Algerian population. Selenium has a positive impact on psoriasis. Selenium plays an important role in protecting free radical damage as a component of the glutathione peroxidase enzyme. The objective of this investigation was to assess the status of selenium in the hair of Algerian patients suffering from psoriasis. Fifty-eight scalp hair samples were collected from Algerian patients with psoriasis, classified by gender and four age groups: 36 females and 22 males, aged between 9 and 79 years. Thirty healthy subjects aged 9–74 years were also surveyed for control purposes. Selenium content was measured for all scalp hair samples using the k
0-standardization of neutron activation analysis. The average selenium concentration for controls and patients were 0.39 ± 0.18 and 0.28 ± 0.13 μg/g respectively. Selenium concentration for female and male controls and patients, were 0.35 ± 0.17, 0.47 ± 0.19, 0.28 ± 0.14, and 0.28 ± 0.11 μg/g, respectively. There is a significant difference (p < 0.05) between selenium level in patients and in controls. Selenium concentrations in psoriatics’ scalp hair can be affected by both gender and age. Measured selenium contents have been approved by the quality assurance and quality control procedure (QA/QC).
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Affiliation(s)
- Ammar Mansouri
- Nuclear Research Centre of Algiers, 2 Frantz Fanon Street , Algiers 16000 , Algeria
| | - Lylia Hamidatou Alghem
- Neutron Activation Analysis Laboratory, Nuclear Research Centre of Birine, P.O. Box 180 Ain Oussera , Djelfa 17200 , Algeria
| | | | - Mohammed El-Amine Benamar
- University Centre Amine El-Okkal El-Hadj Moussa Eg Akhamouk, P.O. Box 10034 Sersouf , Tamanghasset 11000 , Algeria
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Tian J, Wei X, Zhang W, Xu A. Effects of Selenium Nanoparticles Combined With Radiotherapy on Lung Cancer Cells. Front Bioeng Biotechnol 2020; 8:598997. [PMID: 33304892 PMCID: PMC7701302 DOI: 10.3389/fbioe.2020.598997] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 10/15/2020] [Indexed: 12/25/2022] Open
Abstract
Objective To investigate the effects of selenium nanoparticles (nano-Se) combined with radiotherapy on the proliferation, migration, invasion, and apoptosis of non-small cell lung cancer (NSCLC) A549 and NCI-H23 cells. Methods Nano-Se was synthesized and characterized by transmission electron microscope (TEM), X-ray diffractometer, and Ultraviolet-visible (UV)-Vis Spectroscopy, separately. The uptake of nano-Se by lung cancer cells was detected by flow cytometry. Cell counting kit-8 (CCK-8) method was used to detect the antiproliferative activity of nano-Se combined with radiotherapy. Wound healing tests and transwell assay were used to detect the migration and invasion ability of the cells. Annexin V-fluorescein isothiocyanate (FITC)/Propidium iodide (PI) staining by flow cytometry was used to detect apoptosis. The expression of Cyclin D1 (CCND1), c-Myc, matrix metalloproteinase 2 (MMP2), MMP9, cleaved Caspase-3, and cleaved Caspase-9 were detected by Western blot. Results The average diameter of nano-Se was 24.39 nm and the wavelength of nano-Se increased with the increase of radiation dose under UV-Vis Spectroscopy. The uptake of nano-Se in lung cancer cells was increased with the increase of nano-Se concentration. The nano-Se combined with radiotherapy decreased the proliferation activity of NSCLC cell lines A549 and NCI-H23 in a dose-dependent manner (all P < 0.05). Compared with the Control group, nano-Se combined with radiotherapy could significantly inhibit the migration and invasion of lung cancer cells (all P < 0.05), and the effects of the combination of nano-Se and radiotherapy was better than that of a single application (all P < 0.05). Furthermore, nano-Se combined with radiotherapy could induce apoptosis of lung cancer cells (P < 0.05) and nano-Se combined with radiotherapy could significantly inhibit the expression of proliferation-related proteins CCND1, c-Myc, invasion and migration-related proteins MMP2 and MMP9, but conversely promoted the expression of apoptosis-related proteins cleaved caspase-3 and cleaved caspase-9. Conclusion: This study found that nano-Se combined with radiotherapy plays an anti-cancer role in lung cancer cells by inhibiting cell proliferation, migration, and invasion, as well as inducing apoptosis, suggesting that nano-Se may be used as a radiosensitizer in the clinical treatment of lung cancer, but further research is still needed.
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Affiliation(s)
- Jingxia Tian
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Shangqiu, Shangqiu, China
| | - Xiaoying Wei
- Department of Nephropathy of Rheumatology, First People's Hospital of Shangqiu, Shangqiu, China
| | - Weihua Zhang
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Shangqiu, Shangqiu, China
| | - Aiguo Xu
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Supplemental dietary selenium enhances immune responses conferred by a vaccine against low pathogenicity avian influenza virus. Vet Immunol Immunopathol 2020; 227:110089. [PMID: 32615272 DOI: 10.1016/j.vetimm.2020.110089] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 06/20/2020] [Accepted: 06/23/2020] [Indexed: 12/29/2022]
Abstract
Selenium is a trace mineral that has antioxidant activities and can influence the immune system. However, antiviral effects of selenium have not been well studies in chickens. Chickens were therefore fed diets supplemented with two levels of two different sources of selenium (organic: selenium enriched yeast; SEY or inorganic: sodium selenite; SS). Chickens in the control groups did not receive supplemental dietary selenium. At 14 and 21 days of age, chickens were vaccinated with an inactivated low pathogenicity avian influenza virus (AIV, subtype H9N2) vaccine and blood samples were collected to determine the level of antibodies using hemagglutination inhibition (HI) and ELISA. At 30 days of age, chickens were also challenged with the same virus and swab samples were collected to assess the amount of virus shedding. Antibody levels, as measured by HI, increased significantly in the chickens that received higher levels of SEY at 16 days post vaccination. ELISA titers for IgM and IgY were higher in selenium supplemented chickens. Comparing to challenged control, virus shedding was lower in organic as well as inorganic selenium treated groups. Therefore, it may be concluded that supplemental dietary selenium could enhance vaccine conferred immunity thereby impacting protection against viral challenge in chickens.
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Diphenyl diselenide blunts swimming training on mitochondrial liver redox adaptation mechanisms of aged animals. SPORT SCIENCES FOR HEALTH 2020. [DOI: 10.1007/s11332-019-00603-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2022]
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Yin J, Wu X, Li S, Li C, Guo Z. Impact of environmental factors on gastric cancer: A review of the scientific evidence, human prevention and adaptation. J Environ Sci (China) 2020; 89:65-79. [PMID: 31892402 DOI: 10.1016/j.jes.2019.09.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 09/17/2019] [Accepted: 09/17/2019] [Indexed: 06/10/2023]
Abstract
Globally, gastric cancer (GC) ranks fifth in prevalence and third in fatalities, and shows a distinct geographical distribution in morbidity and mortality. Such a spatial pattern indicates that environmental factors could be an important contributor to GC. We reviewed a total of 135 relevant peer-reviewed articles and other literature published 1936-2019 to investigate the scientific evidence concerning the effects of environmental factors on GC worldwide. Environmental factors affect GC from the aspects of water, soil, air, radiation, and geology. Risk factors identified include water type, water pollution, water hardness, soil type, soil pollution, soil element content, climate change, air pollution, radiation, altitude, latitude, topography, and lithology; and most of them have an adverse impact on GC. Furthermore, we found that their effects followed five common rules: (1) the leading environmental factors that affect GC incidence and mortality vary by region, (2) the same environmental factors may have different effects on GC in different regions, (3) some different environmental factors have similar effects on GC in essence, (4) different environmental factors often interact to have combined or synergistic effects on GC, and (5) environmental factors can affect human factors to have an impact on GC. Environmental factors have a great impact on GC. Human beings may prevent GC by controlling carcinogenic factors, screening high-risk populations and providing symptomatic and rehabilitative treatments. Furthermore, adaptation measures are recommended to reduce GC risk on private and public levels. Future studies should transcend existing empirical studies to develop causal relationship models and focus on vulnerable population analysis.
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Affiliation(s)
- Jie Yin
- State Key Laboratory of Remote Sensing Science, College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China
| | - Xiaoxu Wu
- State Key Laboratory of Remote Sensing Science, College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China.
| | - Suping Li
- The Second People's Hospital of Lanzhou City, Lanzhou 730046, China
| | - Chenlu Li
- State Key Laboratory of Remote Sensing Science, College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China
| | - Zhiyi Guo
- State Key Laboratory of Remote Sensing Science, College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China
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Hackler J, Wisniewska M, Greifenstein-Wiehe L, Minich WB, Cremer M, Bührer C, Schomburg L. Copper and selenium status as biomarkers of neonatal infections. J Trace Elem Med Biol 2020; 58:126437. [PMID: 31778962 DOI: 10.1016/j.jtemb.2019.126437] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 10/16/2019] [Accepted: 11/12/2019] [Indexed: 12/19/2022]
Abstract
Neonatal infections are a major risk factor for neonatal mortality. A reliable diagnosis of early-onset sepsis (EOS) is hampered by the variable clinical presentations of the children. We hypothesized that changes in the Se or Cu status, or the biomarkers selenoprotein P (SELENOP) or ceruloplasmin (CP) alone or in combination may be informative of EOS. We generated a new human CP-specific non-competitive immunoassay (ELISA) suitable of analysing small sample volumes and validated the method with a commercial CP source. Using this novel CP assay, we analysed a case-control study of EOS (n = 19 control newborns, n = 18 suspected cases). Concentrations of Se, Cu, SELENOP, CP, interleukin-6 (IL-6), and C-reactive protein (CRP) along with the Cu/Se and CP/SELENOP ratios were evaluated by correlation analyses as biomarkers for EOS. Diagnostic value was estimated by receiver operating characteristic (ROC) curve analyses. The new CP-ELISA displayed a wide working range (0.10-6.78 mg CP/L) and low sample requirement (2 μL of serum, EDTA-, heparin- or citrate-plasma). Plasma CP correlated positively with Cu concentrations in the set of all samples (Pearson r = 0.8355, p < 0.0001). Three of the infected neonates displayed particularly high ratios of Cu/Se and CP/SELENOP, i.e., 3.8- to 6.9-fold higher than controls. Both the Cu/Se and the CP/SELENOP ratios correlated poorly with the early infection marker IL-6, but strongly and positively with the acute-phase protein CRP (Cu/Se-CRP: Spearman ϱ = 0.583, p = 0.011; CP/SELENOP-CRP: ϱ = 0.571, p = 0.013). The ROC curve analyses indicate that a combination of biomarkers for the Se and Cu status do not improve the early identification of EOS considerably. This study established a robust, highly precise, partly validated and scalable novel CP sandwich ELISA suitable for basic and clinical research, requiring minute amounts of sample. The ratio of circulating CP/SELENOP constitutes a promising new composite biomarker for detection of EOS, at least in a subset of severely diseased children.
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Affiliation(s)
- Julian Hackler
- Institute for Experimental Endocrinology, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Monika Wisniewska
- Institute for Experimental Endocrinology, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Lennart Greifenstein-Wiehe
- Institute for Experimental Endocrinology, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Waldemar B Minich
- Institute for Experimental Endocrinology, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Malte Cremer
- Department of Neonatology, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Christoph Bührer
- Department of Neonatology, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Lutz Schomburg
- Institute for Experimental Endocrinology, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
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Djalalinia S, Khosravi M, Hasani M, Saeedi Moghaddam S, Kazemzadeh Atoofi M, Mahdavi-Gorabi A, Noroozi M, Qorbani M, Asayesh H, Soleimani A. Effects of Selenium Supplementation on Cardiometabolic Risk Factors, Inflammatory, and Antioxidant Markers: A Systematic Review and Meta-analysis Protocol. Int J Prev Med 2019; 10:213. [PMID: 31929860 PMCID: PMC6941376 DOI: 10.4103/ijpvm.ijpvm_509_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 11/19/2018] [Indexed: 11/04/2022] Open
Abstract
Background Selenium (Se) is considered as an antioxidant trace element involved in key activities in human metabolism. Recent investigations indicate that Se plays a pivotal role in human health. Se supplementation considered as an intervention is both cost-effective and simple-to-use that may play an important role in the prevention of cardiometabolic risk factors (CRFs), inflammatory, and antioxidant markers. Methods This paper is a protocol study on systematic review of probable effects of Se supplementation on CRFs, inflammatory, and antioxidant markers. The aim was to achieve three international databases available related to the current publications including, PubMed, ISI/WOS, and Scopus. We attempted to search for randomized clinical trials (RCT) and cross-over trials pertaining to human subjects without any restriction on language and time. In addition, there was no limitation on the age of participants. For RCTs were included all studies in different target groups comprising diabetic patients, patients with polycystic ovarian syndrome, obese subjects, or even healthy controls. To investigate the effect of Se, we included all studies which Se is used either as single therapy or as combination therapy. All studies associated with articles and meta-analyses would be evaluated to review their references. Conclusions The current study contained numerous outcomes. The result of this study can be led to make reliable scientific evidence on the probable effects of Se supplementation on CRFs, inflammatory factors, and antioxidant factors. In addition to these findings, other technical documents developed for a systematic review can be used for future studies.
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Affiliation(s)
- Shirin Djalalinia
- Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, Iran.,Noncommunicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahnoosh Khosravi
- Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, Iran
| | - Motahareh Hasani
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Sahar Saeedi Moghaddam
- Noncommunicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Department of Biostatistics, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehrdad Kazemzadeh Atoofi
- Spiritual Health Research Center, School of Behavioral Sciences and Mental Health, Tehran Psychiatric Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Armita Mahdavi-Gorabi
- Department of Basic and Clinical Research, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Noroozi
- Social Determinants of Health Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mostafa Qorbani
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.,Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Asayesh
- Department of Medical Emergencies, Qom University of Medical Sciences, Qom, Iran
| | - Ali Soleimani
- Department of Public Health, Maragheh University of medical Sciences, Maragheh, Iran
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13
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Producing specialist poultry products to meet human nutrition requirements: Selenium enriched eggs. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s0043933907001742] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Yarom N, Hovan A, Bossi P, Ariyawardana A, Jensen SB, Gobbo M, Saca-Hazboun H, Kandwal A, Majorana A, Ottaviani G, Pentenero M, Nasr NM, Rouleau T, Lucas AS, Treister NS, Zur E, Ranna V, Vaddi A, Cheng KKF, Barasch A, Lalla RV, Elad S. Systematic review of natural and miscellaneous agents for the management of oral mucositis in cancer patients and clinical practice guidelines-part 1: vitamins, minerals, and nutritional supplements. Support Care Cancer 2019; 27:3997-4010. [PMID: 31286229 DOI: 10.1007/s00520-019-04887-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 05/22/2019] [Indexed: 12/13/2022]
Abstract
PURPOSE To update the clinical practice guidelines for the use of natural and miscellaneous agents for the prevention and/or treatment of oral mucositis (OM). METHODS A systematic review was conducted by the Mucositis Study Group of the Multinational Association of Supportive Care in Cancer / International Society of Oral Oncology (MASCC/ISOO). The body of evidence for each intervention, in each cancer treatment setting, was assigned an evidence level. The findings were added to the database used to develop the 2014 MASCC/ISOO clinical practice guidelines. Based on the evidence level, the following guidelines were determined: Recommendation, Suggestion, and No Guideline Possible. RESULTS A total of 78 papers were identified within the scope of this section, out of which 29 were included in this part, and were analyzed with 27 previously reviewed studies. A new Suggestion was made for oral glutamine for the prevention of OM in head and neck (H&N) cancer patients receiving radiotherapy with concomitant chemotherapy. The previous Recommendation against the use of parenteral glutamine for the prevention of OM in hematopoietic stem cell transplantation (HSCT) patients was re-established. A previous Suggestion for zinc to prevent OM in H&N cancer patients treated with radiotherapy or chemo-radiotherapy was reversed to No Guideline Possible. No guideline was possible for other interventions. CONCLUSIONS Of the vitamins, minerals, and nutritional supplements studied for the management of OM, the evidence supports a Recommendation against parenteral glutamine in HSCT patients and a Suggestion in favor of oral glutamine in H&N cancer patients for the management of OM.
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Affiliation(s)
- Noam Yarom
- Oral Medicine Unit, Sheba Medical Center, Tel Hashomer, Israel. .,School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Allan Hovan
- British Columbia Cancer - Vancouver Centre, Vancouver, Canada
| | - Paolo Bossi
- Medical Oncology, ASST-Spedali Civili, University of Brescia, Brescia, Italy
| | - Anura Ariyawardana
- College of Medicine and Dentistry, James Cook University, Cairns, Queensland, Australia.,Metro South Oral Health, Queensland Health, Brisbane, Australia
| | - Siri Beier Jensen
- Department of Dentistry and Oral Health, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Margherita Gobbo
- Division of Oral Medicine and Pathology, Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | | | - Abhishek Kandwal
- Cancer Research Institute, Himalayan Institute of Medical Sciences, Swami Rama Himayalan University, Dehradun, Uttarakhand, India
| | - Alessandra Majorana
- Department of Medical and Surgical Specialties, Radiological Science and Public Health, Dental School University of Brescia, Brescia, Italy
| | - Giulia Ottaviani
- Division of Oral Medicine and Pathology, Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Monica Pentenero
- Department of Oncology, Oral Medicine and Oral Oncology Unit, University of Turin, Turin, Italy
| | - Narmin Mohammed Nasr
- Special Needs Dentistry, Dental Services, Directorate General of Health Services-Muscat Governorate, Ministry of Health, Muscat, Oman
| | - Tanya Rouleau
- Dental Oncology Program, Health Sciences North, North East Cancer Center, Sudbury, ON, Canada
| | - Anna Skripnik Lucas
- Medical Oncology Service, Department of Medicine, NYU Langone Perlmutter Cancer Center, New York, NY, USA
| | - Nathaniel Simon Treister
- Division of Oral Medicine and Dentistry, Brigham and Women's Hospital, Boston, MA, USA.,Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
| | - Eyal Zur
- Compounding Solutions, Tel-Mond, Israel
| | - Vinisha Ranna
- Department of Oral and Maxillofacial Surgery, The Mount Sinai Hospital, New York, NY, 10029, USA
| | - Anusha Vaddi
- Oral Medicine, Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, NY, USA
| | - Karis Kin Fong Cheng
- Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Andrei Barasch
- Division of Oncology, Weill Cornell Medical College, New York, NY, USA
| | - Rajesh V Lalla
- Section of Oral Medicine, University of Connecticut School of Dental Medicine, Farmington, CT, USA
| | - Sharon Elad
- Oral Medicine, Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, NY, USA
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15
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Zhang L, Hu B, Deng K, Gao X, Sun G, Zhang Z, Li P, Wang W, Li H, Zhang Z, Fu Z, Yang J, Gao S, Li L, Yu F, Li Y, Ling H, Chu C. NRT1.1B improves selenium concentrations in rice grains by facilitating selenomethinone translocation. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:1058-1068. [PMID: 30466149 PMCID: PMC6523590 DOI: 10.1111/pbi.13037] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 10/30/2018] [Accepted: 11/08/2018] [Indexed: 05/19/2023]
Abstract
Selenium (Se) is an essential trace element for humans and other animals, yet approximately one billion people worldwide suffer from Se deficiency. Rice is a staple food for over half of the world's population that is a major dietary source of Se. In paddy soils, rice roots mainly take up selenite. Se speciation analysis indicated that most of the selenite absorbed by rice is predominantly transformed into selenomethinone (SeMet) and retained in roots. However, the mechanism by which SeMet is transported in plants remains largely unknown. In this study, SeMet uptake was found to be an energy-dependent symport process involving H+ transport, with neutral amino acids strongly inhibiting SeMet uptake. We further revealed that NRT1.1B, a member of rice peptide transporter (PTR) family which plays an important role in nitrate uptake and transport in rice, displays SeMet transport activity in yeast and Xenopus oocyte. The uptake rate of SeMet in the roots and its accumulation rate in the shoots of nrt1.1b mutant were significantly repressed. Conversely, the overexpression of NRT1.1B in rice significantly promoted SeMet translocation from roots to shoots, resulting in increased Se concentrations in shoots and rice grains. With vascular-specific expression of NRT1.1B, the grain Se concentration was 1.83-fold higher than that of wild type. These results strongly demonstrate that NRT1.1B holds great potential for the improvement of Se concentrations in grains by facilitating SeMet translocation, and the findings provide novel insight into breeding of Se-enriched rice varieties.
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Affiliation(s)
- Lianhe Zhang
- Luoyang Key Laboratory of Plant Nutrition and Environmental EcologyAgricultural CollegeHenan University of Science and TechnologyLuoyangChina
| | - Bin Hu
- State Key Laboratory of Plant GenomicsInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Kun Deng
- Luoyang Key Laboratory of Plant Nutrition and Environmental EcologyAgricultural CollegeHenan University of Science and TechnologyLuoyangChina
| | - Xiaokai Gao
- Luoyang Key Laboratory of Plant Nutrition and Environmental EcologyAgricultural CollegeHenan University of Science and TechnologyLuoyangChina
| | - Guoxin Sun
- State Key Lab of Urban and Regional EcologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijingChina
| | - Zhengli Zhang
- State Key Laboratory of Plant GenomicsInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Peng Li
- Luoyang Key Laboratory of Plant Nutrition and Environmental EcologyAgricultural CollegeHenan University of Science and TechnologyLuoyangChina
| | - Wei Wang
- State Key Laboratory of Plant GenomicsInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Hua Li
- State Key Laboratory of Plant GenomicsInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Zhihua Zhang
- State Key Laboratory of Plant GenomicsInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Zihao Fu
- Luoyang Key Laboratory of Plant Nutrition and Environmental EcologyAgricultural CollegeHenan University of Science and TechnologyLuoyangChina
| | - Jinyong Yang
- Luoyang Key Laboratory of Plant Nutrition and Environmental EcologyAgricultural CollegeHenan University of Science and TechnologyLuoyangChina
| | - Shaopei Gao
- State Key Laboratory of Plant GenomicsInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Legong Li
- College of Life ScienceCapital Normal UniversityBeijingChina
| | - Feiyan Yu
- Luoyang Key Laboratory of Plant Nutrition and Environmental EcologyAgricultural CollegeHenan University of Science and TechnologyLuoyangChina
| | - Youjun Li
- Luoyang Key Laboratory of Plant Nutrition and Environmental EcologyAgricultural CollegeHenan University of Science and TechnologyLuoyangChina
| | - Hongqing Ling
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Chengcai Chu
- State Key Laboratory of Plant GenomicsInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
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16
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Abstract
Esophageal cancer (EC) is an extremely aggressive cancer with one of the highest mortality rates. The cancer is generally only diagnosed at the later stages and has a poor 5-year survival rate due to the limited treatment options. China and South Africa are two countries with a very high prevalence rate of EC. EC rates in South Africa have been on the increase, and esophageal squamous cell carcinoma is the predominant subtype and a primary cause of cancer-related deaths in the black and male mixed ancestry populations in South Africa. The incidence of EC is highest in the Eastern Cape Province, especially in the rural areas such as the Transkei, where the consumption of foods contaminated with Fusarium verticillioides is thought to play a major contributing role to the incidence of EC. China is responsible for almost half of all new cases of EC globally. In China, the prevalence of EC varies greatly. However, the two main areas of high prevalence are the southern Taihang Mountain area (Linxian, Henan Province) and the north Jiangsu area. In both countries, environmental toxins play a major role in increasing the chance that an individual will develop EC. These associative factors include tobacco use, alcohol consumption, nutritional deficiencies and exposure to environmental toxins. However, genetic polymorphisms also play a role in predisposing individuals to EC. These include single-nucleotide polymorphisms that can be found in both protein-coding genes and in non-coding sequences such as miRNAs. The aim of this review is to summarize the contribution of genetic polymorphisms to EC in South Africa and to compare and contrast this to the genetic polymorphisms observed in EC in the most comprehensively studied population group, the Chinese.
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Affiliation(s)
- Mohammed Alaouna
- Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Rodney Hull
- Research, Innovation & Engagements Portfolio, Mangosuthu University of Technology, Durban, South Africa,
| | - Clement Penny
- Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Zodwa Dlamini
- Research, Innovation & Engagements Portfolio, Mangosuthu University of Technology, Durban, South Africa,
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17
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Sepehri Z, Arefi D, Mirzaei N, Afshari A, Kiani Z, Sargazi A, Panahi Mishkar A, Oskoee HO, Masjedi MR, Sargazi A, Ghavami S. Changes in serum level of trace elements in pulmonary tuberculosis patients during anti-tuberculosis treatment. J Trace Elem Med Biol 2018; 50:161-166. [PMID: 30262275 DOI: 10.1016/j.jtemb.2018.06.024] [Citation(s) in RCA: 6] [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] [Received: 10/03/2017] [Revised: 06/17/2018] [Accepted: 06/26/2018] [Indexed: 11/30/2022]
Abstract
INTRODUCTIONS Tuberculosis is spreading throughout the globe, while it is a crucial cause of death in developing countries. In this study, trace elements concentrations and their alterations were determined in TB patients during anti-tuberculosis treatment period. MATERIALS AND METHODS We have collected blood samples from a total of 180 TB patients with pulmonary Tuberculosis, and 180 healthy controls in Sistan, Iran. The serum iron, copper, lead, calcium, arsenic and selenium concentrations were detected at the beginning of anti-TB chemotherapy, at the end of 2nd, 4th and 6th month after treatment initiation. Data were then analyzed using SPSS version 20. RESULTS AND DISCUSSIONS Although Ca, Pb, and As levels did not change during the treatment period, serum concentrations of Fe, Zn, Cu, and Se were diminished in TB patients significantly during treatment in comparison with controls (P < 0.001).We also found that there was a significant difference in the Cu/Se and Cu/Zn ratios in tuberculosis patients in comparison with healthy individuals (P < 0.001). CONCLUSIONS Trace elements serum concentrations are affected by TB infection and anti-TB therapy. Their serum levels were strongly perturbed during infection as well as anti-TB treatment.
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Affiliation(s)
- Zahra Sepehri
- Department of Internal Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | - Donya Arefi
- Zabol University of Medical Sciences, Zabol, Iran
| | - Nima Mirzaei
- Zabol University of Medical Sciences, Zabol, Iran; Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 3P4, Canada
| | - Asma Afshari
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zohre Kiani
- Students Research Committee, Zabol University of Medical Sciences, Zabol, Iran; Students Research Committee, Kerman University of Medical Sciences, Kerman, Iran
| | - Alireza Sargazi
- Students Research Committee, Zabol University of Medical Sciences, Zabol, Iran
| | | | - Hamid Owaysee Oskoee
- Department of Infectious Disease, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Masjedi
- Telemedicine Research Center, Shahid Beheshty University of Medical Sciences, Tehran, Iran
| | - Aliyeh Sargazi
- Students Research Committee, Zabol University of Medical Sciences, Zabol, Iran.
| | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 3P4, Canada
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18
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Tonelli M, Wiebe N, Bello A, Field CJ, Gill JS, Hemmelgarn BR, Holmes DT, Jindal K, Klarenbach SW, Manns BJ, Thadhani R, Kinniburgh D. Concentrations of Trace Elements and Clinical Outcomes in Hemodialysis Patients: A Prospective Cohort Study. Clin J Am Soc Nephrol 2018; 13:907-915. [PMID: 29599300 PMCID: PMC5989679 DOI: 10.2215/cjn.11451017] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 03/05/2018] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Deficiency of essential trace elements and excess of potentially toxic trace elements are common in patients on hemodialysis. Whether these abnormalities are associated with poor outcomes is unknown but worth investigating, because they are potentially treatable. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We did a prospective longitudinal study of 1278 patients on incident hemodialysis, assessing blood concentrations of 25 trace elements at baseline. We used adjusted logistic regression to evaluate the association between trace element status and four outcomes (death, cardiovascular events, systemic infection, and hospitalization). A priori hypotheses concerned (1) deficiency of zinc, selenium, and manganese and (2) excess of lead, arsenic, and mercury. Concentrations of the other 19 elements were tested in hypothesis-generating analyses. RESULTS Over 2 years of follow-up, 260 (20%) patients died, 285 (24%) experienced a cardiovascular event, 117 (10%) were hospitalized for systemic infection, and 928 (77%) were hospitalized for any cause. Lower concentrations of zinc or manganese and higher concentrations of lead, arsenic, or mercury were not independently associated with higher risk of clinical outcomes. Lower concentrations of selenium were strongly and independently associated with death (odds ratio, 0.86 per decile; 99.2% confidence interval, 0.80 to 0.93) and all-cause hospitalization (odds ratio, 0.92 per decile; 99.2% confidence interval, 0.86 to 0.98). In exploratory analyses, higher copper concentrations were significantly associated with higher risk of death (odds ratio, 1.07 per decile; 99.2% confidence interval, 1.00 to 1.15), and cadmium levels in the highest decile were associated with higher risk of death (odds ratio, 1.89; 99.2% confidence interval, 1.06 to 3.38). CONCLUSIONS Lower levels of zinc or manganese and higher concentrations of lead, arsenic, or mercury were not associated with higher risk of clinical outcomes, but lower concentrations of selenium were strongly and independently associated with the risks of death and hospitalization.
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Affiliation(s)
| | | | | | - Catherine J. Field
- Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, Canada
| | | | | | - Daniel T. Holmes
- Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada; and
| | | | | | | | - Ravi Thadhani
- Division of Nephrology, Massachusetts General Hospital, Boston, Massachusetts
| | - David Kinniburgh
- Physiology and Pharmacology, University of Calgary, Calgary, Canada
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19
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A bifunctional scaffold with CuFeSe 2 nanocrystals for tumor therapy and bone reconstruction. Biomaterials 2018; 160:92-106. [PMID: 29407343 DOI: 10.1016/j.biomaterials.2017.11.020] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 11/17/2017] [Indexed: 12/17/2022]
Abstract
Bone tumor is one of major challenging issues clinically. After surgical intervention, a few bone tumor cells still remain around bone defects and then proliferate over days. Fabrication of specific biomaterials with dual functions of bone tumor therapy and bone regeneration is of great significance. In order to achieve this aim, we managed to prepare bioactive glass (BG) scaffolds functionalized by the CuFeSe2 nanocrystals (BG-CFS) by combining 3D printing technique with solvothermal method. During the solvothermal reaction process, CuFeSe2 nanocrystals could in situ grow on the strut surface of BG scaffolds and thus endow BG scaffolds excellent photothermal performance. The photothermal performance of BG-CFS scaffolds could be well regulated through altering the content of CuFeSe2 nanocrystals and laser power density when exposed to the near infrared laser (808 nm). The BG-CFS scaffolds could not only effectively ablate the bone tumor cells (Saos-2 cells) in vitro, but also significantly inhibit bone tumor growth in vivo. Moreover, BG-CFS scaffolds could stimulate osteogenic gene expressions of rabbit bone marrow stromal cells (rBMSCs) and finally facilitate the formation of new bone in the bone defects. Our study, for the first time, combined the photothermal performance of semiconductor CuFeSe2 nanocrystals with the bone-forming activity of bioactive glass scaffolds, which can offer a more extensive horizon for developing novel biomaterials with dual functions of bone tumor therapy and bone regeneration.
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20
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McDermott JR, Geng X, Jiang L, Gálvez-Peralta M, Chen F, Nebert DW, Liu Z. Zinc- and bicarbonate-dependent ZIP8 transporter mediates selenite uptake. Oncotarget 2018; 7:35327-40. [PMID: 27166256 PMCID: PMC5085232 DOI: 10.18632/oncotarget.9205] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Accepted: 04/11/2016] [Indexed: 12/26/2022] Open
Abstract
Selenite (HSeO3−) is a monovalent anion of the essential trace element and micronutrient selenium (Se). In therapeutic concentrations, HSeO3− has been studied for treating certain cancers, serious inflammatory disorders, and septic shock. Little is known, however, about HSeO3− uptake into mammalian cells; until now, no mammalian HSeO3− uptake transporter has been identified. The ubiquitous mammalian ZIP8 divalent cation transporter (encoded by the SLC39A8 gene) is bicarbonate-dependent, moving endogenous substrates (Zn2+, Mn2+, Fe2+ or Co2+) and nonessential metals such as Cd2+ into the cell. Herein we studied HSeO3− uptake in: human and mouse cell cultures, shRNA-knockdown experiments, Xenopus oocytes, wild-type mice and two transgenic mouse lines having genetically altered ZIP8 expression, and mouse erythrocytes ex vivo. In mammalian cell culture, excess Zn2+ levels and/or ZIP8 over-expression can be associated with diminished viability in selenite-treated cells. Intraperitoneal HSeO3− causes the largest ZIP8-dependent increases in intracellular Se content in liver, followed by kidney, heart, lung and spleen. In every model system studied, HSeO3− uptake is tightly associated with ZIP8 protein levels and sufficient Zn2+ and HCO3− concentrations, suggesting that the ZIP8-mediated electroneutral complex transported contains three ions: Zn2+/(HCO3−)(HSeO3−). Transporters having three different ions in their transport complex are not without precedent. Although there might be other HSeO3− influx transporters as yet undiscovered, data herein suggest that mammalian ZIP8 plays a major role in HSeO3− uptake.
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Affiliation(s)
- Joseph R McDermott
- Department of Biological Sciences, Oakland University, Rochester, MI 48309, USA
| | - Xiangrong Geng
- Department of Biological Sciences, Oakland University, Rochester, MI 48309, USA
| | - Lan Jiang
- Department of Biological Sciences, Oakland University, Rochester, MI 48309, USA
| | - Marina Gálvez-Peralta
- Department of Environmental Health and Center for Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH 45267, USA
| | - Fei Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Daniel W Nebert
- Department of Environmental Health and Center for Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH 45267, USA
| | - Zijuan Liu
- Department of Biological Sciences, Oakland University, Rochester, MI 48309, USA
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21
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Jin E, Li S, Ren M, Hu Q, Gu Y, Li K. Boron Affects Immune Function Through Modulation of Splenic T Lymphocyte Subsets, Cytokine Secretion, and Lymphocyte Proliferation and Apoptosis in Rats. Biol Trace Elem Res 2017; 178:261-275. [PMID: 28092075 DOI: 10.1007/s12011-017-0932-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 01/04/2017] [Indexed: 12/20/2022]
Abstract
This study demonstrated the mechanisms of boron effects in a rat model and provided a scientific basis for the rational of boron use. These findings were achieved by investigating the effects of boron (10, 20, 40, 80, 160, 320, and 640 mg/L in drinking water or 1.5, 3, 6, 12, 24, 48, and 96 mg/kg BW) on rat serum immunoglobulins (IgGs), splenic cytokines, lymphocyte subsets, as well as on lymphocyte proliferation and apoptosis. Addition of 20 (3) and 40 (6) mg/L (mg/kg BW) of boron to drinking water significantly increased rat serum IgG concentrations, splenic IFN-γ and IL-4 expression as well as the number of splenic CD3+, CD4+ and proliferating cell nuclear antigen (PCNA)+ cells. Supplementation of drinking water with 40 mg/L (6 mg/kg BW) boron also markedly increased splenic IL-2 expression and the CD4+/CD8+ cell ratio and reduced splenic CD8+ cell number. Supplementation with 80 mg/L (12 mg/kg BW) boron significantly increased CD3+ and PCNA+ cell numbers (P < 0.05) and decreased the IL-10 expression in the spleen. Addition of 320 (48) and 640 (96) mg/L (mg/kg BW) boron markedly reduced the serum IgG concentrations; splenic IL-2 and IL-10 expression; the number of CD3+, CD4+ and PCNA+ cells; and increased the number of splenic CD8+ and caspase-3+ cells and promoted caspase-3 expression in CD3+ cells. In conclusion, these findings suggest that the supplementation of rat drinking water with 20(3) and 40(6) mg/L (mg/kg BW) boron can markedly enhance humoral and cellular immune functions, while boron concentrations above 320 mg/L (48 mg/kg BW) can have an inhibitory effect or even toxicity on immune functions. These results exhibit a U-shaped response characteristic of low and high doses of boron supplementation on immune function and imply that proper boron supplementation in food for humans and animals could be used as an immunity regulator.
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Affiliation(s)
- Erhui Jin
- Department of Animal Science, Anhui Science and Technology University, Fengyang, People's Republic of China
| | - Shenghe Li
- Department of Animal Science, Anhui Science and Technology University, Fengyang, People's Republic of China.
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
| | - Man Ren
- Department of Animal Science, Anhui Science and Technology University, Fengyang, People's Republic of China
| | - Qianqian Hu
- Department of Animal Science, Anhui Science and Technology University, Fengyang, People's Republic of China
| | - Youfang Gu
- Department of Animal Science, Anhui Science and Technology University, Fengyang, People's Republic of China
| | - Kui Li
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
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22
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Pires LV, Siviero-Miachon AA, Spinola-Castro AM, Pimentel JAC, Nishimura LS, Maia CSC, Cozzolino SMF. Selenium Status in Patients with Turner Syndrome: a Biochemical Assessment Related with Body Composition. Biol Trace Elem Res 2017; 176:217-224. [PMID: 27565799 DOI: 10.1007/s12011-016-0831-z] [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: 03/12/2016] [Accepted: 08/19/2016] [Indexed: 10/21/2022]
Abstract
Studies about selenium status in patients with Turner syndrome (TS) are non-existent in the literature. The aim of this study was to evaluate selenium status in patients with TS, while considering the different ages of the studied population and the relation with body composition. In total, 33 patients with TS were evaluated and grouped according to their developmental stages (children, adolescents, and adults). Selenium concentrations in their plasma, erythrocytes, urine, and nails were determined by using hydride generation atomic absorption spectrometry and erythrocyte glutathione peroxidase activity were measured by using Randox commercial kits. Additionally, height, weight, body fat percentage, waist circumference, and waist-height ratio were measured to characterize the patients. No differences in the selenium concentrations in the plasma, erythrocyte, urine, and nails or in the glutathione peroxidase activity were observed among the age groups (p > 0.05). The evaluated selenium levels were less than the established normal ones. The patients with larger waist circumference, body fat percentage, body mass index, and waist-height ratio showed lower glutathione peroxidase enzyme activity (p = 0.023). The present study shows that most patients with TS are deficient in selenium and that those with a greater accumulation of body fat have a lower GPx activity.
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Affiliation(s)
- Liliane Viana Pires
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Professor Lineu Prestes, n°580, Cidade Universitária, São Paulo, SP, 05508-900, Brazil.
| | | | - Angela Maria Spinola-Castro
- Division of Pediatric Endocrinology, Department of Pediatrics, Federal University of São Paulo, São Paulo, Brazil
| | - José Alexandre Coelho Pimentel
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Professor Lineu Prestes, n°580, Cidade Universitária, São Paulo, SP, 05508-900, Brazil
| | - Luciana Sigueta Nishimura
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Professor Lineu Prestes, n°580, Cidade Universitária, São Paulo, SP, 05508-900, Brazil
| | | | - Silvia Maria Franciscato Cozzolino
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Professor Lineu Prestes, n°580, Cidade Universitária, São Paulo, SP, 05508-900, Brazil
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Wang C, Li R, Huang Y, Wang M, Yang F, Huang D, Wu C, Li Y, Tang Y, Zhang R, Cheng J. Selenoprotein K modulate intracellular free Ca 2+ by regulating expression of calcium homoeostasis endoplasmic reticulum protein. Biochem Biophys Res Commun 2017; 484:734-739. [DOI: 10.1016/j.bbrc.2017.01.117] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 01/22/2017] [Indexed: 01/24/2023]
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Pain-depression dyad induced by reserpine is relieved by p,p'-methoxyl-diphenyl diselenide in rats. Eur J Pharmacol 2016; 791:794-802. [DOI: 10.1016/j.ejphar.2016.10.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/14/2016] [Accepted: 10/17/2016] [Indexed: 11/19/2022]
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Bhattacharjee A, Basu A, Sen T, Biswas J, Bhattacharya S. Nano-Se as a novel candidate in the management of oxidative stress related disorders and cancer. THE NUCLEUS 2016. [DOI: 10.1007/s13237-016-0183-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Vetvicka V, Vetvickova J. Addition of Selenium Improves Immunomodulative Effects of Glucan. NORTH AMERICAN JOURNAL OF MEDICAL SCIENCES 2016; 8:88-92. [PMID: 27042606 PMCID: PMC4791904 DOI: 10.4103/1947-2714.177311] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background: Selenium (Se) is an established essential nutrient that plays a role in various biological processes including cancer development. Similarly, stimulation of immune reactions by β-glucans is well-documented. Aims: In the current study, we focused on the stimulation of phagocytosis and interleukin (IL)-2 production and on potentiation of anticancer immunity by a combination of glucan with two types of Se. Materials and Methods: Phagocytosis was evaluated using synthetic microspheres; cancer development was measured either using breast cancer cells or using lung cancer cells. Results: Using two different murine models of cancer, we showed that the Se/glucan combination strongly suppressed the growth of cancer, mostly probably via stimulation of immunity. Conclusions: A combination of glucan with Se offers superior stimulation of immunity and inhibition of cancer growth.
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Affiliation(s)
- Vaclav Vetvicka
- Department of Pathology, University of Louisville, Louisville, Kentucky, USA
| | - Jana Vetvickova
- Department of Pathology, University of Louisville, Louisville, Kentucky, USA
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Leite MR, Cechella JL, Mantovani AC, Duarte MM, Nogueira CW, Zeni G. Swimming exercise and diphenyl diselenide-supplemented diet affect the serum levels of pro- and anti-inflammatory cytokines differently depending on the age of rats. Cytokine 2015; 71:119-23. [DOI: 10.1016/j.cyto.2014.09.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 09/16/2014] [Accepted: 09/18/2014] [Indexed: 01/02/2023]
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Gao F, Yuan Q, Gao L, Cai P, Zhu H, Liu R, Wang Y, Wei Y, Huang G, Liang J, Gao X. Cytotoxicity and therapeutic effect of irinotecan combined with selenium nanoparticles. Biomaterials 2014; 35:8854-8866. [PMID: 25064805 DOI: 10.1016/j.biomaterials.2014.07.004] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 07/01/2014] [Indexed: 11/24/2022]
Abstract
Although chemotherapeutic drugs are widely applied for clinic tumor treatment, severe toxicity restricts their therapeutic efficacy. In this study, we reported a new form of selenium, selenium nanoparticles (Nano Se) which have significant lower toxicity and acceptable bioavailability. We investigated Nano Se as chemotherapy preventive agent to protect against toxicities of anticancer drug irinotecan and synergistically enhance the anti-tumor treatment effect in vitro and in vivo. The underlying mechanisms were also investigated. The combination of Nano Se and irinotecan showed increased cytotoxic effect with HCT-8 tumor cells likely by p53 mediated apoptosis. Nano Se inhibited growth of HCT-8 tumor cells partially through caspases mediated apoptosis. In vivo experiment showed Nano Se at a dose of 4 mg/kg/day significantly alleviated adverse effects induced by irinotecan (60 mg/kg) treatment. Nano Se alone treatment did not induce any toxic manifestations. The combination of Nano Se and irinotecan dramatically inhibited tumor growth and significantly induced apoptosis of tumor cells in HCT-8 cells xenografted tumor. Tumor inhibition rate was about 17.2%, 48.6% and 62.1% for Nano Se, irinotecan and the combination of Nano Se and irinotecan, respectively. The beneficial effects of Nano Se for tumor therapy were mainly ascribed to selectively regulating Nrf2-ARE (antioxidant responsive elements) pathway in tumor tissues and normal tissues. Our results suggest Nano Se is a promising selenium species with potential application in cancer treatment.
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Affiliation(s)
- Fuping Gao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Qing Yuan
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Liang Gao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Pengju Cai
- Affiliated Ruikang Hospital of Guangxi University of TCM, Nanning, Guangxi 530011, China
| | - Huarui Zhu
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Ru Liu
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yaling Wang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yueteng Wei
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Guodong Huang
- Affiliated Ruikang Hospital of Guangxi University of TCM, Nanning, Guangxi 530011, China
| | - Jian Liang
- Affiliated Ruikang Hospital of Guangxi University of TCM, Nanning, Guangxi 530011, China
| | - Xueyun Gao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
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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: 4.1] [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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Mocchegiani E, Costarelli L, Giacconi R, Malavolta M, Basso A, Piacenza F, Ostan R, Cevenini E, Gonos ES, Monti D. Micronutrient-gene interactions related to inflammatory/immune response and antioxidant activity in ageing and inflammation. A systematic review. Mech Ageing Dev 2014; 136-137:29-49. [PMID: 24388876 DOI: 10.1016/j.mad.2013.12.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 12/06/2013] [Accepted: 12/20/2013] [Indexed: 02/07/2023]
Abstract
Recent longitudinal studies in dietary daily intake in human centenarians have shown that a satisfactory content of some micronutrients within the cells maintain several immune functions, a low grade of inflammation and preserve antioxidant activity. Micronutrients (zinc, copper, selenium) play a pivotal role in maintaining and reinforcing the performances of the immune and antioxidant systems as well as in affecting the complex network of the genes (nutrigenomic) with anti- and pro-inflammatory tasks. Genes of pro- and anti-inflammatory cytokines and some key regulators of trace elements homeostasis, such as Metallothioneins (MT), are involved in the susceptibility to major geriatric disease/disorders. Moreover, the genetic inter-individual variability may affect the nutrients' absorption (nutrigenetic) with altered effects on inflammatory/immune response and antioxidant activity. The interaction between genetic factors and micronutrients (nutrigenomic and nutrigenetic approaches) may influence ageing and longevity because the micronutrients may become also toxic. This review reports the micronutrient-gene interactions in ageing and their impact on the healthy state with a focus on the method of protein-metal speciation analysis. The association between micronutrient-gene interactions and the protein-metal speciation analysis can give a complete picture for a personalized nutrient supplementation or chelation in order to reach healthy ageing and longevity.
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Affiliation(s)
- Eugenio Mocchegiani
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy.
| | - Laura Costarelli
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Robertina Giacconi
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Marco Malavolta
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Andrea Basso
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Francesco Piacenza
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Rita Ostan
- Department of Experimental Diagnostic and Specialty Medicine (DIMES) and Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - Elisa Cevenini
- Department of Experimental Diagnostic and Specialty Medicine (DIMES) and Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - Efstathios S Gonos
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, 48 Vas. Constantinou Ave., Athens 11635, Greece
| | - Daniela Monti
- Department of Clinical and Experimental Biomedical Sciences, University of Florence, Viale Morgagni, 50, 50134 Florence, Italy
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Ying X, Chen X, Cheng S, Zhao Z, Guo X, Chen H, Hong J, Peng L, Xu H. SeMet inhibits IL-1β-induced rheumatoid fibroblast-like synoviocytes proliferation and the production of inflammatory mediators. Biol Trace Elem Res 2013; 153:437-45. [PMID: 23681674 DOI: 10.1007/s12011-013-9696-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2013] [Accepted: 05/01/2013] [Indexed: 10/26/2022]
Abstract
Previous studies demonstrated that Se has anti-inflammatory activities and that it plays an important role in maintaining normal cartilage metabolism. Nevertheless, little is known about the effects of Se on the production of inflammatory mediators in rheumatoid fibroblast-like synoviocytes (FLSs). The objective of this study was to determine the effects of Se on the interleukin-1β (IL-1β)-induced proliferation of FLSs and production of matrix metalloproteinases (MMPs) and inflammatory mediators by FLSs. In this study, the proliferation of FLSs was assessed using the MTT assay after cultured with/without the presence of IL-1β and SeMet. Human FLSs were pretreated with SeMet (0.5 μM) and subsequently stimulated with IL-1β (5 ng/ml) for 24 h. Production of NO and PGE2 were evaluated by the Griess reaction and ELISA. Gene expression of MMP-3, MMP-13, iNOS, and COX-2 was measured by real-time PCR. MMP-3 and MMP-13 proteins in culture medium were determined using cytokine-specific ELISA. Western immunoblotting was used to analyze the iNOS and COX-2 protein production in the culture medium and the activity of phosphorylation of P38 MAPK pathways. We found that SeMet significantly inhibits IL-1β-induced proliferation of FLSs. SeMet also inhibited the production of PGE2 and NO induced by IL-1β. SeMet significantly decreased IL-1β-stimulated gene expression and production of MMP-3, MMP-13, iNOS, and COX-2 in human FLSs. In addition, we found SeMet partly inhibited the IL-1β-induced activation of p38 MAPK pathways. The present report is first to demonstrate that SeMet inhibits IL-1β-induced expression of MMPs and production of inflammatory factors in cultured FLSs, indicating that SeMet may be a potential agent in the treatment of rheumatoid arthritis.
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Affiliation(s)
- Xiaozhou Ying
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Wenzhou Medical College, 109 Xue Yuan Xi Road, Wenzhou 325000, China
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JANAKIRAM NAVEENAB, MOHAMMED ALTAF, RAVILLAH DURGADEVI, CHOI CHANGIN, ZHANG YUTING, DESAI DHIMANT, AMIN SHANTU, RAO CHINTHALAPALLYV. Chemopreventive effects of PBI-Se, a selenium-containing analog of PBIT, on AOM-induced aberrant crypt foci in F344 rats. Oncol Rep 2013; 30:952-60. [DOI: 10.3892/or.2013.2483] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 03/26/2013] [Indexed: 11/06/2022] Open
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The efficacy of selenium in prevention of oral mucositis in patients undergoing hematopoietic SCT: a randomized clinical trial. Bone Marrow Transplant 2013; 48:832-6. [PMID: 23292233 DOI: 10.1038/bmt.2012.250] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oral mucositis (OM) is a complication of high-dose chemotherapy (HDC) followed by hematopoietic SCT (HSCT) with few effective treatments. Selenium has a cytoprotective role via the glutathione peroxidase (Glu.Px) enzyme and prevents chemotherapy-induced toxicities. We performed a double-blind, randomized, placebo-controlled study to evaluate the efficacy of selenium on the prevention of OM in 77 patients with leukemia, undergoing allogeneic HSCT. Thirty-seven patients received oral selenium tablets (200 mcg twice daily) from the starting day of HDC to 14 days after transplantation. OM was evaluated daily for 21 days after transplantation according to World Health Organization oral toxicity scale. The incidence of severe OM (grades 3-4) was significantly lower in the selenium group (10.8% vs 35.1%, P<0.05). We noted that the duration of objective OM (grades 2-4), excluding patient's self-declaration (grade 1), was significantly shorter in the selenium group (3.6±1.84 vs 5.3±2.2 days, P=0.014). Significant elevations in serum selenium level and plasma Glu.Px activity were observed 7 and 14 days after transplantation compared with baseline in the selenium group. We conclude that selenium can reduce the duration and severity of OM after HDC. Clinicaltrial.org ID: NCT01432873.
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Han J, Guo X, Lei Y, Dennis BS, Wu S, Wu C. Synthesis and characterization of selenium-chondroitin sulfate nanoparticles. Carbohydr Polym 2012; 90:122-6. [PMID: 24751019 DOI: 10.1016/j.carbpol.2012.04.068] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 04/27/2012] [Accepted: 04/30/2012] [Indexed: 11/18/2022]
Abstract
A novel selenium-chondroitin sulfate (SeCS) was synthesized by ultrasonic and dialysis method. With characterization by FTIR, XRD and TEM, the SeCS was found to form nanoparticles in distilled water through a self-aggregation progress. The SeCS nanoparticles had sizes between 30 and 200 nm with selenium entrapment efficiency of about 10.1%. The anti-toxin capacity of SeCS nanoparticles was demonstrated through MTT and apoptosis assays in vitro. Results indicated that the SeCS was less cytotoxic to chondrocytes than sodium selenite. In particular, the SeCS could obviously alleviate chondrocyte apoptosis induced by T-2 toxin compared to chondroitin sulfate. These results thus represent an advanced understanding of the properties of SeCS nanoparticles and demonstrate their exciting potential applications in therapy of Kashin-Beck disease (KBD) and osteoarthritis.
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Affiliation(s)
- Jing Han
- Faculty of Public Health, College of Medicine, Key Laboratory of Environment and Gene Related Diseases of Ministry Education, Key Laboratory of Trace elements and Endemic Diseases, Ministry of Health, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
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Liu J, Bao W, Jiang M, Zhang Y, Zhang X, Liu L. Chromium, selenium, and zinc multimineral enriched yeast supplementation ameliorates diabetes symptom in streptozocin-induced mice. Biol Trace Elem Res 2012; 146:236-45. [PMID: 22081404 DOI: 10.1007/s12011-011-9248-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Accepted: 10/25/2011] [Indexed: 12/28/2022]
Abstract
Chromium, selenium, and zinc malnutrition has been implicated in the pathogenesis of diabetic mellitus. This study aims to investigate the effects of novel multiminerals-enriched yeast (MMEY) which are minerals supplementation containing elevated levels of chromium, selenium, and zinc simultaneously in a diabetic animal model. Streptozocin-induced diabetic male Balb/c mice (n = 80) were randomly divided into diabetes control group and three treatment groups. They were administrated oral gavages with low, medium, or high doses of MMEY, respectively. Meanwhile, healthy male Balb/c mice (n = 40) of the same body weight were randomly assigned into normal control group and high dose of MMEY control group. After 8 weeks duration of treatment, the animals were sacrificed by cervical dislocation. Serum glucose concentrations, lipid profiles, oxidative/antioxidant, and immunity status were determined. No significant adverse effects were observed in the high-dose MMEY control group. Treatment of the diabetic mice with medium- or high-dose MMEY significantly decreased serum glucose, triglyceride, total cholesterol, and malondialdehyde and increased high-density lipoprotein cholesterol, glutathione, and the activities of superoxide dismutase and glutathione peroxidase. In addition, MMEY ameliorated the pathological damage of the pancreatic islets, elevated the thymus or spleen coefficient, and increased the expressions of interleukin-2 and -4 in spleen lymphocytes compared with unsupplemented diabetic mice. In conclusion, these results indicate that supplemental MMEY inhibits hyperglycemia, abates oxidative stress, modulates disorders of lipid metabolism, and reduces the impairment of immune function in diabetic mice; especially notable are the protective effects of medium doses of MMEY on the islet cells of diabetic mice.
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Affiliation(s)
- Jun Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, People's Republic of China
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In vitro and in vivo percutaneous absorption of seleno-L-methionine, an antioxidant agent, and other selenium species. Acta Pharmacol Sin 2011; 32:1181-90. [PMID: 21785447 DOI: 10.1038/aps.2011.89] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
AIM To investigate the in vitro and in vivo percutaneous absorption of seleno-L-methionine (Se-L-M), an ultraviolet (UV)-protecting agent, from aqueous solutions. METHODS Aqueous solutions of Se-L-M were prepared in pH 4, 8, and 10.8 buffers. The pH 8 buffer contained 30% glycerol, propylene glycol (PG) and polyethylene glycol (PEG) 400. The in vitro skin permeation of Se-L-M via porcine skin and nude mouse skin was measured and compared using Franz diffusion cells. The in vivo skin tolerance study was performed, which examined transepidermal water loss (TEWL), skin pH and erythema. RESULTS In the excised porcine skin, the flux was 0.1, 11.4 and 8.2 μg·cm(-2)·h(-1) for the pH 4, 8, and 10.8 buffers, respectively. A linear correlation between the flux and skin deposition was determined. According to permeation across skin with different treatments (stripping, delipidation, and ethanol treatments), it was determined that the intracellular route comprised the predominant pathway for Se-L-M permeation from pH 8 buffer. Aqueous solutions of seleno-DL-methionine (Se-DL-M), selenium sulfide and selenium-containing quantum dot nanoparticles were also used as donor systems. The DL form showed a lower flux (7.0 vs 11.4 μg·cm(-2)·h(-1)) and skin uptake (23.4 vs 47.3 μg/g) as compared to the L form, indicating stereoselective permeation of this compound. There was no or only negligible permeation of selenium sulfide and quantum dots into and across the skin. With in vivo topical application for 4 and 8 h, the skin deposition of Se-L-M was about 7 μg/g, and values were comparable to each other. The topical application of Se-L-M for up to 5 d did not caused apparent skin irritation. However, slight inflammation of the dermis was noted according to the histopathological examination. CONCLUSION Se-L-M was readily absorbed by the skin in both the in vitro and in vivo experiments. The established profiles of Se-L-M skin absorption will be helpful in developing topical products of this compound.
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Garvin DF, Hareland G, Gregoire BR, Finley JW. Impact of Wheat Grain Selenium Content Variation on Milling and Bread Baking. Cereal Chem 2011. [DOI: 10.1094/cchem-05-10-0076] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- David F. Garvin
- USDA-ARS Plant Science Research Unit, 411 Borlaug Hall, University of Minnesota, 1991 Upper Buford Circle, St. Paul, MN 55108. Names are necessary to report factually on available data; however, the USDA neither guarantees nor warrants the standard of the product, and the use of the name by the USDA implies no approval of the product to the exclusion of others that may also be suitable
- Corresponding author. E-mail:
| | - Gary Hareland
- USDA-ARS Wheat Quality Laboratory, Harris Hall, North Dakota State University, Fargo, ND 58105
| | - Brian R. Gregoire
- USDA-ARS Grand Forks Human Nutrition Research Center, 2420 2nd Ave N., Grand Forks, ND 58203
| | - John W. Finley
- USDA-ARS Grand Forks Human Nutrition Research Center, 2420 2nd Ave N., Grand Forks, ND 58203
- Current address: United States Department of Agriculture, Agricultural Research Service, 5601 Sunnyside Avenue, Beltsville, MD 20705-5138
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Cheng AWM, Stabler TV, Bolognesi M, Kraus VB. Selenomethionine inhibits IL-1β inducible nitric oxide synthase (iNOS) and cyclooxygenase 2 (COX2) expression in primary human chondrocytes. Osteoarthritis Cartilage 2011; 19:118-25. [PMID: 21035557 PMCID: PMC3053078 DOI: 10.1016/j.joca.2010.10.019] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Revised: 08/27/2010] [Accepted: 10/18/2010] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Several lines of evidence show that selenium (Se) has potential protective effects in osteoarthritis (OA), however the exact mechanism is still unclear. As interleukin-1β (IL-1β) is one of the key proinflammatory cytokines contributing to the progression in OA, we investigated the effect of Se in neutralizing the inflammatory effects of IL-1β on nitric oxide (NO) and prostaglandin E₂ (PGE₂) production, and the signaling pathways involved. METHODS Isolated primary human chondrocytes were pretreated with selenomethionine (SeMet) (0.5 μM SeMet) for 24 h then co-treated without or with IL-1β (10 pg/ml or 50 pg/ml) for another 24 h followed by RNA isolation. Gene expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX2) was determined by quantitative Real Time-Polymerase Chain Reaction. Culture media concentrations of NO and PGE₂ were determined by nitrite (NO₂⁻) assay and immunoassay respectively. For analysis of cell signaling pathways, chondrocytes were pretreated with SeMet then stimulated with IL-1β for 0-45 min. The activity of IL-1β signaling pathways was determined by Western blot screening of phosphorylation states of signal transduction proteins. RESULTS SeMet inhibited chondrocyte gene expression of IL-1β induced iNOS (31-54%, P=0.031) and COX2 (50-65%, P=0.031) with corresponding reductions in both NO (19-47%, P=0.031) and PGE₂ (24-32%, P=0.031) production. Pretreatment with SeMet attenuated IL-1β induced activation of p38 MAPK (39%, P=0.039) but not the extracellular signal-regulated kinase pathways (ERK) 1/2, c-Jun N-terminal kinases (JNK) or nuclear factor κB (NFκB). CONCLUSIONS This study elucidates one potential protective mechanism of Se, namely through the alteration of cell signaling and downstream transcription of pro-inflammatory effects of IL-1β.
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Affiliation(s)
| | - Thomas V. Stabler
- Department of Medicine, Duke University Medical Center, Durham, NC 27710
| | - Michael Bolognesi
- Department of Surgery, Duke University Medical Center, Durham, NC 27710
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Li WH, Hsu FL, Liu JT, Liao VHC. The ameliorative and toxic effects of selenite on Caenorhabditis elegans. Food Chem Toxicol 2010; 49:812-9. [PMID: 21145367 DOI: 10.1016/j.fct.2010.12.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 09/30/2010] [Accepted: 12/03/2010] [Indexed: 11/18/2022]
Abstract
Selenium is an essential trace nutrient that has a narrow exposure window between its beneficial and detrimental effects. We investigated how selenium affected the development, fertility, and cholinergic signaling of the nematode, Caenorhabditis elegans. Our results showed that selenite supplementation at 0.01 and 0.05 μM accelerated development and increased the brood size, while the addition of 20 μM selenite retarded the developmental rate and decreased the brood size. We also showed that the 0.01 μM selenite-pretreated nematodes were more resistant to paralysis induced by an acetylcholinesterase inhibitor, aldicarb, and a nicotinic acetylcholine receptor agonist, levamisole, compared to untreated worms. In contrast, 20 μM selenite-pretreated animals were more sensitive to aldicarb- and levamisole-induced paralysis compared to untreated worms. We measured the internal selenium in supplemented worms using inductively coupled plasma atomic emission spectroscopy, and the data obtained suggested that selenite added to growth medium was taken up by the worms. Taken together, these results suggest that selenite exerts both ameliorative and toxic effects on C.elegans, depending on the amount. Our investigations here thus reinforce our understanding of the ameliorative and toxic effects of selenium on development, reproduction, and cholinergic signaling.
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Affiliation(s)
- Wen-Hsuan Li
- Department of Bioenvironmental Systems Engineering, National Taiwan University, 1 Roosevelt Road, Sec 4, Taipei 106, Taiwan
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Tabassum A, Bristow RG, Venkateswaran V. Ingestion of selenium and other antioxidants during prostate cancer radiotherapy: A good thing? Cancer Treat Rev 2010; 36:230-4. [PMID: 20079573 DOI: 10.1016/j.ctrv.2009.12.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Revised: 12/07/2009] [Accepted: 12/09/2009] [Indexed: 01/25/2023]
Affiliation(s)
- A Tabassum
- Molecular and Cellular Biology, Sunnybrook Health Science Centre, 2075 Bayview Avenue, Toronto, Ontario, Canada M4N 3M5.
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Xue H, Wang W, Li Y, Shan Z, Li Y, Teng X, Gao Y, Fan C, Teng W. Selenium upregulates CD4(+)CD25(+) regulatory T cells in iodine-induced autoimmune thyroiditis model of NOD.H-2(h4) mice. Endocr J 2010; 57:595-601. [PMID: 20453397 DOI: 10.1507/endocrj.k10e-063] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Selenium (Se) is required for thyroid hormone synthesis and metabolism. Se treatment reduces serum thyroidspecific antibody titers in patients with autoimmune thyroiditis (AIT), but the exact mechanism is not clear. We investigated the effects of Se treatment on CD4(+)CD25(+)Foxp3(+) regulatory T cells (Treg) in a iodine-induced autoimmune thyroiditis model. NOD.H-2(h4) mice were randomly divided into control, AIT untreated, and AIT with Se treatment groups. Mice were fed with 0.005% sodium iodine (NaI) water for 8 weeks to induce AIT. Se-treated mice received 0.3 mg/L sodium selenite in drinking water. The AIT mice had fewer Treg cells and reduced Foxp3 mRNA expression in splenocytes compared with the controls (p < 0.01). The percentage of Treg cells and expression of Foxp3 mRNA were increased by Se treatment (as compared with untreated AIT mice, p < 0.05). Mice that received Se supplementation also had lower serum thyroglobulin antibody (TgAb) titers and reduced lymphocytic infiltration in thyroids than untreated AIT mice. These data suggest that CD4(+)CD25(+) T cells play an important role in the development of AIT. Se supplementation may restore normal levels of CD4(+)CD25(+) T cells by up-regulating the expression of Foxp3 mRNA in mice with AIT.
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Affiliation(s)
- Haibo Xue
- Department of Endocrinology and Metabolism, Institute of Endocrinology, First Affiliated Hospital, China Medical University, Shenyang, China
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Abstract
The goals of dietary therapy in rheumatic diseases are alleviation of under- and malnutrition, inhibition of inflammation, prophylaxis of osteoporosis, as well as recognition and treatment of nutrient sensitivities or intolerances.Inflammation inhibition in these patients is improved by manipulating the omega-3/omega-6 fatty acids ratio in the diet. Reduction of dietary arachidonic acid is recommended. This polyunsaturated fatty acid is the main precursor of pro-inflammatory mediators which interact with chemokines und cytokines. Simultaneously, intake of anti-inflammatory omega-3 fatty acids is increased. Studies have shown that this dietary regimen results in an amelioration of symptoms in patients with inflammatory rheumatic diseases. Dietary therapy in rheumatic diseases is often complicated by concomitant diseases and physical handicaps necessitating interdisciplinary patient care, consisting of rheumatologists, nutritionists, physiotherapists and ergotherapists. Dietary therapy of rheumatic diseases is an adjuvant therapy that should be initiated after a patient is properly diagnosed.
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Zhang Y, Gladyshev VN. Comparative Genomics of Trace Elements: Emerging Dynamic View of Trace Element Utilization and Function. Chem Rev 2009; 109:4828-61. [DOI: 10.1021/cr800557s] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yan Zhang
- Department of Biochemistry and Redox Biology Center, University of Nebraska, Lincoln, Nebraska 68588-0664
| | - Vadim N. Gladyshev
- Department of Biochemistry and Redox Biology Center, University of Nebraska, Lincoln, Nebraska 68588-0664
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Enhancement of the antioxidants ergothioneine and selenium in Pleurotus eryngii var. eryngii basidiomata through cultural practices. World J Microbiol Biotechnol 2009. [DOI: 10.1007/s11274-009-0049-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Levkut M, Revajová V, Levkutová M, Ševčíková Z, Herich R, Borutová R, Leng L. Leukocytic responses of broilers following dietary contamination with deoxynivalenol and/or treatment by dietary selenium supplementation. Br Poult Sci 2009; 50:181-7. [DOI: 10.1080/00071660802710090] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Nadiminty N, Gao AC. Mechanisms of selenium chemoprevention and therapy in prostate cancer. Mol Nutr Food Res 2008; 52:1247-60. [DOI: 10.1002/mnfr.200700369] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Hama H, Yamanoshita O, Chiba M, Takeda I, Nakajima T. Selenium-enriched Japanese radish sprouts influence glutathione peroxidase and glutathione S-transferase in an organ-specific manner in rats. J Occup Health 2008; 50:147-54. [PMID: 18403865 DOI: 10.1539/joh.l7130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Selenium-enriched Japanese radish sprouts (Se-enriched JRS), in which Se-methylselenocysteine accounted for 80% of Se compounds, inhibited mammary tumorigenesis induced by 7,12-dimethylbenz[a]anthracene in rats. The effects of Se-enriched JRS on the oxidative stress-scavenging enzymes were investigated in rats. F344 female rats were fed test diets, in which Se-enriched JRS was added at 0, 2.4, 5.0, 8.8 or 12.5 ppm Se to commercial rodent chow for 3 wk. Glutathione peroxidase (GPx) and glutathione S-transferase (GST) in rat livers, kidneys and lungs were measured. Tissue Se concentrations at the highest Se dose (12.5 ppm) were high in order as follows: kidney > liver > lung. The diet at 12.5 ppm Se reduced the increase in body weight and, conversely, increased the liver weight. The Se test diets decreased hepatic and renal GPx activity at more than 2.4 ppm and 5.0 ppm, respectively. In contrast, the test diets increased pulmonary GPx activity at more than 2.4 ppm Se. The diets increased hepatic GST activity at more than 2.4 ppm Se dose dependently, whereas they reduced pulmonary GST activity at more than 2.4 ppm. The diet of 12.5 ppm Se induced GST Yp in all 3 organs and GST Yb1 in the liver. Thus, Se-enriched JRS influenced GPx and GST activity in a symmetrical manner in the livers and lungs of rats, with hepatic GST possibly affected, in part, by the induction of GST Yb1.
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Affiliation(s)
- Hidetoshi Hama
- Department of Preventive Medicine, Shinshu University School of Medicine, Japan
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Selected vitamins and trace elements support immune function by strengthening epithelial barriers and cellular and humoral immune responses. Br J Nutr 2008; 98 Suppl 1:S29-35. [PMID: 17922955 DOI: 10.1017/s0007114507832971] [Citation(s) in RCA: 330] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Adequate intakes of micronutrients are required for the immune system to function efficiently. Micronutrient deficiency suppresses immunity by affecting innate, T cell mediated and adaptive antibody responses, leading to dysregulation of the balanced host response. This situation increases susceptibility to infections, with increased morbidity and mortality. In turn, infections aggravate micronutrient deficiencies by reducing nutrient intake, increasing losses, and interfering with utilization by altering metabolic pathways. Insufficient intake of micronutrients occurs in people with eating disorders, in smokers (active and passive), in individuals with chronic alcohol abuse, in certain diseases, during pregnancy and lactation, and in the elderly. This paper summarises the roles of selected vitamins and trace elements in immune function. Micronutrients contribute to the body's natural defences on three levels by supporting physical barriers (skin/mucosa), cellular immunity and antibody production. Vitamins A, C, E and the trace element zinc assist in enhancing the skin barrier function. The vitamins A, B6, B12, C, D, E and folic acid and the trace elements iron, zinc, copper and selenium work in synergy to support the protective activities of the immune cells. Finally, all these micronutrients, with the exception of vitamin C and iron, are essential for antibody production. Overall, inadequate intake and status of these vitamins and trace elements may lead to suppressed immunity, which predisposes to infections and aggravates malnutrition. Therefore, supplementation with these selected micronutrients can support the body's natural defence system by enhancing all three levels of immunity.
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Stammer K, Edassery SL, Barua A, Bitterman P, Bahr JM, Hales DB, Luborsky JL. Selenium-Binding Protein 1 expression in ovaries and ovarian tumors in the laying hen, a spontaneous model of human ovarian cancer. Gynecol Oncol 2008; 109:115-21. [PMID: 18272210 DOI: 10.1016/j.ygyno.2007.12.030] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2007] [Revised: 12/13/2007] [Accepted: 12/17/2007] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Reduced Selenium-Binding Protein 1 (SELENBP1) expression was recently shown in multiple cancers. There is little information on the expression and function of SELENBP1 in cancer progression. In order to develop a better understanding of the role of SELENBP1 in ovarian cancer, our objective was to determine if SELENBP1 is expressed in the normal ovaries and ovarian tumors in the egg-laying hen, a spontaneous model of human ovarian cancer. METHODS SPB1 mRNA expression in normal ovary (n=20) and ovarian tumors (n=23) was evaluated by RT-PCR. Relative levels of mRNA were compared by quantitative RT-PCR (qRT-PCR) in selected samples. SELENBP1 protein expression was evaluated by 1D Western blot and immunohistochemistry with a commercial anti-human SELENBP1 antibody. RESULTS SELENBP1 mRNA and protein was expressed in 100% of normal and ovarian tumors and qRT-PCR confirmed decreased mRNA expression in 80% of ovarian tumors. SELENBP1 was primarily localized in surface epithelial cells of normal ovaries. In ovaries containing early tumor lesions, SELENBP1 expression was reduced in the surface epithelium near the tumor and was expressed in tumor cells, while more distant regions with normal histology retained SELENBP1 expression in the surface epithelium. CONCLUSIONS We have shown for the first time that SELENBP1 is expressed in both normal ovaries and ovarian tumors in the hen and that SELENBP1 expression is altered in the vicinity of the tumor. Furthermore, SELENBP1 expression in normal ovarian surface epithelium and in ovarian tumors parallels that previously reported for ovarian cancer in women.
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Affiliation(s)
- Karen Stammer
- Department of Pharmacology, Rush University Medical Center, Chicago, IL 60612, USA
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