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Nascimento H, Malaquias MJ, Pinto CM, Sá Silva J, Rochate D, Fraga C, Alves JE, Ramos C, Gandara J, Ferreira S, Lopes V, Cavaco S, Pessegueiro Miranda H, Almeida A, Magalhães M. Trace Element Imbalances in Acquired Hepatocerebral Degeneration and Changes after Liver Transplant. BIOLOGY 2023; 12:804. [PMID: 37372089 DOI: 10.3390/biology12060804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/17/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023]
Abstract
Brain manganese (Mn) accumulation is a key feature in patients with acquired hepatocerebral degeneration (AHD). The role of trace elements other than Mn in AHD needs to be clarified. In this study, using inductively coupled plasma mass spectrometry, we aimed to evaluate blood levels of trace elements in patients with AHD before and after liver transplantation (LT). Trace element levels in the AHD group were also compared with those of healthy controls (blood donors, n = 51). Fifty-one AHD patients were included in the study (mean age: 59.2 ± 10.6 years; men: 72.5%). AHD patients had higher levels of Mn, Li, B, Ni, As, Sr, Mo, Cd, Sb, Tl and Pb and a higher Cu/Se ratio, and lower levels of Se and Rb. Six patients (two women; mean age 55 ± 8.7 years) underwent LT, and there was an improvement in neurological symptoms, a significant increase in the Zn, Se and Sr levels, and a decrease in the Cu/Zn and Cu/Se ratios. In summary, several trace element imbalances were identified in AHD patients. Liver transplantation resulted in the improvement of neurological manifestations and the oxidant/inflammatory status. It is possible that observed changes in trace element levels may play a role in the pathophysiology and symptomatology of AHD.
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Affiliation(s)
- Henrique Nascimento
- Neurology Service, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Maria João Malaquias
- Neurology Service, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Catarina Mendes Pinto
- Neuroradiology Service, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - José Sá Silva
- Neuroradiology Service, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Dina Rochate
- Hematology Service, Hospital do Divino Espírito Santo, 9500-370 Ponta Delgada, Portugal
| | - Cristina Fraga
- Hematology Service, Hospital do Divino Espírito Santo, 9500-370 Ponta Delgada, Portugal
| | - José Eduardo Alves
- Neuroradiology Service, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Cristina Ramos
- Neuroradiology Service, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Judit Gandara
- Hepatic Pancreatic Transplantation Unit, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Sofia Ferreira
- Hepatic Pancreatic Transplantation Unit, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Vítor Lopes
- Hepatic Pancreatic Transplantation Unit, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Sara Cavaco
- Neuropsychology Unit, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Helena Pessegueiro Miranda
- Hepatic Pancreatic Transplantation Unit, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
| | - Agostinho Almeida
- Laboratório Associado para a Química Verde (Associated Laboratory for Green Chemistry) of the Network of Chemistry and Technology (LAQV/REQUIMTE), Department of Chemical Sciences, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Marina Magalhães
- Neurology Service, Centro Hospitalar Universitário de Santo António, 4099-001 Porto, Portugal
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Turck D, Bohn T, Castenmiller J, de Henauw S, Hirsch‐Ernst K, Knutsen HK, Maciuk A, Mangelsdorf I, McArdle HJ, Peláez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Aggett P, Crous Bou M, Cubadda F, Ciccolallo L, de Sesmaisons Lecarré A, Fabiani L, Titz A, Naska A. Scientific opinion on the tolerable upper intake level for selenium. EFSA J 2023; 21:e07704. [PMID: 36698500 PMCID: PMC9854220 DOI: 10.2903/j.efsa.2023.7704] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver a scientific opinion on the tolerable upper intake level (UL) for selenium. Systematic reviews of the literature were conducted to identify evidence regarding excess selenium intake and clinical effects and potential biomarkers of effect, risk of chronic diseases and impaired neuropsychological development in humans. Alopecia, as an early observable feature and a well-established adverse effect of excess selenium exposure, is selected as the critical endpoint on which to base a UL for selenium. A lowest-observed-adverse-effect-level (LOAEL) of 330 μg/day is identified from a large randomised controlled trial in humans (the Selenium and Vitamin E Cancer Prevention Trial (SELECT)), to which an uncertainty factor of 1.3 is applied. A UL of 255 μg/day is established for adult men and women (including pregnant and lactating women). ULs for children are derived from the UL for adults using allometric scaling (body weight0.75). Based on available intake data, adult consumers are unlikely to exceed the UL, except for regular users of food supplements containing high daily doses of selenium or regular consumers of Brazil nuts. No risk has been reported with the current levels of selenium intake in European countries from food (excluding food supplements) in toddlers and children, and selenium intake arising from the natural content of foods does not raise reasons for concern. Selenium-containing supplements in toddlers and children should be used with caution, based on individual needs.
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Qiao L, Lin X, Zhao Y, Wang Q, Liu H, You M, Yuan Q, Yang Z, Bian W, Liu J, Guo Z, Han J. Short-term Dietary Selenium Deficiency Induced Liver Fibrosis by Inhibiting the Akt/mTOR Signaling Pathway in Rats. Biol Trace Elem Res 2022:10.1007/s12011-022-03453-7. [PMID: 36282470 DOI: 10.1007/s12011-022-03453-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/14/2022] [Indexed: 11/24/2022]
Abstract
The effects of short-term dietary selenium deficiency on the liver and protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathway were evaluated. Fourteen growing rats were randomly divided into control and selenium deficiency groups and fed standard and selenium-deficient diets for 4 weeks, respectively. The serum and liver selenium concentrations were measured to evaluate the construction of animal models with selenium deficiency. Liver tissues were analyzed by transmission electron microscope, hematoxylin-eosin staining, and Masson staining to observe the ultrastructural changes, pathological changes, and severity of liver fibrosis, respectively. Besides, immunohistochemical staining (IHC) was used to analyze the effects of selenium deficiency on the expression of key proteins in the Akt/mTOR signaling pathway. The results showed that selenium concentrations in the serum and liver tissue were significantly lower in the selenium deficiency group than in the control group, and the selenium deficiency intervention could affect the morphology and structure of hepatocytes and mitochondria. Meanwhile, the liver tissue showed structural damage and fibrotic changes in the selenium deficiency group. The IHC results showed the positive staining rates of Akt, phosphorylation-modified protein kinase B (p-Akt), mTOR, and phosphorylation-modified mammalian target of the rapamycin (p-mTOR) in the liver of the selenium deficiency group which were significantly lower than that of the control group. In conclusion, short-term selenium deficiency dietary intervention could lead to liver fibrosis by inhibiting the Akt/mTOR signaling pathway.
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Affiliation(s)
- Lichun Qiao
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
| | - Xue Lin
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
| | - Yan Zhao
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
| | - Qingfeng Wang
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
- Xi'an University of Science and Technology Hospital, Xi'an, 710054, Shaanxi, China
| | - Haobiao Liu
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
| | - Mei You
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
- Shaanxi Provincial Cancer Hospital, Xi'an, 710061, Shaanxi, China
| | - Qian Yuan
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
| | - Zhihao Yang
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
| | - Wenming Bian
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
| | - Jiaxin Liu
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
| | - Ziwei Guo
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China
| | - Jing Han
- Department of Occupational and Environmental Health, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
- Global Health Institute, Health Science Center, Xi'an Jiaotong University, Xi'an, 712000, Shaanxi, China.
- Key Laboratory of Environment and Genes Related to Diseases, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
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5
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Prystupa A, Kiciński P, Luchowska-Kocot D, Błażewicz A, Niedziałek J, Mizerski G, Jojczuk M, Ochal A, Sak JJ, Załuska W. Association between Serum Selenium Concentrations and Levels of Proinflammatory and Profibrotic Cytokines-Interleukin-6 and Growth Differentiation Factor-15, in Patients with Alcoholic Liver Cirrhosis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14040437. [PMID: 28430124 PMCID: PMC5409638 DOI: 10.3390/ijerph14040437] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 04/14/2017] [Accepted: 04/16/2017] [Indexed: 12/12/2022]
Abstract
According to some authors, serum selenium levels are strongly associated with the severity of liver diseases, including liver cirrhosis. The aim of this study was to determine the relationship between the concentration of selenium and pro-inflammatory and profibrotic cytokines—interleukin-6 (IL-6) and growth differentiation factor 15 (GDF-15) in patients with alcoholic liver cirrhosis. The parameters studied were determined in the serum of 99 patients with alcoholic liver cirrhosis divided based on the severity of disease according to the Child-Turcotte-Pugh criteria. In patients with liver cirrhosis, the serum selenium concentration was statistically lower, whereas serum IL-6 and GDF-15 concentrations were higher than those in the control group. Moreover, the concentration of selenium negatively correlated with the levels of GDF-15 and IL-6. The above results may indicate a role of selenium deficiency in the pathogenesis and progression of alcoholic liver disease.
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Affiliation(s)
- Andrzej Prystupa
- Department of Internal Medicine, Medical University of Lublin, Staszica 16, 20-081 Lublin, Poland.
| | - Paweł Kiciński
- Department of Family Medicine, Medical University of Lublin, Staszica 11, 20-081 Lublin, Poland.
| | - Dorota Luchowska-Kocot
- Department of Medical Chemistry, Medical University of Lublin, Chodźki 4a (Collegium Pharmaceuticum), 20-093 Lublin, Poland.
| | - Anna Błażewicz
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4a (Collegium Pharmaceuticum), 20-093 Lublin, Poland.
| | - Jarosław Niedziałek
- Individual Medical Practice, Lublin, Ludwika Hirszfelda 5/11, 20-092 Lublin, Poland.
| | - Grzegorz Mizerski
- Department of Family Medicine, Medical University of Lublin, Staszica 11, 20-081 Lublin, Poland.
| | - Mariusz Jojczuk
- Department of Trauma Surgery and Emergency Medicine, Medical University of Lublin, Staszica 16, 20-081 Lublin, Poland.
| | - Andrzej Ochal
- Department of Trauma Surgery and Emergency Medicine, Medical University of Lublin, Staszica 16, 20-081 Lublin, Poland.
| | - Jarosław J Sak
- Department of Ethics and Human Philosophy, Medical University of Lublin, Staszica 4/6 (Collegium Maximum), 20-059 Lublin, Poland.
| | - Wojciech Załuska
- Department of Nephrology, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland.
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