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Wang Y, Wu M, Zheng H, Wu D, Yao P, Li W, Jin K, Yu X. Biomanufacture of L-homoserine lactone building block: A strategy for preparing γ-substituted L-amino acids by modular reaction. Enzyme Microb Technol 2024; 176:110411. [PMID: 38377656 DOI: 10.1016/j.enzmictec.2024.110411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/26/2024] [Accepted: 02/03/2024] [Indexed: 02/22/2024]
Abstract
A strain high-performance of esterase producing bacteria was screened from soil, which could selectively hydrolyze D-homoserine lactone from its racemate to achieve the resolution of L- homoserine lactone with more than 99% e.e. in 48% yield. L-homoserine lactone building block was then converted to L-α-amino-γ-bromobutyronic acid chiral blocks, which reacted with various nucleophilic reagent modules could to be applied to prepare L-γ- substituted α-amino acids such as L-selenomethionine, L-methionine, L-glufosinate and L-selenocystine. Its advantages included high selectivity of biocatalytic resolution reactions, high optical purity of products, racemic recycle of D-substrates and modular reaction, which simplified the production process of these products and highlighted the power of biological manufacturing.
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Affiliation(s)
- Yuguang Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China; Jiangxi XinzhongyeTea Industry Biotechnology Co., Ltd, China; Zhejiang Caihe Biotechnology Co., Ltd, China
| | - Mengjing Wu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Huifang Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Dongmei Wu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Panpan Yao
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Wenjing Li
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Kexin Jin
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Xinjun Yu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China.
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Filippini T, Urbano T, Grill P, Malagoli C, Ferrari A, Marchesi C, Natalini N, Michalke B, Vinceti M. Human serum albumin-bound selenium (Se-HSA) in serum and its correlation with other selenium species. J Trace Elem Med Biol 2023; 79:127266. [PMID: 37499550 DOI: 10.1016/j.jtemb.2023.127266] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/23/2023] [Accepted: 07/20/2023] [Indexed: 07/29/2023]
Abstract
INTRODUCTION Selenium (Se) is a trace element with different toxicological and nutritional properties according to its chemical forms. Among the wide range of selenium species, human serum albumin-bound selenium (Se-HSA) has still uncertain composition in terms of organic or inorganic selenium species. This study aimed at investigating the relation between Se-HSA levels with total selenium and the specific organic and inorganic selenium species. METHODS We determined levels of total selenium and selenium species in serum of participants enrolled in two populations of the Emilia-Romagna region, in Northern Italy. Anion exchange chromatography coupled with inductively coupled plasma dynamic reaction cell mass spectrometry was used as quantification method. Correlations between Se-HSA and the other selenium compounds were analyzed using linear regression and restricted cubic spline regression models, adjusted for potential confounders. RESULTS The first cohort comprised 50 participants (men/women: 26/24) with median (interquartile range, IQR) age 50 (55-62) years, while the second was composed of 104 participants (M/W: 50/54), median (IQR) age 48 (44-53) years. Median (IQR) levels of total selenium were 118.5 (109-136) µg/L and 116.5 (106-128) µg/L, respectively, while Se-HSA was 25.5 µg/L (16.2-51.5) and 1.1 (0.03-3.1) µg/L, respectively. In both populations, Se-HSA was positively associated with inorganic selenium species. Conversely, Se-HSA was inversely associated with organic selenium, especially with selenoprotein P-bound-Se (Se-SELENOP) and less strongly with selenomethionine-bound-Se (Se-Met), while the relation was null or even positive with other organic species. Evaluation of non-linear trends showed a substantially positive association with inorganic selenium, particularly selenite, until a concentration of 30 µg/L, above which a plateau was reached. The association with Se-SELENOP was inverse and strong until 100 µg/L, while it was almost null at higher levels. CONCLUSIONS Our findings seem to indicate that Se-HSA incorporates more selenium when circulating levels of inorganic compounds are higher, thus supporting its mainly inorganic nature, particularly at high circulating levels of selenite.
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Affiliation(s)
- Tommaso Filippini
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; School of Public Health, University of California Berkeley, Berkeley, CA, USA.
| | - Teresa Urbano
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Peter Grill
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich - German Research Center for Environmental Health, Neuherberg, Germany
| | - Carlotta Malagoli
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Angela Ferrari
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Cristina Marchesi
- Head Office, Azienda USL, IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | | | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich - German Research Center for Environmental Health, Neuherberg, Germany
| | - Marco Vinceti
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
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Zhang M, Li X, Cui X, Li R, Ma Z, Gao X. Selenomethionine promotes ANXA2 phosphorylation for proliferation and protein synthesis of myoblasts and skeletal muscle growth. J Nutr Biochem 2023; 115:109277. [PMID: 36739096 DOI: 10.1016/j.jnutbio.2023.109277] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
Selenomethionine (Se-Met) has many beneficial effects on higher animals and human, and can regulate cellular physiology through distinct signaling pathways. However, the role and molecular mechanism of Se-Met in skeletal muscle growth remains unclear. In this study, we observed the effects of Se-Met on C2C12 myoblasts and skeletal muscle growth of mice, and explored the corresponding molecular mechanism. Se-Met affected proliferation and protein synthesis of C2C12 myoblasts in a hormesis type of relationship, and had an optimal stimulatory effect at 50 µM concentration. Se-Met also affected mTOR, ANXA2, and PKCα phosphorylation in the same manner. ANXA2 knockdown blocked the stimulation of Se-Met on cell proliferation and protein synthesis and inhibition of Se-Met on autophagy of C2C12 myoblasts. Western blotting analysis showed that PI3K inhibition blocked the stimulation of Se-Met on mTOR phosphorylation. ANXA2 knockdown further blocked the stimulation of Se-Met on PI3K and mTOR phosphorylation. Point mutation experiment showed that ANXA2 mediated the stimulation of Se-Met on the PI3K-mTOR signaling through phosphorylation at Ser26. PKCα interacted with ANXA2, and PKCα knockdown blocked the stimulation of Se-Met on ANXA2 phosphorylation at Ser26. Se-Met addition (7.5mg/kg diet, 4 weeks) increased mouse carcass weight, promoted gastrocnemius skeletal muscle growth and ANXA2 and mTOR phosphorylation in this tissue. Collectively, our findings reveal that Se-Met can promote proliferation and protein synthesis of myoblasts and skeletal muscle growth through ANXA2 phosphorylation.
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Affiliation(s)
- Minghui Zhang
- College of Animal Science, Yangtze University, Jingmi Road 88, Jingzhou, 434025, China; College of Life Science, Northeast Agricultural University, Changjiang Road 600, Xiangfang District, Harbin, 150030, China
| | - Xueying Li
- College of Animal Science, Yangtze University, Jingmi Road 88, Jingzhou, 434025, China; College of Life Science, Northeast Agricultural University, Changjiang Road 600, Xiangfang District, Harbin, 150030, China
| | - Xu Cui
- College of Animal Science, Yangtze University, Jingmi Road 88, Jingzhou, 434025, China; College of Life Science, Northeast Agricultural University, Changjiang Road 600, Xiangfang District, Harbin, 150030, China
| | - Rui Li
- College of Animal Science, Yangtze University, Jingmi Road 88, Jingzhou, 434025, China
| | - Zonghua Ma
- College of Life Science, Northeast Agricultural University, Changjiang Road 600, Xiangfang District, Harbin, 150030, China
| | - Xuejun Gao
- College of Animal Science, Yangtze University, Jingmi Road 88, Jingzhou, 434025, China
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Dávila-Vega JP, Gastelum-Hernández AC, Serrano-Sandoval SN, Serna-Saldívar SO, Guitiérrez-Uribe JA, Milán-Carrillo J, Martínez-Cuesta MC, Guardado-Félix D. Metabolism and Anticancer Mechanisms of Selocompounds: Comprehensive Review. Biol Trace Elem Res 2022:10.1007/s12011-022-03467-1. [PMID: 36342630 DOI: 10.1007/s12011-022-03467-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 10/26/2022] [Indexed: 11/09/2022]
Abstract
Selenium (Se) is an essential micronutrient with several functions in cellular and molecular anticancer processes. There is evidence that Se depending on its chemical form and the dosage use could act as a modulator in some anticancer mechanisms. However, the metabolism of organic and inorganic forms of dietary selenium converges on the main pathways. Different selenocompounds have been reported to have crucial roles as chemopreventive agents, such as antioxidant activity, activation of apoptotic pathways, selective cytotoxicity, antiangiogenic effect, and cell cycle modulation. Nowadays, great interest has arisen to find therapies that could enhance the antitumor effects of different Se sources. Herein, different studies are reported related to the effects of combinatorial therapies, where Se is used in combination with proteins, polysaccharides, chemotherapeutic agents or as nanoparticles. Another important factor is the presence of single nucleotide polymorphisms in genes related to Se metabolism or selenoprotein synthesis which could prevent cancer. These studies and mechanisms show promising results in cancer therapies. This review aims to compile studies that have demonstrated the anticancer effects of Se at molecular levels and its potential to be used as chemopreventive and in cancer treatment.
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Affiliation(s)
- Juan Pablo Dávila-Vega
- Escuela de Ingeniería Y Ciencias, Centro de Biotecnología FEMSA, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849, Monterrey, NL, México
- Tecnologico de Monterrey, The Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849, Monterrey, NL, Mexico
| | - Ana Carolina Gastelum-Hernández
- Facultad de Ciencias Químico Biológicas, Programa Regional de Posgrado en Biotecnología, Universidad Autónoma de Sinaloa, FCQB-UAS, AP 1354, CP 80000, Culiacán, Sinaloa, Mexico
| | - Sayra N Serrano-Sandoval
- Escuela de Ingeniería Y Ciencias, Centro de Biotecnología FEMSA, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849, Monterrey, NL, México
- Tecnologico de Monterrey, The Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849, Monterrey, NL, Mexico
| | - Sergio O Serna-Saldívar
- Escuela de Ingeniería Y Ciencias, Centro de Biotecnología FEMSA, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849, Monterrey, NL, México
| | - Janet A Guitiérrez-Uribe
- Tecnologico de Monterrey, The Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849, Monterrey, NL, Mexico
- Escuela de Ingeniería Y Ciencias, Tecnologico de Monterrey, Reserva Territorial Atlixcáyotl, Campus Puebla, Vía Atlixcáyotl 5718, C.P. 72453, Puebla, Pue, México
| | - Jorge Milán-Carrillo
- Tecnologico de Monterrey, The Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849, Monterrey, NL, Mexico
| | - M Carmen Martínez-Cuesta
- Department of Food Biotechnology and Microbiology, Instituto de Investigación en Ciencias de La Alimentación, CIAL (CSIC-UAM), Nicolás Cabrera 9, 28049, Madrid, Spain
| | - Daniela Guardado-Félix
- Escuela de Ingeniería Y Ciencias, Centro de Biotecnología FEMSA, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849, Monterrey, NL, México.
- Tecnologico de Monterrey, The Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849, Monterrey, NL, Mexico.
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Selenium Supplementation in Pregnant Women with Autoimmune Thyroiditis: A Practical Approach. Nutrients 2022; 14:nu14112234. [PMID: 35684035 PMCID: PMC9183010 DOI: 10.3390/nu14112234] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/23/2022] [Accepted: 05/23/2022] [Indexed: 01/27/2023] Open
Abstract
Selenium (Se) is an essential trace element with antioxidant and anti-inflammatory properties and a pivotal role in thyroid metabolism. Ensuring a sufficient Se supply is possible via a balanced, wholesome diet; however, Se content in foods may be different throughout geographical areas. Se supplementation is expected to improve inflammatory status in patients with autoimmune thyroiditis, especially in those with high activity, and has been demonstrated as effective in reducing the thyroid peroxidase antibodies titer. Se status seems to affect thyroid function in pregnancy, which prompts the potential role of Se supplementation in such patients. Few clinical trials have investigated the effectiveness of Se supplementation in pregnant women with thyroiditis, and their results suggest the safety and effectiveness of this element in reducing autoantibody levels and preventing postpartum thyroiditis development, although limited. Hence, more robust evidence is needed to confirm these data. The current study aims to summarize published data on the relationship between Se and thyroid status in pregnant women with thyroiditis and the potential use of Se. Moreover, an algorithm for Se supplementation is proposed for pregnant women with thyroiditis to help endocrinologists in daily clinical practice to consider Se status.
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Hadrup N, Ravn-Haren G. Absorption, distribution, metabolism and excretion (ADME) of oral selenium from organic and inorganic sources: A review. J Trace Elem Med Biol 2021; 67:126801. [PMID: 34091241 DOI: 10.1016/j.jtemb.2021.126801] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/26/2021] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Selenium is a trace element traditionally ingested either in its organic form via food or in its inorganic form through nutritional supplements, while selenium formulated as nanoparticles is a putative long-acting alternative. To understand the physiology and toxicology of the different selenium formulations, it is important to determine how their selenium content is absorbed, distributed, metabolised and excreted; therefore, we reviewed their biokinetics following oral exposure. METHODS We retrieved and reviewed the literature on the absorption, distribution, metabolism, and excretion of oral exposure to different forms of selenium. RESULTS Selenium in both the organic form (containing carbon to selenium chemical bonds) and the inorganic form is absorbed into the blood in humans. The mean normal blood level of many studies was 139 μg/L. There are indications that selenium from organic sources is more bioavailable than selenium from inorganic sources. Selenium is distributed throughout the body, including in breast milk. The elimination of selenium mainly involves the faecal and urinary pathways, whereas breath, saliva and hair are minor contributors. Urinary metabolites include trimethylselenium ions, selenosugars and Se-methylselenoneine. CONCLUSION Selenium is absorbed to a high extent, and selenium from organic sources is more bioavailable than from inorganic sources. Selenium, as expected as an essential trace element, is distributed throughout the body. Selenium is extensively metabolised, and various excretion metabolites have been identified in both urine and breath, while some selenium is also excreted via faeces.
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Affiliation(s)
- Niels Hadrup
- The National Research Centre For The Working Environment, Lersø Park Alle 105, DK-2100, Denmark.
| | - Gitte Ravn-Haren
- National Food Institute, Technical University of Denmark, Kemitorvet, DK 2800 Kgs, Lyngby, Denmark.
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Bahtiyar N, Yoldas A, Abbak Y, Dariyerli N, Toplan S. Erythroid microRNA and oxidant status alterations in l-thyroxine-induced hyperthyroid rats: effects of selenium supplementation. Minerva Endocrinol (Torino) 2021; 46:107-115. [PMID: 33779112 DOI: 10.23736/s2724-6507.20.03154-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Hypermetabolic state in hyperthyroidism causes oxidative stress. Erythrocytes are the cells that are involved in oxidant equilibrium in an organism and contain microRNA (miRNA). Selenium, which is an essential element for an organism, has antioxidant properties. The present study was aimed at investigating the effects of selenium supplementation in hyperthyroidism, on pro- and antioxidant enzymes, and miRNA (miR-144 and miR-451) expressions in the erythrocytes. METHODS Forty-eight Sprague-Dawley male rats were divided into 6 groups; control group, group fed with 0.5 mg/kg sodium selenite; group fed with 1 mg/kg sodium selenite; hyperthyroid group; hyperthyroid group fed with 0.5 mg/kg sodium selenite; and hyperthyroid group fed with 1 mg/kg sodium selenite. Malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH), miR-144, and miR-451 expression levels were studied in erythrocyte hemolysates. RESULTS MDA levels were increased in the hyperthyroid group compared to the control group, and the group fed with 0.5 mg/kg sodium selenite (P<0.001 and P<0.01, respectively). GSH levels were increased in the hyperthyroid group and the hyperthyroid group fed with 0.5 mg/kg sodium selenite compared to the control group (P<0.001, and P<0.05, respectively). GSH levels of the hyperthyroid group fed with 1 mg/kg sodium selenite were decreased when compared with the hyperthyroid group (P<0.05). SOD levels of the hyperthyroid group were increased when compared with the control group (P<0.05, and P<0.001, respectively). Similarly, SOD levels of the hyperthyroid group fed with 1 mg/kg sodium selenite were lower than the hyperthyroid group (P<0.01). miR-144 values were increased in the hyperthyroid group and the hyperthyroid group fed with 0.5 mg/kg sodium selenite compared to the control group (P<0.001, and P<0.05 respectively). miR-451 expression was increased significantly in the hyperthyroid group compared to the control group (P<0.05). CONCLUSIONS Our findings showed that MDA, SOD and GSH levels increased, and miR-144 and miR-451 expressions changed in hyperthyroidism. Supplementation of 1 mg/kg sodium selenite was more effective than 0.5 mg/kg sodium selenite for normalizing the MDA, GSH, SOD, and miRNA levels in the hyperthyroid group.
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Affiliation(s)
- Nurten Bahtiyar
- Department of Biophysics, University Hospital of Cerrahpasa, Istanbul, Turkey -
| | - Aysun Yoldas
- Department of Biophysics, University Hospital of Cerrahpasa, Istanbul, Turkey
| | - Yavuz Abbak
- Department of Biophysics, University Hospital of Cerrahpasa, Istanbul, Turkey
| | - Nuran Dariyerli
- Department of Physiology, University Hospital of Cerrahpasa, Istanbul, Turkey
| | - Selmin Toplan
- Department of Biophysics, University Hospital of Cerrahpasa, Istanbul, Turkey
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Astolfi ML, Vitali M, Marconi E, Martellucci S, Mattei V, Canepari S, Protano C. Urinary Mercury Levels and Predictors of Exposure among a Group of Italian Children. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249225. [PMID: 33321748 PMCID: PMC7763174 DOI: 10.3390/ijerph17249225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 12/30/2022]
Abstract
Urinary mercury (Hg) levels are suitable to assess long-term exposure to both elemental and inorganic Hg. In this study, the urinary Hg levels of 250 children (aged 6–11 years) from three areas with different anthropogenic impacts in the Rieti province, central Italy, were assessed. The Hg concentrations were in the range of 0.04–2.18 µg L−1 with a geometric mean equal to 0.18 µg L−1 [95% confidence interval (CI), 0.17–0.20 µg L−1] or 0.21 µg g−1 creatinine (95% CI, 0.19–0.23 µg g−1 creatinine), and a reference value calculated as 95th percentile of 0.53 µg L−1 (95% CI, 0.44–0.73 µg L−1) or 0.55 µg g−1 creatinine (95% CI, 0.50–0.83 µg g−1 creatinine). In all cases, urinary Hg data were below the HBM-I values (7 µg L−1 or 5 µg g−1 creatinine) established for urine, while the 95th percentile was above the German Human Biomonitoring Commission’s RV95 (0.4 µg L−1) set for children without amalgam fillings. A significant correlation (p < 0.05) was found between creatinine-corrected results and residence area, with higher urinary Hg levels in children living in the industrial area. Multiple linear regression analysis showed that creatinine was the main predictor of urinary Hg.
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Affiliation(s)
- Maria Luisa Astolfi
- Department of Chemistry, “Sapienza” University of Rome, 00185 Rome, Italy;
- Correspondence: ; Tel.: +39-06-4991-3384
| | - Matteo Vitali
- Department of Public Health and Infectious Diseases, “Sapienza” University of Rome, 00185 Rome, Italy; (M.V.); (E.M.); (C.P.)
| | - Elisabetta Marconi
- Department of Public Health and Infectious Diseases, “Sapienza” University of Rome, 00185 Rome, Italy; (M.V.); (E.M.); (C.P.)
| | - Stefano Martellucci
- Biomedicine and Advanced Technologies Rieti Center, “Sabina Universitas”, 02100 Rieti, Italy; (S.M.); (V.M.)
| | - Vincenzo Mattei
- Biomedicine and Advanced Technologies Rieti Center, “Sabina Universitas”, 02100 Rieti, Italy; (S.M.); (V.M.)
| | - Silvia Canepari
- Department of Chemistry, “Sapienza” University of Rome, 00185 Rome, Italy;
| | - Carmela Protano
- Department of Public Health and Infectious Diseases, “Sapienza” University of Rome, 00185 Rome, Italy; (M.V.); (E.M.); (C.P.)
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Astolfi ML, Pietris G, Mazzei C, Marconi E, Canepari S. Element Levels and Predictors of Exposure in the Hair of Ethiopian Children. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17228652. [PMID: 33233360 PMCID: PMC7700284 DOI: 10.3390/ijerph17228652] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/07/2020] [Accepted: 11/19/2020] [Indexed: 01/29/2023]
Abstract
Children's development and health may be affected by toxic heavy metal exposure or suboptimal essential element intake. This study aimed to provide updated information regarding the concentrations of 41 elements in children's hair (aged under 18) living in a rural area of the Benishangul-Gumuz region, Ethiopia. The highest average levels (as a geometric mean) for toxic heavy metals were obtained for Al (1 mg kg-1), Pb (3.1 mg kg-1), and Ni (1.2 mg kg-1), while the lowest concentrations among the essential elements were found for Co (0.32 mg kg-1), Mo (0.07 mg kg-1), Se (0.19 mg kg-1), and V (0.8 mg kg-1). Hair analysis was combined with a survey to evaluate relationships and variations among subgroups and potential metal exposure predictors. Females showed significantly higher concentrations for most hair elements, excluding Zn, than males, and the 6-11 years age group reported the highest levels for Be, Ce, Co, Fe, La, Li, Mo, and Na. The main predictors of exposure to toxic elements were fish consumption for Hg and drinking water for Ba, Be, Cs, Li, Ni, Tl, and U. The data from this study can be used to develop prevention strategies for children's health and protection in developing countries.
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Affiliation(s)
- Maria Luisa Astolfi
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy;
- Correspondence: ; Tel.: +39-064-991-3384
| | - Georgios Pietris
- Department of General Surgery, Thoracic Diseases General Hospital Sotiria of Athens, Mesogion 152, 115 27 Athens, Greece;
| | - Corrado Mazzei
- Canon Toshiba Medical Systems s.r.l., Via Canton 115, I-00144 Rome, Italy;
| | - Elisabetta Marconi
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy;
| | - Silvia Canepari
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy;
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Abstract
Selenium (Se), an essential trace element, is inserted as selenocysteine into an array of functional proteins and forms the core of various enzymes that play a cardinal role in antioxidant defense mechanisms, in redox regulation, and in thyroid hormone metabolism. Variations in plasma Se are due to nutritional habits, geographic and ethnic differences, and probably to genetic polymorphisms, the latter still to be conclusively established. Se concentrations were reported to be low in women of reproductive age in the UK, decreasing further during pregnancy, this resulting in low plasma and placental antioxidant enzyme activities. Since low serum Se levels have been found in women with preeclampsia, it has been hypothesized that low maternal Se status during early gestation may be an indicator of preterm birth. Moreover, it is documented that Se administration during pregnancy tendentially reduced the markers of thyroid autoimmunity and the incidence of maternal hypothyroidism in the postpartum period. Importantly, low Se levels in pregnant women affect fetal growth and augment the risk of delivering a small-for-gestational age infant by reducing placental antioxidant defense, while low Se in the third trimester is thought to indicate increased demands by the placenta, an issue which requires further confirmation. There is evidently a need for double-blind, placebo-controlled studies to better determine the efficacy and safety of Se supplementation in pregnancy at high risk for complications, and for measurement of Se levels or of selenoprotein P, the most reliable parameter of Se status, particularly in selenopenic regions.
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Affiliation(s)
- Leonidas H Duntas
- Evgenideion Hospital, Unit of Endocrinology, Metabolism and Diabetes, Thyroid Section, University of Athens, 20 Papadiamantopoulou Str, 11528 Athens, Greece
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Ruggeri RM, D'Ascola A, Vicchio TM, Campo S, Gianì F, Giovinazzo S, Frasca F, Cannavò S, Campennì A, Trimarchi F. Selenium exerts protective effects against oxidative stress and cell damage in human thyrocytes and fibroblasts. Endocrine 2020; 68:151-162. [PMID: 31889242 DOI: 10.1007/s12020-019-02171-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 12/21/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE Selenium, incorporated into specific seleno-enzymes, is essential to proper thyroid function and protect cells from oxidative damage induced by H2O2 during thyroid hormone synthesis. Several studies indicated that low selenium levels are associated with thyroid autoimmunity and related disorders, but real effectiveness of selenium supplementation in such diseases is still controversial. We evaluated the effect of selenium on oxidative damage in human thyrocytes and thyroid fibroblasts in vitro. METHODS To induce oxidative stress, primary cultures were exposed to H2O2, in the presence or the absence of selenium, as either selenomethionine or selenite. We performed the following assays: cell viability, caspase-3 activity, BCL-2/BAX gene expression, DNA fragmentation, malondialdehyde levels, and glutathione peroxidase (GPx) activity measurements. RESULTS Thyrocytes and thyroid fibroblasts exposed to H2O2 and preincubated with both selenocompounds displayed a significant dose-dependent increase in cell viability compared to cells incubated with H2O2 alone. Pretreatment with selenomethionine and selenite significantly reduced caspase-3 activity and BAX mRNA levels and increased BCL-2 mRNA levels in a dose-dependent manner. Accordingly, H2O2 induced a diffuse pattern of DNA degradation and an increase in malondialdehyde levels, which was prevented by the pretreatment with both selenomethionine and selenite. Both selenocompounds induced an increase in GPx activity, suggesting that these protective effects may be, almost in part, mediated by these selenoproteins. CONCLUSION In human thyrocytes and fibroblasts in vitro, selenium exerts protective effects against H2O2 in a dose-dependent manner, being selenite effective at lower doses than selenomethionine.
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Affiliation(s)
- Rosaria M Ruggeri
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy.
- Endocrine Unit, University Hospital AOU Policlinico G. Martino, Messina, Italy.
| | - Angela D'Ascola
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Teresa M Vicchio
- Endocrine Unit, University Hospital AOU Policlinico G. Martino, Messina, Italy
| | - Salvatore Campo
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Fiorenza Gianì
- Department of Clinical and Experimental Medicine, Endocrinology Unit, University of Catania, Catania, Italy
| | | | - Francesco Frasca
- Department of Clinical and Experimental Medicine, Endocrinology Unit, University of Catania, Catania, Italy
| | - Salvatore Cannavò
- Endocrine Unit, University Hospital AOU Policlinico G. Martino, Messina, Italy
- Department of Human Pathology DETEV, University of Messina, Messina, Italy
| | - Alfredo Campennì
- Department of Biomedical and Dental Sciences and Morfo-Functional Images, Unit of Nuclear Medicine, University of Messina, Messina, Italy
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13
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Astolfi ML, Protano C, Marconi E, Massimi L, Piamonti D, Brunori M, Vitali M, Canepari S. Biomonitoring of Mercury in Hair among a Group of Eritreans (Africa). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17061911. [PMID: 32183479 PMCID: PMC7143335 DOI: 10.3390/ijerph17061911] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/11/2020] [Accepted: 03/14/2020] [Indexed: 12/21/2022]
Abstract
Small-scale or artisanal mining, using gold-mercury amalgamation to extract gold from ore, is a significant source of exposure for the workers and nearby populations. Few studies on hair mercury (Hg) have been conducted in Africa despite the fact that Africa has several gold deposits. No studies have been conducted in Eritrea that is one of the emerging gold producing countries in Africa. The aim of the study was to assess the Hg concentration in hair samples (n = 120) of a population living in Asmara, capital of Eritrea, and to evaluate the influence of some factors on the Hg levels in hair. Information on age, height, weight, occupation, smoking and fish consumption of participants were collected via questionnaire. Hair Hg concentration was significantly higher among women compared to men (p < 0.001) and among women preparing spicy products in Medeber market compared to those who did other jobs (p = 0.010). These results highlight the need for routine biomonitoring surveys and for health promotion campaigns devoted to local decision makers and workers.
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Affiliation(s)
- Maria Luisa Astolfi
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy; (L.M.); (S.C.)
- Correspondence: ; Tel.: +39-0649913384
| | - Carmela Protano
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy; (C.P.); (E.M.); (M.V.)
| | - Elisabetta Marconi
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy; (C.P.); (E.M.); (M.V.)
| | - Lorenzo Massimi
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy; (L.M.); (S.C.)
| | - Daniel Piamonti
- Department of Cardiovascular, Respiratory, Nephrology, Anaesthesiology and Geriatric Science, Sapienza University, Viale del Policlinico 155, I-00161 Rome, Italy; (D.P.); (M.B.)
| | - Marco Brunori
- Department of Cardiovascular, Respiratory, Nephrology, Anaesthesiology and Geriatric Science, Sapienza University, Viale del Policlinico 155, I-00161 Rome, Italy; (D.P.); (M.B.)
| | - Matteo Vitali
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy; (C.P.); (E.M.); (M.V.)
| | - Silvia Canepari
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy; (L.M.); (S.C.)
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14
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Quantitative proteomic analysis reveals that the Rap1/MAPK/ERK pathway is inhibited through selenomethionine strengthening antioxidant activity. Biometals 2019; 33:45-64. [PMID: 31834558 DOI: 10.1007/s10534-019-00229-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/28/2019] [Indexed: 01/21/2023]
Abstract
To investigate the influence on the proteome of chicken skeletal muscles of Selenomethionine (SeMet) use, 36 chicks were fed with SeMet feeding for 35 days. A total of 72 1-day old broiler chicks were randomly allocated into two groups (n = 36/group): the control group (C group), the SeMet supplemented group (SeMet group). The Selenium (Se) concentrations of skeletal muscles from the chicks with basal diet (negative control group) and SeMet feeding were found to be 0.01 mg/kg and 0.40 mg/kg, respectively. The skeletal muscles from the two groups were investigated using isobaric Tags for Relative and Absolute Quantitation (iTRAQ), coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis. This proteomic analysis identified proteins that were differentially expressed between the two groups. A total of 3564 proteins from the SeMet and the control (C) groups at 35 days were analyzed. 86 proteins were found by iTRAQ to be differentially expressed in the SeMet group, including 38 up-regulated proteins and 48 down-regulated proteins. These differential proteins were later identified as being mainly involved in antioxidant and enzyme-regulating activities. Fluorescent quantitative PCR(qPCR) and Western blot analyse proved to be consistent with the results of iTRAQ identification. The differentially expressed proteins (DEPs) identified in our work could be specific biomarkers related to SeMet intake in chicks. SeMet intake may strengthen antioxidant activity through Rap1/mitogen-activated protein kinases (MAPK)/extracellular signal-regulated kinase (ERK) signal pathways.
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15
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Mantovani G, Isidori AM, Moretti C, Di Dato C, Greco E, Ciolli P, Bonomi M, Petrone L, Fumarola A, Campagna G, Vannucchi G, Di Sante S, Pozza C, Faggiano A, Lenzi A, Giannetta E. Selenium supplementation in the management of thyroid autoimmunity during pregnancy: results of the "SERENA study", a randomized, double-blind, placebo-controlled trial. Endocrine 2019; 66:542-550. [PMID: 31129812 DOI: 10.1007/s12020-019-01958-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 05/12/2019] [Indexed: 12/15/2022]
Abstract
PURPOSE Selenium is frequently in nutraceuticals for pregnancy, given its role on fertility and thyroid metabolism. However, most evidence rise from non-controlled studies. We aimed to evaluate the protective effect of selenium against thyroid autoimmunity during and after pregnancy. METHODS A multicenter, randomized, double-blind, placebo-controlled trial was performed and promoted by the Young Italian Endocrinologists Group (EnGioI)-Italian Society of Endocrinology. Forty-five women with thyroiditis in pregnancy were enrolled and randomly assigned to L-selenomethionine (L-Se-Met) 83 mcg/day or placebo (PLB) and evaluated at 10 ± 2 (T1), 36 ± 2 weeks of gestation (T2) and 6 months after delivery (postpartum, PP). RESULTS We measured a significant reduction of autoantibodies after pregnancy in L-Se-Met group [at PP: TgAb 19.86 (11.59-52.60), p < 0.01; TPOAb 255.00 (79.00-292.00), p < 0.01], and an antibodies titer's rebound in PLB group (TgAb 151.03 ± 182.9, p < 0.01; TPOAb 441.28 ± 512.18, p < 0.01). A significant increase in selenemia was measured in L-Se-Met group at T2 (91.33 ± 25.49; p < 0.01) and PP (93.55 ± 23.53; p = 0.02). Two miscarriage occurred in PLB. No differences were found in thyroid volume, echogenicity, quality of life, maternal/fetal complications. CONCLUSIONS SERENA study demonstrated a beneficial effect of L-Se-Met supplementation on autoantibody titer during pregnancy and on postpartum thyroiditis recurrence.
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Affiliation(s)
- G Mantovani
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Endocrine Unit - Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - A M Isidori
- Department of Experimental Medicine, "Sapienza" University of Rome, Rome, Italy
| | - C Moretti
- Department of Internal Medicine, "Tor Vergata" University of Rome, Rome, Italy
| | - C Di Dato
- Department of Experimental Medicine, "Sapienza" University of Rome, Rome, Italy
| | - E Greco
- Reproductive Medicine and Biology Center, "European Hospital" of Rome, Rome, Italy
| | - P Ciolli
- Department of Gynecological Sciences - Obstetric and Urological Sciences, "Sapienza" University of Rome, Rome, Italy
| | - M Bonomi
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - L Petrone
- Department of Endocrinology, Careggi University Hospital, Florence, Italy
| | - A Fumarola
- Department of Experimental Medicine, "Sapienza" University of Rome, Rome, Italy
| | - G Campagna
- Department of Experimental Medicine, "Sapienza" University of Rome, Rome, Italy
| | - G Vannucchi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Endocrine Unit - Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - S Di Sante
- Department of Experimental Medicine, "Sapienza" University of Rome, Rome, Italy
| | - C Pozza
- Department of Experimental Medicine, "Sapienza" University of Rome, Rome, Italy
| | - A Faggiano
- Thyroid and Parathyroid Surgery Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione G. Pascale", IRCCS, Naples, Italy
| | - A Lenzi
- Department of Experimental Medicine, "Sapienza" University of Rome, Rome, Italy
| | - E Giannetta
- Department of Experimental Medicine, "Sapienza" University of Rome, Rome, Italy.
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16
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Piacentini D, Falasca G, Canepari S, Massimi L. Potential of PM-selected components to induce oxidative stress and root system alteration in a plant model organism. ENVIRONMENT INTERNATIONAL 2019; 132:105094. [PMID: 31484097 DOI: 10.1016/j.envint.2019.105094] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 08/06/2019] [Accepted: 08/10/2019] [Indexed: 06/10/2023]
Abstract
Over the last years, various acellular assays have been used for the evaluation of the oxidative potential (OP) of particular matter (PM) to predict PM capacity to generate reactive oxygen (ROS) and nitrogen (RNS) species in biological systems. However, relationships among OP and PM toxicological effects on living organisms are still largely unknown. This study aims to assess the effects of atmospheric PM-selected components (brake dust - BD, pellet ash - PA, road dust - RD, certified urban dust NIST1648a - NIST, soil dust - S, coke dust - C and Saharan dust - SD) on the model plant A. thaliana development, with emphasis on their capacity to induce oxidative stress and root morphology alteration. Before growing A. thaliana in the presence of the PM-selected components, each atmospheric dust has been chemically characterized and tested for the OP through dithiothreitol (DTT), ascorbic acid (AA) and 2',7'-dichlorofluorescin (DCFH) assays. After the exposure, element bioaccumulation in the A. thaliana seedlings, i.e., in roots and shoots, was determined and both morphological and oxidative stress analyses were performed in roots. The results indicated that, except for SD and S, all the tested dusts affected A. thaliana root system morphology, with the strongest effects in the presence of the highest OPs dusts (BD, PA and NIST). Principal component analysis (PCA) revealed correlations among OPs of the dusts, element bioaccumulation and root morphology alteration, identifying the most responsible dust-associated elements affecting the plant. Lastly, histochemical analyses of NO and O2- content and distribution confirmed that BD, PA and NIST induce oxidative stress in A. thaliana, reflecting the high OPs of these dusts and ultimately leading to cell membrane lipid peroxidation.
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Affiliation(s)
- Diego Piacentini
- Department of Environmental Biology, Sapienza University of Rome, P. le Aldo Moro, 5, Rome 00185, Italy
| | - Giuseppina Falasca
- Department of Environmental Biology, Sapienza University of Rome, P. le Aldo Moro, 5, Rome 00185, Italy
| | - Silvia Canepari
- Department of Chemistry, Sapienza University of Rome, P. le Aldo Moro, 5, Rome 00185, Italy
| | - Lorenzo Massimi
- Department of Chemistry, Sapienza University of Rome, P. le Aldo Moro, 5, Rome 00185, Italy.
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17
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Astolfi ML, Protano C, Marconi E, Piamonti D, Massimi L, Brunori M, Vitali M, Canepari S. Simple and rapid method for the determination of mercury in human hair by cold vapour generation atomic fluorescence spectrometry. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104186] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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18
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Astolfi ML, Protano C, Schiavi E, Marconi E, Capobianco D, Massimi L, Ristorini M, Baldassarre ME, Laforgia N, Vitali M, Canepari S, Mastromarino P. A prophylactic multi-strain probiotic treatment to reduce the absorption of toxic elements: In-vitro study and biomonitoring of breast milk and infant stools. ENVIRONMENT INTERNATIONAL 2019; 130:104818. [PMID: 31279184 DOI: 10.1016/j.envint.2019.05.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/05/2019] [Accepted: 05/06/2019] [Indexed: 05/26/2023]
Abstract
Potential exposure to toxic elements initially occurs during gestation and after birth via breast milk, which is the principal source of nutrients for infants during the first months of life. In this study, we evaluated whether maternal oral supplementation with a multi-strain probiotic product can protect infants from exposure to arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb) via breast milk. In-vitro studies of the bacterial strains present in this probiotic product showed a high bacterial tolerance for As, Cd, Hg, and Pb, and good binding capacity for Cd, Hg, and Pb (72%, 81%, and 64%, respectively) within 1 h of contact. We evaluated concentrations (5 mg L-1 for Cd and Pb, and 2 mg L-1 for Hg) that largely exceeded the provisional tolerable weekly intake of these toxic elements via food or water applicable for human consumption. Changes in the levels of these elements in breast milk and newborn stools were evaluated in the control (orally supplemented with placebo) and experimental (orally supplemented with probiotic) groups at birth (t0), 15 days (t15), and 30 days (t30) after delivery. Elemental analysis of breast milk did not show significant differences between the control and experimental groups at different stages of lactation; however, stool samples obtained from newborns of mothers supplemented with the probiotic product showed that Cd levels were significantly reduced (by 26%) at t15 compared with the levels of the controls. Our data did not show an association between concentration of toxic elements in breast milk and that in newborn stools. Indeed, the concentration of Cd, Hg, and Pb in breast milk decreased during the lactation period, whereas the levels of these elements in newborn stools were stable over time. Although our in-vitro data indicate that the consortium of these probiotic strains can absorb toxic compounds, this study was limited by its small sample size and potential uncontrolled confounding effects, such as maternal diet and lifestyle. Therefore, we could not confirm whether prophylactic use of this probiotic product can reduce the absorption of toxic elements. The risk assessment in the studied population evidenced a margin of exposure (MOE) of 1, or between 1 and 10 for Pb, and lower than 50 for As. This poses a potential risk for breastfed infants, indicating that interventions aimed to avoid breastfeeding-related health risks remain a major challenge in public health.
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Affiliation(s)
- Maria Luisa Astolfi
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy.
| | - Carmela Protano
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Elisa Schiavi
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Elisabetta Marconi
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Daniela Capobianco
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Lorenzo Massimi
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Martina Ristorini
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Maria Elisabetta Baldassarre
- Department of Biomedical Science and Human Oncology, Section of Neonatology and Neonatal Intensive Care Unit, University "Aldo Moro" of Bari, Piazza Giulio Cesare 11, I-70124 Bari, Italy
| | - Nicola Laforgia
- Department of Biomedical Science and Human Oncology, Section of Neonatology and Neonatal Intensive Care Unit, University "Aldo Moro" of Bari, Piazza Giulio Cesare 11, I-70124 Bari, Italy
| | - Matteo Vitali
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Silvia Canepari
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Paola Mastromarino
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
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Montone CM, Antonelli M, Capriotti AL, Cavaliere C, Barbera G, Piovesana S, Laganà A. Investigation of free and conjugated seleno‐amino acids in wheat bran by hydrophilic interaction liquid chromatography with tandem mass spectrometry. J Sep Sci 2019; 42:1938-1947. [DOI: 10.1002/jssc.201900047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/12/2019] [Accepted: 03/18/2019] [Indexed: 12/14/2022]
Affiliation(s)
| | | | | | | | - Giorgia Barbera
- Dipartimento di ChimicaSapienza Università di Roma Rome Italy
| | - Susy Piovesana
- Dipartimento di ChimicaSapienza Università di Roma Rome Italy
| | - Aldo Laganà
- Dipartimento di ChimicaSapienza Università di Roma Rome Italy
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20
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Piovesana S, Montone CM, Antonelli M, Cavaliere C, La Barbera G, Canepari S, Samperi R, Laganà A, Capriotti AL. Investigation of free seleno-amino acids in extra-virgin olive oil by mixed mode solid phase extraction cleanup and enantioselective hydrophilic interaction liquid chromatography-tandem mass spectrometry. Food Chem 2019; 278:17-25. [DOI: 10.1016/j.foodchem.2018.11.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 11/05/2018] [Accepted: 11/09/2018] [Indexed: 11/15/2022]
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21
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Kyrgios I, Giza S, Kotanidou EP, Kleisarchaki A, Tsinopoulou VR, Papadopoulou A, Markantonatou AM, Kanellidou E, Giannakou A, Galli-Tsinopoulou A. l
-selenomethionine supplementation in children and adolescents with autoimmune thyroiditis: A randomized double-blind placebo-controlled clinical trial. J Clin Pharm Ther 2018; 44:102-108. [DOI: 10.1111/jcpt.12765] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 08/25/2018] [Accepted: 09/11/2018] [Indexed: 01/04/2023]
Affiliation(s)
- Ioannis Kyrgios
- 4th Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Papageorgiou General Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Styliani Giza
- 4th Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Papageorgiou General Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Eleni P. Kotanidou
- 4th Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Papageorgiou General Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Angeliki Kleisarchaki
- 4th Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Papageorgiou General Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Vasiliki Rengina Tsinopoulou
- 4th Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Papageorgiou General Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Anastasia Papadopoulou
- 4th Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Papageorgiou General Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
| | | | - Eleni Kanellidou
- Department of Immunology; Papageorgiou General Hospital; Thessaloniki Greece
| | - Anastasia Giannakou
- Department of Immunology; Papageorgiou General Hospital; Thessaloniki Greece
| | - Assimina Galli-Tsinopoulou
- 4th Department of Pediatrics, School of Medicine, Faculty of Health Sciences, Papageorgiou General Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
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22
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Astolfi ML, Marconi E, Protano C, Vitali M, Schiavi E, Mastromarino P, Canepari S. Optimization and validation of a fast digestion method for the determination of major and trace elements in breast milk by ICP-MS. Anal Chim Acta 2018; 1040:49-62. [PMID: 30327113 DOI: 10.1016/j.aca.2018.07.037] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 12/14/2022]
Abstract
Breast milk guarantees all the nutrients required by infants during their first few months of life and remains the most important food source for their health and growth. However, the mother may transfer potentially toxic chemicals to the suckling infant through breastfeeding. The aim of this study was to optimize and validate a fast method for the determination of a total content of 34 elements (Al, As, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cs, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, Rb, Sb, Se, Si, Sn, Sr, Te, Ti, Tl, U, V, and Zn) in liquid and lyophilized breast milk. The samples were subjected to HNO3:H2O2 (2:1) digestion in an open vessel heated in a water bath (WBD; 80 °C) and subsequently analysed by quadrupole inductively coupled plasma mass spectrometry equipped with a collision-reaction interface. The performance of the proposed method was evaluated in terms of selectivity, detection and quantification limits, linearity, accuracy, and robustness by using standard reference materials and filed samples of breast milk. Compared to microwave-assisted acid digestion, the proposed open vessel digestion allows a significant reduction in treatment time and sample manipulation, while maintaining a similar analytical performance. Masses of 0.5 g of breast milk were efficiently digested with the WBD treatment allowing a residual carbon content lower than 60 mg L-1 and a residual acidity lower than 0.87 mol L-1 in final digested samples. Thus, it shows great potential for application to routine analysis. The method provides satisfactory detection limits and good performance (trueness and recovery percentages 80-111%; coefficient of variation <10%; and relative repeatability <15%) and allows a high sample throughput for multi-elemental determination in human biomonitoring studies.
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Affiliation(s)
- Maria Luisa Astolfi
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy.
| | - Elisabetta Marconi
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Carmela Protano
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Matteo Vitali
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Elisa Schiavi
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Paola Mastromarino
- Department of Public Health and Infectious Diseases, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
| | - Silvia Canepari
- Department of Chemistry, Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy
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Diet composition and serum levels of selenium species: A cross-sectional study. Food Chem Toxicol 2018; 115:482-490. [PMID: 29621579 DOI: 10.1016/j.fct.2018.03.048] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/14/2018] [Accepted: 03/30/2018] [Indexed: 12/13/2022]
Abstract
Selenium is a trace element of both nutritional and toxicological interest, depending on its dose and chemical form. Diet is the primary source of exposure for most individuals. We sought to investigate the influence of food intake on serum levels of selenium species. Among fifty subjects randomly selected from a Northern Italian population, we assessed dietary habits using a validated semi-quantitative food frequency questionnaire. We also measured circulating levels of selenium species in serum using high pressure liquid chromatography associated with inductively-coupled plasma dynamic reaction cell mass spectrometer. Circulating levels of inorganic selenium, the most toxic selenium species, were positively associated with intake of fish, legumes and dry fruits, and inversely associated with intake of dairy products and mushrooms. Concerning the organic selenium species, selenoproteinP-bound selenium was inversely associated with intake of fish, fresh fruits, vegetables, and legumes, while selenocysteine-bound selenium positively associated with intake of fresh fruit, potato, legume and mushroom. In the present study, intakes of different foods were correlated with different types of selenium species. These results have important public health implications when assessing the nutritional and toxicological potential of diet composition with reference to selenium exposure.
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