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Sharma P, Khetarpal P. Genetic Determinants of Selenium Availability, Selenium-Response, and Risk of Polycystic Ovary Syndrome. Biol Trace Elem Res 2024; 202:4843-4857. [PMID: 38227265 DOI: 10.1007/s12011-023-04052-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 12/29/2023] [Indexed: 01/17/2024]
Abstract
Selenium is a trace element and its deficiency has been associated with the risk of PCOS, a multifactorial syndrome that affects a large number of women worldwide. Several databases and literature were searched to find out genetic variants of the genes involved in selenium uptake, metabolism, and regulation which may be significantly associated with the risk of PCOS through Se-related pathways. Genes that require selenium for their biological actions to perform were also shortlisted. A total of eighteen significantly associated genes with forty-four variants were identified as candidate variants that could play a potential role in the modulation of PCOS risk among the study population. The genetic variant distribution data was available in-house and was obtained through a GWAS study of the North India population. In silico tools were applied to understand the functional impact of these variants. Three variants namely LDLR (rs2228671), TNF (rs1041981), and SAA2 (rs2468844) are strongly associated with PCOS risk and have a functional impact on encoded protein. Certain variants of Se uptake genes such as DIO1, GPX2, TXNRD1, DIO2 and GPX3 are also significantly associated with the risk of PCOS development. "C" allele of the Se transporter gene SELENOP (rs9686343) significantly increases PCOS risk. Other potential genes require selenium for their biological actions and are involved in the inflammatory, antioxidant response, and energy homeostasis signaling pathways. Thus, genetic variants of the population may affect the Se availability in the body. Also, deficiency of Se effects may get modulated due to underlying genetic polymorphism of Se-associated genes. This information may be helpful in dosage adjustment of Se supplementation for a population in order to get maximum benefits.
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Affiliation(s)
- Priya Sharma
- Laboratory for Reproductive and Developmental Disorders, Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, 151401, India
| | - Preeti Khetarpal
- Laboratory for Reproductive and Developmental Disorders, Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, 151401, India.
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2
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Moriguchi Watanabe L, Sousa L, Couto FM, Noronha NY, de Souza Pinhel MA, da Silva Carvalho GF, da Silva Rodrigues G, Bueno Júnior CR, Kulikowski LD, Barbosa Júnior F, Nonino CB. Genome-Wide Admixture and Association Study of Serum Selenium Deficiency to Identify Genetic Variants Indirectly Linked to Selenium Regulation in Brazilian Adults. Nutrients 2024; 16:1627. [PMID: 38892560 PMCID: PMC11175099 DOI: 10.3390/nu16111627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Blood selenium (Se) concentrations differ substantially by population and could be influenced by genetic variants, increasing Se deficiency-related diseases. We conducted a genome-wide association study (GWAS) to identify single nucleotide polymorphisms (SNPs) associated with serum Se deficiency in 382 adults with admixed ancestry. Genotyping arrays were combined to yield 90,937 SNPs. R packages were applied to quality control and imputation. We also performed the ancestral proportion analysis. The Search Tool for the Retrieval of Interacting Genes was used to interrogate known protein-protein interaction networks (PPIs). Our ancestral proportion analysis estimated 71% of the genome was from Caucasians, 22% was from Africans, and 8% was from East Asians. We identified the SNP rs1561573 in the TraB domain containing 2B (TRABD2B), rs425664 in MAF bZIP transcription factor (MAF), rs10444656 in spermatogenesis-associated 13 (SPATA13), and rs6592284 in heat shock protein nuclear import factor (HIKESHI) genes. The PPI analysis showed functional associations of Se deficiency, thyroid hormone metabolism, NRF2-ARE and the Wnt pathway, and heat stress. Our findings show evidence of a genetic association between Se deficiency and metabolic pathways indirectly linked to Se regulation, reinforcing the complex relationship between Se intake and the endogenous factors affecting the Se requirements for optimal health.
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Affiliation(s)
- Ligia Moriguchi Watanabe
- Division of Nutrition and Metabolism, Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo—FMRP/USP, São Paulo 14049-900, Brazil;
- Departamento de Estatística e Investigação Operacional (DEIO) e Centro de Estatística e Aplicações (CEAUL), Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal;
| | - Lisete Sousa
- Departamento de Estatística e Investigação Operacional (DEIO) e Centro de Estatística e Aplicações (CEAUL), Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal;
| | - Francisco M. Couto
- LASIGE, Departamento de Informática, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal;
| | - Natália Yumi Noronha
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo—FMRP/USP, São Paulo 14049-900, Brazil; (N.Y.N.); (M.A.d.S.P.)
| | - Marcela Augusta de Souza Pinhel
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo—FMRP/USP, São Paulo 14049-900, Brazil; (N.Y.N.); (M.A.d.S.P.)
| | | | - Guilherme da Silva Rodrigues
- School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, São Paulo 14040-900, Brazil; (G.d.S.R.); (C.R.B.J.)
| | - Carlos Roberto Bueno Júnior
- School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, São Paulo 14040-900, Brazil; (G.d.S.R.); (C.R.B.J.)
| | - Leslie Domenici Kulikowski
- Department of Pathology, São Paulo Medical School, University of São Paulo—FMUSP, São Paulo 01246-903, Brazil; (G.F.d.S.C.); (L.D.K.)
| | - Fernando Barbosa Júnior
- Department of Clinical and Toxicological Analyses and Bromatology, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo—FCFRP/USP, São Paulo 14040-900, Brazil;
| | - Carla Barbosa Nonino
- Division of Nutrition and Metabolism, Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo—FMRP/USP, São Paulo 14049-900, Brazil;
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo—FMRP/USP, São Paulo 14049-900, Brazil; (N.Y.N.); (M.A.d.S.P.)
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3
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Upmale-Engela S, Vaivode I, Peculis R, Litvina H, Zake T, Skesters A, Gogins D, Rovite V, Konrade I. Genetic and Environmental Factors in Autoimmune Thyroid Disease: Exploring Associations with Selenium Levels and Novel Loci in a Latvian Cohort. Curr Issues Mol Biol 2024; 46:2553-2565. [PMID: 38534778 DOI: 10.3390/cimb46030162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/03/2024] [Accepted: 03/08/2024] [Indexed: 03/28/2024] Open
Abstract
The interplay of genetic, immune and environmental factors strongly contributes to the development of autoimmune thyroid disease (AITD), which can be classified as Graves' disease (GD) or Hashimoto thyroiditis (HT). One of the most studied exogenous factors in the pathogenesis of AITD is selenium, which, in the form of selenoproteins, strengthens the antioxidative defence system of thyroid cells against superoxide production. Furthermore, it modulates inflammatory cytokine release and autoantibody production. The aim of this study was to assess the associations of genetic factors with selenium levels in a cohort of adults with HT and GD and healthy controls from Latvia. A total of 148 GD patients, 102 HT patients and 2442 control participants were included in the study. The genotypes were determined using genome-wide genotyping; imputation was carried out using the TOPMed r2 imputation panel; and association analysis was performed with PLINK v1.90b7. We found three loci associated with GD (LSAMP, HNRNPA3P5, and NTN1) and one locus associated with HT (VAT1L); furthermore, one locus was associated with a serum selenium concentration > 80 µg/L (LINC01544/RNF152/PIGN). The detected associations could be attributed to population-specific effects or unknown stratification in our cohort, and further assessment of these results is required to explain the relationships of genetic traits with AITD and other phenotypes.
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Affiliation(s)
| | - Ieva Vaivode
- Department of Internal Medicine, Riga Stradins University, LV-1007 Riga, Latvia
| | - Raitis Peculis
- Latvian Biomedical Research and Study Centre, Ratsupites Str. 1-k1, LV-1067 Riga, Latvia
| | - Helena Litvina
- Latvian Biomedical Research and Study Centre, Ratsupites Str. 1-k1, LV-1067 Riga, Latvia
| | - Tatjana Zake
- Department of Internal Medicine, Riga Stradins University, LV-1007 Riga, Latvia
| | - Andrejs Skesters
- Laboratory of Biochemistry, Riga Stradins University, LV-1007 Riga, Latvia
| | - Deniss Gogins
- Department of Internal Medicine, Riga Stradins University, LV-1007 Riga, Latvia
| | - Vita Rovite
- Latvian Biomedical Research and Study Centre, Ratsupites Str. 1-k1, LV-1067 Riga, Latvia
| | - Ilze Konrade
- Department of Internal Medicine, Riga Stradins University, LV-1007 Riga, Latvia
- Department of Endocrinology, Riga East Clinical Hospital, Hipokrata Str. 2, LV-1038 Riga, Latvia
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4
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Hughes DJ, Schomburg L, Jenab M, Biessy C, Méplan C, Moskal A, Sun Q, Demircan K, Fedirko V, Weiderpass E, Mukhtar M, Olsen A, Tjønneland A, Overvad K, Schulze M, Nøst TH, Skeie G, Olsen KS, Ricceri F, Grioni S, Palli D, Masala G, Tumino R, Pasanisi F, Amiano P, Colorado Yohar SM, Agudo A, Sánchez MJ, Ardanaz E, Sund M, Andersson A, Perez-Cornago A, Travis R, Heath AK, Dossus L. Prediagnostic selenium status, selenoprotein gene variants and association with breast cancer risk in a European cohort study. Free Radic Biol Med 2023; 209:381-393. [PMID: 37923090 DOI: 10.1016/j.freeradbiomed.2023.10.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/10/2023] [Accepted: 10/19/2023] [Indexed: 11/07/2023]
Abstract
Selenium (Se) may help prevent breast cancer (BC) development. Owing to limited observational evidence, we investigated whether prediagnostic Se status and/or variants in the selenoprotein genes are associated with BC risk in a large European cohort. Se status was assessed by plasma measures of Se and its major circulating proteins, selenoprotein P (SELENOP) and glutathione peroxidase 3 (GPX3), in matched BC case-control pairs (2208 for SELENOP; 1785 for GPX3 and Se) nested within the European Prospective Investigation into Cancer and Nutrition (EPIC). Single nucleotide polymorphisms (SNPs, n = 452) in 55 selenoprotein and Se metabolic pathway genes and an additional 18 variants previously associated with Se concentrations were extracted from existing genotyping data within EPIC for 1564 case-control pairs. Multivariable-adjusted logistic regression models were used to calculate the odds ratios (ORs) and 95 % confidence intervals (CIs) of the association between Se status markers, SNP variants and BC risk. Overall, there was no statistically significant association of Se status with BC risk. However, higher GPX3 activity was associated with lower risk of premenopausal BC (4th versus 1st quartile, OR = 0.54, 95 % CI: 0.30-0.98, Ptrend = 0.013). While none of the genetic variant associations (P ≤ 0.05) retained significance after multiple testing correction, rs1004243 in the SELENOM selenoprotein gene and two SNPs in the related antioxidant TXN2 gene (rs4821494 and rs5750261) were associated with respective lower and higher risks of BC at a significance threshold of P ≤ 0.01. Fourteen SNPs in twelve Se pathway genes (P ≤ 0.01) in interaction with Se status were also associated with BC risk. Higher Se status does not appear to be associated with BC risk, although activity of the selenoenzyme GPX3 may be inversely associated with premenopausal BC risk, and SNPs in the Se pathway alone or in combination with suboptimal Se status may influence BC risk.
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Affiliation(s)
- David J Hughes
- Cancer Biology and Therapeutics Group, School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, Ireland.
| | - Lutz Schomburg
- Institute for Experimental Endocrinology, Charité - Medical University, Berlin, Germany
| | - Mazda Jenab
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Carine Biessy
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Catherine Méplan
- School of Biomedical, Nutritional and Sport Sciences, Newcastle University, Newcastle Upon Tyne, UK
| | - Aurelie Moskal
- International Agency for Research on Cancer (IARC-WHO), Lyon, France; Research on Healthcare Performance (RESHAPE), INSERM U1290, Université Claude Bernard Lyon 1, Lyon, France
| | - Qian Sun
- Institute for Experimental Endocrinology, Charité - Medical University, Berlin, Germany
| | - Kamil Demircan
- Institute for Experimental Endocrinology, Charité - Medical University, Berlin, Germany
| | - Veronika Fedirko
- Department of Epidemiology, MD Anderson Cancer Centre, Houston, TX, USA
| | | | - Maryam Mukhtar
- Cancer Biology and Therapeutics Group, School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Anja Olsen
- Diet, Genes, and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark; Institute of Public Health, Aarhus University, Aarhus, Denmark
| | - Anne Tjønneland
- Diet, Genes, and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark; Institute of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Kim Overvad
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Matthias Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition, 14558, Nuthetal, Germany
| | - Therese Haugdahl Nøst
- Department of Community Medicine, UiT the Arctic University of Norway, N-9037, Tromsø, Norway
| | - Guri Skeie
- Department of Community Medicine, UiT the Arctic University of Norway, N-9037, Tromsø, Norway
| | - Karina Standahl Olsen
- Department of Community Medicine, UiT the Arctic University of Norway, N-9037, Tromsø, Norway
| | - Fulvio Ricceri
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy; Unit of Epidemiology, Regional Health Service ASL TO3, Grugliasco, TO, Italy
| | - Sara Grioni
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale Dei Tumori di Milano, 20133, Milano, Italy
| | - Domenico Palli
- Cancer Risk Factors and Life-Style Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Giovanna Masala
- Cancer Risk Factors and Life-Style Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Rosario Tumino
- Hyblean Association for Epidemiological Research, AIRE ONLUS Ragusa, Italy
| | - Fabrizio Pasanisi
- Departiment Di Medicina Clinica E Chirurgia Federico Ii University, Naples, Italy
| | - Pilar Amiano
- Ministry of Health of the Basque Government, Sub Directorate for Public Health and Addictions of Gipuzkoa, San Sebastian, Spain; Biodonostia Health Research Institute, Epidemiology of Chronic and Communicable Diseases Group, San Sebastián, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - Sandra M Colorado Yohar
- Department of Epidemiology, Murcia Regional Health Council, IMIB, Murcia, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Research Group on Demography and Health, National Faculty of Public Health, University of Antioquia, Medellín, Colombia
| | - Antonio Agudo
- Unit of Nutrition and Cancer, Catalan Institute of Oncology - ICO, L'Hospitalet de Llobregat, Spain; Nutrition and Cancer Group, Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet de Llobregat, Spain
| | - Maria-Jose Sánchez
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Escuela Andaluza de Salud Pública (EASP), 18011, Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, 18012, Granada, Spain; Department of Preventive Medicine and Public Health, University of Granada, 18071, Granada, Spain
| | - Eva Ardanaz
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Navarra Public Health Institute, Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Malin Sund
- Department of Surgery and Perioperative Sciences, Umeå University, Umeå, Sweden; Department of Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Anne Andersson
- Department of Radiation Sciences/Oncology, Umeå University, Umeå, Sweden
| | - Aurora Perez-Cornago
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, OX3 7LF, UK
| | - Ruth Travis
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, OX3 7LF, UK
| | - Alicia K Heath
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Laure Dossus
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
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An Assessment of Serum Selenium Concentration in Women with Ovarian Cancer. Nutrients 2023; 15:nu15040850. [PMID: 36839209 PMCID: PMC9963663 DOI: 10.3390/nu15040850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/25/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Available studies on the effect of serum selenium levels on the risk of malignancies show some conflicting results. In this study, we investigated the correlation between serum selenium levels and ovarian cancer occurrence. METHODS 314 women (157 diseased patients and 157 healthy ones) matched in terms of age and BMI were included in the study. The measurements of selenium in the collected blood samples were performed using an ICP mass spectrometer. Univariable and multivariable analyzes were performed to determine the relationship between the factors under the study and the occurrence of ovarian cancer. RESULTS The mean concentration of selenium was lower among diseased ones than among controls (53.31 μg/L vs. 78.99 μg/L). A decrease in selenium concentration was noticed with the advancement of ovarian cancer. In univariable and multivariable analyzes, a clear relationship between low selenium concentration and the occurrence of ovarian cancer was found (35.3 (95% CI: 11.2-111; p < 0.001) and 45.8 (95% CI: 12.8-164; p < 0.001)). CONCLUSION The studied patients with ovarian cancer are characterized by statistically significant lower serum selenium levels than patients from the control group. Among the study group, a decrease in selenium concentration was observed with an increase in the FIGO stage. The determination of the role of selenium as a prophylactic factor in ovarian cancer requires further prospective studies.
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Santesmasses D, Gladyshev VN. Pathogenic Variants in Selenoproteins and Selenocysteine Biosynthesis Machinery. Int J Mol Sci 2021; 22:11593. [PMID: 34769022 PMCID: PMC8584023 DOI: 10.3390/ijms222111593] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/22/2021] [Accepted: 10/22/2021] [Indexed: 01/07/2023] Open
Abstract
Selenium is incorporated into selenoproteins as the 21st amino acid selenocysteine (Sec). There are 25 selenoproteins encoded in the human genome, and their synthesis requires a dedicated machinery. Most selenoproteins are oxidoreductases with important functions in human health. A number of disorders have been associated with deficiency of selenoproteins, caused by mutations in selenoprotein genes or Sec machinery genes. We discuss mutations that are known to cause disease in humans and report their allele frequencies in the general population. The occurrence of protein-truncating variants in the same genes is also presented. We provide an overview of pathogenic variants in selenoproteins genes from a population genomics perspective.
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Affiliation(s)
| | - Vadim N. Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
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Batai K, Trejo MJ, Chen Y, Kohler LN, Lance P, Ellis NA, Cornelis MC, Chow HHS, Hsu CH, Jacobs ET. Genome-Wide Association Study of Response to Selenium Supplementation and Circulating Selenium Concentrations in Adults of European Descent. J Nutr 2020; 151:293-302. [PMID: 33382417 PMCID: PMC7849979 DOI: 10.1093/jn/nxaa355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/31/2020] [Accepted: 10/14/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Selenium (Se) is a trace element that has been linked to many health conditions. Genome-wide association studies (GWAS) have identified variants for blood and toenail Se levels, but no GWAS has been conducted to date on responses to Se supplementation. OBJECTIVES A GWAS was performed to identify the single nucleotide polymorphisms (SNPs) associated with changes in Se concentrations after 1 year of supplementation. A GWAS of basal plasma Se concentrations at study entry was conducted to evaluate whether SNPs for Se responses overlap with SNPs for basal Se levels. METHODS A total of 428 participants aged 40-80 years of European descent from the Selenium and Celecoxib Trial (Sel/Cel Trial) who received daily supplementation with 200 µg of selenized yeast were included for the GWAS of responses to supplementation. Plasma Se concentrations were measured from blood samples collected at the time of recruitment and after 1 year of supplementation. Linear regression analyses were performed to assess the relationship between each SNP and changes in Se concentrations. We further examined whether the identified SNPs overlapped with those related to basal Se concentrations. RESULTS No SNP was significantly associated with changes in Se concentration at a genome-wide significance level. However, rs56856693, located upstream of the NEK6, was nominally associated with changes in Se concentrations after supplementation (P = 4.41 × 10-7), as were 2 additional SNPs, rs11960388 and rs6887869, located in the dimethylglycine dehydrogenase (DMGDH)/betaine-homocysteine S-methyltransferase (BHMT) region (P = 0.01). Alleles of 2 SNPs in the DMGDH/BHMT region associated with greater increases in Se concentrations after supplementation were also strongly associated with higher basal Se concentrations (P = 8.67 × 10-8). CONCLUSIONS This first GWAS of responses to Se supplementation in participants of European descent from the Sel/Cel Trial suggests that SNPs in the NEK6 and DMGDH/BHMT regions influence responses to supplementation.
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Affiliation(s)
- Ken Batai
- Address correspondence to KB (E-mail: )
| | - Mario J Trejo
- Department of Epidemiology and Biostatistics, University of Arizona, Tucson, AZ, USA
| | - Yuliang Chen
- Department of Epidemiology and Biostatistics, University of Arizona, Tucson, AZ, USA
| | - Lindsay N Kohler
- Department of Health Promotion Science, University of Arizona, Tucson, AZ, USA
| | - Peter Lance
- University of Arizona Cancer Center, Tucson, AZ, USA,Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, USA
| | - Nathan A Ellis
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, USA
| | - Marilyn C Cornelis
- Department of Preventive Medicine, Northwestern University, Chicago, IL, USA
| | - H-H Sherry Chow
- University of Arizona Cancer Center, Tucson, AZ, USA,Department of Medicine, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Chiu-Hsieh Hsu
- Department of Epidemiology and Biostatistics, University of Arizona, Tucson, AZ, USA
| | - Elizabeth T Jacobs
- Department of Epidemiology and Biostatistics, University of Arizona, Tucson, AZ, USA,University of Arizona Cancer Center, Tucson, AZ, USA
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Galmés S, Serra F, Palou A. Current State of Evidence: Influence of Nutritional and Nutrigenetic Factors on Immunity in the COVID-19 Pandemic Framework. Nutrients 2020; 12:E2738. [PMID: 32911778 PMCID: PMC7551697 DOI: 10.3390/nu12092738] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/27/2020] [Accepted: 09/04/2020] [Indexed: 02/06/2023] Open
Abstract
The pandemic caused by the new coronavirus has caused shock waves in many countries, producing a global health crisis worldwide. Lack of knowledge of the biological mechanisms of viruses, plus the absence of effective treatments against the disease (COVID-19) and/or vaccines have pulled factors that can compromise the proper functioning of the immune system to fight against infectious diseases into the spotlight. The optimal status of specific nutrients is considered crucial to keeping immune components within their normal activity, helping to avoid and overcome infections. Specifically, the European Food Safety Authority (EFSA) evaluated and deems six vitamins (D, A, C, Folate, B6, B12) and four minerals (zinc, iron, copper and selenium) to be essential for the normal functioning of the immune system, due to the scientific evidence collected so far. In this report, an update on the evidence of the contribution of nutritional factors as immune-enhancing aspects, factors that could reduce their bioavailability, and the role of the optimal status of these nutrients within the COVID-19 pandemic context was carried out. First, a non-systematic review of the current state of knowledge regarding the impact of an optimal nutritional status of these nutrients on the proper functioning of the immune system as well as their potential role in COVID-19 prevention/treatment was carried out by searching for available scientific evidence in PubMed and LitCovid databases. Second, a compilation from published sources and an analysis of nutritional data from 10 European countries was performed, and the relationship between country nutritional status and epidemiological COVID-19 data (available in the Worldometers database) was evaluated following an ecological study design. Furthermore, the potential effect of genetics was considered through the selection of genetic variants previously identified in Genome-Wide Association studies (GWAs) as influencing the nutritional status of these 10 considered nutrients. Therefore, access to genetic information in accessible databases (1000genomes, by Ensembl) of individuals from European populations enabled an approximation that countries might present a greater risk of suboptimal status of the nutrients studied. Results from the review approach show the importance of maintaining a correct nutritional status of these 10 nutrients analyzed for the health of the immune system, highlighting the importance of Vitamin D and iron in the context of COVID-19. Besides, the ecological study demonstrates that intake levels of relevant micronutrients-especially Vitamins D, C, B12, and iron-are inversely associated with higher COVID-19 incidence and/or mortality, particularly in populations genetically predisposed to show lower micronutrient status. In conclusion, nutrigenetic data provided by joint assessment of 10 essential nutrients for the functioning of the immune system and of the genetic factors that can limit their bioavailability can be a fundamental tool to help strengthen the immune system of individuals and prepare populations to fight against infectious diseases such as COVID-19.
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Affiliation(s)
- Sebastià Galmés
- Laboratory of Molecular Biology, Nutrition and Biotechnology, NUO Group, Universitat de les Illes Balears, 07122 Palma, Spain; (S.G.); (A.P.)
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 28029 Madrid, Spain
- Institut d’Investigació Sanitària Illes Balears (IdISBa), 07120 Palma, Spain
- Alimentómica S.L., Spin-off n.1 of the University of the Balearic Islands, 07121 Palma, Spain
| | - Francisca Serra
- Laboratory of Molecular Biology, Nutrition and Biotechnology, NUO Group, Universitat de les Illes Balears, 07122 Palma, Spain; (S.G.); (A.P.)
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 28029 Madrid, Spain
- Institut d’Investigació Sanitària Illes Balears (IdISBa), 07120 Palma, Spain
- Alimentómica S.L., Spin-off n.1 of the University of the Balearic Islands, 07121 Palma, Spain
| | - Andreu Palou
- Laboratory of Molecular Biology, Nutrition and Biotechnology, NUO Group, Universitat de les Illes Balears, 07122 Palma, Spain; (S.G.); (A.P.)
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 28029 Madrid, Spain
- Institut d’Investigació Sanitària Illes Balears (IdISBa), 07120 Palma, Spain
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9
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He D, Wang Z, Huang C, Fang X, Chen D. Serum Selenium Levels and Cervical Cancer: Systematic Review and Meta-Analysis. Biol Trace Elem Res 2017; 179:195-202. [PMID: 28255860 DOI: 10.1007/s12011-017-0982-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 02/21/2017] [Indexed: 01/05/2023]
Abstract
Several studies have investigated the relationship between serum Se concentration and cervical cancer, but the results were inconsistent. Thus, we conducted a systematic review and meta-analysis to evaluate the association between serum selenium levels and cervical cancer. Twelve studies investigating the association by univariate analysis and five studies by multivariate analysis were identified after a systematic search of PubMed, Wanfang, CNKI, and SinoMed databases. Standard mean differences (SMD) or odds ratios (OR) with the corresponding 95% confidence intervals (CI) were pooled to compare the selenium levels between different groups. In univariate analysis, serum selenium levels in cervical cancer cases were significantly lower than in controls (SMD = -4.86, 95% CI -6.03-3.69). Subgroup analysis showed consistent results. In multivariate analysis, serum selenium levels in cervical cancer cases were also significantly lower than in controls (OR = 0.55, 95% CI 0.42-0.73). After treatment, the serum selenium levels increased significantly (SMD = 2.59, 95% CI 0.50-4.69). In conclusion, high serum selenium levels were associated with cervical cancer, and selenium exposure might be a protective factor for cervical cancer.
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Affiliation(s)
- Du He
- Department of Oncology, The Central Hospital of Enshi Autonomous of Prefecture, Enshi Clinical College of Wuhan University, Enshi, 445000, China
- Enshi Clinical College of Wuhan University, Enshi, China
| | - Zaiping Wang
- Department of Oncology, The Central Hospital of Enshi Autonomous of Prefecture, Enshi Clinical College of Wuhan University, Enshi, 445000, China
- Enshi Clinical College of Wuhan University, Enshi, China
| | - Chuying Huang
- Department of Oncology, The Central Hospital of Enshi Autonomous of Prefecture, Enshi Clinical College of Wuhan University, Enshi, 445000, China
- Enshi Clinical College of Wuhan University, Enshi, China
| | - Xiping Fang
- Department of Oncology, The Central Hospital of Enshi Autonomous of Prefecture, Enshi Clinical College of Wuhan University, Enshi, 445000, China
- Enshi Clinical College of Wuhan University, Enshi, China
| | - Dian Chen
- Department of Oncology, The Central Hospital of Enshi Autonomous of Prefecture, Enshi Clinical College of Wuhan University, Enshi, 445000, China.
- Enshi Clinical College of Wuhan University, Enshi, China.
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10
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Carrick DM, Black A, Gohagan JK, Khan A, Pettit K, Williams C, Yu K, Yurgalevitch S, Huang WY, Zhu C. The PLCO Biorepository: Creating, Maintaining, and Administering a Unique Biospecimen Resource. Rev Recent Clin Trials 2016; 10:212-22. [PMID: 26238117 DOI: 10.2174/1574887110666150730121429] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 07/14/2015] [Accepted: 07/16/2015] [Indexed: 12/12/2022]
Abstract
Inclusion of biospecimens in population-based studies is an integral part of understanding disease etiology, identifying biomarkers and developing prevention and treatment strategies. The Prostate, Lung, Colorectal, and Ovarian (PLCO) cancer screening trial collected, processed and stored biospecimens from participants to create a biorepository of specimens which serves as a useful resource for a broad research community. PLCO collected blood samples from consented screening arm participants at six screening rounds and a buccal sample from consented control arm participants. In addition, formalin-fixed paraffin embedded tumor tissue specimens were collected for participants in both arms for selected cancer sites. Collection of biospecimens at multiple timepoints (i.e. serial samples) and prior to cancer diagnosis, paired with rich epidemiologic and screening data, makes the PLCO collection of biospecimens a uniquely valuable resource. As such, access to the PLCO biorepository is granted to investigators by a rigorous scientific review process and guided by a steering committee which is responsible for developing and implementing the biospecimen use policies. Here, we describe the procedures for biospecimen collection, processing, storage, requisition, and distribution, as well as data management employed in PLCO. We also provide examples of how the biospecimens have been used to advance cancer research and describe relevant lessons learned to help inform cohorts wishing to add or modify biospecimen collection.
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Affiliation(s)
- Danielle M Carrick
- Epidemiology and Genomics Research Program DCCPS, NCI, NIH, 9609 Medical Center Drive 4E224 Rockville, MD 20850, USA.
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11
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Cornelis MC, Fornage M, Foy M, Xun P, Gladyshev VN, Morris S, Chasman DI, Hu FB, Rimm EB, Kraft P, Jordan JM, Mozaffarian D, He K. Genome-wide association study of selenium concentrations. Hum Mol Genet 2014; 24:1469-77. [PMID: 25343990 DOI: 10.1093/hmg/ddu546] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Selenium (Se) is an essential trace element in human nutrition, but its role in certain health conditions, particularly among Se sufficient populations, is controversial. A genome-wide association study (GWAS) of blood Se concentrations previously identified a locus at 5q14 near BHMT. We performed a GW meta-analysis of toenail Se concentrations, which reflect a longer duration of exposure than blood Se concentrations, including 4162 European descendants from four US cohorts. Toenail Se was measured using neutron activation analysis. We identified a GW-significant locus at 5q14 (P < 1 × 10(-16)), the same locus identified in the published GWAS of blood Se based on independent cohorts. The lead single-nucleotide polymorphism (SNP) explained ∼1% of the variance in toenail Se concentrations. Using GW-summary statistics from both toenail and blood Se, we observed statistical evidence of polygenic overlap (P < 0.001) and meta-analysis of results from studies of either trait (n = 9639) yielded a second GW-significant locus at 21q22.3, harboring CBS (P < 4 × 10(-8)). Proteins encoded by genes at 5q14 and 21q22.3 function in homocysteine (Hcy) metabolism, and index SNPs for each have previously been associated with betaine and Hcy levels in GWAS. Our findings show evidence of a genetic link between Se and Hcy pathways, both involved in cardiometabolic disease.
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Affiliation(s)
| | - Myriam Fornage
- Center for Human Genetics, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Millennia Foy
- Center for Human Genetics, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Pengcheng Xun
- Department of Epidemiology and Biostatistics, Indiana University at Bloomington, Bloomington, IN, USA
| | | | - Steve Morris
- University of Missouri Research Reactor Center, Columbia, MO, USA
| | - Daniel I Chasman
- Division of Preventive Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Frank B Hu
- Channing Division of Network Medicine, Department of Nutrition, Department of Epidemiology, and
| | - Eric B Rimm
- Channing Division of Network Medicine, Department of Nutrition, Department of Epidemiology, and
| | - Peter Kraft
- Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, MA, USA
| | - Joanne M Jordan
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, NC, USA, Department of Medicine and Department of Orthopaedics, UNC School of Medicine, NC, USA, Department of Epidemiology, UNC Gillings School of Global Public Health, NC, USA
| | - Dariush Mozaffarian
- Channing Division of Network Medicine, Department of Nutrition, Department of Epidemiology, and Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Ka He
- Department of Epidemiology and Biostatistics, Indiana University at Bloomington, Bloomington, IN, USA
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