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Oliveira JM, Zenzeluk J, Serrano-Nascimento C, Romano MA, Romano RM. A System Biology Approach Reveals New Targets for Human Thyroid Gland Toxicity in Embryos and Adult Individuals. Metabolites 2024; 14:226. [PMID: 38668354 PMCID: PMC11052307 DOI: 10.3390/metabo14040226] [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: 03/15/2024] [Revised: 04/05/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Compounds of natural or synthetic origin present in personal care products, food additives, and packaging may interfere with hormonal regulation and are called endocrine-disrupting chemicals (EDCs). The thyroid gland is an important target of these compounds. The objective of this study was to analyze public data on the human thyroid transcriptome and investigate potential new targets of EDCs in the embryonic and adult thyroid glands. We compared the public transcriptome data of adult and embryonic human thyroid glands and selected 100 up- or downregulated genes that were subsequently subjected to functional enrichment analysis. In the embryonic thyroid, the most highly expressed gene was PRMT6, which methylates arginine-4 of histone H2A (86.21%), and the downregulated clusters included plasma lipoprotein particles (39.24%) and endopeptidase inhibitory activity (24.05%). For the adult thyroid gland, the most highly expressed genes were related to the following categories: metallothionein-binding metals (56.67%), steroid hormone biosynthetic process (16.67%), and cellular response to vascular endothelial growth factor stimulus (6.67%). Several compounds ranging from antihypertensive drugs to enzyme inhibitors were identified as potentially harmful to thyroid gland development and adult function.
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Affiliation(s)
- Jeane Maria Oliveira
- Department of Medicine, Laboratory of Reproductive Toxicology, State University of the Midwest (UNICENTRO), Alameda Élio Antonio Dalla Vecchia, nº 838, Guarapuava 85040-167, PR, Brazil; (J.M.O.); (J.Z.); (M.A.R.)
| | - Jamilli Zenzeluk
- Department of Medicine, Laboratory of Reproductive Toxicology, State University of the Midwest (UNICENTRO), Alameda Élio Antonio Dalla Vecchia, nº 838, Guarapuava 85040-167, PR, Brazil; (J.M.O.); (J.Z.); (M.A.R.)
| | - Caroline Serrano-Nascimento
- Institute of Environmental, Chemical and Pharmaceutical Sciences (ICAQF), Department of Biological Sciences, Federal University of São Paulo (UNIFESP), Rua Professor Arthur Riedel, 275, Diadema 09972-270, SP, Brazil;
- Department of Medicine, Laboratory of Molecular and Translational Endocrinology Medicine, Federal University of São Paulo (UNIFESP), Rua Pedro de Toledo, 669-11º andar-L11E, São Paulo 04039-032, SP, Brazil
| | - Marco Aurelio Romano
- Department of Medicine, Laboratory of Reproductive Toxicology, State University of the Midwest (UNICENTRO), Alameda Élio Antonio Dalla Vecchia, nº 838, Guarapuava 85040-167, PR, Brazil; (J.M.O.); (J.Z.); (M.A.R.)
| | - Renata Marino Romano
- Department of Medicine, Laboratory of Reproductive Toxicology, State University of the Midwest (UNICENTRO), Alameda Élio Antonio Dalla Vecchia, nº 838, Guarapuava 85040-167, PR, Brazil; (J.M.O.); (J.Z.); (M.A.R.)
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Wang G, Jiang Z, Song Y, Xing Y, He S, Boomi P. Gut microbiota contribution to selenium deficiency-induced gut-liver inflammation. Biofactors 2024; 50:311-325. [PMID: 37676478 DOI: 10.1002/biof.2006] [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: 04/24/2023] [Accepted: 08/05/2023] [Indexed: 09/08/2023]
Abstract
There is limited knowledge about the factors that drive gut-liver axis changes after selenium (Se) deficiency-induced gut or liver injuries. Thus, we tested Se deficiency in mice to determine its effects on intestinal bacterial balance and whether it induced liver injury. Serum Se concentration, lipopolysaccharide (LPS) level, and liver injury biomarkers were tested using a biochemical method, while pathological changes in the liver and jejunum were observed via hematoxylin and eosin stain, and a fluorescence spectrophotometer was used to evaluate intestinal permeability. Tight junction (TJ)-related and toll-like receptor (TLR) signaling-related pathway genes and proteins were tested using quantitative polymerase chain reaction, western blotting, immunohistochemistry, and 16S ribosomal ribonucleic acid gene-targeted sequencing of jejunum microorganisms. Se deficiency significantly decreased glutathione peroxidase activity and disrupted the intestinal flora, with the most significant effect being a decrease in Lactobacillus reuteri. The expression of TJ-related genes and proteins decreased significantly with increased treatment time, whereas supplementation with Se, fecal microbiota transplantation, or L. reuteri reversed these decreases. Signs of liver injury and LPS content were significantly increased after intestinal flora imbalance or jejunum injury, and the levels of TLR signaling-related genes were significantly increased. The results indicated that Se deficiency disrupted the microbiota balance, decreased the expression of intestinal TJ factors, and increased intestinal permeability. By contrast, LPS increased due to a bacterial imbalance, which may induce inflammatory liver injury via the TLR4 signaling pathway.
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Affiliation(s)
- Guodong Wang
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, Henan, China
| | - Zhihui Jiang
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, Henan, China
| | - Yuwei Song
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, Henan, China
| | - Yueteng Xing
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, Henan, China
| | - Simin He
- Henan Joint International Research Laboratory of Veterinary Biologics Research and Application, Anyang Institute of Technology, Anyang, Henan, China
| | - P Boomi
- Department of Bioinformatics, Alagappa University, Karaikudi, Tamil Nadu, India
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de Souza Lima B, Sanches APV, Ferreira MS, de Oliveira JL, Cleal JK, Ignacio-Souza L. Maternal-placental axis and its impact on fetal outcomes, metabolism, and development. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166855. [PMID: 37633470 DOI: 10.1016/j.bbadis.2023.166855] [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: 04/15/2023] [Revised: 06/23/2023] [Accepted: 08/18/2023] [Indexed: 08/28/2023]
Abstract
Maternal obesity could impact offspring's health. During "critical period" such as pregnancy insults have a significant role in developing chronic diseases later in life. Literature has shown that diet can play a major role in essential metabolic and development processes on fetal outcomes. Moreover, the placenta, an essential organ developed in pregnancy, seems to have its functions impaired based on pre-gestational and gestational nutritional status. Specifically, a high-fat diet has been shown as a potential nutritional insult that also affects the maternal-placental axis, which is involved in offspring development and outcome. Moreover, some classes of nutrients are associated with pregnancy complications such as reduced intake of micronutrients and diabetes, preeclampsia, and preterm delivery. Thus, we will summarize the current literature on maternal environment factors that impacts the placental development and consequently the fetal an offspring health, or the maternal-placental axis, and this on fetal outcomes, metabolism, and development.
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Affiliation(s)
- Bruna de Souza Lima
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas, UNICAMP, Limeira, São Paulo, Brazil.
| | - Ana Paula Varela Sanches
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas, UNICAMP, Limeira, São Paulo, Brazil
| | - Maíra Schuchter Ferreira
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas, UNICAMP, Limeira, São Paulo, Brazil
| | - Josilene Lopes de Oliveira
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas, UNICAMP, Limeira, São Paulo, Brazil
| | - Jane K Cleal
- The Institute of Developmental Sciences, Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK.
| | - Letícia Ignacio-Souza
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas, UNICAMP, Limeira, São Paulo, Brazil.
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Yao L, Liu L, Dong M, Yang J, Zhao Z, Chen J, Lv L, Wu Z, Wang J, Sun X, Self S, Bhatti P. Trimester-specific prenatal heavy metal exposures and sex-specific postpartum size and growth. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2023; 33:895-902. [PMID: 35490160 PMCID: PMC9617807 DOI: 10.1038/s41370-022-00443-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND There has been limited research considering the effects of prenatal exposure to multiple heavy metals on early childhood size and growth. OBJECTIVE We evaluated prenatal exposures to 15 heavy metals in association with measures of weight, length, and head circumference (HC) measured at birth, and 1, 3 and 6 months of age in a study of 358 mother-child pairs. METHODS Urinary concentrations were measured in the first and third trimesters of pregnancy and examined, using sex-stratified general linear models, in association with average standardized size and changes in size (growth) over the first 6 months of life. Confounding effects among metals were explored. RESULTS Increased first trimester Hg and V were associated with decreased average HC among males and weight among females, respectively. Increased first trimester V was associated with a decline in weight among females over time. Increased third trimester Cs, Rb and Tl were associated with increased average weight and HC among males. Increased third trimester Se was associated with increased HC among females over time. Evidence for confounding was observed between Cs, Rb and Tl in association with weight and HC. SIGNIFICANCE We observed multiple biologically plausible associations between prenatal heavy metal exposures and postnatal size and growth. IMPACT We have taken a comprehensive and novel approach to evaluating the impacts of prenatal heavy metal exposures on size and growth during early childhood. Our detailed analyses consider exposures to 15 different heavy metals at two time points during pregnancy, as well as multiple metrics of size and growth collected at birth and 1, 3 and 6 months of age.
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Affiliation(s)
- Lena Yao
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Lili Liu
- Department of Toxicology, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment, Guangdong Province Hospital for Occupational Disease Prevention, Guangzhou, China
| | - Ming Dong
- Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment, Guangdong Province Hospital for Occupational Disease Prevention, Guangzhou, China
| | - Jinmei Yang
- Department of Toxicology, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment, Guangdong Province Hospital for Occupational Disease Prevention, Guangzhou, China
| | - Zhiqiang Zhao
- Department of Toxicology, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment, Guangdong Province Hospital for Occupational Disease Prevention, Guangzhou, China
| | - Jiabin Chen
- Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment, Guangdong Province Hospital for Occupational Disease Prevention, Guangzhou, China
| | - Lijuan Lv
- Guangdong Maternal and Child Hospital, Guangzhou, China
| | - Zhaoxia Wu
- Nanhai Maternity and Child Healthcare Hospital of Foshan, Foshan, China
| | - Jin Wang
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xin Sun
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Steven Self
- Department of Biostatistics, School of Public Health, University of Washington, Seattle, WA, USA
| | - Parveen Bhatti
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.
- Cancer Control Research, BC Cancer Research Institute, Vancouver, BC, Canada.
- School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
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Klöppel E, Souza MR, Barco VS, Gallego FQ, Sinzato YK, Corrente JE, Rodrigues T, Volpato GT, Damasceno DC. Calcium Supplementation on Glucose Tolerance, Oxidative Stress, and Reproductive Outcomes of Diabetic Rats and Their Offspring. Reprod Sci 2023; 30:2813-2828. [PMID: 37002533 DOI: 10.1007/s43032-023-01217-9] [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: 10/14/2022] [Accepted: 03/09/2023] [Indexed: 04/03/2023]
Abstract
Diabetes mellitus increases the risk of obstetric complications, morbidity, and infant mortality. Controlled nutritional therapy with micronutrients has been employed. However, the effect of calcium (Ca2+) supplementation on diabetic pregnancy is unclear. We aimed to evaluate whether diabetic rats supplemented with Ca2+ during pregnancy present better glucose tolerance, redox status, embryonic and fetal development, newborn weight, and the prooxidant and antioxidant balance of male and female pups. For this, newborn rats received the beta-cytotoxic drug streptozotocin for inducing diabetes on the day of birth. In adulthood, these rats were mated and treated with Ca2+ twice a day from day 0 to day 20 of pregnancy. On day 17, the pregnant rats were submitted to the oral glucose tolerance test (OGTT). At the end of pregnancy, they were anesthetized and killed to collect blood and pancreas samples. The uterine horns were exposed for an evaluation of maternal reproductive outcomes and embryofetal development, and the offspring's liver samples were collected for redox status measurement. Nondiabetic and diabetic rats supplemented with Ca2+ showed no influence on glucose tolerance, redox status, insulin synthesis, serum calcium levels, and embryofetal losses. The reduced rate of newborns classified as adequate for gestational age (AGA) and higher rates of LGA (large) and small (LGA) newborns and higher -SH and GSH-Px antioxidant activities in female pups were observed in diabetic dams, regardless of supplementation. Thus, maternal supplementation caused no improvement in glucose tolerance, oxidative stress biomarkers, embryofetal growth and development, and antioxidants in pups from diabetic mothers.
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Affiliation(s)
- Eduardo Klöppel
- Laboratory of Experimental Research On Gynecology and Obstetrics, Postgraduate Course On Tocogynecology, Botucatu Medical School, São Paulo State University_UNESP, Botucatu, São Paulo State, Brazil
| | - Maysa Rocha Souza
- Laboratory of Experimental Research On Gynecology and Obstetrics, Postgraduate Course On Tocogynecology, Botucatu Medical School, São Paulo State University_UNESP, Botucatu, São Paulo State, Brazil
- Laboratory of System Physiology and Reproductive Toxicology, Federal University of Mato Grosso_UFMT, Mato Grosso State, Barra Do Garças, Brazil
| | - Vinícius Soares Barco
- Laboratory of Experimental Research On Gynecology and Obstetrics, Postgraduate Course On Tocogynecology, Botucatu Medical School, São Paulo State University_UNESP, Botucatu, São Paulo State, Brazil
| | - Franciane Quintanilha Gallego
- Laboratory of Experimental Research On Gynecology and Obstetrics, Postgraduate Course On Tocogynecology, Botucatu Medical School, São Paulo State University_UNESP, Botucatu, São Paulo State, Brazil
| | - Yuri Karen Sinzato
- Laboratory of Experimental Research On Gynecology and Obstetrics, Postgraduate Course On Tocogynecology, Botucatu Medical School, São Paulo State University_UNESP, Botucatu, São Paulo State, Brazil
| | - José Eduardo Corrente
- Research Support Office, Botucatu Medical School, Sao Paulo State University (UNESP), Botucatu, São Paulo State, Brazil
| | - Tiago Rodrigues
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, São Paulo, SP, Brazil
| | - Gustavo Tadeu Volpato
- Laboratory of Experimental Research On Gynecology and Obstetrics, Postgraduate Course On Tocogynecology, Botucatu Medical School, São Paulo State University_UNESP, Botucatu, São Paulo State, Brazil
- Laboratory of System Physiology and Reproductive Toxicology, Federal University of Mato Grosso_UFMT, Mato Grosso State, Barra Do Garças, Brazil
| | - Débora Cristina Damasceno
- Laboratory of Experimental Research On Gynecology and Obstetrics, Postgraduate Course On Tocogynecology, Botucatu Medical School, São Paulo State University_UNESP, Botucatu, São Paulo State, Brazil.
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Behl S, Mehta S, Pandey MK. The role of selenoproteins in neurodevelopment and neurological function: Implications in autism spectrum disorder. Front Mol Neurosci 2023; 16:1130922. [PMID: 36969558 PMCID: PMC10034371 DOI: 10.3389/fnmol.2023.1130922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/17/2023] [Indexed: 03/29/2023] Open
Abstract
Selenium and selenoproteins play a role in many biological functions, particularly in brain development and function. This review outlines the role of each class of selenoprotein in human brain function. Most selenoproteins play a large antioxidant role within the brain. Autism spectrum disorder (ASD) has been shown to correlate with increased oxidative stress, and the presumption of selenoproteins as key players in ASD etiology are discussed. Further, current literature surrounding selenium in ASD and selenium supplementation studies are reviewed. Finally, perspectives are given for future directions of selenoprotein research in ASD.
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Affiliation(s)
- Supriya Behl
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, United States
- Center for Childhood Cancer Research, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Sunil Mehta
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, United States
| | - Mukesh K. Pandey
- Department of Radiology, Mayo Clinic, Rochester, MN, United States
- *Correspondence: Mukesh K. Pandey,
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Sherlock LG, McCarthy WC, Grayck MR, Solar M, Hernandez A, Zheng L, Delaney C, Tipple TE, Wright CJ, Nozik ES. Neonatal Selenium Deficiency Decreases Selenoproteins in the Lung and Impairs Pulmonary Alveolar Development. Antioxidants (Basel) 2022; 11:2417. [PMID: 36552625 PMCID: PMC9774937 DOI: 10.3390/antiox11122417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022] Open
Abstract
Decreased selenium (Se) levels during childhood and infancy are associated with worse respiratory health. Se is biologically active after incorporation into Se-containing antioxidant enzymes (AOE) and proteins. It is unknown how decreased maternal Se during pregnancy and lactation impacts neonatal pulmonary selenoproteins, growth, and lung development. Using a model of neonatal Se deficiency that limits Se intake to the dam during pregnancy and lactation, we evaluated which neonatal pulmonary selenoproteins are decreased in both the saccular (postnatal day 0, P0) and early alveolar (postnatal day 7, P7) stages of lung development. We found that Se deficient (SeD) pups weigh less and exhibit impaired alveolar development compared to Se sufficient (SeS) pups at P7. The activity levels of glutathione peroxidase (GPx) and thioredoxin reductase (Txnrd) were decreased at P0 and P7 in SeD lungs compared to SeS lungs. Protein content of GPx1, GPx3 and Txnrd1 were decreased in SeD lungs at P0 and P7, whereas Txnrd2 content was unaltered compared to SeS controls. The expression of NRF-2 dependent genes and several non-Se containing AOE were similar between SeS and SeD lungs. SeD lungs exhibited a decrease in selenoprotein N, an endoplasmic reticulum protein implicated in alveolar development, at both time points. We conclude that exposure to Se deficiency during pregnancy and lactation impairs weight gain and lung growth in offspring. Our data identify multiple selenoproteins in the neonatal lung that are vulnerable to decreased Se intake, which may impact oxidative stress and cell signaling under physiologic conditions as well as after oxidative stressors.
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Affiliation(s)
- Laura G. Sherlock
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - William C. McCarthy
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Maya R. Grayck
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Mack Solar
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Andres Hernandez
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Lijun Zheng
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Cassidy Delaney
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Trent E. Tipple
- Department of Pediatrics, University of Oklahoma College of Medicine, Oklahoma City, OK 73104, USA
| | - Clyde J. Wright
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Eva S. Nozik
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
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Manfredini M, Breschi M, Fornasin A, Esposito M. Maternal nutritional status and offspring childlessness: Evidence from the late-nineteenth to early-twentieth centuries in a group of Italian populations. POPULATION STUDIES 2022; 76:477-493. [PMID: 35899492 DOI: 10.1080/00324728.2022.2099566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The role of maternal nutrition in affecting offspring fertility, through alteration of foetal programming, has been demonstrated in animal-based experiments. However, results from human populations appear inconsistent and sometimes contradictory, likely because they have been based on single famine events. In this paper, we adopt a different approach. We combine official annual time series of daily nutrient availability with a sample of women's reproductive histories from the 1961 Italian Census to investigate the role of maternal nutritional status in pregnancy on offspring childlessness. The analysis therefore covers cohorts of females born between 1861 and 1939. Our results show a negative association between calorie availability in pregnancy and the odds of offspring childlessness, whereas no association is found between protein availability and offspring childlessness. The consequences of poor calorie intake were aggravated during the summer, likely due to the participation of pregnant women in physically demanding work.
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Ojeda ML, Nogales F, Carreras O, Pajuelo E, Gallego-López MDC, Romero-Herrera I, Begines B, Moreno-Fernández J, Díaz-Castro J, Alcudia A. Different Effects of Low Selenite and Selenium-Nanoparticle Supplementation on Adipose Tissue Function and Insulin Secretion in Adolescent Male Rats. Nutrients 2022; 14:nu14173571. [PMID: 36079831 PMCID: PMC9459699 DOI: 10.3390/nu14173571] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/20/2022] [Accepted: 08/26/2022] [Indexed: 11/23/2022] Open
Abstract
Adolescence is a period of intense growth and endocrine changes, and obesity and insulin-resistance processes during this period have lately been rising. Selenium (Se) homeostasis is related to lipid metabolism depending on the form and dose of Se. This study tests the actions of low-dose selenite and Se nanoparticles (SeNPs) on white (WAT) and brown adipose tissue (BAT) deposition, insulin secretion, and GPx1, IRS-1 and FOXO3a expression in the WAT of adolescent rats as regards oxidative stress, adipocyte length and adipokine secretion. Four groups of male adolescent rats were treated: control (C), low selenite supplementation (S), low SeNP supplementation (NS) and moderate SeNP supplementation (NSS). Supplementation was received orally through water intake; NS and NSS rats received two- and tenfold more Se than C animals, respectively. SeNPs were obtained by reducing Se tetrachloride in the presence of ascorbic acid. For the first time in vivo, it was demonstrated that low selenite supplementation contributed to increased adipogenesis via the insulin signaling pathway and LCN2 modulation, while low SeNP administration prevented fat depots in WAT via the decrease in insulin signaling and FOXO3a autophagy in WAT, lowering inflammation. These effects were independent of GPx1 expression or activity in WAT. These findings provide data for dietary approaches to prevent obesity and/or anorexia during adolescence. These findings may be relevant to future studies looking at a nutritional approach aimed at pre-venting obesity and/or anorexia in adolescence.
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Affiliation(s)
- María Luisa Ojeda
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Fátima Nogales
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
- Correspondence: ; Tel.: +34-954556518
| | - Olimpia Carreras
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Eloísa Pajuelo
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | | | - Inés Romero-Herrera
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Belén Begines
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Jorge Moreno-Fernández
- Department of Physiology, University of Granada, 18071 Granada, Spain
- Institute of Nutrition and Food Technology “José Mataix Verdú”, University of Granada, 18071 Granada, Spain
| | - Javier Díaz-Castro
- Department of Physiology, University of Granada, 18071 Granada, Spain
- Institute of Nutrition and Food Technology “José Mataix Verdú”, University of Granada, 18071 Granada, Spain
| | - Ana Alcudia
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
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Cheng W, Zhang L, Sa P, Luo J, Li M. Transcriptomic analysis reveals the effects of maternal selenium deficiency on placental transport, hormone synthesis, and immune response in mice. METALLOMICS : INTEGRATED BIOMETAL SCIENCE 2022; 14:6674774. [PMID: 36002020 DOI: 10.1093/mtomcs/mfac062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 08/19/2022] [Indexed: 11/14/2022]
Abstract
Selenium deficiency has been considered to increase the risk of gestational complications. Our previous work showed that maternal selenium deficiency suppressed proliferation, induced autophagy dysfunction and apoptosis in the placenta of mice. However, other effects of maternal selenium deficiency on the placenta and the underlying mechanisms remain unclear. In the present study, dietary selenium deficiency in dams significantly suppressed glutathione peroxidase (GSH-Px) activity, total antioxidant capacity (T-AOC), and increased malondialdehyde (MDA) content in the placentae, confirming the oxidative stress in the placenta. By transcriptome sequencing analysis, the DEGs were involved in many biological processes, including ion transport, lipid metabolic process, immune response, transmembrane transport, and others. According to the KEGG analysis, the DEGs were primarily enriched in metabolic pathways, PI3K-Akt signaling pathway, and others. Among these, the steroid hormone biosynthesis pathway enriched the most DEGs. Hsd3b1, an ER enzyme involved in progesterone synthesis, was validated downregulated. Consistently, the progesterone content in the serum of the selenium-deficient group was decreased. Ion transporters and transmembrane transporters, such as Heph, Trf, Slc39a8, Slc23a1, Atp7b, and Kcnc1, were reduced in the selenium-deficient placentae. Immune response-related genes, including Ccl3, Ccl8, Cxcl10, and Cxcl14, were increased in the selenium-deficient placentae, along with an increase in macrophage number. These results suggested that maternal selenium deficiency may impair progesterone biosynthesis, reduce nutrient transporters expression, and promote immune response by increasing the oxidative stress of the placentae. This present study provides a novel insight into the possible cause of placenta disorder during pregnancy.
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Affiliation(s)
- Wanpeng Cheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Lantian Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.,Department of Anatomy, Basic Medical College, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Peiyue Sa
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.,Department of Anatomy, Basic Medical College, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Jing Luo
- Department of Clinical Medicine, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Mengdi Li
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.,Department of Anatomy, Basic Medical College, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
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11
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Nguyen-Ngo C, Perkins AV, Lappas M. Selenium Prevents Inflammation in Human Placenta and Adipose Tissue In Vitro: Implications for Metabolic Diseases of Pregnancy Associated with Inflammation. Nutrients 2022; 14:nu14163286. [PMID: 36014792 PMCID: PMC9416138 DOI: 10.3390/nu14163286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Gestational diabetes mellitus (GDM) and maternal obesity are significant metabolic complications increasingly prevalent in pregnancy. Of major concern, both GDM and maternal obesity can have long-term detrimental impacts on the health of both mother and offspring. Recent research has shown that increased inflammation and oxidative stress are two features central to the pathophysiology of these metabolic conditions. Evidence suggests selenium supplementation may be linked to disease prevention in pregnancy; however, the specific effects of selenium on inflammation and oxidative stress associated with GDM and maternal obesity are unknown. Therefore, this study aimed to investigate the effect of selenium supplementation on an in vitro model of GDM and maternal obesity. Human placental tissue, visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) were stimulated with either the bacterial product lipopolysaccharide (LPS) or the pro-inflammatory cytokine TNF-α. Selenium pre-treatment blocked LPS and TNF-α induced mRNA expression and secretion of pro-inflammatory cytokines and chemokines, while increasing anti-inflammatory cytokine and antioxidant mRNA expression in placenta, VAT and SAT. Selenium pre-treatment was also found to inhibit LPS- and TNF-α induced phosphorylation of ERK in placenta, VAT and SAT. These findings indicate that selenium may be able to prevent inflammation and oxidative stress associated with GDM and maternal obesity. Additional in vivo studies are required to identify the efficacy of selenium supplementation in preventing inflammatory pathways activated by GDM and maternal obesity and to elucidate the mechanism involved.
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Affiliation(s)
- Caitlyn Nguyen-Ngo
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of Melbourne, Parkville 3010, Australia
- Mercy Perinatal Research Centre, Melbourne 3084, Australia
| | - Anthony V. Perkins
- School of Pharmacy and Medical Sciences, Gold Coast Campus, Griffith University, Adelaide 9726, Australia
- Correspondence:
| | - Martha Lappas
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of Melbourne, Parkville 3010, Australia
- Mercy Perinatal Research Centre, Melbourne 3084, Australia
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12
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Tartaglione AM, Serafini MM, Ferraris F, Raggi A, Mirabello A, Di Benedetto R, Ricceri L, Midali M, Cubadda F, Minghetti L, Viviani B, Calamandrei G. Short- and Long-Term Effects of Suboptimal Selenium Intake and Developmental Lead Exposure on Behavior and Hippocampal Glutamate Receptors in a Rat Model. Nutrients 2022; 14:nu14163269. [PMID: 36014775 PMCID: PMC9416673 DOI: 10.3390/nu14163269] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 12/03/2022] Open
Abstract
Selenium (Se) is an essential trace element required for normal development as well as to counteract the adverse effects of environmental stressors. Conditions of low Se intake are present in some European countries. Our aim was to investigate the short- and long-term effects of early-life low Se supply on behavior and synaptic plasticity with a focus on the hippocampus, considering both suboptimal Se intake per se and its interaction with developmental exposure to lead (Pb). We established an animal model of Se restriction and low Pb exposure; female rats fed with an optimal (0.15 mg/kg) or suboptimal (0.04 mg/kg) Se diet were exposed from one month pre-mating until the end of lactation to 12.5 µg/mL Pb via drinking water. In rat offspring, the assessment of motor, emotional, and cognitive endpoints at different life stages were complemented by the evaluation of the expression and synaptic distribution of NMDA and AMPA receptor subunits at post-natal day (PND) 23 and 70 in the hippocampus. Suboptimal Se intake delayed the achievement of developmental milestones and induced early and long-term alterations in motor and emotional abilities. Behavioral alterations were mirrored by a drop in the expression of the majority of NMDA and AMPA receptor subunits analyzed at PND 23. The suboptimal Se status co-occurring with Pb exposure induced a transient body weight increase and persistent anxiety-like behavior. From the molecular point of view, we observed hippocampal alterations in NMDA (Glun2B and GluN1) and AMPA receptor subunit trafficking to the post-synapse in male rats only. Our study provides evidence of potential Se interactions with Pb in the developing brain.
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Affiliation(s)
- Anna Maria Tartaglione
- Centre for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità (ISS), 00161 Rome, RM, Italy
| | - Melania Maria Serafini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, 20126 Milan, ML, Italy
| | - Francesca Ferraris
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità (ISS), 00161 Rome, RM, Italy
| | - Andrea Raggi
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità (ISS), 00161 Rome, RM, Italy
| | - Annalisa Mirabello
- Centre for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità (ISS), 00161 Rome, RM, Italy
| | - Rita Di Benedetto
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità (ISS), 00161 Rome, RM, Italy
| | - Laura Ricceri
- Centre for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità (ISS), 00161 Rome, RM, Italy
| | - Miriam Midali
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, 20126 Milan, ML, Italy
| | - Francesco Cubadda
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità (ISS), 00161 Rome, RM, Italy
| | - Luisa Minghetti
- Research Coordination and Support Service, Istituto Superiore di Sanità (ISS), 00161 Rome, RM, Italy
| | - Barbara Viviani
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, 20126 Milan, ML, Italy
- Correspondence:
| | - Gemma Calamandrei
- Centre for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità (ISS), 00161 Rome, RM, Italy
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13
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Wu S, Chen N, Tong X, Xu X, Chen Q, Wang F. Selenium attenuates the cadmium-induced placenta glucocorticoid barrier damage by up-regulating the expression of specificity protein 1. J Biochem Mol Toxicol 2022; 36:e23056. [PMID: 35384129 DOI: 10.1002/jbt.23056] [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: 03/04/2021] [Revised: 01/26/2022] [Accepted: 03/02/2022] [Indexed: 11/09/2022]
Abstract
Cadmium (Cd) is an environmental pollutant and pregnant women are especially susceptible to the effects of exposure to Cd. Our previous study found Cd can be accumulated in the placenta and causes fetal growth restriction (FGR) through damage the placental glucocorticoid barrier. Selenium (Se), as an essential micronutrient, can allivate Cd-induced toxicity. In this study, we aim to explore the protective mechanism of Se against Cd-induced the placental glucocorticoid barrier damage and FGR. Pregnant Sprague Dawley (SD) rats were exposed to CdCl2 (1 mg/kg/day) and Na2 SeO3 (0.1-0.2-0.3 mg/kg/day) by gavage from gestational day (GD) 0 to GD 19. The results showed that reduced fetal weight, increased corticosterone concentrations in the maternal and fetal serum, and impaired placental labyrinth layer blood vessel development, appeared in pregnant rats after Cd exposure and improved after treated with Se. In cell experiments, we confirmed that Se reduces Cd-induced apoptosis. Moreover, Se can abolish Cd-induced 11β-HSD2 and specificity protein 1 (Sp1) decreasing in vivo and vitro. In human JEG-3 cells, the knockdown of Sp1 expression by small interfering RNA can suppressed the protective effect of Se on Cd-induced 11β-HSD2 decreasing. In general, our results demonstrated that Se is resistant to Cd-induced FGR through upregulating the placenta barrier via activation of the transcription factor Sp1.
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Affiliation(s)
- Sisi Wu
- Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Na Chen
- Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xia Tong
- Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xu Xu
- Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qihui Chen
- Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Fan Wang
- Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China
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14
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Shekhawat DS, Singh P, Sharma P, Singh K. Comment: Do Maternal Micronutrient Deficiencies Program the Body Composition and Behavior of the Offspring? Probable Underlying Mechanisms. ANNALS OF THE NATIONAL ACADEMY OF MEDICAL SCIENCES (INDIA) 2022. [DOI: 10.1055/s-0042-1743135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Affiliation(s)
- Dolat Singh Shekhawat
- Department of Pediatrics, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
| | - Pratibha Singh
- Department of Obstetrics and Gynaecology, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
| | - Praveen Sharma
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
| | - Kuldeep Singh
- Department of Pediatrics, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
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15
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Gustin K, Vahter M, Barman M, Jacobsson B, Skröder H, Filipsson Nyström H, Sandin A, Sandberg AS, Wold AE, Kippler M. Assessment of Joint Impact of Iodine, Selenium, and Zinc Status on Women's Third-Trimester Plasma Thyroid Hormone Concentrations. J Nutr 2022; 152:1737-1746. [PMID: 35383840 PMCID: PMC9258587 DOI: 10.1093/jn/nxac081] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/02/2022] [Accepted: 03/31/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Iodine is essential for synthesizing thyroid hormones, but other micronutrients are also required for optimal thyroid function. However, there is a lack of data on combined micronutrient status in relation to thyroid hormones in pregnancy. OBJECTIVES We aimed to assess the joint associations of iodine, selenium, and zinc status with plasma concentrations of thyroid hormones and thyroid-stimulating hormone (TSH) in pregnancy. METHODS We included 531 pregnant women (aged 22-40 y) participating in a Swedish birth cohort who provided blood and spot urine samples in gestational weeks 27-33 (mean: 29). Associations of urinary iodine concentration (UIC), plasma selenium concentration, and plasma zinc concentration (measured by inductively coupled plasma mass spectrometry) with plasma hormone concentrations [total and free thyroxine (tT4, fT4), total and free triiodothyronine (tT3, fT3), and TSH] were explored with Bayesian kernel machine regression (BKMR; n = 516; outliers excluded) and multivariable-adjusted linear regression (n = 531; splined for nonlinear associations). RESULTS Median (IQR) micronutrient concentrations were 112 μg/L (80-156 μg/L) for UIC, 67 μg/L (58-76 μg/L) for plasma selenium, and 973 μg/L (842-1127 μg/L) for plasma zinc; the former 2 median values were below recommended concentrations (150 μg/L and 70 μg/L, respectively). Mean ± SD TSH concentration was 1.7 ± 0.87 mIU/L, with 98% < 4 mIU/L. BKMR showed a positive trend of joint micronutrient concentrations in relation to TSH. Plasma zinc was most influential for all hormones but tT3, for which plasma selenium was most influential. In adjusted linear regression models, zinc was positively associated with tT4, tT3, and TSH, and <1200 μg/L also with fT4 and fT3. Selenium was inversely associated with fT3, and <85 μg/L with tT3. CONCLUSIONS Pregnant women's plasma TSH concentrations in the early third trimester increased with increasing joint status of iodine, selenium, and zinc. Zinc and selenium were more influential than iodine for the hormone concentrations. Multiple micronutrients need consideration in future studies of thyroid hormone status.
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Affiliation(s)
- Klara Gustin
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Marie Vahter
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Malin Barman
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden,Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Institute of Clinical Science, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,Department of Obstetrics and Gynecology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Helena Skröder
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Helena Filipsson Nyström
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,Department of Endocrinology, Specialized Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden,Wallenberg's Centre for Molecular and Translational Medicine, Sahlgrenska University Hopsital, Gothenburg, Sweden
| | - Anna Sandin
- Department of Clinical Science, Pediatrics, Sunderby Research Unit, Umeå University, Umeå, Sweden
| | - Ann-Sofie Sandberg
- Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Agnes E Wold
- Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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16
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Hofstee P, Perkins AV, Cuffe JSM. Selenium Deficiency during Pregnancy in Mice Impairs Exercise Performance and Metabolic Function in Adult Offspring. Nutrients 2022; 14:1125. [PMID: 35268100 PMCID: PMC8912302 DOI: 10.3390/nu14051125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/24/2022] [Accepted: 03/02/2022] [Indexed: 12/04/2022] Open
Abstract
Selenium deficiency during the perinatal period programs metabolic dysfunction in offspring. Postnatal exercise may prevent the development of programmed metabolic disease. This study investigated the impact of selenium deficiency on offspring exercise behavior and whether this improved metabolic health. Female C57BL/6 mice were randomly allocated to control (NormalSe, >190 μg/Se/kg, n = 8) or low-selenium (LowSe, <50 μg/Se/kg, n = 8) diets from four weeks before mating. Male offspring were weaned at postnatal day (PN) twenty-four and placed on a normal chow diet. At PN60, mice were placed in cages with bi-directional running wheels and monitored until PN180. LowSe offspring had a reduced average weekly running speed and distance (p < 0.05). LowSe offspring exhibited glucose intolerance, with increased peak blood glucose (p < 0.05) and area under the curve following an intra-peritoneal injection of glucose (p < 0.05). Furthermore, mRNA expression of several selenoproteins within cardiac and skeletal muscle were increased in LowSe offspring (p < 0.05). The results indicated that selenium deficiency during development reduces exercise behavior. Furthermore, exercise does not prevent programmed glucose intolerance in low-selenium offspring. This highlights that exercise may not be the optimal intervention for metabolic disease in offspring impacted by selenium deficiency in early life.
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Affiliation(s)
- Pierre Hofstee
- School of Medical Science, Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, Southport, QLD 4215, Australia; (P.H.); (A.V.P.)
| | - Anthony V. Perkins
- School of Medical Science, Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, Southport, QLD 4215, Australia; (P.H.); (A.V.P.)
| | - James S. M. Cuffe
- The School of Biomedical Sciences, The University of Queensland, St. Lucia, QLD 4072, Australia
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17
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Helman SL, Wilkins SJ, McKeating DR, Perkins AV, Cuffe JSM, Hartel G, Faria N, Powell JJ, Anderson GJ, Frazer DM. A Novel Ferritin-Core Analog Is a Safe and Effective Alternative to Oral Ferrous Iron for Treating Iron Deficiency during Pregnancy in Mice. J Nutr 2022; 152:714-722. [PMID: 34625812 DOI: 10.1093/jn/nxab363] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/06/2021] [Accepted: 10/01/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Many women enter pregnancy with iron stores that are insufficient to maintain maternal iron balance and support fetal development and consequently, often require iron supplements. However, the side effects associated with many currently available iron supplements can limit compliance. OBJECTIVE This study aimed to test the safety and efficacy of a novel nanoparticulate iron supplement, a dietary ferritin analog termed iron hydroxide adipate tartrate (IHAT), in pregnant mice. METHODS Female C57BL/6 mice were maintained on either an iron-deficient or a control diet for 2 wk prior to timed mating to develop iron-deficient or iron-sufficient pregnancy models, respectively. Mice from each model were then gavaged daily with 10 mg iron/kg body weight as either IHAT or ferrous sulfate, or with water only, beginning on embryonic day (E) 4.5. Mice were killed on E18.5 and maternal iron and hematological parameters were measured. The expression of genes encoding iron transporters and oxidative stress markers in the duodenum and placenta were determined, along with hepatic expression of the gene encoding the iron regulatory hormone hepcidin and fetal iron. RESULTS Oral IHAT and ferrous sulfate were equally effective at increasing maternal hemoglobin (20.2% and 16.9%, respectively) and hepatic iron (30.2% and 29.3%, respectively), as well as total fetal iron (99.7% and 83.8%, respectively), in iron-deficient pregnant mice compared with those gavaged with water only, with no change in oxidative stress markers seen with either treatment. However, there was a significant increase in the placental expression of the oxidative stress marker heme oxygenase 1 in iron-replete pregnant mice treated with ferrous sulfate when compared with iron-replete pregnant mice gavaged with IHAT (96.9%, P <0.05). CONCLUSIONS IHAT has proved a safe and effective alternative to oral ferrous sulfate in mice, and it has potential for treating iron deficiency in human pregnancy.
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Affiliation(s)
- Sheridan L Helman
- Molecular Nutrition Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,School of Medicine, The University of Queensland, St Lucia, Australia
| | - Sarah J Wilkins
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Daniel R McKeating
- School of Pharmacy and Medical Sciences, Griffith University, Southport, Australia
| | - Anthony V Perkins
- School of Pharmacy and Medical Sciences, Griffith University, Southport, Australia
| | - James S M Cuffe
- School of Biomedical Sciences, The University of Queensland, St Lucia, Australia
| | - Gunter Hartel
- Statistics Unit, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Nuno Faria
- Biomineral Research Group, Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Jonathan J Powell
- Biomineral Research Group, Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Gregory J Anderson
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,School of Chemistry and Molecular Bioscience, The University of Queensland, St Lucia, Australia
| | - David M Frazer
- Molecular Nutrition Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,School of Biomedical Sciences, The University of Queensland, St Lucia, Australia.,School of Biomedical Sciences, The Queensland University of Technology, Gardens Point, Australia
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18
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Garí M, Grzesiak M, Krekora M, Kaczmarek P, Jankowska A, Król A, Kaleta D, Jerzyńska J, Janasik B, Kuraś R, Tartaglione AM, Calamandrei G, Hanke W, Polańska K. Prenatal exposure to neurotoxic metals and micronutrients and neurodevelopmental outcomes in early school age children from Poland. ENVIRONMENTAL RESEARCH 2022; 204:112049. [PMID: 34520749 DOI: 10.1016/j.envres.2021.112049] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/16/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
Exposure to environmental factors, such as neurotoxic metals and micronutrients, during critical periods of development can contribute to long-term consequences in offspring's health, including neurodevelopmental outcomes. The aim of this study was to evaluate the association between simultaneous prenatal exposure to metals [lead (Pb), cadmium (Cd), mercury (Hg)] and micronutrients [selenium (Se), zinc (Zn), copper (Cu)] and neurodevelopmental outcomes in school-age children from the Polish Mother and Child Cohort (REPRO_PL). Metals and micronutrients concentrations were measured in cord blood (Pb, Cd, Se, Zn, Cu) and in maternal hair (Hg) collected during the 3rd trimester of pregnancy. Behavioral and emotional problems, as well as children's cognitive and psychomotor development, were assessed in 436 school-age children using the Strengths and Difficulties Questionnaire (SDQ, filled in by the mothers) and the Polish adaptation of the Intelligence and Development Scales (IDS, administered by trained psychologists). Multivariate regression models were applied after imputation of missing values, using two approaches: (i) a joint analysis taking into account all metals and micronutrients simultaneously, and (ii) an ExWAS study (single-exposure model). In the SDQ, Hyperactivity/Inattention problems and Total difficulties were associated with higher Hg concentrations in maternal hair (0.18, 95% CI: 0.05; 0.3; and 0.14, 95% CI: 0.01; 0.3, respectively), whereas Emotional symptoms were inversely associated with Se and Zn levels in cord blood (-0.13, 95% CI: -0.3; 0.004; and -0.10, 95% CI: -0.2; 0.02, respectively). In the IDS, cord blood Pb levels were found to be negatively associated with Fluid and Crystallized IQ (-0.12, 95% CI: -0.3; 0.02; and -0.14, 95% CI: -0.3; 0.007, respectively) as well as Mathematical skills (-0.15, 95% CI: -0.3; 0.01). The current research has been able to simultaneously assess the exposure to various interacting chemicals during the prenatal period. We demonstrate that prenatal co-exposures to Pb, Hg, Zn and Se have long-term influences on the neuropsychological outcome of school-age children.
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Affiliation(s)
- Mercè Garí
- Institute of Computational Biology, German Research Center for Environmental Health, Neuherberg, Germany.
| | - Mariusz Grzesiak
- Department of Perinatology, Obstetrics and Gynecology, "Polish Mother's Memorial Hospital" Research Institute, Lodz, Poland; Department of Gynecology and Obstetrics, IInd Chair of Gynecology and Obstetrics, Medical University of Lodz, Poland.
| | - Michał Krekora
- Department of Gynecology and Obstetrics, IInd Chair of Gynecology and Obstetrics, Medical University of Lodz, Poland; Department of Obstetrics and Gynecology, "Polish Mother's Memorial Hospital" Research Institute, Lodz, Poland.
| | - Piotr Kaczmarek
- Department of Perinatology, Obstetrics and Gynecology, "Polish Mother's Memorial Hospital" Research Institute, Lodz, Poland.
| | - Agnieszka Jankowska
- Department of Environmental and Occupational Health Hazards, Nofer Institute of Occupational Medicine, Lodz, Poland.
| | - Anna Król
- Department of Environmental and Occupational Health Hazards, Nofer Institute of Occupational Medicine, Lodz, Poland.
| | - Dorota Kaleta
- Department of Hygiene and Epidemiology, Medical University of Lodz, Poland.
| | - Joanna Jerzyńska
- Department of Paediatrics and Allergy, Copernicus Memorial Hospital, Medical University of Lodz, Poland.
| | - Beata Janasik
- Department of Biological and Environmental Monitoring, Nofer Institute of Occupational Medicine, Lodz, Poland.
| | - Renata Kuraś
- Department of Biological and Environmental Monitoring, Nofer Institute of Occupational Medicine, Lodz, Poland.
| | - Anna Maria Tartaglione
- Centre for Behavioural Sciences and Mental Health, National Institute of Health, Rome, Italy.
| | - Gemma Calamandrei
- Centre for Behavioural Sciences and Mental Health, National Institute of Health, Rome, Italy.
| | - Wojciech Hanke
- Department of Environmental Epidemiology, Nofer Institute of Occupational Medicine, Lodz, Poland.
| | - Kinga Polańska
- Department of Environmental and Occupational Health Hazards, Nofer Institute of Occupational Medicine, Lodz, Poland; Department of Hygiene and Epidemiology, Medical University of Lodz, Poland.
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19
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Ojeda ML, Carreras O, Nogales F. The Role of Selenoprotein Tissue Homeostasis in MetS Programming: Energy Balance and Cardiometabolic Implications. Antioxidants (Basel) 2022; 11:antiox11020394. [PMID: 35204276 PMCID: PMC8869711 DOI: 10.3390/antiox11020394] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/11/2022] [Accepted: 02/12/2022] [Indexed: 11/16/2022] Open
Abstract
Selenium (Se) is an essential trace element mainly known for its antioxidant, anti-inflammatory, and anti-apoptotic properties, as it is part of the catalytic center of 25 different selenoproteins. Some of them are related to insulin resistance (IR) and metabolic syndrome (MetS) generation, modulating reactive oxygen species (ROS), and the energetic sensor AMP-activated protein kinase (AMPK); they can also regulate the nuclear transcription factor kappa-B (NF-kB), leading to changes in inflammation production. Selenoproteins are also necessary for the correct synthesis of insulin and thyroid hormones. They are also involved in endocrine central regulation of appetite and energy homeostasis, affecting growth and development. MetS, a complex metabolic disorder, can appear during gestation and lactation in mothers, leading to energetic and metabolic changes in their offspring that, according to the metabolic programming theory, will produce cardiovascular and metabolic diseases later in life. However, there is a gap concerning Se tissue levels and selenoproteins’ implications in MetS generation, which is even greater during MetS programming. This narrative review also provides an overview of the existing evidence, based on experimental research from our laboratory, which strengthens the fact that maternal MetS leads to changes in Se tissue deposits and antioxidant selenoproteins’ expression in their offspring. These changes contribute to alterations in tissues’ oxidative damage, inflammation, energy balance, and tissue function, mainly in the heart. Se imbalance also could modulate appetite and endocrine energy balance, affecting pups’ growth and development. MetS pups present a profile similar to that of diabetes type 1, which also appeared when dams were exposed to low-Se dietary supply. Maternal Se supplementation should be taken into account if, during gestation and/or lactation periods, there are suspicions of endocrine energy imbalance in the offspring, such as MetS. It could be an interesting therapy to induce heart reprogramming. However, more studies are necessary.
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Hogan C, Perkins AV. Selenoproteins in the Human Placenta: How Essential Is Selenium to a Healthy Start to Life? Nutrients 2022; 14:nu14030628. [PMID: 35276987 PMCID: PMC8838303 DOI: 10.3390/nu14030628] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 12/17/2022] Open
Abstract
Selenium is an essential trace element required for human health, and selenium deficiency has been associated with many diseases. The daily recommended intake of selenium is 60 µg/day for adults, which increases to 65 µg/day for women when pregnant. Selenium is incorporated into the 21st amino acid, selenocysteine (sec), a critical component of selenoproteins that plays an important role in a variety of biological responses such as antioxidant defence, reactive oxygen species (ROS) signalling, formation of thyroid hormones, DNA synthesis and the unfolded protein response in the endoplasmic reticulum (ER). Although 25 selenoproteins have been identified, the role of many of these is yet to be fully characterised. This review summarises the current evidence demonstrating that selenium is essential for a healthy pregnancy and that poor selenium status leads to gestational disorders. In particular, we focus on the importance of the placental selenoproteome, and the role these proteins may play in a healthy start to life.
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21
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Carvalho DP, Dias AF, Sferruzzi-Perri AN, Ortiga-Carvalho TM. Gaps in the knowledge of thyroid hormones and placental biology. Biol Reprod 2022; 106:1033-1048. [DOI: 10.1093/biolre/ioac006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 11/14/2022] Open
Abstract
Abstract
Thyroid hormones (THs) are required for the growth and development of the foetus, stimulating anabolism and oxygen consumption from the early stages of pregnancy to the period of foetal differentiation close to delivery. Maternal changes in the hypothalamic–pituitary thyroid axis are also well known. In contrast, several open questions remain regarding the relationships between the placenta and the maternal and foetal TH systems. The exact mechanism by which the placenta participates in regulating the TH concentration in the foetus and mother and the role of TH in the placenta are still poorly studied. In this review, we aim to summarize the available data in the area and highlight significant gaps in our understanding of the ontogeny and cell-specific localization of TH transporters, TH receptors and TH metabolic enzymes in the placenta in both human and rodent models. Significant deficiencies also exist in knowledge of the contribution of genomic and nongenomic effects of TH on the placenta and finally how the placenta reacts during pregnancy when the mother has thyroid disease. By addressing these key knowledge gaps, improved pregnancy outcomes and management of women with thyroid alterations may be possible.
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Affiliation(s)
- Daniela Pereira Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Laboratório de Endocrinologia Translacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ariane Fontes Dias
- Instituto de Biofísica Carlos Chagas Filho, Laboratório de Endocrinologia Translacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Amanda Nancy Sferruzzi-Perri
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, UK
| | - Tania Maria Ortiga-Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Laboratório de Endocrinologia Translacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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22
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Wang J, Cao LL, Gao ZY, Zhang H, Liu JX, Wang SS, Pan H, Yan CH. Relationship between thyroid hormone parameters and exposure to a mixture of organochlorine pesticides, mercury and nutrients in the cord blood of newborns. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118362. [PMID: 34648836 DOI: 10.1016/j.envpol.2021.118362] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/08/2021] [Accepted: 10/10/2021] [Indexed: 06/13/2023]
Abstract
The fetus is prenatally exposed to a mixture of organochlorine pesticides (OCPs), mercury (Hg), docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA) and selenium (Se) through maternal seafood consumption in real-life scenario. Prenatal exposure to these contaminants and nutrients has been suggested to affect thyroid hormone (TH) status in newborns, but the potential relationships between them are unclear and the joint effects of the mixture are seldom analyzed. The aim of the study is to investigate the associations of prenatal exposure to a mixture of OCPs, Hg, DHA, EPA and Se with TH parameters in newborns. 228 mother-infant pairs in Shanghai, China were included. We measured 20 OCPs, total Hg, DHA, EPA and Se in cord blood samples as exposure variables. The total thyroxine (TT4), free thyroxine (FT4), total triiodothyronine (TT3), free triiodothyronine (FT3), and thyroid-stimulating hormone (TSH) levels and the FT3/FT4 ratio in cord serum were determined as outcomes. Using linear regression models, generalized additive models and Bayesian kernel machine regression, we found dose-response relationships of the mixture component with outcomes: among the contaminants, p,p'-DDE was the most important positive predictor of TT3, while HCB was predominantly positively associated with FT3 and the FT3/FT4 ratio, indicating different mechanisms underlying these relationships; among the nutrients, EPA was first found to be positively related to the FT3/FT4 ratio. Additionally, we found suggestive evidence of interactions between p,p'-DDE and HCB on both TT3 and FT3, and EPA by HCB interactions for TT3, FT3 and FT3/FT4 ratio. However, the overall effects of the mixture on thyroid hormone parameters were not significant. Our result suggests that prenatal exposure to p,p'-DDE, HCB and EPA as part of a mixture might affect thyroid function of newborns in independent and interactive ways. The potential biological mechanisms merit further investigation.
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Affiliation(s)
- Ju Wang
- School of Nursing and Rehabilitation, Shandong University, Jinan, Shandong, 250012, China
| | - Lu-Lu Cao
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Zhen-Yan Gao
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China; Department of Gynaecology and Obstetrics, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Hong Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Jun-Xia Liu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Su-Su Wang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Hui Pan
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Chong-Huai Yan
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
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23
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Atazadegan MA, Heidari-Beni M, Riahi R, Kelishadi R. Association of selenium, zinc and copper concentrations during pregnancy with birth weight: A systematic review and meta-analysis. J Trace Elem Med Biol 2022; 69:126903. [PMID: 34823102 DOI: 10.1016/j.jtemb.2021.126903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 10/02/2021] [Accepted: 11/15/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Normal fetal growth is associated with maternal nutrition. Trace elements play important roles in fetus growth. This review aims to provide a summary of the literature evaluating the relation between selenium, zinc and copper levels during pregnancy with birth weight. METHOD A systematic literature search was conducted in Medline database (PubMed), Scopus, Web of science and Google scholar up to September 2020. Fifty observational studies were included in the final analyses. The desired pooled effect size was considered as standardized mean differences with 95 % CI or correlation. Cochran's Q statistic was used to test the heterogeneity between the included studies (I2). RESULT A significant differences were found between pooled standardized mean differences (SMD) of umbilical cord blood copper levels in small-for-gestational age birth weight (SGA) and appropriate-for-gestational age birth weight (AGA) (SMD: 0.34 μg/L, 95 % CI: 0.13 to 0.56). There was a significant pooled correlation between umbilical cord blood selenium concentrations and birth weight (r: 0.08, 95 % CI: 0.01 to 0.16). A significant pooled correlation was found between umbilical cord blood zinc concentrations and birth weight (r: 0.09, 95 % CI: 0.04 to 0.15), with significant heterogeneity (I2 % = 0.63). There was significant positive association between maternal blood zinc concentrations and birth weight. CONCLUSION Findings showed the association of trace elements including selenium, zinc and copper during pregnancy with birth weight. There was significant correlation between umbilical cord and maternal blood selenium and zinc levels with birth weight. The umbilical cord blood copper levels in SGA birth weight was higher than copper levels in AGA birth weight.
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Affiliation(s)
- Mohammad Amin Atazadegan
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Motahar Heidari-Beni
- Department of Nutrition, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Roya Riahi
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Roya Kelishadi
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
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24
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Alhazza IM, Ebaid H, Omar MS, Hassan I, Habila MA, Al-Tamimi J, Sheikh M. Supplementation with selenium nanoparticles alleviates diabetic nephropathy during pregnancy in the diabetic female rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:5517-5525. [PMID: 34420167 DOI: 10.1007/s11356-021-15905-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
The bioactivity of nanoparticles has engendered a promise in scientific communities for developing novel therapeutic strategies. This study investigated the protective effects of selenium nanoparticles (SeNPs) against kidney injury in streptozocin-induced diabetes during pregnant (DDP) rats. The female rats were separated into three groups (n = 8). Group 1 received the vehicle, normal saline. Group 2 received a single intraperitoneal dose of 50 mg/kg of streptozocin. Group 3 received a single intraperitoneal injection of 50 mg/kg of streptozocin, followed by treatment with SeNPs at a dose of 2.5 mg/kg twice a week for 6 weeks (1 week before gestation and continuing for 5 additional weeks). The structure formed by the fabricated SeNPs with citric acid in the presence of ascorbic acid indicated that nano-Se was associated with a carbon matrix. The diabetic group suffered from polyuria, a reduction in body weight, delayed gestation, and only 40% successful pregnancy compared with the control rats. Interestingly, SeNPs significantly reduced the rate of urination, accelerated the start of gestation, and increased the percentage of successful pregnancy in females with DM. Severe changes were observed in the pancreatic β-cells of the diabetic rats, with darkly stained and fragmented chromatin in nuclei, while SeNPs partially restored the normal morphological features of the pancreatic β-cells. The concentrations of urea, creatinine, MDA, and glucose were significantly increased in the diabetic rats, while GSH was significantly reduced compared with controls. Interestingly, SeNPs restored all of these parameters to values at or near control levels. SeNPs were capable of improving the histological structure of the kidney in mothers with DDP. Hence, the present work is relevant to GDM demonstrating SeNPs shielding the kidney structure and function in vivo.
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Affiliation(s)
- Ibrahim M Alhazza
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hossam Ebaid
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mohamed S Omar
- Department of Chemistry, Faculty of Science, Benha University, Benha, 13508, Egypt
| | - Iftekhar Hassan
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
| | - Mohamed A Habila
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Jameel Al-Tamimi
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mohamed Sheikh
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
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25
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Barsby JP, Cowley JM, Leemaqz SY, Grieger JA, McKeating DR, Perkins AV, Bastian SEP, Burton RA, Bianco-Miotto T. Nutritional properties of selected superfood extracts and their potential health benefits. PeerJ 2021; 9:e12525. [PMID: 34900436 PMCID: PMC8628624 DOI: 10.7717/peerj.12525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 10/29/2021] [Indexed: 11/20/2022] Open
Abstract
Background The term 'superfoods' is used to market foods considered to have significant health benefits. 'Superfoods' are claimed to prevent diseases as well as improving overall health, though the lack of explicit criteria means that any food can be labelled 'super' without support from scientific research. Typically, these 'superfoods' are rich in a particular nutrient for example antioxidants or omega-3 fatty acids. The objective of this study was to investigate the nutritional properties of a selection of superfood seeds: flax, chia, hulled sunflower and two types of processed hemp seeds and determine whether they may have potential health benefits. Methods We developed a simple aqueous extraction method for ground seeds and analysed their composition by mineral, protein and monosaccharide analyses. Cell viability assays were performed on Caco-2 and IEC-6 intestinal epithelial cells using increasing doses of the prepared extracts. Results Increased cell viability was observed in both cell lines with increasing concentrations of the flax seed, chia seed or hulled sunflower extracts (P < 0.05). Compositional analyses revealed the presence of polysaccharides, proteins and essential minerals in the aqueous extracts and in vitro assays showed sunflower had the highest antioxidant activity. However, differences in extract composition and antioxidant properties could not be directly related to the observed increase in cell viability suggesting that other components in the extracts may be responsible. Future studies will further characterize these extracts and investigate whether they are beneficial for gastrointestinal health.
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Affiliation(s)
- Jacqueline P Barsby
- Waite Research Institute and School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - James M Cowley
- Waite Research Institute and School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA, Australia
| | - Shalem Y Leemaqz
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia.,College of Medicine and Public Health, Flinders University of South Australia, Bedford Park, SA, Australia
| | - Jessica A Grieger
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia.,Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Daniel R McKeating
- School of Medical Science, Griffith University, Southport, QLD, Australia
| | - Anthony V Perkins
- School of Medical Science, Griffith University, Southport, QLD, Australia
| | - Susan E P Bastian
- Waite Research Institute and School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA, Australia
| | - Rachel A Burton
- Waite Research Institute and School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA, Australia
| | - Tina Bianco-Miotto
- Waite Research Institute and School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
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26
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Li M, Cheng W, Zhang L. Maternal selenium deficiency suppresses proliferation, induces autophagy dysfunction and apoptosis in the placenta of mice. Metallomics 2021; 13:6406492. [PMID: 34669944 DOI: 10.1093/mtomcs/mfab058] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/10/2021] [Indexed: 12/16/2022]
Abstract
Selenium deficiency is thought to be associated with the occurrence of gestational complications. However, the underlying mechanism of selenium deficiency impairs placental function remains unclear. In this study, female mice were separately supplemented with a Se-deficient (0.02 mg/kg Se) or control diet (0.2 mg/kg Se) for 12 weeks before mating and throughout gestation. Maternal liver and placentas were collected at embryonic day 15.5 and analyzed for Se content. Oxidative stress status, proliferation capability, autophagy, and apoptosis of the placenta were determined. We found that maternal selenium deficiency decreased placental Se concentration and some antioxidant selenoproteins expressions. The concentrations of catalase and glutathione in selenium-deficient placentas were reduced, along with an increase in hydrogen peroxide (H2O2) content. Selenium deficiency inhibited the expression of proliferating cell nuclear antigen. Autophagosomes, autophagolysosomes, and upregulation of autophagy-related protein microtubule-associated protein 1 light chain 3 alpha II (LC3B), Beclin1, PTEN-induced putative kinase 1 (PINK1), and Parkin were found in the selenium-deficient trophoblasts. Autophagic substrate p62/sequestosome 1 was surprisingly increased, indicating autophagy flux dysfunction. Selenium deficiency increased expressions of B cell leukemia/lymphoma 2 associated X protein (Bax), cleaved caspase-9/-3, and decreased the B cell leukemia/lymphoma 2 (Bcl2) level. Moreover, typical apoptotic ultrastructure and apoptosis-positive cells were observed in the selenium-deficient placenta. Our results suggested that maternal selenium deficiency impaired placental proliferation, induced autophagy dysfunction and apoptosis via increasing oxidative stress, and the Akt/mechanistic target of rapamycin (mTOR) pathway involved in this process. This study revealed a novel mechanism by which maternal selenium deficiency caused impairment of the placenta.
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Affiliation(s)
- Mengdi Li
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.,Department of Anatomy, Basic Medical College, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Wanpeng Cheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Lantian Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.,Department of Anatomy, Basic Medical College, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
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27
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Zheng Y, Guan H, Yang J, Cai J, Liu Q, Zhang Z. Calcium overload and reactive oxygen species accumulation induced by selenium deficiency promote autophagy in swine small intestine. ACTA ACUST UNITED AC 2021; 7:997-1008. [PMID: 34738030 PMCID: PMC8536506 DOI: 10.1016/j.aninu.2021.05.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/22/2021] [Accepted: 05/07/2021] [Indexed: 12/23/2022]
Abstract
Selenium (Se) deficiency can seriously affect the small intestine of swine, and cause diarrhea in swine. However, the specific mechanism of Se deficiency-induced swine diarrhea has rarely been reported. Here, to explore the damage of Se deficiency on the calcium homeostasis and autophagy mechanism of swine, in vivo and in vitro models of swine intestinal Se deficiency were established. Twenty-four pure line castrated male Yorkshire pigs (45 d old, 12.50 ± 1.32 kg, 12 full-sibling pairs) were divided into 2 equal groups and fed Se-deficient diet (0.007 mg Se/kg) as the Se-deficiency group, or fed Se-adequate diet (0.3 mg Se/kg) as the control group for 16 weeks. The intestinal porcine enterocyte cell line (IPEC-J2) was divided into 2 groups, and cultured by Se-deficient medium as the Se-deficient group, or cultured by normal medium as the control group. Morphological observations showed that compared with the control group, intestinal cells in the Se-deficiency group were significantly damaged, and autophagosomes increased. Autophagy staining and cytoplasmic calcium staining results showed that in the Se-deficiency group, autophagy increased and calcium homeostasis was destroyed. According to the reactive oxygen species (ROS) staining results, the percentage of ROS in the Se-deficiency group was higher than that in the control group in the in vitro model. Compared with the control group, the protein and mRNA expressions of autophagy-calcium-related genes including Beclin 1, microtubule-associated proteins 1A (LC3-1), microtubule-associated proteins 1B (LC3-2), autophagy-related protein 5 (ATG5), autophagy-related protein 12 (ATG12), autophagy-related protein 16 (ATG16), mammalian target of rapamycin (mTOR), calmodulin-dependent protein kinase kinase β (CAMKK-β), adenosine 5′-monophosphate-activated protein kinase (AMPK), sarco(endo)plasmic reticulum Ca2+-ATPase (SERCA), and calpain in the Se-deficiency group were significantly increased which was consistent in vivo and in vitro (P < 0.05). Altogether, our results indicated that Se deficiency could destroy the calcium homeostasis of the swine small intestine to trigger cell autophagy and oxidative stress, which was helpful to explain the mechanism of Se deficiency-induced diarrhea in swine.
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Affiliation(s)
- Yingying Zheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Haoyue Guan
- College of Animal Science and Veterinary Medicine, Southwest Minzu University, Chengdu, Sichuan, China
| | - Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Jingzeng Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Qi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
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28
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Savastano G, Del Negro V, Pompeo D, Sorrenti S, Galoppi P, Brunelli R, Piccioni MG. Thyroid Disease, Pregnancy, and Selenium Supplementation. CURRENT OBSTETRICS AND GYNECOLOGY REPORTS 2021. [DOI: 10.1007/s13669-021-00314-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Mojadadi A, Au A, Salah W, Witting P, Ahmad G. Role for Selenium in Metabolic Homeostasis and Human Reproduction. Nutrients 2021; 13:3256. [PMID: 34579133 PMCID: PMC8469766 DOI: 10.3390/nu13093256] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/16/2021] [Accepted: 09/16/2021] [Indexed: 02/06/2023] Open
Abstract
Selenium (Se) is a micronutrient essential for life. Dietary intake of Se within the physiological range is critical for human health and reproductive functions. Selenium levels outside the recommended range have been implicated in infertility and variety of other human diseases. However, presently it is not clear how different dietary Se sources are processed in our bodies, and in which form or how much dietary Se is optimum to maintain metabolic homeostasis and boost reproductive health. This uncertainty leads to imprecision in published dietary guidelines and advice for human daily intake of Se and in some cases generating controversies and even adverse outcomes including mortality. The chief aim for this review is to describe the sources of organic and inorganic Se, the metabolic pathways of selenoproteins synthesis, and the critical role of selenprotenis in the thyroid gland homeostasis and reproductive/fertility functions. Controversies on the use of Se in clinical practice and future directions to address these challenges are also described and discussed herein.
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Affiliation(s)
- Albaraa Mojadadi
- Molecular Biomedicine, Charles Perkins Centre, School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.M.); (A.A.); (W.S.); (P.W.)
- Department of Anatomy, College of Medicine, King AbdulAziz University, Rabigh 21589, Saudi Arabia
| | - Alice Au
- Molecular Biomedicine, Charles Perkins Centre, School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.M.); (A.A.); (W.S.); (P.W.)
| | - Wed Salah
- Molecular Biomedicine, Charles Perkins Centre, School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.M.); (A.A.); (W.S.); (P.W.)
- Department of Anatomy, College of Medicine, Jeddah University, Jeddah 21959, Saudi Arabia
| | - Paul Witting
- Molecular Biomedicine, Charles Perkins Centre, School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.M.); (A.A.); (W.S.); (P.W.)
| | - Gulfam Ahmad
- Molecular Biomedicine, Charles Perkins Centre, School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia; (A.M.); (A.A.); (W.S.); (P.W.)
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30
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Helman SL, Wilkins SJ, McKeating DR, Perkins AV, Whibley PE, Cuffe JSM, Simmons DG, Fuqua BK, Vulpe CD, Wallace DF, O'Callaghan JL, Pelzer ES, Anderson GJ, Frazer DM. The Placental Ferroxidase Zyklopen Is Not Essential for Iron Transport to the Fetus in Mice. J Nutr 2021; 151:2541-2550. [PMID: 34114013 DOI: 10.1093/jn/nxab174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/09/2021] [Accepted: 05/07/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The ferroxidase zyklopen (Zp) has been implicated in the placental transfer of iron to the fetus. However, the evidence for this is largely circumstantial. OBJECTIVES This study aimed to determine whether Zp is essential for placental iron transfer. METHODS A model was established using 8- to 12-wk-old pregnant C57BL/6 mice on standard rodent chow in which Zp was knocked out in the fetus and fetal components of the placenta. Zp was also disrupted in the entire placenta using global Zp knockout mice. Inductively coupled plasma MS was used to measure total fetal iron, an indicator of the amount of iron transferred by the placenta to the fetus, at embryonic day 18.5 of gestation. Iron transporter expression in the placenta was measured by Western blotting, and the expression of Hamp1, the gene encoding the iron regulatory hormone hepcidin, was determined in fetal liver by real-time PCR. RESULTS There was no change in the amount of iron transferred to the fetus when Zp was disrupted in either the fetal component of the placenta or the entire placenta. No compensatory changes in the expression of the iron transport proteins transferrin receptor 1 or ferroportin were observed, nor was there any change in fetal liver Hamp1 mRNA. Hephl1, the gene encoding Zp, was expressed mainly in the maternal decidua of the placenta and not in the nutrient-transporting syncytiotrophoblast. Disruption of Zp in the whole placenta resulted in a 26% increase in placental size (P < 0.01). CONCLUSIONS Our data indicate that Zp is not essential for the efficient transfer of iron to the fetus in mice and is localized predominantly in the maternal decidua. The increase in placental size observed when Zp is knocked out in the entire placenta suggests that this protein may play a role in placental development.
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Affiliation(s)
- Sheridan L Helman
- Molecular Nutrition Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,Faculty of Medicine, The University of Queensland, St. Lucia, Australia
| | - Sarah J Wilkins
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Daniel R McKeating
- School of Medical Science, Griffith University, Gold Coast Campus, Southport, Australia
| | - Anthony V Perkins
- School of Medical Science, Griffith University, Gold Coast Campus, Southport, Australia
| | - Page E Whibley
- Molecular Nutrition Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - James S M Cuffe
- School of Biomedical Sciences, The University of Queensland, St. Lucia, Australia
| | - David G Simmons
- School of Biomedical Sciences, The University of Queensland, St. Lucia, Australia
| | - Brie K Fuqua
- David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Christopher D Vulpe
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Daniel F Wallace
- School of Biomedical Sciences, Queensland University of Technology, Gardens Point, Australia
| | - Jessica L O'Callaghan
- School of Biomedical Sciences, Queensland University of Technology, Gardens Point, Australia
| | - Elise S Pelzer
- School of Biomedical Sciences, Queensland University of Technology, Gardens Point, Australia
| | - Gregory J Anderson
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,School of Chemistry and Molecular Bioscience, The University of Queensland, St. Lucia, Australia
| | - David M Frazer
- Molecular Nutrition Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,School of Biomedical Sciences, The University of Queensland, St. Lucia, Australia.,School of Biomedical Sciences, Queensland University of Technology, Gardens Point, Australia
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31
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Kalansuriya DM, Lim R, Lappas M. In vitro selenium supplementation suppresses key mediators involved in myometrial activation and rupture of fetal membranes. Metallomics 2021; 12:935-951. [PMID: 32373896 DOI: 10.1039/d0mt00063a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Spontaneous preterm birth, which can affect up to 20% of all pregnancies, is the greatest contributor to perinatal morbidity and mortality. Infection is the leading pathological cause of spontaneous preterm birth. Infection activates the maternal immune system, resulting in the upregulation of pro-inflammatory and pro-labor mediators that activate myometrial contractions and rupture of fetal membranes. Anti-inflammatory agents therefore have the potential for the prevention of spontaneous preterm birth. Selenium, an essential micronutrient, has been shown to be a potent anti-inflammatory regulator. Notably, clinical and epidemiological studies have suggested a link between selenium and preterm birth. Thus, the aim of this study was to assess the effect of selenite (an inorganic form of selenium) on the expression of pro-inflammatory and pro-labor mediators in human gestational tissues. Human fetal membranes and myometrium were pre-incubated with or without selenite before incubation with the bacterial product lipopolysaccharide (LPS) to stimulate inflammation associated with preterm birth. Selenite blocked LPS-induced expression of pro-inflammatory cytokines and chemokines and enzymes involved in remodelling of myometrium and degradation of fetal membranes. Of note, selenite also suppressed myometrial activation induced by inflammation as evidenced by a decrease in LPS-induced prostaglandin signalling and myometrial cell contractility. These effects of selenite were mediated by the MAPK protein ERK as selenite blunted LPS induced activation of ERK. In conclusion, selenite suppresses key mediators involved in inflammation induced activation of mediators involved in active labor in human fetal membranes and myometrium. These findings support recent clinical studies demonstrating selenium supplementation is associated with decreased incidence of spontaneous preterm birth.
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Affiliation(s)
- Dineli Matheesha Kalansuriya
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of Melbourne, Level 4/163 Studley Road, Heidelberg, 3084, Victoria, Australia.
| | - Ratana Lim
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of Melbourne, Level 4/163 Studley Road, Heidelberg, 3084, Victoria, Australia. and Mercy Perinatal Research Centre, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Martha Lappas
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of Melbourne, Level 4/163 Studley Road, Heidelberg, 3084, Victoria, Australia. and Mercy Perinatal Research Centre, Mercy Hospital for Women, Heidelberg, Victoria, Australia
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32
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Ojeda ML, Nogales F, Romero-Herrera I, Carreras O. Fetal Programming Is Deeply Related to Maternal Selenium Status and Oxidative Balance; Experimental Offspring Health Repercussions. Nutrients 2021; 13:nu13062085. [PMID: 34207090 PMCID: PMC8233903 DOI: 10.3390/nu13062085] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/08/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022] Open
Abstract
Nutrients consumed by mothers during pregnancy and lactation can exert permanent effects upon infant developing tissues, which could represent an important risk factor for diseases during adulthood. One of the important nutrients that contributes to regulating the cell cycle and tissue development and functionality is the trace element selenium (Se). Maternal Se requirements increase during gestation and lactation. Se performs its biological action by forming part of 25 selenoproteins, most of which have antioxidant properties, such as glutathione peroxidases (GPxs) and selenoprotein P (SELENOP). These are also related to endocrine regulation, appetite, growth and energy homeostasis. In experimental studies, it has been found that low dietary maternal Se supply leads to an important oxidative disruption in dams and in their progeny. This oxidative stress deeply affects gestational parameters, and leads to intrauterine growth retardation and abnormal development of tissues, which is related to endocrine metabolic imbalance. Childhood pathologies related to oxidative stress during pregnancy and/or lactation, leading to metabolic programing disorders like fetal alcohol spectrum disorders (FASD), have been associated with a low maternal Se status and intrauterine growth retardation. In this context, Se supplementation therapy to alcoholic dams avoids growth retardation, hepatic oxidation and improves gestational and breastfeeding parameters in FASD pups. This review is focused on the important role that Se plays during intrauterine and breastfeeding development, in order to highlight it as a marker and/or a nutritional strategy to avoid diverse fetal programming disorders related to oxidative stress.
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Kaixin Z, Xuedie G, Jing L, Yiming Z, Khoso PA, Zhaoyi L, Shu L. Selenium-deficient diet induces inflammatory response in the pig adrenal glands by activating TLR4/NF-κB pathway via miR-30d-R_1. Metallomics 2021; 13:6300451. [PMID: 34132350 DOI: 10.1093/mtomcs/mfab037] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 06/02/2021] [Accepted: 06/13/2021] [Indexed: 01/07/2023]
Abstract
Selenium (Se) is an important trace element to maintain the body's dynamic balance. Lack of Se can cause inflammation. Studies have shown that inflammation often leads to disorders of the hypothalamic-pituitary-adrenal axis, but the mechanism by which Se deficiency causes inflammation of the porcine adrenal glands is still unclear. In order to study the effect of Se deficiency on the adrenal glands of pigs, we obtained Se-deficient pig adrenal glands through a low-Se diet. The results of mass spectrometry showed that the Se content in the Se-deficient group was only one-tenth of the control group. We detected the expression of the toll-like receptor 4 (TLR4) and downstream factors by qRT-PCR and Western blotting, and found that the lack of Se affected the TLR4/NF-κB pathway. It is known that miR-155-3p, miR-30d-R_1, and miR-146b have all been verified for targeting relationship with TLR4. We confirmed by qRT-PCR that miR-30d-R_1 decreased most significantly in the Se-deficient pig model. Then we tested 25 selenoproteins and some indicators of oxidative stress. It is confirmed that Se deficiency reduces the antioxidant capacity and induces oxidative stress in pig adrenal tissue. In short, a diet lacking Se induces oxidative stress in pig adrenal tissues and leads to inflammation through the miR-30d-R_1/TLR4 pathway. This study provides a reference for the prevention of adrenal inflammation in pigs from a nutritional point of view.
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Affiliation(s)
- Zhang Kaixin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Gu Xuedie
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Lan Jing
- Quality and Safety Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Zhang Yiming
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Pervez Ahmed Khoso
- Shaheed Benazir Bhutto University of Veterinary and Animal Sciences Sakrand, Pakistan
| | - Liu Zhaoyi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Li Shu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
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Loss of Selenoprotein Iodothyronine Deiodinase 3 Expression Correlates with Progression of Complete Hydatidiform Mole to Gestational Trophoblastic Neoplasia. Reprod Sci 2021; 28:3200-3211. [PMID: 34129219 DOI: 10.1007/s43032-021-00634-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 05/19/2021] [Indexed: 10/21/2022]
Abstract
To investigate if differences in imprinting at tropho-microRNA (miRNA) genomic clusters can distinguish between pre-gestational trophoblastic neoplasia cases (pre-GTN) and benign complete hydatidiform mole (CHM) cases at the time of initial uterine evacuation. miRNA sequencing was performed on frozen tissue from 39 CHM cases including 9 GTN cases. DIO3, DLK1, RTL1, and MEG 3 mRNA levels were assessed by qRT-PCR. Protein abundance was assessed by Western blot for DIO3, DLK1, and RTL1. qRT-PCR and Western blot were performed for selenoproteins and markers of oxidative stress. Immunohistochemistry (IHC) was performed for DIO3 on an independent validation set of clinical samples (n = 42) and compared to normal placenta controls across gestational ages. Relative expression of the 14q32 miRNA cluster was lower in pre-GTN cases. There were no differences in protein abundance of DLK1 or RTL1. Notably, there was lower protein expression of DIO3 in pre-GTN cases (5-fold, p < 0.03). There were no differences in mRNA levels of DIO3, DLK1, RTL1 or MEG 3. mRNA levels were higher in all CHM cases compared to normal placenta. IHC showed syncytiotrophoblast-specific DIO3 immunostaining in benign CHM cases and normal placenta, while pre-GTN cases of CHM lacked DIO3 expression. We describe two new biomarkers of pre-GTN CHM cases: decreased 14q32 miRNA expression and loss of DIO3 expression by IHC. Differences in imprinting between benign CHM and pre-GTN cases may provide insight into the fundamental development of CHM.
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Schiera G, Di Liegro CM, Di Liegro I. Involvement of Thyroid Hormones in Brain Development and Cancer. Cancers (Basel) 2021; 13:2693. [PMID: 34070729 PMCID: PMC8197921 DOI: 10.3390/cancers13112693] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 12/21/2022] Open
Abstract
The development and maturation of the mammalian brain are regulated by thyroid hormones (THs). Both hypothyroidism and hyperthyroidism cause serious anomalies in the organization and function of the nervous system. Most importantly, brain development is sensitive to TH supply well before the onset of the fetal thyroid function, and thus depends on the trans-placental transfer of maternal THs during pregnancy. Although the mechanism of action of THs mainly involves direct regulation of gene expression (genomic effects), mediated by nuclear receptors (THRs), it is now clear that THs can elicit cell responses also by binding to plasma membrane sites (non-genomic effects). Genomic and non-genomic effects of THs cooperate in modeling chromatin organization and function, thus controlling proliferation, maturation, and metabolism of the nervous system. However, the complex interplay of THs with their targets has also been suggested to impact cancer proliferation as well as metastatic processes. Herein, after discussing the general mechanisms of action of THs and their physiological effects on the nervous system, we will summarize a collection of data showing that thyroid hormone levels might influence cancer proliferation and invasion.
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Affiliation(s)
- Gabriella Schiera
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche) (STEBICEF), University of Palermo, 90128 Palermo, Italy; (G.S.); (C.M.D.L.)
| | - Carlo Maria Di Liegro
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche) (STEBICEF), University of Palermo, 90128 Palermo, Italy; (G.S.); (C.M.D.L.)
| | - Italia Di Liegro
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (Dipartimento di Biomedicina, Neuroscienze e Diagnostica avanzata) (Bi.N.D.), University of Palermo, 90127 Palermo, Italy
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Erol SA, Polat N, Akdas S, Aribal Ayral P, Anuk AT, Ozden Tokalioglu E, Goncu Ayhan Ş, Kesikli B, Ceylan MN, Tanacan A, Moraloglu Tekin Ö, Yazihan N, Sahin D. Maternal selenium status plays a crucial role on clinical outcomes of pregnant women with COVID-19 infection. J Med Virol 2021; 93:5438-5445. [PMID: 33951210 PMCID: PMC8242645 DOI: 10.1002/jmv.27064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/29/2021] [Accepted: 04/30/2021] [Indexed: 12/21/2022]
Abstract
Adequate maternal selenium level is essential for immune response and healthy pregnancy. This study aimed to shed light on the selenium status of pregnant women with COVID-19 and the effects of potential deficiency in serum selenium levels. Totally 141 pregnant women, 71 of them were COVID-19 patients, in different trimesters were included in the study. Maternal serum selenium levels, demographic and clinical parameters were determined. Serum selenium levels of pregnant women in the second (p: .0003) and third (p: .001) trimesters with COVID-19 were significantly lower than in the healthy group. Maternal selenium level was found to be negatively correlated with gestational week (p < .0001, r: -.541), D-dimer (p: .0002, r: -.363) and interleukin-6 (IL-6) level (p: .02, r: -.243). In the second trimester, serum selenium level positively correlated with white blood cell (p: .002, r: .424), neutrophil (p: .006, r: .39), lymphocyte (p: .004, r: .410) count and hemoglobin (p: .02, r: .323), hematocrit (p: .008, r: .38) status. In the third trimester, it was found that maternal selenium level positively correlated with monocyte (p: .04, r: .353) and negatively correlated with C-reactive protein level (p: .03, r: -.384). Serum selenium level was gradually decreased during the pregnancy period, however, this natural decrease was enhanced together with COVID-19 infection. The reason might be increased selenium needs depended on the immune response against infection. The decrease in maternal selenium level was found to be related to IL-6 and D-dimer levels, which indicate selenium's role in disease progression.
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Affiliation(s)
- Seyit Ahmet Erol
- Department of Obstetrics and Gynecology, Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Naci Polat
- Department of Pathophysiology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Sevginur Akdas
- Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Institute of Health, Ankara University, Ankara, Turkey
| | - Pelin Aribal Ayral
- Department of Pathophysiology, Ankara University Faculty of Medicine, Ankara, Turkey.,Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Institute of Health, Ankara University, Ankara, Turkey
| | - Ali Taner Anuk
- Department of Obstetrics and Gynecology, Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Eda Ozden Tokalioglu
- Department of Obstetrics and Gynecology, Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Şule Goncu Ayhan
- Department of Obstetrics and Gynecology, Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Burcu Kesikli
- Department of Pathophysiology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Merve Nur Ceylan
- Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Institute of Health, Ankara University, Ankara, Turkey
| | - Atakan Tanacan
- Department of Obstetrics and Gynecology, Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Özlem Moraloglu Tekin
- Department of Obstetrics and Gynecology, University of Health Sciences, Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Nuray Yazihan
- Department of Pathophysiology, Ankara University Faculty of Medicine, Ankara, Turkey.,Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Institute of Health, Ankara University, Ankara, Turkey
| | - Dilek Sahin
- Department of Obstetrics and Gynecology, University of Health Sciences, Ministry of Health, Ankara City Hospital, Ankara, Turkey
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37
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Hu XQ, Zhang L. Hypoxia and Mitochondrial Dysfunction in Pregnancy Complications. Antioxidants (Basel) 2021; 10:antiox10030405. [PMID: 33800426 PMCID: PMC7999178 DOI: 10.3390/antiox10030405] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 02/07/2023] Open
Abstract
Hypoxia is a common and severe stress to an organism's homeostatic mechanisms, and hypoxia during gestation is associated with significantly increased incidence of maternal complications of preeclampsia, adversely impacting on the fetal development and subsequent risk for cardiovascular and metabolic disease. Human and animal studies have revealed a causative role of increased uterine vascular resistance and placental hypoxia in preeclampsia and fetal/intrauterine growth restriction (FGR/IUGR) associated with gestational hypoxia. Gestational hypoxia has a major effect on mitochondria of uteroplacental cells to overproduce reactive oxygen species (ROS), leading to oxidative stress. Excess mitochondrial ROS in turn cause uteroplacental dysfunction by damaging cellular macromolecules, which underlies the pathogenesis of preeclampsia and FGR. In this article, we review the current understanding of hypoxia-induced mitochondrial ROS and their role in placental dysfunction and the pathogenesis of pregnancy complications. In addition, therapeutic approaches selectively targeting mitochondrial ROS in the placental cells are discussed.
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38
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Neal ES, Hofstee P, Askew MR, Kent NL, Bartho LA, Perkins AV, Cuffe JSM. Maternal selenium deficiency in mice promotes sex-specific changes to urine flow and renal expression of mitochondrial proteins in adult offspring. Physiol Rep 2021; 9:e14785. [PMID: 33769708 PMCID: PMC7995548 DOI: 10.14814/phy2.14785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 02/11/2021] [Indexed: 12/15/2022] Open
Abstract
Selenium deficiency during pregnancy can impair fetal development and predispose offspring to thyroid dysfunction. Given that key selenoproteins are highly expressed in the kidney and that poor thyroid health can lead to kidney disease, it is likely that kidney function may be impaired in offspring of selenium-deficient mothers. This study utilized a mouse model of maternal selenium deficiency to investigate kidney protein glycation, mitochondrial adaptations, and urinary excretion in offspring. Female C57BL/6 mice were fed control (>190 µg selenium/kg) or low selenium (<50 µg selenium/kg) diets four weeks prior to mating, throughout gestation, and lactation. At postnatal day (PN) 170, offspring were placed in metabolic cages for 24 hr prior to tissue collection at PN180. Maternal selenium deficiency did not impact selenoprotein antioxidant activity, but increased advanced glycation end products in female kidneys. Male offspring had reduced renal Complex II and Complex IV protein levels and lower 24 hr urine flow. Although renal aquaporin 2 (Aqp2) and arginine vasopressin receptor 2 (Avpr2) mRNA were not altered by maternal selenium deficiency, a correlation between urine flow and plasma free T4 concentrations in male but not female offspring suggests that programed thyroid dysfunction may be mediating impaired urine flow. This study demonstrates that maternal selenium deficiency can lead to long-term deficits in kidney parameters that may be secondary to impaired thyroid dysfunction. Considering the significant burden of renal dysfunction as a comorbidity to metabolic diseases, improving maternal selenium intake in pregnancy may be one simple measure to prevent lifelong disease.
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Affiliation(s)
- Elliott S. Neal
- School of Biomedical SciencesThe University of QueenslandSt LuciaQLDAustralia
| | - Pierre Hofstee
- School of Medical ScienceGriffith University Gold Coast CampusSouthportQLDAustralia
| | - Montana R. Askew
- School of Biomedical SciencesThe University of QueenslandSt LuciaQLDAustralia
| | - Nykola L. Kent
- School of Biomedical SciencesThe University of QueenslandSt LuciaQLDAustralia
| | - Lucy A. Bartho
- School of Medical ScienceGriffith University Gold Coast CampusSouthportQLDAustralia
| | - Anthony V. Perkins
- School of Medical ScienceGriffith University Gold Coast CampusSouthportQLDAustralia
| | - James S. M. Cuffe
- School of Biomedical SciencesThe University of QueenslandSt LuciaQLDAustralia
- School of Medical ScienceGriffith University Gold Coast CampusSouthportQLDAustralia
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39
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Neonatal Selenoenzyme Expression Is Variably Susceptible to Duration of Maternal Selenium Deficiency. Antioxidants (Basel) 2021; 10:antiox10020288. [PMID: 33672905 PMCID: PMC7917816 DOI: 10.3390/antiox10020288] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/03/2021] [Accepted: 02/08/2021] [Indexed: 12/16/2022] Open
Abstract
Maternal selenium (Se) deficiency is associated with decreased neonatal Se levels, which increases the risk for neonatal morbidities. There is a hierarchy to selenoprotein expression after Se deficiency in adult rodents, depending on the particular protein and organ evaluated. However, it is unknown how limited Se supply during pregnancy impacts neonatal selenoprotein expression. We used an Se-deficient diet to induce perinatal Se deficiency (SeD), initiated 2–4 weeks before onset of breeding and continuing through gestation. Neonatal plasma, liver, heart, kidney, and lung were collected on the day of birth and assessed for selenoproteins, factors required for Se processing, and non-Se containing antioxidant enzymes (AOE). Maternal SeD reduced neonatal circulating and hepatic glutathione peroxidase (GPx) activity, as well as hepatic expression of Gpx1 and selenophosphate synthetase 2 (Sps2). In contrast, the impact of maternal SeD on hepatic thioredoxin reductase 1, hepatic non-Se containing AOEs, as well as cardiac, renal, and pulmonary GPx activity, varied based on duration of maternal exposure to SeD diet. We conclude that the neonatal liver and circulation demonstrate earlier depletion in selenoenzyme activity after maternal SeD. Our data indicate that prolonged maternal SeD may escalate risk to the neonate by progressively diminishing Se-containing AOE across multiple organs.
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40
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Hebert JF, Myatt L. Placental mitochondrial dysfunction with metabolic diseases: Therapeutic approaches. Biochim Biophys Acta Mol Basis Dis 2021; 1867:165967. [PMID: 32920120 PMCID: PMC8043619 DOI: 10.1016/j.bbadis.2020.165967] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 12/25/2022]
Abstract
Both obesity and gestational diabetes mellitus (GDM) lead to poor maternal and fetal outcomes, including pregnancy complications, fetal growth issues, stillbirth, and developmental programming of adult-onset disease in the offspring. Increased placental oxidative/nitrative stress and reduced placental (trophoblast) mitochondrial respiration occur in association with the altered maternal metabolic milieu of obesity and GDM. The effect is particularly evident when the fetus is male, suggesting a sexually dimorphic influence on the placenta. In addition, obesity and GDM are associated with inflexibility in trophoblast, limiting the ability to switch between usage of glucose, fatty acids, and glutamine as substrates for oxidative phosphorylation, again in a sexually dimorphic manner. Here we review mechanisms underlying placental mitochondrial dysfunction: its relationship to maternal and fetal outcomes and the influence of fetal sex. Prevention of placental oxidative stress and mitochondrial dysfunction may improve pregnancy outcomes. We outline pathways to ameliorate deficient mitochondrial respiration, particularly the benefits and pitfalls of mitochondria-targeted antioxidants.
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Affiliation(s)
- Jessica F Hebert
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR, United States of America
| | - Leslie Myatt
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR, United States of America.
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41
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Solé-Navais P, Brantsæter AL, Caspersen IH, Lundh T, Muglia LJ, Meltzer HM, Zhang G, Jacobsson B, Sengpiel V, Barman M. Maternal Dietary Selenium Intake during Pregnancy Is Associated with Higher Birth Weight and Lower Risk of Small for Gestational Age Births in the Norwegian Mother, Father and Child Cohort Study. Nutrients 2020; 13:nu13010023. [PMID: 33374667 PMCID: PMC7822440 DOI: 10.3390/nu13010023] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/16/2020] [Accepted: 12/19/2020] [Indexed: 12/20/2022] Open
Abstract
Selenium is an essential trace element involved in the body’s redox reactions. Low selenium intake during pregnancy has been associated with low birth weight and an increased risk of children being born small for gestational age (SGA). Based on data from the Norwegian Mother, Father and Child Cohort Study (MoBa) and the Medical Birth Registry of Norway (MBRN), we studied the association of maternal selenium intake from diet and supplements during the first half of pregnancy (n = 71,728 women) and selenium status in mid-pregnancy (n = 2628 women) with birth weight and SGA status, according to population-based, ultrasound-based and customized growth standards. An increase of one standard deviation of maternal dietary selenium intake was associated with increased birth weight z-scores (ß = 0.027, 95% CI: 0.007, 0.041) and lower SGA risk (OR = 0.91, 95% CI 0.86, 0.97) after adjusting for confounders. Maternal organic and inorganic selenium intake from supplements as well as whole blood selenium concentration were not associated with birth weight or SGA. Our results suggest that a maternal diet rich in selenium during pregnancy may be beneficial for foetal growth. However, the effect estimates were small and further studies are needed to elucidate the potential impact of selenium on foetal growth.
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Affiliation(s)
- Pol Solé-Navais
- Department of Obstetrics and Gynaecology, Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden; (P.S.-N.); (B.J.); (V.S.)
| | - Anne Lise Brantsæter
- Division of Infection Control, Environment and Health, Norwegian Institute of Public Health, 0213 Oslo, Norway; (A.L.B.); (H.M.M.)
| | | | - Thomas Lundh
- Department of Laboratory Medicine, Division of Occupational and Environmental Medicine, Lund University, 221 85 Lund, Sweden;
| | - Louis J. Muglia
- Cincinnati Children’s Hospital Medical Center, Division of Human Genetics and Perinatal Institute, Cincinnati, OH 45229, USA; (L.J.M.); (G.Z.)
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
- Office of the President, Burroughs Wellcome Fund, Research Triangle Park, Durham, NC 27709, USA
| | - Helle Margrete Meltzer
- Division of Infection Control, Environment and Health, Norwegian Institute of Public Health, 0213 Oslo, Norway; (A.L.B.); (H.M.M.)
| | - Ge Zhang
- Cincinnati Children’s Hospital Medical Center, Division of Human Genetics and Perinatal Institute, Cincinnati, OH 45229, USA; (L.J.M.); (G.Z.)
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Bo Jacobsson
- Department of Obstetrics and Gynaecology, Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden; (P.S.-N.); (B.J.); (V.S.)
- Department of Genetics and Bioinformatics, Domain of Health Data and Digitalisation, Institute of Public Health, 0456 Oslo, Norway
- Department of Obstetrics and Gynaecology, Sahlgrenska University Hospital/Östra, 405 30 Gothenburg, Sweden
| | - Verena Sengpiel
- Department of Obstetrics and Gynaecology, Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden; (P.S.-N.); (B.J.); (V.S.)
- Department of Obstetrics and Gynaecology, Sahlgrenska University Hospital/Östra, 405 30 Gothenburg, Sweden
| | - Malin Barman
- Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
- Correspondence:
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42
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Liang C, Han Y, Ma L, Wu X, Huang K, Yan S, Li Z, Xia X, Pan W, Sheng J, Wang Q, Tong S, Cao Y, Tao F. Low levels of arsenic exposure during pregnancy and maternal and neonatal thyroid hormone parameters: The determinants for these associations. ENVIRONMENT INTERNATIONAL 2020; 145:106114. [PMID: 33035893 DOI: 10.1016/j.envint.2020.106114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 07/31/2020] [Accepted: 09/01/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The potential maternal and neonatal thyrotoxicity associated with exposure to arsenic during pregnancy is very limited and unclear. OBJECTIVES This study aimed to examine the associations between arsenic exposure levels in maternal and cord serum and maternal and neonatal thyroid hormone parameters in a prospective birth cohort study. METHODS The study including 2089 mother-neonate pairs was based upon Ma'an Shan birth cohort study in China. The exposure variables including maternal serum arsenic levels in the first, second and third trimester and average arsenic exposure level during pregnancy and cord serum arsenic level. Maternal serum TSH and FT4 levels in the first, second and third trimester and cord serum TSH and FT4 levels were determined using the electrochemiluminescence immunoassay with Cobas Elecsys 411. Linear mixed models were used to examine associations between arsenic exposure variables during pregnancy and maternal thyroid hormone parameters, and multiple linear regression analyses were used to examine associations between arsenic exposure during pregnancy and neonatal thyroid hormone parameters. Bayesian kernal machine regression (BKMR) analyses based on a kernel function were also used to examine the effects of exposure to metal mixtures (arsenic, mercury, cadmium and selenium). RESULTS The geometric means of arsenic exposure levels across 3 trimesters were 1.74 μg/L, 1.81 μg/L and 1.99 μg/L, respectively, and 1.90 μg/L in cord serum; the geometric means of maternal FT4 levels across 3 trimesters were 16.91 pmol/L, 11.91 pmol/L and 13.16 pmol/L, respectively, and 16.10 pmol/L in cord serum; the geometric means of maternal TSH levels across 3 trimesters were 1.27 μIU/mL, 2.32 μIU/mL and 2.08 μIU/mL, respectively, and 8.47 μIU/mL in cord serum. Maternal serum arsenic levels in the first, seond, third trimester and average arsenic exposure level during pregnancy were all not associated with maternal thyroid hormone parameters after adjustment for all the covariates, the adjusted β (95% CI) were -0.002 (-0.10 to 0.09), 0.05 (-0.05 to 0.16), -0.09 (-0.17 to 0.003) and -0.05 (-0.22 to 0.11) for maternal FT4, respectively; and -0.005 (-0.04 to 0.03), -0.003 (-0.04 to 0.03), -0.004 (-0.03 to 0.02) and -0.01 (-0.06 to 0.04) for maternal lnTSH, respectively. Maternal serum arsenic levels in the first, second trimester and average arsenic exposure level during pregnancy were all inversely associated with neonatal FT4 level after adjustment for all the confounders, the adjusted β (95% CI) were -0.19 (-0.31 to -0.07), -0.14 (-0.26 to -0.01), -0.22 (-0.42 to -0.02), respectively; and cord serum arsenic level was positively related with neonatal TSH level, the adjusted β (95% CI) were 0.04 (0.001 to 0.08). The adverse joint toxic effect of the four metals in maternal serum in the first trimester and in cord serum on neonatal thyroid hormone parameters were also found. CONCLUSIONS In this study, exposure to low levels of arsenic during pregnancy could directly affect neonatal thyroid hormone parameters without being mediated by maternal effect of exposure, and maternal serum arsenic levels in the first, second trimester and average arsenic exposure level during pregnancy and cord serum arsenic level may be risk factors affecting neonatal thyroid hormones. These findings indicate that neonates are more sensitive to the thyrotoxicity of arsenic exposure even at low levels. In addition, the adverse joint toxic effect of metal mixtures is also worthy of attention.
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Affiliation(s)
- Chunmei Liang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Yan Han
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Liya Ma
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Xiaoyan Wu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Kun Huang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Shuangqin Yan
- Ma'anshan Maternal and Child Healthcare (MCH) Center, Ma'anshan 243011, China
| | - Zhijuan Li
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Xun Xia
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Weijun Pan
- Ma'anshan Maternal and Child Healthcare (MCH) Center, Ma'anshan 243011, China
| | - Jie Sheng
- MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Qunan Wang
- MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Shilu Tong
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China; School of Public Health and Social Work and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.
| | - Yunxia Cao
- MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China.
| | - Fangbiao Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; MOE Key Laboratory of Population Health Across Life Cycle, No 81 Meishan Road, Hefei 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China.
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Ogrizek-Pelkič K, Sobočan M, Takač I. Low Selenium Levels in Amniotic Fluid Correlate with Small-For-Gestational Age Newborns. Nutrients 2020; 12:nu12103046. [PMID: 33027985 PMCID: PMC7600462 DOI: 10.3390/nu12103046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 09/28/2020] [Accepted: 10/02/2020] [Indexed: 12/14/2022] Open
Abstract
Background: Identifying women at risk for small-for-gestational-age newborns (SGA) is an important challenge in obstetrics. Several different risk factors have been suggested to contribute to the development of SGA. Previous research is inconclusive on the role selenium (Se) plays in the development of SGA. The aim of the study was therefore to explore the role of Se concentrations in amniotic fluid in order to understand its possible role in the development of SGA. Study Design: This prospective, single center study investigated the relationships between Se concentrations in amniotic fluid and pregnancy outcomes. Amniotic fluid was collected from pregnant women during amniocentesis at 16/17 weeks of pregnancy. Se values were determined using the electrothermal atomic absorption spectrometry and expressed in µg/L. Characteristics of mothers and newborns were obtained from women and delivery records. Results: 327 samples of amniotic fluid were evaluated. Patients with SGA newborns had significantly lower mean values of amniotic fluid concentrations of Se compared to appropriate-for-gestational-age (AGA) newborns (4.8 ± 1.9 µg/L versus 5.6 ± 2.5 µg/L (p = 0.017)). Adjusting for different risk factors, Se remained the only significant factor impacting the outcome of a newborn (b = −0.152, s.e. = 0.077; p < 0.048). Se levels in amniotic fluid did not correlate with pre-eclampsia or preterm delivery. Conclusion: Amniotic fluid Se levels represent a viable root of further investigation and assessment in order to identify women with low birth weight newborns early. Women with decreased Se levels had a statistically significant chance of developing SGA. Further research is needed to elucidate the link between Se, other trace elements, and other risk factors and their impact on the development of SGA newborns.
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Affiliation(s)
- Ksenija Ogrizek-Pelkič
- Faculty of Medicine, Department of Obstetrics and Gynaecology, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia; (K.O.-P.); (I.T.)
| | - Monika Sobočan
- Faculty of Medicine, Department of Obstetrics and Gynaecology, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia; (K.O.-P.); (I.T.)
- University Medical Centre Maribor, Division of Gynaecology and Perinatology, Ljubljanska ulica 5, 2000 Maribor, Slovenia
- Correspondence: ; Tel.: +386-2321-2173
| | - Iztok Takač
- Faculty of Medicine, Department of Obstetrics and Gynaecology, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia; (K.O.-P.); (I.T.)
- University Medical Centre Maribor, Division of Gynaecology and Perinatology, Ljubljanska ulica 5, 2000 Maribor, Slovenia
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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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Habibi N, Grieger JA, Bianco-Miotto T. A Review of the Potential Interaction of Selenium and Iodine on Placental and Child Health. Nutrients 2020; 12:nu12092678. [PMID: 32887377 PMCID: PMC7551633 DOI: 10.3390/nu12092678] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 12/12/2022] Open
Abstract
A healthy pregnancy is important for the growth and development of a baby. An adverse pregnancy outcome is associated with increased chronic disease risk for the mother and offspring. An optimal diet both before and during pregnancy is essential to support the health of the mother and offspring. A key mediator of the effect of maternal nutrition factors on pregnancy outcomes is the placenta. Complicated pregnancies are characterized by increased oxidative stress in the placenta. Selenium and iodine are micronutrients that are involved in oxidative stress in placental cells. To date, there has been no comprehensive review investigating the potential synergistic effect of iodine and selenium in the placenta and how maternal deficiencies may be associated with increased oxidative stress and hence adverse pregnancy outcomes. We undertook a hypothesis-generating review on selenium and iodine, to look at how they may relate to pregnancy complications through oxidative stress. We propose how they may work together to impact pregnancy and placental health and explore how deficiencies in these micronutrients during pregnancy may impact the future health of offspring.
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Affiliation(s)
- Nahal Habibi
- School of Agriculture, Food and Wine, Waite Research Institute, and Robinson Research Institute, University of Adelaide, Adelaide 5005, Australia;
| | - Jessica A. Grieger
- Adelaide Medical School, and Robinson Research Institute, University of Adelaide, Adelaide 5005, Australia
- Correspondence: (J.A.G.); (T.B.-M.)
| | - Tina Bianco-Miotto
- School of Agriculture, Food and Wine, Waite Research Institute, and Robinson Research Institute, University of Adelaide, Adelaide 5005, Australia;
- Correspondence: (J.A.G.); (T.B.-M.)
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Pappalardo AM, Copat C, Raffa A, Rossitto L, Grasso A, Fiore M, Ferrante M, Ferrito V. Fish-Based Baby Food Concern-From Species Authentication to Exposure Risk Assessment. Molecules 2020; 25:E3961. [PMID: 32878026 PMCID: PMC7504785 DOI: 10.3390/molecules25173961] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 12/11/2022] Open
Abstract
In this work, two different but complementary approaches were used to evaluate the reliability of fish-based baby foods as a source of safe nourishment for babies. More specifically, barcoding analysis based on the Cytochrome Oxidase I sequences was used for fish species authentication and an analysis of metal/metalloid levels was performed to estimate the exposure risk assessment derived from consumption of selected fish-based baby food in infants and toddlers. COI DNA barcoding revealed that in three samples the species detected did not match the common name of the species shown on the label. In particular, G. chalcogrammus and M. australis were found in place of M. merluccius and O. mykiss was found in place of S. salar. The analysis of exposure risk assessment indicated a low risk for developing chronic systemic and carcinogenic effects in infants and toddler, under an exposure scenario based on daily consumption of a single box of fish-based baby food. However, it is important to highlight that in order to provide a comprehensive risk assessment it would be important to supplement the levels of exposure resulting from the total diet. Overall, our results suggest that more attention should be paid by authorities to ensure the safety of food for infants and toddlers.
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Affiliation(s)
- Anna Maria Pappalardo
- Department of Biological, Geological and Environmental Sciences–Section of Animal Biology “M. La Greca”, University of Catania, 95124 Catania, Italy; (A.R.); (L.R.)
| | - Chiara Copat
- Department of Medical, Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Hygiene and Public Health, University of Catania, I-95123 Catania, Italy; (C.C.); (A.G.); (M.F.); (M.F.)
| | - Alessandra Raffa
- Department of Biological, Geological and Environmental Sciences–Section of Animal Biology “M. La Greca”, University of Catania, 95124 Catania, Italy; (A.R.); (L.R.)
| | - Luana Rossitto
- Department of Biological, Geological and Environmental Sciences–Section of Animal Biology “M. La Greca”, University of Catania, 95124 Catania, Italy; (A.R.); (L.R.)
| | - Alfina Grasso
- Department of Medical, Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Hygiene and Public Health, University of Catania, I-95123 Catania, Italy; (C.C.); (A.G.); (M.F.); (M.F.)
| | - Maria Fiore
- Department of Medical, Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Hygiene and Public Health, University of Catania, I-95123 Catania, Italy; (C.C.); (A.G.); (M.F.); (M.F.)
| | - Margherita Ferrante
- Department of Medical, Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Hygiene and Public Health, University of Catania, I-95123 Catania, Italy; (C.C.); (A.G.); (M.F.); (M.F.)
| | - Venera Ferrito
- Department of Biological, Geological and Environmental Sciences–Section of Animal Biology “M. La Greca”, University of Catania, 95124 Catania, Italy; (A.R.); (L.R.)
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Serum Microelements in Early Pregnancy and their Risk of Large-for-Gestational Age Birth Weight. Nutrients 2020; 12:nu12030866. [PMID: 32213887 PMCID: PMC7146262 DOI: 10.3390/nu12030866] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 01/07/2023] Open
Abstract
Excessive birth weight has serious perinatal consequences, and it “programs” long-term health. Mother’s nutritional status can be an important element in fetal “programming”; microelements such as selenium (Se), zinc (Zn), copper (Cu), and iron (Fe) are involved in many metabolic processes. However, there are no studies assessing the relationship of the microelements in the peri-conceptual period with the risk of excessive birth weight. We performed a nested case control study of serum microelements’ levels in the 10–14th week of pregnancy and assessed the risk of large-for-gestational age (LGA) newborns using the data from a prospective cohort of pregnant women recruited in 2015–2016 in Poznań, Poland. Mothers delivering LGA newborns (n = 66) were examined with matched mothers delivering appropriate-for-gestational age (AGA) newborns (n = 264). Microelements’ levels were quantified using mass spectrometry. The odds ratios of LGA (and 95% confidence intervals) were calculated by multivariate logistic regression. In the whole group, women with the lowest quartile of Se had a 3 times higher LGA risk compared with women in the highest Se quartile (AOR = 3.00; p = 0.013). Importantly, the result was sustained in the subgroup of women with the normal pre-pregnancy BMI (AOR = 4.79; p = 0.033) and in women with a male fetus (AOR = 6.28; p = 0.004), but it was not sustained in women with a female fetus. There were no statistical associations between Zn, Cu, and Fe levels and LGA. Our study provides some preliminary evidence for the relationships between lower serum Se levels in early pregnancy and a higher risk of large-for-gestational age birth weight. Appropriate Se intake in the periconceptual period may be important for optimal fetal growth.
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Hofstee P, Cuffe JS, Perkins AV. Analysis of Selenoprotein Expression in Response to Dietary Selenium Deficiency During Pregnancy Indicates Tissue Specific Differential Expression in Mothers and Sex Specific Changes in the Fetus and Offspring. Int J Mol Sci 2020; 21:ijms21062210. [PMID: 32210049 PMCID: PMC7139809 DOI: 10.3390/ijms21062210] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 12/14/2022] Open
Abstract
The human selenoproteome is comprised of ~25 genes, which incorporate selenium, in the form of selenocysteine, into their structure. Since it is well known that selenium is important to maternal health and foetal development during pregnancy, this study aimed at defining the impact of selenium deficiency on maternal, placental, foetal and offspring selenoprotein gene expression. Female C57BL/6 mice were randomly allocated to control (>190 μg/kg) or low selenium (<50 μg/kg) diets four weeks prior to mating and throughout gestation. At embryonic day (E)18.5, pregnant mice were sacrificed followed by collection of maternal and foetal tissues. A subset of mice littered down, and offspring were monitored from postnatal day (PN) 8, weaned at PN24 and sacrificed at PN180, followed by tissue collection. Following RNA extraction, the expression of 14 selenoproteins was assessed with qPCR in liver, kidneys, muscle and placenta. Selenium deficiency downregulated expression (Ptrt < 0.05) of many selenoproteins in maternal tissues and the placenta. However, foetal selenoprotein expression was upregulated (Ptrt < 0.05) in all tissues, especially the kidneys. This was not reflected at PN180; however, a sexually dimorphic relationship in selenoprotein expression was observed in offspring. This study demonstrates the selenoproteome is sensitive to dietary selenium levels, which may be exacerbated by pregnancy. We concluded that transcriptional regulation of selenoproteins is complex and multifaceted, with expression exhibiting tissue-, age- and sex-specificities.
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Affiliation(s)
- Pierre Hofstee
- School of Medical Science, Menzies Health Institute Queensland, Griffith University Gold, Coast Campus, Southport, QLD 4215, Australia;
| | - James S.M. Cuffe
- The School of Biomedical Sciences, The University of Queensland, St Lucia, QLD 4072, Australia
- Correspondence: (J.S.M.C.); (A.V.P.); Tel.: +61-755529774 (A.V.P.)
| | - Anthony V. Perkins
- School of Medical Science, Menzies Health Institute Queensland, Griffith University Gold, Coast Campus, Southport, QLD 4215, Australia;
- Correspondence: (J.S.M.C.); (A.V.P.); Tel.: +61-755529774 (A.V.P.)
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Maternal Selenium Deficiency in Mice Alters Offspring Glucose Metabolism and Thyroid Status in a Sexually Dimorphic Manner. Nutrients 2020; 12:nu12010267. [PMID: 31968625 PMCID: PMC7020085 DOI: 10.3390/nu12010267] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 01/16/2020] [Accepted: 01/19/2020] [Indexed: 12/13/2022] Open
Abstract
Selenium is an essential micronutrient commonly deficient in human populations. Selenium deficiency increases the risks of pregnancy complications; however, the long-term impact of selenium deficiency on offspring disease remains unclear. This study investigates the effects of selenium deficiency during pregnancy on offspring metabolic function. Female C57BL/6 mice were allocated to control (>190 μg selenium/kg, n = 8) or low selenium (<50 μg selenium/kg, n = 8) diets prior to mating and throughout gestation. At postnatal day (PN) 170, mice underwent an intraperitoneal glucose tolerance test and were culled at PN180 for biochemical analysis. Mice exposed to selenium deficiency in utero had reduced fasting blood glucose but increased postprandial blood glucose concentrations. Male offspring from selenium-deficient litters had increased plasma insulin levels in conjunction with reduced plasma thyroxine (tetraiodothyronine or T4) concentrations. Conversely, females exposed to selenium deficiency in utero exhibited increased plasma thyroxine levels with no change in plasma insulin. This study demonstrates the importance of adequate selenium intake around pregnancy for offspring metabolic health. Given the increasing prevalence of metabolic disease, this study highlights the need for appropriate micronutrient intake during pregnancy to ensure a healthy start to life.
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