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Mahmood S, Tanvir EM, Komarova T, Islam MN, Khatun M, Hossain MF, Ng JC, Whitfield KM, Hossain MS, Khalil MI, Shaw PN. Relationships between growth indicators, liver and kidney function markers, and blood concentrations of essential and potentially toxic elements in environmentally exposed young children. Int J Hyg Environ Health 2023; 253:114237. [PMID: 37544043 DOI: 10.1016/j.ijheh.2023.114237] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 07/08/2023] [Accepted: 07/28/2023] [Indexed: 08/08/2023]
Abstract
Environmental exposure to multiple metals and metalloids is widespread, leading to a global concern relating to the adverse health effects of mixed-metals exposure, especially in young children living around industrial areas. This study aimed to quantify the concentrations of essential and potentially toxic elements in blood and to examine the potential associations between multiple elements exposures, growth determinants, and liver and kidney function biomarkers in children living in several industrial areas in Dhaka, Bangladesh. The blood distribution of 20 trace elements As, Ag, Bi, Br, Cd, Co, Cr, Cu, I, Mn, Hg, Mo, Ni, Pb, Se, Sb, Tl, V, U, and Zn, growth determinants such as body mass index and body fats, blood pressure, liver and kidney injury biomarkers including serum alanine aminotransferase and alkaline phosphatase activities, serum calcium, and creatinine levels, blood urea nitrogen, and hemoglobin concentrations, and glomerular filtration rate were measured in 141 children, aged six to 16 years. Among these elements, blood concentrations of Ag, U, V, Cr, Cd, Sb, and Bi were measured below LOQs and excluded from subsequent statistical analysis. This comprehensive study revealed that blood concentrations of these elements in children, living in industrial areas, exceeded critical reference values to varying extents; elevated exposure to As, Pb, Br, Cu, and Se was found in children living in multiple industrial areas. A significant positive association between elevated blood Tl concentration and obesity (β = 0.300, p = 0.007) and an inverse relationship between lower As concentration and underweight (β = -0.351, p < 0.001) compared to healthy weight children indicate that chronic exposure to Tl and As may influence the metabolic burden and physical growth in children. Concentration-dependent positive associations were observed between the blood concentrations of Cu, Se, and Br and hepatic- and renal dysfunction biomarkers, an inverse association with blood Mo and I level, however, indicates an increased risk of Cu, Se, and Br-induced liver and kidney toxicity. Further in-depth studies are warranted to elucidate the underlying mechanisms of the observed associations. Regular biomonitoring of elemental exposures is also indispensable to regulate pollution in consideration of the long-term health effects of mixed-elements exposure in children.
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Affiliation(s)
- Shakil Mahmood
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh; Department of Biochemistry, Gonoshasthaya Samaj Vittik Medical College, Gono Bishwabidyalay (University), Dhaka, 1344, Bangladesh
| | - E M Tanvir
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, 4072, Australia; Institute of Food & Radiation Biology, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Savar, Dhaka, 1349, Bangladesh
| | - Tatiana Komarova
- Inorganic Chemistry Laboratory, Queensland Public Health and Scientific Services, Coopers Plains, Queensland, 4108, Australia
| | - Md Nazrul Islam
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane, Queensland, 4102, Australia; Department of Applied Chemistry and Chemical Engineering, University of Chittagong, Chittagong, 4331, Bangladesh
| | - Mahbuba Khatun
- Department of Biochemistry and Molecular Biology, Gono Bishwabidyalay (University), Dhaka, 1344, Bangladesh
| | - Md Fuad Hossain
- Department of Biochemistry and Molecular Biology, Gono Bishwabidyalay (University), Dhaka, 1344, Bangladesh
| | - Jack C Ng
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Brisbane, Queensland, 4102, Australia
| | - Karen M Whitfield
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, 4072, Australia; Pharmacy Department, Royal Brisbane and Women's Hospital, Metro North Health Services District, Herston, Queensland, 4029, Australia
| | - Md Sabir Hossain
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh
| | - Md Ibrahim Khalil
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh.
| | - P Nicholas Shaw
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, 4072, Australia.
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Liu ZM, Wu Y, Long HH, Chen CG, Wang C, Ye YB, Shen ZY, Ye MT, Zhang SJ, Li MM, Pan WJ. Associations of Maternal Serum Iodine Concentration with Obstetric Complications and Birth Outcomes-Longitudinal Analysis Based on the Huizhou Mother-Infant Cohort, South China. Nutrients 2023; 15:2868. [PMID: 37447195 DOI: 10.3390/nu15132868] [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: 04/24/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 07/15/2023] Open
Abstract
This study aimed to explore the temporal associations between maternal serum iodine concentration (SIC) and common pregnancy outcomes in Chinese women. Eligible singleton pregnant women aged 20-34 years were selected, and their fasting blood samples were collected during early (T1, n = 1101) and mid-pregnancy (T2, n = 403) for SIC testing by inductively coupled plasma mass spectrometry. Multivariable linear regression indicated that log10SIC at T1 (β = -0.082), T2 (β = -0.198), and their % change (β = -0.131) were inversely associated with gestational weight gain (GWG, all p < 0.05). Maternal log10SIC at both T1 (β = 0.077) and T2 (β = 0.105) were positively associated with the Apgar score at 1 min (both p < 0.05). Women in the third quartile (Q3) of SIC at T1 had a lower risk of small for gestational age (SGA, OR = 0.405, 95% CI: 0.198-0.829) compared with those in Q4. Restricted cubic spline regression suggested a U-shaped association between SIC and SGA risk, and SIC above 94 μg/L at T1 was the starting point for an increased risk of SGA. The risk of premature rupture of membrane (PROM) increased by 96% (OR = 1.960, 95% CI: 1.010-3.804) in Q4 compared to that in Q1. Our longitudinal data from an iodine-replete region of China indicated that high maternal SIC could restrict GWG and improve Apgar scores at delivery, but might increase the risk of SGA and PROM.
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Affiliation(s)
- Zhao-Min Liu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, North Campus, Guangzhou 510080, China
| | - Yi Wu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, North Campus, Guangzhou 510080, China
| | - Huan-Huan Long
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, North Campus, Guangzhou 510080, China
| | - Chao-Gang Chen
- Department of Clinical Nutrition, Second Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Cheng Wang
- Department of Clinical Nutrition, Second Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Yan-Bin Ye
- Department of Clinical Nutrition, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Zhen-Yu Shen
- Department of Paediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Ming-Tong Ye
- Huizhou First Maternal and Child Health Care Hospital, Huizhou 516000, China
| | - Su-Juan Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, North Campus, Guangzhou 510080, China
| | - Min-Min Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, North Campus, Guangzhou 510080, China
| | - Wen-Jing Pan
- Huizhou First Maternal and Child Health Care Hospital, Huizhou 516000, China
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The Role of Selected Trace Elements in Oxidoreductive Homeostasis in Patients with Thyroid Diseases. Int J Mol Sci 2023; 24:ijms24054840. [PMID: 36902266 PMCID: PMC10003705 DOI: 10.3390/ijms24054840] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
Impaired levels of selenium (Se), zinc (Zn), copper (Cu), iron (Fe), manganese (Mn) and iodine (I) in the organism may adversely affect the thyroid endocrine system. These trace elements play a role in the fight against oxidative stress as components of enzymes. Oxidative-antioxidant imbalance is considered a possible factor in many pathological conditions, including various thyroid diseases. In the available literature, there are few scientific studies showing a direct correlation of the effect of supplementation of trace elements on slowing down or preventing the occurrence of thyroid diseases in combination with the improvement of the antioxidant profile, or through the action of these elements as antioxidants. Among the available studies, it has been shown that an increase in lipid peroxidation levels and a decrease in the overall antioxidant defense status occur during such thyroid diseases as thyroid cancer, Hashimoto's thyroiditis and dysthyroidism. In studies in which trace elements were supplemented, the following were observed: a decrease in the level of malondialdehyde after supplementation with Zn during hypothyroidism and reduction in the malondialdehyde level after Se supplementation with a simultaneous increase in the total activity status and activity of antioxidant defense enzymes in the course of autoimmune thyroiditis. This systematic review aimed to present the current state of knowledge about the relationship between trace elements and thyroid diseases in terms of oxidoreductive homeostasis.
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de Paula HL, de Lucca L, Vendrame SA, Wess LC, dos Santos Stein C, Moresco RN, Beck ST, de Lima Gonçalves T. Delta-aminolevulinate dehydratase enzyme activity and the oxidative profile of pregnant women being treated for acute toxoplasmosis. Microb Pathog 2022; 164:105455. [DOI: 10.1016/j.micpath.2022.105455] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 01/08/2023]
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Businge CB, Longo-Mbenza B, Kengne AP. Iodine deficiency in pregnancy along a concentration gradient is associated with increased severity of preeclampsia in rural Eastern Cape, South Africa. BMC Pregnancy Childbirth 2022; 22:98. [PMID: 35120491 PMCID: PMC8815178 DOI: 10.1186/s12884-021-04356-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 12/17/2021] [Indexed: 12/16/2022] Open
Abstract
Background Preeclampsia is a leading cause of maternal mortality and morbidity in South Africa. Iodine deficiency in pregnancy, which is amenable to correction through iodine supplementation, has been reported to increase the risk of preeclampsia. However, the association of iodine nutrition status with preeclampsia in South Africa has not been studied. Methods We enrolled 51 randomly selected normotensive pregnant controls at term together with 51 consecutively selected cases of preeclampsia and 51 cases of severe preeclampsia/eclampsia, all in the third trimester, from Mthatha Regional and Nelson Mandela Academic Hospital in the Eastern Cape Province. Urinary iodine concentration (UIC), serum thyroid-stimulating hormone (TSH), triiodothyronine (FT3), thyroxine (FT4) and thyroglobulin (Tg) levels were compared between cases and controls. Results The respective chronological and gestational ages at enrolment for normotensive, preeclampsia and severe preeclampsia/eclampsia participants were: age 23, 24 and 19 years (p = 0.001), and gestational age 38, 34, and 35 weeks (p < 0.001). The median gravidity was 1 for all three groups. The median UIC, FT4, FT3 revealed a decreasing and Tg a rising trend with the severity of preeclampsia (p < 0.05). TSH had a non-significant rising trend (p > 0.05). The respective median values for normotensive, preeclampsia and severe preeclampsia/eclampsia participants were UIC 217.1, 127.7, and 98.8 μg/L; FT4 14.2, 13.7, and 12. pmol/L; FT3 4.8, 4.4, and 4.0 pmol//L; Tg 19.4, 21.4, and 32. Nine microgram per liter; TSH 2.3, 2.3, and 2.5 mIU/L. UIC < 100 μg/L, Tg > 16 μg/L and FT4 < 11.3 pmol/L were independent predictors of preeclampsia/eclampsia syndrome. Conclusion Women with severe preeclampsia/eclampsia had significantly low UIC and high Tg, suggesting protracted inadequate iodine intake. Inadequate iodine intake during pregnancy severe enough to cause elevated Tg and FT4 deficiency was associated with an increased risk of severe preeclampsia/eclampsia.
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Affiliation(s)
- Charles Bitamazire Businge
- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Walter Sisulu University, Private Bag x1 WSU, Mthatha, 5117, South Africa. .,Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
| | - Benjamin Longo-Mbenza
- Faculty of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of Congo.,LOMO University of Research, Kinshasa, Democratic Republic of Congo
| | - Andre Pascal Kengne
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.,Non-Communicable Disease Research Unit, South African Medical Research Council, Cape Town, South Africa
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de Mendonça ELSS, Fragoso MBT, de Oliveira JM, Xavier JA, Goulart MOF, de Oliveira ACM. Gestational Diabetes Mellitus: The Crosslink among Inflammation, Nitroxidative Stress, Intestinal Microbiota and Alternative Therapies. Antioxidants (Basel) 2022; 11:129. [PMID: 35052633 PMCID: PMC8773111 DOI: 10.3390/antiox11010129] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/30/2021] [Accepted: 01/04/2022] [Indexed: 01/09/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is characterized by a set of metabolic complications arising from adaptive failures to the pregnancy period. Estimates point to a prevalence of 3 to 15% of pregnancies. Its etiology includes intrinsic and extrinsic aspects of the progenitress, which may contribute to the pathophysiogenesis of GDM. Recently, researchers have identified that inflammation, oxidative stress, and the gut microbiota participate in the development of the disease, with potentially harmful effects on the health of the maternal-fetal binomial, in the short and long terms. In this context, alternative therapies were investigated from two perspectives: the modulation of the intestinal microbiota, with probiotics and prebiotics, and the use of natural products with antioxidant and anti-inflammatory properties, which may mitigate the endogenous processes of the GDM, favoring the health of the mother and her offspring, and in a future perspective, alleviating this critical public health problem.
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Affiliation(s)
- Elaine Luiza Santos Soares de Mendonça
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
| | - Marilene Brandão Tenório Fragoso
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
| | - Jerusa Maria de Oliveira
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
| | - Jadriane Almeida Xavier
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
| | - Marília Oliveira Fonseca Goulart
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
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7
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Candido AC, Azevedo FM, Machamba AAL, Pinto CA, Lopes SO, de Souza Macedo M, Ribeiro SAV, Priore SE, do Carmo Castro Franceschini S. Implications of iodine deficiency by gestational trimester: a systematic review. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2021; 64:507-513. [PMID: 34033289 PMCID: PMC10118970 DOI: 10.20945/2359-3997000000289] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
As pregnant women are susceptible to changes in iodine, which can cause miscarriage, goiter, thyroid nodules, hypothyroidism, in addition to fetal neurological impairment or development. The aim of this study was to verify the implications of the iodine alteration in each gestational trimester and its consequences of physiological justification. The review was based on PRISMA. Searching for articles that took place in March 2020 without delimiting data. As bases consulted were the Clinical Trials, Cochrane Library, Lilacs and Medline (PubMed). The descriptors were combined as follows: "pregnancy" AND "iodine deficiency". Articles that addressed iodine deficiency and its implications were included. The selection followed the steps of reading the titles, abstracts and full articles. To assess the methodological quality of the studies, the STROBE Instruction instrument was used. The research resulted in 1,266 studies and 11 were included. In assessing methodological quality, the lowest score was and the maximum 20. According to studies, the fourth most affected by iodine loss are the second and third, it is possible to increase the volume and pneumatic nodules, subclinical hypothyroidism, pre-eclampsia, among others. The damages caused by iodine deficiency in the first or second trimester are still reversible, therefore, they need to be diagnosed early, to guarantee an iodic homeostasis and prevent damage to the health of the mother-child binomial.
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Affiliation(s)
- Aline Carare Candido
- Departamento de Nutrição e Saúde, Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil,
| | | | | | - Carina Aparecida Pinto
- Departamento de Nutrição e Saúde, Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil
| | - Sílvia Oliveira Lopes
- Departamento de Nutrição e Saúde, Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil
| | | | | | - Silvia Eloiza Priore
- Departamento de Nutrição e Saúde, Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil
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Habibi N, Jankovic-Karasoulos T, Leemaqz SYL, Francois M, Zhou SJ, Leifert WR, Perkins AV, Roberts CT, Bianco-Miotto T. Effect of Iodine and Selenium on Proliferation, Viability, and Oxidative Stress in HTR-8/SVneo Placental Cells. Biol Trace Elem Res 2021; 199:1332-1344. [PMID: 32623623 DOI: 10.1007/s12011-020-02277-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/29/2020] [Indexed: 12/14/2022]
Abstract
Adequate maternal micronutrition is vital for placental formation, fetal growth, and development. Oxidative stress adversely affects placental development and function and an association between deficient placental development, oxidative stress, and micronutrient deficiency has been observed. Selenium and iodine are two essential micronutrients with antioxidant properties. Epidemiological studies have shown that poor micronutrient status in pregnant women is associated with a higher incidence of pregnancy complications. The aim of this study was to determine how selenium, iodine, and their combination impact oxidative stress in placental trophoblast cells. HTR8/SVneo extravillous trophoblasts were supplemented with a concentration range of organic and inorganic selenium, potassium iodide, or their combination for 24 h. Oxidative stress was then induced by treating cells with menadione or H2O2 for 24 h. Cell viability and lipid peroxidation as the biomarker of oxidative stress were assessed at 48 h. Both menadione and H2O2 reduced cell viability and increased lipid peroxidation (P < 0.05). Greater cell viability was found in selenium-supplemented cells when compared with vehicle treated cells (P < 0.05). Selenium and iodine supplementation separately or together were associated with lower lipid peroxidation compared with vehicle control (P < 0.05). Supplementation with the combination of selenium and iodine resulted in a greater reduction in lipid peroxidation compared with selenium or iodine alone (P < 0.05). Oxidative stress negatively impacts trophoblast cell survival and cellular integrity. Selenium and iodine protect placental trophoblasts against oxidative stress. Further research is warranted to investigate the molecular mechanisms by which selenium and iodine act in the human placenta.
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Affiliation(s)
- Nahal Habibi
- School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Tanja Jankovic-Karasoulos
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Shalem Yiner-Lee Leemaqz
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Maxime Francois
- CSIRO Health and Biosecurity, Future Science Platforms Probing Biosystems, Adelaide, SA, 5000, Australia
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Shao Jia Zhou
- School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Wayne R Leifert
- CSIRO Health and Biosecurity, Future Science Platforms Probing Biosystems, Adelaide, SA, 5000, Australia
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Anthony V Perkins
- School of Medical Science, Griffith University, Gold Coast Campus, Parklands Drive, Southport, QLD, 9726, Australia
| | - Claire T Roberts
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
- College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia
| | - Tina Bianco-Miotto
- School of Agriculture, Food and Wine, Waite Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia.
- Robinson Research Institute, University of Adelaide, Adelaide, SA, 5005, Australia.
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Effect of Selenium and Iodine on Oxidative Stress in the First Trimester Human Placenta Explants. Nutrients 2021; 13:nu13030800. [PMID: 33671070 PMCID: PMC7997475 DOI: 10.3390/nu13030800] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/20/2021] [Accepted: 02/25/2021] [Indexed: 01/06/2023] Open
Abstract
Imbalanced maternal micronutrient status, poor placentation, and oxidative stress are associated with greater risk of pregnancy complications, which impact mother and offspring health. As selenium, iodine, and copper are essential micronutrients with key roles in antioxidant systems, this study investigated their potential protective effects on placenta against oxidative stress. First trimester human placenta explants were treated with different concentrations of selenium (sodium selenite), iodine (potassium iodide), their combination or copper (copper (II) sulfate). The concentrations represented deficient, physiological, or super physiological levels. Oxidative stress was induced by menadione or antimycin. Placenta explants were collected, fixed, processed, and embedded for laser ablation inductively coupled plasma-mass spectrometry (LA ICP-MS) element imaging or immunohistochemical labelling. LA ICP-MS showed that placenta could uptake selenium and copper from the media. Sodium selenite and potassium iodide reduced DNA damage and apoptosis (p < 0.05). Following oxidative stress induction, a higher concentration of sodium selenite (1.6 µM) was needed to reduce DNA damage and apoptosis while both concentrations of potassium iodide (0.5 and 1 µM) were protective (p < 0.05). A high concentration of copper (40 µM) increased apoptosis and DNA damage but this effect was no longer significant after induction of oxidative stress. Micronutrients supplementation can increase their content within the placenta and an optimal maternal micronutrient level is essential for placenta health.
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Neven KY, Cox B, Cosemans C, Gyselaers W, Penders J, Plusquin M, Roels HA, Vrijens K, Ruttens A, Nawrot TS. Lower iodine storage in the placenta is associated with gestational diabetes mellitus. BMC Med 2021; 19:47. [PMID: 33602219 PMCID: PMC7893873 DOI: 10.1186/s12916-021-01919-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 01/19/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The micronutrient iodine is essential for a healthy intrauterine environment and is required for optimal fetal growth and neurodevelopment. Evidence linking urinary iodine concentrations, which mainly reflects short-term iodine intake, to gestational diabetes mellitus (GDM) is inconclusive. Although the placental concentrations would better reflect the long-term gestational iodine status, no studies to date have investigated the association between the placental iodine load and the risk at GDM. Moreover, evidence is lacking whether placental iodine could play a role in biomarkers of insulin resistance and β-cell activity. METHODS We assessed the incidence of GDM between weeks 24 and 28 of gestation for 471 mother-neonate pairs from the ENVIRONAGE birth cohort. In placentas, we determined the iodine concentrations. In maternal and cord blood, we measured the insulin concentrations, the Homeostasis Model Assessment (HOMA) for insulin resistance (IR) index, and β-cell activity. Logistic regression was used to estimate the odds ratios (OR) of GDM, and the population attributable factor (PAF) was calculated. Generalized linear models estimated the changes in insulin, HOMA-IR, and β-cell activity for a 5 μg/kg increase in placental iodine. RESULTS Higher placental iodine concentrations decreased the risk at GDM (OR = 0.82; 95%CI 0.72 to 0.93; p = 0.003). According to the PAF, 54.2% (95%CI 11.4 to 82.3%; p = 0.0006) of the GDM cases could be prevented if the mothers of the lowest tertile of placental iodine would have placental iodine levels as those belonging to the highest tertile. In cord blood, the plasma insulin concentration was inversely associated with the placental iodine load (β = - 4.8%; 95%CI - 8.9 to - 0.6%; p = 0.026). CONCLUSIONS Higher concentrations of placental iodine are linked with a lower incidence of GDM. Moreover, a lower placental iodine load is associated with an altered plasma insulin concentration, HOMA-IR index, and β-cell activity. These findings postulate that a mild-to-moderate iodine deficiency could be linked with subclinical and early-onset alterations in the normal insulin homeostasis in healthy pregnant women. Nevertheless, the functional link between gestational iodine status and GDM warrants further research.
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Affiliation(s)
- Kristof Y Neven
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Bianca Cox
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Charlotte Cosemans
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | | | - Joris Penders
- Laboratory of Clinical Biology, East-Limburg Hospital, Genk, Belgium
| | - Michelle Plusquin
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Harry A Roels
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium.,Louvain Centre for Toxicology and Applied Pharmacology, Université catholique de Louvain, Brussels, Belgium
| | - Karen Vrijens
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Ann Ruttens
- Sciensano, SD Chemical and Physical Health Risks, Tervuren, Belgium
| | - Tim S Nawrot
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium. .,Department of Public Health & Primary Care, Leuven University, Leuven, Belgium.
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11
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Businge CB, Usenbo A, Longo-Mbenza B, Kengne AP. Insufficient iodine nutrition status and the risk of pre-eclampsia: a systemic review and meta-analysis. BMJ Open 2021; 11:e043505. [PMID: 33568375 PMCID: PMC7878161 DOI: 10.1136/bmjopen-2020-043505] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Although subclinical hypothyroidism in pregnancy is one of the established risk factors for pre-eclampsia, the link between iodine deficiency, the main cause of hypothyroidism, and pre-eclampsia remains uncertain. We conducted a systematic review to determine the iodine nutrition status of pregnant women with and without pre-eclampsia and the risk of pre-eclampsia due to iodine deficiency. METHODS MEDLINE, EMBASE, Google Scholar, Scopus and Africa-Wide Information were searched up to 30th June 2020. Random-effect model meta-analysis was used to pool mean difference in urinary iodine concentration (UIC) between pre-eclamptic and normotensive controls and pool ORs and incidence rates of pre-eclampsia among women with UIC <150 µg/L. RESULTS Five eligible studies were included in the meta-analysis. There was a significant difference in the pooled mean UIC of 254 pre-eclamptic women and 210 normotensive controls enrolled in three eligible case-control studies (mean UIC 164.4 µg/L (95% CI 45.1 to 283.6, p<0.01, I2 >50)). The overall proportions of pre-eclampsia among women with UIC <150 µg/L and UIC >150 µg/L in two cross-sectional studies were 203/214 and 67/247, respectively, with a pooled OR of 0.01 (95% CI 0 to 4.23, p=0.14, I2 >50) for pre-eclampsia among women with UIC >150 µg/L. The overall incidence of pre-eclampsia among women with UIC <150 µg/L and UIC >150 µg/L in two cohort studies was 6/1411 and 3/2478, respectively, with a pooled risk ratio of 2.85 (95% CI 0.42 to 20.05, p=0.09, I2 <25). CONCLUSION Although pre-eclamptic women seem to have lower UIC than normotensive pregnant women, the available data are insufficient to provide a conclusive answer on association of iodine deficiency with pre-eclampsia risk. PROSPERO REGISTRATION NUMBER CRD42018099427.
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Affiliation(s)
- Charles Bitamazire Businge
- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Walter Sisulu University, Mthatha, South Africa
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Anthony Usenbo
- Department of Anaesthesiolgy, Nelson Mandela Academic Hospital, Mthatha, South Africa
| | - Benjamin Longo-Mbenza
- Faculty of Medicine, University of Kinshasa and LOMO University of Research, Kinshasa, Democratic Republic of Congo
| | - A P Kengne
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Non-Communicable Disease Research Unit, South African Medical Research Council, Cape Town, South Africa
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12
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Mallawa Kankanamalage O, Zhou Q, Li X. Understanding the Pathogenesis of Gestational Hypothyroidism. Front Endocrinol (Lausanne) 2021; 12:653407. [PMID: 34113317 PMCID: PMC8185325 DOI: 10.3389/fendo.2021.653407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 04/01/2021] [Indexed: 11/26/2022] Open
Abstract
Pregnancy is a complex state with many endocrinological challenges to a woman's physiology. Gestational Hypothyroidism (GHT) is an emerging condition where insufficiency of the thyroid gland has developed during pregnancy in a previously euthyroid woman. It is different to overt hypothyroidism, where marked elevation of thyroid-stimulating hormone with corresponding reduction in free thyroxine levels, is well known to cause detrimental effects to both the mother and the baby. During the past couple of decades, it has been shown that GHT is associated with multiple adverse maternal and fetal outcomes such as miscarriage, pre-eclampsia, placental abruption, fetal loss, premature delivery, neurocognitive and neurobehavioral development. However, three randomized controlled trials and a prospective cohort study performed within the last decade, show that there is no neurodevelopmental improvement in the offspring of mothers who received levothyroxine treatment for GHT. Thus, the benefit of initiating treatment for GHT is highly debated within the clinical community as there may also be risks associated with over-treatment. In addition, regulatory mechanisms that could possibly lead to GHT during pregnancy are not well elucidated. This review aims to unravel pregnancy induced physiological challenges that could provide basis for the development of GHT. During pregnancy, there is increased renal clearance of iodine leading to low iodine state. Also, an elevated estrogen level leading to an increase in circulating thyroglobulin level and a decrease in free thyroxine level. Moreover, placenta secretes compounds such as human chorionic gonadotropin (hCG), placental growth factor (PIGF) and soluble FMS-like tyrosine kinase-1 (s-Flt1) that could affect the thyroid function. In turn, the passage of thyroid hormones and iodine to the fetus is highly regulated within the placental barrier. Together, these mechanisms are hypothesized to contribute to the development of intolerance of thyroid function leading to GHT in a vulnerable individual.
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Affiliation(s)
| | - Qiongjie Zhou
- Department of Obstetrics and Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- *Correspondence: Qiongjie Zhou, ; Xiaotian Li,
| | - Xiaotian Li
- Department of Obstetrics and Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- *Correspondence: Qiongjie Zhou, ; Xiaotian Li,
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13
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Nazarpour S, Ramezani Tehrani F, Behboudi-Gandevani S, Bidhendi Yarandi R, Azizi F. Maternal Urinary Iodine Concentration and Pregnancy Outcomes in Euthyroid Pregnant Women: a Systematic Review and Meta-analysis. Biol Trace Elem Res 2020; 197:411-420. [PMID: 31873919 DOI: 10.1007/s12011-019-02020-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 12/16/2019] [Indexed: 01/28/2023]
Abstract
Iodine is an essential macronutrient for feto-maternal growth and development. Emerging evidence suggests that maternal iodine deficiency during pregnancy is potentially associated with both maternal and fetal adverse outcomes. The aim of this systematic review and meta-analysis was to investigate the association between maternal iodine status in euthyroid pregnant women and adverse pregnancy outcomes. A comprehensive literature search was performed in PubMed, Web of Science and Scopus up to October 2019 for retrieving related published articles in English. World Health Organization maternal median urinary iodine concentration (UIC) classification was used as follows: median UIC of less than 100, 100-149, 150-249, and more than 250 μg/L, for moderate-to-severe iodine deficiency, mild iodine deficiency, iodine adequate and more than adequate-to-excessive iodine, respectively. The primary outcomes of interest in this meta-analysis were the pooled prevalence and pooled odds ratio of the preterm birth, low birth weight (LBW), and one composite outcome of hypertensive disorders of pregnancy comprising pregnancy hypertension and preeclampsia. The secondary outcome was pooled mean of neonatal characteristics including birth weight, head circumference, Apgar score, and gestational age at birth. A total of 6 studies involving 7698 participants were included in this meta-analysis. The pooled prevalence of preterm birth, LBW, and hypertensive disorders of pregnancy were not statistically significantly different in the four groups of UIC levels. The pooled prevalence of preterm birth was 0.05, 0.04, 0.04, and 0.03 in UIC < 100, 100-149, 150-249, and > 250 μg/L, respectively. No evidence of an association was observed among the odds of preterm birth, LBW, and hypertensive disorders of pregnancy in euthyroid pregnant women with UIC between 100 and 149, 150-249, and > 250 μg/L compared with UCI < 100 μg/L. Likewise, there were not any statistical significant differences between the neonatal characteristics in different UIC groups. The results remained unchanged after subgroup analysis based on UIC less than 150 μg/L as abnormal UIC level. The present meta-analysis showed that the UIC of euthyroid pregnant women is not generally associated with the pregnancy outcomes and it per se is an insufficient indicator for prediction of pregnancy complications. The results of this study are important for reproductive healthcare providers and policymakers in providing appropriate healthcare service for pregnant women. However, further studies are needed to confirm these findings.
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Affiliation(s)
- Sima Nazarpour
- Department of Midwifery, Varamin-Pishva Branch, Islamic Azad University, Tehran, Iran
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 24 Parvaneh, Yaman Street, Velenjak, 19395-4763, Tehran, 1985717413, Islamic Republic of Iran
| | - Fahimeh Ramezani Tehrani
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 24 Parvaneh, Yaman Street, Velenjak, 19395-4763, Tehran, 1985717413, Islamic Republic of Iran.
| | - Samira Behboudi-Gandevani
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 24 Parvaneh, Yaman Street, Velenjak, 19395-4763, Tehran, 1985717413, Islamic Republic of Iran
| | - Razieh Bidhendi Yarandi
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 24 Parvaneh, Yaman Street, Velenjak, 19395-4763, Tehran, 1985717413, Islamic Republic of Iran
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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14
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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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15
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Impact of Dietary Habit, Iodine Supplementation and Smoking Habit on Urinary Iodine Concentration During Pregnancy in a Catalonia Population. Nutrients 2020; 12:nu12092656. [PMID: 32878172 PMCID: PMC7551663 DOI: 10.3390/nu12092656] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/19/2020] [Accepted: 08/27/2020] [Indexed: 11/16/2022] Open
Abstract
(1) Background: The nutritional status of women during pregnancy can have a considerable effect on maternal and fetal health, and on the perinatal outcome. Aim: to assess the changes occurring in dietary iodine intake, potassium iodide supplementation, and smoking habit, and the impact of these changes on the urinary iodine concentration (UIC) during pregnancy in a population of women in Catalonia (Spain). (2) Methods: Between 2009–2011, an observational study included a cohort of women whose pregnancies were monitored in the public health system in the Central and North Metropolitan areas of Catalonia. Women received individual educational counseling, a dietary questionnaire was completed, and a urine sample was collected for iodine determination at each trimester visit. (3) Results: 633 (67.9%) women answered the questionnaire at all 3 visits. The percentage of women with a desirable UIC (≥150 μg/L) increased from the first to the second trimester and remained stable in the third (57.3%, 68.9%, 68%; p < 0.001). Analysis of the relationship between UIC ≥ 150 μg/L and the women’s dietary habits showed that the percentage with UIC ≥ 150 μg/L increased with greater consumption of milk in the first trimester, and the same was true for iodized salt use in all three trimesters and iodine supplementation in all three. (4) Conclusion: During pregnancy, increased intake of milk, iodized salt, and iodine supplements were associated with an increase in the UIC.
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16
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Chen C, Chen Y, Zhai H, Xia F, Han B, Zhang W, Wang Y, Wan H, Wang N, Lu Y. Iodine nutrition status and its association with microvascular complications in urban dwellers with type 2 diabetes. Nutr Metab (Lond) 2020; 17:70. [PMID: 32821267 PMCID: PMC7433180 DOI: 10.1186/s12986-020-00493-5] [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: 05/28/2020] [Accepted: 08/11/2020] [Indexed: 02/07/2023] Open
Abstract
Background The principal function of iodine acts on thyroid function, but in recent years, the role of iodine deficiency in metabolism has also been gradually revealed. We aimed to investigate the current status of iodized salt consumption and urinary iodine concentration (UIC) in an urban Chinese population with type 2 diabetes, and to further explore whether UIC was associated with diabetic microvascular complications. Methods Four thousand five hundred fifty-nine subjects with diabetes from 7 communities in downtown Shanghai were enrolled in the cross-sectional Metal Study in 2018. UIC was detected using an inductively coupled plasma-mass spectrometer. Diabetic kidney disease (DKD) was defined as urinary albumin-to-creatinine ratio (UACR) > 30 mg/g or estimated glomerular filtration rate < 60 mL/min/1.73 m2. Diabetic retinopathy (DR) was evaluated by high-quality fundus photographs and was remotely read by ophthalmologist. Results The median UIC of subjects with diabetes was 115.4 μg/L (78.9–170.8) in downtown Shanghai. Among all the subjects, 52.7% consumed non-iodized salt and 40.4% were iodine deficient. Iodine deficiency (UIC < 100 μg/L) was associated with an increased odds of DKD (OR 1.17; 95%CI 1.01–1.37) after adjustment for age, sex, education, current smokers, BMI, HbA1c, duration of diabetes, dyslipidemia, thyroid-stimulating hormone and free thyroxine. No association was observed between UIC and DR after multivariable adjustment. Conclusions A concerning number of subjects with diabetes consumed non-iodized salt and suffered from iodine deficiency in coastal regions of China. Low UIC might be a risk factor for DKD, which should be further confirmed by longitudinal prospective studies.
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Affiliation(s)
- Chi Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
| | - Yi Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
| | - Hualing Zhai
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
| | - Fangzhen Xia
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
| | - Bing Han
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
| | - Wen Zhang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
| | - Yuying Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
| | - Heng Wan
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
| | - Ningjian Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
| | - Yingli Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011 China
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17
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Rodríguez-Cano AM, Calzada-Mendoza CC, Estrada-Gutierrez G, Mendoza-Ortega JA, Perichart-Perera O. Nutrients, Mitochondrial Function, and Perinatal Health. Nutrients 2020; 12:E2166. [PMID: 32708345 PMCID: PMC7401276 DOI: 10.3390/nu12072166] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/13/2020] [Accepted: 07/20/2020] [Indexed: 12/16/2022] Open
Abstract
Mitochondria are active independent organelles that not only meet the cellular energy requirement but also regulate central cellular activities. Mitochondria can play a critical role in physiological adaptations during pregnancy. Differences in mitochondrial function have been found between healthy and complicated pregnancies. Pregnancy signifies increased nutritional requirements to support fetal growth and the metabolism of maternal and fetal tissues. Nutrient availability regulates mitochondrial metabolism, where excessive macronutrient supply could lead to oxidative stress and contribute to mitochondrial dysfunction, while micronutrients are essential elements for optimal mitochondrial processes, as cofactors in energy metabolism and/or as antioxidants. Inadequate macronutrient and micronutrient consumption can result in adverse pregnancy outcomes, possibly through mitochondrial dysfunction, by impairing energy supply, one-carbon metabolism, biosynthetic pathways, and the availability of metabolic co-factors which modulate the epigenetic processes capable of establishing significant short- and long-term effects on infant health. Here, we review the importance of macronutrients and micronutrients on mitochondrial function and its influence on maternal and infant health.
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Affiliation(s)
- Ameyalli M Rodríguez-Cano
- Section for Postgraduate Studies and Research, Higher School of Medicine, Instituto Politécnico Nacional, Mexico City 11340, Mexico; (A.M.R.-C.); (C.C.C.-M.)
- Nutrition and Bioprogramming Department, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Montes Urales 800, Lomas de Virreyes, Mexico City 11000, Mexico
| | - Claudia C Calzada-Mendoza
- Section for Postgraduate Studies and Research, Higher School of Medicine, Instituto Politécnico Nacional, Mexico City 11340, Mexico; (A.M.R.-C.); (C.C.C.-M.)
| | - Guadalupe Estrada-Gutierrez
- Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Research Division; Montes Urales 800, Lomas de Virreyes, Mexico City 11000, Mexico;
| | - Jonatan A Mendoza-Ortega
- Immunobiochemistry Department, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Montes Urales 800, Lomas de Virreyes, Mexico City 11000, Mexico;
- Immunology Department, National School of Biological Sciences, Instituto Politécnico Nacional, Mexico City 11350, Mexico
| | - Otilia Perichart-Perera
- Nutrition and Bioprogramming Department, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Montes Urales 800, Lomas de Virreyes, Mexico City 11000, Mexico
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18
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Gajewska K, Błażewicz A, Laskowska M, Niziński P, Dymara-Konopka W, Komsta Ł. Chemical elements and preeclampsia - An overview of current problems, challenges and significance of recent research. J Trace Elem Med Biol 2020; 59:126468. [PMID: 32007824 DOI: 10.1016/j.jtemb.2020.126468] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 12/04/2019] [Accepted: 01/10/2020] [Indexed: 12/25/2022]
Abstract
OBJECTIVES Data on the elemental status, redistribution of the elements, role of occupational exposure and dietary assessment in preeclampsia (PE) are scarce. There are many disparities in the findings of essential and non-essential elements' role in PE. In this article we overview the changes in the content of selected elements in pregnancy complicated with the disorder of complex and not fully understood etiology. We have focused on important limitations and highlighted shortcomings in research from the last ten years period. METHODS The Scopus and PubMed electronic databases have been searched for English-language articles published within the time interval 2008-2018, with full text available and with the key words "preeclampsia" and "chemical element" (i.e. separately: Cd, Pb, As, Ni, Mo, Co, Cr, Mn, Se, I, Fe, Sr, Cu, Zn, Mg, K and Na) appearing in the title, abstract or keywords. RESULTS A total of 48 publications were eligible for this overview. Surprisingly only 4% of papers considered environmental exposure, 8%- diet and 2 %- comorbid diseases. In most published papers, occupational exposure was neglected. Meta-analysis was possible for seven elements in serum (Ca, Cu, Fe, Mg, Mn, Se, Zn), and two elements (Se, Zn) in plasma. It showed negative shift for most elements, however only several were statistically significant. CONLUSIONS The overview of the published data on PE and chemical elements yields varied results. Some of the reasons may be the difference in not duly validated method of determination, and huge discrepancies in study designs. The lack of detailed description of studied and control population and small number of samples constitute the most common limitations of such studies. Many of them describe the use of a single analytical procedure, therefore the quality of research may be insufficient to obtain reliable results. A history of elements' status and intake before and during pregnancy is usually not examined. Dietary assessment should be done at different stages of pregnancy, and whenever possible in the periconceptional period as well. It still needs to be established whether the deficiency of certain elements or their excess may be an etiopathogenic factor and a developmental cause of PE, and if it may serve as a target of actions in the causal treatment or even prevention of the occurrence of this disease.
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Affiliation(s)
- Katarzyna Gajewska
- Chair of Chemistry, Department of Analytical Chemistry, Medical University of Lublin, Poland.
| | - Anna Błażewicz
- Chair of Chemistry, Department of Analytical Chemistry, Medical University of Lublin, Poland
| | - Marzena Laskowska
- Chair and Department of Obstetrics and Perinatology, Medical University of Lublin, Poland
| | - Przemysław Niziński
- Chair of Chemistry, Department of Analytical Chemistry, Medical University of Lublin, Poland
| | | | - Łukasz Komsta
- Department of Medicinal Chemistry, Faculty of Pharmacy with Division of Medical Analytics, Medical University of Lublin, Poland
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19
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Sun J, Teng D, Li C, Peng S, Mao J, Wang W, Xie X, Fan C, Li C, Meng T, Zhang S, Du J, Gao Z, Shan Z, Teng W. Association between iodine intake and thyroid autoantibodies: a cross-sectional study of 7073 early pregnant women in an iodine-adequate region. J Endocrinol Invest 2020; 43:43-51. [PMID: 31264141 DOI: 10.1007/s40618-019-01070-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 06/04/2019] [Indexed: 12/13/2022]
Abstract
PURPOSE The association between iodine intake and thyroid autoimmunity has been debated, especially in pregnant women. This study aimed to investigate thyroid autoantibodies and their association with iodine intake and hypothyroidism in early pregnancy. METHODS 7073 early pregnant women from an iodine-sufficient region participated in this study. Urinary iodine concentrations (UICs) were measured using an ammonium persulfate method. Serum thyroid peroxidase antibody (TPOAb), thyroglobulin antibody (TgAb), thyroid-stimulating hormone (TSH), free thyroxine (FT4), and Tg were determined using an electrochemiluminescence immunoassay. RESULTS Iodine deficiency (UIC < 100 μg/L) was associated with higher risks of TPOAb positivity [adjusted odds ratio (aOR) = 1.64, 95% confidence interval [CI] (1.29-2.08)] and TgAb positivity [aOR = 1.44, 95% CI (1.16-1.80)]. Women with isolated TPOAb positivity, isolated TgAb positivity, or both TPOAb and TgAb positivity had a 14.64-fold, 7.83-fold, and 44.69-fold increased risk of overt hypothyroidism, and a 4.36-fold, 2.86-fold, and 6.26-fold increased risk of subclinical hypothyroidism, respectively. Moreover, the risks of overt and subclinical hypothyroidism in women with a high TPOAb titer were 16.99 and 4.80 times that in TPOAb-negative women, respectively. The risk of overt hypothyroidism in women with a high TgAb titer was 6.97 times that in TgAb-negative women. CONCLUSIONS Our work demonstrates that iodine deficiency during early pregnancy is an independent risk factor for both TPOAb positivity and TgAb positivity. Furthermore, positivity for both autoantibodies and a high thyroid autoantibody titer are associated with significantly higher risks of overt and subclinical hypothyroidism.
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Affiliation(s)
- J Sun
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - D Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - C Li
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - S Peng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - J Mao
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - W Wang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - X Xie
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - C Fan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China
| | - C Li
- Department of Obstetrics and Gynecology, Shenyang Fifth People's Hospital, Shenyang, 110023, China
| | - T Meng
- Department of Obstetrics and Gynecology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - S Zhang
- Department of Endocrinology, No. 202 Hospital of People's Liberation Army, Shenyang, 110003, China
| | - J Du
- Department of Endocrinology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116044, China
| | - Z Gao
- Department of Endocrinology, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian, 116033, China
| | - Z Shan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
| | - W Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, China.
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Priliani L, Prado EL, Restuadi R, Waturangi DE, Shankar AH, Malik SG. Maternal Multiple Micronutrient Supplementation Stabilizes Mitochondrial DNA Copy Number in Pregnant Women in Lombok, Indonesia. J Nutr 2019; 149:1309-1316. [PMID: 31177276 PMCID: PMC6686057 DOI: 10.1093/jn/nxz064] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/11/2019] [Accepted: 03/15/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The Supplementation with Multiple Micronutrients Intervention Trial (SUMMIT) in Lombok, Indonesia showed that maternal multiple micronutrients (MMN), as compared with iron and folic acid (IFA), reduced fetal loss, early infant mortality, and low birth weight. Mitochondria play a key role during pregnancy by providing maternal metabolic energy for fetal development, but the effects of maternal supplementation during pregnancy on mitochondria are not fully understood. OBJECTIVE The aim of this study was to assess the impact of MMN supplementation on maternal mitochondrial DNA copy number (mtDNA-CN). METHODS We used archived venous blood specimens from pregnant women enrolled in the SUMMIT study. SUMMIT was a cluster-randomized double-blind controlled trial in which midwives were randomly assigned to distribute MMN or IFA to pregnant women. In this study, we selected 108 sets of paired baseline and postsupplementation samples (MMN = 54 and IFA = 54). Maternal mtDNA-CN was determined by real-time quantitative polymerase chain reaction in baseline and postsupplementation specimens. The association between supplementation type and change in mtDNA-CN was performed using rank-based estimation for linear models. RESULTS In both groups, maternal mtDNA-CN at postsupplementation was significantly elevated compared with baseline (P < 0.001). The regression revealed that the MMN group had lower postsupplementation mtDNA-CN than the IFA group (β = -4.63, P = 0.003), especially for women with mtDNA-CN levels above the median at baseline (β = -7.49, P = 0.007). This effect was rapid, and observed within 33 d of initiation of supplementation (β = -7.39, P = 0.017). CONCLUSION Maternal MMN supplementation rapidly stabilized mtDNA-CN in pregnant women who participated in SUMMIT, indicating improved mitochondrial efficiency. The data provide a mechanistic basis for the beneficial effects of MMN on fetal growth and survival, and support the transition from routine IFA to MMN supplementation.This trial was registered at www.isrctn.com as ISRCTN34151616.
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Affiliation(s)
- Lidwina Priliani
- Eijkman Institute for Molecular Biology, Ministry of Research, Technology and Higher Education and,Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
| | - Elizabeth L Prado
- Summit Institute of Development, Mataram, West Nusa Tenggara, Indonesia,Department of Nutrition, University of California at Davis, Davis, CA
| | - Restuadi Restuadi
- Eijkman Institute for Molecular Biology, Ministry of Research, Technology and Higher Education and,Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia
| | - Diana E Waturangi
- Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
| | - Anuraj H Shankar
- Summit Institute of Development, Mataram, West Nusa Tenggara, Indonesia,Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA,Address correspondence to AHS (e-mail: )
| | - Safarina G Malik
- Eijkman Institute for Molecular Biology, Ministry of Research, Technology and Higher Education and,Address correspondence to SGM (e-mail: )
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21
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Businge CB, Madini N, Longo-Mbenza B, Kengne AP. Insufficient iodine nutrition status and the risk of pre-eclampsia: a protocol for systematic review and meta-analysis. BMJ Open 2019; 9:e025573. [PMID: 31129578 PMCID: PMC6538048 DOI: 10.1136/bmjopen-2018-025573] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Pre-eclampsia is one of the leading causes of maternal and perinatal morbidity and mortality worldwide. Although subclinical hypothyroidism (SCH) in pregnancy is one of the established risk factors for pre-eclampsia, the link between iodine deficiency, the main cause of hypothyroidism and pre-eclampsia remains uncertain. About two billion people live in areas with iodine insufficiency. The increased renal blood flow during pregnancy leading to increased renal iodine clearance together with the increased placental transfer of iodine to the fetus leads to further iodine deficiency in pregnancy. Iodine is one of the most potent exogenous antioxidants whose deficiency is associated with oxidant imbalance and endothelial dysfunction, one of the mechanisms associated with increased risk of pre-eclampsia. METHODS AND ANALYSIS A systematic search of published literature will be conducted for case-control studies that directly determined the iodine nutrition status of women with pre-eclampsia and appropriate normotensive controls. A similar search will be conducted for cohort studies in which the incidence of pre-eclampsia among pregnant women with adequate and inadequate iodine nutrition status was reported. Databases including MEDLINE, EMBASE, Google Scholar, SCOPUS and Africa Wide Information will be searched up to 31 December 2018. Screening of identified articles and data extraction will be conducted independently by two investigators. Risk of bias of the included studies will be assessed using a Newcastle-Ottawa Scale. Appropriate meta-analytic techniques will be used to pool prevalence and incidence rates, odds and relative risk of pre-eclampsia from studies with similar features, overall and by geographical regions. Heterogeneity of the estimates across studies will be assessed and quantified and publication bias investigated. This protocol is reported according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis protocols (PRISMA-P) 2015 guidelines. ETHICS AND DISSEMINATION Since the proposed study will use published data, there is no requirement for ethical approval. This review seeks to identify the risk of pre-eclampsia associated with insufficient iodine nutrition in pregnancy. This will help to ascertain whether insufficient iodine intake may be an independent risk factor for pre-eclampsia. This will advise policy makers on the possibility of maximising iodine nutrition in pregnancy and reproductive age as one of the remedies for prevention of pre-eclampsia among populations at risk of inadequate iodine intake. This review is part of the thesis that will be submitted for the award of a PhD in Medicine to the Faculty of Health Sciences of the University of Cape Town. In addition the results will be published in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER CRD42018099427.
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Affiliation(s)
- Charles Bitamazire Businge
- Department of Medicine, University of Cape Town, Cape Town, Western Cape, South Africa
- Department of Obstetrics and Gynaecology, Walter Sisulu University Faculty of Health Sciences, Mthatha, Eastern Cape, South Africa
| | - Namhla Madini
- Health Sciences Library, University of Cape Town Faculty of Health Sciences, Cape Town, Western Cape, South Africa
| | - Benjamin Longo-Mbenza
- Universite de Kinshasa Faculte de Medecine, Kinshasa, The Democratic Republic of the Congo
- LOMO Medical Centre, Kinshasa, The Democratic Republic of the Congo
| | - A P Kengne
- Non-Communicable Disease Research Unit, South African Medical Research Council, Tygerberg, South Africa
- Department of Medicine, University of Cape Town Faculty of Health Sciences, Cape Town, Western Cape, South Africa
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22
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la Peña Sol D, Isela SR, Zendy OV, Mónica NM, Irene XR, Omar AH. Changes in trophoblasts gene expression in response to perchlorate exposition. Toxicol In Vitro 2018; 50:328-335. [PMID: 29673971 DOI: 10.1016/j.tiv.2018.04.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 03/19/2018] [Accepted: 04/12/2018] [Indexed: 10/17/2022]
Abstract
Contaminated water with chlorates is a public health problem associated with iodine deficiency. Epidemiological evidence shows that iodine deficiency is a risk factor for preeclampsia (PE). In this study we use human BeWo trophoblast cells exposed to perchlorate (KClO4) and changes in gene expression were analyzed by microarrays, quantitative RT-PCR (qRT-PCR) and immunoblot. The microarray analysis identified 48 transcripts up-regulated and 112 down-regulated in comparison with non-exposed trophoblast. The qRT-PCR analysis confirmed changes in GAS7, PKP2, Emilin, Dynatic 3, protocadherins 11, 15, gamma A12, EGFR, SAFB1, ACE2, ANXA2, Apoliprotein E, SREBF1, and C/EBP-β. KClO4 exposition decreased the mRNA and protein of C/EBP-β and GPX4. Also, we observed a nuclear translocation of HIF1α protein, and increase in both Snail and ACE2 protein by immunoblot. These effects were accompanied by an increases in ROS and nitric oxide. In conclusion, our results show that exposure to KClO4 alters genes involved in migration, adhesion, differentiation, and correlate with the increase of oxidative stress and nitric oxide production in trophoblast cells. It is possible that iodine deficiency is associated with these processes. However, further studies are required to corroborate the role of iodine in trophoblast cells.
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Affiliation(s)
- De la Peña Sol
- Laboratorio de Investigación Clínica, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas S/N Ciudad Universitaria Sur, col. La Haciendita, Chilpancingo, Guerrero ZC 39087, Mexico
| | - Santiago-Roque Isela
- Facultad de Bioanálisis, Universidad Veracruzana. Odontólogos W/N, U.H. del Bosque, Xalapa, Veracruz, Mexico
| | - Olivo-Vidal Zendy
- Ecology and Health Laboratory, Public Health Institute, Universidad Veracruzana, Av. Luís Castelazo Ayala W/N, Col. Industrial Animas, Xalapa, Veracruz ZC 41190, Mexico
| | - Navarro-Meza Mónica
- Centro Universitario del Sur., Av. Enrique Arreola Silva no. 883, Col. Centro, Ciudad Guzmán, Jalisco ZC 49000, Mexico
| | - Xochihua-Rosas Irene
- Facultad de Idiomas, Universidad Veracruzana, Francisco Moreno esq. E. Alatriste S/N, col. Ferrer Guardia, Xalapa, Veracruz ZC91020, Mexico
| | - Arroyo-Helguera Omar
- Ecology and Health Laboratory, Public Health Institute, Universidad Veracruzana, Av. Luís Castelazo Ayala W/N, Col. Industrial Animas, Xalapa, Veracruz ZC 41190, Mexico.
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23
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Qin F, Pan X, Yang J, Li S, Shao L, Zhang X, Liu B, Li J. Dietary Iodine Affected the GSH-Px to Regulate the Thyroid Hormones in Thyroid Gland of Rex Rabbits. Biol Trace Elem Res 2018; 181:251-257. [PMID: 28577235 DOI: 10.1007/s12011-017-1064-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 05/23/2017] [Indexed: 12/17/2022]
Abstract
Iodine (I) is an essential trace element that can influence animal health and productivity. In this study, we investigated the effects of dietary iodine on the antioxidant indices of organ (liver and thyroid gland) and messenger RNA (mRNA) expression of glutathione peroxidase (GSH-Px) in Rex rabbits. A total of 120 4-month-old Rex rabbits (2235.4 ± 13.04 g BW) were divided into four equal groups, and their diets were supplemented with iodine (0, 0.2, 2, or 4 mg/kg dry matter (DM)). The iodine concentration in basal diet (control group) was 0.36 mg/kg DM. In most of measured parameters, supplemental iodine exerted no significant effect. Growth and slaughter performance and organ weight were not influenced significantly by iodine supplementation. Serum T3 was significantly lower in 2-mg I group than in 0.2 and 4-mg I groups (P < 0.05). Superoxide dismutase (SOD), GSH-Px, methane dicarboxylic aldehyde (MDA), and thyroperoxidase (TPO) in the serum and liver were not influenced (P > 0.05). Conversely, serum catalase (CAT) was significantly reduced (P < 0.05). In the thyroid, GSH-Px was higher in the 2-mg I group than in the 0.2- and 4-mg I groups (P < 0.05). RT-PCR results showed that the mRNA expression level of GSH-Px in the liver was not significantly influenced (P > 0.05). In the thyroid gland, the mRNA expression level of GSH-Px was higher in the 2-mg I group than in the 4-mg I group (P < 0.05), which agreed with the activity of GSH-Px. In conclusion, iodine supplementation exerted no effect on the performance and antioxidant capacity of the body, but dietary iodine influenced serum T3 or GSH-Px in the thyroid gland. Thus, on the basis of serum T3 and GSH-Px levels in the thyroid gland, we hypothesized that GSH-Px secretion was increased by adding dietary iodine in the thyroid, which may inhibit the H2O2 generation and further influence the thyroid hormone synthesis.
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Affiliation(s)
- Feng Qin
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
| | - Xiaoqing Pan
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
| | - Jie Yang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China.
| | - Sheng Li
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
| | - Le Shao
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
| | - Xia Zhang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
| | - Beiyi Liu
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
| | - Jian Li
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
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Chen C, Xu H, Chen Y, Chen Y, Li Q, Hu J, Liang W, Cheng J, Xia F, Wang C, Han B, Zheng Y, Jiang B, Wang N, Lu Y. Iodized Salt Intake and Its Association with Urinary Iodine, Thyroid Peroxidase Antibodies, and Thyroglobulin Antibodies Among Urban Chinese. Thyroid 2017; 27:1566-1573. [PMID: 29092685 DOI: 10.1089/thy.2017.0385] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Whether iodized salt increases the risk of thyroid disease has been strongly debated in China, especially in the urban areas of coastal regions, in recent years. This study aimed to investigate the status of iodized salt in terms of urinary and serum iodine concentration in urban coastal areas, and to explore further whether consumption of iodized salt or non-iodized salt is associated with autoimmune thyroid disease (AITD). METHODS The data source was SPECT-China, a cross-sectional study in East China. A total of 1678 subjects were enrolled from 12 communities in downtown Shanghai. The type of salt consumed, the urinary iodine concentration (UIC), serum iodine, thyroid peroxidase antibodies (TPOAb), and thyroglobulin antibodies (TgAb) levels were obtained. AITD was defined as serum TPOAb and/or TgAb >60 kIU/L (TPO/TgAb [+]). RESULTS The prevalence of AITD was 10.5% in men and 21.4% in women. The median UIC and serum iodine concentration were 106.4 μg/L and 60.9 μg/L, respectively. Among all the subjects, 46.4% consumed non-iodized salt; the prevalence of iodine deficiency among those subjects was significantly higher than that of the subjects who consumed iodized salt (54.2% vs. 40.1%; p < 0.001). Consumption of non-iodized salt was positively associated with AITD in all participants (odds ratio [OR] = 1.49 [confidence interval (CI) 1.15-1.95]; p = 0.003) and in women (OR = 1.63 [CI 1.20-2.21]; p < 0.01) after multivariable adjustment. Additionally, the association between low UIC and AITD was observed among all subjects (OR = 1.50 [CI 1.10-2.05]; p = 0.01) and in women (OR = 1.45 [CI 1.02-2.07]; p = 0.038). CONCLUSIONS In coastal areas, which are believed to be rich in iodine, consuming non-iodized salt still led to lower UIC levels and a higher prevalence of iodine deficiency. The consumption of non-iodized salt and low UICs might be a risk factor for AITD, especially for women, which should be further confirmed by longitudinal studies.
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Affiliation(s)
- Chi Chen
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Hao Xu
- 2 Shanghai Changning Center for Disease Control and Prevention , Shanghai, China
| | - Yi Chen
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Yingchao Chen
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Qin Li
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Jie Hu
- 2 Shanghai Changning Center for Disease Control and Prevention , Shanghai, China
| | - Weijiu Liang
- 2 Shanghai Changning Center for Disease Control and Prevention , Shanghai, China
| | - Jing Cheng
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Fangzhen Xia
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Chiyu Wang
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Bing Han
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Yanjun Zheng
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Boren Jiang
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Ningjian Wang
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
| | - Yingli Lu
- 1 Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai, China
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Kurku H, Gencer A, Pirgon O, Buyukinan M, Aslan N. Increased oxidative stress parameters in children with moderate iodine deficiency. J Pediatr Endocrinol Metab 2016; 29:1159-1164. [PMID: 27710914 DOI: 10.1515/jpem-2016-0077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 08/29/2016] [Indexed: 01/25/2023]
Abstract
BACKGROUND Iodine is a part of thyroid hormones and has been reported to act directly as an antioxidant or induce indirectly antioxidant enzymes. This study aimed to assess the urinary iodine concentration and its relationship between the antioxidant and oxidative stress capacity in healthy school-aged children. METHODS In total, 196 students from five primary schools, randomly selected between 9 and 12 years (mean age: 10.2±1.2 years), were enrolled in the study. Urinary iodine levels were measured by spectrophotometry with the Sandell-Kolthoff reaction. Total antioxidant status (TAS) and total oxidant status (TOS) were analysed from urine samples. The ratio of TOS to TAS was regarded as an oxidative stress index (OSI), an indicator of the degree of oxidative status. RESULTS Fifty-four percentage (107) of the children had iodine deficiency (ID) and the majority of them (30%) had mild ID. There was no severe-ID child in the population (<20 μg/L). Urine TAS levels were significantly lower in the moderate-ID group than in the mild-ID group (6.5±4.1 vs. 11.3±4.1 mmol, p<0.001) and the iodine-sufficient group (11.0±5.3 μmol, p<0.001). TOS levels and OSI were found higher in the moderate-ID group than in the mild-ID group (4.8±2.1 vs. 3.7±2.1 μmol, p<0.001) and the iodine-sufficient group (4.8±2.1 vs. 3.4±2.5 mmol, p<0.001). In the moderate-ID group, low urine iodine levels exhibited significant negative correlations with OSI (r=-0.660) and TOS (r=-0.248) and a positive correlation with TAS (r=0.475). CONCLUSIONS We found that children with moderate ID were exposed to more oxidative burden than children with mild ID or iodine sufficiency. Increased systemic oxidative stress induced by moderate ID could cause development of ID-related complications and diseases. Iodine supplementation could have a beneficial role in the prevention of oxidative stress.
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Olivo-Vidal ZE, Rodríguez RC, Arroyo-Helguera O. Iodine Affects Differentiation and Migration Process in Trophoblastic Cells. Biol Trace Elem Res 2016; 169:180-8. [PMID: 26152853 DOI: 10.1007/s12011-015-0433-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/30/2015] [Indexed: 01/22/2023]
Abstract
Iodine deficiency is associated with oxidative stress increase and preeclampsia during gestation, suggesting that iodine concentration plays an important role in the normal placenta physiology. The question raised is to analyze the effect of iodine deficiency on oxidative stress, viability, differentiation, and migration process and changes in the expression of differentiation and migration markers. Iodine deprivation was done using potassium perchlorate (KCLO4) to block sodium iodide symporter (NIS) transporter and 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid DIDS to inhibit pendrine (PEN) transport for 3-48 h. Then trophoblast cells were treated with low iodine doses of 5-500 μM and high iodine doses of 100-5000 μM. Oxidative stress, viability, and human chorionic gonadotropin (hGC) were measured by colorimetric methods. Migration throphoblast cells were evaluated by both wound healing and Boyden chamber assays. Changes in mRNA expression were analyzed by real-time RT-PCR. Iodine deprivation induces a significant increase of reactive oxygen species (ROS), viability, and migration process vs control cells. We found a significant overregulation in the mRNA's peroxisome proliferator-activated receptor (PPAR-gamma), Snail, and matrix metalloproteinase-9 (MMP-9) mRNA's in cells deprived of iodine, as well as a down glial cell missing-1 (GCM-1) regulation, hGC, pregnancy-associated plasma protein-A (PAPP-A), and E-cadherin mRNA expression. The expression of hypoxic induction factor alpha (HIFα) mRNA does not change with iodine deprivation. In cells deprived of iodine, supplementing low iodine doses (5-500 μM) does not induce any significant changes in viability. However, ROS and migration process were decreased, although we found an increased human chorionic gonadotropin (hCG) secretion as a differentiation marker. In addition, we found that PPAR-gamma, Snail, and MPP-9 mRNAs expression are downregulated with low iodine doses, in contrast with GCM-1, PAPP-A, hGC, and E-cadherin that increase their expression vs cells deprived of iodine. High iodine doses (1000-5000 μM) have shown cytotoxic effects. Based on our results, iodine is important for keeping the proliferation/differentiation balance in the placenta.
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Affiliation(s)
- Zendy Evelyn Olivo-Vidal
- Centro de investigaciones Biomédicas, Universidad Veracruzana, Av. Luís Castelazo Ayala S/N, Col. Industrial Ánimas, Xalapa, Veracruz, México
- Instituto de Salud Pública, Universidad Veracruzana, Av. Luís Castelazo Ayala S/N, Col. Industrial Ánimas, Xalapa, Veracruz, México
| | - Roció Coutiño Rodríguez
- Instituto de Salud Pública, Universidad Veracruzana, Av. Luís Castelazo Ayala S/N, Col. Industrial Ánimas, Xalapa, Veracruz, México
| | - Omar Arroyo-Helguera
- Instituto de Salud Pública, Universidad Veracruzana, Av. Luís Castelazo Ayala S/N, Col. Industrial Ánimas, Xalapa, Veracruz, México.
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Yilmaz S, Ozgu-Erdinc AS, Demirtas C, Ozturk G, Erkaya S, Uygur D. The oxidative stress index increases among patients with hyperemesis gravidarum but not in normal pregnancies. Redox Rep 2014; 20:97-102. [PMID: 25327635 DOI: 10.1179/1351000214y.0000000110] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE The etiology and pathogenesis of hyperemesis gravidarum (HG) is still undetermined and has been suggested to involve oxidative stress. We aimed to evaluate the status of oxidative stress in HG by measuring the levels of total oxidant status (TOS), total antioxidant status (TAS), and by calculating the oxidative stress index (OSI). METHODS In a case-control trial, fasting morning blood samples of patients with HG (n = 41) and healthy pregnant women (n = 39) were collected for analysis of serum TOS and TAS values as well as for calculation of OSI according to the formula: OSI = TOS / TAS × 100. RESULTS Serum TOS and TAS levels were similar in both groups. However, serum TAS levels were lower among HG patients compared to controls, which resulted in an increase in OSI (P = 0.025). DISCUSSION The present study supports the role of systemic oxidative stress, reflected by an imbalance between the TOS and TAS, in patients with HG. Our findings distinguish the mechanism underlying oxidative stress to result from reduction of antioxidants rather than an increase in oxidants.
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