1
|
Bath SC. Thyroid function and iodine intake: global recommendations and relevant dietary trends. Nat Rev Endocrinol 2024; 20:474-486. [PMID: 38693274 DOI: 10.1038/s41574-024-00983-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/20/2024] [Indexed: 05/03/2024]
Abstract
Iodine is a micronutrient that is essential for thyroid hormone production. Adequate iodine intake is especially important during pregnancy and early life, when brain development is dependent on thyroid hormones. Iodine intake recommendations vary around the world, but most recommendations generally reflect the increased requirements during pregnancy and lactation, although adequate iodine intake before pregnancy is also important. Tremendous progress has been made in improving iodine intake across the world over the past 30 years, mainly through salt-iodization programmes. However, in countries without strong iodine fortification programmes, and with shifts in dietary patterns, a need has arisen for health organizations, governments and clinicians to ensure that adequate iodine is consumed by everyone in the population. For example, in countries in which adequate iodine intake depends on individual food choice, particularly of iodine-rich milk and dairy products, intake can be highly variable and is also vulnerable to changing dietary patterns. In this Review, iodine is considered in the wider context of the increasing prevalence of overweight and obesity, the dietary trends for salt restriction for cardiovascular health and the increasing uptake of plant-based diets.
Collapse
Affiliation(s)
- Sarah C Bath
- Department of Nutrition, Food and Exercise Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK.
| |
Collapse
|
2
|
Kryczyk-Kozioł J, Moniak P, Zagrodzki P, Lauterbach R, Huras H, Staśkiewicz M, Krośniak M, Paśko P, Podsiadły R, Dobrowolska-Iwanek J. The Assessment of Iodine Concentrations in Colostrum and Breast Milk Using ICP-MS: The Impact of Delivery Type, Thyroid Function and Gestational Diabetes-A Pilot Study. Foods 2024; 13:2241. [PMID: 39063324 PMCID: PMC11275260 DOI: 10.3390/foods13142241] [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: 06/13/2024] [Revised: 07/09/2024] [Accepted: 07/13/2024] [Indexed: 07/28/2024] Open
Abstract
Considering the spectrum of benefits of breast milk feeding, determining the essential components of an infant's only food-mother's milk-seems justified, especially in the case of those whose deficiency (e.g., iodine) may result in developmental disorders. The main aim of this study was the determination of the total iodine content of breast milk (including colostrum and mature milk). A secondary objective was to assess the influence of factors such as the type of delivery, hypothyroidism, gestational diabetes or the stage of lactation on this parameter. The study materials were colostrum and milk after 1 (n = 14), 2 and 3 months (n = 8) of lactation with a range of iodine concentrations (µg/L): 195-1648 and 170-842, 174-650 and 273-751, respectively. Iodine was determined using the inductively coupled plasma mass spectrometry (ICP-MS). Multivariate statistical analysis revealed, e.g., that delivery by caesarean section or dose of L-thyroxine taken by women to normalise thyroid hormones, had a significant effect on iodine concentrations in breast milk. Further research aimed at assessing the quality of breast milk should also include determining the factors influencing it.
Collapse
Affiliation(s)
- Jadwiga Kryczyk-Kozioł
- Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (J.K.-K.); (P.M.); (P.Z.); (P.P.)
| | - Paulina Moniak
- Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (J.K.-K.); (P.M.); (P.Z.); (P.P.)
| | - Paweł Zagrodzki
- Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (J.K.-K.); (P.M.); (P.Z.); (P.P.)
| | - Ryszard Lauterbach
- Department of Neonatology, Jagiellonian University Hospital, Kopernika 23, 31-501 Kraków, Poland;
| | - Hubert Huras
- Department of Obstetrics and Perinatology, Jagiellonian University Hospital, Kopernika 23, 31-501 Kraków, Poland; (H.H.); (M.S.)
| | - Magdalena Staśkiewicz
- Department of Obstetrics and Perinatology, Jagiellonian University Hospital, Kopernika 23, 31-501 Kraków, Poland; (H.H.); (M.S.)
| | - Mirosław Krośniak
- Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (J.K.-K.); (P.M.); (P.Z.); (P.P.)
| | - Paweł Paśko
- Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (J.K.-K.); (P.M.); (P.Z.); (P.P.)
| | - Robert Podsiadły
- Institute of Physics, Faculty of Natural Sciences, Jan Kochanowski University, Uniwersytecka 7, 25-406 Kielce, Poland;
| | - Justyna Dobrowolska-Iwanek
- Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (J.K.-K.); (P.M.); (P.Z.); (P.P.)
| |
Collapse
|
3
|
Nyarko MJ, Ten Ham-Baloyi W, van Rooyen DRM. Qualitative Exploration of Health Professionals' Perceptions of Addressing Malnutrition Within the First 1,000 Days. JOURNAL OF NUTRITION EDUCATION AND BEHAVIOR 2024; 56:442-451. [PMID: 38639691 DOI: 10.1016/j.jneb.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 03/12/2024] [Accepted: 03/12/2024] [Indexed: 04/20/2024]
Abstract
OBJECTIVE Explore health professionals' perceptions toward how to address malnutrition within the first 1,000 days of life in underresourced communities. DESIGN A qualitative explorative-descriptive study using 8 face-to-face focus group discussions. SETTING Health facilities serving underresourced communities within Nelson Mandela Bay, Eastern Cape Province, South Africa. PARTICIPANTS Fifty-six health professionals (n = 13 doctors, n = 28 nurses, n = 6 dietitians, and n = 9 social workers) aged between 20 and 60 years, with 1-16 years (5 years average) of working experience. The majority (n = 53; 94.6%) were women. PHENOMENON OF INTEREST Health professionals' perceptions of effective methods or strategies to address malnutrition are referred to as undernutrition. ANALYSIS Content analysis. RESULTS Health professionals perceived socioeconomic conditions; caregiver lack of nutrition knowledge; and behavioral, cultural, and generational infant feeding practices as contributing factors to malnutrition. Participants recommended efforts to strengthen the availability, accessibility, and utilization of contraception, especially for teenagers, increase support to caretakers of children from families, health facilities, and communities, and a multisector and multidisciplinary approach to improve social determinants of health in underresourced communities. CONCLUSIONS AND IMPLICATIONS To address malnutrition within the first 1,000 days of life, data supports that health professionals in underresourced communities require a multisector, multidisciplinary approach. This approach entails educational interventions, peer mentoring and community empowerment through support to and involvement of caregivers of children.
Collapse
Affiliation(s)
- Marian Joyce Nyarko
- Department of Nursing Science, Nelson Mandela University, Gqeberha, South Africa
| | - Wilma Ten Ham-Baloyi
- Department of Nursing Science, Nelson Mandela University, Gqeberha, South Africa.
| | | |
Collapse
|
4
|
Zemariam AB, Adisu MA, Habesse AA, Abate BB, Bizuayehu MA, Wondie WT, Alamaw AW, Ngusie HS. Employing advanced supervised machine learning approaches for predicting micronutrient intake status among children aged 6-23 months in Ethiopia. Front Nutr 2024; 11:1397399. [PMID: 38919392 PMCID: PMC11198118 DOI: 10.3389/fnut.2024.1397399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 05/22/2024] [Indexed: 06/27/2024] Open
Abstract
Background Although micronutrients (MNs) are important for children's growth and development, their intake has not received enough attention. MN deficiency is a significant public health problem, especially in developing countries like Ethiopia. However, there is a lack of empirical evidence using advanced statistical methods, such as machine learning. Therefore, this study aimed to use advanced supervised algorithms to predict the micronutrient intake status in Ethiopian children aged 6-23 months. Methods A total weighted of 2,499 children aged 6-23 months from the Ethiopia Demographic and Health Survey 2016 data set were utilized. The data underwent preprocessing, with 80% of the observations used for training and 20% for testing the model. Twelve machine learning algorithms were employed. To select best predictive model, their performance was assessed using different evaluation metrics in Python software. The Boruta algorithm was used to select the most relevant features. Besides, seven data balancing techniques and three hyper parameter tuning methods were employed. To determine the association between independent and targeted feature, association rule mining was conducted using the a priori algorithm in R software. Results According to the 2016 Ethiopia Demographic and Health Survey, out of 2,499 weighted children aged 12-23 months, 1,728 (69.15%) had MN intake. The random forest, catboost, and light gradient boosting algorithm outperformed in predicting MN intake status among all selected classifiers. Region, wealth index, place of delivery, mothers' occupation, child age, fathers' educational status, desire for more children, access to media exposure, religion, residence, and antenatal care (ANC) follow-up were the top attributes to predict MN intake. Association rule mining was identified the top seven best rules that most frequently associated with MN intake among children aged 6-23 months in Ethiopia. Conclusion The random forest, catboost, and light gradient boosting algorithm achieved a highest performance and identifying the relevant predictors of MN intake. Therefore, policymakers and healthcare providers can develop targeted interventions to enhance the uptake of micronutrient supplementation among children. Customizing strategies based on identified association rules has the potential to improve child health outcomes and decrease the impact of micronutrient deficiencies in Ethiopia.
Collapse
Affiliation(s)
- Alemu Birara Zemariam
- Department of Pediatrics and Child Health Nursing, School of Nursing, College of Medicine and Health Science, Woldia University, Woldia, Ethiopia
| | - Molalign Aligaz Adisu
- Department of Pediatrics and Child Health Nursing, School of Nursing, College of Medicine and Health Science, Woldia University, Woldia, Ethiopia
| | - Aklilu Abera Habesse
- Department of Pediatrics and Child Health Nursing, School of Nursing, College of Medicine and Health Science, Woldia University, Woldia, Ethiopia
| | - Biruk Beletew Abate
- Department of Pediatrics and Child Health Nursing, School of Nursing, College of Medicine and Health Science, Woldia University, Woldia, Ethiopia
| | - Molla Azmeraw Bizuayehu
- Department of Pediatrics and Child Health Nursing, School of Nursing, College of Medicine and Health Science, Woldia University, Woldia, Ethiopia
| | - Wubet Tazeb Wondie
- Department of Pediatrics and Child Health Nursing, School of Nursing, College of Medicine and Health Science, Ambo University, Ambo, Ethiopia
| | - Addis Wondmagegn Alamaw
- Department of Emergency and Critical Care Nursing, School of Nursing, College of Medicine and Health Science, Woldia University, Woldia, Ethiopia
| | - Habtamu Setegn Ngusie
- Department of Health Informatics, School of Public Health, College of Medicine and Health Science, Woldia University, Woldia, Ethiopia
| |
Collapse
|
5
|
Abel MH, Totland TH, Holvik K, Brantsæter AL, Krokstad S, Åsvold BO, Meyer HE. Iodine status and determinants in adults in Norway - results from a population-based health examination survey (The HUNT Study). Food Nutr Res 2024; 68:9761. [PMID: 38571917 PMCID: PMC10989228 DOI: 10.29219/fnr.v68.9761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 01/23/2024] [Accepted: 02/16/2024] [Indexed: 04/05/2024] Open
Abstract
Background In Norway, there is a lack of knowledge about the iodine status in the general and older adult population, and there is no established national monitoring programme for iodine. Several studies have indicated that iodine deficiency is prevalent in subgroups of the population. Salt iodisation is currently being considered as a measure to increase the population iodine status. In this cross-sectional study, the aim was to evaluate iodine status and determinants in the adult and older adult population in Mid-Norway, before salt iodisation is likely to be initiated. Methods The study sample was a subsample of participants in the fourth wave of the population-based Trøndelag Health Study (HUNT4, 2017-2019) with available spot-urine samples. This subsample included participants with 25-64 years (n = 500) and 70-79 years (n = 250). The urine samples were analysed for iodine and creatinine. Information on the habitual intake of milk/yoghurt, fish, supplement use, use of thyroid medication and relevant background factors was collected through a general questionnaire. Multivariable quantile regression was used to model differences in the median urinary iodine concentration (UIC) by determinants. Estimates were weighted to match the age and sex distribution of the Norwegian population aged 25-79 years in 2019. Results Median UIC was 97 µg/L (95% confidence interval [CI]: 92, 103) indicating borderline iodine deficiency at a group level. The median UIC increased with age, and iodine status was insufficient in participants below age 55 years (median 92 µg/L [95% CI: 85, 99]). Important determinants of UIC were habitual milk/yoghurt intake, daily supplement use and current use of thyroid medication, but not intake of lean or fatty fish. Risk of mild-to-moderate iodine deficiency was seen in those with a low intake of milk/yoghurt, no supplement use and who did not use thyroid medication. No group was identified as being at risk of iodine excess. Conclusion Iodine status was adequate in older adults but mildly deficient in adults under 55 years. Milk intake, supplement use and use of thyroid medication are important determinants of iodine intake in Norway.
Collapse
Affiliation(s)
- Marianne Hope Abel
- Department of Physical Health and Ageing, Norwegian Institute of Public Health, Oslo, Norway
| | - Torunn Holm Totland
- Department of Physical Health and Ageing, Norwegian Institute of Public Health, Oslo, Norway
| | - Kristin Holvik
- Department of Physical Health and Ageing, Norwegian Institute of Public Health, Oslo, Norway
| | | | - Steinar Krokstad
- HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, NTNU, Norwegian University of Science and Technology, NTNU, Levanger, Norway
- Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway
| | - Bjørn Olav Åsvold
- HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, NTNU, Norwegian University of Science and Technology, NTNU, Levanger, Norway
- K.G. Jebsen Center for Genetic Epidemiology, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Endocrinology, Clinic of Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Haakon E. Meyer
- Department of Physical Health and Ageing, Norwegian Institute of Public Health, Oslo, Norway
- Department of Community Medicine and Global Health, Institute of Health and Society, University of Oslo, Oslo, Norway
| |
Collapse
|
6
|
Leonard UM, Leydon CL, Arranz E, Kiely ME. Impact of consuming an environmentally protective diet on micronutrients: a systematic literature review. Am J Clin Nutr 2024; 119:927-948. [PMID: 38569787 DOI: 10.1016/j.ajcnut.2024.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND A global move toward consumption of diets from sustainable sources is required to protect planetary health. As this dietary transition will result in greater reliance on plant-based protein sources, the impact on micronutrient (MN) intakes and status is unknown. OBJECTIVE Evaluate the evidence of effects on intakes and status of selected MNs resulting from changes in dietary intakes to reduce environmental impact. Selected MNs of public health concern were vitamins A, D, and B12, folate, calcium, iron, iodine, and zinc. METHODS We systematically searched 7 databases from January 2011 to October 2022 and followed the PRISMA guidelines. Eligible studies had to report individual MN intake and/or status data collected in free-living individuals from the year 2000 onward and environmental outcomes. RESULTS From the 10,965 studies identified, 56 studies were included, mostly from high-income countries (n = 49). Iron (all 56) and iodine (n = 20) were the most and least reported MNs, respectively. There was one randomized controlled trial (RCT) that also provided the only biomarker data, 10 dietary intake studies, and 45 dietary modeling studies, including 29 diet optimization studies. Most studies sought to reduce greenhouse gas emissions or intake of animal-sourced foods. Most results suggested that intakes of zinc, calcium, iodine, and vitamins B12, A, and D would decrease, and total iron and folate would increase in a dietary transition to reduce environmental impacts. Risk of inadequate intakes of zinc, calcium, vitamins A, B12 and D were more likely to increase in the 10 studies that reported nutrient adequacy. Diet optimization (n = 29) demonstrated that meeting nutritional and environmental targets is technically feasible, although acceptability is not guaranteed. CONCLUSIONS Lower intakes and status of MNs of public health concern are a potential outcome of dietary changes to reduce environmental impacts. Adequate consideration of context and nutritional requirements is required to develop evidence-based recommendations. This study was registered prospectively with PROSPERO (CRD42021239713).
Collapse
Affiliation(s)
- Ursula M Leonard
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland
| | - Clarissa L Leydon
- Centre for Health and Diet Research, School of Public Health, University College Cork, Cork, Ireland; Department of Agrifood Business and Spatial Analysis, Teagasc Food Research Centre, Ashtown, Dublin, Ireland
| | - Elena Arranz
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland; Department of Nutrition and Food Science, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain
| | - Mairead E Kiely
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland.
| |
Collapse
|
7
|
Nicol K, Nugent AP, Woodside JV, Hart KH, Bath SC. Iodine and plant-based diets: a narrative review and calculation of iodine content. Br J Nutr 2024; 131:265-275. [PMID: 37622183 PMCID: PMC10751939 DOI: 10.1017/s0007114523001873] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 07/25/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
An increasing number of food-based recommendations promote a plant-based diet to address health concerns and environmental sustainability in global food systems. As the main sources of iodine in many countries are fish, eggs and dairy products, it is unclear whether plant-based diets, such as the EAT-Lancet reference diet, would provide sufficient iodine. This is important as iodine, through the thyroid hormones, is required for growth and brain development; adequate iodine intake is especially important before, and during, pregnancy. In this narrative review, we evaluated the current literature and estimated iodine provision from the EAT-Lancet reference diet. There is evidence that those following a strict plant-based diet, such as vegans, cannot reach the recommended iodine intake from food alone and are reliant on iodine supplements. Using the EAT-Lancet reference diet intake recommendations in combination with iodine values from UK food tables, we calculated that the diet would provide 128 μg/d (85 % of the adult recommendation of 150 μg/d and 51–64 % of the pregnancy recommendation of 200–250 μg/d). However, if milk is replaced with unfortified plant-based alternatives, total iodine provision would be just 54 μg/d (34 % and 22–27 % of the recommendations for adults and pregnancy, respectively). Plant-based dietary recommendations might place consumers at risk of iodine deficiency in countries without a fortification programme and where animal products provide the majority of iodine intake, such as the UK and Norway. It is essential that those following a predominantly plant-based diet are given appropriate dietary advice to ensure adequate iodine intake.
Collapse
Affiliation(s)
- Katie Nicol
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7XH, UK
| | - Anne P. Nugent
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Northern Ireland, UK
| | - Jayne V. Woodside
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Northern Ireland, UK
- Centre for Public Health, Queens University Belfast, Belfast, UK
| | - Kathryn H. Hart
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7XH, UK
| | - Sarah C. Bath
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7XH, UK
| |
Collapse
|
8
|
Visentin E, Niero G, De Marchi M. Assessment of energy dispersive X-ray fluorescence (ED-XRF) for quantification of iodine in non-lyophilized milk. Food Chem 2023; 429:136892. [PMID: 37478602 DOI: 10.1016/j.foodchem.2023.136892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/29/2023] [Accepted: 07/13/2023] [Indexed: 07/23/2023]
Abstract
Iodine represents a fundamental element for human health, with particular regard to thyroid function. Dietary intake of milk naturally rich in iodine becomes of primary importance in the prevention of syndromes related to iodine deficiency. The concentration of iodine in milk is characterized by wide variability, mainly related to animal feed and level of mineral supplementation. Therefore, there is interest in the development of fast analytical techniques which are able to predict milk iodine concentration. The aim of the present study was to investigate the effectiveness of energy-dispersive X-ray fluorescence (ED-XRF) for the prediction of iodine in cow milk. Results showed moderate accuracy of the ED-XRF technique, with a coefficient of determination in cross validation of 0.60. This study represents a first contribution towards the possibility to discriminate milk with high or low iodine concentration, as an essential preliminary step for the introduction into the market of naturally fortified milk.
Collapse
Affiliation(s)
- E Visentin
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - G Niero
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy.
| | - M De Marchi
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| |
Collapse
|
9
|
Wesolowska M, Yeates AJ, McSorley EM, van Wijngaarden E, Shamlaye CF, Myers GJ, Strain JJ, Mulhern MS. Potential role of selenium in modifying the effect of maternal methylmercury exposure on child neurodevelopment - A review. Neurotoxicology 2023; 99:59-69. [PMID: 37659579 DOI: 10.1016/j.neuro.2023.08.003] [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: 06/27/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 09/04/2023]
Abstract
Selenium (Se) is an essential trace element for normal neurodevelopment. It is incorporated into multiple selenoenzymes which have roles in the brain and neurological function, the synthesis of thyroid hormones, the antioxidant defense system, DNA synthesis, and reproduction. Fish is a source of both Se and neurotoxic methylmercury (MeHg). Selenium is known to ameliorate the effects of MeHg in experimental animals, but studies in children exposed to both Se and MeHg through prenatal fish consumption have been inconclusive. Research on Se's implications for pregnancy and child neurodevelopment is limited. The aims of this review are to summarize the literature on the biological roles of Se during pregnancy and the potential role in mitigating the effects of MeHg exposure from fish consumption on human health. This review has shown that Se concentrations among pregnant women globally appear insufficient, with the majority of pregnant women reporting Se concentrations below 70 µg/L during pregnancy. The role of Se in child development and its interactions with MeHg in children are inconclusive. Further investigation of the interaction between Se and MeHg in relation to child neurodevelopment in high fish-eating populations is required to fully elucidate effects.
Collapse
Affiliation(s)
- Maria Wesolowska
- Nutrition Innovation Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK
| | - Alison J Yeates
- Nutrition Innovation Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK
| | - Emeir M McSorley
- Nutrition Innovation Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK
| | | | | | - Gary J Myers
- School of Medicine and Dentistry, University of Rochester, New York, United States
| | - J J Strain
- Nutrition Innovation Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK
| | - Maria S Mulhern
- Nutrition Innovation Centre for Food and Health, Ulster University, Coleraine BT52 1SA, UK.
| |
Collapse
|
10
|
Aarsland TE, Solvik BS, Bakken KS, Sleire SN, Kaldenbach S, Holten-Andersen MN, Nermo KR, Fauskerud IT, Østvedt TH, Lohne S, Gjengedal ELF, Strand TA. Iodine Nutrition in Children ≤2 years of Age in Norway. J Nutr 2023; 153:3237-3246. [PMID: 37742796 PMCID: PMC10687616 DOI: 10.1016/j.tjnut.2023.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023] Open
Abstract
BACKGROUND As a component of the thyroid hormones (THs), iodine is vital for normal neurodevelopment during early life. However, both deficient and excess iodine may affect TH production, and data on iodine status in young children are scarce. OBJECTIVES To describe iodine nutrition (iodine status and intake) in children ≤2 y of age in Innlandet County (Norway) and to describe the associations with maternal iodine nutrition. METHODS A cross-sectional study was performed in a representative sample of mother-child pairs selected from 30 municipalities from November 2020 until October 2021. Iodine status [child urinary iodine concentration (UIC), maternal UIC, and breast milk iodine concentration (BMIC)] was measured. Child's iodine intake was estimated using 2 24-h dietary recalls (24-HR) and a food frequency questionnaire. The Multiple Source Method was used to estimate the usual iodine intake distributions from the 24-HR assessments. RESULTS The median UIC in 333 children was 145 μg/L, indicating adequate iodine status according to the WHO cutoff (100 μg/L). The median usual iodine intake was 83 μg/d. Furthermore, 35% had suboptimal usual iodine intakes [below the proposed Estimated average requirement (72 μg/d)], whereas <1% had excessive usual iodine intakes [above the Upper intake level (200 μg/d)]. There was a positive correlation between children's iodine intake and BMIC (Spearman rank correlation coefficient r = 0.67, P < 0.001), and between children's UIC and BMIC (r = 0.43, P < 0.001), maternal UIC (r = 0.23, P = 0.001), and maternal iodine intake (r = 0.20, P = 0.004). CONCLUSION Despite a median UIC above the cutoff for iodine sufficiency, more than a third of the children had suboptimal usual iodine intakes. Our findings suggest that many children will benefit from iodine fortification and that risk of iodine excess in this age group is low.
Collapse
Affiliation(s)
- Tonje E Aarsland
- Center of International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Women's Clinic at Lillehammer Hospital, Innlandet Hospital Trust, Lillehammer, Norway.
| | - Beate S Solvik
- Center of International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Women's Clinic at Lillehammer Hospital, Innlandet Hospital Trust, Lillehammer, Norway
| | - Kjersti S Bakken
- Center of International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Women's Clinic at Lillehammer Hospital, Innlandet Hospital Trust, Lillehammer, Norway
| | - Synnøve Næss Sleire
- Seafood, Nutrition and Environmental State, Institute of Marine Research, Bergen, Norway
| | - Siri Kaldenbach
- Department of Paediatric and Adolescent Medicine, Innlandet Hospital Trust, Lillehammer, Norway; Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Mads N Holten-Andersen
- Department of Paediatric and Adolescent Medicine, Innlandet Hospital Trust, Lillehammer, Norway; Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Kristina R Nermo
- Center of International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Department of Microbiology, Innlandet Hospital Trust, Lillehammer, Norway
| | - Ingunn T Fauskerud
- Department of Microbiology, Innlandet Hospital Trust, Lillehammer, Norway
| | - Thobias H Østvedt
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Solfrid Lohne
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Elin L F Gjengedal
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Tor A Strand
- Center of International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Department of Research, Innlandet Hospital Trust, Lillehammer, Norway
| |
Collapse
|
11
|
Zhang Y, Wang J, Ma W, Li X, Wang H, Xu J. Survey of iodized salt coverage in areas with different water iodine concentrations and the iodine status of local women. Eur J Nutr 2023; 62:2919-2928. [PMID: 37402817 DOI: 10.1007/s00394-023-03198-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 06/23/2023] [Indexed: 07/06/2023]
Abstract
PURPOSE There were only two definitions of iodine-deficient (water iodine concentration < 10 μg/L) and iodine-excess areas (water iodine concentration > 100 μg/L) in China before 2020. Areas with water iodine concentration between 10 and 100 μg/L implement the same policy as iodine-deficient areas to provide iodized salt. The definition of iodine-adequate areas was formulated in 2020 for the first time. The paper aims to investigate the coverage rate of iodized salt (CR) in different areas defined according to the latest national standards, evaluate the iodine status of local women, and provide a basis for the revision and improvement of relevant policies. METHODS A total of 1948 women aged 18-60 were recruited from the iodine extra-high areas (IEHA), iodine-excess areas (IEA), iodine-adequate areas (IAA), inland iodine-deficient areas (IIDA), and coastal iodine-deficient areas (CIDA). Information on daily diet was collected with the Food Frequency Questionnaire. Drinking water, salt, food, and urine samples were collected and tested in our laboratory. Based on the recommended daily iodine intake, we assessed whether the subjects' daily iodine intake levels were adequate. RESULTS The CR and the median urinary iodine concentrations (UICs) were 4.02% and 98.03 μg/L in CIDA, 89.74% and 144.93 μg/L in IIDA, 26.55% and 178.60 μg/L in IAA, 8.78% and 446.5 μg/L in IEA, 3.95% and 605.4 μg/L in IEHA, respectively. The differences among these five areas were statistically significant (P < 0.0001). The daily dietary iodine intakes were mainly from drinking water in IAA (63.92%), IEA (92.29%), and IEHA (92.93%), and were mainly from iodized salt in IIDA (59.22%) and food in CIDA (86.6%). CONCLUSION Women in IAA and IIDA were in an adequate iodine state. Women in IEA and IEHA were in an iodine-excess state, and it is necessary to carry out water improvements projects. Women in CIDA were in a slight iodine-deficient state, and health education on scientific iodine fortification should be strengthened to increase iodine intake.
Collapse
Affiliation(s)
- Ying Zhang
- National Health Commission Key Laboratory of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, No 155 Changbai Road, Changping District, Beijing, 100050, China
| | - Jianqiang Wang
- National Health Commission Key Laboratory of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, No 155 Changbai Road, Changping District, Beijing, 100050, China
| | - Wei Ma
- National Health Commission Key Laboratory of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, No 155 Changbai Road, Changping District, Beijing, 100050, China
| | - Xiuwei Li
- National Health Commission Key Laboratory of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, No 155 Changbai Road, Changping District, Beijing, 100050, China
| | - Haiyan Wang
- National Health Commission Key Laboratory of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, No 155 Changbai Road, Changping District, Beijing, 100050, China
| | - Jing Xu
- National Health Commission Key Laboratory of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, No 155 Changbai Road, Changping District, Beijing, 100050, China.
| |
Collapse
|
12
|
Moore SS, Costa A, Pozza M, Vamerali T, Niero G, Censi S, De Marchi M. How animal milk and plant-based alternatives diverge in terms of fatty acid, amino acid, and mineral composition. NPJ Sci Food 2023; 7:50. [PMID: 37717060 PMCID: PMC10505177 DOI: 10.1038/s41538-023-00227-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 09/07/2023] [Indexed: 09/18/2023] Open
Abstract
The decline in fresh milk in the Western world has in part been substituted by an increased consumption of plant-based beverages (PBB). These are often marketed as healthy and sustainable alternatives to milk and dairy foodstuff, although studies have suggested PBB to be of lower nutrient quality. The current study considered different brands of almond-, oat-, rice-, coconut- and soya-based beverages for a comparative analysis and found that they indeed presented lower contents of total protein, lipids, amino acids, and minerals than cow and goat milk. The only exception was given by soya-based beverages which approximated the protein content (3.47% vs. 3.42 and 3.25% in cow and goat milk, respectively) and amino acid composition of animal milk, and also demonstrated high mineral content. The natural presence of phyto-compounds in PBB characterised as antinutrients and their potential to exacerbate the issue of low nutrient quality by lowering bioavailability have been discussed.
Collapse
Affiliation(s)
- S S Moore
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Padova, Italy
| | - A Costa
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Padova, Italy.
| | - M Pozza
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Padova, Italy
| | - T Vamerali
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Padova, Italy
| | - G Niero
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Padova, Italy
| | - S Censi
- Department of Medicine, Endocrinology Unit, University of Padova, 35121, Padova, Italy
| | - M De Marchi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Padova, Italy
| |
Collapse
|
13
|
Keating E, Pinto E, Almeida A. Editorial: Iodine in health and disease. Front Nutr 2023; 10:1260834. [PMID: 37654472 PMCID: PMC10466027 DOI: 10.3389/fnut.2023.1260834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 07/31/2023] [Indexed: 09/02/2023] Open
Affiliation(s)
- Elisa Keating
- Unit of Biochemistry, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Edgar Pinto
- REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
- Department of Environmental Health, ESS, Polytechnic of Porto, Porto, Portugal
| | - Agostinho Almeida
- REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| |
Collapse
|
14
|
Rosendahl-Riise H, Aksnes S, Sabir Z, Ulleberg EK, Myklebust-Hansen T, Aakre I. Comparison of a digital iodine-specific dietary screener with 24-hour recall and urinary iodine concentration. J Nutr Sci 2023; 12:e90. [PMID: 37592931 PMCID: PMC10427488 DOI: 10.1017/jns.2023.74] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/12/2023] [Accepted: 07/12/2023] [Indexed: 08/19/2023] Open
Abstract
Mild-to-moderate iodine deficiency remains a problem worldwide, including in Norway. Of particular, concern is fertile, pregnant and lactating women. The Norwegian Dairy Council developed a digital iodine-specific dietary screener (I-screener) for the assessment of iodine intake levels but has yet to be validated. The aim was thus to investigate the relative validity of the I-screener by comparing estimates of iodine intake from the I-screener against a single 24-hour recall (24HR) and urinary iodine concentration (UIC) in fertile women. Healthy females were recruited in Bergen in August-December 2021. Six spot-urine samples from six consecutive days were collected into a pooled sample to assess UIC. Each participant completed a single administration of the I-screener and the 24HR. The estimated daily iodine intake from the I-screener was compared with the estimations from the 24HR and UIC. Seventy-two women aged 19-39 completed the study. The median UIC was 76 μg/l. Compared with the 24HR, the I-screener placed 83 % of the participants in the same/adjacent tertial, with a slight agreement between the methods (Cohen's kappa = 0⋅187). The present study shows an acceptable correlation between the I-screener and the 24HR (r = 0⋅318), but not between the I-screener and UIC (r = 0⋅122). Despite its varying iodine estimate abilities, the I-screener may be used as an initial screening tool to rank fertile women on an individual level into deficient inadequate, and sufficient iodine intake. However, due to the relatively high risk of misclassification, further assessment of iodine status should follow.
Collapse
Affiliation(s)
- Hanne Rosendahl-Riise
- Mohn Nutrition Research Laboratory and Center for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Siri Aksnes
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Zoya Sabir
- Mohn Nutrition Research Laboratory and Center for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | | | | | | |
Collapse
|
15
|
Nie J, Zhu Y, Wang C, Lin Q, Tayier R, Cai Z, Ma P, Zhang L. Relationship between iodine knowledge and dietary iodine intake in pregnant and lactating women: a cross-sectional study. Public Health Nutr 2023; 26:1436-1450. [PMID: 36946300 PMCID: PMC10346033 DOI: 10.1017/s1368980023000514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 02/04/2023] [Accepted: 02/24/2023] [Indexed: 03/23/2023]
Abstract
OBJECTIVE This study assessed the iodine knowledge of pregnant and lactating women and the relationship to dietary iodine intake and iodine status. The factors influencing iodine intake were analysed. DESIGN Basic information and iodine knowledge were collected via a questionnaire. A FFQ assessed dietary iodine intake. The urinary iodine concentration (UIC) was measured using the arsenic-cerium catalytic spectrophotometric determination of iodine in urine (WS/T 107 -2016). SETTING A cross-sectional study involving pregnant and lactating women in Xinjiang, China was conducted. PARTICIPANTS A total of 1181 pregnant women and 504 lactating women were enrolled in the study. RESULTS The median UIC for pregnant and lactating women was 179·27 and 192·81 µg/l, respectively, and the dietary iodine intake was 407·16 and 356·89 µg/d, respectively. Of the pregnant and lactating women, 73·4 % and 82·5 % had medium iodine knowledge, respectively. In pregnant women, iodine knowledge and dietary iodine intake were positively correlated. High iodine knowledge and iodine education were shown to be protective factors for excessive iodine intake in pregnant women. CONCLUSION This study demonstrated that the iodine nutritional status of women in Xinjiang was appropriate, and iodine knowledge was at a medium level, but there was confusion about iodine nutrition. Public education is needed to improve iodine knowledge and active iodine supplementation awareness among these populations of women.
Collapse
Affiliation(s)
- Jiaoyang Nie
- School of Public Health, Xinjiang Medical University, Urumqi, People’s Republic of China
| | - Yuming Zhu
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Chenchen Wang
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Qin Lin
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Rishalaiti Tayier
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Zhuoxuan Cai
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Pinjiang Ma
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Ling Zhang
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| |
Collapse
|
16
|
Mou Y, Qu T, Wang R, Zhang Y, He Z, Gu S. The association of high-fluoride and high-iodine combined exposure with dental fluorosis and goiter: a meta-analysis. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:3143-3153. [PMID: 36155875 DOI: 10.1007/s10653-022-01396-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 04/08/2022] [Indexed: 06/01/2023]
Abstract
It is controversial that high-fluoride and high-iodine combined exposure affects the prevalence of dental fluorosis and goiter. The aim of this study was to explore the potential association between high-fluoride and high-iodine combined exposure with dental fluorosis and goiter. We retrieved relevant articles from PubMed, Cochrane Library, China National Knowledge Infrastructure, Wanfang Database and China Science and Technology Journal Database (VIP). The query format was 1 # "Fluorosis" OR "Fluoride," 2 # "Iodine" OR "Iodide," and 3 # 1 AND 2. A total of 20 papers were included in this study after independent review by two investigators. Our analysis showed that high-fluoride and high-iodine biphasic exposure was significantly associated with the prevalence of goiter (OR = 4.69, 95% CI 2.82-7.80, P < 0.001). The prevalence of dental fluorosis was also significantly raised (OR = 11.71, 95% CI 7.57-18.14, P < 0.001). Sensitivity analysis suggested that combined statistics of multiple studies were reliable. For goiter, subgroup analysis revealed study province, sample size and published year as sources of heterogeneity (P < 0.001). For dental fluorosis, only sample size was the impact factor of heterogeneity. As well, funnel plot, Begg's test and Egger's test suggested there was no publication bias (P > 0.05). Overall, our study demonstrates that high-fluoride and high-iodine combined exposure is a risk factor for occurrence of dental fluorosis and goiter. The chronic of high-fluoride and high-iodine combined exposure is a significant higher risk of disease than normal.
Collapse
Affiliation(s)
- Yahao Mou
- Department of Environmental and Occupational Health, Faculty of Public Health, Dali University, Dali, Yunnan, China
| | - Tengjiao Qu
- Department of Environmental and Occupational Health, Faculty of Public Health, Dali University, Dali, Yunnan, China
| | - Ruiyu Wang
- Department of Environmental and Occupational Health, Faculty of Public Health, Dali University, Dali, Yunnan, China
| | - Yulu Zhang
- Department of Environmental and Occupational Health, Faculty of Public Health, Dali University, Dali, Yunnan, China
| | - Zuoshun He
- Department of Environmental and Occupational Health, Faculty of Public Health, Dali University, Dali, Yunnan, China
| | - Shiyan Gu
- Department of Environmental and Occupational Health, Faculty of Public Health, Dali University, Dali, Yunnan, China.
| |
Collapse
|
17
|
Fuse Y, Ogawa H, Tsukahara Y, Fuse Y, Ito Y, Shishiba Y, Irie M. Iodine Metabolism and Thyroid Function During the Perinatal Period: Maternal-Neonatal Correlation and Effects of Topical Povidone-Iodine Skin Disinfectants. Biol Trace Elem Res 2023; 201:2685-2700. [PMID: 35931927 DOI: 10.1007/s12011-022-03363-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/15/2022] [Indexed: 11/02/2022]
Abstract
An adequate maternal iodine intake during pregnancy and lactation is essential for growth and mental development in fetuses and newborns. There are limited data on perinatal iodine metabolism in mothers and infants, as well as the effect of povidone-iodine (PVP-I) antiseptics used in cesarean delivery. The urinary iodine concentration (UIC), serum iodine, thyrotropin (TSH), free thyroxine (FT4), and breast milk iodine concentration (BMIC) were measured consecutively in a total of 327 mothers and 249 term-infants in two prospective studies. The maternal median UIC was 164 μg/L in the third trimester, increased to 256 μg/L at 44 h after birth, and then decreased to 116 μg/L 1 month later. The BMIC on the 4th and 32th postpartum days was 17.6 and 13.5 μg/100 g, respectively. In neonatal infants born to the mothers unexposed to PVP-I, the median UIC was 131 μg/L in the first voiding urine and increased to 272 μg/L on day 4 and then slightly decreased to 265 μg/L on day 28 suggesting sufficient iodine reserve at birth. PVP-I antiseptics containing 1 g of iodine for skin preparation at cesarean delivery transiently increased maternal serum iodine concentration (1.9-fold), UIC (7.8-fold) at 41 h after surgery and BMIC, while it had little effect on maternal TSH, FT4, and neonatal UIC, TSH, or FT4. The iodine status of pregnant women and their infants was adequate in this population; however, the UIC in lactating mothers at one postpartum month was low enough to suggest iodine deficiency or near iodine deficiency. Further studies are necessary.
Collapse
Affiliation(s)
- Yozen Fuse
- Foundation for Growth Science, Research Committee On Iodine Related Health Problems, 5-1-16 Hongo, Bunkyou-ku, Tokyo, 1130033, Japan.
| | - Hiroyasu Ogawa
- Ogawa Clinic, 29 Maioka-cho, Totsuka-ku, Yokohama, 2440813, Japan
| | - Yoshiaki Tsukahara
- Nakamachidai Ladies Clinic, 3-7-1 Nakamachidai, Tsuzuki-ku, Yokohama, 2240041, Japan
| | - Yoji Fuse
- Nakamachidai Ladies Clinic, 3-7-1 Nakamachidai, Tsuzuki-ku, Yokohama, 2240041, Japan
| | - Yoshiya Ito
- The Japanese Red Cross Hokkaido College of Nursing, 664-1, Akebonochou, Kitami, Hokkaido, 0900011, Japan
| | - Yoshimasa Shishiba
- Foundation for Growth Science, Research Committee On Iodine Related Health Problems, 5-1-16 Hongo, Bunkyou-ku, Tokyo, 1130033, Japan
| | - Minoru Irie
- Foundation for Growth Science, Research Committee On Iodine Related Health Problems, 5-1-16 Hongo, Bunkyou-ku, Tokyo, 1130033, Japan
| |
Collapse
|
18
|
Grossklaus R, Liesenkötter KP, Doubek K, Völzke H, Gaertner R. Iodine Deficiency, Maternal Hypothyroxinemia and Endocrine Disrupters Affecting Fetal Brain Development: A Scoping Review. Nutrients 2023; 15:nu15102249. [PMID: 37242131 DOI: 10.3390/nu15102249] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
This scoping review critically discusses the publications of the last 30 years on the impact of mild to moderate iodine deficiency and the additional impact of endocrine disrupters during pregnancy on embryonal/fetal brain development. An asymptomatic mild to moderate iodine deficiency and/or isolated maternal hypothyroxinemia might affect the development of the embryonal/fetal brain. There is sufficient evidence underlining the importance of an adequate iodine supply for all women of childbearing age in order to prevent negative mental and social consequences for their children. An additional threat to the thyroid hormone system is the ubiquitous exposure to endocrine disrupters, which might exacerbate the effects of iodine deficiency in pregnant women on the neurocognitive development of their offspring. Ensuring adequate iodine intake is therefore essential not only for healthy fetal and neonatal development in general, but it might also extenuate the effects of endocrine disruptors. Individual iodine supplementation of women of childbearing age living in areas with mild to moderate iodine deficiency is mandatory as long as worldwide universal salt iodization does not guarantee an adequate iodine supply. There is an urgent need for detailed strategies to identify and reduce exposure to endocrine disrupters according to the "precautional principle".
Collapse
Affiliation(s)
- Rolf Grossklaus
- Department of Food Safety, Federal Institute for Risk Assessment, D-10589 Berlin, Germany
| | | | - Klaus Doubek
- Professional Association of Gynecologists, D-80337 Munich, Germany
| | - Henry Völzke
- Study of Health in Pomerania/Clinical-Epidemiological Research, Institute for Community Medicine, University Medicine Greifswald, D-17475 Greifswald, Germany
| | - Roland Gaertner
- Medical Clinic IV, University of Munich, D-80336 Munich, Germany
| |
Collapse
|
19
|
Wan S, Jin B, Ren B, Boah M, Shen H. Relationship between mild iodine deficiency in pregnant women and thyroid function: A meta-analysis. J Trace Elem Med Biol 2023; 78:127197. [PMID: 37209527 DOI: 10.1016/j.jtemb.2023.127197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/27/2023] [Accepted: 05/05/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND Pregnant women are among the key groups in iodine nutrition evaluation. The purpose of the present study was to summarize the evidence supporting the relationship between mild iodine deficiency (UIC: 100-150 μg/L) in pregnant women and levels of thyroid function tests. METHODS This review follows the guidelines for systematic reviews (PRISMA 2020). Three electronic databases (PubMed, Medline, and Embase) were searched for relevant publications in English on the association between mild iodine deficiency in pregnant women and thyroid function. Articles published in Chinese were searched in China's electronic databases (CNKI, WanFang, CBM, and WeiPu). Pooled effects were presented as standardized mean differences (SMDs) and odds ratios (ORs) with 95% confidence intervals (CIs) using fixed or random effect models, respectively. This meta-analysis was registered at www.crd.york.ac.uk/prospero as CRD42019128120. RESULTS We summarized the results from 7 articles with 8261 participants. The overall pooled results showed that the levels of FT3, FT4, and abnormal TgAb (the antibody levels exceeded the upper limit of the reference range) were significantly increased in pregnant women with mild iodine deficiency compared to pregnant women with adequate iodine status (FT3: SMD=0.854, 95% CI: 0.188, 1.520; FT4: SMD=0.550, 95% CI: 0.050, 1.051; TgAb: OR=1.292, 95% CI: 1.095; 1.524). Subgroup analysis was carried out on the sample size, ethnicity, country, and gestation of FT3, FT4, and TSH, but no plausible factor was found. Egger's tests indicated no publication bias.The increase in FT3 and FT4, as well as TgAb levels, in pregnant women is associated with mild iodine deficiency. CONCLUSION Mild iodine deficiency is associated with an increase in FT3,FT4 and TgAb levels in pregnant women. Mild iodine deficiency may increase the risk of thyroid dysfunction in pregnant women.
Collapse
Affiliation(s)
- Siyuan Wan
- Department of Preventive Medicine, Qiqihar Medical University, Qiqihar, Heilongjiang, China.
| | - Baiming Jin
- Department of Preventive Medicine, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Bingxuan Ren
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - Michael Boah
- Department of Epidemiology, Biostatistics and Disease Control, School of Public Health, University for Development Studies, Tamale, Ghana
| | - Hongmei Shen
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China.
| |
Collapse
|
20
|
Wu W, Guo W, Zhang N, Gao M, Zhang K, Pearce EN, Li S, Ren Z, Yang Y, Wang C, Zhang W. Adverse Effects on the Thyroid of Chinese Pregnant Women Exposed to Long-Term Iodine Excess: Optimal and Safe Tolerable Upper Intake Levels of Iodine. Nutrients 2023; 15:nu15071635. [PMID: 37049475 PMCID: PMC10097226 DOI: 10.3390/nu15071635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/18/2023] [Accepted: 03/23/2023] [Indexed: 03/30/2023] Open
Abstract
Ensuring optimal iodine nutrition in pregnant women is a global public health concern. However, there is no direct data on safe tolerable upper intake levels (ULs) for pregnant women. A cross-sectional study was performed to determine the ULs of pregnant women. A total of 744 pregnant women were enrolled in this study. The median (IQR) urinary iodine concentration (UIC) in pregnant women was 150.2 (87.6, 268.0) μg/L, and the urinary iodine excretion (UIE) over 24 h was 204.2 (116.0, 387.0) μg/day. Compared with those with a UIE figure of between 150–250 μg/day, the reference group, the prevalence of thyroid dysfunction was 5.7 times higher (95%CI: 1.7, 19.2) in pregnant women with a UIE figure of between 450–550 μg/day, and 3.9 times higher (95%CI: 1.5, 10.3) in pregnant women with a UIE figure of ≥550 μg/day. Compared with an estimated iodine intake (EII) of between 100–200 μg/day, the reference group, the prevalence of thyroid dysfunction was 4.3 times higher (95%CI: 1.3, 14.4) in pregnant women with a UIE figure of between 500–600 μg/day, and 3.6 times higher (95%CI: 1.5, 8.9) in pregnant women with UIE of ≥600 μg/day. In general, our cross-sectional study found that excessive iodine intake during pregnancy appears to directly increase the risk of thyroid dysfunction. Avoiding chronic iodine intakes of 500 μg/day or higher or having a UIE figure of ≥450 μg/day is recommended for pregnant women in China.
Collapse
|
21
|
Infant iodine status and associations with maternal iodine nutrition, breast-feeding status and thyroid function. Br J Nutr 2023; 129:854-863. [PMID: 35535981 PMCID: PMC9975782 DOI: 10.1017/s0007114522001465] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Adequate iodine nutrition during infancy is required for normal thyroid function and, subsequently, brain development. However, data on infant iodine status in the first year of life are scarce. This study aimed to describe infant iodine status and further explore its associations with maternal iodine nutrition, breast-feeding status and thyroid function. In this cohort study, 113 infants were followed up at ages 3, 6 and 11 months in Norway. Infant and maternal urinary iodine concentration (UIC), maternal iodine intake, breast milk iodine concentration (BMIC), breast-feeding status and infant thyroid function tests were measured. The median infant UIC was 82 µg/l at the age of 3 months and below the WHO cut-off of 100 µg/l. Infant UIC was adequate later in infancy (median 110 µg/l at ages 6 and 11 months). Infant UIC was associated positively with maternal UIC (β = 0·33, 95 % CI (0·12, 0·54)), maternal iodine intake (β = 0·30, 95 % CI (0·18, 0·42)) and BMIC (β = 0·46, 95 % CI (0·13, 0·79)). Breastfed infants had lower median UIC compared with formula-fed infants at ages 3 months (76 v. 190 µg/l) and 6 months (105 v. 315 µg/l). Neither infant UIC nor BMIC were associated with infant thyroid function tests. In conclusion, breastfed infants in Norway are at risk of insufficient iodine intake during the first months of life. Maternal iodine nutrition is important for providing sufficient iodine intake in infants, and awareness of promoting adequate iodine nutrition for lactating women should be prioritised.
Collapse
|
22
|
Niero G, Visentin G, Censi S, Righi F, Manuelian CL, Formigoni A, Mian C, Bérard J, Cassandro M, Penasa M, Moore S, Costa A, De Marchi M. Invited review: Iodine level in dairy products-A feed-to-fork overview. J Dairy Sci 2023; 106:2213-2229. [PMID: 36870838 DOI: 10.3168/jds.2022-22599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/21/2022] [Indexed: 03/06/2023]
Abstract
The theme of iodine in the dairy sector is of particular interest due to the involvement and the interconnection of several stakeholders along the dairy food chain. Iodine plays a fundamental role in animal nutrition and physiology, and in cattle it is an essential micronutrient during lactation and for fetal development and the calf's growth. Its correct use in food supplementation is crucial to guarantee the animal's recommended daily requirement to avoid excess intake and long-term toxicity. Milk iodine is fundamental for public health, being one of the major sources of iodine in Mediterranean and Western diets. Public authorities and the scientific community have made great efforts to address how and to what extent different drivers may affect milk iodine concentration. The scientific literature concurs that the amount of iodine administered through animal feed and mineral supplements is the most important factor affecting its concentration in milk of most common dairy species. Additionally, farming practices related to milking (e.g., use of iodized teat sanitizers), herd management (e.g., pasture vs. confinement), and other environmental factors (e.g., seasonality) have been identified as sources of variation of milk iodine concentration. Overall, the aim of this review is to provide a multilevel overview on the mechanisms that contribute to the iodine concentration of milk and dairy products.
Collapse
Affiliation(s)
- G Niero
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
| | - G Visentin
- Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Italy
| | - S Censi
- Department of Medicine, Endocrinology Unit, University of Padova, 35121 Padova, Italy
| | - F Righi
- Department of Veterinary Science, University of Parma, Via del Taglio 10, 43126 Parma, Italy
| | - C L Manuelian
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
| | - A Formigoni
- Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Italy
| | - C Mian
- Department of Medicine, Endocrinology Unit, University of Padova, 35121 Padova, Italy
| | - J Bérard
- Agroscope, Division Animal Production Systems and Animal Health, 1725 Posieux, Switzerland
| | - M Cassandro
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy; Italian Holstein, Brown and Jersey Association, Via Bergamo 292, 26100 Cremona, Italy
| | - M Penasa
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
| | - S Moore
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
| | - A Costa
- Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Italy.
| | - M De Marchi
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
| |
Collapse
|
23
|
Aarsland TE, Kaldenbach S, Bakken KS, Solvik BS, Holten-Andersen M, Strand TA. Inadequate Iodine Intake in Mothers of Young Children in Innlandet County, Norway. Curr Dev Nutr 2023; 7:100047. [PMID: 37181930 PMCID: PMC10111588 DOI: 10.1016/j.cdnut.2023.100047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/01/2023] [Accepted: 02/10/2023] [Indexed: 02/19/2023] Open
Abstract
Background Iodine has an essential role in child growth and brain development. Thus, sufficient iodine intake is particularly important in women of childbearing age and lactating women. Objectives This cross-sectional study aimed to describe iodine intake in a large random sample of mothers of young children (aged ≤2 y) living in Innlandet County, Norway. Methods From November 2020 to October 2021, 355 mother-child pairs were recruited from public health care centers. Dietary data were obtained using two 24-h dietary recalls (24-HRs) per woman and an electronic FFQ. The Multiple Source Method was used to estimate the usual iodine intake from the 24-HR assessment. Results Based on the 24-HRs, the median (P25, P75) usual iodine intake from food was 117 μg/d (88, 153) in nonlactating women and 129 μg/d (95, 176) in lactating women. The median (P25, P75) total usual iodine intake (from food combined with supplements) was 141 μg/d (97, 185) in nonlactating women and 153 μg/d (107, 227) in lactating women. Based on the 24-HRs, 62% of the women had a total iodine intake below the recommendations (150 μg/d in nonlactating women and 200 μg/d in lactating women), and 23% of them had an iodine intake below the average requirement (100 μg/d). The reported use of iodine-containing supplements was 21.4% in nonlactating women and 28.9% in lactating women. In regular users of iodine-containing supplements (n = 63), supplements contributed to an average of 172 μg/d of iodine. Among regular iodine supplement users, 81% reached the recommendations compared with 26% of nonsupplement users (n = 237). The iodine intake estimated by FFQ was substantially higher than that estimated by 24-HRs. Conclusions Maternal iodine intake in Innlandet County was inadequate. This study confirms the need for action to improve iodine intake in Norway, particularly among women of childbearing age.
Collapse
Affiliation(s)
- Tonje E. Aarsland
- Center of International Health, Department of Global Public Health and Primary Care, University of Bergen, Norway
- Women’s Clinic at Lillehammer Hospital, Innlandet Hospital Trust, Lillehammer, Norway
| | - Siri Kaldenbach
- Department of Paediatric and Adolescent Medicine, Innlandet Hospital Trust, Lillehammer, Norway
- Clinical Medicine, University of Oslo, Faculty of Medicine, Oslo, Norway
| | - Kjersti S. Bakken
- Center of International Health, Department of Global Public Health and Primary Care, University of Bergen, Norway
- Women’s Clinic at Lillehammer Hospital, Innlandet Hospital Trust, Lillehammer, Norway
| | - Beate S. Solvik
- Center of International Health, Department of Global Public Health and Primary Care, University of Bergen, Norway
- Women’s Clinic at Lillehammer Hospital, Innlandet Hospital Trust, Lillehammer, Norway
| | - Mads Holten-Andersen
- Department of Paediatric and Adolescent Medicine, Innlandet Hospital Trust, Lillehammer, Norway
- Clinical Medicine, University of Oslo, Faculty of Medicine, Oslo, Norway
| | - Tor A. Strand
- Center of International Health, Department of Global Public Health and Primary Care, University of Bergen, Norway
- Department of Research, Innlandet Hospital Trust, Lillehammer, Norway
| |
Collapse
|
24
|
Velasco I, Vila L, Goya M, Oleaga A, de la Calle M, Santamaria FJ. Executive summary of the SEEN (Sociedad Española de Endocrinología y Nutrición[Spanish Society of Endocrinology and Nutrition])-SEGO (Sociedad Española deGinecología y Obstetricia [Spanish Society of Gynaecology and Obstetrics]) consensusdocument on the management of thyroid dysfunction during pregnancy. ENDOCRINOL DIAB NUTR 2023; 70 Suppl 1:38-50. [PMID: 36437195 DOI: 10.1016/j.endien.2022.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 03/14/2022] [Indexed: 11/27/2022]
Abstract
During pregnancy, thyroid function disorders are associated with multiple complications, both maternal and foetal. In recent years, numerous Clinical Practice Guidelines have been developed to facilitate the identification and correct management of thyroid disease in pregnant women. However, this proliferation of guidelines has led to confusion by proposing different cut-off points for reference values and different recommendations for similar situations. For this reason, the Sociedad Española de Endocrinología y Nutrición and the Sociedad Española de Ginecología y Obstetricia have prepared this Consensus Document, with the aim of creating a framework for joint action to unify criteria for the diagnosis and treatment of thyroid dysfunction in these patients. The document is structured to answer the most frequently asked questions in clinical practice, grouped into five sections: 1/Reference values for thyroid function tests and screening during pregnancy 2/Iodine nutrition 3/Hypothyroidism and pregnancy 4/Hyperthyroidism and pregnancy 5/ Thyroid autoimmunity.
Collapse
Affiliation(s)
- Inés Velasco
- Servicio de Obstetricia y Ginecología, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain; Grupo de investigación de Endocrinología, Tiroides y Obesidad, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain; Departamento de Pediatria, Obstetrícia y Ginecología, Universitat Autònoma de Barcelona, Campus UAB, Bellaterra, Barcelona, Spain
| | - Lluís Vila
- Servicio de Endocrinología y Nutrición, Complejo Hospitalario Moisés Broggi, Sant Joan Despi, Barcelona, Spain; Grupo de Investigación en Atención a la Salud Sexual y Reproductiva (GRASSIR), Instituto Universitario de Investigación en Atención Primaria Jordi Gol (IDIAP Jordi Gol), L'Hospitalet Llobregat, Barcelona, Spain; Departamento de Medicina, Universitat de Barcelona, Barcelona, Spain.
| | - Maria Goya
- Departamento de Pediatria, Obstetrícia y Ginecología, Universitat Autònoma de Barcelona, Campus UAB, Bellaterra, Barcelona, Spain; Grupo de Investigación Medicina Materno-Fetal, Vall d'Hebron Institut de Recerca (VHIR), Hospital Universitari Vall d'Hebron, Barcelona, Spain; Servicio de Obstetricia y Ginecología, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Amelia Oleaga
- Servicio Endocrinología y Nutrición, Hospital Universitario de Basurto, Bilbao, Spain
| | - Maria de la Calle
- Servicio de Obstetricia y Ginecología, Hospital La Paz, Madrid, Spain; Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Fco Javier Santamaria
- Servicio de Endocrinología y Nutrición, Hospital Universitario de Cruces, Barakaldo, Bizkaia, Spain; CIBER Diabetes y Enfermedades Metabólicas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; CIBER Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; UPV-EHU-Universidad del País Vasco, Leoia, Bizkaia, Spain
| |
Collapse
|
25
|
Odo DB, Yang IA, Dey S, Hammer MS, van Donkelaar A, Martin RV, Dong GH, Yang BY, Hystad P, Knibbs LD. A cross-sectional analysis of long-term exposure to ambient air pollution and cognitive development in children aged 3-4 years living in 12 low- and middle-income countries. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 318:120916. [PMID: 36563987 DOI: 10.1016/j.envpol.2022.120916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 08/31/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Exposure to ambient air pollution may affect cognitive functioning and development in children. Unfortunately, there is little evidence available for low- and middle-income countries (LMICs), where air pollution levels are highest. We analysed the association between exposure to ambient fine particulate matter (≤2.5 μm [PM2.5]) and cognitive development indicators in a cross-sectional analysis of children (aged 3-4 years) in 12 LMICs. We linked Demographic and Health Survey data, conducted between 2011 and 2018, with global estimates of PM2.5 mass concentrations to examine annual average exposure to PM2.5 and cognitive development (literacy-numeracy and learning domains) in children. Cognitive development was assessed using the United Nations Children's Fund's early child development indicators administered to each child's mother. We used multivariable logistic regression models, adjusted for individual- and area-level covariates, and multi-pollutant models (including nitrogen dioxide and surface-level ozone). We assessed if sex and urban/rural status modified the association of PM2.5 with the outcome. We included 57,647 children, of whom, 9613 (13.3%) had indicators of cognitive delay. In the adjusted model, a 5 μg/m3 increase in annual all composition PM2.5 was associated with greater odds of cognitive delay (OR = 1.17; 95% CI: 1.13, 1.22). A 5 μg/m3 increase in anthropogenic PM2.5 was also associated with greater odds of cognitive delay (OR = 1.05; 95% CI: 1.00, 1.10). These results were robust to several sensitivity analyses, including multi-pollutant models. Interaction terms showed that urban-dwelling children had greater odds of cognitive delay than rural-dwelling children, while there was no significant difference by sex. Our findings suggest that annual average exposure to PM2.5 in young children was associated with adverse effects on cognitive development, which may have long-term consequences for educational attainment and health.
Collapse
Affiliation(s)
- Daniel B Odo
- School of Public Health, The University of Queensland, Herston, QLD 4006, Australia; College of Health Sciences, Arsi University, Asela, Ethiopia.
| | - Ian A Yang
- Thoracic Program, The Prince Charles Hospital, Metro North Hospital and Health Service, Brisbane, Australia; UQ Thoracic Research Centre, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Sagnik Dey
- Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India; Arun Duggal Centre of Excellence for Research in Climate Change and Air Pollution, Indian Institute of Technology Delhi, New Delhi, India
| | - Melanie S Hammer
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, United States
| | - Aaron van Donkelaar
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, United States
| | - Randall V Martin
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, United States
| | - Guang-Hui Dong
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Bo-Yi Yang
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Perry Hystad
- College of Public Health and Human Sciences, Oregon State University, USA
| | - Luke D Knibbs
- School of Public Health, The University of Sydney, Camperdown, NSW 2006, Australia
| |
Collapse
|
26
|
Zhu Z, Zhu Y, Wang L, Qi Q, Huang L, Andegiorgish AK, Elhoumed M, Cheng Y, Dibley MJ, Sudfeld CR, Zeng L. Effects of antenatal micronutrient supplementation regimens on adolescent emotional and behavioral problems: A 14-year follow-up of a double-blind, cluster-randomized controlled trial. Clin Nutr 2023; 42:129-135. [PMID: 36527827 DOI: 10.1016/j.clnu.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/14/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Antenatal multiple micronutrient supplementation has been shown to have beneficial effects on birth outcomes and may improve child development. However, whether there is an effect of antenatal micronutrient supplementation strategies on offspring socioemotional outcomes remains unknown. We aimed to examine the effect of antenatal folic acid (FA), iron-folic acid (IFA), and multiple micronutrient (MMN) supplementation on adolescent emotional and behavioral outcomes. METHODS We conducted a double-blind, cluster-randomized trial of antenatal micronutrient supplementation in rural western China between 2002 and 2006. Pregnant females were randomized by village to receive either daily (i) 400 μg FA, (ii) IFA containing 60 mg iron and 400 μg FA or (iii) MMN supplementation containing 30 mg iron, 400 μg FA plus 13 additional vitamins and minerals. A 14-year follow-up of their offspring was conducted in 2016. Adolescents were administered the locally adapted Youth Self-Report-2001 (YSR-2001) which produced internalizing, externalizing, and total behavior problem scores. We applied generalized estimating equations to assess the effect of the randomized regimens on YSR-2001 scores and explored the potential effect modification by household wealth and initial timing and duration of supplementation. RESULTS A total of 1920 adolescents were included in the analysis, 1130 (58.9%) were male, and the mean (SD) age was 11.8 (0.78) years. Adolescents in IFA group had lower total (mean difference (MD): -2.89; 95% CI -5.73, -0.04) and externalizing (MD: -0.97; 95% CI -1.79, -0.15) problem scores as compared to those in FA group. There was no effect of MMN on behavior problem scores as compared to IFA and FA alone. Although, in effect modification analyses, MMN appeared to have greater beneficial effects in wealthier households than IFA and FA alone. CONCLUSIONS Iron supplementation during pregnancy reduced adolescent emotional and behavioral problem scores which provides additional support for expanding coverage of iron-containing prenatal supplements in resource-limited settings. TRIAL REGISTRATION isrctn. org Identifier: ISRCTN08850194.
Collapse
Affiliation(s)
- Zhonghai Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China
| | - Yingze Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China
| | - Liang Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China
| | - Qi Qi
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China
| | - Lin Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China
| | - Amanuel Kidane Andegiorgish
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China
| | - Mohamed Elhoumed
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China
| | - Yue Cheng
- Department of Nutrition and Food Safety Research, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China
| | - Michael J Dibley
- The Sydney School of Public Health, Faculty of Medicine, The University of Sydney, NSW, Australia
| | - Christopher R Sudfeld
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Lingxia Zeng
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education, Xi'an, Shaanxi, PR China.
| |
Collapse
|
27
|
Tayier R, Wang C, Ma P, Yuan Y, Zhang Y, Wu S, Zhang L. Iodine Nutritional Status of Pregnant Women After 14 Years of Lipiodol Supplementation: a Cross-Sectional Study in Historically Iodine-Deficient Areas of China. Biol Trace Elem Res 2023; 201:14-22. [PMID: 35322354 DOI: 10.1007/s12011-022-03123-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/17/2022] [Indexed: 01/11/2023]
Abstract
Southern Xinjiang has a history of serious iodine deficiency. Since 2007, pregnant women in this area have taken iodized salt and oral lipiodol preparations to prevent iodine deficiency disorders. However, the current status of iodine nutrition and thyroid function in this population is unknown. A cross-sectional study was conducted on 555 pregnant women from 5 counties (cities) in southern Xinjiang and 429 pregnant women from 3 counties in northern Xinjiang. The participants were given a questionnaire and serum concentrations of free triiodothyronine (FT3), free thyroxine (FT4), thyrotropic stimulating hormone (TSH), thyroglobulin antibody (Tg-Ab), and thyroid peroxidase antibody (TPO-Ab), and the urine iodine concentration (UIC) was measured. The median UIC and interquartile range [M (IQR)] of the 984 pregnant women in the study was 189.38 (143.15, 288.77) μg/L. Positive Tg-Ab and TPO-Ab titers were detected in 6.74% and 9.55%, 8.30% and 9.84%, and 7.39% and 10.55% in T1, T2, and T3, respectively. The incidence of subclinical hypothyroidism, clinical hypothyroidism, and isolated hypothyroxinemia in pregnant women in areas where lipiodol pills were taken was 4.32%, 0%, and 1.44%, respectively, which was significantly lower than those in areas where lipiodol pills were not taken. The median UIC (IQR) of pregnant women in the two regions was 213.80 (130.44, 331.77) μg/L and 168.30 (155.0, 254.8) μg/L, the UIC of pregnant women who took lipiodol pills was higher than in those who did not take lipiodol pills, and the difference was statistically significant (p < 0.05). According to WHO standards, all pregnant women in southern Xinjiang are in a state of adequate iodine nutrition. Taking lipiodol pills has improved the iodine nutrition level of pregnant women in this area. The results of this study did not find that oral lipiodol pills had adverse effects on pregnant women's thyroid function, but it is necessary to further study the effect of oral lipiodol pills on the offspring.
Collapse
Affiliation(s)
- Rishalaiti Tayier
- College of Public Health, Xinjiang Medical University, Urumqi, 830011, Xinjiang, People's Republic of China
| | - Chenchen Wang
- Xinjiang Uighur Autonomous Region Centre for Disease Control and Prevention, Urumqi, 830011, People's Republic of China
| | - Pinjiang Ma
- Xinjiang Uighur Autonomous Region Centre for Disease Control and Prevention, Urumqi, 830011, People's Republic of China
| | - Yimu Yuan
- Xinjiang Production and Construction Corps Hospital, Urumqi, 830011, Xinjiang, People's Republic of China
| | - Yuxia Zhang
- Urumqi Maternal and Child Health Hospital, Urumqi, 830011, Xinjiang, People's Republic of China
| | - Shunhua Wu
- Department of Occupational and Environmental Health, School of Public Health, Xinjiang Medical University, Urumqi, 830001, People's Republic of China.
| | - Ling Zhang
- Xinjiang Uighur Autonomous Region Centre for Disease Control and Prevention, Urumqi, 830011, People's Republic of China.
| |
Collapse
|
28
|
Guo W, Wu W, Gao M, Yang Y, Pearce EN, Li S, Ren Z, Zhang N, Zhang K, Pan Z, Zhang W. Characteristics and predictors of breast milk iodine in exclusively breastfed infants: Results from a repeated-measures study of iodine metabolism. Front Nutr 2022; 9:1017744. [PMID: 36438740 PMCID: PMC9682142 DOI: 10.3389/fnut.2022.1017744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/19/2022] [Indexed: 11/10/2022] Open
Abstract
Background The iodine supply of exclusively breastfed infants entirely depends upon breast milk. Changes in breast milk iodine affect infants’ iodine nutritional status. This study aimed to comprehensively assess the characteristics and predictors of breast milk iodine concentration (BMIC). Materials and methods This 7-day iodine metabolism experiment was conducted in 25 exclusively breastfed mother-infant pairs. The duplicate portion method was used to measure the mother’s daily iodine intake from foods and water, and maternal 24-h urine excretion was assessed. We recorded the number of breastfeeds per mother per day and collected breast milk samples before and after each feeding. Results The median [quartile (Q)1–Q3 range] of BMIC was 115 (86.7, 172) μg/L. The BMIC before breastfeeding was generally higher than that after breastfeeding. Time-sequential analysis found that morning BMIC was most highly correlated with the prior day’s iodine intake. Breast milk samples taken in the afternoon or after midnight are closer to the median level of BMIC throughout the day. The number of breast milk samples needed to estimate the iodine level with 95% CI within precision ranges of ± 20% was 83 for a population, 9 for an individual, and 2 for an individual’s single day. Maternal total iodine intake (TII) and urine iodine were significantly associated with BMIC. 24-h urinary iodine excretion (24-h UIE) was found to be the best predictive indicator for the BMIC (β = 0.71, 95% CI: 0.64, 0.79). Conclusion BMIC is a constantly changing indicator and trended downward during each breastfeeding. Breast milk samples taken in the afternoon or after midnight are most representative. BMIC was significantly associated with recent iodine intake. Maternal 24-h UIE was the best predictor of BMIC.
Collapse
Affiliation(s)
- Wenxing Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Wen Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Min Gao
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Ying Yang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Elizabeth N. Pearce
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston, MA, United States
| | - Shaohan Li
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Zhiyuan Ren
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Naifan Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Kexin Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Ziyun Pan
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Wanqi Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
- The Key Laboratory of Hormone and Development (Ministry of Health), Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
- *Correspondence: Wanqi Zhang,
| |
Collapse
|
29
|
Fu M, Wu W, Guo W, Jin Q, Meng Q, Gao Y, Yang R, Yang Y, Wang Z, Zhang W. Effects of maternal iodine nutritional status on neurodevelopmental and cognitive function of rat offspring. Front Nutr 2022; 9:996092. [DOI: 10.3389/fnut.2022.996092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectivesThis study aimed to explore the effect of maternal iodine status on the brain development of offspring in rats. Since in human studies, the interference of environmental factors and other nutrients cannot be removed.Materials and methodsA total of 48 female Wistar rats were randomly divided into four groups: low iodine (LI), normal iodine (NI), 10-fold high iodine (10HI), and 50-fold high iodine (50HI). The rats were killed on the 15th day of pregnancy and lactation after collecting 24-h urine. The iodine concentration in 24-h urine, blood, and placenta of pregnant rats, and 24-h urine, milk, blood, and mammary glands of lactating rats was determined by inductively coupled plasma mass spectrometry. The thyroid hormone of pregnant and lactating rats was detected by chemiluminescence. The offspring were subjected to the Morris water maze on the 10th day after birth. Serum was collected to detect the thyroid hormone of offspring. The protein expression of neuroendocrine-specific protein (NSP)-A and brain-derived neurotrophic factor (BDNF) in the offspring brain were studied.ResultsIodine storage in the placenta during pregnancy and mammary glands during lactation was positively correlated with iodine intake, and iodine storage in the placenta and mammary glands in the 50HI group was significantly higher than that in the NI group (P = 0.045 and P = 0.040). Compared with the NI group, the offspring thyroid-stimulating hormone (TSH) level was significantly higher in the 10HI group (P = 0.046), and the FT4 level was significantly lower in the 50HI group (P = 0.032). The Morris water maze showed that LI and 50HI groups required longer time and distance to find the platform than the NI group (P < 0.001). The platform crossing numbers in the LI and 50HI groups decreased significantly (P < 0.001). The expression of NSP-A in offspring brain was lower in the 10HI and 50HI groups than in the NI group (P = 0.026 and P = 0,008). BDNF expression levels were significantly lower in the LI, 10HI, and 50HI groups than in the NI group (P < 0.001).ConclusionMaternal iodine intake affects iodine storage in the placenta and lactating mammary gland, which in turn affects thyroid function and BDNF and NSP-A expression in the offspring.
Collapse
|
30
|
The Magnitude of Hidden Hunger and Cognitive Deficits among Children Living in Orphanages in Kumasi, Ghana. ADVANCES IN PUBLIC HEALTH 2022. [DOI: 10.1155/2022/9684785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This study assessed the magnitude of hidden hunger (micronutrient deficiencies) and cognitive deficits of 130 school-aged children (6–13 years old) living in three selected orphanages in Kumasi, Ghana. Sociodemographic data assessment, anthropometric assessment (BMI for age and height for age), dietary assessment (3-day repeated 24-hour dietary recall), urinary iodine level assessment, and cognitive performance assessment (Raven’s Coloured Progressive Matrices) were performed. Boys formed 50.8% of the study population, while girls formed 49.2%. The median age of participants was 10.50 years. About 12.3%, 7%, and 10.0% of participants were stunted, thin, and overweight/obese, respectively. The prevalence of mild iodine deficiency (i.e., 50–99 μg/L) was 16.2%. Iodine deficiency was significantly higher (23.6%) in participants who had lived for at least 7 years in the orphanage compared to those who had lived less than 7 years (10.7%) (
). About 17% of the participants performed poorly (<50%) on the cognition test. Mean cognition test scores were significantly different among the orphanages (
). The majority of participants, 89.2%, 54.6%, 76.9%, and 77.7%, had adequate intake of iron, zinc, vitamin C, and folate, respectively, whereas intake of vitamins A and B12 was inadequate for the majority of participants (90.8% and 50.8%, respectively). There was no significant correlation between micronutrient intake and cognitive performance. However, mean cognition test scores were significantly different between participants with adequate and inadequate iron and vitamin A intake (
and
, respectively). The findings of this study warrant a closer look at nutritional intakes in orphanages to improve hidden hunger and cognitive performance.
Collapse
|
31
|
Pregnant Dutch Women Have Inadequate Iodine Status and Selenium Intake. Nutrients 2022; 14:nu14193936. [PMID: 36235589 PMCID: PMC9572179 DOI: 10.3390/nu14193936] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 11/17/2022] Open
Abstract
Iodine and selenium are essential for thyroid hormone synthesis. Iodine and selenium interact. Pregnancy increases the maternal iodine requirement. We previously reported inadequate iodine status in pregnant Dutch women. Since little is known about their selenium intake, we investigated the iodine status and selenium intake in relation to iodine and selenium supplement use during pregnancy. Iodine status was established in 201 apparently healthy pregnant women as 24 h iodine excretion (24H-UIE; sufficient if median ≥225 µg), iodine concentration (24H-UIC; ≥150 µg/L) and iodine/creatinine ratio (24H-UICR; ≥150 µg/g). Selenium intake was calculated from 24 h selenium excretion. Iodine status in pregnancy proved insufficient (medians: 24H-UIE 185 µg; 24H-UIC 95 µg/L; 24H-UICR 141 µg/g). Only women taking 150 µg iodine/day were sufficient (median 24H-UIE 244 µg). Selenium intake was below the Estimated Average Requirement (EAR; 49 µg/day) in 53.8%, below the Recommended Dietary Allowance (RDA; 60 µg/day) in 77.4% and below the Adequate Intake (AI; 70 µg/day) in 88.7%. Combined inadequate iodine status and selenium intake <RDA was found in 61%. Women who want to become pregnant should, consistently with WHO and ETA recommendations, be advised to use a 150 µg iodine-containing supplement. Concomitant selenium supplementation should be added to this advice, at least in The Netherlands.
Collapse
|
32
|
Funes SC, Ríos M, Fernández-Fierro A, Rivera-Pérez D, Soto JA, Valbuena JR, Altamirano-Lagos MJ, Gómez-Santander F, Jara EL, Zoroquiain P, Roa JC, Kalergis AM, Riedel CA. Female offspring gestated in hypothyroxinemia and infected with human Metapneumovirus (hMPV) suffer a more severe infection and have a higher number of activated CD8+ T lymphocytes. Front Immunol 2022; 13:966917. [PMID: 36159799 PMCID: PMC9494552 DOI: 10.3389/fimmu.2022.966917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/18/2022] [Indexed: 11/26/2022] Open
Abstract
Maternal thyroid hormones (THs) are essential for the appropriate development of the fetus and especially for the brain. Recently, some studies have shown that THs deficiency can also alter the immune system development of the progeny and their ability to mount an appropriate response against infectious agents. In this study, we evaluated whether adult mice gestated under hypothyroxinemia (Hpx) showed an altered immune response against infection with human metapneumovirus (hMPV). We observed that female mice gestated under Hpx showed higher clinical scores after seven days of hMPV infection. Besides, males gestated under Hpx have higher lung viral loads at day seven post-infection. Furthermore, the female offspring gestated in Hpx have already reduced the viral load at day seven and accordingly showed an increased proportion of activated (CD71+ and FasL+) CD8+ T cells in the lungs, which correlated with a trend for a higher histopathological clinical score. These results support that T4 deficiency during gestation might condition the offspring differently in males and females, enhancing their ability to respond to hMPV.
Collapse
Affiliation(s)
- Samanta C. Funes
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Catóica, de Chile, Santiago, Chile
- Instituto Multidisciplinario de Investigaciones Biológicas-San Luis (IMIBIO-SL), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de San Luis (UNSL), San Luis, Argentina
| | - Mariana Ríos
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Catóica, de Chile, Santiago, Chile
| | - Ayleen Fernández-Fierro
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Catóica, de Chile, Santiago, Chile
| | - Daniela Rivera-Pérez
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Catóica, de Chile, Santiago, Chile
| | - Jorge A. Soto
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Catóica, de Chile, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - José R. Valbuena
- Departamento de Anatomía Patológica, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - María J. Altamirano-Lagos
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Catóica, de Chile, Santiago, Chile
| | - Felipe Gómez-Santander
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Catóica, de Chile, Santiago, Chile
| | - Evelyn L. Jara
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Catóica, de Chile, Santiago, Chile
- Departmento de Farmacología, Millennium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Pablo Zoroquiain
- Departamento de Anatomía Patológica, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Juan C. Roa
- Departamento de Anatomía Patológica, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M. Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Catóica, de Chile, Santiago, Chile
- Departamento de Endocrinología, Escuela de Medicina, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A. Riedel
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
- *Correspondence: Claudia A. Riedel,
| |
Collapse
|
33
|
Mechanisms of Sodium/Iodide Symporter-Mediated Mammary Gland Iodine Compensation during Lactation. Nutrients 2022; 14:nu14173592. [PMID: 36079849 PMCID: PMC9460413 DOI: 10.3390/nu14173592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
This research aimed to investigate the compensation mechanism of iodine deficiency and excess in the mammary gland during lactation. Female rats were divided into the low iodine group (LI), the normal iodine group (NI), the 10-fold high iodine group (10HI) and the 50-fold high iodine group (50HI). We measured the iodine levels in the urine, blood, milk, and mammary gland. The protein expression of sodium/iodide symporter (NIS), DPAGT1, and valosin-containing protein (VCP) in the mammary gland was also studied. The 24-hour urinary iodine concentration, serum total iodine concentration, serum non-protein-bound iodine concentration, breast milk iodine concentration, and mammary gland iodine content in the 50HI group were significantly higher than those in the NI group (p < 0.05). Compared with the NI group, NIS expression in the 50HI group significantly decreased (p < 0.05). DAPGT1 expression was significantly higher in the LI group than in the NI group (p < 0.05). The expression level of VCP was significantly increased in the 10HI and 50HI groups. In conclusion, milk iodine concentration is positively correlated with iodine intake, and the lactating mammary gland regulates the glycosylation and degradation of NIS by regulating DPAGT1 and VCP, thus regulating milk iodine level. However, the mammary gland has a limited role in compensating for iodine deficiency and excess.
Collapse
|
34
|
Yusuf Ali A, Inyang B, Koshy FS, George K, Poudel P, Chalasani R, Goonathilake MR, Waqar S, George S, Jean-Baptiste W, Mohammed L. Elements That Influence the Development of Attention Deficit Hyperactivity Disorder (ADHD) in Children. Cureus 2022; 14:e27835. [PMID: 35982754 PMCID: PMC9376034 DOI: 10.7759/cureus.27835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/09/2022] [Indexed: 12/27/2022] Open
Abstract
Various factors may have a role in the development of attention deficit hyperactivity disorder (ADHD). Although the specific pathophysiology of this disease is still not entirely understood, it is believed to be caused by a mix of genetic, maternal, dietary, and environmental factors. The effect of these factors can determine the severity of ADHD; for example, some of them are dose-dependent, but there is a typical pattern that all are known to be associated with either early childhood exposure or maternal exposure during pregnancy. Some factors share a similar mechanism of affecting pathways and increasing the risk of ADHD. ADHD is not a disorder that can be detected before symptoms appear in a child, making it more challenging to anticipate even if a child has been exposed to a known trigger. Environmental pollutants were investigated, and it was shown that there was a link between ADHD in childhood and exposure to pollutants throughout childhood or during pregnancy. It is well known that maternal health is a significant factor in the unborn child's development in many health aspects. The central nervous system (CNS) is a primary system that can suffer irreversible damage from health conditions, stress, depression, or specific nutritional deficiency when the pregnant mother is subjected to these conditions. Even though numerous studies have been conducted to investigate the probable causes of ADHD, with some of them having robust findings, no conclusive explanation can be provided to identify a definitive cause or a risk factor.
Collapse
Affiliation(s)
- Amina Yusuf Ali
- Pediatrics, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Bithaiah Inyang
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Feeba Sam Koshy
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Kitty George
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Prakar Poudel
- Internal Medicine, Chitwan Medical College of Medical Science, Chitwan, NPL.,Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Roopa Chalasani
- Research, California Institute of Behavioral Neurosciences & Psychology, fairfield, USA
| | - Mastiyage R Goonathilake
- Pediatrics/Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Sara Waqar
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Sheeba George
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Wilford Jean-Baptiste
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Lubna Mohammed
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| |
Collapse
|
35
|
A review of current knowledge about the importance of iodine among women of child-bearing age and healthcare professionals. J Nutr Sci 2022; 11:e56. [PMID: 35836700 PMCID: PMC9274385 DOI: 10.1017/jns.2022.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 11/29/2022] Open
Abstract
Iodine is required for thyroid hormone synthesis and fetal neurogenesis. Recent population studies in the United Kingdom (UK) have found iodine deficiency among schoolgirls, women of child-bearing age and pregnant women. This review explores knowledge and awareness of iodine among women of child-bearing age and healthcare professionals (HCPs) in the UK, set within a global context. We aimed to identify gaps in iodine knowledge in the current UK setting of iodine deficiency without iodine fortification and where iodine is not included in antenatal guidelines. The search terms ‘iodine knowledge’ and ‘iodine awareness’ were used to identify relevant papers. Iodine knowledge is poor among women of child-bearing age in the UK according to four studies using questionnaires and qualitative methods. They were unsure of dietary sources of iodine and were not consistently provided with relevant information from HCPs during clinical care. Midwives have been recognised as the main providers of dietary information during pregnancy and, although they recognised the importance of their role in providing nutrition advice, they did not feel equipped to do so and lacked confidence in addressing nutritional concerns. Globally, there was a similar lack of knowledge, however, this was somewhat improved by the inclusion of iodine in antenatal care guidelines. Midwives’ knowledge of iodine was poor, as was knowledge among women of child-bearing age. Improved HCP knowledge and effective communication of information to pregnant women and women planning to conceive may help to improve iodine status which is of particular concern in pregnancy.
Collapse
|
36
|
Ryu SA, Choi YJ, An H, Kwon HJ, Ha M, Hong YC, Hong SJ, Hwang HJ. Associations between Dietary Intake and Attention Deficit Hyperactivity Disorder (ADHD) Scores by Repeated Measurements in School-Age Children. Nutrients 2022; 14:nu14142919. [PMID: 35889876 PMCID: PMC9322602 DOI: 10.3390/nu14142919] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/13/2022] [Accepted: 07/15/2022] [Indexed: 11/16/2022] Open
Abstract
Attention deficit hyperactivity disorder (ADHD) is a common psychiatric disorder in school-age children and adolescents. However, the reported associations between ADHD and single nutrient intake are inconsistent. The aim of the study was to investigate the relationships between dietary intake changes and the prevalence of ADHD over time with repeat measurements using data from the Children Health and Environment Research (CHEER). To assess changes over time, we used data obtained in 2006 and 2008 (Phases 1 and 2). In this study, there were 2899 children aged 8 years or older in Phase 1 and 2120 children aged 9 years or older in Phase 2 from Korea, and the ADHD scores and dietary intake of 1733 children in Phases 1 and 2 were used in the final analysis. The YN group refers to children whose disease had improved in Phase 2, and the NY group refers to children diagnosed with ADHD in Phase 2. A notable within-group result was the increase in vegetable protein (p = 0.03) in the YN group. A between-group comparison showed that significant changes in nutrient intake could be confirmed most in the NY group, and the YN group tended to have a lower nutrient intake than the NY group. In the correlation of changes in nutrient intake and three subtypes (combined, AD, and HD), the total fat (p = 0.048) and animal protein (p = 0.099) showed a positive correlation with the prevalence of AD. Vegetable iron (p = 0.061 and p = 0.044, respectively), zinc (p = 0.022 and p = 0.007, respectively), vegetable protein (p = 0.074), and calcium (p = 0.057) had inhibitory effects on ADHD and its subtype. In conclusion, management of dietary and nutritional status should be considered to ameliorate ADHD and its subtypes in school-age children, and these relationships require further exploration in other settings.
Collapse
Affiliation(s)
- Su-a Ryu
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Korea; (S.-a.R.); (H.A.)
| | - Yean-Jung Choi
- Department of Food and Nutrition, Sahmyook University, Seoul 01795, Korea;
| | - Hyojin An
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Korea; (S.-a.R.); (H.A.)
| | - Ho-Jang Kwon
- Department of Preventive Medicine, Dankook University College of Medicine, Cheonan 31116, Korea; (H.-J.K.); (M.H.)
| | - Mina Ha
- Department of Preventive Medicine, Dankook University College of Medicine, Cheonan 31116, Korea; (H.-J.K.); (M.H.)
| | - Yun-Chul Hong
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 08826, Korea;
| | - Soo-Jong Hong
- Department of Pediatrics, Childhood Asthma Atopy Center, Humidifier Disinfectant Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea;
| | - Hyo-Jeong Hwang
- Department of Food and Nutrition, Sahmyook University, Seoul 01795, Korea;
- Correspondence: ; Tel.: +82-2-3399-1653; Fax: +82-2-3399-1655
| |
Collapse
|
37
|
Velasco I, Vila L, Goya M, Oleaga A, de la Calle M, Santamaria FJ. Resumen ejecutivo del documento de consenso SEEN-SEGO sobre el manejo de la disfunción tiroidea durante el embarazo. ENDOCRINOL DIAB NUTR 2022. [DOI: 10.1016/j.endinu.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
38
|
Prevalence of insufficient iodine intake in pregnancy worldwide: a systematic review and meta-analysis. Eur J Clin Nutr 2022; 76:703-715. [PMID: 34545212 DOI: 10.1038/s41430-021-01006-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 08/04/2021] [Accepted: 09/03/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND/OBJECTIVES Iodine deficiency in pregnant women is related to impaired foetal growth and development. The objective of this study was to estimate the prevalence of insufficient iodine intake in pregnant women from different regions of the world. SUBJECTS/METHODS Using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, five electronic databases and Google Scholar grey literature were searched until 10 April 2021. Two reviewers independently conducted article selection, data extraction, and assessment of the risk of bias. Meta-analyses with random effects, subgroup analyses, and meta-regressions were performed. RESULTS In total, 4639 observational articles were found, with 61 eligible for inclusion. The population consisted of 163,021 pregnant women adults and adolescents, and the overall prevalence of insufficient iodine intake was 53% (95% confidence interval [CI]: 47-60; I2 = 99.8%). Pregnant women who live in insufficient iodine status country had a higher prevalence (86%; 95% CI: 78-93; I² =97.0%) of inadequate iodine nutritional status than to those living in country considered sufficient (51%; 95% IC: 45-57; I² = 99.8%). CONCLUSION Despite the progress in iodine fortification policies and periodic monitoring of the iodine nutritional status of the population worldwide, salt iodination alone may not be sufficient to provide adequate iodine status to pregnant women. Thus, other actions may be necessary to improve the nutritional clinical care of pregnant group.
Collapse
|
39
|
Mayhew CE, Simonson KR, Ellsworth Bowers ER. Antepartum Care for Pregnant People with Overt Hypothyroidism, Subclinical Hypothyroidism, and Positive Thyroid Autoantibodies. J Midwifery Womens Health 2022; 67:295-304. [PMID: 35384264 DOI: 10.1111/jmwh.13306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 09/11/2021] [Accepted: 09/18/2021] [Indexed: 11/30/2022]
Abstract
Maternal thyroid hormones are critical for the growth and development of a healthy fetus. During pregnancy, maternal thyroid hormone production is increased to meet the demands of fetal growth. The purpose of this review is to provide clinicians with current evidence about possible adverse maternal and fetal effects of hypothyroidism in pregnancy, including the role of hypothyroidism in recurrent pregnancy loss. In addition, clinical presentation, evidence-based screening guidelines, and evidence-based treatments are discussed.
Collapse
Affiliation(s)
- Caitlin E Mayhew
- Nurse-Midwifery/Women's Health Nurse Practitioner and Women's Health Nurse Practitioner Programs, Georgetown University School of Nursing and Health Studies, Washington, DC
| | - Kristin R Simonson
- Nurse-Midwifery/Women's Health Nurse Practitioner and Women's Health Nurse Practitioner Programs, Georgetown University School of Nursing and Health Studies, Washington, DC
| | - Esther R Ellsworth Bowers
- Nurse-Midwifery/Women's Health Nurse Practitioner and Women's Health Nurse Practitioner Programs, Georgetown University School of Nursing and Health Studies, Washington, DC
| |
Collapse
|
40
|
Hisada A, Takatani R, Yamamoto M, Nakaoka H, Sakurai K, Mori C. Maternal Iodine Intake and Neurodevelopment of Offspring: The Japan Environment and Children's Study. Nutrients 2022; 14:nu14091826. [PMID: 35565793 PMCID: PMC9105063 DOI: 10.3390/nu14091826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/20/2022] [Accepted: 04/24/2022] [Indexed: 02/05/2023] Open
Abstract
Inadequate maternal iodine intake affects thyroid function and may impair fetal brain development. This study investigated the association between maternal iodine intake during pregnancy and neurodevelopmental delay in offspring at 1 and 3 years of age using a nationwide birth cohort: the Japan Environment and Children’s Study. We assessed dietary iodine intake during pregnancy using a food frequency questionnaire and child neurodevelopment using the Japanese translation of the Ages and Stages Questionnaire, Third Edition. The risk of delay (score below the cut-off value) for fine motor domain at 1 year of age was increased in the lowest quintile iodine intake group compared with the fourth quintile iodine intake group. The risk of delay for problem-solving at 1 year of age was increased in the lowest and second quintile iodine intake group and decreased in the highest quintile iodine intake group. The risk of delay for communication, fine motor, problem-solving, and personal–social domains at 3 years of age was increased in the lowest and second quintile iodine intake group compared with the fourth quintile iodine intake group, while the risk of delay for fine motor and problem-solving domains was decreased in the highest quintile iodine intake group. Low iodine intake levels in pregnancy may affect child neurodevelopment.
Collapse
Affiliation(s)
- Aya Hisada
- Center for Preventive Medical Sciences, Chiba University, 1–33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan; (R.T.); (M.Y.); (H.N.); (K.S.); (C.M.)
- Correspondence: ; Tel.: +81-4-3290-3896
| | - Rieko Takatani
- Center for Preventive Medical Sciences, Chiba University, 1–33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan; (R.T.); (M.Y.); (H.N.); (K.S.); (C.M.)
| | - Midori Yamamoto
- Center for Preventive Medical Sciences, Chiba University, 1–33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan; (R.T.); (M.Y.); (H.N.); (K.S.); (C.M.)
| | - Hiroko Nakaoka
- Center for Preventive Medical Sciences, Chiba University, 1–33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan; (R.T.); (M.Y.); (H.N.); (K.S.); (C.M.)
| | - Kenichi Sakurai
- Center for Preventive Medical Sciences, Chiba University, 1–33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan; (R.T.); (M.Y.); (H.N.); (K.S.); (C.M.)
| | - Chisato Mori
- Center for Preventive Medical Sciences, Chiba University, 1–33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan; (R.T.); (M.Y.); (H.N.); (K.S.); (C.M.)
- Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | | |
Collapse
|
41
|
Veyhe AS, Johannesen HL, Weihe P, Andersen S. Urine test strips and iodine contamination: a tricky trick in iodine nutrition surveys. Scandinavian Journal of Clinical and Laboratory Investigation 2022; 82:251-256. [PMID: 35416744 DOI: 10.1080/00365513.2022.2059699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE A recent report from the Faroe Islands suggested mild iodine deficiency among women aged 40 years and older. New preliminary results showed an average urinary iodine concentration of 457 µg/L. This spurious finding encouraged the present report. METHODS A subset of 17 consecutive pregnant women from an ongoing study provided an additional morning spot urine sample; one part was tested for a few seconds with a test strip for glucose, protein, and erythrocytes, and the other was left untouched. The women recorded the previous week's intake of iodine-rich foods. Additionally, 12 tap water samples were collected such that three samples were sealed immediately, the remaining were strip tested for 10, 30 and 60 s, respectively. Urine and water samples were analysed using the ceri/arsen method after alkaline ashing. RESULTS Median urinary iodine concentration (UIC) in pristine urine samples was 116 µg/L (IQR 79-204 µg/L; range 26-475 µg/L), and positively associated with iodine-rich food intake. UIC increase with test-strip dip varied from 10 to 94 times the non-dip value. In tap water, the pristine samples had an iodine concentration of 2-4 µg/L, which increased to 10,000 µg/L after 60 s. CONCLUSION Urine samples exposed to test strips can be contaminated within a few seconds leading to unreliable iodine results. Therefore, it is crucial that the study protocol clearly states the procedure for urine sample collection and handling, strict adherence to protocol, and that utensils used are dedicated to collecting urine to measure iodine.
Collapse
Affiliation(s)
- Anna Sofía Veyhe
- Department of Occupational Medicine and Public Health, The Faroese Hospital System, Torshavn, Faroe Islands.,Faculty of Health Science and Nursing, University of the Faroe Islands, Torshavn, Faroe Islands.,Center of Health Science, University of the Faroe Islands, Tórshavn, Faroe Islands
| | | | - Pál Weihe
- Department of Occupational Medicine and Public Health, The Faroese Hospital System, Torshavn, Faroe Islands.,Faculty of Health Science and Nursing, University of the Faroe Islands, Torshavn, Faroe Islands.,Center of Health Science, University of the Faroe Islands, Tórshavn, Faroe Islands
| | - Stig Andersen
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.,Arctic Health Research Centre, Aalborg University Hospital, Aalborg, Denmark.,Greenland Centre for Health Research, University of Greenland, Nuuk, Greenland
| |
Collapse
|
42
|
Rodriguez-Muñoz D, Sánchez Á, Pérez-Benavente S, Contreras-Jurado C, Montero-Pedrazuela A, Toledo-Castillo M, Gutiérrez-Hernández M, Rodrigues-Díez R, Folgueira C, Briones AM, Sabio G, Monedero-Cobeta I, Chávez-Coira I, Castejón D, Fernández-Valle E, Regadera J, Bautista JM, Aranda A, Alemany S. Hypothyroidism confers tolerance to cerebral malaria. SCIENCE ADVANCES 2022; 8:eabj7110. [PMID: 35385300 PMCID: PMC8985923 DOI: 10.1126/sciadv.abj7110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The modulation of the host's metabolism to protect tissue from damage induces tolerance to infections increasing survival. Here, we examined the role of the thyroid hormones, key metabolic regulators, in the outcome of malaria. Hypothyroidism confers protection to experimental cerebral malaria by a disease tolerance mechanism. Hypothyroid mice display increased survival after infection with Plasmodium berghei ANKA, diminishing intracranial pressure and brain damage, without altering pathogen burden, blood-brain barrier disruption, or immune cell infiltration. This protection is reversed by treatment with a Sirtuin 1 inhibitor, while treatment of euthyroid mice with a Sirtuin 1 activator induces tolerance and reduces intracranial pressure and lethality. This indicates that thyroid hormones and Sirtuin 1 are previously unknown targets for cerebral malaria treatment, a major killer of children in endemic malaria areas.
Collapse
Affiliation(s)
- Diego Rodriguez-Muñoz
- Departament of Metabolism and Cell Signaling, Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
| | - Ángela Sánchez
- Departament of Metabolism and Cell Signaling, Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
| | - Susana Pérez-Benavente
- Department of Biochemistry and Molecular Biology, Research Institute Hospital 12 de Octubre (Imas12), Universidad Complutense de Madrid, Madrid, Spain
| | - Constanza Contreras-Jurado
- Department of Endocrine and Nervous System Pathophysiology, Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
- Departamento de Bioquímica, Facultad de Medicina, Universidad Alfonso X El Sabio, Villanueva de la Cañada, Madrid, Spain
| | - Ana Montero-Pedrazuela
- Department of Endocrine and Nervous System Pathophysiology, Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
| | - Marta Toledo-Castillo
- Departament of Metabolism and Cell Signaling, Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
| | - María Gutiérrez-Hernández
- Departament of Metabolism and Cell Signaling, Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
| | - Raquel Rodrigues-Díez
- Departament of Pharmacology, Instituto de Investigación Hospital La Paz, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain
| | - Cintia Folgueira
- Departament of Myocardial Pathophysiology, Centro Nacional de Investigaciones Cardiovasculares, ISCIII, 28029 Madrid, Spain
| | - Ana M. Briones
- Departament of Pharmacology, Instituto de Investigación Hospital La Paz, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain
| | - Guadalupe Sabio
- Departament of Myocardial Pathophysiology, Centro Nacional de Investigaciones Cardiovasculares, ISCIII, 28029 Madrid, Spain
| | | | - Irene Chávez-Coira
- Department of Anatomy, Histology and Neuroscience, Universidad Autónoma de Madrid, Madrid, Spain
| | - David Castejón
- MNR Unit (CAI de Bioimagen), Universidad Complutense de Madrid, Madrid, Spain
| | | | - Javier Regadera
- Department of Anatomy, Histology and Neuroscience, Universidad Autónoma de Madrid, Madrid, Spain
| | - José M. Bautista
- Department of Biochemistry and Molecular Biology, Research Institute Hospital 12 de Octubre (Imas12), Universidad Complutense de Madrid, Madrid, Spain
| | - Ana Aranda
- Department of Endocrine and Nervous System Pathophysiology, Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
- Biomedicine Unit (Unidad Asociada al CSIC), Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), ISCIII, Madrid, Spain
- Corresponding author. (A.A.); (S.A.)
| | - Susana Alemany
- Departament of Metabolism and Cell Signaling, Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
- Biomedicine Unit (Unidad Asociada al CSIC), Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
- Corresponding author. (A.A.); (S.A.)
| |
Collapse
|
43
|
Li F, Wan S, Zhang L, Li B, He Y, Shen H, Liu L. A Meta-Analysis of the Effect of Iodine Excess on the Intellectual Development of Children in Areas with High Iodine Levels in their Drinking Water. Biol Trace Elem Res 2022; 200:1580-1590. [PMID: 34302270 DOI: 10.1007/s12011-021-02801-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/19/2021] [Indexed: 11/27/2022]
Abstract
The purpose of this meta-analysis is to comprehensively investigate the effect of iodine excess on children's intellectual development in areas with high iodine levels in their drinking water. We systematically searched the electronic databases and identified 17 publications (16 in Chinese and 1 in English) on the effect of iodine excess on children's intelligence published between January 31, 1985, and January 31, 2020. This meta-analysis included 14,794 children from 28 studies. The results showed that compared with the control group, the intelligence level of children in the high iodine group reduced significantly by 1.64 points (WMD=-1.64; 95% CI (-3.225, -0.049), Z=2.02, P<0.05). Subgroup analyses were performed according to the water iodine concentration, water iodine concentration of the control group, the intelligence test method, and regions of China (i.e., north and south). We noted that when the water iodine concentration was <300μg/L, 301-600μg/L, 600.1-900μg/L, and >900μg/L, the intelligence level of the high iodine groups decreased by varying degrees, although not statistically significant (all P>0.05). The water iodine concentration of the control group was divided into two groups (<150 μg/L and <100 μg/L) and the heterogeneity analysis showed that the heterogeneity of the control group decreased significantly when the concentration of water iodine was <150 μg/L, I2 = 67.3%, P<0.001, which indicated a potential source of heterogeneity. The analyses by test method showed that among the studies which used the China Joint Raven's test, the intelligence level of children in the high iodine group was 0.86 points lower than in the control group (P>0.05). Conversely, we observed that among the studies which used the China Binet intelligence test and the binaphthalene intelligence test of Tanzhida in Japan to evaluate children's intelligence level, the intelligence level of children in the high iodine groups was significantly lower (3.65 points and 8.0 points, respectively) compared with the control groups (P<0.05). The analysis of the regions of China demonstrated that whereas the reduction in children's intelligence level from excess iodine in the north of China was not statistically significant (WMD=-0.16, 95% CI (-2.18, 1.85), P>0.05), the association was statistically significant in the southern part of China (WMD=-1.86, 95% CI (-3.57, -0.09), P<0.05). This study found that high iodine concentration was statistically significantly associated with a decline in intelligence level in children. Comparatively, the intelligence level of children who were exposed to high iodine concentrations reduced significantly by 1.64 points. These findings have public health implications.
Collapse
Affiliation(s)
- Fan Li
- National Health commission &Education Bureau of Heilongjiang province, Key laboratory and Etiology and Epidemiology, Key Laboratory of Trace Elements and Human Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
| | - Siyuan Wan
- National Health commission &Education Bureau of Heilongjiang province, Key laboratory and Etiology and Epidemiology, Key Laboratory of Trace Elements and Human Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
- Department of Preventive Medicine, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Li Zhang
- National Health commission &Education Bureau of Heilongjiang province, Key laboratory and Etiology and Epidemiology, Key Laboratory of Trace Elements and Human Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
| | - Baoxiang Li
- National Health commission &Education Bureau of Heilongjiang province, Key laboratory and Etiology and Epidemiology, Key Laboratory of Trace Elements and Human Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
| | - Yanhong He
- National Health commission &Education Bureau of Heilongjiang province, Key laboratory and Etiology and Epidemiology, Key Laboratory of Trace Elements and Human Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
| | - Hongmei Shen
- National Health commission &Education Bureau of Heilongjiang province, Key laboratory and Etiology and Epidemiology, Key Laboratory of Trace Elements and Human Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China
| | - Lixiang Liu
- National Health commission &Education Bureau of Heilongjiang province, Key laboratory and Etiology and Epidemiology, Key Laboratory of Trace Elements and Human Health, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, China.
| |
Collapse
|
44
|
Hasselberg AE, Nøstbakken OJ, Aakre I, Madsen L, Atter A, Steiner-Asiedu M, Kjellevold M. Nutrient and contaminant exposure from smoked European anchovy (Engraulis encrasicolus): Implications for children's health in Ghana. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
45
|
Witard OC, Bath SC, Dineva M, Sellem L, Mulet-Cabero AI, van Dongen LH, Zheng JS, Valenzuela C, Smeuninx B. Dairy as a Source of Iodine and Protein in the UK: Implications for Human Health Across the Life Course, and Future Policy and Research. Front Nutr 2022; 9:800559. [PMID: 35223949 PMCID: PMC8866650 DOI: 10.3389/fnut.2022.800559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/11/2022] [Indexed: 12/03/2022] Open
Abstract
This narrative review summarizes key concepts in dairy nutrition for supporting human health throughout the life course. Milk and dairy products have been a staple component of our diet for thousands of years and provide a wide range of important nutrients that are otherwise difficult to obtain from dairy-free diets. In this review, we provide a broad perspective on the nutritional roles of iodine and dairy protein in supporting human health during pregnancy and early life, childhood and adolescence, mid- and later-life. New methodologies to identify biomarkers of dairy intake via high-throughput mass spectrometry are discussed, and new concepts such as the role of the food matrix in dairy nutrition are introduced. Finally, future policy and research related to the consumption of dairy and non-dairy alternatives for health are discussed with a view to improving nutritional status across the lifespan.
Collapse
Affiliation(s)
- Oliver C. Witard
- Centre for Human and Applied Physiological Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- *Correspondence: Oliver C. Witard
| | - Sarah C. Bath
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Mariana Dineva
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Laury Sellem
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Science, University of Reading, Reading, United Kingdom
| | - Ana-Isabel Mulet-Cabero
- Food Innovation and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich, United Kingdom
| | - Laura H. van Dongen
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, Netherlands
| | - Ju-Sheng Zheng
- School of Life Sciences, Westlake University, Hangzhou, China
| | - Carina Valenzuela
- Faculty of Medicine, School of Human Development and Health, University of Southampton, Southampton, United Kingdom
| | - Benoit Smeuninx
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| |
Collapse
|
46
|
Amouzegar A, Pearce EN, Mehran L, Lazarus J, Takyar M, Azizi F. TPO antibody in euthyroid pregnant women and cognitive ability in the offspring: a focused review. J Endocrinol Invest 2022; 45:425-431. [PMID: 34515961 DOI: 10.1007/s40618-021-01664-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 08/13/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE A link between maternal thyroid dysfunction during pregnancy and the risk of cognitive and behavioral problems in the offspring has previously been established; however, the potential effects of maternal thyroid autoimmunity on neurodevelopment in the absence of maternal hypothyroidism are less clear. The present review aims to highlight the gaps in knowledge in this regard and provide a thorough assessment of relevant literature. METHOD Related keywords searched in MEDLINE, Web of Science, and Scopus till January 2021. RESULTS There is some evidence that neuropsychological and intellectual developments of offspring are adversely affected by maternal thyroid autoimmunity, although the results of available studies are not concordant. The tools and measurements that have been applied in different studies to assess neurodevelopment or IQ vary widely and the children born to mothers with thyroid autoimmunity have been assessed at different chronological stages of life. Such variations may explain some of the differences across studies. In addition, the definition of thyroid autoimmunity has been based on TPOAb cut points provided by manufacturers in most cases, but it is preferable to define these values based on age, trimester, and method-specific reference ranges. CONCLUSION Well-designed studies are needed to assess verbal and non-verbal neurocognition of offspring born to mothers with autoimmune thyroid disease before or during pregnancy.
Collapse
Affiliation(s)
- A Amouzegar
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 19395-4763, Tehran, Iran
| | - E N Pearce
- Section of Endocrinology, Diabetes and Nutrition, Boston University School of Medicine, 88 East Newton Street, Evans 201, Boston, MA, 02118, USA
| | - L Mehran
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 19395-4763, Tehran, Iran
| | - J Lazarus
- Thyroid Research Group, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, UK
| | - M Takyar
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 19395-4763, Tehran, Iran
| | - F Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, 19395-4763, Tehran, Iran.
| |
Collapse
|
47
|
Li J, He Y, Ren B, Zhang Z, Meng F, Zhang X, Zhou Z, Li B, Li F, Liu L, Shen H. The Thyroid Condition and Residual Clinical Signs in 31 Existing Endemic Neurological Cretins After 42 Years of Iodine Supplementation in China. Front Endocrinol (Lausanne) 2022; 13:911487. [PMID: 35898470 PMCID: PMC9309213 DOI: 10.3389/fendo.2022.911487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 06/08/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUD Endemic cretinism is the most severe manifestation among the iodine deficiency-related disorders. The clinical status of the cretins may be modified subsequently by the duration and severity of the disease. We aimed to reassess the clinical status and thyroid function of 31 surviving "neurological cretins" after 42 years of iodine supplementation in a historically severely iodine deficiency area of China. METHODS It was a cross-sectional study in design and we investigated all 31 surviving neurological cretins and 85 controls. A detailed neurological examination was conducted on each patients. All the participants were given a questionnaire and underwent B-mode ultrasonography of the thyroid. The serum levels of thyroid hormones, thyroid antibodies, serum iodine concentration (SIC) and urine iodine concentration (UIC) were measured. RESULTS The neurological cretins had shorter stature than that of the control. Neurological damage is still present in patients with cretinism. The prevalence of subclinical hypothyroidism and thyroid nodule in the cretins was significantly higher (χ2 =4.766, P=0.029 and χ2 =17.077, P<0.0001, respectively) compared with the control. After adjusting for confounding factors, endemic neurocretinism was found to be an independent risk factor for subclinical hypothyroidism (OR=4.412; 95% CI: 1.358-14.334; P=0.014) and thyroid nodule (OR=6.433; 95% CI: 2.323-17.816; P<0.0001). CONCLUSIONS Iodine supplementation after birth does not reverse the neurological damage that results from maternal/foetal hypothyroidism in utero and is subsequently manifested as neurological cretinism. There is a cross-sectional association between endemic neurocretinism and subclinical hypothyroidism and thyroid nodule.
Collapse
Affiliation(s)
- Jianshuang Li
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
| | - Yanhong He
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
| | - Bingxuan Ren
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
| | - Zhaojun Zhang
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
| | - Fangang Meng
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
| | - Xiaoye Zhang
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
| | - Zheng Zhou
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
| | - Baoxiang Li
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
| | - Fan Li
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
| | - Lixiang Liu
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
- *Correspondence: Hongmei Shen, ; Lixiang Liu,
| | - Hongmei Shen
- Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University, Harbin City, China
- National Health Commission and Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin, China
- *Correspondence: Hongmei Shen, ; Lixiang Liu,
| |
Collapse
|
48
|
Tian W, Yan W, Liu Y, Zhou F, Wang H, Sun W. The Status and Knowledge of Iodine among Pregnant Women in Shanghai. Biol Trace Elem Res 2021; 199:4489-4497. [PMID: 33462796 DOI: 10.1007/s12011-021-02587-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/10/2021] [Indexed: 11/27/2022]
Abstract
Iodine plays an important role in thyroid function. However, in daily practices, people lack the related details including the knowledge concerned iodine usage, attitudes towards it, and practice among pregnant women. The aim of the present study is to assess the iodine status of pregnant women in Shanghai, and their knowledge regarding iodine, with the goal of investigating the relationship between iodine and thyroid function during pregnancy. This is a cross-sectional study. We recruited 3 groups of participants including 145 pregnant women (12-16 weeks gestation), 101 pregnant women (24-28 weeks gestation), and 108 pregnant women (34-38 weeks gestation). Iodine status and dietary intake were calculated from 24-h urinary iodine concentration (UIC). Knowledge regarding iodine was collected through a questionnaire. We additionally examined TSH, FT3, FT4, and TPOAb of the participants. The median of UIC of the 354 pregnant women was 119.2 μg/L, and 68.9% had urinary iodine levels below 150 μg/L. The proportion of daily iodized salt consumption in pregnant women was only 78.0%. The median UIC of the pregnant women who had consumed iodized salt was significantly higher than that of the pregnant women without iodized salt intake (Z = - 5.087, P < 0.001). Pregnant women in weeks 34-38 with a high level of knowledge had significantly lower TSH levels than those with low knowledge level (P = 0.046). Among the 349 pregnant women, few were aware of the harm to the fetus (8.3%). Significant differences were found in the scores for the knowledge level of women with different educational levels (Z = - 5.413, P < 0.001). Pregnant women in Shanghai have mild iodine deficiency. Approaches to improve iodine status among pregnant women in Shanghai include raising their awareness of iodine intake and changing their dietary habits. Otherwise, the risk of iodine deficiency in pregnant women may continue to increase.
Collapse
Affiliation(s)
- Wenxia Tian
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- Shanghai Municipal Key Clinical Specialty, Shanghai, China
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wenqing Yan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Yang Liu
- Obstetrics and Gynecology, Shanghai Sixth People's Hospital East Campus, Shanghai, China
| | - Fangfang Zhou
- Obstetrics and Gynecology, Shanghai Sixth People's Hospital East Campus, Shanghai, China
| | - Haixia Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Wenguang Sun
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.
- Shanghai Municipal Key Clinical Specialty, Shanghai, China.
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| |
Collapse
|
49
|
Tachibana M, Miyoshi Y, Fukui M, Onuma S, Fukuoka T, Satomura Y, Yasuda K, Kimura T, Bessho K, Ozono K. Urinary iodine and thyroglobulin are useful markers in infants suspected of congenital hypothyroidism based on newborn screening. J Pediatr Endocrinol Metab 2021; 34:1411-1418. [PMID: 34388329 DOI: 10.1515/jpem-2021-0205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 07/22/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Iodine deficiency and excess both cause thyroid dysfunction. Few data describe the relationship between iodine status and outcomes of congenital hypothyroidism (CH) in iodine-sufficient areas. We investigated urinary iodine (UI) concentration and its relationship with the clinical course of CH. METHODS We reviewed and retrospectively analyzed patients with positive newborn screening (NBS) for CH from January 2012 to June 2019 in Japan, obtaining UI and UI-urine creatinine ratio (UI/Cr), serum TSH, free T4, free T3 and thyroglobulin (Tg) at the first visit, TSH at NBS, levothyroxine (LT4) dose, and subsequent doses. A UI value of 100-299 μg/L was considered adequate. RESULTS Forty-eight patients were included. Median UI and UI/Cr were 325 μg/L and 3,930 µg/gCr, respectively. UI was high (≥300 μg/L) in 26 (54%) and low (≤99 μg/L) in 11 (23%). LT4 was administered to 34 patients. Iodine status was not related to the need for treatment. We found a U-shaped relationship between Tg and UI/Cr. Patients with high Tg (≥400 ng/mL) and abnormal UI levels required significantly lower LT4 doses (≤20 µg/day) at three years of age. Even if they showed severe hypothyroidism initially, they did not need subsequent dose increments. CONCLUSIONS Abnormal UI levels with Tg elevation were associated with lower LT4 dose requirements. The evaluation of iodine status and Tg concentrations were considered useful in patients suspected of CH.
Collapse
Affiliation(s)
- Makiko Tachibana
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoko Miyoshi
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.,Department of Health and Nutrition, Faculty of Health and Nutrition, Osaka Shoin Women's University, Osaka, Japan
| | - Miho Fukui
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shinsuke Onuma
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomoya Fukuoka
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshinori Satomura
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kie Yasuda
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takeshi Kimura
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kazuhiko Bessho
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| |
Collapse
|
50
|
Veisa V, Kalere I, Zake T, Strele I, Makrecka-Kuka M, Upmale-Engela S, Skesters A, Rezeberga D, Lejnieks A, Pudule I, Grinberga D, Velika B, Dambrova M, Konrade I. Assessment of Iodine and Selenium Nutritional Status in Women of Reproductive Age in Latvia. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:medicina57111211. [PMID: 34833429 PMCID: PMC8622847 DOI: 10.3390/medicina57111211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 10/26/2021] [Accepted: 11/01/2021] [Indexed: 12/12/2022]
Abstract
Background and Objectives: Adequate dietary intake of iodine and selenium is essential during pregnancy. While iodine is vital for maternal thyroid function and fetal development, selenium contributes to the regulation of thyroid function and thyroid autoimmunity. This study aimed to assess the consumption of iodine- and selenium-containing products by women of reproductive age and the iodine and selenium nutritional status of pregnant women in Latvia. Materials and Methods: Population health survey (2010–2018) data were used to characterize dietary habits in women of reproductive age. Additionally, 129 pregnant women in the first trimester were recruited; they completed a questionnaire and were tested for thyroid function, urinary iodine concentration (UIC), and serum selenium and selenoprotein P levels. Results: The use of some dietary sources of iodine (e.g., milk and dairy products) and selenium (e.g., bread) has decreased in recent years. Less than 10% of respondents reported the use of iodized salt. The use of supplements has become more common (reported by almost 50% of respondents in 2018). Dietary habits were similar in pregnant women, but the use of supplements was even higher (almost 70%). Nevertheless, most supplements used in pregnancy had insufficient contents of iodine and selenium. Thyroid function was euthyreotic in all women, but 13.9% of participants had a thyroid peroxidase antibodies (TPO-ab) level above 60 IU/mL. The median UIC (IQR) was 147.2 (90.0–248.1) μg/gCr, and 52.8% of pregnant women had a UIC below 150 μg/gCr. The mean selenium (SD) level was 101.5 (35.6) μg/L; 30.1% of women had a selenium level below 80 μg/L. The median selenoprotein P level was 6.9 (3.1–9.0) mg/L. Conclusions: Iodine nutrition in Latvian population of pregnant women was near the lower limit of adequate and a third of the population had a selenium deficiency. Supplements were frequently used, but most did not contain the recommended amounts of iodine and selenium.
Collapse
Affiliation(s)
- Vija Veisa
- Department of Obstetrics and Gynecology, Riga Stradins University, LV-1007 Riga, Latvia;
- Correspondence: ; Tel.: +371-26442100
| | - Ieva Kalere
- Department of Internal Disease, Riga Stradins University, LV-1007 Riga, Latvia; (I.K.); (T.Z.); (S.U.-E.); (A.L.); (M.D.); (I.K.)
| | - Tatjana Zake
- Department of Internal Disease, Riga Stradins University, LV-1007 Riga, Latvia; (I.K.); (T.Z.); (S.U.-E.); (A.L.); (M.D.); (I.K.)
| | - Ieva Strele
- Institute of Occupational Safety and Environmental Health, Riga Stradins University, LV-1007 Riga, Latvia;
| | | | - Sabine Upmale-Engela
- Department of Internal Disease, Riga Stradins University, LV-1007 Riga, Latvia; (I.K.); (T.Z.); (S.U.-E.); (A.L.); (M.D.); (I.K.)
- Riga East University Hospital, LV-1038 Riga, Latvia
| | - Andrejs Skesters
- Scientific Laboratory of Biochemistry, Riga Stradins University, LV-1007 Riga, Latvia;
| | - Dace Rezeberga
- Department of Obstetrics and Gynecology, Riga Stradins University, LV-1007 Riga, Latvia;
| | - Aivars Lejnieks
- Department of Internal Disease, Riga Stradins University, LV-1007 Riga, Latvia; (I.K.); (T.Z.); (S.U.-E.); (A.L.); (M.D.); (I.K.)
- Riga East University Hospital, LV-1038 Riga, Latvia
| | - Iveta Pudule
- Centre for Disease Prevention and Control, LV-1005 Riga, Latvia; (I.P.); (D.G.); (B.V.)
| | - Daiga Grinberga
- Centre for Disease Prevention and Control, LV-1005 Riga, Latvia; (I.P.); (D.G.); (B.V.)
| | - Biruta Velika
- Centre for Disease Prevention and Control, LV-1005 Riga, Latvia; (I.P.); (D.G.); (B.V.)
| | - Maija Dambrova
- Department of Internal Disease, Riga Stradins University, LV-1007 Riga, Latvia; (I.K.); (T.Z.); (S.U.-E.); (A.L.); (M.D.); (I.K.)
- Latvian Institute of Organic Synthesis, LV-1006 Riga, Latvia;
| | - Ilze Konrade
- Department of Internal Disease, Riga Stradins University, LV-1007 Riga, Latvia; (I.K.); (T.Z.); (S.U.-E.); (A.L.); (M.D.); (I.K.)
- Riga East University Hospital, LV-1038 Riga, Latvia
| |
Collapse
|