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Wanapat M, Prachumchai R, Dagaew G, Matra M, Phupaboon S, Sommai S, Suriyapha C. Potential use of seaweed as a dietary supplement to mitigate enteric methane emission in ruminants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 931:173015. [PMID: 38710388 DOI: 10.1016/j.scitotenv.2024.173015] [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: 01/03/2024] [Revised: 05/03/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024]
Abstract
Seaweeds or marine algae exhibit diverse morphologies, sizes, colors, and chemical compositions, encompassing various species, including red, green, and brown seaweeds. Several seaweeds have received increased research attention and application in animal feeding investigations, particularly in ruminant livestock, due to their higher yield and convenient harvestability at present. Recent endeavors encompassing both in vitro and in vivo experiments have indicated that many seaweeds, particularly red seaweed (Asparagopsis taxiformis and Asparagopsis armata), contain plant secondary compounds, such as halogenated compounds and phlorotannins, with the potential to reduce enteric ruminal methane (CH4) emissions by up to 99 % when integrated into ruminant diets. This review provides an encompassing exploration of the existing body of knowledge concerning seaweeds and their impact on rumen fermentation, the toxicity of ruminal microbes, the health of animals, animal performance, and enteric ruminal CH4 emissions in both in vitro and in vivo settings among ruminants. By attaining a deeper comprehension of the implications of seaweed supplementation on rumen fermentation, animal productivity, and ruminal CH4 emissions, we could lay the groundwork for devising innovative strategies. These strategies aim to simultaneously achieve environmental benefits, reduce greenhouse gas emissions, enhance animal efficiency, and develop aquaculture and seaweed production systems, ensuring a high-quality and consistent supply chain. Nevertheless, future research is essential to elucidate the extent of the effect and gain insight into the mode of action.
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Affiliation(s)
- Metha Wanapat
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Rittikeard Prachumchai
- Division of Animal Science, Faculty of Agricultural Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani 12130, Thailand
| | - Gamonmas Dagaew
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Maharach Matra
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Srisan Phupaboon
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Sukruthai Sommai
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chaichana Suriyapha
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand.
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Wang Y, Tian X, Song Q, Wang W, Guo X, Cui T, Pan Z, Chen Y, Chen W, Tan L, Zhang W. Application and Comparison of Different Regression Models in Iodine Balance Experiment on Women of Childbearing Age and Pregnant Women. Biol Trace Elem Res 2024; 202:2474-2487. [PMID: 37807000 DOI: 10.1007/s12011-023-03867-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023]
Abstract
The iodine balance experiment is a traditional approach to evaluate the physiological requirement for iodine, while the simple linear regression model (SLM) and the mixed effects model (MEM) are two primary methods used to analyze iodine balance experiments. In the present study, we aimed to compare the effects of these two regression models on the evaluation of iodine balance experiments to investigate appropriate valuation methods. By constructing SLM and MEM, zero iodine balance values (IBV) were determined, and the evaluation effects were compared. No changes were made to the experimental data for women of childbearing age, and cutoff values of 600 µg/day and 1000 µg/day, respectively, were chosen for further processing of the experimental data for pregnant women. Equation combinations 1-3 (EC1-3) were obtained by fitting SLM, and zero IBV were calculated as 110.26 µg/day, 333.06 µg/day, and 434.84 µg/day, respectively. EC4-6 were obtained by fitting MEM, and zero IBV were calculated as 110.44 µg/day, 335.79 µg/day, and 418.06 µg/day, respectively. The inclusion of inter-measurement variation as a random factor in the MEM yielded EC7-8, which reduced the test power of the iodine balance experiment on women of childbearing age. Our study suggested that when experimental conditions were tightly controlled, with fewer uncertainties or significant influences, computationally straightforward and well-understood SLM was preferred. If some uncertain factors might cause large changes in the experimental results, it was advised to use a more "conservative" MEM to calculate the zero IBV. ClinicalTrials.gov Identifier: Registered at Clinicaltrials.gov, NCT03279315 (17th September 2017, retrospectively registered), NCT03710148 (18th October 2018, retrospectively registered).
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Affiliation(s)
- Yu Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
| | - Xiaoxiao Tian
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
- Tianjin Third Central Hospital Nutrition Department, Tianjin, China
| | - Qiuyi Song
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
| | - Wenqiang Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
| | - Xiaohui Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
- Tianjin Nankai District Center for Disease Control and Prevention, Tianjin, China
| | - Tingkai Cui
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
| | - Ziyun Pan
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
| | - Yongjie Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Wen Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
| | - Long Tan
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China.
| | - Wanqi Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, China
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Morabbi A, Karimian M. Trace and essential elements as vital components to improve the performance of the male reproductive system: Implications in cell signaling pathways. J Trace Elem Med Biol 2024; 83:127403. [PMID: 38340548 DOI: 10.1016/j.jtemb.2024.127403] [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: 10/02/2023] [Revised: 01/02/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024]
Abstract
Successful male fertilization requires the main processes such as normal spermatogenesis, sperm capacitation, hyperactivation, and acrosome reaction. The progress of these processes depends on some endogenous and exogenous factors. So, the optimal level of ions and essential and rare elements such as selenium, zinc, copper, iron, manganese, calcium, and so on in various types of cells of the reproductive system could affect conception and male fertility rates. The function of trace elements in the male reproductive system could be exerted through some cellular and molecular processes, such as the management of active oxygen species, involvement in the action of membrane channels, regulation of enzyme activity, regulation of gene expression and hormone levels, and modulation of signaling cascades. In this review, we aim to summarize the available evidence on the role of trace elements in improving male reproductive performance. Also, special attention is paid to the cellular aspects and the involved molecular signaling cascades.
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Affiliation(s)
- Ali Morabbi
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | - Mohammad Karimian
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran.
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Zhou S, Zhou C, Xie J, Luo F, Yao N. Iodine status of school-aged children in the changing context of universal salt iodization program during 1997-2018 in Chongqing, China. J Trace Elem Med Biol 2024; 81:127328. [PMID: 37918275 DOI: 10.1016/j.jtemb.2023.127328] [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: 02/23/2023] [Revised: 06/06/2023] [Accepted: 10/21/2023] [Indexed: 11/04/2023]
Abstract
OBJECTIVE To illustrate the changes of iodized salt usage, goiter rate of school-aged children and median urinary iodine concentration (MUIC) of school-aged children in Chongqing for the last 21 years. This study aims to estimate the variational provincial status of iodine nutrition and provide scientific evidence for fine-tuning and adaptation of the current program. METHODS Different number of families and school children aged 8-10 years from Chongqing during 1997-2018 participated in the study. UIC and iodine content in table salt were measured. Thyroid volumes of students were examined and goiter prevalence was calculated across years. RESULTS The median iodine content of table salt was negatively associated with years(r = -0.727, P < 0.01). The MUIC were decreased annually (ranged between 200 and 300 μg/L) and was negatively associated with year(r = -0.831, P < 0.01). Goiter of school-aged children in Chongqing was decreased from the highest rate of 23.58% in 1999 to 1.62% in 2018(Cochran-Armitage Trend Test: χ2=-30.695, P < 0.01). Thyroid volume were negatively associated with years(r = -0.962, P < 0.01) and had a positive relationship with MUIC 1997-2018 (r = 0.862, P < 0.01). CONCLUSIONS The consumption of adequately iodized salt can eliminate Iodine deficiency disorders (IDD) in children, but possible excessive iodine intake from salt could result in high urinary iodine excretion and even goiter. A systematic, well-designed and continual program monitoring is essential to ensure the adequacy of iodine fortification levels and to regularly change the iodine concentration in household table salt.
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Affiliation(s)
- Shuang Zhou
- Chongqing Center for Disease Control and Prevention, Chongqing 400042, PR China
| | - Chunbei Zhou
- Chongqing Center for Disease Control and Prevention, Chongqing 400042, PR China
| | - Jun Xie
- Chongqing Center for Disease Control and Prevention, Chongqing 400042, PR China
| | - Fei Luo
- Chongqing Center for Disease Control and Prevention, Chongqing 400042, PR China
| | - Ning Yao
- Chongqing Center for Disease Control and Prevention, Chongqing 400042, PR China; Department of Health Statistics, Army Medical University, Chongqing 400038, PR China.
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Gunnarsdóttir I, Brantsæter AL. Iodine: a scoping review for Nordic Nutrition Recommendations 2023. Food Nutr Res 2023; 67:10369. [PMID: 38187800 PMCID: PMC10770700 DOI: 10.29219/fnr.v67.10369] [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: 09/13/2021] [Revised: 04/27/2022] [Accepted: 11/10/2023] [Indexed: 01/09/2024] Open
Abstract
Iodine is essential for the synthesis of the thyroid hormones thyroxine (T4) and triiodothyronine (T3). As in many other parts of the world, insufficient iodine intake and consequently insufficient iodine status is a public health challenge in the Nordic and Baltic countries. The main dietary sources of iodine in the Nordic and Baltic countries include cow's milk, saltwater fish, eggs, products containing iodised salt, and iodised table salt. Only Denmark (DK), Finland (FI) and Sweden (SE) have implemented mandatory (DK) or voluntary (SE, FI) salt iodisation. New data, as well as recent studies from the Nordic and Baltic countries, strengthen the evidence that the main health challenges related to insufficient iodine intake remain thyroid function and thyroid disease, mental development, and cognitive function. Excessive intakes can also cause hyperthyroidism, autoimmune thyroid disease, and thyroid cancer.
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Affiliation(s)
- Ingibjörg Gunnarsdóttir
- Faculty of Food Science and Nutrition, University of Iceland, Reykjavik, Iceland
- Unit for Nutrition Research, Landspitali National University Hospital, Reykjavik, Iceland
| | - Anne Lise Brantsæter
- Department of Food Safety, Division of Climate and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
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Lin Z, Lu C, Teng D, Sun Y, Liu T, Li Y, Shan Z, Teng W. Influencing Factors and New Reference Intervals of Adult Thyroid Volume in Iodine-Sufficient Areas of China. Biol Trace Elem Res 2023; 201:5652-5661. [PMID: 37121984 PMCID: PMC10620313 DOI: 10.1007/s12011-023-03635-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/15/2023] [Indexed: 05/02/2023]
Abstract
The diagnosis of goiter is based on the thyroid volume measured by ultrasound in which iodine plays an important role. The purpose of this study was to evaluate the factors that affect thyroid volume and update the reference range of thyroid volume to provide a new basis for the diagnosis and treatment of goiter. A study population from mainland China was evaluated in the Thyroid disorders, Iodine status and Diabetes Epidemiological (TIDE) study. Thyroid size was measured by ultrasound, and thyroid volume was calculated. A quantile regression model was used to analyze the influence of related factors on the thyroid volume at each percentile. The median urinary iodine concentration (UIC) was 185.54 μg/l. The quantile regression model suggested that body surface area (BSA) and thyroid-stimulating hormone (TSH) were positive and negative factors for thyroid volume, respectively (p < 0.01). Excess iodine reduces the median and lower limits of thyroid volume. In iodine-sufficient areas, smoking is no longer a risk factor. The reference value range of thyroid volume stratified by sex was 3.92-19.06 ml for males and 3.1-16.17 ml for females. The maximum reference ranges for stratification by sex and BSA were 4.25-20.98 ml for men and 3.44-18.31 ml for women. The iodine nutrition level of the population in mainland China is sufficient. Iodine has the potential to alter the effect of certain factors on thyroid volume and effect is not regional. The new reference interval of adult thyroid volume based on sex and BSA has been updated, which can be used as a reliable reference for updating the diagnostic criteria of endemic goiter.
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Affiliation(s)
- Zheyu Lin
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China, 110001
- Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, No. 155, Nanjing Bei Street, Shenyang, 110001, People's Republic of China
| | - Cihang Lu
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China, 110001
- Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, No. 155, Nanjing Bei Street, Shenyang, 110001, People's Republic of China
| | - Di Teng
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China, 110001.
- Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, No. 155, Nanjing Bei Street, Shenyang, 110001, People's Republic of China.
| | - Ying Sun
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China, 110001
- Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, No. 155, Nanjing Bei Street, Shenyang, 110001, People's Republic of China
| | - Tingting Liu
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China, 110001
- Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, No. 155, Nanjing Bei Street, Shenyang, 110001, People's Republic of China
| | - Yongze Li
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China, 110001
- Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, No. 155, Nanjing Bei Street, Shenyang, 110001, People's Republic of China
| | - Zhongyan Shan
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China, 110001
- Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, No. 155, Nanjing Bei Street, Shenyang, 110001, People's Republic of China
| | - Weiping Teng
- Department of Endocrinology and Metabolism and the Institute of Endocrinology, The NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China, 110001
- Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, No. 155, Nanjing Bei Street, Shenyang, 110001, People's Republic of China
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Krizsan SJ, Ramin M, Chagas JCC, Halmemies-Beauchet-Filleau A, Singh A, Schnürer A, Danielsson R. Effects on rumen microbiome and milk quality of dairy cows fed a grass silage-based diet supplemented with the macroalga Asparagopsis taxiformis. FRONTIERS IN ANIMAL SCIENCE 2023. [DOI: 10.3389/fanim.2023.1112969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
The objective was to determine the effects on rumen microbiome and milk quality of reducing the methane (CH4) produced from enteric fermentation by the addition of Asparagopsis taxiformis (AT) to the diets of dairy cows. Six Nordic Red cows at 122 ± 13.7 (mean ± SD) days in milk, of parity 2.7 ± 0.52 and producing 36 kg ± 2.5 kg milk per day at the start of the trial were divided into three blocks by milk yield and assigned to an extra-period Latin-square change-over design comprising two dietary treatments. An extra period of observation was added to the Latin-square change-over design to control for carry-over effects. The dietary treatments were a diet consisting of grass silage and a commercial concentrate mixture (60:40) either not supplemented or supplemented with 0.5% AT on an organic matter intake basis. On average, daily CH4 production, CH4 yield, and CH4 intensity decreased by 60%, 54%, and 58%, respectively, in cows fed the diet supplemented with AT. Furthermore, hydrogen gas emitted by cows fed diets supplemented with AT increased by more than five times compared with cows fed a non-AT-supplemented diet. Feed intake was decreased and milk production altered, reflecting a decreased yield of milk fat in cows fed an AT-supplemented diet, but feed efficiency increased. Rumen fermentation parameters were changed to promote propionate rather than acetate and butyrate fermentation. The most prominent change in milk quality was an increase in bromine and iodine when the diet was supplemented with AT. The reduction in CH4 was associated with a shift from Methanobrevibacter to Methanomethylophilaceae in the archaeal population and a lower relative abundance of Prevotella in the bacterial population. Changes in milk fat odd-numbered and branched-chain fatty acids in the current study of AT supplementation support observed differences in ruminal archaeal and bacterial populations.
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Abstract
Excessive iodine can lead to goiters. However, the relationship between the water iodine concentration (WIC) and goiter rate (GR) is unclear. This study aims to explore the factors that influence children's GR in areas with high WIC and analyse the threshold value of the GR increase associated with the WIC. According to the monitoring of the areas with high WIC in China in 2018-2020, a total of 54 050 children in eight high water iodine provinces were chosen. Drinking water, urine and edible salt samples of children were collected. The thyroid volume (Tvol) was measured. A generalised additive model (GAM) was used to analyse the relationship between the WIC and GR in children. Among the 54 050 children in areas with high WIC, the overall GR was 3·34 %, the median of water iodine concentration was 127·0 µg/l, the median of urinary iodine concentration was 318 µg/l and the non-iodised salt coverage rate (NISCR) was 63·51 %. According to the GAM analysis results, water iodine and urinary iodine are factors that influence the Tvol and GR, while the NISCR affects only the GR. When the WIC was more than 420 µg/l or the urinary iodine concentration was more than 800 µg/l, the GR increased rapidly. When the NISCR reached more than 85 %, the GR was the lowest. Thus, in areas with high WIC, WIC more than 420 µg/l may increase the risk of goiter, and the NISCR should be increased to over 85 % to avoid goiters in children.
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Künzel S, Yergaliyev T, Wild KJ, Philippi H, Petursdottir AH, Gunnlaugsdottir H, Reynolds CK, Humphries DJ, Camarinha-Silva A, Rodehutscord M. Methane Reduction Potential of Brown Seaweeds and Their Influence on Nutrient Degradation and Microbiota Composition in a Rumen Simulation Technique. Front Microbiol 2022; 13:889618. [PMID: 35836418 PMCID: PMC9273974 DOI: 10.3389/fmicb.2022.889618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/17/2022] [Indexed: 12/30/2022] Open
Abstract
This study aimed to investigate the effects of two brown Icelandic seaweed samples (Ascophyllum nodosum and Fucus vesiculosus) on in vitro methane production, nutrient degradation, and microbiota composition. A total mixed ration (TMR) was incubated alone as control or together with each seaweed at two inclusion levels (2.5 and 5.0% on a dry matter basis) in a long-term rumen simulation technique (Rusitec) experiment. The incubation period lasted 14 days, with 7 days of adaptation and sampling. The methane concentration of total gas produced was decreased at the 5% inclusion level of A. nodosum and F. vesiculosus by 8.9 and 3.6%, respectively (P < 0.001). The total gas production was reduced by all seaweeds, with a greater reduction for the 5% seaweed inclusion level (P < 0.001). Feed nutrient degradation and the production of volatile fatty acids and ammonia in the effluent were also reduced, mostly with a bigger effect for the 5% inclusion level of both seaweeds, indicating a reduced overall fermentation (all P ≤ 0.001). Microbiota composition was analyzed by sequencing 16S rRNA amplicons from the rumen content of the donor cows, fermenter liquid and effluent at days 7 and 13, and feed residues at day 13. Relative abundances of the most abundant methanogens varied between the rumen fluid used for the start of incubation and the samples taken at day 7, as well as between days 7 and 13 in both fermenter liquid and effluent (P < 0.05). According to the differential abundance analysis with q2-ALDEx2, in effluent and fermenter liquid samples, archaeal and bacterial amplicon sequence variants were separated into two groups (P < 0.05). One was more abundant in samples taken from the treatment without seaweed supplementation, while the other one prevailed in seaweed supplemented treatments. This group also showed a dose-dependent response to seaweed inclusion, with a greater number of differentially abundant members between a 5% inclusion level and unsupplemented samples than between a 2.5% inclusion level and TMR. Although supplementation of both seaweeds at a 5% inclusion level decreased methane concentration in the total gas due to the high iodine content in the seaweeds tested, the application of practical feeding should be done with caution.
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Affiliation(s)
- Susanne Künzel
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | - Timur Yergaliyev
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | - Katharina J. Wild
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | - Hanna Philippi
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | | | - Helga Gunnlaugsdottir
- Matís, Reykjavík, Iceland
- Faculty of Food Science and Nutrition, School of Health Sciences, University of Iceland, Reykjavík, Iceland
| | - Chris K. Reynolds
- School of Agriculture, Policy and Development, University of Reading, Reading, United Kingdom
| | - David J. Humphries
- School of Agriculture, Policy and Development, University of Reading, Reading, United Kingdom
| | - Amélia Camarinha-Silva
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | - Markus Rodehutscord
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
- *Correspondence: Markus Rodehutscord,
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Wang J, Zhang H, Mao D, Tan H, Yu W, Xu J, Hong W, Piao J, Yang L, Liu X, Lu J, Li W, Li Y, Liu X, Yang X. Exploration of the lower threshold of iodine intake in Southern Chinese young adults based on ‘overflow theory’ in an iodine balance study. Nutr J 2022; 21:35. [PMID: 35644684 PMCID: PMC9150309 DOI: 10.1186/s12937-022-00775-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 04/14/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Appropriate iodine intake for adults is essential to reduce the prevalence of thyroid diseases, but there is little research data on iodine requirement of Chinese population. This study aimed to explore the iodine requirement of young adults to maintain a healthy status based on ‘overflow theory’.
Methods
Iodine-balance experiment has been performed in this project. We conducted an 18-day study consisted of a 6-day acclimation period and 3 consecutive experimental stages in 37 Chinese healthy young adults (23 female and 14 male). Each stage was consumed for 4 days. Strictly-controlled low-iodine intake diets were provided for adults in the first period, an egg or 125mL milk was added in the second and third period, respectively. The dietary samples, 24-h urine specimens and faeces of volunteers were collected daily for assessment of iodine intake and excretion in volunteers.
Results
Mean values of iodine intake (22.7±3.6, 35.1±3.7, and 52.2±3.8μg/d), excretion (64.7±13.9, 62.3±12.6, and 94.3±14.5μg/d) and iodine balance (-35.2±19.5, -21.0±19.8, and -33.5±26.9μg/d) were significantly different among three periods for male (P<0.001 for all); mean values of iodine intake (16.6±3.1, 29.7±2.7, and 48.0±2.7μg/d), and excretion (47.0±9.9, 55.5±8.1, and 75.7±12.4μg/d) were significantly different among three periods for female (P < 0.001 for all). No significant difference was observed among the 3 periods for female in the iodine balance (-30.5±9.3, -25.9±7.3, and -27.6±12.1μg/d). The linear regression equation of iodine excretion on iodine intake was Y=0.979X+37.04 (male) and Y=0.895X+31.48 (female). Compared with stage 2, iodine excretion increments in stage 3 had exceeded the iodine intake increment for men. The ratio of increment was 1.675 for male when the average iodine intake was 52.2μg/d in stage 3. When the iodine excretion increment equaled to the iodine intake increment, the daily iodine intake of men was 47.0μg.
Conclusion
We have evaluated the iodine requirement of young adults in southern China based on overflow theory. Our results indicate the lower limit of iodine requirement for Chinese young men is 47.0μg/d. The trial was registered at www.chictr.org.cn as ChiCTR1800014877.
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11
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Estimating short and longer-term exposure of domestic cats to dietary iodine fluctuation. Sci Rep 2022; 12:8987. [PMID: 35643927 PMCID: PMC9148307 DOI: 10.1038/s41598-022-13139-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 05/12/2022] [Indexed: 11/08/2022] Open
Abstract
Hyperthyroidism is a common endocrinopathy of domestic felines. In humans, toxic nodular goitre is pathophysiologically similar to feline hyperthyroidism and can be caused by chronically low or fluctuating dietary iodine intake. The aetiopathogenesis of feline hyperthyroidism is not known, but chronically low or fluctuating dietary iodine intake is likely common. This study assessed habitual iodine intake in domestic cats by: (1) conducting a dietary survey involving 361 owners of 549 cats, (2) analysing iodine content of 119 cat feeds, 38 urine and 64 hair samples and (3) assessing variation in iodine content of eight cat feeds over 4–6 different batches. Owners varied their cats feed regularly, usually on a day-to-day basis and often between wet and dry feeds with differing flavours. The majority (78%; 93 of 119) feeds for cats were within the guideline range for iodine. Of the 22% (n = 26 feeds) that were not compliant, the majority (n = 23) were below the nutritional minimum value with most (n = 16) being dry kibble. Iodine content of feeds did not vary considerably between types of feed or feed packaging, but variation between different batches of the same feed was 14–31%. Hence, urine iodine in cats also varied markedly. Cats being treated for hyperthyroidism had lower hair iodine. In conclusion, a survey assessing how domestic cats are fed, together with an analysis of commercial cat feeds suggests that domestic cats are likely to experience chronically low or fluctuating dietary iodine intake. The latter is supported by wide variation in urine iodine content.
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12
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Giri B, Pandey S, Shakya S, Neupane BB, Kandel KP, Yadav CK, Yadav RP, Neupane BP, Gc RB, Saud PS, Yonjan M. Excessive iodine in iodized household salt in Nepal. Ann N Y Acad Sci 2022; 1514:166-173. [PMID: 35611772 DOI: 10.1111/nyas.14793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Iodine is an essential trace element required for the regulation of physiological processes involving the thyroid gland. However, inadequate and excessive intake of iodine are responsible for health problems, such as iodine deficiency disorders, hypothyroidism, hyperthyroidism, thyroiditis, thyroid papillary cancer, and thyrotoxicosis. The Universal Salt Iodization (USI) program has become successful in providing supplemental iodine at the population level globally. Packaging quality, fortification level, and transportation and storage conditions of iodized salt determine the availability of iodine. Previous studies have reported severe health issues caused by excessive iodine intake after the implementation of the USI program. To understand the levels of iodine, we collected 2117 household salt samples from seven districts of Nepal and tested them for iodine content; among them, 98.1% were iodized. Overall median concentration of iodine was 53.9 ppm (range: 43.5-61.4 ppm). The majority (67.2%) of samples had iodine in the range of 45-75 ppm. Approximately 0.9% of samples had inadequate, 13.3% contained adequate, and 83.9% had excessive iodine than the World Health Organization-recommended value. Iodine content varied among the sampling districts and seasons, to some extent. Our study confirmed that iodized salt is widely used in Nepal and is excessively iodized. Excessive intake of iodine through iodized salt requires further attention by policy makers. The iodine level may need adjustment to address the health impact.
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Affiliation(s)
- Basant Giri
- Center for Analytical Sciences, Kathmandu Institute of Applied Sciences, Kathmandu, Nepal
| | - Shishir Pandey
- Center for Analytical Sciences, Kathmandu Institute of Applied Sciences, Kathmandu, Nepal
| | - Sadiksha Shakya
- Center for Analytical Sciences, Kathmandu Institute of Applied Sciences, Kathmandu, Nepal
| | - Bhanu Bhakta Neupane
- Center for Analytical Sciences, Kathmandu Institute of Applied Sciences, Kathmandu, Nepal.,Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal
| | | | | | | | - Bishnu Prasad Neupane
- Faculty of Health Sciences, School of Health and Allied Sciences, Pokhara University, Kaski, Nepal
| | | | - Prem Singh Saud
- Kailali Multiple Campus, Far-western University, Kailali, Nepal
| | - Meghraj Yonjan
- Amrit Science Campus, Tribhuvan University, Kathmandu, Nepal
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13
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Mansha M, Akram Khan S, Aziz MA, Zeeshan Khan A, Ali S, Khan M. Optical Chemical Sensing of Iodide Ions: A Comprehensive Review for the Synthetic Strategies of Iodide Sensing Probes, Challenges, and Future Aspects. CHEM REC 2022; 22:e202200059. [PMID: 35581148 DOI: 10.1002/tcr.202200059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/28/2022] [Indexed: 12/11/2022]
Abstract
Among several anions, iodide (I- ) ions play a crucial role in human biological activities. In it's molecular form (I2 ), iodine is utilized for several industrial applications such as syntheses of medicines, fabric dyes, food additives, solar cell electrolytes, catalysts, and agrochemicals. The excess or deficiency of I- ions in the human body and environmental samples have certain consequences. Therefore, the selective and sensitive detection of I- ions in the human body and environment is vital for monitoring their overall profile. Amongst various analytical techniques for the estimation of I- ions, optical-chemical sensing possesses the merits of high sensitivity, selectivity, and utilizing the least amount of sensing materials. The distinctive aims of this manuscript are (i) To comprehensively review the development of optical chemical sensors (fluorescent & colorimetric) reported between 2001-2021 using organic fluorescent molecules, supramolecular materials, conjugated polymers, and metal-organic frameworks (MOFs). (ii) To illustrate the design and synthetic strategies to create specific binding and high affinity of I- ions which could help minimize negative consequences associated with its large size and high polarizability. (iii) The challenges associated with sensitivity and selectivity of I- ions in aqueous and real samples. The probable future aspects concerning the optical chemical detection of I- ions have also been discussed in detail.
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Affiliation(s)
- Muhammad Mansha
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia
| | - Safyan Akram Khan
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia
| | - Md Abdul Aziz
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia
| | - Abdul Zeeshan Khan
- Department of Chemistry, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia
| | - Shahid Ali
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia
| | - Majad Khan
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia.,Department of Chemistry, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia
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14
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Abstract
The policy of Universal Salt Iodisation (USI) could reduce population's thyroid volume (TVOL) in iodine deficiency areas. Conversely, the improved growth and developmental status of children might increase the TVOL accordingly. Whether the decreased TVOL by USI conceals the increase effect of height and weight on TVOL is unclear. The aim of this study was to analyse the association between height, weight, iodine supplementation and TVOL. Five national Iodine Deficiency Disorder surveys were matched into four pairs according to the purpose of analysis. County-level data of both detected by paired surveys were incorporated; 1:1 random pairing method was used to match counties or individuals. The difference of TVOL between different height, weight, different iodine supplementation measures groups and the association between TVOL and them were studied. The mean height and weight of children aged 8-10 years increased from 129·9 cm and 26·9 kg in 2002 to 136·2 cm and 32·1 kg in 2019, while the median TVOL decreased from 3·10 ml to 2·61 ml. Iodine supplementation measures can affect TVOL; after excluding iodine effects, the median TVOL was increased with the height and weight. On the other side, after excluding the influence of height and weight, the median TVOL remained decreased. Only age, weight and salt iodine were significantly associated with TVOL in multiple linear models. Development of height and weight in children is the evidence of improved nutrition. The decreased TVOL caused by iodised salt measures conceals the increase effect of height and weight on TVOL. Age, weight and salt iodine affect TVOL significantly.
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15
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Fuse Y, Ito Y, Shishiba Y, Irie M. Current Iodine Status in Japan: A Cross-sectional Nationwide Survey of Schoolchildren, 2014-2019. J Clin Endocrinol Metab 2022; 107:e2065-e2079. [PMID: 34935958 DOI: 10.1210/clinem/dgab919] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Japan has been regarded as a long-standing iodine-sufficient country without iodine fortification; however, data on nationwide iodine status are lacking. OBJECTIVE This study aimed to characterize the iodine status in Japan. METHODS From 2014 through 2019, a nationwide school-based survey was conducted across all districts in Japan. Urinary iodine concentration (UIC), creatinine (Cr) concentration, and anthropometry were assessed in healthy school-aged children (SAC) aged 6 to 12 years. Their iodine status is regarded as generally representative of the nation's iodine status. RESULTS A total of 32 025 children participated. The overall median UIC was 269 μg/L, which was within the World Health Organization's adequacy range. There was a regional difference in UIC values within 14 regions, and the lowest and highest median UICs were found in Tanegashima Island (209 μg/L) and Nakashibetsu, Hokkaido (1071 μg/L), respectively. The median UIC ≥ 300 μg/L was observed in 12 of 46 regions. By using estimated 24-hour urinary iodine excretion (UIE), the prevalence of SAC exceeding the upper tolerable limit of iodine for Japanese children was from 5.2% to 13.7%. The UIC values did not change with age, body surface area and body mass index percentile, whereas the Cr concentration simultaneously increased suggesting the effect of urinary creatinine on UI/Cr and estimated 24-hour UIE values. CONCLUSIONS The iodine intake of Japanese people is adequate, but in some areas it is excessive. The incidence and prevalence of thyroid disorders associated with iodine intake should be obtained, especially in the areas where high amounts of iodine are consumed.
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Affiliation(s)
- Yozen Fuse
- Research Committee on Iodine Related Health Problems, Foundation for Growth Science, Tokyo 113-0033, Japan
| | - Yoshiya Ito
- Research Committee on Iodine Related Health Problems, Foundation for Growth Science, Tokyo 113-0033, Japan
- Division of Clinical Medicine, Japanese Red Cross Hokkaido College of Nursing, Kitami, Hokkaido 090-0011, Japan
| | - Yoshimasa Shishiba
- Research Committee on Iodine Related Health Problems, Foundation for Growth Science, Tokyo 113-0033, Japan
| | - Minoru Irie
- Research Committee on Iodine Related Health Problems, Foundation for Growth Science, Tokyo 113-0033, Japan
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16
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Fouts JQ, Honan MC, Roque BM, Tricarico JM, Kebreab E. Board Invited Review: Enteric methane mitigation interventions. Transl Anim Sci 2022; 6:txac041. [PMID: 35529040 PMCID: PMC9071062 DOI: 10.1093/tas/txac041] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/29/2022] [Indexed: 12/02/2022] Open
Abstract
Mitigation of enteric methane (CH4) presents a feasible approach to curbing agriculture’s contribution to climate change. One intervention for reduction is dietary reformulation, which manipulates the composition of feedstuffs in ruminant diets to redirect fermentation processes toward low CH4 emissions. Examples include reducing the relative proportion of forages to concentrates, determining the rate of digestibility and passage rate from the rumen, and dietary lipid inclusion. Feed additives present another intervention for CH4 abatement and are classified based on their mode of action. Through inhibition of key enzymes, 3-nitrooxypropanol (3-NOP) and halogenated compounds directly target the methanogenesis pathway. Rumen environment modifiers, including nitrates, essential oils, and tannins, act on the conditions that affect methanogens and remove the accessibility of fermentation products needed for CH4 formation. Low CH4-emitting animals can also be directly or indirectly selected through breeding interventions, and genome-wide association studies are expected to provide efficient selection decisions. Overall, dietary reformulation and feed additive inclusion provide immediate and reversible effects, while selective breeding produces lasting, cumulative CH4 emission reductions.
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Affiliation(s)
- Julia Q Fouts
- Department of Animal Science, University of California, Davis, Davis, CA 95616 USA
| | - Mallory C Honan
- Department of Animal Science, University of California, Davis, Davis, CA 95616 USA
| | - Breanna M Roque
- Department of Animal Science, University of California, Davis, Davis, CA 95616 USA
- FutureFeed Pty Ltd Townsville, QLD, Australia
| | | | - Ermias Kebreab
- Department of Animal Science, University of California, Davis, Davis, CA 95616 USA
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17
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Fuse Y, Ito Y, Tsukada N, Shishiba Y, Irie M. Iodine intake in healthy Japanese aged from 6 to 70 years residing in the same district. Endocr J 2022; 69:253-262. [PMID: 34602518 DOI: 10.1507/endocrj.ej21-0479] [Citation(s) in RCA: 2] [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] [Indexed: 11/23/2022] Open
Abstract
Iodine is an essential component of thyroid hormones and a dietary micronutrient for humans, and adequate iodine intake is necessary to maintain thyroid function. A population's iodine intake and nutritional status are assessed based on urinary iodine excretion. There are few studies on iodine nutritional status for all age groups residing in the same area in Japan. Between 2010 and 2017, a total of 769 healthy subjects aged 6.4-73 years in three sites in Yokohama City, were enrolled in the survey. The urinary iodine concentration (UIC), iodine to creatinine (Cr) ratio (UI/Cr) and estimated 24-h urinary iodine excretion (UIE) in single spot urine samples were measured, and habitual dietary iodine intake was assessed by food frequency questionnaires. The estimated 24-h UIE was calculated using individual predicted 24-h creatinine excretion by the validated equations developed for healthy Japanese children and adults which vary by age, gender and anthropometry. The median UIC for all participants was 219 μg/L, suggesting adequate iodine intake for this population. There was an increasing trend in median UI/Cr and estimated 24-h UIE by age. A significant correlation between UIC and UI/Cr (r = 0.6378), UIC and estimated 24-h UIE (r = 0.6804), and UI/Cr and estimated 24-h UIE (r = 0.5756) were observed. These estimates can be feasible, convenient and alternative methods to 24-h urine collection in order to assess iodine status in some populations such as ethnically or racially homogeneous and well-nourished people. Additional studies are required to validate these findings.
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Affiliation(s)
- Yozen Fuse
- Research Committee on Iodine Related Health Problems, Foundation for Growth Science, Tokyo 113-0033, Japan
| | - Yoshiya Ito
- Division of Clinical Medicine, Japanese Red Cross Hokkaido College of Nursing, Kitami 090-0011, Japan
| | - Nobu Tsukada
- Kagawa Nutrition University, Institute of Nutrition Sciences, Sakado 350-0288, Japan
| | - Yoshimasa Shishiba
- Research Committee on Iodine Related Health Problems, Foundation for Growth Science, Tokyo 113-0033, Japan
| | - Minoru Irie
- Research Committee on Iodine Related Health Problems, Foundation for Growth Science, Tokyo 113-0033, Japan
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18
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Min BR, Parker D, Brauer D, Waldrip H, Lockard C, Hales K, Akbay A, Augyte S. The role of seaweed as a potential dietary supplementation for enteric methane mitigation in ruminants: Challenges and opportunities. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2021; 7:1371-1387. [PMID: 34786510 PMCID: PMC8581222 DOI: 10.1016/j.aninu.2021.10.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 09/30/2021] [Accepted: 10/04/2021] [Indexed: 11/29/2022]
Abstract
Seaweeds are macroalgae, which can be of many different morphologies, sizes, colors, and chemical profiles. They include brown, red, and green seaweeds. Brown seaweeds have been more investigated and exploited in comparison to other seaweed types for their use in animal feeding studies due to their large sizes and ease of harvesting. Recent in vitro and in vivo studies suggest that plant secondary compound-containing seaweeds (e.g., halogenated compounds, phlorotannins, etc.) have the potential to mitigate enteric methane (CH4) emissions from ruminants when added to the diets of beef and dairy cattle. Red seaweeds including Asparagopsis spp. are rich in crude protein and halogenated compounds compared to brown and green seaweeds. When halogenated-containing red seaweeds are used as the active ingredient in ruminant diets, bromoform concentration can be used as an indicator of anti-methanogenic properties. Phlorotannin-containing brown seaweed has also the potential to decrease CH4 production. However, numerous studies examined the possible anti-methanogenic effects of marine seaweeds with inconsistent results. This work reviews existing data associated with seaweeds and in vitro and in vivo rumen fermentation, animal performance, and enteric CH4 emissions in ruminants. Increased understanding of the seaweed supplementation related to rumen fermentation and its effect on animal performance and CH4 emissions in ruminants may lead to novel strategies aimed at reducing greenhouse gas emissions while improving animal productivity.
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Affiliation(s)
- Byeng R. Min
- College of Agriculture, Environment and Nutrition Sciences, Tuskegee University, Tuskegee, AL 36088, USA
- United States Department of Agriculture (USDA), Agriculture Research Service (ARS), 2300 Experiment Station Dr., Bushland, TX 79012, USA
| | - David Parker
- United States Department of Agriculture (USDA), Agriculture Research Service (ARS), 2300 Experiment Station Dr., Bushland, TX 79012, USA
| | - David Brauer
- United States Department of Agriculture (USDA), Agriculture Research Service (ARS), 2300 Experiment Station Dr., Bushland, TX 79012, USA
| | - Heidi Waldrip
- United States Department of Agriculture (USDA), Agriculture Research Service (ARS), 2300 Experiment Station Dr., Bushland, TX 79012, USA
| | - Catherine Lockard
- United States Department of Agriculture (USDA), Agriculture Research Service (ARS), 2300 Experiment Station Dr., Bushland, TX 79012, USA
| | - Kristin Hales
- Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX 79409, USA
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19
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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.
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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
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20
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Iodine nutrition: Disorders, monitoring and policies. ADVANCES IN FOOD AND NUTRITION RESEARCH 2021; 96:365-415. [PMID: 34112358 DOI: 10.1016/bs.afnr.2021.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Iodine is an essential mineral nutrient and an integral component of thyroid hormones. Iodine deficiency is typically associated with goiter, but can have more serious health implications. Adequate iodine status is important for normal brain development. Iodine deficiency in utero or in early life can cause severe neurological and cognitive impairment. Over the last three decades, global efforts have reduced the prevalence of iodine deficiency disorders (IDD) in many areas of the world with implementation of nutrition policies and programs such as "salt" iodization. However, in a number of areas iodine deficiency is still widespread. Iodine deficiency in remote regions with high poverty will be more difficult to eradicate. Efforts to eliminate IDD in affected areas and sustaining successful iodine programs will be a priority given the substantial public health and economic benefits. A key component will be periodic monitoring of population iodine status to ensure sufficient intakes and the absence of excessive intakes. Median urinary iodine concentration (UIC), a validated biomarker for assessing population iodine status, will facilitate monitoring. Research validating "usual" UIC for use in combination with the Estimated Average Requirement cut-point method will expand its utility and allow accurate determination of the prevalence of inadequate intakes in populations. Further research on the development of biomarkers for assessment of individual iodine status for routine patient care will be important.
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21
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Stefenoni HA, Räisänen SE, Cueva SF, Wasson DE, Lage CFA, Melgar A, Fetter ME, Smith P, Hennessy M, Vecchiarelli B, Bender J, Pitta D, Cantrell CL, Yarish C, Hristov AN. Effects of the macroalga Asparagopsis taxiformis and oregano leaves on methane emission, rumen fermentation, and lactational performance of dairy cows. J Dairy Sci 2021; 104:4157-4173. [PMID: 33516546 DOI: 10.3168/jds.2020-19686] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 11/21/2020] [Indexed: 12/19/2022]
Abstract
Asparagopsis taxiformis (AT) is a source of multiple halogenated compounds and, in a limited number of studies, has been shown to decrease enteric CH4 emission in vitro and in vivo. Similarly, oregano has been suggested as a potential CH4 mitigating agent. This study consisted of 2 in vitro and 2 in vivo experiments. Experiment (Exp.) 1 was aimed at establishing the effect of AT on CH4 emission in vitro. Two experiments (Exp. 2 and 3) with lactating dairy cows were conducted to determine the antimethanogenic effect of AT and oregano (Exp. 3) in vivo. Another experiment (Exp. 4) was designed to investigate stability of bromoform (CHBr3) in AT over time. In Exp. 3, 20 Holstein cows were used in a replicated 4 × 4 Latin square design with four 28-d periods. Treatments were basal diet (control) or basal diet supplemented with (dry matter basis) 0.25% AT (LowAT), 0.50% AT (HighAT), or 1.77% oregano (Origanum vulgare L.) leaves. Enteric gas emissions were measured using the GreenFeed system (C-Lock Inc., Rapid City, SD), and rumen samples were collected for fermentation analysis using the ororuminal technique. In Exp.1 (in vitro), relative to the control, AT (at 1% dry matter basis, inclusion rate) decreased CH4 yield by 98%. In Exp. 3, HighAT decreased average daily CH4 emission and CH4 yield by 65% and 55%, respectively, in experimental periods 1 and 2, but had no effect in periods 3 and 4. The differential response to AT among experimental periods was likely a result of a decrease in CHBr3 concentration in AT over time, as observed in Exp. 4 (up to 84% decrease in 4 mo of storage). In Exp. 3, H2 emission was increased by AT and, as expected, the proportion of acetate in the total volatile fatty acids in the rumen was decreased and those of propionate and butyrate were increased by HighAT compared with the control. Compared with the control, HighAT decreased dry matter intake, milk yield, and energy-corrected milk yield in Exp. 3. Milk composition was not affected by treatment, except lactose percentage and yield were decreased by HighAT. Concentrations of iodine and bromide in milk were increased by HighAT compared with the control. Milk CHBr3 concentration and its organoleptic characteristics were not different between control and HighAT. Oregano had no effect on CH4 emission or lactational performance of the cows in Exp. 3. Overall, AT included at 0.50% in the ration of dairy cows can have a large mitigation effect on enteric CH4 emission, but dry matter intake and milk production may also decrease. There was a marked decrease in the CH4 mitigation potential of AT in the second half of Exp. 3, likely resulting from CHBr3 decay over time.
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Affiliation(s)
- H A Stefenoni
- Department of Animal Science, The Pennsylvania State University, University Park 16802
| | - S E Räisänen
- Department of Animal Science, The Pennsylvania State University, University Park 16802
| | - S F Cueva
- Department of Animal Science, The Pennsylvania State University, University Park 16802
| | - D E Wasson
- Department of Animal Science, The Pennsylvania State University, University Park 16802
| | - C F A Lage
- Department of Animal Science, The Pennsylvania State University, University Park 16802
| | - A Melgar
- Department of Animal Science, The Pennsylvania State University, University Park 16802
| | - M E Fetter
- Department of Animal Science, The Pennsylvania State University, University Park 16802
| | - P Smith
- Proteomics and Mass Spectrometry Core Facility, The Pennsylvania State University, University Park 16802
| | - M Hennessy
- Department of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square 19348
| | - B Vecchiarelli
- Department of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square 19348
| | - J Bender
- Department of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square 19348
| | - D Pitta
- Department of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square 19348
| | - C L Cantrell
- Natural Products Utilization Research Unit, U.S. Department of Agriculture, Agricultural Research Service, University, MS 38677
| | - C Yarish
- Department of Ecology and Evolutionary Biology, The University of Connecticut, Stamford 06901
| | - A N Hristov
- Department of Animal Science, The Pennsylvania State University, University Park 16802.
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22
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Wang Y, Dong X, Fu C, Su M, Jiang F, Xu D, Li R, Huang P, Wang N, Chen Y, Jiang Q. Associations Between Thyroid Volume and Physical Growth in Pubertal Girls: Thyroid Volume Indexes Need to Be Applied to Thyroid Volume Assessments. Front Endocrinol (Lausanne) 2021; 12:662543. [PMID: 34093438 PMCID: PMC8170467 DOI: 10.3389/fendo.2021.662543] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/13/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Thyroid volume (Tvol) is associated with many factors, but the current reference values for Tvol in children with sufficient iodine intake are inappropriate and need to be updated. Moderate changes in thyroid morphology and accentuated increases in body fat percentage occur during puberty as an adaption of the body and sexual development occurs. This study aimed to evaluate the influences of physical growth on Tvol and propose an easily applicable method for conducting Tvol assessments in pubertal girls with sufficient iodine intake.Methods: A cohort study was conducted on 481 pubertal girls in East China from 2017 to 2019. B-ultrasound was used to assess Tvol. Multiple linear regression models were used to estimate the associations of Tvol enlargement (dTvol) with changes in height (dH), weight (dW), waist circumference (dW), body mass index (dBMI), and body surface area (dBSA). Thyroid volume indexes (TVIs), including height thyroid volume index (HVI), weight and height thyroid volume index (WHVI), body mass index thyroid index (BMIV), and body surface area thyroid index (BSAV), were calculated to explore an appropriate method for Tvol assessments by Spearman correlation analyses. RESULTS Tvol, height, weight, BMI, and BSA increased significantly from baseline to follow-up (P<0.001). The associations between dTvol and physical growth were only observed in the 13 to 14-year-old group. dH, dW,dBMI, and dBSA were positively related to dTvol, with the maximum β of 5.74 (95%CI: 2.54 to 8.94) on dBSA, while dWC was negatively related to dTvol (β= -0.05, 95%CI: -0.08 to -0.03). Both dHVI and dBSAV were not associated with dH, dW, dBMI, or dBSA in both age groups (P>0.05). CONCLUSIONS Thyroid volume was associated with physical growth in pubertal girls in East China, both age and anthropometric measurements must be comprehensively considered to establish the reference values for Tvol. HVI, and BSAV may be better indicators for Tvol assessments in pubertal girls.
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Affiliation(s)
- Yingying Wang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Xiaolian Dong
- Department of Chronic Disease Control and Prevention, Deqing County Center for Disease Control and Prevention, Huzhou, China
| | - Chaowei Fu
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Meifang Su
- Department of Chronic Disease Control and Prevention, Yuhuan City Center for Disease Control and Prevention, Taizhou, China
| | - Feng Jiang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Dongli Xu
- Department of Chronic Disease Control and Prevention, Minhang District Center for Disease Control and Prevention, Shanghai, China
| | - Rui Li
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Peixin Huang
- Department of Chronic Disease Control and Prevention, Haimen City Center for Disease Control and Prevention, Nantong, China
| | - Na Wang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
- *Correspondence: Na Wang,
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Qingwu Jiang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
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23
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Doggui R, Al-Jawaldeh H, Al-Jawaldeh A. Trend of Iodine Status in the Eastern Mediterranean Region and Impact of the Universal Salt Iodization Programs: a Narrative Review. Biol Trace Elem Res 2020; 198:390-402. [PMID: 32221799 DOI: 10.1007/s12011-020-02083-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 02/14/2020] [Indexed: 12/14/2022]
Abstract
Recognizing the importance of iodine deficiency as a single most important preventable cause of brain damage, World Health Organization (WHO) urged all countries to scale up salt iodization since 1991 where iodine deficiency was declared as a global public health problem. All countries committed to report on the national iodine status of school-aged children (6-12 years), every 3 years. This paper aims to evaluate the progress of countries in Eastern Mediterranean Region (EMR) toward the eradication of iodine deficiency disorders (IDD) and recommend operational action to support implementation of the WHO Regional Nutrition Strategy (2020-2030). Salt iodization in EMR has been scaled up with significant progress in increasing the proportion of dietary salt which is adequately iodized. As a result, many countries such as Qatar, Kuwait, Bahrain, Jordan, Oman, and Iran have achieved, or are now on the threshold of achieving IDD elimination. The WHO in coordination with United Nations Children's Fund is working with member states to ensure suitability of these achievements. Hence, efficient monitoring will help member states to measure the magnitude of IDD as a public health problem and to monitor the effects of the intervention on the iodine status of a population. Policy makers should take proactive steps to enforce mandatory regulatory measures for USI, through a multi-sectoral coordination, and careful assessments and estimates of iodine nutritional status. Coordination between the two national programs of USI and salt reduction intake is necessary.
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Affiliation(s)
- Radhouene Doggui
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA.
| | - Hanin Al-Jawaldeh
- Health Science Department, The American University of Madaba, Madaba, 11821, Jordan
| | - Ayoub Al-Jawaldeh
- Department of Nutrition Sciences, University of Vienna, UZA2 Althantstrasse 14, 1090, Vienna, Austria
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24
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Ren D, Mei J, Bao J, Wei F, Xu G, Yang J, Sun Y, Hu Q, Cen Y. A novel profuse color card for convenient visual determination of iodide in human urine based on catalytic oxidation reaction. J Pharm Biomed Anal 2020; 191:113580. [PMID: 32916562 DOI: 10.1016/j.jpba.2020.113580] [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: 05/11/2020] [Revised: 07/10/2020] [Accepted: 08/13/2020] [Indexed: 11/26/2022]
Abstract
In this work, we reported a novel and convenient profuse color card for naked eye determination of iodide (I-) in urine using chromogenic substrate 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). I- catalyzed the oxidation of ABTS by peroxyacetic acid causing ABTS to yield cyan product ABTS+ with a new absorption peak at 730 nm. The addition of rose-red dye rhodamine B (RhB) changes the overall color of the solution from pink to purple and finally to blue, which makes the solution multicolor and easy to distinguish. A good linear relationship for I- was obtained ranging from 10.0 to 500.0 μg/L with the detection limit of 9.2 μg/L. Importantly, the sensor can semi-quantitatively estimate the concentration of I- in human urine with naked eye through the standard color card and assess the deficiency or excess of iodine in human body. The proposed profuse color card opens up a new colorimetric method for the rapid, simple and reliable determination of I- in clinic, and has promising applications in developing assay kit for the clinical diagnosis of I- in urine.
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Affiliation(s)
- Dandan Ren
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Jie Mei
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Jian Bao
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Fangdi Wei
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China; Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Guanhong Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China; Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Jing Yang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China; Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China
| | - Yong Sun
- Key laboratory of toxicology, Ningde normal university, Ningde, Fujian 352000, PR China
| | - Qin Hu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China; Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China.
| | - Yao Cen
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China; Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, PR China.
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25
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Wang Z, Luo B, Zang J, Shi Z, Cui X, Song Q, Jin W, Guo C, Liu S. Appropriate Range of Median Urinary Iodine Concentration in 8- to 10-Year-Old Children Based on Generalized Additive Model. Thyroid 2020; 30:1535-1540. [PMID: 32245343 DOI: 10.1089/thy.2019.0813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Background: The appropriate range of median urinary iodine concentration (MUI) in children has always been controversial. To prevent the occurrence of a goiter epidemic in Shanghai, we explored the appropriate range of MUI by integrating multiple monitoring results. Methods: This study summarized and analyzed the monitoring data from 1997, 1999, 2011, 2014, and 2017 of children living in Shanghai. In each monitoring year, the probability-proportional-to-size sampling technique was used to select 30 sampling units. In each sampling unit, one primary school was randomly selected. From each selected school, 40 children 8- to 10-year-old were randomly recruited to measure thyroid volume (Tvol) and their household salt iodine intake. Results: In 1997, 1999, 2011, 2014, and 2017, MUI of 8- to 10-year-old children was 228, 214, 182, 171, and 183 μg/L, and median Tvol (MTvol) was 2.9, 1.2, 1.0, 1.8, and 2.8 mL, respectively. There was a linear correlation between goiter rate and MTvol (r = 0.95, p = 0.014; 100 × goiter rate = 1.314 × MTvol -1.287). Generalized additive model (GAM) was used to predict MTvol as follows, MTvol = 0.60689 + 0.00302 MUI +0.999928 s (MUI) -0.05172 mean salt iodized concentrations (MSIs) +0.03481 × 100 × iodized salt coverage rate +0.00000969 per capita disposable income +0.271422 s (per capita disposable income) -0.38772 × monitoring year gap. The results revealed that the average relative error between predicted and actual value was 15.2%. GAM results showed that at 27-277 μg/L MUI, the goiter rate was <5%. Conclusions: Iodine status is appropriate in Shanghai. Under the existing economy and MSI, the optimal range of MUI should be 70-277 μg/L in 8- to 10-year-old children living in Shanghai.
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Affiliation(s)
- Zhengyuan Wang
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Baozhang Luo
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Jiajie Zang
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Zehuan Shi
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Xueying Cui
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Qi Song
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Wei Jin
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Changyi Guo
- General office, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Shoujun Liu
- Institute of Iodine Deficiency Disorders, Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
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26
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Dey S, Purkait R, Mallick D, Sinha C. A Vanillinyl‐Hydrazone Schiff Base: Recognition of Mg
2+
, Zn
2+
, Cd
2+
and I
−
by Turn‐On Fluorescence Method. ChemistrySelect 2020. [DOI: 10.1002/slct.202002271] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sunanda Dey
- Department of Chemistry Jadavpur University Kolkata 700 032 India
| | - Rakesh Purkait
- Department of Chemistry Jadavpur University Kolkata 700 032 India
| | - Debashis Mallick
- Department of Chemistry Mrinalini Datta Mahavidyapith Kolkata 700 051 India
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Yao N, Zhou C, Xie J, Li X, Zhou Q, Chen J, Zhou S. Assessment of the iodine nutritional status among Chinese school-aged children. Endocr Connect 2020; 9:379-386. [PMID: 32365330 PMCID: PMC7219133 DOI: 10.1530/ec-19-0568] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 04/15/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The remarkable success of iodine deficiency disorders (IDD) elimination in China has been achieved through a mandatory universal salt iodization (USI) program. The study aims to estimate the relationship between urinary iodine concentration (UIC) and iodine content in edible salt to assess the current iodine nutritional status of school aged children. METHODS A total of 5565 students from 26 of 39 districts/counties in Chongqing participated in the study, UIC and iodine content in table salt were measured. Thyroid volumes of 3311 students were examined by ultrasound and goiter prevalence was calculated. RESULTS The overall median UIC of students was 222 μg/L (IQR: 150-313 μg/L). Median UIC was significantly different among groups with non-iodized salt (iodine content <5 mg/kg), inadequately iodized salt (between 5 and 21 mg/kg), adequately iodized (between 21 and 39 mg/kg) and excessively iodized (>39 mg/kg) salt (P < 0.01). The total goiter rate was 1.9% (60/3111) and 6.0% (186/3111) according to Chinese national and WHO reference values, respectively. Thyroid volume and goiter prevalence were not different within the three iodine nutritional status groups (insufficient, adequate and excessive, P > 0.05). CONCLUSIONS The efficient implementation of current USI program is able to reduce the goiter prevalence in Chongqing as a low incidence of goiter in school aged children is observed in this study. The widened UIC range of 100-299 μg/L indicating sufficient iodine intake is considered safe with a slim chance of causing goiter or thyroid dysfunction. Further researches were needed to evaluate the applicability of WHO reference in goiter diagnose in Chongqing or identifying more accurate criteria of normal thyroid volume of local students in the future.
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Affiliation(s)
- Ning Yao
- Chongqing Center for Disease Control and Prevention, Chongqing, People’s Republic of China
| | - Chunbei Zhou
- Chongqing Center for Disease Control and Prevention, Chongqing, People’s Republic of China
| | - Jun Xie
- Chongqing Center for Disease Control and Prevention, Chongqing, People’s Republic of China
| | - Xinshu Li
- Chongqing Center for Disease Control and Prevention, Chongqing, People’s Republic of China
| | - Qianru Zhou
- Chongqing Center for Disease Control and Prevention, Chongqing, People’s Republic of China
| | - Jing Chen
- Chongqing Center for Disease Control and Prevention, Chongqing, People’s Republic of China
| | - Shuang Zhou
- Chongqing Center for Disease Control and Prevention, Chongqing, People’s Republic of China
- Correspondence should be addressed to S Zhou:
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Redecillas-Ferreiro S, Moráis-López A, Manuel Moreno-Villares J. Position paper on vegetarian diets in infants and children. Committee on Nutrition and Breastfeeding of the Spanish Paediatric Association. ANALES DE PEDIATRÍA (ENGLISH EDITION) 2020. [DOI: 10.1016/j.anpede.2019.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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29
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Stable Iodine Nutrition During Two Decades of Continuous Universal Salt Iodisation in Sri Lanka. Nutrients 2020; 12:nu12041109. [PMID: 32316214 PMCID: PMC7230738 DOI: 10.3390/nu12041109] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/07/2020] [Accepted: 04/09/2020] [Indexed: 01/17/2023] Open
Abstract
Universal salt iodisation (USI) was introduced in Sri Lanka in 1995. Since then, four national iodine surveys have assessed the iodine nutrition status of the population. We retrospectively reviewed median urine iodine concentration (mUIC) and goitre prevalence in 16,910 schoolchildren (6-12 years) in all nine provinces of Sri Lanka, the mUIC of pregnant women, drinking-water iodine level, and the percentage of households consuming adequately (15 mg/kg) iodised salt (household salt iodine, HHIS). The mUIC of schoolchildren increased from 145.3 µg/L (interquartile range (IQR) = 84.6-240.4) in 2000 to 232.5 µg/L (IQR = 159.3-315.8) in 2016, but stayed within recommended levels. Some regional variability in mUIC was observed (178.8 and 297.3 µg/L in 2016). There was positive association between mUIC in schoolchildren and water iodine concentration. Goitre prevalence to palpation was a significantly reduced from 18.6% to 2.1% (p < 0.05). In pregnant women, median UIC increased in each trimester (102.3 (61.7-147.1); 217.5 (115.6-313.0); 273.1 (228.9-337.6) µg/L (p = 0.000)). We conclude that the introduction and maintenance of a continuous and consistent USI programme has been a success in Sri Lanka. In order to sustain the programme, it is important to retain monitoring of iodine status while tracking salt-consumption patterns to adjust the recommended iodine content of edible salt.
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Galván M, Fernández Cortés TL, Suárez-Diéguez T, López-Rodríguez G. Estado nutricional de yodo en niños escolares mexicanos de zonas urbanas y rurales. ENDOCRINOL DIAB NUTR 2020; 67:228-234. [DOI: 10.1016/j.endinu.2019.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/21/2019] [Accepted: 09/02/2019] [Indexed: 11/16/2022]
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31
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Redecilla Ferreiro S, Moráis López A, Moreno Villares JM. [Position paper on vegetarian diets in infants and children. Committee on Nutrition and Breastfeeding of the Spanish Paediatric Association]. An Pediatr (Barc) 2019; 92:306.e1-306.e6. [PMID: 31866234 DOI: 10.1016/j.anpedi.2019.10.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 10/30/2019] [Indexed: 12/23/2022] Open
Abstract
In the last few years, there are an increased number of families following a vegetarian diet, including their children. In order to guarantee child heath, paediatricians need to know the characteristics of this diet and the main foods that are used. There are few data on the medium and long-term health outcomes when removing all animal foods from the child's diet, especially at younger ages. Nevertheless, new tools have recently become available to facilitate following a vegetarian diet and decreasing the risk of deficiencies. In this document, the group of foods commonly used in vegetarian diets are reviewed, as well as recommendations for each age group. It also mentions the need to use B12 supplements at all ages, as well as other nutrients (iodine, iron, vitaminD3, poly-unsaturated fatty acid n-3), when required. A vegetarian or a vegan diet, as in any other kind of diet, needs to be carefully designed. After reviewing current evidence, even though following a vegetarian diet at any age does not necessarily mean it is unsafe, it is advisable for infant and young children to follow an omnivorous diet or, at least, an ovo-lacto-vegetarian diet.
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Wassie MM, Middleton P, Zhou SJ. Agreement between markers of population iodine status in classifying iodine status of populations: a systematic review. Am J Clin Nutr 2019; 110:949-958. [PMID: 31268129 DOI: 10.1093/ajcn/nqz118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/10/2019] [Accepted: 05/24/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Population iodine deficiency is indicated by >3% of the population with newborn thyroid-stimulating hormone (TSH) concentration >5 mIU/L, median urinary iodine concentration (MUIC) <100 µg/L, or >5% prevalence of goiter in school-age children. However, the agreement between these population markers has not been systematically investigated. OBJECTIVE To assess the agreement between TSH, MUIC, and goiter as markers of population iodine status. METHODS We performed a systematic search for studies published on PubMed, Scopus, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Embase, and PsycINFO up to 29 October, 2018. Studies assessing iodine status in the population using the TSH marker and either MUIC or goiter prevalence in school-age children were included. The agreement between markers in classifying iodine status of the population was assessed. The sensitivity and specificity of the TSH marker was determined against MUIC and goiter prevalence as the reference markers. RESULTS Of 17,435 records identified by the search strategy, 57 eligible studies were included in the review. The agreement between markers in classifying the iodine status of populations into the same category was 65% for TSH and MUIC, and 83% for TSH and goiter prevalence. The TSH marker had a sensitivity of 0.75 and specificity of 0.53 when compared with MUIC, and 0.86 and 0.50 when compared with goiter prevalence. CONCLUSIONS The TSH marker has a better agreement with goiter prevalence than MUIC when classifying the iodine status of populations. Re-evaluation of the current criteria for classifying the iodine status of populations using the TSH marker is warranted. This systematic review was registered at PROSPERO (http://www.crd.york.ac.uk/prospero/) as CRD42018091247.
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Affiliation(s)
- Molla Mesele Wassie
- School of Agriculture Food and Wine, Faculty of Sciences, The University of Adelaide, Adelaide, Australia.,Department of Human Nutrition, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Philippa Middleton
- Robinson Research Institute, School of Paediatrics and Reproductive Health, The University of Adelaide, Adelaide, Australia.,South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Shao Jia Zhou
- School of Agriculture Food and Wine, Faculty of Sciences, The University of Adelaide, Adelaide, Australia.,Robinson Research Institute, School of Paediatrics and Reproductive Health, The University of Adelaide, Adelaide, Australia
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33
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Antaya NT, Ghelichkhan M, Pereira ABD, Soder KJ, Brito AF. Production, milk iodine, and nutrient utilization in Jersey cows supplemented with the brown seaweed Ascophyllum nodosum (kelp meal) during the grazing season. J Dairy Sci 2019; 102:8040-8058. [PMID: 31279546 DOI: 10.3168/jds.2019-16478] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 05/08/2019] [Indexed: 11/19/2022]
Abstract
Kelp meal (KM) is a supplement made from the brown seaweed Ascophyllum nodosum, known to bioaccumulate iodine (I) and to be the richest source of phlorotannins, which can inhibit ruminal proteolysis and microbial growth. The objective of this study was to investigate the effects of KM on production, milk I, concentrations of blood metabolites, apparent total-tract digestibility of nutrients, and CH4 emissions in grazing dairy cows. Eight multiparous Jersey cows averaging (mean ± SD) 175 ± 60 d in milk and 12 primiparous Jersey cows averaging 142 ± 47 d in milk at the beginning of the study were assigned to either 0 g/d of KM (control diet, CTRL) or 113 g/d of KM (brown seaweed diet, BSW) in a randomized complete block design. Diets were formulated to yield a 70:30 forage-to-concentrate ratio and consisted of (dry matter basis): 48% cool-season perennial herbage and 52% partial TMR (pTMR). Each experimental period (n = 3) lasted 28 d, with data and sample collection taking place during the last 7 d of each period. Cows had approximately 16.5 h of access to pasture daily. Herbage dry matter intake increased, and total dry matter intake tended to increase in cows fed BSW versus the CTRL diet. Milk yield and concentrations and yields of milk components were not affected by diets. Similarly, blood concentrations of cortisol, glucose, fatty acids, and thyroxine did not change with feeding CTRL or BSW. However, a diet × period interaction was observed for milk I concentration; cows offered the BSW diet had greater milk I concentration during periods 1, 2, and 3, but the largest difference between BSW and CTRL was observed in period 2 (579 vs. 111 µg/L, respectively). Except for period 2, the concentration of milk I in cows fed KM did not exceed the 500 µg/L threshold recommended for human consumption. Diet × period interactions were also found for serum triiodothyronine concentration, total-tract digestibilities of crude protein and acid detergent fiber, CH4 production, and urinary excretion of purine derivatives. Overall, the lack of KM effects on milk yield and concentrations and yields of milk components indicate that dairy producers should consider costs before making KM supplementation decisions during the grazing season. Future research is needed to evaluate the concentration of I in retail organic milk because of the high prevalence of KM supplementation in northeastern and midwestern US organic dairies and possibly in other regions of the country.
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Affiliation(s)
- N T Antaya
- Department of Agriculture, Nutrition, and Food Systems, University of New Hampshire, Durham 03824
| | - M Ghelichkhan
- Department of Agriculture, Nutrition, and Food Systems, University of New Hampshire, Durham 03824
| | - A B D Pereira
- Department of Agriculture, Nutrition, and Food Systems, University of New Hampshire, Durham 03824
| | - K J Soder
- USDA Agricultural Research Service, Pasture Systems and Watershed Management Research Unit, University Park, PA 16802
| | - A F Brito
- Department of Agriculture, Nutrition, and Food Systems, University of New Hampshire, Durham 03824.
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Chen W, Zhang Y, Hao Y, Wang W, Tan L, Bian J, Pearce EN, Zimmermann MB, Shen J, Zhang W. Adverse effects on thyroid of Chinese children exposed to long-term iodine excess: optimal and safe Tolerable Upper Intake Levels of iodine for 7- to 14-y-old children. Am J Clin Nutr 2019; 107:780-788. [PMID: 29722836 DOI: 10.1093/ajcn/nqy011] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Accepted: 01/10/2018] [Indexed: 11/13/2022] Open
Abstract
Background The adverse effects of iodine excess on the thyroid in children are not well understood, and the Tolerable Upper Intake Level for iodine in children is unclear. Objective The aims of this study were to assess the effects of chronic long-term iodine excess on thyroid function in children and to explore the safe Tolerable Upper Intake Level of iodine in Chinese children. Design A multistage cross-sectional study was conducted in 2224 children from areas with adequate to excessive iodine content in drinking water. Repeated samples of 24-h urine and spot urine samples were collected to estimate habitual daily iodine intakes of children. The thyroid volume in children was measured and blood samples were collected to determine thyroid function. Results The habitual iodine intake of children was 298 μg/d (range: 186-437 μg/d). The total goiter rate was 9.7%, 232 (11.2%) children had hyperthyrotropinemia, and 232 (11.2%) children had thyroglobulin (Tg) concentrations >40 μg/L. The prevalence of hyperthyrotropinemia was >10% in children at iodine intakes of 200-300 μg/d. Tg concentrations increased with increased iodine intake (β = 0.5; 95% CI: 0.4, 0.6), and the prevalence of Tg >40 μg/L was >3% in all iodine-intake groups. Multivariate logistic regression analysis indicated that the risk of total goiter significantly increased at iodine intakes ≥250-299 μg/d in 7- to 10-y-old children (OR: 8.8; 95% CI: 2.3, 34.0) and at iodine intakes ≥300-399 μg/d in 11- to 14-y-old children (OR: 5.2; 95% CI: 1.5, 18.3). However, there were no consistent differences in the risk of hyperthyrotropinemia and Tg >40 μg/L in children between different iodine-intake groups. Conclusions Thyroid volume and goiter appear to be more sensitive indicators of thyroid stress than thyrotropin and Tg in children with long-term excess iodine intakes. We recommend 250 and 300 μg/d as safe Tolerable Upper Intake Levels of iodine for children aged 7-10 y and 11-14 y, respectively. This trial was registered at www.clinicaltrials.gov as NCT02915536.
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Affiliation(s)
- Wen Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Yixin Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Yunmeng Hao
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Wei Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Long Tan
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Jiancao Bian
- The Shandong Institute for Endemic Disease Control and Research, Shandong, China
| | - Elizabeth N Pearce
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston, MA
| | - Michael B Zimmermann
- Human Nutrition Laboratory, Swiss Federal Institute of Technology, Zurich, Switzerland
| | - Jun Shen
- 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
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Are there feasible strategies for determining bromine and iodine in human hair using interference-free plasma based-techniques? Anal Chim Acta 2019; 1060:45-52. [DOI: 10.1016/j.aca.2019.01.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/04/2019] [Accepted: 01/16/2019] [Indexed: 12/27/2022]
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Cauduro VH, Doneda M, Barin JS, Mello PA, Flores EM, Picoloto RS. Successive digestions for pre-concentration and ultra-trace determination of Br and I by plasma-based atomic spectrometry and ion chromatography. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Farebrother J, Zimmermann MB, Andersson M. Excess iodine intake: sources, assessment, and effects on thyroid function. Ann N Y Acad Sci 2019; 1446:44-65. [PMID: 30891786 DOI: 10.1111/nyas.14041] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/30/2019] [Accepted: 02/02/2019] [Indexed: 12/15/2022]
Abstract
Iodine is essential for thyroid hormone synthesis. High iodine intakes are well tolerated by most healthy individuals, but in some people, excess iodine intakes may precipitate hyperthyroidism, hypothyroidism, goiter, and/or thyroid autoimmunity. Individuals with preexisting thyroid disease or those previously exposed to iodine deficiency may be more susceptible to thyroid disorders due to an increase in iodine intake, in some cases at intakes only slightly above physiological needs. Thyroid dysfunction due to excess iodine intake is usually mild and transient, but iodine-induced hyperthyroidism can be life-threatening in some individuals. At the population level, excess iodine intakes may arise from consumption of overiodized salt, drinking water, animal milk rich in iodine, certain seaweeds, iodine-containing dietary supplements, and from a combination of these sources. The median urinary iodine concentration (UIC) of a population reflects the total iodine intake from all sources and can accurately identify populations with excessive iodine intakes. Our review describes the association between excess iodine intake and thyroid function. We outline potential sources of excess iodine intake and the physiological responses and consequences of excess iodine intakes. We provide guidance on choice of biomarkers to assess iodine intake, with an emphasis on the UIC and thyroglobulin.
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Affiliation(s)
- Jessica Farebrother
- Human Nutrition Laboratory, Institute of Food, Nutrition, and Health, ETH Zurich, Zurich, Switzerland.,Department of Women and Children's Health, King's College London, London, UK
| | - Michael B Zimmermann
- Human Nutrition Laboratory, Institute of Food, Nutrition, and Health, ETH Zurich, Zurich, Switzerland.,Iodine Global Network, Ottawa, Ontario, Canada
| | - Maria Andersson
- Human Nutrition Laboratory, Institute of Food, Nutrition, and Health, ETH Zurich, Zurich, Switzerland.,Iodine Global Network, Ottawa, Ontario, Canada.,Division of Gastroenterology and Nutrition, University Children's Hospital Zurich, Zurich, Switzerland
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High iodine content in local animal milk and risk of exceeding EFSA upper intake level for iodine among Saharawi women. PLoS One 2019; 14:e0212465. [PMID: 30768637 PMCID: PMC6377136 DOI: 10.1371/journal.pone.0212465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 02/01/2019] [Indexed: 11/19/2022] Open
Abstract
Excessive iodine intake is a major public health problem in the Saharawi refugee camps in Algeria, where animal milk is an important source of iodine. The purpose of this study was to assess the association between iodine concentrations in locally produced animal milk and in animal drinking water and further to assess the risk of exceeding European Food Safety Authority (EFSA) tolerable upper intake level for iodine (600 μg/d) among Saharawi women. In 2009 and 2010, 202 milk samples from goats and sheep and 52 milk samples from camel were collected. Iodine in milk was determined by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). In addition, iodine in 56 water samples from the general water system and 54 water samples from wells, was determined by modified Sandell-Kolthoff reaction. Animal milk is generally consumed mixed with water. The median (min, max) iodine intake from goat/sheep milk mixed with water in camps with high iodine content in human drinking water was 284 (57, 2889) μg/d and 19% of participants exceeded EFSA upper intake level for iodine. The median (min, max) iodine intake from camel milk mixed with water in all camps was 2100 (210, 11100) and 47% of participants exceeded the EFSA upper intake level. The median (min, max) iodine content in goat/sheep milk from camps with moderate and high iodine content in water was 507 (101, 4791) μg/L and 1612 (487, 9323) μg/L, respectively (p < 0.001). The iodine content in goat/sheep milk was positively associated with iodine content in animal drinking water (regression coefficient, B 5.71, 95% CI 4.03, 7.39). In conclusion, consumption of camel milk and living in camps with high water iodine content increased the risk of exceeding the EFSA upper intake level for iodine. We suggest that purified water for both human and animal consumption should be provided.
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Exploration of the appropriate recommended nutrient intake of iodine in healthy Chinese women: an iodine balance experiment. Br J Nutr 2018; 121:519-528. [DOI: 10.1017/s0007114518003653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractThere is a dearth of data on the iodine balance studies of Chinese population. In the present study, we aimed to explore the appropriate recommended nutrient intake (RNI) of iodine based on healthy Chinese women. A 4-week study was conducted in twenty-five Chinese euthyroid women. Uniform diets with different iodine contents were provided in two different periods, in which non-iodised salt was given in the first 3 weeks, followed by 1 week of iodised salt administration. The total iodine intake from diet, water and air as well as the total iodine excretion through urine, faeces and respiration were monitored and determined. The sweat iodine loss was also considered. Moreover, the regression curve model was established between the 24 h iodine intake and 24 h iodine excretion. The 24 h iodine intake in the two periods was 194·8 (sd 62·9) and 487·1 (sd 177·3) μg/d, respectively. The 24 h iodine excretion was 130·9 (sd 39·5) and 265·4 (sd 71·8) μg/d, respectively. Both 24 h iodine intake and 24 h iodine excretion of the two periods were significantly different (all P<0·05). The iodised salt contributed approximately 62·7 % of the total daily iodine intake. Moreover, 92·3 % (277/300) of samples were in positive balance, while twenty-three cases were in negative balance. Our data show that the estimated average requirement for iodine was 110·5 μg/d. Therefore, the RNI for iodine to non-pregnant, non-lactating Chinese women was 154·7 μg/d.
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40
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Zhang B, He Y, Fan Z. Nitrogen-doped graphene quantum dots as highly sensitive and selective fluorescence sensor detection of iodide ions in milk powder. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.09.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Redecillas S, Moráis A, Marques I, Moreno-Villares JM. WITHDRAWN: Recommendations on vegetarian diet in infants and children. ANALES DE PEDIATRÍA (ENGLISH EDITION) 2018. [DOI: 10.1016/j.anpede.2018.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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42
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Redecillas S, Moráis A, Marques I, Moreno-Villares JM. Guía de recomendaciones sobre las dietas vegetarianas en niños. An Pediatr (Barc) 2018:S1695-4033(18)30363-1. [PMID: 30385078 DOI: 10.1016/j.anpedi.2018.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 09/27/2018] [Indexed: 11/25/2022] Open
Affiliation(s)
- Susana Redecillas
- Unidad de Gastroenterología, Hepatología, Soporte Nutricional y Trasplante Hepático Pediátrico, Hospital Universitari Vall d'Hebron, Barcelona, España
| | - Ana Moráis
- Unidad de Nutrición Infantil y Enfermedades Metabólicas. Hospital Universitario La Paz, Madrid, España
| | - Iva Marques
- Facultad de Ciencias de la Salud y Deporte, Universidad de Zaragoza, Zaragoza, España
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Novo DLR, Mello JE, Rondan FS, Henn AS, Mello PA, Mesko MF. Bromine and iodine determination in human saliva: Challenges in the development of an accurate method. Talanta 2018; 191:415-421. [PMID: 30262078 DOI: 10.1016/j.talanta.2018.08.081] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/27/2018] [Accepted: 08/28/2018] [Indexed: 01/24/2023]
Abstract
In this work, an analytical method for bromine and iodine determination in human saliva was proposed. A simple protocol based on centrifugation and direct analysis of supernatant by inductively coupled plasma mass spectrometry (ICP-MS) was investigated. Although this method was feasible for bromine determination, iodine was partially present in the supernatant and an agreement about 54% with reference value was obtained. In addition, microwave-induced combustion (MIC) and microwave-assisted dissolution were also evaluated. Using MIC, 0.2 mL of saliva added on 300 mg of microcrystalline cellulose were efficiently digested. A diluted solution (50 mmol L-1 NH4OH) was used for analytes absorption, and a reflux step of 5 min was applied to ensure quantitative recoveries of Br and I. Accuracy was evaluated by analyte recovery experiments, and recoveries between 94% and 98% were obtained. Microwave-assisted dissolution was evaluated for 2.0 mL of saliva using also a diluted alkaline solution (25 mmol L-1 NH4OH) and a microwave irradiation program of 35 min (including the cooling step). Results for this method agreed with those obtained using MIC. Although MIC has also been appropriated for further determination of Br and I in saliva, microwave-assisted dissolution can be considered a simpler sample preparation method and it was effective for high amount of sample (up to 2.0 mL). Moreover, final solutions were compatible with ICP-MS analysis, allowing the quantification of Br and I in human saliva at ultra-trace concentrations (limits of quantification were 0.052 μg mL-1 for Br and 0.022 μg mL-1 for I).
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Affiliation(s)
- Diogo La Rosa Novo
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, 96160-000 Capão do Leão, RS, Brazil
| | - Julia Eisenhardt Mello
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, 96160-000 Capão do Leão, RS, Brazil
| | - Filipe Soares Rondan
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, 96160-000 Capão do Leão, RS, Brazil
| | | | - Paola Azevedo Mello
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Marcia Foster Mesko
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, 96160-000 Capão do Leão, RS, Brazil.
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Liu H, Wang L, Zeng Q, Zhao L, Cui Y, Hou C, Zhang B, Zhang Z, Zhang S, Chen X, Wang A. Oxidative stress-mediated autophagic cell death participates in the neurotoxic effect on SH-SY5Y cells induced by excessive iodide. ENVIRONMENTAL TOXICOLOGY 2018; 33:851-860. [PMID: 29923297 DOI: 10.1002/tox.22571] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 04/05/2018] [Accepted: 04/10/2018] [Indexed: 06/08/2023]
Abstract
Excessive iodide could induce intellectual damage in children, which has attracted broad attention. To investigate the neurotoxic effect of iodide and its mechanism, a human dopaminergic neuroblastoma cell line (SH-SY5Y) was treated with different concentrations of potassium iodide (KI). The results showed that excessive iodide could decrease cell viability, reduce glutathione (GSH) and superoxide dismutase (SOD), and increase the degree of autophagy (by changing the cellular ultrastructure and raising the autophagy-related mRNA and protein expression of LC3, Beclin1, and p62), which were correlated with the immunofluorescence labeling. Furthermore, treatment with the autophagy inhibitor 3-methyladenine (3MA), antioxidant N-acetylcysteine (NAC) and 30 mM KI for 24 h was conducted in the following research. 3MA significantly decreased autophagy-related mRNA and protein expression and improved cell viability, indicating that excess iodide induced autophagic cell death. In addition, oxidative stress regulated autophagy, reflected by the results that NAC decreased the mRNA and protein expression of LC3, Beclin1, and p62. In summary, autophagic cell death mediated by oxidative stress may participate in excessive iodide-induced SH-SY5Y cell death.
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Affiliation(s)
- Hongliang Liu
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, People's Republic of China
- School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, HepingDistrict, Tianjin, 300070, People's Republic of China
- Tianjin Municipal Inspection Bureau for Health and Family Planning, 94 Guizhou Road, Heping District, Tianjin, 300070, People's Republic of China
| | - Lingzhi Wang
- Department of Quality Control, The First Affiliated Hospital of Zhejiang University, School of Medcine, Hangzhou, Zhejiang, China
| | - Qiang Zeng
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, People's Republic of China
| | - Liang Zhao
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, People's Republic of China
| | - Yushan Cui
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, People's Republic of China
| | - Changchun Hou
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, People's Republic of China
| | - Bin Zhang
- School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, HepingDistrict, Tianjin, 300070, People's Republic of China
| | - Zushan Zhang
- School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, HepingDistrict, Tianjin, 300070, People's Republic of China
| | - Shun Zhang
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong Universityof Science and Technology, 13 Hangkong Road, Hubei, Wuhan, 430030, People's Republic of China
| | - Xuemin Chen
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong Universityof Science and Technology, 13 Hangkong Road, Hubei, Wuhan, 430030, People's Republic of China
| | - Aiguo Wang
- Department of Environmental Health and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong Universityof Science and Technology, 13 Hangkong Road, Hubei, Wuhan, 430030, People's Republic of China
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45
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Temple LM, Saigal P. Hypothyroidism. Integr Med (Encinitas) 2018. [DOI: 10.1016/b978-0-323-35868-2.00034-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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46
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Purkait R, Dey S, Sinhaa C. A multi-analyte responsive chemosensor vanilinyl Schiff base: fluorogenic sensing of Zn(ii), Cd(ii) and I−. NEW J CHEM 2018. [DOI: 10.1039/c8nj03165g] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A single fluorescence probe recognizes multiple ions and grabs the great attention of scientists.
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Affiliation(s)
- Rakesh Purkait
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | - Sunanda Dey
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
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47
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Kim HI, Oh HK, Park SY, Jang HW, Shin MH, Kim SW, Kim TH, Chung JH. Urinary iodine concentration and thyroid hormones: Korea National Health and Nutrition Examination Survey 2013-2015. Eur J Nutr 2017; 58:233-240. [PMID: 29188371 DOI: 10.1007/s00394-017-1587-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 11/21/2017] [Indexed: 01/20/2023]
Abstract
PURPOSE An epidemiologic study that evaluated population's iodine nutrition status and its relationship with thyroid hormones is lacking in iodine-sufficient area. This nationwide study aimed to evaluate the iodine nutrition status in Korea and relationship between urine iodine concentration (UIC) and thyroid hormones. METHODS A total of 8318 subjects of the Korea National Health and Nutrition Examination Survey VI (2013-2015) with UIC and thyroid hormone evaluation were included. Median UIC level and estimated 24-h iodine intake were calculated. The prevalence of iodine deficiency or excess was obtained using estimated average requirement or above the tolerable upper intake level cut-point method by estimated iodine intake. We analyzed UIC with regard to age, sex, social economic status, and geographic characteristics. RESULTS The median UIC in general population and estimated iodine intake in adult population were 293.9 μg/L (above requirement according to World Health Organization classification) and 249.3μg/day, respectively. The prevalence of iodine deficiency and excess was 14.0 and 13.4%. The median UIC was higher among SAC [511 (299.9-948.5)] and lower among seventies [251.2 (98.9-761.6)] compared to other age groups. The median UIC increased with household income level (p for trend < 0.001). The subjects living in rural and inland region had lowest UIC among the enrolled subjects. The subgroups with higher median UIC were associated with higher mean TSH levels. CONCLUSIONS This first nationwide study in Korea demonstrated that the median of UIC and estimated iodine intake lie at nearly 300 µg/L and 250 µg/day, respectively, which shows an overall excellent iodine nutrition.
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Affiliation(s)
- Hye In Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - Hyun-Kyung Oh
- Department of Social and Preventive Medicine, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - So Young Park
- Division of Endocrinology and Metabolism, Department of Medicine, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - Hye Won Jang
- Department of Medical Education, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Myung-Hee Shin
- Department of Social and Preventive Medicine, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Sun Wook Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - Tae Hyuk Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea.
| | - Jae Hoon Chung
- Division of Endocrinology and Metabolism, Department of Medicine, Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea.
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Domínguez-González MR, Chiocchetti GM, Herbello-Hermelo P, Vélez D, Devesa V, Bermejo-Barrera P. Evaluation of Iodine Bioavailability in Seaweed Using in Vitro Methods. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:8435-8442. [PMID: 28853868 DOI: 10.1021/acs.jafc.7b02151] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Due to the high levels of iodine present in seaweed, the ingestion of a large amount of this type of food can produce excessive intake of iodine. However, the food after ingestion undergoes different chemistry and physical processes that can modify the amount of iodine that reaches the systemic circulation (bioavailability). Studies on the bioavailability of iodine from food are scarce and indicate that the bioavailable amount is generally lower than ingested. Iodine in vitro bioavailability estimation from different commercialized seaweed has been studied using different in vitro approaches (solubility, dialyzability, and transport and uptake by intestinal cells). Results indicate that iodine is available after gastrointestinal digestion for absorption (bioaccessibility: 49-82%), kombu being the seaweed with the highest bioaccessibility. The incorporation of dialysis cell cultures to elucidate bioavailability modifies the estimation of the amount of iodine that may reach the systemic circulation (dialysis, 5-28%; cell culture, ≤3%). The paper discusses advantages and drawbacks of these methodologies for iodine bioavailability in seaweed.
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Affiliation(s)
- M Raquel Domínguez-González
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , 15782 Santiago de Compostela, Spain
| | - Gabriela M Chiocchetti
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Paloma Herbello-Hermelo
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , 15782 Santiago de Compostela, Spain
| | - Dinoraz Vélez
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Vicenta Devesa
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Pilar Bermejo-Barrera
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela , 15782 Santiago de Compostela, Spain
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49
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Determination of bromine and iodine in edible flours by inductively coupled plasma mass spectrometry after microwave-induced combustion. Microchem J 2017. [DOI: 10.1016/j.microc.2017.03.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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50
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Wang Z, Su X, Liu P, Liu S. Dynamic Changes in the Bivariable Distribution of Urinary Iodine Concentration and Thyroid Volume in Children Aged 8 to 10 Years in China. Asia Pac J Public Health 2017; 29:288-295. [DOI: 10.1177/1010539517709027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
National iodine-deficiency disorder surveillance surveys were conducted in 1999, 2005, and 2011 in China. Probability-proportional-to-size sampling technique was used to select sampling units. The mean of thyroid volume (Tvol) in the 100 to 199 µg/L UIC (urinary iodine concentration) group was significantly lower than that in the 200 to 299 µg/L UIC group in 2011 ( P < .05). The status in the 100 to 199 µg/L versus ≥300 µg/L and 200 to 299 µg/L versus ≥300 µg/L groups in 1999, and 100 to 199 µg/L versus ≥300 µg/L group in 2011 were the same ( P < .05). The mean Tvol in the <100 µg/L UIC group was significantly higher than that in the 100 to 199 µg/L UIC group in 1999 ( P < .05). Both insufficient and excess iodine may be associated with an increase in Tvol, and adequate iodine intake should be defined as median UIC 100 to 299 µg/L.
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Affiliation(s)
| | - Xiaohui Su
- Harbin Medical University, Harbin, HL, China
| | - Peng Liu
- Harbin Medical University, Harbin, HL, China
| | - Shoujun Liu
- Harbin Medical University, Harbin, HL, China
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