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Thyroid and pregnancy

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https://www.readbyqxmd.com/read/29667177/adverse-placental-effects-of-valproic-acid-studies-in-perfused-human-placentas
#1
Miriam Rubinchik-Stern, Miriam Shmuel, Jacob Bar, Michal Kovo, Sara Eyal
OBJECTIVE: In utero exposure to valproic acid (VPA) has been associated with worse pregnancy outcomes compared to all other antiepileptic drugs. We have previously shown that VPA alters the expression of placental transporters for hormones and nutrients in vitro and in pregnant mice. Here, our aim was to characterize the effects of short exposure to VPA on the expression of carriers for compounds essential for fetal development in human placentas ex vivo, under controlled conditions...
April 17, 2018: Epilepsia
https://www.readbyqxmd.com/read/29659964/universal-salt-iodization-provides-sufficient-dietary-iodine-to-achieve-adequate-iodine-nutrition-during-the-first-1000-days-a-cross-sectional-multicenter-study
#2
Susanne Dold, Michael B Zimmermann, Tomislav Jukic, Zvonko Kusic, Qingzhen Jia, Zhongna Sang, Antonio Quirino, Teofilo O L San Luis, Ralph Fingerhut, Roland Kupka, Arnold Timmer, Greg S Garrett, Maria Andersson
Background: Dietary iodine requirements are high during pregnancy, lactation, and infancy, making women and infants vulnerable to iodine deficiency. Universal salt iodization (USI) has been remarkably successful for preventing iodine deficiency in the general population, but it is uncertain if USI provides adequate iodine intakes during the first 1000 d. Objective: We set out to assess if USI provides sufficient dietary iodine to meet the iodine requirements and achieve adequate iodine nutrition in all vulnerable population groups...
April 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29645066/intellectual-performance-of-children-of-mothers-with-an-untreated-thyroid-disorder-in-the-first-pregnancy-trimester
#3
Irena Komendová, Sylvie Špitálníková
INTRODUCTION: The focus of the present study was the importance of the mother's thyroid function for foetal development in the first trimester, when the baby is totally dependent on the mother for thyroid hormones. MATERIAL AND METHODS: The study consisted in testing the intellectual performance of children with both euthyroid and thyroid-dysfunction mothers. The experimental group comprised 60 children of mothers with an untreated thyroid disorder in the first trimester of their pregnancy (TSH≥3...
April 12, 2018: Endokrynologia Polska
https://www.readbyqxmd.com/read/29644934/management-of-subclinical-hypothyroidism-in-pregnancy-a-comment-from-the-italian-society-of-endocrinology-sie-and-the-italian-thyroid-association-ait-to-the-2017-ata-guidelines-the-italian-way
#4
Mario Rotondi, Luca Chiovato, Furio Pacini, Luigi Bartalena, Paolo Vitti
The 2017 ATA Guidelines for the Diagnosis and Management of Thyroid Disease During Pregnancy and the Postpartum were published six years after the previous ones. They provide comprehensive clinical recommendations for the whole spectrum of thyroid diseases as well as for optimal iodine intake during pregnancy, post-partum and lactation. The present position statement mainly regards the recommended flow-chart for therapeutic decision making in pregnant women being diagnosed with subclinical hypothyroidism. The major biochemical and clinical situations and the corresponding therapeutic indications will be commented...
April 12, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29643159/role-of-iodine-containing-multivitamins-during-pregnancy-for-children-s-brain-function-protocol-of-an-ongoing-randomised-controlled-trial-the-swiddich-study
#5
Sofia Manousou, Birgitta Johansson, Anna Chmielewska, Janna Eriksson, Kerstin Gutefeldt, Carl-Johan Tornhage, Robert Eggertsen, Helge Malmgren, Lena Hulthen, Magnus Domellöf, Helena Nystrom Filipsson
INTRODUCTION: Iodine is essential for normal brain development. Moderate and severe fetal iodine deficiency results in substantial to serious developmental delay in children. Mild iodine deficiency in pregnancy is associated with neurodevelopmental deficits in the offspring, but evidence from randomised trials is lacking. The aim of the Swedish Iodine in Pregnancy and Development in Children study is to determine the effect of daily supplementation with 150 µg iodine during pregnancy on the offspring's neuropsychological development up to 14 years of age...
April 10, 2018: BMJ Open
https://www.readbyqxmd.com/read/29642923/association-of-maternal-serum-lipids-at-late-gestation-with-the-risk-of-neonatal-macrosomia-in-women-without-diabetes-mellitus
#6
Xiangxiang Wang, Qingbo Guan, Jiajun Zhao, Feifei Yang, Zhongshang Yuan, Yongchao Yin, Rui Fang, Lingwei Liu, Changting Zuo, Ling Gao
BACKGROUND: Macrosomia is a serious public health problem worldwide due to its increasing prevalence and adverse influences on maternal and neonatal outcomes. Maternal dyslipidemia exerts potential and adverse impacts on pregnant women and newborns. However, the association between maternal serum lipids and the risk of macrosomia has not yet been clearly elucidated. We explored the association between the maternal lipids profile at late gestation and the risk of having macrosomia among women without diabetes mellitus (DM)...
April 11, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29627605/evaluation-of-bisphenol-a-influence-on-endocannabinoid-system-in-pregnant-women
#7
Monika Zbucka-Kretowska, Robert Zbucki, Ewa Parfieniuk, Maciej Maslyk, Urszula Lazarek, Wojciech Miltyk, Jan Czerniecki, Slawomir Wolczynski, Adam Kretowski, Michal Ciborowski
Bisphenol A (BPA) is a synthetic chemical widely used in the industry, which may potentially evoke negative effects on human health, especially on reproductive processes and fetal development. BPA has been reported to act on estrogen, estrogen-related, androgen, thyroid hormone, pregnane X, peroxisome proliferation-activated, and aryl hydrocarbon receptors. However, other potential mechanisms of BPA action on pregnancy cannot be excluded. Comprehensive evaluation of BPA effect on pregnant women can be performed by use of metabolomics...
March 30, 2018: Chemosphere
https://www.readbyqxmd.com/read/29619339/abortion-may-be-associated-with-elevated-risk-of-future-hypothyroidism
#8
Vivek Chauhan, Anurag Thakur, Gurudutt Sharma
Objective: Fetal microchimerism during pregnancy and abortion has been linked with autoimmune hypothyroidism in females. We conducted a case-control study to investigate the odds of "abortion in the past" in the newly diagnosed hypothyroid females compared to their age-matched euthyroid controls. Methods: All consecutive newly diagnosed hypothyroid females, over 1 year, were enrolled as cases. Age-matched euthyroid controls were selected from the same region...
January 2018: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/29617370/metabolic-and-hormonal-adaptation-in-bubalus-bubalis-around-calving-and-early-lactation
#9
Enrico Fiore, Francesca Arfuso, Matteo Gianesella, Domenico Vecchio, Massimo Morgante, Elisa Mazzotta, Tamara Badon, Pasquale Rossi, Silvia Bedin, Giuseppe Piccione
Pregnancy and lactation are physiological periods that result in an increased metabolic demand that, if not satisfied, could provoke a threat to homeostasis. In this study changes in the values of Non-Esterified Fatty Acids (NEFA) and β-hydroxybutyrate (BHB), glucose, insulin, thyroid hormones, milk composition and yield were investigated in buffaloes during the late pregnancy and early lactation. From a total of 50 buffaloes, blood samples were collected -7±5 days before expected calving; +7±5; +30±5 and +50±5 days post-partum; milk samples were collected at the same post-partum time points...
2018: PloS One
https://www.readbyqxmd.com/read/29611183/maternal-environment-and-craniofacial-growth-geometric-morphometric-analysis-of-mandibular-shape-changes-with-in-utero-thyroxine-overexposure-in-mice
#10
Matthew J Kesterke, Margaret A Judd, Mark P Mooney, Michael I Siegel, Mohammed Elsalanty, R Nicole Howie, Seth M Weinberg, James J Cray
An estimated 3% of US pregnancies are affected by maternal thyroid dysfunction, with between one and three of every 1000 pregnancies being complicated by overactive maternal thyroid levels. Excess thyroid hormones are linked to neurological impairment and excessive craniofacial variation, affecting both endochondral and intramembranous bone. Using a geometric morphometric approach, this study evaluates the role of in utero thyroxine overexposure on the growth of offspring mandibles in a sample of 241 mice. Canonical variate analysis utilized 16 unilateral mandibular landmarks obtained from 3D micro-computed tomography to assess shape changes between unexposed controls (n = 63) and exposed mice (n = 178)...
April 2, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29610606/thyroid-function-and-25-oh-vitamin-d-level-among-sudanese-women-in-early-pregnancy
#11
Imad R Musa, Duria A Rayis, Mohmamed A Ahmed, Ammar H Khamis, Abubakr M Nasr, Ishag Adam
AIM: A cross-sectional study was conducted at Saad Abualila Hospital (Khartoum, Sudan) to evaluate the vitamin D levels and thyroid function among pregnant Sudanese women (132) in early pregnancy. METHODS: A cross-sectional study was conducted at Saad Abualila hospital (Khartoum, Sudan) during the period from March to July 2015. Women who were in early pregnancy with a singleton pregnancy were approached to participate in the study after signing informed consent...
March 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29607233/preterm-parturient-with-polyhydramnios-and-pancreatitis-primary-presentation-of-hyperparathyroidism
#12
Esther S Han, Katherine Fritton, Phoebe Bacon, Martin K Slodzinski, Cynthia Argani
Objective: To report a case of severe hypercalcemia secondary to primary hyperparathyroidism in a late-preterm pregnant patient and review medical and surgical treatments as well as obstetric and neonatal outcomes. Background: Diagnosis of parathyroid disease during pregnancy can be difficult due to nonspecific presentation. Management decisions are complex and require multidisciplinary collaboration. Case: A 29-year-old G2P1001 woman at 35 weeks and 3 days' gestation presented with preterm contractions, polyhydramnios, pancreatitis, and severe hypercalcemia...
2018: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29606598/maternal-urinary-phthalate-metabolites-during-pregnancy-and-thyroid-hormone-concentrations-in-maternal-and-cord-sera-the-home-study
#13
Megan E Romano, Melissa N Eliot, R Thomas Zoeller, Andrew N Hoofnagle, Antonia M Calafat, Margaret R Karagas, Kimberly Yolton, Aimin Chen, Bruce P Lanphear, Joseph M Braun
BACKGROUND: Phthalates, endocrine-disrupting chemicals that are commonly found in consumer products, may adversely affect thyroid hormones, but findings from prior epidemiologic studies are inconsistent. OBJECTIVES: In a prospective cohort study, we investigated whether maternal urinary phthalate metabolite concentrations and phthalate mixtures measured during pregnancy were associated with thyroid hormones among pregnant women and newborns. METHODS: We measured nine phthalate metabolites [monoethyl phthalate (MEP), mono-n-butyl phthalate, mono-isobutyl phthalate, monobenzyl phthalate (MBzP), and four monoesthers of di(2-ethylhexyl) phthalate] in urine collected at approximately 16 and 26 weeks' gestation among women in the Health Outcomes and Measures of the Environment Study (2003-2006, Cincinnati, Ohio)...
March 23, 2018: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29606182/review-dairy-foods-red-meat-and-processed-meat-in-the-diet-implications-for-health-at-key-life-stages
#14
D I Givens
Social and health care provision have led to substantial increases in life expectancy. In the UK this has become higher than 80 years with an even greater proportional increase in those aged 85 years and over. The different life stages give rise to important nutritional challenges and recent reductions in milk consumption have led to sub-optimal intakes of calcium by teenage females in particular when bone growth is at its maximum and of iodine during pregnancy needed to ensure that supply/production of thyroid hormones to the foetus is adequate...
April 2, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29605392/prediction-of-neonatal-hyperthyroidism
#15
Maïa Banigé, Michel Polak, Dominique Luton
OBJECTIVES: To assess whether it is possible to identify the neonatal predictors of neonatal hyperthyroidism at the presymptomatic stage of the disease. STUDY DESIGN: This retrospective multicenter study in 10 maternity units was based on the medical records of all patients monitored for a pregnancy between January 1, 2007, and January 1, 2014. Among 280 000 births, 2288 medical records of women with thyroid dysfunction were selected and screened. Of these, 415 women had Graves disease and were positive for thyrotropin receptor antibody during pregnancy, and were included...
March 28, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29589552/evaluation-and-management-of-the-child-with-thyrotoxicosis
#16
Alexander K C Leung, Alexander A C Leung
BACKGROUND: Uncontrolled thyrotoxicosis, especially in early infancy, may cause irreversible damage to the central nervous system as well as profound effects on the function of many organs. Thyrotoxicosis has multiple etiologies and treatment depends on the underlying etiology. An accurate diagnosis is essential so that appropriate treatment can be initiated without undue delay. OBJECTIVE: To review in depth the evaluation, diagnosis, and treatment of children with thyrotoxicosis...
March 26, 2018: Recent Patents on Endocrine, Metabolic & Immune Drug Discovery
https://www.readbyqxmd.com/read/29587423/iodine-and-pregnancy-a-qualitative-study-focusing-on-dietary-guidance-and-information
#17
Maria Bouga, Michael E J Lean, Emilie Combet
Iodine is essential for thyroid hormones synthesis and normal neurodevelopment; however, ~60% of pregnant women do not meet the WHO (World Health Organization) recommended intake. Using a qualitative design, we explored the perceptions, awareness, and experiences of pregnancy nutrition, focusing on iodine. Women in the perinatal period ( n = 48) were interviewed and filled in a food frequency questionnaire for iodine. Almost all participants achieved the recommended 150 μg/day intake for non-pregnant adults (99%), but only 81% met the increased demands of pregnancy (250 μg/day)...
March 26, 2018: Nutrients
https://www.readbyqxmd.com/read/29584590/maternal-thyroid-function-in-early-pregnancy-and-child-neurodevelopmental-disorders-a-danish-nationwide-case-cohort-study
#18
Stine Linding Andersen, Stig Andersen, Peter Vestergaard, Jørn Olsen
BACKGROUND: Maternal thyroid dysfunction may adversely affect fetal brain development, but more evidence is needed to refine this hypothesis. The aim of this study was to evaluate potential fetal programming by abnormal maternal thyroid function on child neurodevelopmental disorders. METHODS: The design was a case-cohort study within the Danish National Birth Cohort (1997-2003). From the eligible cohort of 71,706 women, a random 12% sub-cohort (n = 7624) was selected, and all women (n = 2276) whose child was diagnosed with seizures, specific developmental disorder (SDD), autism spectrum disorder (ASD), and/or attention-deficit/hyperactivity disorder (ADHD) up to December 31, 2010, were identified...
March 27, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29572405/thyroid-disrupting-chemicals-and-brain-development-an-update
#19
Bilal B Mughal, Jean-Baptiste Fini, Barbara Demeneix
This review covers recent findings on the main categories of thyroid hormone disrupting chemicals and their effects on brain development. We draw mostly on epidemiological and experimental data published in the last decade. For each chemical class considered, we deal with not only the thyroid hormone disrupting effects but also briefly mention the main mechanisms by which the same chemicals could modify estrogen and/or androgen signalling, thereby exacerbating adverse effects on endocrine-dependent developmental programs...
March 23, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29569122/impact-of-maternal-thyroid-autoantibodies-positivity-on-the-risk-of-early-term-birth-ma-anshan-birth-cohort-study
#20
Yan Han, Lei-Jing Mao, Xing Ge, Kun Huang, Shuang-Qin Yan, Ling-Ling Ren, Shu-Qing Hong, Hui Gao, Jie Sheng, Yuan-Yuan Xu, Wei-Jun Pan, Peng Zhu, Jia-Hu Hao, De-Fa Zhu, Fang-Biao Tao
PURPOSE: We aim to investigate associations of maternal serum anti-thyroperoxidase autoantibody (TPOAb) with duration of gestation. We aim to investigate whether maternal TPOAb positivity is associated with the risk of premature or early term birth. METHODS: This was a prospective birth cohort study performed in an iodine sufficient area of China. Serum samples were collected from 2931 women at both the first and second trimesters of pregnancy. Thyrotropin (TSH), free thyroxine (FT4), and TPOAb levels were measured...
March 22, 2018: Endocrine
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