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https://www.readbyqxmd.com/read/28639966/risk-of-embryopathies-with-use-of-antithyroidal-medications
#1
Stine L Andersen
PURPOSE OF REVIEW: Hyperthyroidism in pregnant women should be adequately treated to prevent maternal and fetal complications. The treatment of choice in pregnancy is antithyroidal medications (ATDs). The risk of embryopathies associated with the use of Methimazole (MMI) and Propylthiouracil (PTU) in early pregnancy is a matter of clinical attention and concern. This review describes current evidence and how scientific findings are reflected in current clinical guidelines. RECENT FINDINGS: Embryopathies after the use of ATDs were previously mainly described in case reports and considered rare...
July 20, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/28639240/approach-to-thyroid-carcinoma-in-pregnancy
#2
Cristina Modesti, Paola Aceto, Lucia Masini, Celestino Pio Lombardi, Rocco Bellantone, Liliana Sollazzi
Thyroid carcinoma is the first cancer found in general population and the second diagnosed during pregnancy following the breast one. Diagnostic and therapeutic approaches to thyroid malignancy in pregnant women pose several and serious issues to the physicians. Even if there is no consensus about the surgical treatment of thyroid carcinomas during pregnancy, a large number of women undergo surgery over the world. The best surgical and anesthesiological treatment should be chosen after reaching a consensus between surgeons, anesthesiologists, obstetrics, and the patients...
June 22, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28628864/polybrominated-diphenyl-ethers-pbdes-and-thyroid-hormones-in-cord-blood
#3
Guodong Ding, Jing Yu, Limei Chen, Caifeng Wang, Yijun Zhou, Yi Hu, Rong Shi, Yan Zhang, Chang Cui, Yu Gao, Ying Tian, Fang Liu
Human exposure to polybrominated diphenyl ethers (PBDEs) has been increasing over the last three decades in China and around the world. Animal studies suggest that PBDEs could reduce blood levels of thyroid hormones, but it is unclear whether PBDEs disrupt thyroid function in humans. We used data from a prospective birth cohort of 123 pregnant women who were enrolled between September 2010 and March 2011 in Shandong, China. We measured the concentrations of eight PBDE congeners (n = 106) and five thyroid hormones (n = 107) in cord serum samples...
June 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28616924/-reference-intervals-of-thyroid-hormones-in-normal-pregnant-women-and-effects-of-thyroid-autoantibodies-on-thyroid-hormone-levels-in-pregnant-women-in-chengdu-area
#4
Yu-Min Chen, Jing Zeng, Yue-Rong Yan, Dan Luo, Lu Huang, Hui Huang
OBJECTIVES: To establish the reference intervals of thyroid hormones in normal pregnant women in Chengdu area of China, and to investigate the effects of thyroid autoantibodies on thyroid function in pregnant women. METHODS: We included 696 pregnant women who had gestation data from June 2013 to March 2014 in Chengdu Women & Children's Central Hospital. Every subject under went questionnaire survey, physical examination, thyroid ultrasound and measurement of thyroid hormone and thyroid autoantibodies...
May 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28615379/daily-consumption-of-lipid-based-nutrient-supplements-containing-250-%C3%AE-g-iodine-does-not-increase-urinary-iodine-concentrations-in-pregnant-and-postpartum-women-in-bangladesh
#5
Malay K Mridha, Susana L Matias, Rina Rani Paul, Sohrab Hussain, Md Showkat Ali Khan, Zakia Siddiqui, Barkat Ullah, Mostofa Sarker, Mokbul Hossain, Rebecca T Young, Charles D Arnold, Kathryn G Dewey
Background: Maternal iodine deficiency during pregnancy and lactation is common in Bangladesh.Objective: We evaluated the effect of lipid-based nutrient supplements for pregnant and lactating women (LNS-PL) on urinary iodine concentration (UIC).Methods: We conducted a cluster-randomized controlled effectiveness trial in which we enrolled 4011 pregnant women at ≤20 gestational weeks. Women in 48 clusters received iron and folic acid (IFA; 60 mg Fe/d + 400 μg folic acid/d) and women in 16 clusters received LNS-PL (20 g/d, 118 kcal) containing 22 vitamins and minerals (including 250 μg I)...
June 14, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28611945/pregnant-greek-women-may-have-a-higher-prevalence-of-iodine-deficiency-than-the-general-greek-population
#6
Eftychia G Koukkou, Ioannis Ilias, Irene Mamalis, Kostas B Markou
BACKGROUND: Adequate dietary iodine consumption, predicted via the urinary iodine concentration (UIC), is necessary for normal thyroid function and for the neurodevelopment of fetuses and neonates. The general population of Greece is considered to be iodine sufficient, but our preliminary findings suggest that Greek pregnant women are at risk of iodine deficiency. OBJECTIVE: Our aim was to estimate the thyroid function and UIC in a representative population of pregnant Greek women...
February 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/28611576/maternal-different-degrees-of-iodine-deficiency-during-pregnant-and-lactation-impair-the-development-of-cerebellar-pinceau-in-offspring
#7
Jing Dong, Heling Song, Yuan Wang, Min Li, Ye Yu, Yi Wang, Jie Chen
Aims: Iodine is critical for synthesis of thyroid hormones (TH). And iodine deficiency (ID) is one of the most significant reasons of intellectual disability and motor memory impairment, although the potential mechanisms are still under investigation. Presently, mild ID and marginal ID are largely ignored problems for women of child bearing age. Mild ID is a subtle form of TH deficiency, which shows low levels of free thyroxine (FT4) and relatively normal free triiodothyronine (FT3) or thyroid stimulation hormone (TSH)...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28604338/intra-individual-variability-in-tsh-levels-of-healthy-women-during-the-first-half-of-pregnancy
#8
Mayte Murillo-Llorente, Carmen Fajardo-Montañana, Marcelino Pérez-Bermejo, Rafael Vila-Candel, José Gómez-Vela, Inés Velasco
OBJECTIVE: TSH is the parameter most widely accepted to assess thyroid function, especially in pregnant women. The aim of this current study was to analyze intra-individual changes in TSH during the first half of pregnancy in women with TSH levels higher than 2.5mIU/L in early pregnancy. METHODS: An observational, prospective study was conducted on 243 healthy pregnant women in the first trimester of pregnancy. Thyroid function was assessed by testing TSH and free T4 levels...
June 2017: Endocrinología, diabetes y nutrición
https://www.readbyqxmd.com/read/28601764/maternal-perchlorate-exposure-in-pregnancy-and-altered-birth-outcomes
#9
Rainbow Rubin, Michelle Pearl, Martin Kharrazi, Benjamin C Blount, Mark D Miller, Elizabeth N Pearce, Liza Valentin-Blasini, Gerald DeLorenze, Jane Liaw, Andrew N Hoofnagle, Craig Steinmaus
BACKGROUND: At high medicinal doses perchlorate is known to decrease the production of thyroid hormone, a critical factor for fetal development. In a large and uniquely exposed cohort of pregnant women, we recently identified associations between environmental perchlorate exposures and decreased maternal thyroid hormone during pregnancy. Here, we investigate whether perchlorate might be associated with birthweight or preterm birth in the offspring of these women. METHODS: Maternal urinary perchlorate, serum thyroid hormone concentrations, birthweight, gestational age, and urinary nitrate, thiocyanate, and iodide were collected in 1957 mother-infant pairs from San Diego County during 2000-2003, a period when the county's water supply was contaminated with perchlorate...
June 8, 2017: Environmental Research
https://www.readbyqxmd.com/read/28593684/thyroglobulin-level-at-week-16-of-pregnancy-is-superior-to-urinary-iodine-concentration-in-revealing-preconceptual-and-first-trimester-iodine-supply
#10
Monika Katko, Andrea Anett Gazso, Ildiko Hircsu, Harjit Pal Bhattoa, Zsuzsanna Molnar, Bela Kovacs, David Andrasi, Janos Aranyosi, Rita Makai, Lajos Veress, Olga Torok, Miklos Bodor, Laszlo Samson, Endre V Nagy
Pregnant women are prone to iodine deficiency due to the increased need for iodine during gestation. Progress has recently occurred in establishing serum thyroglobulin (Tg) as an iodine status biomarker, but there is no accepted reference range for iodine sufficiency during pregnancy. An observational study was conducted in 164 pregnant women. At week 16 of gestation urinary iodine concentration (UIC), serum Tg, and thyroid functions were measured, and information on the type of iodine supplementation and smoking were recorded...
June 7, 2017: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/28589089/reference-values-for-tsh-and-free-thyroid-hormones-in-healthy-pregnant-women-in-poland-a-prospective-multicenter-study
#11
Marta Kostecka-Matyja, Anna Fedorowicz, Ewa Bar-Andziak, Tomasz Bednarczuk, Monika Buziak-Bereza, Paulina Dumnicka, Maria Górska, Małgorzata Krasnodębska, Beata Niedźwiedzka, Dorota Pach, Marek Ruchała, Katarzyna Siewko, Bogdan Solnica, Jerzy Sowiński, Małgorzata Szelachowska, Małgorzata Trofimiuk-Müldner, Katarzyna Wachowiak-Ochmańska, Alicja Hubalewska-Dydejczyk
OBJECTIVES: The diagnosis and treatment of thyroid diseases in pregnant women remains a challenge. Various medical associations recommend establishing the reference intervals for thyroid hormones by a local laboratory. Considering differences within geophysical, socioeconomic conditions, and iodine prophylaxis in various populations, it is advisable to assess reference intervals for thyroid hormones specific to a region of residence. The objective was to assess trimester-specific reference intervals for TSH, fT3, and fT4 for pregnant women in the Polish population...
April 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/28588554/female-reproductive-factors-and-differentiated-thyroid-cancer
#12
REVIEW
Mariacarla Moleti, Giacomo Sturniolo, Maria Di Mauro, Marco Russo, Francesco Vermiglio
Differentiated thyroid cancer (DTC) is markedly more common in women than men, the highest female-to-male ratio being recorded during the reproductive period. This evidence has led to the suggestion that female hormonal and reproductive factors may account for the observed DTC gender disparity. This review focuses on current evidence on the risk of DTC in conjunction with major female reproductive factors, including the impact of pregnancy on DTC occurrence and progression/recurrence. Overall, studies exploring the link between the risk of DTC and menstrual and menopausal factors, oral contraceptives and/or hormone replacement therapy, showed these associations, if any, to be generally weak...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28582818/goitre-and-urinary-iodine-in-coastal-and-inland-areas-with-low-and-high-iodized-salt-coverage-in-zhejiang-province-china
#13
Zhe Mo, Xiao F Wang, Guang M Mao, Wen M Zhu, Pei W Xu, Yan Zou, Yuan Y Wang, Xiao M Lou
BACKGROUND AND OBJECTIVES: WHO recommended that iodized salt are more than 90% of households in USI programs, which may not be suitable for all regions, especially in coastal areas. This study intended to find out levels of iodine nutrition and give advice from the USI programs for areas with different iodized salt coverage. METHODS AND STUDY DESIGN: Coastal and inland areas were selected according to geographical regions in Zhejiang Province, China. The water iodine concentration (spectrophotometer analysis), salt iodine concentration (the colorimetric titration method), salt intake, urinary iodine concentration (spectrophotometer analysis), and thyroid volume examination (ultrasonography), as well as questionnaire, were measured in the two areas...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28571134/correlation-of-body-mass-index-bmi-with-thyroid-function-in-euthyroid-pregnant-women-in-manipur-india
#14
Sumit Kumar, T Chiinngaihlun, M Rameswar Singh, O Punyabati
INTRODUCTION: Body Mass Index (BMI) is significantly increased during pregnancy due to gain of weight with normal progression of pregnancy. The exact influence of thyroid function on BMI are ill defined in euthyroid pregnant women. AIM: To correlate serum levels of Free Triiodothyronine (FT3), Free Thyroxine (FT4) and Thyroid Stimulating Hormone (TSH) level with BMI of participant normal pregnant women in all the three trimesters. MATERIALS AND METHODS: In this cross-sectional comparative study, total of 210 healthy pregnant women comprising of 70 participants in each trimester, attending Obstetrics Outpatient Department (OPD) for antenatal check-up were consecutively selected...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28542464/maternal-low-thyroxin-levels-are-associated-with-adverse-pregnancy-outcomes-in-a-chinese-population
#15
Yong Zhang, Xiaobei Dai, Shuai Yang, Chen Zhang, Mi Han, He-Feng Huang, Jianxia Fan
Although thyroid dysfunction in early pregnancy may have adverse effects on pregnancy outcomes, few studies have examined the relationship between maternal low free thyroxin (FT4) levels in both first and third trimesters of pregnancy and the incidence of adverse pregnancy outcomes. We hypothesized that low FT4 levels in either first or third trimesters of pregnancy may have different effects on pregnancy outcomes. The study included 6,031 mothers who provided both first and third pregnancy serum samples for analyses of thyroid function...
2017: PloS One
https://www.readbyqxmd.com/read/28537582/thyroid-homeostasis-in-mother-child-pairs-in-relation-to-maternal-iodine-status-the-misa-study
#16
V Berg, T H Nøst, G Skeie, Y Thomassen, B Berlinger, A S Veyhe, R Jorde, J Ø Odland, S Hansen
BACKGROUND/OBJECTIVES: Iodine deficiency during pregnancy may influence maternal and foetal thyroid function with the risk of causing neurocognitive and psychomotor deficits in the offspring. The objective of this study was to assess iodine status in pregnant women from Northern Norway and to investigate the influence of iodine status on maternal and infant thyroid function. SUBJECTS/METHODS: Women from the Northern Norway Mother-and-Child contaminant Cohort Study (MISA) donated a blood and urine sample at three visits during their pregnancy and postpartum period (in second trimester, 3 days and 6 weeks after delivery...
May 24, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28521160/evidence-for-bisphenol-a-induced-disruption-of-maternal-thyroid-homeostasis-in-the-pregnant-ewe-at-low-level-representative-of-human-exposure
#17
Davy Guignard, Véronique Gayrard, Marlène Z Lacroix, Sylvie Puel, Nicole Picard-Hagen, Catherine Viguié
Many uncertainties remain regarding the potential of bisphenol A (BPA) as a thyroid disruptor in mammals and the relevance of experimental data to humans. The relevance of the exposure schemes used in experimental in vivo studies is also a major source of uncertainty when analysing the risk of BPA exposure for human health. In this context, the goals of our study, conducted in an ovine model relevant to human gestation and thyroid physiologies, were to: 1) determine the equivalence of subcutaneous and dietary exposures and 2) determine if environmentally relevant doses of BPA can alter gestational and newborn thyroid functions...
May 5, 2017: Chemosphere
https://www.readbyqxmd.com/read/28511580/deleterious-effects-from-occupational-exposure-to-ethylene-thiourea-in-pregnant-women
#18
Abby D Mutic, Brenda J Baker, Linda A McCauley
Human exposure to endocrine disrupting chemicals (EDCs) has become common as a result of widespread application of these chemicals to the food supply, environmental contamination, and occupational exposures (Caserta et al., 2011). However, relatively little is known about the effects of EDCs such as ethylene thiourea (ETU) in developing fetuses and the lasting implications of this disruption on human development from birth through adulthood. Of highest concern are chronic, low-dose exposures among industrial and agricultural workers...
May 1, 2017: Workplace Health & Safety
https://www.readbyqxmd.com/read/28500083/hepatic-thyroid-signaling-of-heat-stressed-late-pregnant-and-early-lactating-cows
#19
Joachim Weitzel, Thorsten Viergutz, Dirk Albrecht, Rupert M Bruckmaier, Marion Schmicke, Armin Tuchscherer, Franziska Koch, Björn Kuhla
During the transition between late gestation and early lactation dairy cows experience severe metabolic stress due to the high energy and nutrient requirements of the fetus and the mammary gland. Additional thermal stress as occurring with rising temperatures during the ongoing climate change has further adverse implications on energy intake, metabolism and welfare. The thyroid hormone (TH)-mediated cellular signaling has a pivotal role in regulation of body temperature, energy intake and metabolic adaptation to heat...
May 12, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28494269/medical-conditions-associated-with-recurrent-miscarriage-is-bmi-the-tip-of-the-iceberg
#20
Mushi J Matjila, Anne Hoffman, Zephne M van der Spuy
BACKGROUND: In contrast to sporadic miscarriage, recurrent miscarriage (RM) is a rare entity which affects 1% of couples attempting conception. It is distressing for couples and healthcare professionals as the aetiology is unclear with limited treatment options. Apart from anti-phospholipid syndrome (APS), the strength of associations between RM and commonly investigated endocrine, autoimmune, thrombophilic and uterine structural abnormalities remains uncertain and variable. OBJECTIVES: To assess the prevalence of commonly investigated medical conditions associated with RM...
July 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
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