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https://www.readbyqxmd.com/read/28507615/no-association-between-25-oh-vitamin-d-level-and-hypothyroidism-among-females
#1
Imad R Musa, Gasim I Gasim, Sajjad Khan, Ibrahim A Ibrahim, Hamdi Abo-Alazm, Ishag Adam
AIM: The aim was to investigate serum vitamin D (25-OH) level among females with hypothyroidism. MATERIALS AND METHODS: A case-control study (58 in each arm) was conducted in Arar Central Hospital, Kingdom Saudi Arabia. The cases were females with hypothyroidism, and healthy females were controls. TSH, thyroid hormones: Free T3 (FT3) and Free T4 (FT4) and haemoglobin levels were measured in all participants. Serum vitamin D (25-OH) level was measured using the spectrophotometry...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28502654/radiation-induced-hypothyroidism-in-patients-with-breast-cancer-a-retrospective-analysis-of-243-cases
#2
Gul Kanyilmaz, Meryem Aktan, Mehmet Koc, Hikmettin Demir, Lutfi Saltuk Demir
This study aims to estimate the incidence of hypothyroidism (HT) and to evaluate the predictors affecting the development of HT after radiotherapy (RT) for breast cancer, with a focus on radiation dose-volumetric parameters. Between 2009 and 2015, 243 patients undergoing RT for breast cancer were retrospectively analyzed. Free triiodothyronine (FT3), free thyroxin (FT4), and thyrotropin (TSH) were monitored before and after RT. The relation between the doses to thyroid gland (Dmean, Dmax, Dmin), percentage of thyroid volume receiving > 10 Gy, 20 Gy, 30 Gy, 40 Gy, and 50 Gy (V10 to V50), absolute thyroid volume, and HT were analyzed...
May 11, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28500830/association-between-tpo-asn698thr-and-thr725pro-gene-polymorphisms-and-serum-anti-tpo-levels-in-iranian-patients-with-subclinical-hypothyroidism
#3
Amirhosein Khoshi, Alireza Sirghani, Mehran Ghazisaeedi, Ali Zare Mahmudabadi, Amir Azimian
OBJECTIVE: Subclinical hypothyroidism (SCH) is defined as high levels of TSH in the presence of normal levels of serum FT4. Since thyroid peroxidase (TPO) plays a key role in thyroid hormone synthesis, variations in the TPO gene can change the enzyme structure and result in the production of anti-TPO antibodies. The aim of this study was to examine the relationship between the Asn698Thr (A2095C) and Thr725Pro (A2173C) polymorphisms of the TPO gene and anti-TPO levels in patients with SCH...
January 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28472343/maturation-in-serum-thyroid-function-parameters-over-childhood-and-puberty-results-of-a-longitudinal-study
#4
Peter N Taylor, Adrian Sayers, Onyebuchi Okosieme, Gautam Das, Mohd S Draman, Arshiya Tabasum, Hussam Abusahmin, Mohammad Rahman, Kirsty Stevenson, Alix Groom, Kate Northstone, Wolf Woltersdorf, Andrew Taylor, Susan Ring, John H Lazarus, John W Gregory, Aled Rees, Nicholas Timpson, Colin M Dayan
Context: Serum thyroid hormone levels differ between children and adults, but have not been studied longitudinally in the same individuals through childhood. Objective: To assess changes in thyroid stimulating hormone (TSH) and thyroid hormone levels over childhood and their inter-relationships. Design: Cohort study. Setting: The Avon Longitudinal Study of Parents and Children a population-based birth cohort. Participants: 4,442 children who had thyroid function measured at age 7, and 1,263 children who had thyroid function measured at age 15...
May 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28470490/effect-of-laparoscopic-roux-en-y-gastric-bypass-surgery-on-thyroid-hormone-levels-in-chinese-patients-could-it-be-a-risk-for-thyroid-nodules
#5
Hongwei Zhang, Weijie Liu, Xiaodong Han, Haoyong Yu, Pin Zhang, Weiping Jia
OBJECTIVES: The study aimed to evaluate the changes in thyroid function and the risk of thyroid tumors after Roux-en-Y gastric bypass (RYGB) surgery. MATERIALS AND METHODS: This was a retrospective study of 117 patients with type 2 diabetes (T2D) and obesity who underwent laparoscopic RYGB (LRYGB) and were followed up for 36 months. Thyroids were examined with ultrasonography. Binary logistic regression analysis was used for predictors of thyroid tumors, and receiver operating characteristic curve determined cutoff points...
May 3, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28469901/use-of-electronic-clinical-decision-support-and-hard-stops-to-decrease-unnecessary-thyroid-function-testing
#6
Sonia Dalal, Siddharth Bhesania, Steven Silber, Parag Mehta
NewYork-Presbyterian Brooklyn Methodist Hospital embarked on a Zero Unnecessary Study (ZEUS) initiative, whereby all aspects of clinical care were evaluated and strategies were implemented to mitigate waste. An opportunity was found in regards to thyroid function testing. It has been shown that certain TFTs are ordered far more often than clinically indicated. Free T3 (fT3) and Free T4 (fT4) are only indicated when the TSH is abnormal in the inpatient setting, with rare exceptions. Thus, a clinical algorithm for Clinical Decision Support (CDS) and Hard Stops (HS) were incorporated into the Electronic Medical Record (EMR) to prevent fT3 or fT4 to be ordered without an abnormal TSH, with certain predefined exceptions...
2017: BMJ Quality Improvement Reports
https://www.readbyqxmd.com/read/28465796/adding-carbimazole-to-levothyroxine-increases-triiodothyronine-and-improves-outcome-in-patients-with-primary-hypothyroidism-a-preliminary-study-from-egypt
#7
Khaled Nagy Elfayoumy, Usama Bahgat Elgazzar, Mohamed Aboalabbas, Ahmed Salama Al-Adl
BACKGROUND: Many hypothyroid patients are not tolerant and not satisfied with levothyroxine (LT4). Older studies used large doses of both carbimazole and LT4 for Hashimoto's thyroiditis (HT), because Graves' disease (GD) and HT were considered as very closely related syndromes produced by thyroid autoimmunity. OBJECTIVE: The aim of the study was to determine the outcome after adding small doses of carbimazole to reduced doses of LT4 for patients with primary hypothyroidism, who are unable to tolerate LT4...
February 2017: Electronic Physician
https://www.readbyqxmd.com/read/28460140/thyroid-function-variation-in-the-normal-range-energy-expenditure-and-body-composition-in-l-t4-treated-subjects
#8
Mary H Samuels, Irina Kolobova, Megan Antosik, Meike Niederhausen, Jonathan Q Purnell, Kathryn G Schuff
Purpose: It is not clear whether upper limits of the TSH reference range should be lowered. This debate can be better informed by investigation of whether variations in thyroid function within the reference range have clinical effects. Thyroid hormone plays a critical role in determining energy expenditure, body mass, and body composition, and therefore clinically relevant variations in these parameters may occur across the normal range of thyroid function. Methods: This was a cross-sectional study of 140 otherwise healthy hypothyroid subjects receiving chronic replacement therapy with levothyroxine (L-T4) who had TSH levels across the full span of the laboratory reference range (0...
April 28, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28450708/elevated-free-triiodothyronine-may-lead-to-female-sexual-dysfunction-in-chinese-urban-women-a-hospital-based-survey
#9
Han Luo, Hongliu Yang, Wanjun Zhao, Qianqian Han, Li Zeng, Huairong Tang, Jingqiang Zhu
Research on female sexual dysfunction (FSD) is limited, especially in China, due to conservative culture and beliefs. There has been a dearth of FSD screening research in China since the optimal cutoff value of the Chinese version of the Female Sexual Function Index (CVFSFI) was determined in 2014. At the same time, the relationship between thyroid hormones and FSD has seldom been explored in Chinese women. Therefore, hospital-based research was conducted to elucidate FSD frequency and risk factors. Women who underwent a check-up at the Health Promotion Center were approached to participate and, if consented, were enrolled in the study...
April 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28448759/ft3-is-higher-in-males-than-in-females-and-decreases-over-the-lifespan
#10
David Strich, Gilad Karavani, Shalom Edri, Cherut Chay, David Gillis
OBJECTIVE: Normal changes in Free triiodothyronine (FT3), Free thyroxine (FT4) and thyroid stimulating hormone (TSH) levels over the lifespan and differences between genders are not well documented, mainly because even the largest-scale studies available include relatively small cohorts. The aim of this study was to define age-related trends including gender differences based on reliable data. METHODS: A large database including serum thyroid tests drawn in community clinics was studied...
April 27, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28447527/serum-thyroid-hormone-levels-among-chinese-pregnant-women
#11
Yunxian Yu, Xiawei Li, Shuying Jiang, Wen Jiang, Jinhua Wu, Zhaopin Wang, Shuojia Wang, Minchao Li, Haigeng Xu, Yun Lv, Jinxing Jiang, Yongfeng Ding, Boer Zhang
AIM: The aim of this study is to examine gestational serum thyroid hormone levels and influencing factors among Chinese pregnant women with high dietary iodine intake. METHODS: The study was conducted from 2011 and 2013 in Zhoushan Women & Children's Hospital, Zhejiang, China. A total of 1991 pregnant women were enrolled and their serum levels of free thyroid hormones (FT4, FT3, and TSH) were detected by chemiluminescence method. RESULTS: Gestational serum FT4 and FT3 decreased with gestational week while TSH increased...
April 27, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28445281/relationship-between-the-abnormal-diastolic-vortex-structure-and-impaired-left-ventricle-filling-in-patients-with-hyperthyroidism
#12
Bin-Yu Zhou, Ming-Xing Xie, Jing Wang, Xin-Fang Wang, Qing Lv, Man-Wei Liu, Shuang-Shuang Kong, Ping-Yu Zhang, Jin-Feng Liu
Intraventricular hydrodynamics plays an important role in evaluating cardiac function. Relationship between diastolic vortex and left ventricular (LV) filling is still rarely elucidated. The aim of this study was to evaluate the evolution of vortex during diastole in hyperthyroidism (HT) and explore the alteration of hydromechanics characteristics with sensitive indexes.Forty-three patients diagnosed with HT were classified into 2 groups according to whether myocardial damage existed: simple hyperthyroid group (HT1, n = 21) and thyrotoxic cardiomyopathy (HT2, n = 22)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28417080/applying-a-systems-approach-to-thyroid-physiology-looking-at-the-whole-with-a-mitochondrial-perspective-instead-of-judging-single-tsh-values-or-why-we-should-know-more-about-mitochondria-to-understand-metabolism
#13
REVIEW
Roy Moncayo, Helga Moncayo
Classical thinking in endocrine physiology squeezes our diagnostic handling into a simple negative feedback mechanism with a controller and a controlled variable. In the case of the thyroid this is reduced to TSH and fT3 and fT4, respectively. The setting of this tight notion has no free space for any additions. In this paper we want to challenge this model of limited application by proposing a construct based on a systems approach departing from two basic considerations. In first place since the majority of cases of thyroid disease develop and appear during life it has to be considered as an acquired condition...
June 2017: BBA Clinical
https://www.readbyqxmd.com/read/28407664/fenugreek-a-potent-hypoglycaemic-herb-can-cause-central-hypothyroidism-via-leptin-a-threat-to-diabetes-phytotherapy
#14
Jayjeet Majumdar, Pratip Chakraborty, Analava Mitra, Nirmal Kumar Sarkar, Supriti Sarkar
Fenugreek (Trigonella foenum graecum), a medicinal herb with potent antihyperglycaemic and hypoglycaemic effects, is used to treat diabetes. This study is aimed to explore the interaction of fenugreek seed extract (FSE) and HPT (hypothalamic-pituitary-thyroid) axis in context of leptin secretion which have important role in normal and type-1 diabetic subjects. FSE (confirmed to contain trigonelline, diosgenin, 4 hydroxyisoleucine) was gavaged (0.25 gm/kg body weight/day) to normal and alloxan-induced type-1 diabetic rats for 4 weeks...
April 13, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28398655/seasonal-variations-in-tsh-serum-levels-in-athyreotic-patients-under-l-thyroxine-replacement-monotherapy
#15
Damiano Gullo, Adele Latina, Francesco Frasca, Sebastiano Squatrito, Antonino Belfiore, Riccardo Vigneri
BACKGROUND: Whether serum TSH undergoes seasonal fluctuations in euthyroid and hypothyroid residents of temperate climates is controversial. METHODS: Monthly TSH and thyroid hormone levels were cross-sectionally analyzed in a large cohort of euthyroid subjects (n=11,806) and L-thyroxine (L-T4)-treated athyreotic patients (n=3,934). Moreover, in a small group (n=119) of athyreotic patients treated with an unchanged dosage of L-T4 monotherapy, hormones were measured both in the coldest and the hottest seasons of the same year (longitudinal study)...
April 11, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28397723/short-term-preoperative-octreotide-for-thyrotropin-secreting-pituitary-adenoma
#16
Hong-Juan Fang, Yu Fu, Huan-Wen Wu, Yi-Lin Sun, Yang-Fang Li, Ya-Zhuo Zhang, Li-Yong Zhong
BACKGROUND: Thyrotropin-secreting pituitary adenomas (TSHomas) are a rare cause of hyperthyroidism. Somatostatin (SST) analogs work by interacting with somatostatin receptors (SSTRs). This study aimed to evaluate short-term preoperative octreotide (OCT) use in TSHoma patients and to investigate SSTR2 and SSTR5 expression and observe structural changes in tumor tissue. METHODS: We reviewed records and samples from eight TSHoma patients treated between July 2012 and July 2015...
April 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28395379/tsh-%C3%A2-2-5%C3%A2-miu-l-is-associated-with-the-increased-oxidative-damage-to-membrane-lipids-in-women-of-childbearing-age-with-normal-thyroid-tests
#17
Malgorzata Karbownik-Lewinska, Magdalena Marcinkowska, Jan Stepniak, Andrzej Lewinski
According to current recommendations, a TSH value of <2.5 mIU/l should be maintained during preconception and pregnancy. The same recommendation, however, does not relate to all women of childbearing age. The aim of the study was to evaluate relationship between lipid peroxidation (LPO; index of oxidative damage to membrane lipids) and thyroid tests and other parameters, which may be affected by thyroid dysfunction, in euthyroid women of childbearing age. Ninety nine female inpatients with normal thyroid tests (TSH 0...
May 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28395210/low-serum-thyroid-stimulating-hormone-levels-are-associated-with-lipid-profile-in-depressive-patients-with-long-symptom-duration
#18
Rui Peng, Yan Li
OBJECTIVE: The current study was designed to investigate the association between serum thyroid hormones and thyroid-stimulating hormone (TSH) levels with lipid profile in depressive disorder. METHODS: A total of 370 depressive individuals aged 18 years and above were recruited in this cross-section study. All participants underwent a Structured Clinical Interview for DSM-IV (SCID) and recorded the duration of their symptoms. The serum levels of total cholesterol (TCH), triglyceride (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), lipoprotein A (Lp(a)), high-sensitivity C-reactive protein (hsCRP), free thyroxine (FT4), free triiodothyronine (FT3) and TSH levels were determined and the ratios of TCH/HDL-C were assessed...
March 28, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28387076/-pediatric-reference-intervals-retrospective-study-on-thyroid-hormone-levels
#19
A Ladang, L Vranken, F Luyckx, M-C Lebrethon, E Cavalier
Defining reference range is an essential tool for diagnostic. Age and sexe influences on thyroid hormone levels have been already discussed. In this study, we are defining a new pediatric reference range for TSH, FT3 and FT4 for Cobas C6000 analyzer. To do so, we have taken in account 0 to 18 year old outclinic patients. During the first year of life, thyroid hormone levels change dramatically before getting stabilized around 3 years old. We also compared our results to those obtained in a Canadian large-scale prospective study (the CALIPER initiative)...
January 2017: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28386276/cholesterol-synthesis-increased-in-the-mmi-induced-subclinical-hypothyroidism-mice-model
#20
Yongfeng Song, Xiujuan Zhang, Wenbin Chen, Ling Gao
Subclinical hypothyroidism (SCH) is defined as increased serum thyroid-stimulating hormone (TSH) concentrations and normal serum thyroid hormone (TH) levels as well as an increased serum cholesterol level, which is an important cause of secondary hypercholesterolemia and cardiovascular diseases. Some studies have demonstrated a direct effect of TSH on cholesterol metabolism via in vivo and in vitro experiments. However, because no suitable SCH model has been established until now, the changes in cholesterol synthesis that occur in SCH patients remain unknown...
2017: International Journal of Endocrinology
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