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Thyroid hormones

Bette K Kleinschmidt-DeMasters
PURPOSE OF REVIEW: Most pituitary region masses are pituitary adenomas; however, when other sellar region masses are encountered by clinicians or pathologists, the differential diagnosis can be broad. This review will focus on updates for pituitary adenomas, as well as briefly discuss some of these other entities: Rathke cleft cyst, hypophysitis, craniopharyngioma, pituicytoma, and spindle cell oncocytoma. RECENT FINDINGS: The use of new immunohistochemical (IHC) tools for assessing transcription factors, pituitary transcription factor-1, steroidogenic factor-1, and the not-yet-widely available Tpit IHC have provided insights into origin particularly of clinically silent and even hormone-negative pituitary adenomas...
October 18, 2016: Current Opinion in Endocrinology, Diabetes, and Obesity
Asami Fujii, Naoya Inoue, Mikio Watanabe, Chisa Kawakami, Yoh Hidaka, Yoshihide Hayashizaki, Yoshinori Iwatani
BACKGROUND: Graves' disease (GD) and Hashimoto's disease (HD) are autoimmune thyroid diseases distinguished by the presence or absence of an anti-thyroid stimulating hormone receptor (TSHR) antibody (TRAb). TSHR gene polymorphisms determine the amount of TSHR expressed, which may in turn influence TRAb production. The FANTOM5 project identified six GD-associated SNPs within the enhancer regions of TSHR and unknown genes. In this study, we examined the association of 11 TSHR and unknown gene polymorphisms, 5 of which are located in TSHR enhancer regions, with the development and prognosis of GD and HD...
October 20, 2016: Thyroid: Official Journal of the American Thyroid Association
So-Hyun Moon, Bum-Joon Lee, Seong-Jin Kim, Hwan-Cheol Kim
BACKGROUND: Night shift work has well-known adverse effects on health. However, few studies have investigated the relationship between thyroid diseases and night shift work. This study aimed to examine night shift workers and their changes in thyroid stimulating hormones (TSH) levels over time. METHODS: Medical check-up data (2011-2015) were obtained from 967 female workers at a university hospital in Incheon, Korea. Data regarding TSH levels were extracted from the records, and 2015 was used as a reference point to determine night shift work status...
2016: Annals of Occupational and Environmental Medicine
Ljubica Fustar Preradovic, Davorin Danic, Radan Dzodic
Parathyroid cysts (PCs) account for less than 1% of all parathyroid lesions and are most commonly located along thyroid lobes, rarely at ectopic sites. PCs are important because they can pose a differential diagnostic challenge against other cystic formations of the neck. PCs can be functional (elevated serum parathyroid hormone level) and nonfunctional. Four cases of nonfunctional PCs are presented. All four female patients underwent physical examination and ultrasonography of the neck with ultrasound-guided fine-needle aspiration biopsy (UG-FNA)...
October 19, 2016: Endocrine Journal
Xu Bojin, Yang Hui, Wang Zhixiao, Yang Tao, Guo Hongwei, Cheng Pei, He Wei, Sun Min, Chen Huanhuan, Duan Yu
This study investigated whether high-normal thyrotropin (TSH) levels are associated with metabolic syndrome in euthyroid Chinese people≥40 years old. Clinical and metabolic factors were assessed in 2,356 subjects (40-77 years old) with TSH levels in the normal range (0.35-5.00 mU/L). Using 2.50 mU/L as the cut-off point of TSH level within the normal range, we divided subjects into the high-TSH (2.50-5.00 mU/L; n=1,064) and low-TSH (0.35-2.50 mU/L; n=11,292) group. The results showed that the mean levels of body mass index (BMI), total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), and fasting plasma glucose (FPG) were higher in the high-TSH group and TSH levels were significantly positively correlated with BMI, LDL-C, TC, and FPG...
June 17, 2016: Journal of Biomedical Research
Eunice López-Muñoz, Jorge Antonio Ibarra-Avalos, Rosario Guadalupe Chan-Verdugo, Leovigildo Mateos-Sánchez, Olivia Sánchez-Rodríguez
In order to determine the prevalence of overt and subclinical hypothyroidism, and isolated hypothyroxinemia during pregnancy, thyroid hormone reference values established by UMAE HGO4, IMSS in Mexico City and those suggested by the American Thyroid Association (ATA) were used. All pregnant patients, whose thyroid function was measured and whose pregnancy was monitored and resolved in UMAE HGO4, IMSS from 1 January to 31 December 2013, were included. Significant differences (p = .00419) were observed in the frequency of subclinical hypothyroidism, being higher when using ATA criteria (18...
October 20, 2016: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Karla Zanolla Dias de Souza, Fabiene Bernardes Castro Vale, Selmo Geber
OBJECTIVE: The objective of this study was to evaluate the efficacy of Tribulus terrestris for the treatment of hypoactive sexual desire disorder in postmenopausal women and evaluate its effect on the serum levels of testosterone. METHODS: We performed a prospective randomized, double-blinded, placebo-controlled study, during 18 months. A total of 45 healthy sexually active postmenopausal women reporting diminished libido were selected to participate in the study and were randomly assigned to receive 750 mg/d of T terrestris or placebo for 120 days...
October 10, 2016: Menopause: the Journal of the North American Menopause Society
Anelia V Bivolarska, Ana I Maneva, Penka D Gatseva, Mariana N Katsarova
AIM: To find correlations between high thiocyanate and nitrate levels and low selenium levels and the indicators of the iodine and iron status of postpartum women. MATERIALS AND METHODS: The study included 41 mothers aged 26.4±5.9 yrs from Asenovgrad and nearby villages. Urinary iodine was determined by the Sandell-Kolthoff reaction and thiocyanate - by the interaction of these ions with acidic solution of KMnO4; for serum nitrates we used the colorimetric method; serum selenium was assessed by electro-thermal atomic-absorption spectrophotometry; thyroxin (FT4), the thyroid stimulating hormone (TSH), serum ferritin (SF), and serum transferrin receptor (sTfR) were determined using ELISA; Hb levels were determined by hematology analyzer...
September 1, 2016: Folia Medica
Xiaojing Wang, Fan Ping, Cuijuan Qi, Xinhua Xiao
BACKGROUND: Autoimmune polyglandular syndrome type 2 (APS-2), also known as Schmidt's syndrome, is an uncommon disorder characterized by the coexistence of Addison's disease with thyroid autoimmune disease and/or type 1 diabetes mellitus. Addison's disease as the obligatory component is potentially life-threatening. Unfortunately, the delayed diagnosis of Addison's disease is common owing to its rarity and the nonspecific clinical manifestation. METHODS: Here we reported a case of 38-year-old female patient who presented with 2 years' history of Hashimoto's thyroiditis and received levothyroxine replacement...
October 2016: Medicine (Baltimore)
Gyanendu Kumar, Amritesh Kumar, Ram Pratap Bundela, Rupesh Pokharna, Prachis Ashdhir, Sandeep Nijhawan
Primary hypothyroidism is a common clinical condition in which serous effusions are rare. Isolated cases have been reported in literature about presence of ascites, pleural effusion, pericardial effusion or combination of any two. But combination of all three is extremely rare. We hereby report a case of multiple body cavity effusions (ascites, pleural and pericardial effusions) and tissue edema (pedal and facial) in a hypothyroid male. He responded well to thyroid hormone replacement therapy.
July 2016: Journal of the Association of Physicians of India
Chutintorn Sriphrapradang, Panudda Srichomkwun, Samuel Refetoff, Sunee Mamanasiri
We report a patient with resistance to thyroid hormone beta caused by a novel <i>THRB</i> gene mutation and coexisting pituitary microadenoma. A 41-year-old Thai woman presented with elevated serum thyroid hormone levels and non-suppressed TSH. MRI showed a 4x2-mm pituitary adenoma. Five of her relatives had similar thyroid tests abnormalities, but a sister had Graves' disease. TPO and TG antibodies were positive in all affected family members except for a 4.5 year-old. Lack of thyrotoxic symptoms and TSH suppression by T3, indicated incidentaloma rather than a TSH-secreting pituitary adenoma...
October 19, 2016: Thyroid: Official Journal of the American Thyroid Association
Yuan Qu, Rui Huang, Lin Li
OBJECTIVES: To compare the ablation results, therapeutic responses and adverse reactions between a low dose (1.1 GBq) or high dose (3.7 GBq) of (131)I in low-/intermediate-risk differentiated thyroid cancer (DTC) patients. The factors influencing the ablation result and therapeutic response were also analyzed. METHODS: The researchers used a random number table to randomly assign the enrolled patients to the low-dose group or high-dose group at a 1:1 ratio, and assessment of ablation result, therapeutic response, and adverse reactions evaluated 6 ± 3 months after therapy...
October 18, 2016: Annals of Nuclear Medicine
Taketo Otsuka, Naoya Tajima, Keisuke Nagasaki, Minoru Okazaki
No abstract text is available yet for this article.
2016: Global Pediatric Health
Mohammad-Reza Jalali-Nadoushan, Reza Amirtouri, Ali Davati, Samaneh Askari, Sepideh Siadati
BACKGROUND: Papillary thyroid carcinoma (PTC), occurs mostly in women and sex hormones may play a role in the pathogenesis and clinical course. The objective of this study was to determine the status and prevalence of estrogen and progesterone receptors in PTC with regard to age, gender, tumor size and lymph node involvement. METHODS: Immunohistochemical stains were performed on 92 tissue blocks of PTC for estrogen receptor (ER) and progesterone receptor (PR) expression in tumor cells...
2016: Caspian Journal of Internal Medicine
K R Anila, Nileena Nayak, K Jayasree
INTRODUCTION: Chronic lymphocytic thyroiditis [Hashimoto thyroiditis (HT)] is a common thyroid lesion diagnosed on fine-needle aspiration cytology (FNAC). Apart from FNAC, various other parameters, such as clinical features, ultrasonographic findings, antithyroid antibody levels, hormone profiles, and radionuclide thyroid scan, are also taken into consideration in making a diagnosis of HT. AIMS: To grade lymphocytic thyroiditis based on the cytomorphology and to correlate the cytological grades with the levels of antithyroid peroxidase antibody (ATPO), antithyroglobulin antibody (ATG), and thyroid stimulating hormone (TSH)...
July 2016: Journal of Cytology
Surjit Singh, Pramod Kumar Sharma
Here, we present a case of chronic myeloid leukemia for which imatinib therapy was initated. Triiodothyronine (T3), thyroxine (T4), and thyroid-stimulating hormone was normal, and thyroid microsomal autoantibodies (TMA) were positive and patient was diagnosed as thyroiditis treated with corticosteroids for 1½ months which lead to resolution.
July 2016: Indian Journal of Pharmacology
Stephanie Rutledge, Michele Harrison, Martin O'Connell, Tadhg O'Dwyer, Maria M Byrne
BACKGROUND: We report the case of a giant intrathyroidal parathyroid adenoma weighing 59 g in a young woman presenting acutely with severe hypercalcemia requiring correction and adequate preoperative management prior to surgery. Parathyroid adenomas account for 85 % of cases of primary hyperparathyroidism. Those weighing more than 3.5g are classified as giant parathyroid adenomas. There are only 25 cases of parathyroid adenomas weighing over 30g reported in the literature. With the wide availability of biochemical screening tests in Western countries, mildly elevated calcium levels are often discovered incidentally...
October 19, 2016: Journal of Medical Case Reports
Maria Papaleontiou, Anne R Cappola
No abstract text is available yet for this article.
October 18, 2016: JAMA: the Journal of the American Medical Association
Tim I M Korevaar, Eric A P Steegers, Victor J Pop, Maarten A Broeren, Layal Chaker, Yolanda B de Rijke, Vincent W V Jaddoe, Marco Medici, Theo J Visser, Henning Tiemeier, Robin P Peeters
CONTEXT: Thyroperoxidase antibody (TPOAb) positivity is the main risk factor for thyroid dysfunction during pregnancy and is consistently associated with premature delivery. However, the underlying mechanism is currently unknown. We hypothesized that TPOAb positivity may interfere with gestational thyroid stimulation induced by the pregnancy hormone human chorionic gonadotropin (hCG). DESIGN, SETTING AND PARTICIPANTS: TSH, FT4, TPOAbs and/or hCG concentrations were measured in early and late pregnancy of 7587 pregnant women from two Dutch population-based prospective cohorts (N=5924 Generation R; N=1663 HAPPY)...
October 18, 2016: Journal of Clinical Endocrinology and Metabolism
Mustafa Altay, İhsan Ateş, Fatma Kaplan Efe, İbrahim Karadağ
No abstract text is available yet for this article.
September 19, 2016: American Journal of Therapeutics
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