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Thyroid mass

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https://www.readbyqxmd.com/read/28635586/gc-1-a-thyromimetic-with-multiple-therapeutic-applications-in-liver-disease
#1
Amedeo Columbano, Grazia Chiellini, Marta Anna Kowalik
Thyroid hormones, namely 3,5,3'-triiodo-L-thyronine (T3) and 3,5,3',5'-tetraiodo-L-thyronine (thyroxine or T4), influence a variety of physiological processes that have important implications in fetal development, metabolism, cell growth and proliferation. While THs elicit several beneficial effects on lipid metabolism and improve myocardial contractility, these therapeutically desirable effects are associated to a thyrotoxic state, that severely limits the possible use of THs as therapeutic agents. Therefore, several efforts have been made to develop T3 analogues that could retain the beneficial actions (triglyceride, cholesterol, obesity and body mass lowering), without the adverse TH-dependent side effects...
June 13, 2017: Gene Expression
https://www.readbyqxmd.com/read/28633262/intratracheal-thyroid-a-different-approach
#2
Marco Rispoli, Rosario Salvi, Giuseppe La Cerra, Carlo Antonio Leone, Ambra Nicolai, Moana Rossella Nespoli, Antonio Corcione, Salvatore Buono
During embryonic development, the abnormal migration of thyroid tissue may cause ectopic localization of the gland in the intralaryngotracheal space. This case report describes the management of a young patient with a recent diagnosis of asthma. During bronchoscopy, a large mass occupying the tracheal lumen was discovered. After tracheotomy to protect the airway, an incisional biopsy was performed and revealed an intratracheal ectopic thyroid. The deep incisions through the tracheotomy to the base of the lesion allowed colloidal content to leak out of the mass until complete resolution of airway obstruction...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28630779/impact-of-obesity-on-serum-levels-of-thyroid-hormones-among-euthyroid-saudi-adults
#3
Hassan M Al-Musa
AIM OF STUDY: To assess serum thyroid hormones levels among Saudi adults and to correlate participants' serum levels with their grades of body mass index (BMI). METHODOLOGY: A total of 278 adult subjects were recruited. Participants were categorized according to their BMI grades into normal weight (BMI < 25 kg/m(2)), overweight (BMI 25-29.9 kg/m(2)), or obese (BMI ≥ 30 kg/m(2)). Serum thyroid hormones levels were assessed at the central laboratory of Aseer Central Hospital, Abha City, by chemiluminescence immunoassay...
2017: Journal of Thyroid Research
https://www.readbyqxmd.com/read/28629253/insights-into-the-management-of-papillary-microcarcinoma-of-the-thyroid
#4
Akira Miyauchi, Yasuhiro Ito, Hitomi Oda
BACKGROUND: Rapid increases in the incidence of thyroid carcinoma with stable mortality rates from thyroid carcinoma have been reported from many countries, and these increases are thought to be due mostly to the increased detection of small papillary thyroid carcinomas (PTCs), including papillary microcarcinomas (PMCs, i.e., PTCs ≤10 mm). Some researchers suggested small PTCs have been overdiagnosed and overtreated. In Japan, the active surveillance of patients with low-risk PMCs was initiated by Kuma Hospital (1993) and Tokyo's Cancer Institute Hospital (1995) based on the extremely higher incidences of both latent thyroid carcinomas in autopsy studies and small PTCs detected in mass screening studies using ultrasound examinations compared to the prevalence of clinical thyroid carcinoma...
June 19, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28625178/endoscopic-electrocautery-and-fibrin-obliteration-of-an-acutely-complicated-pyriform-fossa-sinus-tract-in-a-septuagenarian
#5
R Heyes, A G Aulakh, R K Lingam, T Tatla
BACKGROUND: Pyriform fossa sinus tracts classically present with neck abscess, recurrent infections and suppurative thyroiditis in children; acute presentation in a geriatric patient is rare. METHODS: Case report and Medline literature review. CASE REPORT: A 79-year-old female presented with a left-sided neck mass and severe odynophagia of 3 days' duration. Magnetic resonance imaging revealed a large-volume, loculated fluid collection extending throughout the deep spaces of the neck on the left, within and around the thyroid gland capsule...
June 19, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28625010/treatment-of-tongue-base-masses-in-children-by-transoral-robotic-surgery
#6
Fatma Tulin Kayhan, Ayse Pelin Yigider, Arzu Karaman Koc, Kamil Hakan Kaya, Ibrahim Erdim
The feasibility and effectiveness of transoral robotic surgery (TORS) in children with tongue base masses (TBMs) were evaluated. Eight pediatric patients who were treated with TORS for TBMs between January 2010 and January 2016 at a tertiary hospital included in the study. All pathologies were congenital lesions: four were lingual thyroglossal ductus cysts (LTGDCs), one was a minor salivary gland tumor, one was a vallecular cyst, one was a bronchogenic cyst, and one was an ectopic thyroid tissue. TORS was performed successfully in all cases...
June 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28624628/time-dependent-inhibitory-effects-of-tris-1-3-dichloro-2-propyl-phosphate-on-growth-and-transcription-of-genes-involved-in-the-gh-igf-axis-but-not-the-hpt-axis-in-female-zebrafish
#7
Ya Zhu, Guanyong Su, Dandong Yang, Yongkang Zhang, Liqin Yu, Yufei Li, John P Giesy, Robert J Letcher, Chunsheng Liu
Growth curves were used to determine sensitive exposure windows for evaluation of developmental toxicity of chemicals to zebrafish. Dose- and time-dependent effects on body mass, body length and expression of genes involved in the growth hormone/insulin-like growth factor (GH/IGF) axis and the hypothalamic-pituitary-thyroid (HPT) axis were examined after exposure to environmentally relevant concentrations of tris(1,3-dichloro-2-propyl) phosphate (TDCIPP). Based on growth curves, zebrafish grew most rapidly between 60 and 90 days post fertilization (dpf)...
June 15, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28621046/impact-of-borderline-subclinical-hypothyroidism-on-subsequent-pregnancy-outcome-in-women-with-unexplained-recurrent-pregnancy-loss
#8
Sayaka Uchida, Tetsuo Maruyama, Maki Kagami, Fumie Miki, Hanako Hihara, Satomi Katakura, Yushi Yoshimasa, Hirotaka Masuda, Hiroshi Uchida, Mamoru Tanaka
AIM: Because subclinical hypothyroidism (thyroid-stimulating hormone [TSH] > 4.5 IU/mL) is associated with adverse pregnancy outcome, including early pregnancy loss, TSH is recommended to be titrated to ≤2.5 mIU/L in levothyroxine-treated women before pregnancy. The purpose of this study was to determine whether borderline-subclinical hypothyroidism (borderline-SCH; 2.5 < TSH ≤ 4.5 IU/mL) affects the outcome of subsequent pregnancies in women with unexplained recurrent pregnancy loss (uRPL)...
June 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28620573/clinical-characteristics-and-outcomes-of-patients-with-ischemic-and-non-ischemic-complete-heart-block
#9
Murtaza Sundhu, Mehmet Yildiz, Mubbasher Syed, Bhavan Shah, Sajjad Gul, Omer Afzal, Lon Castle
INTRODUCTION: Third degree or complete heart block (CHB) is a medical emergency and usually requires permanent pacemaker placement. CHB can be caused by cardiac ischemia or non-ischemic conditions such as infiltrative diseases or fibrosis. The purpose of this study is to identify the baseline clinical characteristics associated with ischemic versus non-ischemic causes of complete heart block and compare their outcomes. MATERIALS AND METHODS: An institutional review broad approval was granted by the Cleveland Clinic Health System...
May 12, 2017: Curēus
https://www.readbyqxmd.com/read/28618407/association-between-thyroid-function-and-body-mass-index-a-10-year-follow-up
#10
Hengameh Abdi, Elham Kazemian, Safoora Gharibzadeh, Atieh Amouzegar, Ladan Mehran, Maryam Tohidi, Zahra Rashvandi, Fereidoun Azizi
BACKGROUND/AIMS: We aimed to evaluate the association between change in thyroid function tests within the euthyroid range and body mass index (BMI) in persons with normal weight at baseline. METHODS: This study investigated 1,100 normal-weight euthyroid persons in a population-based cohort study, Tehran Thyroid Study. BMI was calculated and serum concentrations of thyrotropin (TSH) and free T4 (FT4) were assayed at baseline and after 10 years of follow-up. We evaluated the relationship between thyroid and obesity based on 2 definitions for outcome: (1) a binary outcome as BMI <25 or ≥25 kg/m2, and (2) a multinomial outcome as normal BMI, overweight, and obese...
June 16, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28615984/papillary-thyroid-microcarcinoma-arising-within-a-mature-ovarian-teratoma-case-report-and-review-of-the-literature
#11
Maria M Pineyro, Jimena Pereda, Pamela Schou, Karina de Los Santos, Soledad de la Peña, Benedicta Caserta, Raul Pisabarro
Mature cystic teratoma is the most common kind of ovarian germ cell tumor. Malignant transformation is uncommon, with thyroid cancer rarely found. Papillary thyroid microcarcinoma has rarely been described as associated with ovarian teratomas. We report a case of a 34-year-old woman who presented with abdominal pain and an ovarian mass. After surgery, the patient was diagnosed with a follicular variant papillary thyroid microcarcinoma that arose within a mature cystic ovarian teratoma. Based on the small size of the primary lesion and patient preferences, no further treatment was performed...
2017: Clinical Medicine Insights. Endocrinology and Diabetes
https://www.readbyqxmd.com/read/28614818/thyroid-stimulating-hormone-degree-of-obesity-and-metabolic-risk-markers-in-a-cohort-of-obese-swedish-children
#12
Veroniqa Lundbäck, Kerstin Ekbom, Emilia Hagman, Ingrid Dahlman, Claude Marcus
BACKGROUND/AIMS: Thyroid-stimulating hormone (TSH) is affected in obesity and might influence metabolic risk. It is unclear what mechanisms cause elevated TSH in obesity. We aimed to investigate TSH status within the normal range and the association of TSH with degree of obesity and metabolic parameters in children with obesity. METHODS: A total of 3,459 children, aged 3.0-17.9 years, were identified in the Swedish Childhood Obesity Treatment Registry, BORIS. Age, gender, TSH, free triiodothyronine (fT3), free thyroxine (fT4), body mass index standard deviation scores (BMI SDS), as well as variables of lipid and glucose metabolism were examined...
June 14, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28609552/thyrotropin-levels-and-coronary-artery-calcification-cross-sectional-results-of-the-brazilian-longitudinal-study-of-adult-health-elsa-brasil
#13
Érique José F Peixoto de Miranda, Márcio Sommer Bittencourt, Henrique Lane Staniak, Alexandre C Pereira, Murilo Foppa, Itamar S Santos, Paulo A Lotufo, Isabela M Bensenor
BACKGROUND: There is little information about the association between thyrotropin (TSH) levels and coronary artery calcification (CAC). OBJECTIVE: Our aim was to analyze the association between TSH quintiles and subclinical atherosclerosis measured by CAC, using baseline data from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). DESIGN: Cross-sectional study. PATIENTS AND MEASUREMENTS: We excluded individuals using medications that affect thyroid function and who self-reported cardiovascular disease...
June 13, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28608158/surface-water-mitigates-the-anti-metamorphic-effects-of-elevated-perchlorate-concentrations-in-new-mexico-spadefoot-toad-larvae-spea-multiplicata
#14
Melissa A Sandoz, Mike Wages, Kim J Wooten, Sheree L Clendening, Lucas R Smith, Brian Mulhearn, Philip N Smith
Perchlorate (ClO4(-)) has potential to negatively impact amphibian populations by inhibiting thyroid hormone production, and thus metamorphosis in developing larvae. However, variability exists in species sensitivity, and there is evidence suggesting that natural surface waters can mitigate the anti-metamorphic potential of perchlorate. New Mexico spadefoot toad tadpoles, Spea multiplicata, were exposed to natural surface waters spiked with nominal concentrations of 0, 1000, 1350, 1710, 3000, 5110, and 8000 μg/L perchlorate ion for up to 42 days...
June 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28605192/absolute-protein-quantification-by-mass-spectrometry-not-as-simple-as-advertised
#15
Christopher M Shuford, James J Walters, Patricia M Holland, Uma Sreenivasan, Nadav Askari, Kevin B Ray, Russell P Grant
Stable-isotope labeled (SIL) tryptic peptides, cleavable SIL peptides, and a full-length SIL protein were compared for internal calibration (i.e., as internal calibrators) and external calibration (i.e., as internal standards) when quantifying three forms of unlabeled, human thyroglobulin (Tg) by bottom-up protein analysis. All SIL materials and human proteins were standardized by amino acid analysis to ensure traceability of measurements and allow confident assignment of accuracy. The three forms of human Tg quantified were 1) the primary reference material BCR®457 - a native protein purified from human thyroids - 2) a commercially available form also purified from human thyroids, and 3) a full-length recombinant form expressed and purified from a human embryonic kidney 293 cell-line...
June 12, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28599465/pulmonary-enteric-adenocarcinoma-with-pancreatic-metastasis-a-case-report
#16
Wen-Wen Sun, Zhi-Hong Xu, Chao-Fu Wang, Fang Wu, Jiu-Mei Cao, Pei-Jing Cui, Wei Huang, Xiao-Long Jin, Biao Li, Ke-Min Chen, Bei-Li Gao, Jia-An Hu
Pulmonary enteric adenocarcinoma is a markedly rare pathological type of lung adenocarcinoma. As the pancreas is a relatively uncommon site for metastasis, the present case is even more unusual. A 62-year-old male was admitted to hospital following the identification of masses in the left chest wall, right abdominal wall and right upper limb, but with no respiratory symptoms. Computed tomography (CT) of the chest revealed a lump in the lung and a mass in the left chest wall, and (18)F-fluorodeoxyglucose ((18)F-FDG) uptake by the lumps was increased...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599168/impurity-profiling-of-liothyronine-sodium-by-means-of-reversed-phase-hplc-high-resolution-mass-spectrometry-on-line-h-d-exchange-and-uv-vis-absorption
#17
M Ruggenthaler, J Grass, W Schuh, C G Huber, R J Reischl
For the first time, a comprehensive investigation of the impurity profile of the synthetic thyroid API (active pharmaceutical ingredient) liothyronine sodium (LT3Na) was performed by using reversed phase HPLC and advanced structural elucidation techniques including high resolution tandem mass spectrometry (HRMS/MS) and on-line hydrogen-deuterium (H/D) exchange. Overall, 39 compounds were characterized and 25 of these related substances were previously unknown to literature. The impurity classification system recently developed for the closely related API levothyroxine sodium (LT4Na) could be applied to the newly characterized liothyronine sodium impurities resulting in a wholistic thyroid API impurity classification system...
May 30, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28588784/thyrolipomatosis-a-case-report-with-review-of-the-literature
#18
Mitsuaki Ishida, Ippei Kashu, Tsuyoshi Morisaki, Masao Takenobu, Sueyoshi Moritani, Yoshiko Uemura, Koji Tsuta
Fatty tissue is not usually present within the thyroid gland. Only a few fat-containing thyroid lesions have been reported to date, and thyrolipoma is the most common fat-containing lesion of the thyroid gland. Thyrolipomatosis is a condition characterized by diffuse mature adipose cell infiltration of the normal thyroid gland. In this report, we describe what is, to the best of our knowledge, the 12th documented case of thyrolipomatosis, and review the fat-containing lesions of the thyroid gland. A 68-year-old Japanese woman presented with a neck mass that had first been noticed ~7 years earlier...
June 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28588779/pancreatic-acinar-cell-carcinoma-presenting-with-panniculitis-successfully-treated-with-folfirinox-a-case-report
#19
Tomoyasu Yoshihiro, Kenta Nio, Kenji Tsuchihashi, Hiroshi Ariyama, Kenichi Kohashi, Nobuhiro Tsuruta, Fumiyasu Hanamura, Kyoko Inadomi, Mamoru Ito, Kosuke Sagara, Yuta Okumura, Michitaka Nakano, Shuji Arita, Hitoshi Kusaba, Yoshinao Oda, Koichi Akashi, Eishi Baba
Pancreatic acinar cell carcinoma (PACC) is a rare tumor of the exocrine pancreas, representing only 1% of all pancreatic malignancies. A 50-year-old man presented with edema of the thumb joints bilaterally, followed by an appearance of masses in the bilateral lower extremities and fever (38°C). The masses were diagnosed as panniculitis by skin biopsy, and multiple intraperitoneal masses were incidentally detected on pelvic magnetic resonance imaging performed to investigate the leg abnormalities. The patient was referred to the Kyushu University Hospital for further investigation, and fluorodeoxyglucose-positron emission tomography/computed tomography (CT) revealed high-uptake tumors in the pancreatic tail, in the periphery of the liver, and in the pelvis...
June 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28588771/renal-metastases-as-the-initial-presentation-of-papillary-thyroid-carcinoma-a-case-report-and-literature-review
#20
Yunfei Gao, Weiye Deng, Yanfeng Chen, Yunping Fan, Zhuming Guo
Distant metastasis of thyroid carcinoma is rare, and it occurs particularly rarely in renal regions, which represent ~3% of all thyroid distant metastases, with fewer than 30 single case study reports existing in the literature. The present study (and subsequent literature review) of papillary thyroid carcinoma (PTC) reports the case of a 53-year-old male patient who presented with a left renal mass and who had no previous history of thyroid disease. Following renal and thyroid surgery, postoperative pathology confirmed the case to be a follicular variant of PTC, accompanied by renal metastasis...
June 2017: Molecular and Clinical Oncology
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