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https://www.readbyqxmd.com/read/28732334/does-laser-phototherapy-influence-the-proliferation-of-myoepithelial-cells-in-the-salivary-gland-of-hypothyroid-rats
#1
Virgínia Dias Uzêda-E-Silva, Tania Tavares Rodriguez, Luciana Maria Pedreira Ramalho, Flávia Calo Aquino Xavier, Isabele Cardoso Vieira de Castro, Antônio Luiz Barbosa Pinheiro, Jean Nunes Dos Santos
Thyroid hormones influence both development and growth of organs and tissues and guarantee metabolic demands that interfere with the quality of digestive secretions, including those of the salivary glands. Laser phototherapy - LPT can modulate various biological phenomena and its diverse effects permit the action on different cell types. The aim of this study was to evaluate the influence of laser phototherapy on myoepithelial cells of salivary glands of hypothyroid rats. Forty-two albino Wistar rats were divided into two main groups: euthyroid (EU) and hypothyroid (HYPO)...
July 12, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28720762/quantitative-measurement-of-the-thyroid-uptake-function-of-mouse-by-cerenkov-luminescence-imaging
#2
Chien-Chih Ke, Zi-Ming He, Ya-Ju Hsieh, Chia-Wen Huang, Jia-Je Li, Luen Hwu, Yi-An Chen, Bang-Hung Yang, Chi-Wei Chang, Wen-Sheng Huang, Ren-Shyan Liu
Cerenkov luminescence imaging (CLI) has been an evolutional and alternative approach of nuclear imaging in basic research. This study aimed to measure the (131)I thyroid uptake of mouse using CLI for assessment of thyroid function. Quantification of (131)I thyroid uptake of mice in euthyroid, hypothyroid and hyperthyroid status was performed by CLI and γ-scintigraphy at 24 hours after injection of (131)I. The (131)I thyroid uptake was calculated using the equation: (thyroid counts - background counts)/(counts of injected dose of (131)I) × 100%...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28715040/-taste-dysfunction-dysgeusia-and-radioiodine-therapy-of-thyroid-cancer-be-aware-of-side-effects-by-antidepressants-and-sedatives
#3
Markus Dietlein, Alexander Drzezga
In addition to xerostomia, taste dysfunction (hypo-, dysgeusia) is an independent side effect of radioiodine therapy of thyroid cancer. Hypogeusia results from damage of the small mucous salivary glands in the vicinity of the taste buds. Particularly in those patients, who are treated with drugs such as antidepressants or sedatives, taste dysfunction becomes frequently clinically symptomatic. If feasible, therapy regimens bearing a potential risk for taste dysfunction should be switched. Additional damage to taste function should be minimalized, including cessation of smoking, change of agents for dental hygiene, and change of toothpaste...
July 17, 2017: Nuklearmedizin. Nuclear Medicine
https://www.readbyqxmd.com/read/28683860/latent-hypothyroidism-in-adults
#4
Jeannine Schübel, Joachim Feldkamp, Antje Bergmann, Wolfgang Drossard, Karen Voigt
BACKGROUND: The prevalence of latent/subclinical hypothyroidism is between 3% and 10%, according to epidemiologic studies that have been carried out in the USA, the United Kingdom, and Denmark. As persons with latent hypo - thyroidism are often asymptomatic, the diagnosis is often made incidentally in routine laboratory testing. METHODS: This review is based on a selective search in PubMed for publications on the diagnosis and treatment of latent hypothyroidism...
June 23, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28673339/human-limbal-fibroblast-like-stem-cells-induce-immune-tolerance-in-autoreactive-t-lymphocytes-from-female-patients-with-hashimoto-s-thyroiditis
#5
Antonina Coppola, Laura Tomasello, Maria Pitrone, Salvatore Cillino, Pierina Richiusa, Giuseppe Pizzolanti, Carla Giordano
BACKGROUND: Due to their "natural immune privilege" and immunoregulatory properties human fibroblast-like limbal stem cells (f-LSCs) have acquired great interest as a potential tool for achieving immunotolerance. Hashimoto's thyroiditis (HT) is the most common thyroid autoimmune disease and cause of hypothyroidism. To date, conventional hormone replacement therapy and unspecific immunosuppressive regimens cannot provide a definitive cure for HT subjects. We explored the immunosuppressant potential of human f-LSCs on circulating lymphomonocytes (PBMCs) collected from healthy donors and female HT patients...
July 3, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28623469/association-between-giant-cell-arteritis-and-thyroid-dysfunction-in-a-real-life-population
#6
Yarden Yavne, Shmuel Tiosano, Abdulla Watad, Doron Comaneshter, Yehuda Shoenfeld, Arnon D Cohen, Howard Amital
PURPOSE: Giant cell arteritis is a systemic autoimmune disorder which involves inflammation of medium to large vessels. The association between giant cell arteritis and autoimmune thyroid disorders has been investigated numerous times in the literature with inconsistent results. Our objective was to evaluate whether a genuine association exists between giant cell arteritis and thyroid dysfunction, which is often due to immune-mediated thyroid disease. METHODS: Utilizing the medical database of Clalit Health Services, we compared the proportion of hypo and hyperthyroidisim between patients with giant cell arteritis and age-matched and gender-matched controls in a cross-sectional study...
August 2017: Endocrine
https://www.readbyqxmd.com/read/28521834/incidence-of-total-hip-or-knee-replacement-due-to-osteoarthritis-in-relation-to-thyroid-function-a-prospective-cohort-study-the-nord-tr%C3%A3-ndelag-health-study
#7
Alf Inge Hellevik, Marianne Bakke Johnsen, Arnulf Langhammer, Anne Marie Fenstad, Ove Furnes, Kjersti Storheim, John Anker Zwart, Gunnar Flugsrud, Lars Nordsletten
BACKGROUND: To study whether thyroid function was associated with risk of hip or knee replacement due to primary osteoarthritis. METHODS: In a prospective cohort study, data from the second and third survey of the Nord-Trøndelag Health Study were linked to the Norwegian Arthroplasty Register in order to identify total hip or knee replacement as a result of primary osteoarthritis. RESULTS: Among 37 891 participants without previously known thyroid disease we recorded 978 total hip replacements (THRs) and 538 total knee replacements (TKRs) during a median follow-up time of 15...
May 18, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28472357/thyroid-dysfunction-and-autoimmune-thyroid-diseases-among-atomic-bomb-survivors-exposed-in-childhood
#8
Misa Imaizumi, Waka Ohishi, Eiji Nakashima, Nobuko Sera, Kazuo Neriishi, Michiko Yamada, Yoshimi Tatsukawa, Ikuno Takahashi, Saeko Fujiwara, Keizo Sugino, Takao Ando, Toshiro Usa, Atsushi Kawakami, Masazumi Akahoshi, Ayumi Hida
Context: The risk of thyroid cancer increases and persists for decades among individuals exposed to ionizing radiation in childhood, while long-term effects of childhood exposure to medium to low doses radiation on thyroid dysfunction and autoimmune thyroid diseases have remained unclear. Objective: To evaluate radiation-dose responses for the prevalence of thyroid dysfunction and autoimmune thyroid disease among atomic -bomb survivors exposed in childhood. Design, Setting, and Participants: Hiroshima and Nagasaki atomic-bomb survivors who were younger than 10 years old at exposure underwent thyroid examinations at the Radiation Effects Research Foundation between 2007 and 2011, which was 62-66 years after the bombing...
May 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28451576/thyroid-ultrasonography-in-differentiation-between-graves-disease-and-hashimoto-s-thyroiditis
#9
P Pishdad, G R Pishdad, S Tavanaa, R Pishdad, R Jalli
OBJECTIVE: Graves' disease and Hashimoto's thyroiditis are the most common causes of hyper and hypothyroidism, respectively. Differentiation of these 2 diseases, if the patient is euthyroid, may sometimes be extremely difficult on the basis of clinical and laboratory findings. The purpose of this study was to determine the sensitivity and specificity of gray scale sonography in differentiation of Graves' disease from Hashimoto's thyroiditis. METHODS: This study included 149 patients divided into three groups, patients with Graves' disease (34 patients, mean age = 36...
March 2017: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/28435326/the-association-between-thyroid-disorders-and-incident-gout-population-based-case-control-study
#10
Saskia G Bruderer, Christoph R Meier, Susan S Jick, Michael Bodmer
CONTEXT: Thyroid hormones influence kidney function and thereby might alter serum urate levels, a major risk factor for gouty arthritis. OBJECTIVE: To assess the risk of developing incident gout in association with hypothyroidism or hyperthyroidism. DESIGN: Retrospective population-based case-control analysis. SETTING: UK-based Clinical Practice Research Datalink, a primary care research database. PATIENTS: We identified adult patients with a diagnosis of incident gout between 1990 and 2014...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/28257828/directional-thyroid-hormone-distribution-via-the-blood-stream-to-target-sites
#11
Susanne T Janssen, Onno E Janssen
Thyroid hormones are bound to three major serum transport proteins, thyroxin-binding globulin (TBG), transthyretin (TTR) and human serum albumin (HSA). TBG has the strongest affinity for thyroid hormones, TTR is also found in the cerebrospinal fluid and HSA is the most abundant protein in plasma. Combination defects of either a high affinity TTR or HSA variant do not compensate TBG deficiency, underscoring the dominant role of TBG among the thyroid hormone transport proteins. On the other hand, coexistence of raised affinity TTR and HSA variants causes an augmented hyperthyroxinemia...
February 28, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28242086/ultrasound-image-classification-of-ductal-carcinoma-in-situ-dcis-of-the-breast-analysis-of-705-dcis-lesions
#12
Takanori Watanabe, Takuhiro Yamaguchi, Hiroko Tsunoda, Setsuko Kaoku, Eriko Tohno, Hidemitsu Yasuda, Kanako Ban, Koichi Hirokaga, Kumiko Tanaka, Takeshi Umemoto, Toshitaka Okuno, Yasuhisa Fujimoto, Shuichi Nakatani, Jun Ito, Ei Ueno
The Japan Association of Breast and Thyroid Sonology (JABTS) proposed, in 2003, a conceptual classification system for non-mass abnormalities to be applied in addition to the conventional concept of masses, to facilitate detecting ductal carcinoma in situ (DCIS) lesions. The aim of this study was to confirm the utility of this system and to clarify the distribution of these findings in DCIS lesions. Data on 705 surgically treated DCIS lesions from 16 institutions in Japan were retrospectively reviewed. All 705 DCIS lesions could be classified according to the JABTS classification system...
May 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28217494/effects-of-thyroid-status-on-glycated-hemoglobin
#13
Rana Bhattacharjee, Anubhav Thukral, Partha Pratim Chakraborty, Ajitesh Roy, Soumik Goswami, Sujoy Ghosh, Pradip Mukhopadhyay, Satinath Mukhopadhyay, Subhankar Chowdhury
INTRODUCTION: Glycated hemoglobin (HbA1c) can be altered in different conditions. We hypothesize that HbA1c levels may change due to altered thyroid status, possibly due to changes in red blood cell (RBC) turnover. OBJECTIVES: The objective of this study was to determine the effects of altered thyroid status on HbA1c levels in individuals without diabetes, with overt hyper- and hypo-thyroidism, and if present, whether such changes in HbA1c are reversed after achieving euthyroid state...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28205670/leptin-and-ghrelin-concentration-in-hyperthyroid-cats-before-and-after-radioactive-iodine-therapy-compared-to-euthyroid-control-cats
#14
Sina Marsilio, Barbara Glanemann, Lucile Martin, Balazs Szladovits, Reto Neiger
OBJECTIVE: Leptin and ghrelin, two peptide hormones with antagonistic effects on satiety and energy balance, could be involved in the pathogenesis of weight loss and polyphagia in cats with hyperthyroidism. Leptin generally decreases appetite and increases energy expenditure, while ghrelin exerts the opposite effects. MATERIALS AND METHODS: Leptin and ghrelin were measured in 42 client owned hyperthyroid cats with a body condition score (BCS) ≤ 5/9 before (T0) and 4 weeks after radioactive iodine treatment (RAIT) (T1)...
April 19, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28097455/leptin-npy-melatonin-and-zinc-levels-in-experimental-hypothyroidism-and-hyperthyroidism-the-relation-to-zinc
#15
Abdulkerim Kasım Baltaci, Rasim Mogulkoc
Since zinc mediates the effects of many hormones or is found in the structure of numerous hormone receptors, zinc deficiency leads to various functional impairments in the hormone balance. And also thyroid hormones have important activity on metabolism and feeding. NPY and leptin are affective on food intake and regulation of appetite. The present study is conducted to determine how zinc supplementation and deficiency affect thyroid hormones (free and total T3 and T4), melatonin, leptin, and NPY levels in thyroid dysfunction in rats...
June 2017: Biochemical Genetics
https://www.readbyqxmd.com/read/28079354/effect-of-excess-iodine-intake-on-thyroid-on-human-health
#16
REVIEW
Eftychia G Koukkou, Nikolaos D Roupas, Kostas B Markou
The recommended daily intake of iodide, is 150 μg for adolescents and adults, 250 μg for pregnancy and lactation. Thyroid gland is an effective collector of iodine. The active iodine uptake along the basolateral membrane of thyroid cell is followed by its transport to the apical edge of the cell and then to the follicle lumen. TSH acts through cAMP and stimulates NIS gene expression and protein synthesis. The major proportion of iodine in the thyroid gland is bound to Thyroglobulin. The non-organic intrathyroidal iodine is usually low, but significantly greater compared to plasma...
April 2017: Minerva Medica
https://www.readbyqxmd.com/read/28071990/natural-course-of-euthyroidism-and-clues-for-early-diagnosis-of-thyroid-dysfunction-tehran-thyroid-study
#17
Atieh Amouzegar, Zahra Ghaemmaghami, Maani Beigy, Safoora Gharibzadeh, Ladan Mehran, Maryam Tohidi, Fereidoun Azizi
OBJECTIVE: Considering the limited data available on the natural course of euthyroidism, this study was designed to evaluate the progression in time from euthyroidism to subclinical or overt hypo- or hyperthyroidism. METHODS: This study was conducted within the framework of the Tehran Thyroid Cohort Study, in which 5783 individuals aged 40.4 ± 0.2 years were followed for six years. The overall loss to follow-up rate was 8.3%. After applying exclusion criteria, data of 4204 euthyroid subjects remained for analysis of a six-year natural course analysis...
May 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28059636/effects-of-adequate-iodine-supply-on-the-incidence-of-iodine-induced-thyroid-disorders-in-slovenia
#18
Vid Bajuk, Katja Zaletel, Edvard Pirnat, Sergej Hojker, Simona Gaberšček
BACKGROUND: This study aimed to establish the changes in the incidence and characteristics of iodine-induced hyperthyroidism (II-Hyper) and iodine-induced hypothyroidism (II-Hypo) in the two-year period before and the 10-year period after the increase in mandatory salt iodization from the previous 10 mg/kg of potassium iodide to 25 mg/kg in 1999. Furthermore, the aim was to determine the duration of treatment in II-Hyper patients, since no data regarding severity and treatment of II-Hyper with respect to iodine supply are available...
April 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/27981277/a-dilemma-at-gray-scale-thyroid-ultrasound-microcalcification-or-not-differentiation-with-acoustic-radiation-force-impulse-imaging-virtual-touch-imaging
#19
Duzgun Yildirim, Cesur Samanci, Fethi Emre Ustabasioglu, Deniz Alis, Bulent Colakoglu, Alev Bakır, Onur Tutar, Ahmet Erdem Kilavuz, Ahmet Kaur
AIMS: To evaluate the capacity of virtual touch imaging (VTI) of the acoustic radiation force impulse (ARFI) techniquein the differential diagnosis of micro-echogenicities in thyroid nodules. MATERIAL AND METHODS: The study comprised 28patients. Gray scale and ARFI displacement maps were used during ultrasound examination.In the same session, fine needleaspiration biopsy (FNAB) samples were obtained from the dominant nodule hav-ing micro-echogenicities. Two radiologists blinded to the FNAB results and clinical data of the patients evaluated these images and rated ARFI echogenicities according to the degree of shining points on the displacement maps and classified them as isohypoechogenic, isohyperechogenic, and obvious hyperechogenic...
December 5, 2016: Medical Ultrasonography
https://www.readbyqxmd.com/read/27941950/thyroid-hormone-status-defines-brown-adipose-tissue-activity-and-browning-of-white-adipose-tissues-in-mice
#20
Juliane Weiner, Mathias Kranz, Nora Klöting, Anne Kunath, Karen Steinhoff, Eddy Rijntjes, Josef Köhrle, Vilia Zeisig, Mohammed Hankir, Claudia Gebhardt, Winnie Deuther-Conrad, John T Heiker, Susan Kralisch, Michael Stumvoll, Matthias Blüher, Osama Sabri, Swen Hesse, Peter Brust, Anke Tönjes, Kerstin Krause
The present study aimed to determine the effect of thyroid hormone dysfunction on brown adipose tissue activity and white adipose tissue browning in mice. Twenty randomized female C57BL/6NTac mice per treatment group housed at room temperature were rendered hypothyroid or hyperthyroid. In-vivo small animal (18)F-FDG PET/MRI was performed to determine the effects of hypo- and hyperthyroidism on BAT mass and BAT activity. Ex-vivo(14)C-acetate loading assay and assessment of thermogenic gene and protein expression permitted analysis of oxidative and thermogenic capacities of WAT and BAT of eu-, hyper and hypothyroid mice...
December 12, 2016: Scientific Reports
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