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Vishnu Garla, Karthik Kovvuru, Shradha Ahuja, Venkatataman Palabindala, Bharat Malhotra, Sohail Abdul Salim
Aim: To present a case of Graves' disease complicated by methimazole induced agranulocytosis treated with therapeutic plasma exchange (TPE) and review of the literature. Case Presentation: A 21-year-old patient with a history of Graves' disease presented to the endocrine clinic. His history was significant for heat intolerance, weight loss, and tremors. Upon examination he had tachycardia, smooth goiter, thyroid bruit, and hyperactive reflexes. He was started on methimazole and metoprolol and thyroidectomy was to be done once his thyroid function tests normalized...
2018: Case Reports in Endocrinology
Vishnu Vardhan Garla, Sohail Abdul Salim, Licy L Yanes-Cardozo
A 27-year-old male patient who presented to the emergency room with complaints of sweating, palpitations, heat intolerance, insomnia and weight loss for the last 3 months. His medical history was significant for hypertension. On examination, he was tachycardic, hypertensive, had tremors of the upper extremities and a smooth goitre with a thyroid bruit. Laboratory assessment revealed a suppressed thyroid-stimulating hormone, high free thyroxine and positive thyroid receptor antibodies. Complete blood count showed pancytopenia...
March 9, 2018: BMJ Case Reports
Jie-Eun Lee, Dong Hwa Lee, Tae Jung Oh, Kyoung Min Kim, Sung Hee Choi, Soo Lim, Young Joo Park, Do Joon Park, Hak Chul Jang, Jae Hoon Moon
BACKGROUND: Thyrotoxicosis is a common disease caused by an excess of thyroid hormones. The prevalence of thyrotoxicosis about 2% and 70-90% of thyrotoxicosis cases are caused by Graves' disease, an autoimmune disease, which has a high recurrence rate when treated with antithyroid drugs such as methimazole or propylthiouracil. The clinical symptoms and signs of thyrotoxicosis include palpitation, weight loss, restlessness, and difficulty sleeping. Although these clinical changes in thyrotoxicosis can be detected by currently available wearable activity trackers, there have been few trials of the clinical application of wearable devices in patients with thyrotoxicosis...
February 21, 2018: JMIR Research Protocols
Rohan K Henry, Monika Chaudhari
BACKGROUND: Amiodarone-induced thyrotoxicosis (AIT) type 2, characterized as a destructive thyroiditis, is well described in the medical literature; however, iodine-induced thyrotoxicosis (IIT) is not, though the latter has similar features and can be managed similarly. CASE PRESENTATION: We present a 17-year-old female who presented with a history of an intermittent goiter with thyroid function tests (TFTs): thyroid-stimulating hormone (TSH)<0.015 (0.4-4 μU/mL), free thyroxine (T4)≥6 (0...
February 21, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
Ricardo N Alves, Kristina S Sundell, Liliana Anjos, Henrik Sundh, Torstein Harboe, Birgitta Norberg, Deborah M Power
To establish if the developmental changes in the primary barrier and osmoregulatory capacity of Atlantic halibut skin are modified during metamorphosis, histological, histochemical, gene expression and electrophysiological measurements were made. The morphology of the ocular and abocular skin started to diverge during the metamorphic climax and ocular skin appeared thicker and more stratified. Neutral mucins were the main glycoproteins produced by the goblet cells in skin during metamorphosis. Moreover, the number of goblet cells producing neutral mucins increased during metamorphosis and asymmetry in their abundance was observed between ocular and abocular skin...
February 20, 2018: Cell and Tissue Research
Giovanni Gambelunghe, Elisa Stefanetti, Renato Colella, Massimo Monacelli, Nicola Avenia, Pierpaolo De Feo
PURPOSE: To confirm the effectiveness of laser ablation on toxic nodules in a large population with three years of follow-up. MATERIAL AND METHODS: Between 2009 and 2014, we treated 82 patients with hyperthyroidism related to the presence of a toxic nodular goiter. Patients were pre-treated pharmacologically with methimazole prior to single session of laser ablation (LA) and then followed up every 3 months with FT4 and TSH blood tests as well as ultrasound examination of the nodules treated...
February 6, 2018: International Journal of Hyperthermia
Azizollah Nezhadali, Leili Mehri, Raham Shadmehri
Preparation of a molecularly imprinted polymer (MIP) film and its recognition property for methimazole (MMZ) was investigated. The polypyrrole (PPy) film was prepared by the cyclic voltammetric deposition of pyrrole in the presence of a supporting electrolyte (NaClO4·H2O) with and without MMZ through on a pencil graphite electrode (PGE). A computational study based on density functional theory was developed to evaluate the template-monomer geometry and interaction energy in the prepolymerization mixture. The performance of MIP sensor and non-imprinted polymer (NIP) film was evaluated by differential pulse voltammetry (DPV)...
April 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
Wen-Hong Tian, Ying Wang, Rui Yang, Hai-Bing Hu
PURPOSE: This study is aimed to explore the combined use of goiter dispersion formula and antithyroid drugs in the treatment of patients with neurologic manifestations of Graves' disease by examining its modulating effects on patients' cytokines. METHODS: A total of 80 patients with Graves' disease were randomly divided into treatment and control groups. Patients of the treatment group received goiter dispersion formula and antithyroid drugs (methimazole or propylthiouracil), whereas those of the control group received antithyroid drug alone...
February 6, 2018: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
Amin Firouzi, Fatemeh Fadaei Fathabadi, Mohsen Norozian, Abdollah Amini, Mohammad-Amin Abdollahifar, Mohammad Noruzian
Introduction: Hypothyroidism is caused by inadequate production and storage of thyroid hormones. Hypothyroidism is associated with delayed wound healing. Laser therapy may stimulate wound regeneration. The aim of this study was to determine the combined effects of levothyroxine and low level laser therapy during the wound healing process on skin of hypothyroidism male rat model. Methods: Thirty male Wistar rats were randomly divided into 5 groups: control group, hypothyroidism group, hypothyroidism group treated by laser, hypothyroidism group treated by levothyroxine, and hypothyroidism group treated by laser and levothyroxine...
2018: Journal of Lasers in Medical Sciences
Xiang Xia Zeng, Yun Liang Tang, Kai Xiang Hu, Jiao Wang, Ling Yan Zhu, Jian Ying Liu, Jixiong Xu
RATIONALE: Insulin autoimmune syndrome (IAS) is an uncommon disorder characterized by hyperinsulinemic hypoglycemia related to insulin-binding autoantibodies. To the best of our knowledge, we report the first case of a pregnant female with IAS. PATIENT CONCERNS: The 26-year-old patient with Graves disease and 10 weeks pregnant developed IAS after approximately 6 months treatment with methimazole. The patient exhibited recurrent spontaneous hypoglycemia. DIAGNOSES: On evaluation, laboratory findings detected both high fasting insulin (>1000 mIU/L) and insulin autoantibodies...
December 2017: Medicine (Baltimore)
Gi Hyeon Seo, Tae Hyuk Kim, Jae Hoon Chung
Background: Untreated or insufficiently treated Graves disease in pregnancy may pose risks to both mother and fetus. Antithyroid drugs (ATDs) are the treatment mainstay, but the potential teratogenic effect of these drugs has prompted clinicians to question the safe management of this vulnerable population. Objective: To examine the association between maternal prescriptions for ATDs and congenital malformations in live births. Design: Nationwide cohort study...
January 23, 2018: Annals of Internal Medicine
Vandreza Cardoso Bortolotto, Franciane Cabral Pinheiro, Stífani Machado Araujo, Márcia Rósula Poetini, Bianca Santos Bertolazi, Mariane Trindade de Paula, Luana Barreto Meichtry, Francielli Polet de Almeida, Shanda de Freitas Couto, Cristiano Ricardo Jesse, Marina Prigol
Hypothyroidism is often associated with psychiatric disorders such as depression. In this study, we evaluated the effect of chrysin on depressive-like behavior and monoamine levels in hypothyroid female mice. Hypothyroidism was induced by continuous exposure to 0.1% methimazole (MTZ) in drinking water for 31 days. Exposure to MTZ was associated with low plasma levels of thyroid hormones T3 and T4 compared with the control group. Subsequently, euthyroid and MTZ-induced hypothyroid mice were intragastrically administered vehicle or chrysin (20mg/kg) once a day for 28 consecutive days...
January 17, 2018: European Journal of Pharmacology
Wei Zhang, Zhuo-Qun Huang, Wei-Long Lin, Shi-Hong Yang
No abstract text is available yet for this article.
January 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
Fernando Gomez-Peralta, Pablo Velasco-Martínez, Cristina Abreu, María Cepeda, Marta Fernández-Puente
Methimazole (MMI) and propylthiouracil (PTU) are widely used antithyroid drugs (ATD) that have been approved for the treatment of hyperthyroidism. Hepatotoxicity may be induced by these drugs, though they exert dissimilar incidence rates of hepatotoxicity and, possibly, with different underlying pathogenic mechanisms. We report the case of a 55-year-old woman with no relevant medical history diagnosed with hyperthyroidism due to Graves' disease, who developed two episodes of acute hepatitis concurrent with the consecutive administration of two different ATDs, first MMI and then PTU...
2018: Endocrinology, Diabetes & Metabolism Case Reports
Balamurugan Pandiyan, Stephen J Merrill, Flavia Di Bari, Alessandro Antonelli, Salvatore Benvenga
BACKGROUND: Graves' is disease an autoimmune disorder of the thyroid gland caused by circulating anti-thyroid receptor antibodies (TRAb) in the serum. TRAb mimics the action of thyroid stimulating hormone (TSH) and stimulates the thyroid hormone receptor (TSHR), which results in hyperthyroidism (overactive thyroid gland) and goiter. Methimazole (MMI) is used for hyperthyroidism treatment for patients with Graves' disease. METHODS: We have developed a model using a system of ordinary differential equations for hyperthyroidism treatment with MMI...
January 9, 2018: Theoretical Biology & Medical Modelling
Fereidoun Azizi, Atieh Amouzegar
BACKGROUND: Diffuse toxic goiter accounts for about 15% of all childhood thyroid diseases. There is great controversy over the management of Graves' disease in children and adolescents. This article reports our experience in 304 children and juvenile patients with Graves' disease. METHODS: Between 1981 and 2015, 304 patients aged 5-19 years with diffuse toxic goiter were studied, of whom 296 patients were treated with antithyroid drugs (ATD) for 18 months. Patients with persistent or relapsed hyperthyroidism who refused ablative therapy with surgery or radioiodine were managed with continuous methimazole (MMI) treatment...
January 8, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
Fernando A C Seara, Leonardo Maciel, Raiana A Q Barbosa, Nayana C Rodrigues, Anderson L B Silveira, Michelle P Marassi, Adriana B Carvalho, José Hamilton M Nascimento, Emerson L Olivares
AIM: Thyroid dysfunctions can increase the risk of myocardial ischemia and infarction. However, the repercussions on cardiac ischemia/reperfusion (IR) injury remain unclear so far. We report here the effects of hypothyroidism and thyrotoxicosis in the susceptibility to IR injury in isolated rat hearts compared to euthyroid condition and the potential role of antioxidant enzymes. METHODS: Hypothyroidism and thyrotoxicosis were induced by administration of methimazole (MMZ, 300 mg/L) and thyroxine (T4, 12 mg/L), respectively in drinking water for 35 days...
2018: PloS One
H Rauchová, M Vokurková, S Pavelka, I Vaněčková, N Tribulová, T Soukup
Red palm oil (RPO) is a rich natural source of antioxidant vitamins, namely carotenes, tocopherols and tocotrienols. However, it contains approximately 50 % saturated fatty acids the regular consumption of which could negatively modify lipid profile. The aim of our study was to test whether 7 weeks of RPO supplementation (1 g/kg body weight/day) would affect blood glucose and lipid metabolism in adult male Wistar rats with altered thyroid status. We induced hypothyroidism and hyperthyroidism in rats by oral administration of either methimazole or mixture of thyroid hormones...
January 5, 2018: Physiological Research
Hongjian Ji, Feng Yue, Jianxiang Song, Xiaohua Zhou
BACKGROUND: Methimazole is an antithyroid drug that is widely used for the treatment of hyperthyroidism. As an inhibitor of the enzyme thyroperoxidase, methimazole is generally well-tolerated. However, there have been increasing reports of methimazole-induced liver damage, although this effect of methimazole has been limited by the absence of objective diagnosis of the liver condition or the inappropriate use of the Naranjo scale. We present the case of an elderly man with hyperthyroidism, gastritis, and epilepsy who developed liver damage after administration of multiple drugs...
December 2017: Medicine (Baltimore)
Abu Sadat Md Sayem, Nelli Giribabu, Sekaran Muniandy, Naguib Salleh
INTRODUCTION: Thyroid hormone is known to play important role during embryo implantation, however mechanisms underlying its actions in uterus during peri-implantation period has not been fully identified. In this study, we hypothesized that thyroid hormone could affect expression of proteins related to its function, where these could explain mechanisms for its action in uterus during this period. METHODS: Female rats, once rendered hypothyroid via oral administration of methimazole (0...
December 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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