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https://www.readbyqxmd.com/read/28394842/struma-ovarii-with-hyperthyroidism
#1
Lynn P Ang, Anca M Avram, Richard W Lieberman, Nazanene H Esfandiari
We report the case of a 61-year-old woman with persistent thyrotoxicosis for 7 years despite low thyroidal radioiodine uptake and methimazole treatment. Her initial I whole-body scan (WBS) was read as negative. Upon evaluation in our institution, she remained hyperthyroid after discontinuation of methimazole. Repeat WBS with SPECT/CT revealed low 24-hour thyroidal uptake (RAIU = 2%) and intensely focal radioiodine uptake in a large heterogeneous left pelvic mass, consistent with left adnexal struma ovarii. Resection of this mass confirmed benign struma ovarii...
April 7, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28393327/an-observational-study-of-110-elderly-lithium-treated-patients-followed-up-for-6%C3%A2-years-with-particular-reference-to-renal-function
#2
Alberto Bocchetta, Francesca Cabras, Martina Pinna, Antonio Poddighe, Claudia Sardu, Raffaella Ardau, Caterina Chillotti, Maria Del Zompo
BACKGROUND: Recent observational studies have focused on lithium treatment in the elderly, with particular reference to safety in terms of thyroid and renal functions. The purpose of this study was to compare the clinical characteristics of patients starting lithium treatment before (N = 79) or after (N = 31) the age of 65 years. Patients were followed up for 6 years with focus on renal function and prescription of levothyroxine and methimazole. RESULTS: At baseline, median lithium serum concentration was 0...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28381452/management-of-endocrine-disease-arguments-for-the-prolonged-use-of-antithyroid-drugs-in-children-with-graves-disease
#3
Juliane Leger, Jean-Claude Carel
Graves' disease is an autoimmune disorder. It is the major cause of hyperthyroidism but is rare in children. Patients are initially managed with antithyroid drugs (ATD), in the form of methimazole/carbimazole. A major disadvantage of ATD treatment is the high risk of relapse, exceeding 70% of children treated for a duration of two years, and the potential major side effects of the drug reported in exceptional cases. The major advantage of ATD treatment is that normal homeostasis of the hypothalamus-pituitary thyroid axis may be restored, with periods of drug treatment followed by freedom from medical intervention achieved in about 40 to 50% of cases after prolonged ATD treatment for several years in recent studies...
April 5, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28357106/persistent-arthralgia-vomiting-and-hypercalcemia-as-the-initial-manifestations-of-hyperthyroidism-a-case-report
#4
Jingfang Liu, Xulei Tang, Jianguo Cheng, Xiaomei Yang, Yan Wang
A 53-year-old woman presented with persistent edema and pain of the metacarpophalangeal and proximal interphalangeal joints and the wrist, knee and ankle joints, with more recent intermittent nausea and vomiting. Treatment for rheumatoid arthritis and osteoarthritis was ineffective. No clinical manifestations typical of hyperthyroidism were observed. The results of the thyroid function tests were as follows: Thyroid-stimulating hormone, 0.003 µIU/ml; triiodothyronine (T3), 4.44 ng/ml;, thyroxine (T4) >30 µg/dl; free T3, 14...
February 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28341216/effects-of-methimazole-on-drosophila-glucolipid-metabolism-in-vitro-and-in-vivo
#5
Qi Wei, Bo Hu, Yuan Xue, David Kibe Mburu, Xian Tao, Jianya Su
Methimazole (MMI) is an antithyroid agent widely used in the treatment of hyperthyroidism, and metabolized by cytochrome P450 enzymes and flavin-containing monooxygenases in mammals. However, drug overdose and the inadequate detoxification of the metabolite(s) are responsible for hepatocellular damage and organ dysfunction. Depending on the desired properties, Drosophila melanogaster has recently emerged as an ideal model organism for the study of human diseases. Here we investigated the changes in metabolic profiles and mRNA expressions related to glucolipid metabolism in response to treatment with MMI in Drosophila...
March 21, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28339384/evaluation-of-the-most-frequently-prescribed-extemporaneously-compounded-veterinary-medications-at-a-large-independent-community-pharmacy
#6
Adel H Karara, Ryan Hines, Zehra Demir, Bethran Nnorom, Robert Horsey, Geoffrey Twigg
Extemporaneous drug formulation is essential to provide optimal pharmaceutical care to veterinary patients. The need for this is exacerbated by the fact that commercially produced veterinary-specific products, without a human indication, require specialty veterinary manufacturing facilities and a new animal drug application process to gain marketing approval. This study examined the prescription patterns of extemporaneously compounded veterinary preparations in the compounding department at a large independent community pharmacy...
November 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28324105/thyroid-hormone-dependent-epigenetic-regulation-of-melanocortin-4-receptor-levels-in-female-offspring-of-obese-rats
#7
Tzlil Tabachnik, Tatiana Kisliouk, Asaf Marco, Noam Meiri, Aron Weller
Maternal obesity is a risk factor for offspring obesity. The melanocortin 4 receptor (Mc4r) is one of the mediators of food intake and energy balance. The present study examined the epigenetic mechanisms underlying altered Mc4r levels in the hypothalamic paraventricular nucleus in the offspring of high-fat diet (HFD)-induced obese dams and sought to elucidate the role of thyroid hormones in epigenetic regulation and tagging of their nucleosome at the Mc4r promoter. Female Wistar rats were fed an HFD or standard chow from weaning through gestation and lactation...
April 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28320470/methimazole-associated-eosinophilic-pleural-effusion-a-case-report
#8
Pedro Gaspar-da-Costa, Filipa Duarte Silva, Júlia Henriques, Sónia do Vale, Sandra Braz, João Meneses Santos, Rui M M Victorino
BACKGROUND: Adverse reactions associated to anti-thyroid drugs include fever, rash, arthralgia, agranulocytosis and hepatitis that are thought to be hypersensitivity reactions. Five cases of pleural effusion associated to thionamides have also been reported, two with propylthiouracil and three with carbimazole. CASE PRESENTATION: We report here a case of a 75-year-old man admitted because of unilateral pleural effusion. The patient had a recent diagnosis of hyperthyroidism and 6 days after starting methimazole complained of pleuritic chest pain...
March 21, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28282233/dietary-management-of-hyperthyroidism-in-a-dog
#9
Andrea Looney, Joseph Wakshlag
An 8 yr old female spayed golden retriever presented for a routine exam during which ventral cervical soft tissue masses were identified. History included weight loss, increased activity and appetite, gagging, and occasional diarrhea. Exam findings included a body condition score of 4/9 and palpable ventral cervical nodules. A serum thyroxine (T4) value was 8.0 ug/dL (normal = 0.8-3.5ug/dL). Doppler systolic blood pressure readings ranged from 200-210 mmHg (normal systolic blood pressure <150 mmHg). The diagnosis was hyperthyroidism due to active thyroid masses...
March 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28279752/novel-spiroimidazopyridine-derivative-sak3-improves-methimazole-induced-cognitive-deficits-in-mice
#10
Husain Noreen, Yasushi Yabuki, Kohji Fukunaga
Methimazole (MMI) is a first-line therapy used to manage hyperthyroidism and Graves' disease. Despite its therapeutic benefit, chronic MMI administration can lead to hypothyroidism and perturb brain homeostasis in patients, resulting in neuropsychiatric disorders such as depression and cognitive dysfunction. We recently developed the spiroimidazopyridine derivative SAK3 as cognitive enhancer; however, mechanisms underlying its activity remained unclear. Here, we show that SAK3 potentially improves cognitive impairment seen following MMI-induced hypothyroidism...
March 6, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28272341/liver-effects-of-clinical-drugs-differentiated-in-human-liver-slices
#11
Alison E M Vickers, Anatoly V Ulyanov, Robyn L Fisher
Drugs with clinical adverse effects are compared in an ex vivo 3-dimensional multi-cellular human liver slice model. Functional markers of oxidative stress and mitochondrial function, glutathione GSH and ATP levels, were affected by acetaminophen (APAP, 1 mM), diclofenac (DCF, 1 mM) and etomoxir (ETM, 100 μM). Drugs targeting mitochondria more than GSH were dantrolene (DTL, 10 μM) and cyclosporin A (CSA, 10 μM), while GSH was affected more than ATP by methimazole (MMI, 500 μM), terbinafine (TBF, 100 μM), and carbamazepine (CBZ 100 μM)...
March 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28251007/a-pediatric-case-of-cowden-syndrome-with-graves-disease
#12
Cláudia Patraquim, Vera Fernandes, Sofia Martins, Ana Antunes, Olinda Marques, José Luís Carvalho, Jorge Correia-Pinto, Carla Meireles, Ana Margarida Ferreira
Cowden syndrome (CS) is a rare dominantly inherited multisystem disorder, characterized by an extraordinary malignant potential. In 80% of cases, the human tumor suppressor gene phosphatase and tensin homolog (PTEN) is mutated. We present a case of a 17-year-old boy with genetically confirmed CS and Graves' disease (GD). At the age of 15, he presented with intention tremor, palpitations, and marked anxiety. On examination, he had macrocephaly, coarse facies, slight prognathism, facial trichilemmomas, abdominal keratoses, leg hemangioma, and a diffusely enlarged thyroid gland...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28242803/antithyroid-arthritis-syndrome
#13
Anar Modi, Hari Amin, Farah Morgan
Antithyroid arthritis syndrome is a constellation of symptoms of myalgia, arthralgia, arthritis, fever and rash associated with the use of antithyroid medications. We report a case of a patient with severe hyperthyroidism likely secondary to Graves' disease who presented with the abovementioned symptoms after being treated with methimazole (antithyroid medication). Our aim is to increase awareness regarding this uncommon but disabilitating and life-threatening adverse effect of antithyroid medications among clinicians...
February 27, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28203042/relationship-between-dose-of-antithyroid-drugs-and-adverse-events-in-pediatric-patients-with-graves-disease
#14
Kie Yasuda, Yoko Miyoshi, Makiko Tachibana, Noriyuki Namba, Kazunori Miki, Yukiko Nakata, Toru Takano, Keiichi Ozono
Graves' disease (GD) accounts for a large proportion of pediatric hyperthyroidism, and the first-line treatment is antithyroid drug (ATD) therapy. Methimazole (MMI) is effective in most patients but is associated with significant adverse events (AEs). We reviewed the medical records of GD patients (n = 56) with onset age of <15 yr and investigated the relationship between MMI dose and AEs. The study population comprised 11 male and 45 female patients and the median age at diagnosis was 11 yr. All patients were initially treated with ATDs...
January 2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/28192819/mir-346-and-trab-as-predicative-factors-for-relapse-in-graves-disease-within-one-year
#15
Jianhui Li, Yawei Cai, Xiaohua Sun, Danzhen Yao, Jinying Xia
Despite the efficacy and safety, antithyroid drug (ATD) therapy for Graves' disease (GD) is associated with a high risk of relapse, especially within the first year. The inability to predict whether and when relapse may occur is a major problem for ATD therapy. This study was aimed to investigate potential predicative factors for GD patients after ATD withdrawal. Consecutive patients newly diagnosed with GD and treated with ATD [methimazole (MMI)] were enrolled in this study. Univariate and multivariate Cox proportional hazard analyses were used for the analysis of predicative parameters for GD relapse after MMI withdrawal...
March 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28178156/hyperthyroidism-with-dome-and-dart-t-wave-a-case-report-a-care-compliant-article
#16
Ping Lai, Jing-Ling Yuan, Jin-Hua Xue, Yue-Qun Qiu
RATIONALE: Dome-and-dart T waves (or bifid T waves) are a rare phenomenon in the surface electrocardiogram. These wave forms are mainly observed in patients with congenital heart disease such as atrial septal defect and ventricular septal defect. And hyperthyroidism who presented with an electrocardiogram that had dome-and-dart T waves in a precordial lead is never been reported. PATIENT CONCERNS: The patient presented with continuous tachycardia, palpitations, chest tightness, and headache for 4 days, and aggravated for 1 day...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28137907/paralysis-that-easily-reverses-a-case-of-thyrotoxic-periodic-paralysis
#17
Niranjan Tachamo, Saroj Lohani, Salik Nazir, Noelle Juliano
Thyrotoxic periodic paralysis is a potentially life-threatening condition associated with recurrent episodes of muscle weakness and hypokalaemia due to hyperthyroidism. Diagnosis is often delayed or misdiagnosed due to its rarity in the western world and subtle features of hyperthyroidism on initial presentation. Here we present the case of a 25-year-old man who presented to the emergency department (ED) with sudden onset weakness of bilateral upper and lower extremities. His labs revealed hypokalaemia with elevated T4 and suppressed thyroid-stimulating hormone and he was diagnosed with thyrotoxic periodic paralysis...
January 30, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28137210/the-metabolism-of-methazolamide-in-immortalized-human-keratinocytes-hacat-cells
#18
Tetsuo Sasabe, Shinichiro Maeda, Kenichi Kishida, Mariko Yamano, Yoshihiro Miwa, Toshihiro Sugiyama
OBJECTIVE: Drug therapy is occasionally accompanied by an idiosyncratic severe toxicity, which occurs very rarely, but can lead to patient mortality. Methazolamide, an anti-glaucomatous agent, could cause severe skin eruptions called Stevens-Johnson syndrome/toxic epidermal necrolyis (SJS/TEN). Its precise etiology is still uncertain. In this study, the metabolism of methazolamide was investigated in immortalized human keratinocytes to reveal the possible mechanism which causes SJS/TEN...
January 27, 2017: Drug Metabolism Letters
https://www.readbyqxmd.com/read/28121960/hyperthyroidism-associated-hypercalcemic-crisis-a-case-report-and-review-of-the-literature
#19
REVIEW
Ke Chen, Yanhong Xie, Liling Zhao, Zhaohui Mo
RATIONALE: Hyperthyroidism is one of the major clinical causes of hypercalcaemia, however, hyperthyroidism-related hypercalcemic crisis is rare, only 1 case have been reported. The potential mechanisms are still not too clear. It may be related that thyroid hormone stimulate bone turnover, elevate serum calcium, increase urinary and fecal calcium excretion. PATIENT CONCERNS: A 58-year-old female patient was found to have Graves' disease, a marked elevated serum calcium level (adjusted serum calcium: 3...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28090049/thyroid-storm-precipitated-by-diabetic-ketoacidosis-and-influenza-a-a-case-report-and-literature-review
#20
Toshiyuki Ikeoka, Hiroaki Otsuka, Naruhiro Fujita, Yukiko Masuda, Shigeto Maeda, Ichiro Horie, Takao Ando, Norio Abiru, Atsushi Kawakami
A 46-year-old woman with a history of Graves' disease presented with the chief complaints of appetite loss, weight loss, fatigue, nausea, and sweating. She was diagnosed with diabetic ketoacidosis (DKA), thyroid storm, and influenza A. She was treated with an intravenous insulin drip, intravenous fluid therapy, intravenous hydrocortisone, oral potassium iodine, and oral methimazole. As methimazole-induced neutropenia was suspected, the patient underwent thyroidectomy. It is important to maintain awareness that thyroid storm and DKA can coexist...
2017: Internal Medicine
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