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https://www.readbyqxmd.com/read/29225840/severe-thyrotoxicosis-in-an-infant-revealing-familial-nonautoimmune-hyperthyroidism-with-a-novel-c672w-stimulating-thyrotropin-receptor-germline-mutation
#1
Isabelle Oliver-Petit, Frédérique Savagner, Solange Grunenwald, Magaly Vialon, Thomas Edouard, Philippe Caron
We describe severe thyrotoxicosis in young members of a family with nonautoimmune hyperthyroidism caused by a C672W germline mutation in exon 10 of TSHR gene. In this family, lack of genotype-phenotype correlation and anticipation across generations could be linked to an increased iodine intake as recently observed in France.
December 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/29222211/lingual-dyskinesia-in-hyperthyroidism
#2
Adlyne Reena Asirvatham, Karthik Balachandran, Shriraam Mahadevan, Satishkumar Balasubramanian
No abstract text is available yet for this article.
December 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29219824/thyrotoxic-periodic-paralysis-an-unusual-presentation-of-hyperthyroidism
#3
M Salih, C M J van Kinschot, R P Peeters, W W de Herder, E J J Duschek, J van der Linden, C van Noord
Thyrotoxic periodic paralysis (TPP) is a complication of hyperthyroidism among Asians, characterised by sudden onset of hypokalaemia and muscle paralysis. Several factors may contribute to a delay in diagnosis, including the subtlety of hyperthyroidism, the transient nature of the events and the rarity of this disease in the West. As life-threatening arrhythmias may occur during an attack, awareness among physicians is necessary for early recognition and treatment. Advances have been made in understanding the pathophysiological mechanism leading to hypokalaemia, which include recently identified mutations of the inwardly rectifying potassium channel Kir2...
October 2017: Netherlands Journal of Medicine
https://www.readbyqxmd.com/read/29218410/cardioprotective-effect-of-thyroid-hormone-is-mediated-by-at2-receptor-and-involves-nitric-oxide-production-via-akt-activation-in-mice
#4
Ivson Bezerra da Silva, Dayane Aparecida Gomes, Natalia Alenina, Michael Bader, Robson Augusto Dos Santos, Maria Luiza M Barreto-Chaves
Studies have demonstrated that thyroid hormone (T3) can precondition the heart against ischaemic injury and improve post-ischaemic recovery. This study investigated whether the AT2 receptor (AT2R) is involved in cardioprotection and the potential molecular mechanism responsible for this effect. Hyperthyroidism was induced in male wild-type (WT) and AT2R knockout (KO) mice by administering daily intraperitoneal injections of T3 (7 μg/100 g body weight) for 14 days. The mouse hearts were harvested and perfused with a Krebs-Henseleit solution at a constant flow in a Langendorff set-up...
December 7, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29214681/thyroid-hormones-alter-estrous-cyclicity-and-antioxidative-status-in-the-ovaries-of-rats
#5
Quanwei Wei, Jaafar Sulieman Fedail, Lingfa Kong, Kaizhi Zheng, Chunhua Meng, Mohamed Babo Fadlalla, Fangxiong Shi
To expand our understanding of the roles of thyroid hormones on female reproduction, we induced hypo- and hyper-T rat models to investigate the roles of thyroid hormones on estrous cyclicity, as well as the antioxidative status in the ovaries of rats. In the current study, our data show that hypothyroidism (hypo-T) and hyperthyroidism (hyper-T) led to significantly reduced body weights and ovarain weights and delayed vaginal opening day. For hyper-T, thyroxine (T4), tri-iodothyronine (T3), progesterone (P4) and follicle-stimulating hormone (FSH) were significantly increased, while estradiol (E2) and luteinizing hormone (LH) were significantly decreased...
December 7, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29214084/coexistence-of-primary-hyperaldosteronism-and-graves-disease-a-rare-combination-of-endocrine-disorders-is-it-beyond-a-coincidence-a-case-report-and-review-of-the-literature
#6
S S C Gunatilake, U Bulugahapitiya
Background: Primary hyperaldosteronism is a known cause for secondary hypertension. In addition to its effect on blood pressure, aldosterone exhibits proinflammatory actions and plays a role in immunomodulation/development of autoimmunity. Recent researches also suggest significant thyroid dysfunction among patients with hyperaldosteronism, but exact causal relationship is not established. Autoimmune hyperthyroidism (Graves' disease) and primary hyperaldosteronism rarely coexist but underlying mechanisms associating the two are still unclear...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/29208878/study-of-thyroid-disorders-among-type-2-diabetic-patients-attending-a-tertiary-care-hospital
#7
N Z Khan, M A Muttalib, G S Sultana, F A Mishu, A Nesa
Type 2 diabetes mellitus (T2DM) and thyroid disorders (TD) are the two most common endocrine disorders in clinical practice. Unrecognized thyroid disorders may adversely affect the metabolic control and add more risk to an already predisposing type 2 diabetes mellitus. The objective of the study is to find out the percentage of hypothyroidism and hyperthyroidism in patients with type 2 diabetes mellitus and non diabetic subjects. This cross-sectional study was conducted in the department of Biochemistry and outpatient Department of Endocrinology, BIRDEM General Hospital, Dhaka, Bangladesh from July 2014 to June 2015...
October 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29207121/percentage-and-function-of-cd4-cd25-regulatory-t-cells-in-patients-with-hyperthyroidism
#8
Ting-Jun Jiang, Xue-Liang Cao, Sha Luan, Wan-Hui Cui, Si-Huang Qiu, Yi-Chao Wang, Chang-Jiu Zhao, Peng Fu
The current study observed the percentage of peripheral blood (PB) CD4+CD25+ regulatory T cells (Tregs) and the influence of CD4+CD25+ Tregs on the proliferation of naïve CD4 T cells in patients with hyperthyroidism. Furthermore, preliminary discussions are presented on the action mechanism of CD4+CD25+ Tregs on hyperthyroidism attacks. The present study identified that compared with the percentage of PB CD4+CD25+ Tregs in healthy control subjects, no significant changes were observed in the percentage of PB CD4+CD25+ Tregs in patients with hyperthyroidism (P>0...
November 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29204312/insights-into-pathophysiology-from-medication-induced-tremor
#9
REVIEW
John C Morgan, Julie A Kurek, Jennie L Davis, Kapil D Sethi
Background: Medication-induced tremor (MIT) is common in clinical practice and there are many medications/drugs that can cause or exacerbate tremors. MIT typically occurs by enhancement of physiological tremor (EPT), but not all drugs cause tremor in this way. In this manuscript, we review how some common examples of MIT have informed us about the pathophysiology of tremor. Methods: We performed a PubMed literature search for published articles dealing with MIT and attempted to identify articles that especially dealt with the medication's mechanism of inducing tremor...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/29204277/cytomegalovirus-mononucleosis-induced-thyroiditis-in-an-immunocompetent-patient
#10
V Larouche, M Tamilia
Enteroviruses, including coxsackieviruses and Echovirus, are well known pathogens responsible for the development of thyroiditis. We describe the case of a 49-year-old woman with no personal or family history of thyroid disease who presented to the emergency room with a two-week history of daily fevers up to 39°C, a sore throat, occasional palpitations and diaphoresis, decreased appetite and an unintentional 10 kg weight loss over the same time course Physical examination revealed mild tachycardia, an intention tremor and a normal-sized, nontender thyroid gland without palpable nodules...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29201071/hemostasis-in-overt-and-subclinical-hyperthyroidism
#11
REVIEW
Arash Ordookhani, Kenneth D Burman
Context: There are contradictory results on the effect of hyperthyroidism on hemostasis. Inadequate population-based studies limited their clinical implications, mainly on the risk of venous thromboembolism (VTE). The present review focuses on hemostatic changes in overt and subclinical hyperthyroidism. Methods: A systematic literature search was conducted employing MEDLINE database. The following words were used for the search: Hyperthyroidism; thyrotoxicosis; Graves disease; goiter, nodular; hemostasis; blood coagulation factors; blood coagulation disorders; venous thromboembolism; bleeding; fibrinolysis...
July 2017: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29200896/methamphetamine-use-with-subsequent-thyrotoxicosis-thyroid-storm-agranulocytosis-and-modified-total-thyroidectomy-a-case-report
#12
Omar Viswanath, Deanna C Menapace, Don B Headley
Thyroid storm is a rare, potentially lethal condition involving collapse of the hypothalamic-pituitary-thyroid feedback loop. Thyroid storm carries a significant mortality rate, thus requiring prompt identification and treatment. A 47-year-old woman presented to the emergency department complaining of palpitations, shortness of breath, and emesis for 24 hours after using methamphetamine. Past medical history was significant for untreated hyperthyroidism. Physical examination revealed a prominent, palpable thyroid...
2017: Clinical Medicine Insights. Ear, Nose and Throat
https://www.readbyqxmd.com/read/29198022/hyperthyroid-patients-without-graves-orbitopathy-are-not-at-increased-risk-of-developing-glaucoma-a-nationwide-danish-register-based-case-control-study
#13
F Brandt, M Thvilum, L Hegedüs, T H Brix
PURPOSE: Graves' disease (GD) and toxic nodular goiter (TNG) are associated with various comorbidities. However, it is unclarified whether TNG and GD without orbitopathy are associated with glaucoma. METHODS: This was a case-control study using record-linkage data from nationwide Danish health registers. 28,461 patients with GD and 17,283 with TNG were included. Each case was age and sex matched with four non-hyperthyroid controls and followed over a mean period of 8 years...
December 2, 2017: Endocrine
https://www.readbyqxmd.com/read/29197093/the-association-between-irisin-and-muscle-metabolism-in-different-thyroid-disorders
#14
Ariadna Zybek-Kocik, Nadia Sawicka-Gutaj, Ewelina Szczepanek-Parulska, Mirosław Andrusiewicz, Joanna Waligórska-Stachura, Piotr Białas, Tomasz Krauze, Przemysław Guzik, Jerzy Skrobisz, Marek Ruchała
BACKGROUND: Irisin is a new adipo-myokine, encoded by the FNDC5 gene. Currently, there is a discussion regarding the relation between thyroid function and irisin concentration. This prospective study assesses the influence of thyrometabolic changes on serum irisin concentration in association with altered muscle metabolism. This is performed on a large cohort of patients affected by severe hypo- or hyperthyroidism, as well as by the expression of the FNDC5 gene in thyroid tissue affected by different pathologies...
December 2, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29194452/hyperthyroidism-but-not-hypertension-impairs-pitx2-expression-leading-to-wnt-microrna-ion-channel-remodeling
#15
Estefanía Lozano-Velasco, Rosemary Wangensteen, Andrés Quesada, Carlos Garcia-Padilla, Julia A Osorio, María Dolores Ruiz-Torres, Amelia Aranega, Diego Franco
PITX2 is a homeobox transcription factor involved in embryonic left/right signaling and more recently has been associated to cardiac arrhythmias. Genome wide association studies have pinpointed PITX2 as a major player underlying atrial fibrillation (AF). We have previously described that PITX2 expression is impaired in AF patients. Furthermore, distinct studies demonstrate that Pitx2 insufficiency leads to complex gene regulatory network remodeling, i.e. Wnt>microRNAs, leading to ion channel impairment and thus to arrhythmogenic events in mice...
2017: PloS One
https://www.readbyqxmd.com/read/29193251/which-patients-with-gynaecomastia-require-more-detailed-investigation
#16
S N Ali, C N Jayasena, A H Sam
Gynaecomastia may be due to medication, chronic liver or kidney disease, hypogonadism (primary or secondary to pituitary disease) or hyperthyroidism. Having excluded these aetiologies, it is imperative to be vigilant for underlying malignancy causing gynaecomastia. These include human chorionic gonadotrophin-secreting testicular and extratesticular tumours, and oestrogen-secreting testicular tumours and feminising adrenal tumours. This article is protected by copyright. All rights reserved.
November 29, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29189376/clinical-significance-of-a-solitary-cold-thyroid-nodule-in-the-setting-of-graves-disease
#17
Dwight M Achong
I-NaI thyroid uptake and scan in a 46-year-old woman with symptomatic hyperthyroidism demonstrated marked, diffusely increased uptake consistent with Graves disease, as well as a solitary hypofunctioning ("cold") nodule. Pathologic evaluation following total thyroidectomy and selective neck dissection revealed invasive multifocal papillary thyroid carcinoma in a background of Graves disease and 5 of 36 lymph nodes positive for metastatic disease. This case serves as a reminder that when present a cold nodule in the setting of Graves disease warrants further evaluation for underlying malignancy...
November 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29189171/inappropriate-sinus-tachycardia
#18
Mohammed Ruzieh, Abdelmoniem Moustafa, Ebrahim Sabbagh, Ebrahim Sabbagh, Saima Karim
Definition and diagnosis: Inappropriate Sinus Tachycardia (IST) is a clinical syndrome characterized by a sinus heart rate inexplicably higher than one hundred beats per minute at rest that is associated with symptoms like palpitations, dyspnea or dizziness in the absence of primary causes of tachycardia. The diagnosis requires exclusion of other causes of tachycardia including medications/substances (such as anti-cholinergic, beta-blocker withdrawal, caffeine, and alcohol) or medical conditions (such as panic attacks, pulmonary embolism, fever, hyperthyroidism, hypovolemia, anemia, and pain)...
November 29, 2017: Current Cardiology Reviews
https://www.readbyqxmd.com/read/29188160/severe-hyperthyroidism-masquerading-as-acute-bulbar-weakness
#19
Rena D Sukhdeo, Christopher Jackson, Cyrilyn Walters, Aneel Kumar
The stroke occurs in nearly 800,000 patients per year in the United States with significant morbidity if not treated and managed in a time sensitive manner. Acute bulbar weakness can be a common presenting manifestation of acute stroke and transient ischemic attack. However, up to 30% of the patients presenting with symptoms concerning for stroke could be displaying a disease process that mimics the stroke. These disorders include hypoglycemia, seizures, complicated migraines, and endocrinopathies such as thyroid disease...
September 27, 2017: Curēus
https://www.readbyqxmd.com/read/29184811/dermatologic-manifestations-of-endocrine-disorders
#20
REVIEW
Michael Lause, Alisha Kamboj, Esteban Fernandez Faith
The skin serves as a window for clinicians to understand, diagnose, and monitor endocrine disease. Dermatologic manifestations of endocrinopathies contribute significantly to an individual's health and quality of life. In this review, we outline various disorders of the hypothalamic-pituitary axis, thyroid gland, pancreas, adrenal gland, and androgen axis as well as hereditary endocrine syndromes. In acromegaly, glycosaminoglycan deposition contributes to a thickening of skin and soft tissue, which manifests as coarsening and enlargement of facial and acral structures...
October 2017: Translational pediatrics
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