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https://www.readbyqxmd.com/read/29620972/an-online-survey-of-hypothyroid-patients-demonstrates-prominent-dissatisfaction
#1
Sarah J Peterson, Anne R Cappola, M Regina Castro, Colin M Dayan, Alan P Farwell, James V Hennessey, Peter A Kopp, Douglas S Ross, Mary H Samuels, Anna M Sawka, Peter N Taylor, Jacqueline Jonklaas, Antonio C Bianco
BACKGROUND: Approximately 15% more patients taking levothyroxine (LT4) report impaired quality of life compared to controls. This could be explained by additional diagnoses independently affecting quality of life and complicating assignment of causation. This study sought to investigate the underpinnings of reduced quality of life in hypothyroid patients and to provide data for discussion at a symposium addressing hypothyroidism. METHODS: An online survey for hypothyroid patients was posted on the American Thyroid Association Web site and forwarded to multiple groups...
April 5, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29508635/sexual-function-and-depressive-symptoms-in-young-women-with-hypothyroidism-receiving-levothyroxine-liothyronine-combination-therapy-a-pilot-study
#2
Robert Krysiak, Witold Szkróbka, Bogusław Okopień
Objective Even mild hypothyroidism in pre-menopausal women is accompanied by impaired sexual functioning. The study was aimed at comparing the effect of levothyroxine, administered alone or in combination with liothyronine, on sexual function and depressive symptoms in pre-menopausal women treated because of hypothyroidism. Methods This quasi-randomized, single-blind study included 39 young women receiving levothyroxine treatment who, despite thyrotropin and thyroid hormone levels within normal limits, still experienced clinical symptoms of hypothyroidism...
March 29, 2018: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29375671/management-of-hypothyroidism-with-combination-thyroxine-t4-and-triiodothyronine-t3-hormone-replacement-in-clinical-practice-a-review-of-suggested-guidance
#3
REVIEW
Colin Dayan, Vijay Panicker
Background: Whilst trials of combination levothyroxine/liothyronine therapy versus levothyroxine monotherapy for thyroid hormone replacement have not shown any superiority, there remains a small subset of patients who do not feel well on monotherapy. Whilst current guidelines do not suggest routine use of combination therapy they do acknowledge a trial in such patients may be appropriate. It appears that use of combination therapy and dessicated thyroid extract is not uncommon but often being used by non-specialists and not adequately monitored...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29319127/sexual-function-and-depressive-symptoms-in-young-men-with-hypothyroidism-receiving-levothyroxine-liothyronine-combination-therapy
#4
Robert Krysiak, Bogdan Marek, Bogusław Okopień
INTRODUCTION: Both overt and subclinical hypothyroidism are often accompanied by sexual dysfunction. Despite improving male sexual functioning, levothyroxine treatment does not always restore all its aspects. The aim of this study was to compare male sexual function-ing and depressive symptoms between men with hypothyroidism receiving levothyroxine/liothyronine combination therapy and men receiving levothyroxine alone. MATERIAL AND METHODS: The study population consisted of 21 young levothyroxine-treated men with clinical symptoms of hypothyroid-ism, in whom serum thyrotropin and thyroid hormone levels were within the normal limits...
2018: Endokrynologia Polska
https://www.readbyqxmd.com/read/29233028/therapeutic-effects-of-oral-liothyronine-on-aluminum-phosphide-poisoning-as-an-adjuvant-therapy-a-clinical-trial
#5
M H Goharbari, F Taghaddosinejad, M Arefi, M Sharifzadeh, M Mojtahedzadeh, S Nikfar, M Baeeri, M Rahimifard, M Abdollahi
BACKGROUND: In aluminum phosphide (AlP) poisoning, death is mainly due to cardiovascular failure and refractory acute heart failure. There is a lot of evidence showing thyroid hormones have cardioprotective effects. OBJECTIVE: The purpose of this study was to evaluate the effect of oral liothyronine in the treatment of AlP poisoning. METHODS: Twenty-four patients from intensive care unit of Baharloo Hospital, Tehran, Iran, were included based on the inclusion and exclusion criteria...
February 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29216618/kinetic-analysis-of-drug-release-from-compounded-slow-release-capsules-of-liothyronine-sodium-t3
#6
Hamid Bakhteyar, Clayton Cassone, Hamed Gilzad Kohan, Shabnam N Sani
The purpose of this study was to formulate extemporaneously compounded Liothyronine Sodium (T3) slow-release capsules and to evaluate their in vitro drug release performance. Twenty-one formulations containing T3 (7.5 µg) with various compositions of two different grades of Methocel E4M and K100M premium (30% to 90%), and/or SimpleCap/Lactose (10% to 70%) were examined. Quality assessment of the capsules was conducted by standard quality control criteria of the United States Pharmacopeia (i.e., weight variation, content uniformity) to ensure their compliance...
September 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/29125479/plasma-3-3-5-triiodo-l-thyronine-t3-level-mirrors-changes-in-tumor-markers-in-two-cases-of-metastatic-cancer-of-the-breast-and-pancreas-treated-with-exogenous-l-t3
#7
Alejandro Rodríguez-Molinero, Aleck Hercbergs, Manuel Sarrias, Antonio Yuste
Preclinical studies have attributed 3,3',5-triiodo-L-thyronine (T3) a direct negative effect on tumor progression, as well as chemosensitizing, differentiating and immunomodulatory properties. On the other hand, L-thyroxine (T4), via a thyroid hormone receptor on plasma membrane integrin αvβ3, promotes solid tumor growth and neoangiogenesis, therefore lowering endogenous T4 reduces tumor growth rate. We present the case of two patients with metastatic triple negative breast cancer and metastatic pancreatic cancer respectively, who benefit of the sole treatment with antithyroid drugs and exogenous administration of T3 (liothyronine)...
February 6, 2018: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28989211/high-resolution-free-triiodothyronine-thyrotropin-ft3-tsh-responses-to-a-single-oral-dose-of-liothyronine-in-humans-evidence-of-distinct-inter-individual-differences-unraveled-using-an-electrical-network-model
#8
Simon L Goede, Keith R Latham, Melvin Khee-Shing Leow, Jacqueline Jonklaas
The effects of a single oral dose of liothyronine (L-T3) on thyroid stimulating hormone (TSH) and other related thyroid system parameters are partly understood despite therapeutic use of this hormone over many decades. We characterize individualized responses of the hypothalamus-pituitary-thyroid (HPT) axis and its related temporal hormonal profile using an electrical network model. Based on thyroid hormone responses from blood samples using a single 50 μ g oral dose of liothyronine in healthy persons with a normal operating euthyroid feedback HPT system, we derived an equivalent electrical circuit model for the system's responses...
March 2017: Journal of Biological Systems
https://www.readbyqxmd.com/read/28632526/persistent-hypothyroid-symptoms-in-a-patient-with-a-normal-thyroid-stimulating-hormone-level
#9
REVIEW
Jacqueline Jonklaas
PURPOSE OF REVIEW: A subset of patients being treated for hypothyroidism do not feel well while taking levothyroxine (LT4) replacement therapy, despite having a normal serum thyroid stimulating hormone level. Pursuing a relative triiodothyronine deficiency as a potential explanation for patient dissatisfaction, has led to trials of combination therapy with liothyronine (LT3), with largely negative outcomes. This review attempts to reconcile these diverse findings, consider potential explanations, and identify areas for future research...
October 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/28620499/intrauterine-death-following-intraamniotic-triiodothyronine-and-thyroxine-therapy-for-fetal-goitrous-hypothyroidism-associated-with-polyhydramnios-and-caused-by-a-thyroglobulin-mutation
#10
Pradeep Vasudevan, Corrina Powell, Adeline K Nicholas, Ian Scudamore, James Greening, Soo-Mi Park, Nadia Schoenmakers
In the absence of maternal thyroid disease or iodine deficiency, fetal goitre is rare and usually attributable to dyshormonogenesis, for which genetic ascertainment is not always undertaken in the UK. Mechanical complications include tracheal and oesophageal compression with resultant polyhydramnios, malpresentation at delivery and neonatal respiratory distress. We report an Indian kindred in which the proband (first-born son) had congenital hypothyroidism (CH) without obvious neonatal goitre. His mother's second pregnancy was complicated by fetal hypothyroid goitre and polyhydramnios, prompting amniotic fluid drainage and intraamniotic therapy (with liothyronine, T3 and levothyroxine, T4)...
2017: Endocrinology, Diabetes & Metabolism Case Reports
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
#11
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 (LT3 Na) 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 (LT4 Na) could be applied to the newly characterized liothyronine sodium impurities resulting in a wholistic thyroid API impurity classification system...
September 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28589090/neither-baseline-nor-changes-in-serum-triiodothyronine-during-levothyroxine-liothyronine-combination-therapy-predict-a-positive-response-to-this-treatment-modality-in-hypothyroid-patients-with-persistent-symptoms
#12
Bjarke Borregaard Medici, Jeppe Lerche la Cour, Luba Freja Michaelsson, Jens Oscar Faber, Birte Nygaard
BACKGROUND: Despite biochemical euthyroidism, some levothyroxine (L-T4)-treated hypothyroid patients report persisting symptoms and some of these patients are tentatively treated with a combination of L-T4 and liothyronine (L-T3). Combination therapy and the appropriate choice of blood tests to monitor treatment are highly debated among specialists and patients. AIM: To evaluate whether measuring serum triiodothyronine (S-T3) at baseline or during combination therapy can be used as an indicator of a positive effect from L-T4/L-T3 combination therapy...
April 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/28584694/liothyronine-for-depression-a-review-and-guidance-for-safety-monitoring
#13
REVIEW
Katie T B Touma, Allysa M Zoucha, Jonathan R Scarff
Objective: The objective of this review is to discuss triiodothyronine's (T3, liothyronine) mechanism of action, efficacy in enhancement and augmentation trials, and dosing and safety considerations for the treatment of depression. Method: A literature search of PubMed was performed using search terms depression, augmentation, antidepressant, and liothyronine. Only English-language studies of subjects with unipolar depression were included from the past 50 years. Results: Most studies have shown that liothyronine is an efficacious enhancement and augmentation strategy for depression in combination with antidepressants, primarily tricyclic antidepressants and selective serotonin reuptake inhibitors...
March 2017: Innovations in Clinical Neuroscience
https://www.readbyqxmd.com/read/28420821/use-of-liothyronine-without-levothyroxine-in-the-treatment-of-mild-consumptive-hypothyroidism-caused-by-hepatic-hemangiomas
#14
Shinji Higuchi, Masaki Takagi, Yukihiro Hasegawa
There have been reports of the use of levothyroxine or levothyroxine plus liothyronine for consumptive hypothyroidism caused by hepatic hemangiomas. Administration of levothyroxine without liothyronine can be inadequate to maintain normal levels of both free T3 and free T4 in some patients. However, there is no report of treatment with liothyronine plus propranolol. We herein present a case in which we used liothyronine therapy for multifocal hepatic hemangiomas in a Japanese patient with low free T3 and normal free T4 levels...
June 29, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/27982198/treatment-of-hypothyroidism-with-levothyroxine-plus-liothyronine-a-randomized-double-blind-crossover-study
#15
RANDOMIZED CONTROLLED TRIAL
Juliana Kaminski, Fabíola Yukiko Miasaki, Gilberto Paz-Filho, Hans Graf, Gisah Amaral de Carvalho
Objective: To compare the effects of a unique fixed combination levothyroxine/liothyronine (LT4/LT3) therapy in patients with primary hypothyroidism. Subjects and methods: This is a randomized, double-blind, crossover study. Adults with primary hypothyroidism (n = 32, age 42.6 ± 13.3, 30 females) on stable doses of LT4 for ≥ 6 months (125 or 150 μg/day) were randomized to continue LT4 treatment (G1) or to start LT4/LT3 therapy (75/15 μg/day; G2). After 8 weeks, participants switched treatments for 8 more weeks...
November 2016: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27902975/timing-of-hormone-withdrawal-in-children-undergoing-131i-whole-body-scans-for-thyroid-cancer
#16
Sophie Turpin, Raymond Lambert, Cheri Deal
BACKGROUND: Little objective pediatric data exist to guide the optimal time needed to achieve thyroid-stimulating hormone (TSH) levels ≥30 μIU/mL prior to performing 131I or 123I whole-body scan (WBS) imaging in children with thyroid cancer in the post-thyroidectomy period or after hormone discontinuation. METHODS: Retrospective study of patients aged 5-19 years who underwent WBS. Patient data collection included type and duration of withdrawal (liothyronine [L-T3], levothyroxine [L-T4], or post-thyroidectomy status without hormonal replacement) and TSH measured prior to WBS (level and timing)...
2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27178621/liothyronine-improves-biochemical-control-of-congenital-hypothyroidism-in-patients-with-central-resistance-to-thyroid-hormone
#17
Laura Paone, Abby F Fleisch, Henry A Feldman, Rosalind S Brown, Ari J Wassner
OBJECTIVE: To assess whether adding liothyronine (LT3) to levothyroxine (LT4) monotherapy normalizes serum thyrotropin (TSH) and thyroxine (T4) concentrations in children with congenital hypothyroidism and central resistance to thyroid hormone. STUDY DESIGN: We retrospectively studied 12 patients with congenital hypothyroidism and central resistance to thyroid hormone (6 treated with LT3+LT4 combined therapy and 6 treated with LT4 monotherapy). In patients receiving combined therapy, we compared serum concentrations of TSH, T4, and triiodothyronine before and after addition of LT3...
August 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27137849/risks-and-safety-of-combination-therapy-for-hypothyroidism
#18
REVIEW
Jacqueline Jonklaas
INTRODUCTION: Hypothyroidism is currently a condition that can be treated, but not cured. Although levothyroxine reverses stigmata of hypothyroidism in most individuals, some patients feel dissatisfied with 'monotherapy', and this has stimulated interest in 'combination therapy' with both levothyroxine and liothyronine. AREAS COVERED: A search of PubMed was conducted using terms including hypothyroidism, treatment, benefits, risks, and safety. Based on the articles identified, the body of evidence regarding the efficacy of traditional levothyroxine is reviewed...
August 2016: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/27126268/thyroxine-replacement-a-clinical-endocrinologist-s-viewpoint
#19
REVIEW
V Eligar, P N Taylor, O E Okosieme, G P Leese, C M Dayan
BACKGROUND: Hypothyroidism affects 2-5% of the general population. Patients with uncorrected disease suffer significant morbidity and have an increased risk of cardiovascular disease and neurocognitive impairment. Levothyroxine, the treatment of choice, is inexpensive, easy to administer and in most cases restores well-being while normalizing thyroid function. However, 30-50% of individuals on levothyroxine are either over-treated or under-treated and others remain dissatisfied with treatment despite achieving thyroid hormone concentrations within the laboratory reference interval...
July 2016: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/27030088/daily-administration-of-short-acting-liothyronine-is-associated-with-significant-triiodothyronine-excursions-and-fails-to-alter-thyroid-responsive-parameters
#20
Jacqueline Jonklaas, Kenneth D Burman
BACKGROUND: Although most studies of levothyroxine-liothyronine combination therapy employ once-daily hormone administration, the kinetics of once-daily liothyronine have been studied infrequently. The aim of this study was to document both the peak and trough serum triiodothyronine (T3) levels that occur with once-daily liothyronine administration, along with changes in thyroid-responsive parameters. METHODS: Participants with hypothyroidism were studied prospectively at an academic institution...
June 2016: Thyroid: Official Journal of the American Thyroid Association
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