keyword
MENU ▼
Read by QxMD icon Read
search

Levothyroxine

keyword
https://www.readbyqxmd.com/read/29759035/a-novel-missense-mutation-in-slc5a5-gene-in-a-sudanese-family-with-congenital-hypothyroidism
#1
Yui Watanabe, Reham Shareef Ebrhim, Mohamed A Abdullah, Roy E Weiss
Thyroid hormone synthesis requires the presence of iodide. The sodium iodide symporter (NIS) is a glycoprotein which mediates the active uptake of iodide from the blood stream into the thyroid grand. NIS defects due to SLC5A5 gene mutations are known to cause congenital hypothyroidism (CH). The proposita is a 28-year-old female whose origin is the North Sudan where neonatal screening for CH is not available. She presented with severe constipation and a goiter at the age of 40 days. Laboratory testing confirmed CH and she was started on levothyroxine (L-T4)...
May 15, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29757661/a-pivotal-field-study-to-support-the-registration-of-levothyroxine-sodium-tablets-for-canine-hypothyroidism
#2
Victoria A Lewis, Carla M K Morrow, Johnny A Jacobsen, W Eugene Lloyd
A prospective, pivotal, multicenter field study to evaluate the dose regimen, effectiveness, and safety of levothyroxine sodium tablets, USP for the treatment of hypothyroidism and hypothyroidism-associated clinical signs in dogs was conducted. Ninety-two dogs diagnosed with primary hypothyroidism met the entrance criteria and were enrolled into the study. Levothyroxine sodium was administered to each dog on a daily basis either as the whole dose q 24 hr or as half the dose q 12 hr. Dosing started at 0.1 mg/10 lb (0...
May 14, 2018: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/29738593/bilateral-keratoconus-induced-by-secondary-hypothyroidism-after-radioactive-iodine-therapy
#3
Ramon Lee, Farhad Hafezi, J Bradley Randleman
PURPOSE: To present a case of new-onset, bilateral, rapidly progressive keratoconus induced by secondary hypothyroidism after radioactive iodine therapy during the sixth decade of life that was successfully treated with corneal cross-linking. METHODS: Case report and literature review. RESULTS: A 53-year-old woman with no ocular complaints but with a history of Graves' disease and thyrotoxicosis was treated with radioactive iodine therapy and oral levothyroxine for secondary acquired hypothyroidism 3 years prior...
May 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29737268/evaluation-and-management-of-the-child-with-hypothyroidism
#4
Alexander A C Leung, Alexander K C Leung
BACKGROUND: Thyroid hormones are critical for early neurocognitive development as well as growth and development throughout childhood. Prompt recognition and treatment of hypothyroidism is therefore of utmost importance to optimize physical and neurodevelopmental outcomes. OBJECTIVE: To review in depth the evaluation, diagnosis, and treatment of hypothyroidism in children. METHODS: A PubMed search was completed in Clinical Queries using the key term "hypothyroidism"...
May 8, 2018: Recent Patents on Endocrine, Metabolic & Immune Drug Discovery
https://www.readbyqxmd.com/read/29735582/thyroid-hormones-are-transport-substrates-and-transcriptional-regulators-of-organic-anion-transporting-polypeptide-2b1
#5
Henriette E Meyer Zu Schwabedissen, Celio Ferreira, Anima M Schaefer, Mouhssin Oufir, Isabell Seibert, Matthias Hamburger, Rommel G Tirona
Levothyroxine replacement therapy forms the cornerstone of hypothyroidism management. Variability in levothyroxine oral absorption may contribute to the well-recognized large interpatient differences in required dose. Moreover, levothyroxine-drug pharmacokinetic interactions are thought to be caused by altered oral bioavailability. Interestingly, little is known regarding the mechanisms contributing to levothyroxine absorption in the gastrointestinal tract. Here, we aimed to determine whether the intestinal drug uptake transporter Organic Anion Transporting Polypeptide 2B1 (OATP2B1) may be involved in facilitating intestinal absorption of thyroid hormones...
May 7, 2018: Molecular Pharmacology
https://www.readbyqxmd.com/read/29732163/dual-ectopic-thyroid-associated-with-thyroid-hemiagenesis
#6
Shigenori Nakamura, Teruyuki Masuda, Masatoshi Ishimori
We report a case of a 15-year-old girl with a midline neck mass that was first noted 2 or 3 years previously. She had been treated with levothyroxine (L-T4) for congenital hypothyroidism until 11 years of age. Ultrasonography revealed an atrophic right thyroid (1.0 × 1.6 × 2.6 cm in size) and a mass (2.3 × 1.0 × 3.5 cm in size) in the upper part of the neck. No left lobe of the thyroid was detected. On further evaluation, Tc-99m pertechnetate thyroid scintigraphy and CT showed ectopic thyroid tissue in the lingual region and infrahyoid region...
2018: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29730659/myxedema-coma-due-to-hashimoto-thyroiditis-a-rare-but-real-presentation-of-failure-to-thrive-in-infancy
#7
Ryan A Heksch, Rohan K Henry
BACKGROUND: Hashimoto thyroiditis (HT) is uncommon in infancy, and myxedema coma (MC) is even less common. While prior reports have documented these entities separately, to our knowledge, MC in combination with HT has not been reported before in this age group. METHODS/RESULTS: A 10-month-old female presented with ptosis, lethargy, dysphagia, and failure to thrive (FTT). She developed hypotension, bradycardia, hypothermia, and apnea requiring intubation. Initial thyroid-stimulating hormone was 422 μIU/mL, and free thyroxine was < 0...
May 4, 2018: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29729151/subclinical-hypothyroidism-in-patients-with-non-alcoholic-fatty-liver-disease-at-the-background-of-carbohydrate-metabolism-disorders
#8
Snizhana V Feisa, Ivan V Chopei
OBJECTIVE: Introduction: The prevalence of non-alcoholic fatty liver disease (NAFLD) is 25-30% in the general population and more than 75% among patients with carbohydrate metabolism disorders. One in six patients with NAFLD has concomitant subclinical hypothyroidism. The aim is to compare lipid and carbohydrate metabolism states in patients with NAFLD depending on the functional state of the thyroid gland. PATIENTS AND METHODS: Materials and methods:215 patients with NAFLD and type 2 diabetes mellitus (T2-DM) or pre-diabetes (PD) were involved in study and devided into 6 groups according to the functional state of the thyroid gland...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29729004/italian-consensus-on-diagnosis-and-treatment-of-differentiated-thyroid-cancer-joint-statements-of-six-italian-societies
#9
F Pacini, F Basolo, R Bellantone, G Boni, M A Cannizzaro, M De Palma, C Durante, R Elisei, G Fadda, A Frasoldati, L Fugazzola, R Guglielmi, C P Lombardi, P Miccoli, E Papini, G Pellegriti, L Pezzullo, A Pontecorvi, M Salvatori, E Seregni, P Vitti
BACKGROUND: Thyroid nodules are a common clinical problem, and differentiated thyroid cancer is becoming increasingly prevalent. METHODS: Six scientific Italian societies entitled to cure thyroid cancer patients (the Italian Thyroid Association, the Medical Endocrinology Association, the Italian Society of Endocrinology, the Italian Association of Nuclear Medicine and Molecular Imaging, the Italian Society of Unified Endocrine Surgery and the Italian Society of Anatomic Pathology and Diagnostic Cytology) felt the need to develop a consensus report based on significant scientific advances occurred in the field...
May 4, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29722287/effects-of-enteral-different-dose-levothyroxine-sodium-pretreatment-on-serum-thyroid-hormone-levels-and-myocardial-ischemia-reperfusion-injury
#10
Gui-Zhen Yang, Fu-Shan Xue, Ya-Yang Liu, Hui-Xian Li, Qing Liu, Xu Liao
INTRODUCTION: The available evidence shows that perioperative oral thyroid hormone can significantly attenuate the postoperative decline in the serum hormone level and improve postoperative hemodynamic and prognostic parameters. However, there has been no study assessing the effects of preoperative oral different-dose thyroid hormone on serum hormone levels and myocardial ischemia-reperfusion injury (IRI) after cardiac surgery. METHODS: Forty-eight healthy Wistar rats, aged 35 days, were randomly allocated into six groups: Group BC, Group C and four pretreatment groups in which the rats were given levothyroxine-sodium of 10 μg, 20 μg, 40 μg and 80 μg/100 g...
April 1, 2018: Perfusion
https://www.readbyqxmd.com/read/29720960/increased-requirement-of-replacement-doses-of-levothyroxine-caused-by-liver-cirrhosis
#11
Salvatore Benvenga, Giovanni Capodicasa, Sarah Perelli, Silvia Martina Ferrari, Poupak Fallahi, Alessandro Antonelli
Background: Since hypothyroidism is a fairly common dysfunction, levothyroxine (L-T4) is one of the most prescribed medications. Approximately 70% of the administered L-T4 dose is absorbed. The absorption process takes place in the small intestine. Some disorders of the digestive system and some medicines, supplements, and drinks cause L-T4 malabsorption, resulting in failure of serum TSH to be normal. Only rarely liver cirrhosis is mentioned as causing L-T4 malabsorption. Case report: In this study, we report increased requirement of daily doses of l-thyroxine in two patients with the atrophic variant of Hashimoto's thyroiditis and liver cirrhosis...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29720101/a-novel-mutation-in-the-tg-gene-g2322s-causing-congenital-hypothyroidism-in-a-sudanese-family-a-case-report
#12
Y Watanabe, E Sharwood, B Goodwin, M K Creech, H Y Hassan, M G Netea, M Jaeger, A Dumitrescu, S Refetoff, T Huynh, R E Weiss
BACKGROUND: Congenital hypothyroidism (CH) has an incidence of approximately 1:3000, but only 15% have mutations in the thyroid hormone synthesis pathways. Genetic analysis allows for the precise diagnosis. CASE PRESENTATION: A 3-week old girl presented with a large goiter, serum TSH > 100 mIU/L (reference range: 0.7-5.9 mIU/L); free T4  < 3.2 pmol/L (reference range: 8.7-16 pmol/L); thyroglobulin (TG) 101 μg/L. Thyroid Tc-99 m scan showed increased radiotracer uptake...
May 2, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/29718334/low-dose-levothyroxine-reduces-intrahepatic-lipid-content-in-patients-with-type-2-diabetes-mellitus-and-nafld
#13
Eveline Bruinstroop, Rinkoo Dalan, Cao Yang, Yong Mong Bee, Kurumbian Chandran, Li Wei Cho, Shui Boon Soh, Eng Kiong Teo, Sue-Anne Toh, Melvin Khee Shing Leow, Rohit A Sinha, Suresh Anand Sadananthan, Navin Michael, Heather Stapleton, Christopher Leung, Peter W Angus, Sheila K Patel, Louise M Burrell, Lim Su Chi, Sum Chee Fang, S Sendhil Velan, Paul M Yen
Context/Objective: Non-alcoholic fatty liver disease (NAFLD) is highly prevalent in patients with type 2 diabetes mellitus and associated with significant morbidity and mortality. Thyroid hormone (TH) increases β-oxidation of fatty acids and decreases intrahepatic lipid content (IHLC) in rodents with NAFLD. In this study we investigated the possibility of low intrahepatic TH concentration in NAFLD and studied the effect of TH treatment in humans. Design/Setting: We performed a phase 2b single arm study in six hospitals in Singapore to study whether TH reduced IHLC...
April 27, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29715192/does-initial-dosing-of-levothyroxine-in-infants-with-congenital-hypothyroidism-lead-to-frequent-dose-adjustments-secondary-to-iatrogenic-hyperthyroidism-on-follow-up
#14
Meghan Craven, Graeme R Frank
BACKGROUND: Congenital hypothyroidism (CH) is the most common preventable cause of intellectual disability. The recommended starting dose of levothyroxine (LT4) is between 10 and 15 μg/kg, an extremely wide range. We hypothesized that a sizable proportion of newborns treated for CH at the higher end of the dosage range become biochemically hyperthyroid at a follow-up visit. METHODS: This study is a retrospective chart review of infants with CH between 2002 and 2012...
May 1, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29709954/two-cases-of-transiently-elevated-serum-cea-levels-in-severe-hypothyroidism-without-goiter
#15
Tomonori Sekizaki, Chiho Yamamoto, Hiroshi Nomoto
Carcinoembryonic antigen (CEA), the level of which is known to increase in both patients with gastrointestinal cancers and those with non-neoplastic conditions, is one of the most widely-used tumor markers. Hypothyroidism is a common endocrinological disorder in which CEA levels can rise, and is sometimes overlooked as a diagnosis in the absence of typical symptoms or thyroid enlargement. We report the cases of two patients with non-goiterous severe hypothyroidism with markedly elevated CEA levels that effectively decreased with levothyroxine replacement therapy alone...
April 27, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29706030/preconception-management-of-thyroid-dysfunction
#16
Onyebuchi E Okosieme, Ishrat Khan, Peter N Taylor
Uncorrected thyroid dysfunction in pregnancy has well recognised deleterious effects on fetal and maternal health. The early gestation period is one of critical fetal vulnerability during which maternal thyroid dysfunction may have lasting repercussions. Accordingly, a pragmatic preconception strategy is key for ensuring optimal thyroid disease outcomes in pregnancy. Preconception planning in women with hypothyroidism should pre-empt and mirror the adaptive changes of the thyroid gland by careful levothyroxine dose adjustments to ensure adequate fetal thyroid hormone delivery in pregnancy...
April 29, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29701867/pregnancy-complications-associated-with-maternal-hypothyroidism-a-systematic-review
#17
Danielle Rosani Shinohara, Thais da Silva Santos, Hayalla Corrêa de Carvalho, Laíza Cristina Bahls Lopes, Luciene Setsuko Akimoto Günther, Sandra Mara Alessi Aristides, Jorge Juarez Vieira Teixeira, Izabel Galhardo Demarchi
Importance: Hypothyroidism is one of the most prevalent diseases in pregnancy, but there is no consensus about its management in pregnant women. Objective: In this systematic review, we evaluated the association between pregnancy complications and treated or untreated maternal hypothyroidism. Evidence Acquisition: PubMed and reference lists were searched for the Medical Subject Headings terms "pregnancy complications" and "hypothyroidism...
April 2018: Obstetrical & Gynecological Survey
https://www.readbyqxmd.com/read/29682241/drug-administration-adjustments-for-elderly-patients-with-dysphagia-a-case-report
#18
Patrícia de Carvalho Mastroianni, Marcela Forgerini
An elderly patient, aged 76 years, diagnosed with dysphagia, depression, hypothyroidism, Alzheimer's disease and mild cognitive deficit, was identified with sertraline and levothyroxine- drug-related problems. Medication Therapy Management (MTM) was used to adjust therapy to the patient's needs by macerating sertraline tablets and solubilizing them in 10-30 mL of orange juice. The patient was advised to take levothyroxine after fasting. Six months later, pharmaceutical follow-up identified an increase in the Mini-Mental State Exam score from 22 to 26 and a decrease in the Clinical Dementia Rating (CDR) scale score from 1...
January 2018: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29682133/autosomal-dominant-polycystic-kidney-disease-a-potential-mistake-in-the-interpretation-of-radioiodine-whole-body-scintigraphy
#19
Leila Kalhor
There are a few case reports of renal cysts demonstrating radioiodine uptake on scintigraphy. In this case, we report a 49-year-old man who had undergone total thyroidectomy and had been treated with radioiodine. After conventional levothyroxine withdrawal, the patient underwent thyroid remnant ablation by oral administration of 125 mci 131 I. Seven days later, post-therapy whole-body scan demonstrated thyroid remnant tissue and bilaterally multifocal radioiodine uptake in the upper abdomen. By ultrasonography and abdominal computed tomography scan, the iodine uptake was proven to be due to the accumulation of 131 I in bilateral polycystic kidney disease...
April 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29664512/short-stature-and-hypothyroidism-in-a-child-with-nail-patella-syndrome-a-case-report
#20
C Goecke, C Mellado, C García, H García
BACKGROUND: Nail-Patella syndrome (NPS) (OMIM: 161200) or hereditary onycho-osteodysplasia is an autosomal dominant disorder characterized by skeletal anomalies, nail dysplasia, renal and ocular abnor malities. The diagnosis is based on clinical and radiological findings and confirmed by the identification of a heterozygous pathogenic variant in the LMX1B gene. Management of these patients involves conti nuous follow-up and treatment ofthe orthopedical, ocular and renal problems that mayoccur...
February 2018: Revista Chilena de Pediatría
keyword
keyword
10828
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"