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https://www.readbyqxmd.com/read/29121201/high-prevalence-of-radiological-vertebral-fractures-in-women-on-tsh-suppressive-therapy-for-thyroid-carcinoma
#1
Gherardo Mazziotti, Anna Maria Formenti, Stefano Frara, Roberto Olivetti, Giuseppe Banfi, Maurizio Memo, Roberto Maroldi, Raffaele Giubbini, Andrea Giustina
Context: Bone loss and non-vertebral fractures have been reported in patients with differentiated thyroid carcinoma (DTC) undergoing TSH-suppressive therapy. Radiological vertebral fractures (VFs) are an early and clinically crucial marker of bone fragility but they have never been investigated so far in this specific clinical setting. Objective and design: In this cross-sectional study we evaluated the prevalence and determinants of radiological VFs in women under L-T4 therapy for DTC...
November 7, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29074613/the-incidence-of-congenital-hypothyroidism-ch-in-guangxi-china-and-the-predictors-of-permanent-and-transient-ch
#2
Chunyun Fu, Shiyu Luo, Yingfeng Li, Qifei Li, Shangyang She, Xuehua Hu, Mengting Li, Yue Zhang, Jiasun Su, Xuyun Hu, Yun Chen, Jin Wang, Bobo Xie, Shujie Zhang, Jingsi Luo, Xin Fan, Shaoke Chen, Yiping Shen
OBJECTIVE: To investigate the incidence of CH in Guangxi, China, and to analyze the predictors that might allow for an early differentiation between permanent (P) and transient (T) CH. DESIGN AND METHODS: Blood samples were collected on filter paper between 3-7 days after birth, TSH level was measured by time-resolved fluorescence assay. Individuals with increased TSH levels detected by newborn screening were recalled for further evaluation by electrochemiluminescence assay...
October 26, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29061604/effect-of-levothyroxine-on-the-progression-of-carotid-intima-media-thickness-in-subclinical-hypothyroidism-patients-a-meta-analysis
#3
Tong Zhao, Baomin Chen, Yingying Zhou, Xinyi Wang, Yuanyuan Zhang, Haoyu Wang, Zhongyan Shan
BACKGROUND: Subclinical hypothyroidism (SCH) has been associated with increased carotid intima-media thickness (C-IMT) in recent studies, but the effects of levothyroxine (L-T4) therapy on C-IMT in SCH patients are still controversial. AIM: To evaluate the effect of L-T4 therapy on endothelial function as determined by C-IMT in patients with SCH. METHODS: BeforeJuly 2016, we searched the PubMed, Embase, Cochrane Library and Google Scholar databases, selecting published randomised controlled trials (RCTs) and self-controlled trials for the meta-analysis...
October 22, 2017: BMJ Open
https://www.readbyqxmd.com/read/29033894/serum-thyrotropin-and-phase-of-the-menstrual-cycle
#4
Salvatore Benvenga, Flavia Di Bari, Roberta Granese, Alessandro Antonelli
About one-fifth of patients treated with levothyroxine have serum thyrotropin (TSH) above target concentrations but, in approximately 15% of them, the cause of this TSH insufficient normalization remains unknown. We report the cases of two regularly menstruating women with known thyroid disease who had TSH levels consistently >3 mU/L (and sometimes above target levels) during mid-cycle, but consistently lower serum levels during the follicular and luteal phases of menstrual cycle. A major TSH release by the thyrotrophs in response to high circulating levels of estradiol (E2) at mid-cycle may increase levels of TSH compared to other phases of the cycle...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29026274/a-case-of-an-infant-with-congenital-combined-pituitary-hormone-deficiency-and-normalized-liver-histology-of-infantile-cholestasis-after-hormone-replacement-therapy
#5
Keisuke Wada, Hironori Kobayashi, Aisa Moriyama, Yasuhiro Haneda, Yuichi Mushimoto, Yuki Hasegawa, Kazumichi Onigata, Koji Kumori, Noriyoshi Ishikawa, Riruke Maruyama, Tsuyoshi Sogo, Lynne Murphy, Takeshi Taketani
Congenital combined pituitary hormone deficiency (CPHD) may present with cholestasis in the neonate or during early infancy. However, its precise mechanism is unknown. A 3-mo-old boy presented with cryptorchidism and hypoplastic scrotum after birth. Neonatal jaundice was noted but temporarily improved with phototherapy. Jaundice recurred at 2 mo of age. Elevated direct bilirubin (D-Bil) and liver dysfunction were found but cholangiography showed no signs of biliary atresia (BA). Liver biopsy findings showed giant cell formation of hepatocytes with hypoplastic bile ducts...
2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/28979239/severe-hypothyroidism-due-to-the-loss-of-therapeutic-efficacy-of-l-thyroxine-in-a-patient-with-esophageal-complication-associated-with-systemic-sclerosis
#6
Antonio Lobasso, Liliana Nappi, Letizia Barbieri, Carmela Peirce, Serena Ippolito, Debora Arpaia, Francesca Wanda Rossi, Amato de Paulis, Bernadette Biondi
BACKGROUND: Thyroid function abnormalities and thyroid autoantibodies have been frequently described in patients with systemic autoimmune diseases as systemic sclerosis (SSc). Serum TSH levels are higher in SSc patients with more severe skin diseases and a worse modified Rodnan skin score. Asymptomatic esophageal involvement due to SSc has never been described as a cause of severe hypothyroidism due to l-thyroxine (l-T4) malabsorption in patients with Hashimoto's thyroiditis (HT) and SSc...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28898885/pilot-neonatal-screening-program-for-central-congenital-hypothyroidism-evidence-of-significant-detection
#7
Débora Braslavsky, Maria Virginia Méndez, Laura Prieto, Ana Keselman, Rosa Enacan, Laura Gruñeiro-Papendieck, Nicolas Jullien, Alexandru Savenau, Rachel Reynaud, Thierry Brue, Ignacio Bergadá, Ana Chiesa
BACKGROUND/AIM: Congenital hypothyroidism (CH) is a heterogeneous entity. Neonatal screening programs based on thyrotropin (TSH) determination allow primary CH diagnosis but miss central CH (CCH). CCH causes morbidity, alerts to other pituitary deficiencies, and is more prevalent than previously thought. We aimed at developing a pilot neonatal screening program for CCH detection. PATIENTS AND METHODS: A prospective 2-year pilot neonatal screening study based on simultaneous dried blood specimen TSH and thyroxine (T4) measurements was implemented in term newborns aged 2-7 days...
2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28846851/the-regulation-of-pituitary-thyroid-abnormalities-by-peripheral-administration-of-levothyroxine-increased-bdnf-and-reelin-proteins-expression-in-an-animal-model-of-alzheimer-s-disease
#8
Sahreh Shabani, Yaghoub Farbood, Seyyed Ali Mard, Alireza Sarkaki, Akram Ahangarpour, Layasadat Khorsandi
Alzheimer's disease (AD) is associated with decreased serum levels of thyroid hormones (THs), increased levels of thyroid-stimulating hormone (TSH) and decreased in protein expression of brain-derived neurotrophic factor (BDNF) and reelin in the hippocampus. In this study, we have evaluated the effect of subcutaneously (SC) administration of levothyroxine (L-T4) on levels of THs and TSH as well as protein expression of BDNF and reelin in AD rats. To make an animal model of AD, Beta-amyloid (Aβ) plus ibotenic acid were infused intrahippocampally (IH), and rats were treated with L-T4 and/or saline for 10 days...
August 28, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28771438/fetal-goitrous-hypothyroidism-treated-by-intra-amniotic-levothyroxine-administration-case-report-and-review-of-the-literature
#9
Mami Kobayashi, Hideaki Yagasaki, Tomohiro Saito, Atsushi Nemoto, Atsushi Naito, Kanji Sugita
BACKGROUND: Fetal goitrous hypothyroidism is mainly caused by maternal treatment of Graves' disease. Fetal goiter sometimes compresses the trachea and esophagus and may cause polyhydramnios, preterm labor, complications of labor and delivery, and neonatal respiratory disorder. CASE PRESENTATION: We report a case of fetal goitrous hypothyroidism in which the mother had Graves' disease, which was treated with propylthiouracil. Intra-amniotic levothyroxine (L-T4) administration was performed, and the fetal goiter decreased in size...
August 28, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28767416/effect-of-subclinical-hypothyroidism-on-the-skeletal-system-and-improvement-with-short-term-thyroxine-therapy
#10
Cuixia Gao, Yu Wang, Tingting Li, Jing Huang, Limin Tian
The purpose of the study was to observe changes in the skeletal system of rats with subclinical hypothyroidism (SCH) and to determine whether L-thyroxine (L-T4) administration suppresses those changes. Sixty male Wistar rats were randomly divided into control, SCH, and SCH+T4 groups. SCH was induced in rats by administration of methimazole (MMI), and rats in the SCH+T4 group were treated with L-T4 after 45 days of MMI administration. The SCH group had higher thyroid-stimulating hormone (TSH) level than the control and SCH+T4 groups...
July 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/28754607/reversal-of-nocturnal-non-dipping-of-blood-pressure-after-levothyroxine-therapy-in-patients-with-subclinical-hypothyroidism
#11
Mannmath Nath, Balram Gupta, Madhukar Rai, Surya K Singh
AIMS: To study the loss of diurnal variation in blood pressure in normotensive patients with Subclinical/overt hypothyroidism and effect of Levothyroxine (L-T4) treatment. MATERIALS AND METHODS: In this interventional study Eighty patients between 17- 50 years with newly detected OH and SCH (74 women and 6 men) and nine euthyroid subjects (all men) with blood pressure <140/90 were recruited. All patients underwent 24h ambulatory blood pressure monitoring (ABPM) using ABPM machine before and after treatment with L-T4...
July 20, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28740481/refractory-hypothyroidism-due-to-improper-storage-of-levothyroxine-tablets
#12
Salvatore Benvenga, Giampaolo Papi, Alessandro Antonelli
CONTEXT: A not negligible part of hypothyroid patients on levothyroxine therapy do not normalize serum thyrotropin (TSH) concentrations. "Refractory hypothyroidism," i.e., a condition characterized by persistently abnormal serum TSH levels despite adequate titration of l-T4 substitution therapy, requires biochemical and instrumental investigation, but no definite etiology is found in up to 15% of cases. OBJECTIVE: To report patients presenting with refractory hypothyroidism with proven improper storage of levothyroxine tablets...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28697824/-analysis-of-treatment-efficacy-for-congenital-hypothyroidism-in-some-regions-of-yunnan-province-china
#13
Jing-Hui Yang, Jing-Hui Zhang, Yin-Hong Zhang, Xiao-Zhi Xu, Hong Chen, Yuan Li, Yan Jiang, Zheng Wang, Bao-Sheng Zhu, Li Li
OBJECTIVE: To observe the effects of initial doses and treatment timing of levothyroxine (L-T4) on the clinical efficacy in children with congenital hypothyroidism (CH). METHODS: This study included 98 children who had an abnormal level of thyroid stimulating hormone (TSH) in neonatal screening in four regions of Yunnan Province and who finally had a confirmed diagnosis of CH. They received treatment with L-T4 and were divided into standard dose group (10-15 μg/kg per day) and low dose group (<10 μg/kg per day) by the therapeutic dose of L-T4...
July 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28690988/intellectual-development-in-preschool-children-with-early-treated-congenital-hypothyroidism
#14
Min Kyoung Seo, Jong Seo Yoon, Chul Hwan So, Hae Sang Lee, Jin Soon Hwang
PURPOSE: Delayed treatment of congenital hypothyroidism (CH) is a common cause of mental retardation. The aim of the present study was to evaluate intellectual outcomes in preschool children with treated CH. METHODS: We retrospectively reviewed the clinical records of 43 children (age range: 13 to 60 days of life; 22 girls and 21 boys) diagnosed with CH. Children aged 5 to 7 years were examined using the Korean Wechsler Intelligence Scale for Children or the Korean Wechsler Preschool and Primary Scale of Intelligence...
June 2017: Annals of Pediatric Endocrinology & Metabolism
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
#15
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/28572820/tsh-variability-of-patients-affected-by-differentiated-thyroid-cancer-treated-with-levothyroxine-liquid-solution-or-tablet-form
#16
Carlo Cappelli, Ilenia Pirola, Elena Gandossi, Claudio Casella, Davide Lombardi, Barbara Agosti, Fiorella Marini, Andrea Delbarba, Maurizio Castellano
BACKGROUND: Recent guidelines from the American Thyroid Association (ATA) indicate that, in many patients affected by differentiated thyroid cancer (DTC), the serum TSH should be maintained between 0.1 and 0.5 mU/L. The purpose of this study was to evaluate the TSH variability of patients affected by DTC treated with liquid L-T4 formulation or in tablet form. PATIENTS AND METHODS: Patients were eligible if (a) they were submitted to a total thyroidectomy and (131)I remnant ablation for DTC in our institution and (b) they were classified low-risk patients according to ATA guidelines 2009...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28566447/management-of-endocrine-disease-l-thyroxine-replacement-therapy-in-the-frail-elderly-a-challenge-in-clinical-practice
#17
REVIEW
R M Ruggeri, F Trimarchi, B Biondi
The number of elderly people, mostly aged over 85 years (the 'oldest old'), is increasing worldwide. As a consequence, accompanying morbidity and disability have been increasing, and frailty, defined as an age-related condition of decline of physiological reserves and vulnerability, represents an emerging problem. Caring for older frail people may represent a challenge, since the elderly differ significantly from younger adults in terms of comorbidity, polypharmacy, pharmacokinetics and greater vulnerability to adverse drug reactions...
October 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28561265/mild-tsh-resistance-clinical-and-hormonal-features-in-childhood-and-adulthood
#18
Maria Cristina Vigone, Marianna Di Frenna, Fabiana Guizzardi, Giulia Gelmini, Tiziana de Filippis, Stefano Mora, Silvana Caiulo, Micol Sonnino, Marco Bonomi, Luca Persani, Giovanna Weber
OBJECTIVE: Mutations in TSH receptor (TSHR) are associated with TSH resistance, a genetic defect characterized by a heterogeneous phenotype ranging from severe hypothyroidism to subclinical hypothyroidism (SCH). We assessed the clinical and hormonal pattern of TSHR variants in a series of pediatric patients, and the long-term outcome of growth, biochemical measurements of metabolism, and neuropsychological functions in TSHR mutations carriers. DESIGN: Observational, retrospective study...
May 31, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28468766/regorafenib-induced-hypothyroidism-and-cancer-related-fatigue-is-there-a-potential-link
#19
Fabiana Pani, Matteo Massidda, Valeria Pusceddu, Marco Puzzoni, Elena Massa, Clelia Madeddu, Mario Scartozzi, Stefano Mariotti
OBJECTIVE: Thyroid dysfunction has been reported during Regorafenib (Reg) administration, but no detailed study is presently available. DESIGN: Prospective, observational cohort study. Patients with documented metastatic colorectal cancer and progression of disease during or within 3 months after the last standard therapy, with no evidence and history of previous thyroid disease were enrolled. METHODS: Twenty-five consecutive patients were evaluated before and 8-50 weeks after initiating Reg therapy by monthly clinical, ultrasound and laboratory (thyrotropin (TSH), free thyroxine (fT4), antithyroglobulin (TgAb) and antithyroid peroxidase (TPOAb)) evaluation...
July 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28460140/thyroid-function-variation-in-the-normal-range-energy-expenditure-and-body-composition-in-l-t4-treated-subjects
#20
Mary H Samuels, Irina Kolobova, Megan Antosik, Meike Niederhausen, Jonathan Q Purnell, Kathryn G Schuff
Purpose: It is not clear whether upper limits of the thyrotropin (TSH) reference range should be lowered. This debate can be better informed by investigation of whether variations in thyroid function within the reference range have clinical effects. Thyroid hormone plays a critical role in determining energy expenditure, body mass, and body composition, and therefore clinically relevant variations in these parameters may occur across the normal range of thyroid function. Methods: This was a cross-sectional study of 140 otherwise healthy hypothyroid subjects receiving chronic replacement therapy with levothyroxine (L-T4) who had TSH levels across the full span of the laboratory reference range (0...
July 1, 2017: Journal of Clinical Endocrinology and Metabolism
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