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Hypothyroidism

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https://www.readbyqxmd.com/read/29666563/do-tsh-ft3-and-ft4-impact-bat-visualization-of-clinical-fdg-pet-ct-images
#1
Ryuichi Nishii, Shigeki Nagamachi, Youichi Mizutani, Tamasa Terada, Syogo Kiyohara, Hideyuki Wakamatsu, Seigo Fujita, Tatsuya Higashi, Keiichiro Yoshinaga, Tsuneo Saga, Toshinori Hirai
Objective: We retrospectively analyzed activated BAT visualization on FDG-PET/CT in patients with various conditions and TH levels to clarify the relationships between visualization of BAT on FDG-PET/CT and the effect of TH. Methods: Patients who underwent clinical FDG-PET/CT were reviewed and we categorized patients into 5 groups: (i) thyroid hormone withdrawal (THW) group; (ii) recombinant human thyrotropin (rhTSH) group; (iii) hypothyroidism group; (iv) hyperthyroidism group; and (v) BAT group...
2018: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29665652/the-protective-effect-of-p7c3-against-dna-and-neuron-damage-in-rat-pups-with-congenital-hypothyroidism
#2
Halef Okan Dogan, Mehmet Eray Alcigir
Congenital hypothyroidism (CH) is defined as congenital thyroid hormone deficiency. The aim of this study was to examine the DNA and neuron damage in rat pups with CH and to evaluate the beneficial effects of 3.6-Dibromo-α-[(phenylamino) methyl]-9H-carbazole-9-ethanol (P7C3). Rat pups were assigned to four groups as Group 1: CH, Group 2: CH treated with P7C3, Group 3: CH treated with P7C3 and L-thyroxine, and Group 4: control group. Plasma 8-(OH)DG and neuron-specific enolase (NSE) concentrations were determined in all groups...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29665650/selenium-nanoparticles-prevents-lead-acetate-induced-hypothyroidism-and-oxidative-damage-of-thyroid-tissues-in-male-rats-through-modulation-of-selenoenzymes-and-suppression-of-mir-224
#3
Hebatallah Husseini Atteia, Manar Hamed Arafa, Kousalya Prabahar
Selenium nanoparticles (Se-NPs) are customizable drug delivery vehicles that show good bioavailability, higher efficacy and lower toxicity than ordinary Se. Pre-treatment of male rats with these NPs has been recently shown to exert a protective effect against chromium-induced thyroid dysfunction. This study, therefore, aimed to investigate and characterize the potential protective mechanism of Se-NPs against lead (Pb) acetate-induced thyrotoxicity. We found that prophylactic and concurrent treatment of Pb acetate-exposed rats with Nano-Se (0...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29664655/short-term-assessment-of-hsct-effects-on-the-hypothalamus-pituitary-axis-in-pediatric-thalassemic-patients
#4
Amir Ali Hamidieh, Fariba Mohseni, Maryam Behfar, Zohreh Hamidi, Kamran Alimoghaddam, Mohamad Pajouhi, Bagher Larijani, Mohammad-Reza Mohajeri-Tehrani, Ardeshir Ghavamzadeh
BACKGROUND: Beta thalassemia major (BTM) and its treatment by hematopoietic stem cell transplantation (HSCT) may have deleterious effects on the endocrine systems. We assessed endocrine complications of HSCT in pediatric patients for 3 months. METHODS: In 20 (6 female) pediatric major thalassemic patients (mean age of 10.8 ± 3.9 years old), prolactin, luteinizing hormone (LH), follicle-stimulating hormone (FSH), T4, T3, thyroid-stimulating hormone (TSH), IGF-1, testosterone (in males) or estradiol (in females) were measured as a batch at the Endocrinology and Metabolism Research Center (EMRC) of Tehran University of Medical Sciences (TUMS) laboratories before HSCT and 1 and 3 months afterwards...
February 1, 2018: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/29664512/short-stature-and-hypothyroidism-in-a-child-with-nail-patella-syndrome-a-case-report
#5
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
https://www.readbyqxmd.com/read/29664178/hypothyroidism-impairs-somatovisceral-reflexes-involved-in-micturition-of-female-rabbits
#6
Octavio Sánchez-García, Rhode López-Juárez, Julia Rodríguez-Castelán, Dora L Corona-Quintanilla, Margarita Martínez-Gómez, Estela Cuevas-Romero, Francisco Castelán
AIMS: To determine the impact of hypothyroidism on the bladder and urethral functions as well as in the activation of the pubococcygeous (Pcm) and bulbospongiosus (Bsm) during micturition. METHODS: Age-matched control and methimazole-induced hypothyroid female rabbits were used to simultaneously record cystometrograms, urethral pressure, and the reflex activation of Pcm and Bsm during the induced micturition. Urodynamic and urethral variables were measured. Activation or no activation of the Pcm and Bsm during the storage and voiding phases of micturition were categorized as 1 or 0...
April 17, 2018: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29663535/hypothyroidism-and-hyperthyroidism-change-ectoenzyme-activity-in-rat-platelets
#7
Jucimara Baldissarelli, Adriana Santi, Roberta Schmatz, Caroline C Martins, Daniela Zanini, Karine P Reichert, Gustavo R Thomé, Taís V Palma, Pauline da Costa, Vera M Morsch, Maria R C Schetinger
The purinergic system has an important role in the regulation of vascular functions. The interference of thyroid hormones in this system and in cardiovascular events has been studied in recent years. However, the mechanisms involved in vascular, purinergic, and oxidative changes in thyroid disorders are not completely understood. Therefore, the present study aimed to assess purinergic enzyme activity in platelets from rats with hypothyroidism and hyperthyroidism induced, respectively, by continuous exposure to methimazole (MMI) at 20 mg/100 mL or L-thyroxine at 1...
April 16, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29662962/the-relation-of-maternal-hypothyroidism-and-hypothyroxinemia-during-pregnancy-on-preterm-birth-an-updated-systematic-review-and-meta-analysis
#8
REVIEW
Marzieh Parizad Nasirkandy, Gholamreza Badfar, Masoumeh Shohani, Shoboo Rahmati, Mohammad Hossein YektaKooshali, Shamsi Abbasalizadeh, Ali Soleymani, Milad Azami
Background: The clinical consequences of hypothyroidism and hypothyroxinemia during pregnancy such as preterm birth are not still clear. Objective: The aim of this meta-analysis was to estimate the relation of clinical and subclinical hypothyroidism and hypothyroxinemia during pregnancy and preterm birth. Materials and Methods: In this meta-analysis, Preferred Reporting Items for Systematic review and Meta-Analysis were utilized. Searching the cohort studies were done by two researchers independently without any restrictions on Scopus, PubMed, Science Direct, Embase, Web of Science, CINAHL, Cochrane, EBSCO and Google Scholar databases up to 2017...
September 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29662269/two-siblings-with-congenital-central-hypothyroidism-caused-by-a-novel-mutation-in-the-igsf1-gene
#9
Makiko Oguma, Mizuki Kobayashi, Masayo Yamazaki, Koji Yokoyama, Shuntaro Morikawa, Takeshi Yamaguchi, Takanori Yamagata, Toshihiro Tajima
Genetic defects in the immunoglobulin superfamily member 1(IGSF1) protein are the cause of congenital central hypothyroidism (C-CH). Here we report two Japanese siblings with C-CH due to a novel IGSF1 mutation. The youngest brother showed a failure to thrive, hypothermia, and neonatal icterus six days after birth. Further endocrine evaluations led to the diagnosis of C-CH. In addition, PRL deficiency was later detected. In contrast, the elder brother did not show symptoms of severe hypothyroidism during the neonatal period, but he had been followed up by doctors due to psychomotor developmental delays since the age of 1 yr...
2018: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/29660914/shearwave%C3%A2-elastography-for-evaluation-of-the-elasticity-of-hashimoto-s-thyroiditis
#10
Haifang Liu, Yuping Zhu, Jie Jiao, Jia Yuan, Tianning Pu, Qiang Yong
The aim of this study was to assess the elasticity of Hashimoto's thyroiditis in the different processes via supersonic ShearWave™ Elastography (SWE™). Quantitative information is delivered as Young's modulus value expressed in kilo-Pascal (kPa). 30 healthy female and 30 healthy male individuals aging at 40±20 y had undergone conventional ultrasonography and SWE to determine the influence of gender on elasticity of thyroid. Also 60 female and 60 male patients (mean age, 40±20 y) with Hashimoto's thyroiditis in different processes underwent conventional ultrasonography and SWE to determine the elasticity of thyroid in Hashimoto's thyroiditis...
April 13, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29658834/alterations-in-thyroid-hormone-levels-following-growth-hormone-replacement-exert-complex-biological-effects
#11
Nigel Glynn, Helena Kenny, Tarik Salim, David J Halsall, Diarmuid Smith, Tommy Kyaw Tun, John H McDermott, William Tormey, Christopher J Thompson, Brendan McAdam, Donal O' Gorman, Amar Agha
OBJECTIVE: Alterations in the thyroid axis are frequently observed following growth hormone (GH) replacement, but uncertainty exists regarding their clinical significance. We aimed to compare fluctuations in circulating thyroid hormone levels, induced by GH, to changes in sensitive biological markers of thyroid hormone action. METHODS: This was a prospective observational clinical study. Twenty hypopituitary men were studied before and after GH replacement. Serum thyroid-stimulating hormone (TSH), thyroid hormones, and insulin-like growth factor 1 were measured...
April 2018: Endocrine Practice
https://www.readbyqxmd.com/read/29658805/subclinical-hypothyroidism-is-not-a-risk-factor-for-polycystic-ovary-syndrome-in-obese-women-of-reproductive-age
#12
Bingjie Zhang, Jing Wang, Shanmei Shen, Jiayi Liu, Jie Sun, Tianwei Gu, Dalong Zhu, Yan Bi
Obese women are at high risk for polycystic ovary syndrome (PCOS). Subclinical hypothyroidism (SCH) has been associated with weight gain, insulin resistance and impaired fertility, which are also factors involved in PCOS. However, there is limited information regarding the influence of SCH on the presence of PCOS. In order to determine whether SCH increases the prevalence of PCOS, we performed a cross-sectional study in a cohort of reproductive-aged obese women. All subjects underwent anthropometric evaluation, laboratory tests and ultrasound examination...
April 16, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29656705/suppressive-effects-of-neonatal-bisphenol-a-on-the-neuroendocrine-system
#13
R G Ahmed, G H Walaa, F S Asmaa
The aim of this study was to assess the effects of neonatal bisphenol A (BPA) administration on neuroendocrine features (the thyroid-brain axis). BPA (20 or 40 µg/kg) was orally administered to juvenile male albino rats ( Rattus norvegicus) from postnatal days (PNDs) 15 to 30. Both doses resulted in lower serum thyroxine (T4), triiodothyronine (T3), and growth hormone levels and higher thyrotropin level than the control levels at PND 30. In the neonatal cerebellum and cerebrum, vacuolation, pyknosis, edema, degenerative changes, and reductions in the size and number of the cells were observed in both treated groups...
January 1, 2018: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/29655802/mars-variant-associated-with-both-recessive-interstitial-lung-and-liver-disease-and-dominant-charcot-marie-tooth-disease
#14
Jonathan Rips, Rebecca Meyer-Schuman, Oded Breuer, Reuven Tsabari, Avraham Shaag, Shoshana Revel-Vilk, Shimon Reif, Orly Elpeleg, Anthony Antonellis, Tamar Harel
Aminoacyl-tRNA synthetases (ARSs) are ubiquitously expressed enzymes responsible for charging tRNA with cognate amino acids during protein translation. Non-canonical functions are increasingly recognized, and include transcription and translation control and extracellular signaling. Monoallelic mutations in genes encoding several ARSs have been identified in axonal Charcot-Marie-Tooth (CMT2) disease, whereas biallelic mutations in ARS loci have been associated with multi-tissue syndromes, variably involving the central nervous system, lung, and liver...
April 12, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29652955/-neurodevelopmental-assessment-of-patients-with-congenital-hypothyroidism
#15
Alicia Núñez, Paula Bedregal, Carlos Becerra, Francisca Grob L
Congenital hypothyroidism (CH) is the most common cause of preventable cognitive disability worldwide. Generally, it is produced by an alteration in the embryogenesis of the thyroid gland or by an alteration in the synthesis of thyroid hormones, which determine that affected patients have low or absent thyroid hormone concentrations. The importance of this fact is that brain development during the first three years of life is highly dependent on thyroid hormones. Prior to the implementation of national neonatal screening programs around the world, 8 to 27% of children with CH had an IQ lower than 70...
December 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/29652599/risk-factors-for-new-hypothyroidism-during-tyrosine-kinase-inhibitor-therapy-in-advanced-nonthyroidal-cancer-patients
#16
Melissa G Lechner, Chirag M Vyas, Ole-Petter R Hamnvik, Erik K Alexander, P Reed Larsen, Toni K Choueiri, Trevor E Angell
BACKGROUND: Thyroid dysfunction during tyrosine kinase inhibitor (TKI) cancer treatment is common, but predisposing risk factors have not been determined. Recommendations for monitoring patients treated with one or multiple TKI and in conjunction with other relevant cancer therapies could be improved. The study objective was to assess the risk factors for new thyroid dysfunction in TKI-treated previously euthyroid cancer patients. METHODS: A retrospective cohort study of patients with advanced nonthyroidal cancer treated with TKI from 2000 to 2017, having available thyroid function tests showing initial euthyroid status, excluding patients with preexisting thyroid disease or lack of follow-up thyroid function tests...
April 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29652597/hypothyroidism-during-tyrosine-kinase-inhibitor-therapy-is-associated-with-longer-survival-in-patients-with-advanced-nonthyroidal-cancers
#17
Melissa G Lechner, Chirag M Vyas, Ole-Petter R Hamnvik, Erik K Alexander, P Reed Larsen, Toni K Choueiri, Trevor E Angell
BACKGROUND: Tyrosine kinase inhibitor (TKI)-induced thyroid dysfunction is recognized as a common adverse effect of treatment, but the importance of incident hypothyroidism during TKI therapy remains unclear. This study analyzed the prognostic significance of hypothyroidism during TKI therapy in cancer patients. METHODS: This was a retrospective cohort study of adult patients with advanced nonthyroidal cancer treated with TKI and available thyroid function testing at three affiliated academic hospitals from 2000 to 2017...
April 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29652187/blood-transfusion-during-total-ankle-arthroplasty-is-associated-with-increased-in-hospital-complications-and-costs
#18
Michael A Ewing, Samuel R Huntley, Dustin K Baker, Kenneth S Smith, Parke W Hudson, Gerald McGwin, Brent A Ponce, Michael D Johnson
INTRODUCTION: Total ankle arthroplasty (TAA) is an increasingly used, effective treatment for end-stage ankle arthritis. Although numerous studies have associated blood transfusion with complications following hip and knee arthroplasty, its effects following TAA are largely unknown. This study uses data from a large, nationally representative database to estimate the association between blood transfusion and inpatient complications and hospital costs following TAA. METHODS: Using the Nationwide Inpatient Sample (NIS) database from 2004 to 2014, 25 412 patients who underwent TAA were identified, with 286 (1...
April 1, 2018: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29651216/linear-analysis-of-autonomic-activity-and-its-correlation-with-creatine-kinase-mb-in-overt-thyroid-dysfunctions
#19
Manisha Mavai, Yogendra Raj Singh, R C Gupta, Sandeep K Mathur, Bharti Bhandari
Autonomic activity may be deranged in thyroid dysfunctions and may lead to cardiovascular morbidity and mortality. Myopathy is a common manifestation in thyroid disorders and may be associated with raised serum creatine kinase (CK). We hypothesized that cardiovascular abnormality in thyroid dysfunction may manifest as raised CK-MB. This study was designed to investigate the correlation of CK and its isoform CK-MB with thyroid profile and linear parameters of heart rate variability (HRV). The study was conducted on 35 hypothyroid and hyperthyroid patients each, and 25 age-matched healthy controls...
April 2018: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/29651214/homeostatic-model-assessment-insulin-resistance-homa-ir-2-in-mild-subclinical-hypothyroid-subjects
#20
Shreejita Sengupta, T Jaseem, Jayachidambaram Ambalavanan, Anupama Hegde
Despite various studies with conflicting results, the effect of thyroid hormones on lipids and insulin levels in dysthyroidism is of great interest. This case control study was aimed to perceive the existence of IR and dyslipidemia in mild subclinical hypothyroid subjects (TSH ≤ 9.9 µIU/ml) as compared to their age and gender matched euthyroid controls. Basic demographic information like height, weight was recorded. Serum samples of all the subjects were assayed for thyroid profile, lipid profile, blood glucose, HbA1C and insulin...
April 2018: Indian Journal of Clinical Biochemistry: IJCB
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