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https://www.readbyqxmd.com/read/28527122/effects-of-cigarette-smoke-exposure-during-suckling-on-food-intake-fat-mass-hormones-and-biochemical-profile-of-young-and-adult-female-rats
#1
Patricia Cristina Lisboa, Patricia Novaes Soares, Thamara Cherem Peixoto, Janaine Cavalcanti Carvalho, Camila Calvino, Vanessa Silva Tavares Rodrigues, Dayse Nascimento Bernardino, Viviane Younes-Rapozo, Alex Christian Manhães, Elaine de Oliveira, Egberto Gaspar de Moura
PURPOSE: Children from smoking mothers have a higher risk of developing obesity and associated comorbidities later in life. Different experimental models have been used to assess the mechanisms involved with this increased risk. Using a rat model of neonatal nicotine exposure via implantation of osmotic minipumps in lactating dams, we have previously shown marked sexual dimorphisms regarding metabolic and endocrine outcomes in the adult progeny. Considering that more than four thousand substances are found in tobacco smoke besides nicotine, we then studied a rat model of neonatal tobacco smoke exposure: adult male offspring had hyperphagia, obesity, hyperglycemia, hypertriglyceridemia, secondary hyperthyroidism and lower adrenal hormones...
May 19, 2017: Endocrine
https://www.readbyqxmd.com/read/28521834/incidence-of-total-hip-or-knee-replacement-due-to-osteoarthritis-in-relation-to-thyroid-function-a-prospective-cohort-study-the-nord-tr%C3%A3-ndelag-health-study
#2
Alf Inge Hellevik, Marianne Bakke Johnsen, Arnulf Langhammer, Anne Marie Fenstad, Ove Furnes, Kjersti Storheim, John Anker Zwart, Gunnar Flugsrud, Lars Nordsletten
BACKGROUND: To study whether thyroid function was associated with risk of hip or knee replacement due to primary osteoarthritis. METHODS: In a prospective cohort study, data from the second and third survey of the Nord-Trøndelag Health Study were linked to the Norwegian Arthroplasty Register in order to identify total hip or knee replacement as a result of primary osteoarthritis. RESULTS: Among 37 891 participants without previously known thyroid disease we recorded 978 total hip replacements (THRs) and 538 total knee replacements (TKRs) during a median follow-up time of 15...
May 18, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28521160/evidence-for-bisphenol-a-induced-disruption-of-maternal-thyroid-homeostasis-in-the-pregnant-ewe-at-low-level-representative-of-human-exposure
#3
Davy Guignard, Véronique Gayrard, Marlène Z Lacroix, Sylvie Puel, Nicole Picard-Hagen, Catherine Viguié
Many uncertainties remain regarding the potential of bisphenol A (BPA) as a thyroid disruptor in mammals and the relevance of experimental data to humans. The relevance of the exposure schemes used in experimental in vivo studies is also a major source of uncertainty when analysing the risk of BPA exposure for human health. In this context, the goals of our study, conducted in an ovine model relevant to human gestation and thyroid physiologies, were to: 1) determine the equivalence of subcutaneous and dietary exposures and 2) determine if environmentally relevant doses of BPA can alter gestational and newborn thyroid functions...
May 5, 2017: Chemosphere
https://www.readbyqxmd.com/read/28520952/defining-optimal-health-range-for-thyroid-function-based-on-the-risk-of-cardiovascular-disease
#4
L Chaker, T I M Korevaar, D Rizopoulos, T-H Collet, H Völzke, A Hofman, N Rodondi, A R Cappola, R P Peeters, O H Franco
Context: Reference ranges of thyroid stimulating hormone (TSH) and free thyroxine (FT4) are defined by their distribution in apparently healthy populations, (2.5th and 97.5th percentiles) irrespective of disease risk and used as cut-offs for defining and clinically managing thyroid dysfunction. Objective: To provide a proof of concept in defining thyroid function optimal health ranges based on cardiovascular disease (CVD) mortality risk. Design and Participants: 9,233 participants from the Rotterdam Study (mean age 65...
May 17, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28515031/phenotypic-variability-in-a-family-with-acrodysostosis-type-2-caused-by-a-novel-pde4d-mutation-affecting-the-serine-target-of-pka-phosphorylation
#5
Julia Hoppmann, Julia Gesing, Caroline Silve, Chrystel Leroy, Astrid Bertsche, Franz Wolfgang Hirsch, Wieland Kiess, Roland Pfäffle, Volker Schuster
BACKGROUND: Acrodysostosis is a very rare congenital multisystem condition characterized by skeletal dysplasia with severe brachydactyly, midfacial hypoplasia, and short stature, varying degrees of intellectual disability, and possible resistance to multiple G protein-coupled receptor signalling hormones. Two distinct subtypes are differentiated: acrodysostosis type 1 resulting from defects in PRKAR1A and acrodysostosis type 2 caused by mutations in PDE4D. Most cases are sporadic. OBJECTIVE: We report on a rare multigenerational familial case of acrodysostosis type 2 due to a novel autosomal dominantly inherited PDE4D mutation...
May 17, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28515030/congenital-central-hypothyroidism-caused-by-a-novel-tsh-beta-subunit-gene-mutation-c-94g-a-in-two-siblings
#6
Bayram Özhan, Özlem Boz Anlaş, Bilge Sarıtepe, Burcu Albuz, Nur Gündüz Semerci
Congenital central hypothyroidism (C-CH) is a very rare disease. Alterations in genes included in pituitary development, mutations of the immunoglobulin superfamily member 1 (IGSF1) and transducin β-like protein 1(TBL1X ) can result in C-CH with multiple pituitary hormone deficiencies. However, mutations of the thyrotropin-releasing hormone receptor or TSH-beta (TSHB) gene are responsible for isolated congenital central hypothyroidism. In this paper, we present 2 patients from the same Turkish family with a novel mutation of TSHB...
May 17, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28513668/computational-analysis-of-site-differences-in-selective-aliphatic-c-h-hydroxylation-by-nonheme-iron-oxo-complexes
#7
Jian Wang, Yuan-Yuan Zhao, Po-Heng Lee
Selective C-H hydroxylation by nonheme iron complexes offers a promising method in the field of organic synthesis. Aliphatic C-H bond oxidation reactions of pivalate (R) catalyzed by [Fe(S,S-PDP)(CH3CN)2](2+) (CAT1) were examined using the density functional theory. Our calculations of the CH3CN solvent agree with the experimental findings. However, it was observed that the gas-phase results did not replicate selective C-H hydroxylation observed experimentally when CAT1 catalyzed hydrocarbon oxidations by H2O2via an HO-Fe(V)[double bond, length as m-dash]O oxidant (CAT1a)...
May 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28511899/signaling-pathways-to-and-from-the-hypophysial-pars-tuberalis-an-important-center-for-the-control-of-seasonal-rhythms
#8
REVIEW
Horst Werner-Korf
Seasonal (circannual) rhythms play an important role for the control of body functions (reproduction, metabolism, immune responses) in nearly all living organisms. Also humans are affected by the seasons with regard to immune responses and mental functions, the seasonal affective disorder being one of the most prominent examples. The hypophysial pars tuberalis (PT), an important interface between the hypophysial pars distalis and neuroendocrine centers in the brain, plays an essential role in the regulation of seasonal functions and may even be the seat of the circannual clock...
May 13, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28507615/no-association-between-25-oh-vitamin-d-level-and-hypothyroidism-among-females
#9
Imad R Musa, Gasim I Gasim, Sajjad Khan, Ibrahim A Ibrahim, Hamdi Abo-Alazm, Ishag Adam
AIM: The aim was to investigate serum vitamin D (25-OH) level among females with hypothyroidism. MATERIALS AND METHODS: A case-control study (58 in each arm) was conducted in Arar Central Hospital, Kingdom Saudi Arabia. The cases were females with hypothyroidism, and healthy females were controls. TSH, thyroid hormones: Free T3 (FT3) and Free T4 (FT4) and haemoglobin levels were measured in all participants. Serum vitamin D (25-OH) level was measured using the spectrophotometry...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28504824/thyroid-function-after-tsh-suppression-for-thyroid-cancer-when-is-optimal-time-to-check
#10
Laura Ward, Danilo Villagelin
The vertiginous expansion of knowledge about endocrinology brings some caveats to the clinical practice. For instance, differentiated thyroid cancer, which was a relatively uncommon neoplasia 40 years ago(1) , has been increasing more than any other type of cancer in the last decade(2) . In fact, it became the most common neoplasia in women of certain countries(3) . However, despite this impressive increase in incidence, differentiated thyroid cancer mortality rates remain like 40 years ago(1) . This article is protected by copyright...
May 15, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28502654/radiation-induced-hypothyroidism-in-patients-with-breast-cancer-a-retrospective-analysis-of-243-cases
#11
Gul Kanyilmaz, Meryem Aktan, Mehmet Koc, Hikmettin Demir, Lutfi Saltuk Demir
This study aims to estimate the incidence of hypothyroidism (HT) and to evaluate the predictors affecting the development of HT after radiotherapy (RT) for breast cancer, with a focus on radiation dose-volumetric parameters. Between 2009 and 2015, 243 patients undergoing RT for breast cancer were retrospectively analyzed. Free triiodothyronine (FT3), free thyroxin (FT4), and thyrotropin (TSH) were monitored before and after RT. The relation between the doses to thyroid gland (Dmean, Dmax, Dmin), percentage of thyroid volume receiving > 10 Gy, 20 Gy, 30 Gy, 40 Gy, and 50 Gy (V10 to V50), absolute thyroid volume, and HT were analyzed...
May 11, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28502134/thyroid-dysfunctions-in-a-sample-of-egyptian-children-and-adolescents-with-systemic-lupus-erythematosus-relation-to-disease-activity-and-duration
#12
Hend H Abd-Elnabi, Mohamed A El-Gamasy, Maher A Abd-Elhafez
Systemic lupus erythematosus (SLE) is a chronic, autoimmune, inflammatory disease affects any organ of the body, including the thyroid gland. Both hypothyroidism and hyperthyroidism have been found in SLE patients more frequently than general population. The aim of this study was to evaluate the frequency of autoimmune thyroid dysfunctions in juvenile SLE and its relation to disease activity and duration. A prospective case-control study was carried on 40 children with juvenile SLE and 30 healthy as controls, all were subjected to measurement of serum TSH, Free T3, Free T4 and anti-TG by ELISA...
June 2016: Egyptian Journal of Immunology
https://www.readbyqxmd.com/read/28500830/association-between-tpo-asn698thr-and-thr725pro-gene-polymorphisms-and-serum-anti-tpo-levels-in-iranian-patients-with-subclinical-hypothyroidism
#13
Amirhosein Khoshi, Alireza Sirghani, Mehran Ghazisaeedi, Ali Zare Mahmudabadi, Amir Azimian
OBJECTIVE: Subclinical hypothyroidism (SCH) is defined as high levels of TSH in the presence of normal levels of serum FT4. Since thyroid peroxidase (TPO) plays a key role in thyroid hormone synthesis, variations in the TPO gene can change the enzyme structure and result in the production of anti-TPO antibodies. The aim of this study was to examine the relationship between the Asn698Thr (A2095C) and Thr725Pro (A2173C) polymorphisms of the TPO gene and anti-TPO levels in patients with SCH...
January 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28500828/the-impact-of-thyroid-autoimmunity-tpoab-on-bone-density-and-fracture-risk-in-postmenopausal-women
#14
Snezana P Polovina, Dragana Miljic, Sladjana Zivojinovic, Natasa Milic, Dragan Micic, Vera Popovic Brkic
OBJECTIVE: Skeletal development, linear growth, cartilage biology and bone turnover are highly dependent on the activity of thyroid hormones. Thyroid dysfunction affects the skeleton, and autoimmune thyroid disease, manifesting as a chronic inflammatory condition, may be an important contributing factor to impaired bone quality in these patients. MATERIALS AND METHODS: Measurement of TSH, FT4, TPOAb and bone mineral density and FRAX score calculations were performed in 189 postmenopausal women (110 euthyroid women and 79 women diagnosed with subclinical hypothyroidism) divided into subgroups according to the presence of TPOAb...
January 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28500826/serum-kisspeptin-concentrations-are-negatively-correlated-with-body-mass-index-in-adolescents-with-anorexia-nervosa-and-amenorrhea
#15
Flora Bacopoulou, George I Lambrou, Maria-Evangelia Rodanaki, Evgenia Stergioti, Vasiliki Efthymiou, Efthymios Deligeoroglou, Sophia I Markantonis
OBJECTIVE: To measure, for the first time, serum kisspeptin concentrations in adolescent females with anorexia nervosa (AN) and associated amenorrhea, and investigate potential correlations of kisspeptin with anthropometric, bone and hormonal data. DESIGN: Setting: University Adolescent Medicine Center. PARTICIPANTS: Females aged 12-20 years with typical or atypical AN (based on DSM-5 diagnostic criteria) and controls. INTERVENTIONS: Measurement of body mass index (BMI), whole body/lumbar spine bone mineral density and serum concentrations of kisspeptin, follicle stimulating hormone, luteinizing hormone (LH), prolactin (PRL), thyroid stimulating hormone (TSH), free thyroxine, triiodothyronine, estradiol (E2), 17-hydroxyprogesterone...
January 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28500624/temporal-trends-for-thyroid-stimulating-hormone-tsh-and-thyroid-peroxidase-antibody-atpo-testing-across-two-phases-of-iodine-fortification-in-tasmania-1995-2013
#16
A Hong, B Stokes, P Otahal, D Owens, J R Burgess
CONTEXT: Tasmania is an island State of the Australian Commonwealth with a well-documented history of mild iodine deficiency. Between 2001 and 2009 Tasmania experienced two incremental phases of iodine fortification. OBJECTIVE: To examine trends for thyroid stimulating hormone (TSH) and thyroid peroxidase antibody (ATPO) testing and their relationship to different phases of iodine nutrition in the Tasmanian population between 1995 and 2013. DESIGN: Retrospective longitudinal study...
May 13, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28500083/hepatic-thyroid-signaling-of-heat-stressed-late-pregnant-and-early-lactating-cows
#17
Joachim Weitzel, Thorsten Viergutz, Dirk Albrecht, Rupert M Bruckmaier, Marion Schmicke, Armin Tuchscherer, Franziska Koch, Björn Kuhla
During the transition between late gestation and early lactation dairy cows experience severe metabolic stress due to the high energy and nutrient requirements of the fetus and the mammary gland. Additional thermal stress as occurring with rising temperatures during the ongoing climate change has further adverse implications on energy intake, metabolism and welfare. The thyroid hormone (TH)-mediated cellular signaling has a pivotal role in regulation of body temperature, energy intake and metabolic adaptation to heat...
May 12, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28497767/-evaluation-of-a-thyroid-nodule
#18
Geir Tryggvason, Birgir Briem
Thyroid nodules are common and their incidence has increased due to various factors. Systematic approach to the work-up of thyroid nodules is necessary to decrease overdiagnosis as well as over treatment. Applying the trifecta of history, physicial examination and high-resolution ultrasound (HRUS) as well as fine needle aspiration biopsy (FNAB) with added TSH measurement is important in the work-up. HRUS is a central part in the diagnostic approach, being able to risk classify nodules and selecting nodules for FNAB...
January 2017: Læknablađiđ
https://www.readbyqxmd.com/read/28493136/risk-factors-for-cardiovascular-disease-in-subclinical-hypothyroidism
#19
F Decandia
Subclinical hypothyroidism (SH), defined as an increased serum thyrotropin (TSH) level and normal plasma-free thyroid hormones' concentrations, is common in the general population, in particular, among elderly women. Its prevalence ranges from 4 to 15% and up to 20% among females aged > 60 year. Although SH has been associated with atherosclerotic cardiovascular disease (CVD), it is acknowledged that the high prevalence of dyslipidemia in elderly people is considered a common biochemical condition. Therefore, whether SH is associated with a higher risk for CVD is still controversial...
May 10, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28490896/granuloma-annulare-relationship-to-diabetes-mellitus-thyroid-disorders-and-tuberculin-skin-test
#20
Pedram Alirezaei, Mahmood Farshchian
BACKGROUND: Granuloma annulare is a benign inflammatory disease of the skin. The etiology and pathogenesis of the disease are not yet determined, but some authors have proposed that it might be associated with a variety of underlying conditions such as thyroid disorders, diabetes mellitus and positive tuberculin skin test. OBJECTIVE: This study was conducted to find the probable relationship between granuloma annulare and diabetes mellitus, thyroid disorders and positive tuberculin skin test...
2017: Clinical, Cosmetic and Investigational Dermatology
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