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https://www.readbyqxmd.com/read/28208903/nephrotic-syndrome-increases-the-need-for-levothyroxine-replacement-in-patients-with-hypothyroidism
#1
Hareeshababu Karethimmaiah, Vijaya Sarathi
INTRODUCTION: Nephrotic syndrome is a known cause of hypothyroidism; however, its effect on replacement doses of L-thyroxine in patients with primary hypothyroidism is not systematically studied. AIM: The aim of the present study was to evaluate the effect of newly diagnosed nephrotic syndrome on the dose of L-thyroxine replacement in previously diagnosed patients with primary hypothyroidism who were on full, stable dose of L-thyroxine replacement for at least one year...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28205670/leptin-and-ghrelin-concentration-in-hyperthyroid-cats-before-and-after-radioactive-iodine-therapy-compared-to-euthyroid-control-cats
#2
Sina Marsilio, Barbara Glanemann, Lucile Martin, Balazs Szladovits, Reto Neiger
OBJECTIVE: Leptin and ghrelin, two peptide hormones with antagonistic effects on satiety and energy balance, could be involved in the pathogenesis of weight loss and polyphagia in cats with hyperthyroidism. Leptin generally decreases appetite and increases energy expenditure, while ghrelin exerts the opposite effects. MATERIALS AND METHODS: Leptin and ghrelin were measured in 42 client owned hyperthyroid cats with a body condition score (BCS) ≤ 5/9 before (T0) and 4 weeks after radioactive iodine treatment (RAIT) (T1)...
February 16, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28205257/status-of-internal-quality-control-for-thyroid-hormones-immunoassays-from-2011-to-2016-in-china
#3
Shishi Zhang, Wei Wang, Haijian Zhao, Falin He, Kun Zhong, Shuai Yuan, Zhiguo Wang
BACKGROUND: Internal quality control (IQC) plays a key role in the evaluation of precision performance in clinical laboratories. This report aims to present precision status of thyroid hormones immunoassays from 2011 to 2016 in China. METHODS: Through Clinet-EQA reporting system, IQC information of Triiodothyronine and Thyroxine in the form of free and total (FT3, TT3, FT4, TT4), as well as Thyroid Stimulating Hormone (TSH) were collected from participant laboratories submitting IQC data in February, 2011-2016...
February 15, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28204898/surgical-treatment-and-outcome-of-tsh-producing-pituitary-adenomas
#4
Roman Rotermund, Nina Riedel, Till Burkhardt, Jakob Matschke, Nils-Ole Schmidt, Jens Aberle, Jörg Flitsch
BACKGROUND: Thyrotropin-producing adenomas (TSHomas) account for approximately 1-2% of all pituitary tumors. Recently, there has been debate on primary treatment as some studies suggest a high rate of hypopituitarism after transsphenoidal surgery and therefore suggest primary use of somatostatin analogs (SSA) instead. We would like to challenge this assumption by presenting our single-center experience with transsphenoidal surgery for TSHoma. METHODS: Fifteen patients treated consecutively between May 2010 and December 2016 were analyzed for long-term postoperative remission and pituitary function...
February 15, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28202636/moderate-to-severe-iodine-deficiency-in-the-first-1000-days-causes-more-thyroid-hypofunction-in-infants-than-in-pregnant-or-lactating-women
#5
Sara Stinca, Maria Andersson, Isabelle Herter-Aeberli, Laila Chabaa, Mohamed Cherkaoui, Nawal El Ansari, Abdelmounaim Aboussad, Sandra Weibel, Michael B Zimmermann
Background: Iodine deficiency early in the life cycle-the "first 1000 days"-can cause hypothyroidism and irreversibly impair neuromotor development. However, the relative vulnerability among women and infants during this critical period is unclear, making it difficult for country-based programs with limited resources to prioritize their iodine interventions.Objective: Our aim was to determine the prevalence of thyroid hypofunction in women and infants living in an area of moderate-to-severe iodine deficiency...
February 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28199740/incidence-of-abnormal-liver-biochemical-tests-in-hyperthyroidism
#6
Tiffany Y Lin, Anshula O Shekar, Ning Li, Michael W Yeh, Sammy Saab, Mark Wilson, Angela M Leung
OBJECTIVE: Abnormal serum liver function tests are common in patients with untreated thyrotoxicosis, even prior to the initiation of antithyroidal medications that may worsen their severity. There is a wide range of the incidence of these abnormalities in the published literature. The aim of this study was to assess the risks factors and threshold of thyrotoxicosis severity for developing an abnormal liver biochemical test upon the diagnosis of new thyrotoxicosis. DESIGN: Single-institution retrospective cohort study...
February 15, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28194694/thyroid-status-of-iodine-deficient-newborn-infants-living-in-central-region-of-turkey-a-pilot-study
#7
Osman Bastug, Levent Korkmaz, Hulya Halis, Seyma Memur, Sabriye Korkut, Ahmet Ozdemir, Tamer Gunes, Mehmet Adnan Ozturk, Selim Kurtoglu
BACKGROUND: Iodine deficiency (ID) during the fetal and neonatal periods can lead to neonatal hypothyroidism. This study was conducted to evaluate the effect of ID on the thyroid hormone level of newborns living in Turkey. METHODS: Between 1998 and 2013, 71 newborns with a urinary iodine concentration <100 μg/L were recruited into the study. Data on thyroid volume, free triiodothyronine (fT3), free thyroxine (fT4), thyroid stimulating hormone (TSH), and thyroglobulin (Tg) were collected from all newborns, and on breast milk iodine from their mothers...
February 14, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28190662/prospective-ultrasonographic-and-endocrine-predictors-of-spermatogenic-onset-in-ram-lambs
#8
Pawel M Bartlewski, Jennifer L Giffin, Olutobi A Oluwole, Ann C Hahnel
The objective of this study was to examine testicular ultrasonographic characteristics and endocrine profiles in prepubescent ram lambs for correlations with the age at first detection of elongated spermatids (ESt age). Bi-weekly ultrasound examinations and weekly testicular biopsies began at 10 weeks of age or at the time that testicular volume reached 15cm(3), and continued until 1-2 weeks after Est's were first detected by histological examination of testicular biopsies in twenty-two spring-born Rideau Arcott×Polled Dorset lambs...
February 6, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28189060/response-of-the-antioxidant-enzymes-of-the-erythrocyte-and-alterations-in-the-serum-biomarkers-in-rats-following-oral-administration-of-nanoparticles
#9
Esin G Canli, Gülüzar Atli, Mustafa Canli
In this study, Al2O3, CuO and TiO2 nanoparticles (NPs) were administered to mature female rats (Rattus norvegicus var. albinos) via oral gavage (0, 0.5, 5, 50mg/kg b.w./day) for 14days to investigate their effects on 14 serum biomarkers and 4 antioxidant enzyme (catalase, superoxide dismutase, glutathione peroxidase, glutathione S-transferase) activities in the erythrocyte. Data showed that Al2O3 did not cause any significant (P>0.05) change in the parameters, except few cases, while CuO and TiO2 caused significant alterations in antioxidant system parameters of the erythrocytes...
February 4, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28189029/disruption-of-thyroxine-and-sex-hormones-by-1-2-dibromo-4-1-2-dibromoethyl-cyclohexane-dbe-dbch-in-american-kestrels-falco-sparverius-and-associations-with-reproductive-and-behavioral-changes
#10
Sarah C Marteinson, Vince Palace, Robert J Letcher, Kim J Fernie
1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (DBE-DBCH - formerly TBECH) is an emerging brominated flame retardant (BFR) pollutant with androgen potentiating ability and other endocrine disrupting effects in birds and fish. The objectives of this study were to determine the effects of exposure to environmentally-relevant levels of DBE-DBCH on circulating levels of thyroid and sex steroid hormones in American kestrels, and if hormonal concentrations were related to previously reported changes in reproductive success and courtship behaviors...
February 8, 2017: Environmental Research
https://www.readbyqxmd.com/read/28185934/corticosteroids-deeply-depress-the-in-vitro-steroidogenic-capacity-of-eurasian-perch-ovary-at-the-end-of-the-reproductive-cycle
#11
S N M Mandiki, S Milla, S Nkogo Robles, P Kestemont
Corticosteroids play positive or negative role in the reproductive mechanisms of many fish species but the physiological contexts relating to such biphasic actions are not well defined. In the present study we investigated to what extent corticosteroids (cortisol-Co, 11-deoxycorticosterone-DOC) hormones may interfere with the steroidogenic capacity of Eurasian perch follicles, and we tested whether the negative interference of corticosteroids may be mitigated by potential stimulating endocrine factors, namely insulin-like growth factor-1 (IGF), human chorionic gonadotropin (HCG) or thyroid hormones (Triidothyronine-T3, thyroxine-T4)...
February 6, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28179450/prevalence-incidence-and-associated-co-morbidities-of-treated-hypothyroidism-an-update-from-a-european-population
#12
Carlo B Giorda, Paolo Carnà, Francesco Romeo, Giuseppe Costa, Barbara Tartaglino, Roberto Gnavi
OBJECTIVE: Estimates of the prevalence of hypothyroidism in unselected populations date from the late 1990s. We present an update on the prevalence and incidence of overt hypothyroidism in Piedmont, northwest Italy, and examine the association between hypothyroidism and multiple chronic comorbidities. DESIGN AND METHODS: Data were obtained from drug prescription and hospital discharge databases. Individuals who had received at least two levothyroxine prescriptions in 2012 were defined as having hypothyroidism; those who had undergone thyroidectomy or I131 irradiation in the previous 5 years were defined as having iatrogenic hypothyroidism; and those who had either obtained exemption from treatment co-payment or had been discharged from hospital with a chronic comorbidity (diabetes, connective tissue diseases) were identified as having one of these conditions...
February 8, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28176633/hypothyroidism-and-nephrotic-syndrome-why-when-and-how-to-treat
#13
Francesca Di Mario, Riccardo Pofi, Antonietta Gigante, Laura Rivoli, Edoardo Rosato, Andrea Maria Isidori, Rosario Cianci, Biagio Barbano
Hypothyroidism, characterised by low/normal free thyroxine (FT4) and free tri-iodothyronine (FT3) with elevated thyroid-stimulating hormone (TSH), is a well-known complication of nephrotic syndrome (NS). This is a common feature of primary and secondary glomerular diseases and comprises loss of protein in the urine and increased urinary excretion of thyroid hormones and thyroxine-binding globulin. With a normal thyroid reserve, this scenario is associated with the development of subclinical hypothyroidism, with a slight increase in TSH and normal free fractions...
February 7, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28171716/reference-intervals-of-thyroid-hormones-during-pregnancy-in-korea-an-iodine-replete-area
#14
Hye Jeong Kim, Yoon Young Cho, Sun Wook Kim, Tae Hyuk Kim, Hye Won Jang, Soo-Youn Lee, Suk-Joo Choi, Cheong-Rae Roh, Jong-Hwa Kim, Jae Hoon Chung, Soo-Young Oh
Background/Aims: Maternal thyroid dysfunction has been associated with adverse pregnancy outcomes. The purpose of our study was to establish trimester-specific reference intervals for thyroid hormones in pregnant women in Korea, where iodine intake is more than adequate and to examine pregnancy and perinatal outcomes in their offspring. Methods: Among 459 healthy pregnant women who were screened, we enrolled 417 subjects who had negative results for thyroid autoantibodies...
February 8, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28166158/interrupted-131i-procedures-for-patients-with-differentiated-thyroid-cancer-comparing-thyroxine-withdrawal-with-recombinant-thyrotropin-preparation-techniques
#15
Shawn Karls, Gad Abikhzer, Michael Tamilia, Stephan Probst
OBJECTIVE: In patients with differentiated thyroid carcinoma scheduled to receive doses of I for diagnostic or therapeutic purposes, we compared patients prepared with thyroid hormone withdrawal (THW) versus recombinant human thyroid stimulating hormone (rh-TSH) to evaluate the incidence of cancelled procedures because of inadequate thyroid stimulation. METHODS: Thyroid cancer patients after thyroidectomy who were scheduled for diagnostic or therapeutic I procedures between January 2012 and June 2015 were retrospectively reviewed...
February 3, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28164629/a-controversial-new-approach-to-address-hematological-parameters-in-hashimoto-s-thyroiditis
#16
Dilek Arpaci, Gonul Gurol, Hasan Ergenc, Hayrullah Yazar, Aysel G Tocoglu, Ihsan H Ciftci, Ali Tamer
BACKGROUND: Hashimoto's thyroiditis (HT) is a common autoimmune disorder. Genetic, environmental, and immunological factors all play a role in the pathogenesis of HT, but the effects of lymphocytes and platelets on the pathophysiology of HT are still unknown. In this study, we evaluated the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and mean platelet volume (MPV) in HT groups and HT subgroups with low cardiovascular risks. METHODS: This study included 92 patients with HT and 38 control subjects...
July 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164551/analytical-evaluation-of-portable-and-simple-frend-fluorescent-immunoassay-for-rapid-quantification-of-thyroid-stimulating-hormone-and-free-thyroxine
#17
Hye-Sun Park, Jaeeun Yoo, Hyeyoung Lee, Ae R Choi, Jihyeong Ryu, Ki H Park, Eun-Jee Oh
BACKGROUND: The FREND™ thyroid stimulating hormone (TSH) and free thyroxine (FT4) assays are newly developed rapid quantitative immunoassays utilizing antibody-conjugated fluorescent nanoparticles in a microfluidic flow system. The FREND system is a simple and portable fluorescence reader with rapid turnaround time (4 - 10 minutes). METHODS: The analytical sensitivity, precision, and linearity were evaluated. For the method comparison, FREND TSH and FT4 levels were compared with those from ADVIA Centaur XP and Abbott ARCHITECT i2000...
December 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164073/perinatal-factors-associated-with-neonatal-thyroid-stimulating-hormone-in-normal-newborns
#18
Seong Yong Lee
PURPOSE: This study was to evaluate the effect of neonatal, maternal, and delivery factors on neonatal thyroid-stimulating hormone (TSH) of healthy newborns. METHODS: Medical records of 705 healthy infants born through normal vaginal delivery were reviewed. Neonatal TSH levels obtained by neonatal screening tests were analyzed in relation to perinatal factors and any associations with free thyroxine (FT4) and 17-α hydroxyprogesterone (17OHP) levels. RESULTS: An inverse relationship was found between TSH and sampling time after birth...
December 2016: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28162782/associations-between-urinary-diphenyl-phosphate-and-thyroid-function
#19
Emma V Preston, Michael D McClean, Birgit Claus Henn, Heather M Stapleton, Lewis E Braverman, Elizabeth N Pearce, Colleen M Makey, Thomas F Webster
Triphenyl phosphate (TPHP) is a commonly used organophosphate flame retardant and plasticizer with widespread human exposure. Data on health effects of TPHP are limited. Recent toxicological studies suggest TPHP may alter thyroid function. We used repeated measures to assess the temporal variability in urinary concentrations of the TPHP metabolite, diphenyl phosphate (DPHP), and to examine relationships between DPHP concentrations and thyroid hormones. We sampled 51 adults at months 1, 6, and 12 from 2010 to 2011...
February 2, 2017: Environment International
https://www.readbyqxmd.com/read/28159025/iodine-status-and-thyroid-nodules-in-females-a-comparison-of-cyprus-and-romania
#20
S Gaengler, X D Andrianou, A Piciu, P Charisiadis, C Zira, K Aristidou, D Piciu, K C Makris
OBJECTIVES: The increased comparative prevalence rates of thyroid cancer in Cyprus (>EU average) led us to conduct this study on possible risk factors of thyroid nodules. Romania served as a reference with a comparative thyroid cancer prevalence < EU average. This study aimed to assess the association between urinary iodine (UI) and thyroid nodules in adult females (n = 208) from Cyprus and Romania. STUDY DESIGN: A case-control study (n = 208). METHODS: Cases were females with ultrasound-confirmed thyroid nodules and controls with confirmed absence of nodules...
February 2017: Public Health
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