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Triiodothyronine

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https://www.readbyqxmd.com/read/28728405/effect-of-rapeseed-meal-supplementation-to-gestation-diet-on-reproductive-rerformance-blood-profiles-and-milk-composition-of-sows
#1
Hyunbong Choi, Song Shan Jin, Sung Woong Jung, Jae Cheol Jang, Jin Su Hong, Jae Hark Jeong, Y Y Kim
Objective: This experiment was conducted to evaluate the effect of dietary supplementation levels of rapeseed meal (RSM) in gestation diets on reproductive performance, blood profiles and milk composition of sows and performance of their progeny. Methods: A total of 55 mixed-parity sows (Yorkshire × Landrace; average parity = 3.82) with an initial body weight (BW) of 193.0 kg were used in this experiment. Sows were allotted to one of 5 treatments at breeding based on BW and backfat thickness in a completely randomized design...
July 17, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28726184/hormetic-effect-of-triiodothyronine-in-metabolically-healthy-obese-persons
#2
Ji Eun Jun, Tae Hyuk Kim, Seung-Eun Lee, You-Bin Lee, Jae Hwan Jee, Ji Cheol Bae, Sang-Man Jin, Kyu Yeon Hur, Jae Hyeon Kim, Sun Wook Kim, Jae Hoon Chung, Yong-Ki Min, Moon-Kyu Lee
PURPOSE: Metabolically healthy obese is the designation for a subgroup of obese individuals with normal metabolic features. However, metabolically healthy obese individuals are prone to developing metabolic syndrome. Serum triiodothyronine (T3) levels are associated with various metabolic risk factors including obesity. Therefore, this longitudinal study aimed to explore the possible correlation between serum T3 concentration and the onset of MetS in metabolically healthy obese persons...
July 19, 2017: Endocrine
https://www.readbyqxmd.com/read/28725979/effect-of-weight-loss-after-bariatric-surgery-on-thyroid-stimulating-hormone-levels-in-patients-with-morbid-obesity-and-normal-thyroid-function
#3
João Sérgio Neves, Sofia Castro Oliveira, Pedro Souteiro, Jorge Pedro, Daniela Magalhães, Vanessa Guerreiro, Rita Bettencourt-Silva, Maria Manuel Costa, Ana Cristina Santos, Joana Queirós, Ana Varela, Paula Freitas, Davide Carvalho
BACKGROUND: Several studies have reported that morbid obesity is associated with increased thyroid-stimulating hormone (TSH) levels. However, it is not clear what is the impact of bariatric surgery on postoperative thyroid function. The aim of this study was to evaluate the effect of weight loss after bariatric surgery on TSH levels in euthyroid patients with morbid obesity. METHODS: We performed a retrospective observational study of 949 euthyroid patients (86...
July 19, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28723842/reduced-neuromuscular-performance-in-amenorrheic-elite-endurance-athletes
#4
Åsa B Tornberg, Anna Melin, Fiona Manderson Koivula, Anders Johansson, Sven Skouby, Jens Faber, Anders Sjödin
INTRODUCTION: Secondary functional hypothalamic amenorrhea (SFHA) is common among female athletes, especially in weight-sensitive sports. The aim of this study was to investigate the link between SFHA and neuromuscular performance in elite endurance athletes. METHODS: Sixteen eumenorrheic (EUM) and 14 SFHA athletes from national teams and competitive clubs participated. Methods included gynecological examination; body composition (DXA);; resting metabolic rate and work efficiency; exercise capacity; knee muscular strength (KMS) and knee muscular endurance (KME); reaction time (RT); blood sampling performed on the 3rd-5th day of the menstrual cycle, and 7-day assessment of energy availability...
July 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28723610/pediatric-reference-intervals-for-29-ortho-vitros-5600-immunoassays-using-the-caliper-cohort-of-healthy-children-and-adolescents
#5
Victoria Higgins, Angela W S Fung, Man Khun Chan, Joseph Macri, Khosrow Adeli
BACKGROUND: Accurate reference intervals (RIs) based on a healthy pediatric population are essential for pediatric test result interpretation. The CALIPER project has recruited a large healthy cohort and completed a series of a priori studies to address gaps in pediatric RIs. As immunoassays from different manufacturers for endocrine and special chemistry markers are not standardized and show marked intermethod differences, direct RI studies are needed for each major analytical platform...
July 19, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28717364/serum-free-thyroxine-levels-were-associated-with-pulmonary-hypertension-and-pulmonary-artery-systolic-pressure-in-euthyroid-patients-with-coronary-artery-disease
#6
Bingjie Wu, Jingjing Jiang, Minghui Gui, Lin Liu, Qiqige Aleteng, Shanshan Wang, Xiaojing Liu, Yan Ling, Xin Gao
The aim of this study was to evaluate the association between thyroid hormone levels, pulmonary hypertension (PH), and pulmonary artery systolic pressure (PASP) in euthyroid patients with coronary artery disease (CAD). A cross-sectional study was conducted in individuals who underwent coronary angiography and were diagnosed as CAD from March 2013 to November 2013. 811 subjects (185 women and 626 men) were included in this study. PASP was measured by transthoracic Doppler echocardiography. 86 patients were diagnosed as PH and had significantly higher free thyroxine (FT4) levels than those without PH...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28717317/effect-of-season-on-physiological-biochemical-hormonal-and-oxidative-stress-parameters-of-indigenous-sheep
#7
Sawankumar D Rathwa, A A Vasava, M M Pathan, S P Madhira, Y G Patel, A M Pande
AIM: This study was conducted to evaluate the impact of summer and winter season on physiological, biochemical, hormonal, and antioxidant parameters in Indigenous sheep. MATERIALS AND METHODS: The research was carried out during summer and winter season. 8 adult apparently healthy female sheep (aged 2-4 years) of similar physiological status were selected. Daily ambient temperature and relative humidity were recorded to calculate the temperature-humidity index (THI)...
June 2017: Veterinary World
https://www.readbyqxmd.com/read/28713236/modulation-of-calcitonin-parathyroid-hormone-and-thyroid-hormone-secretion-by-electrical-stimulation-of-sympathetic-and-parasympathetic-nerves-in-anesthetized-rats
#8
Harumi Hotta, Akiko Onda, Harue Suzuki, Philip Milliken, Arun Sridhar
The thyroid and parathyroid glands are dually innervated by sympathetic (cervical sympathetic trunk [CST]) and parasympathetic (superior laryngeal nerve [SLN]) nerve fibers. We examined the effects of electrical stimulation of efferent or afferent nerve fibers innervating the thyroid and parathyroid glands on the secretion of immunoreactive calcitonin (iCT), parathyroid hormone (iPTH), 3,3',5-triiodothyronine (iT3), and thyroxine (iT4) from the thyroid and parathyroid glands. In anesthetized and artificially ventilated rats, thyroid venous blood was collected...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28711354/the-roles-of-metabolic-thermogenesis-in-body-fat-regulation-in-striped-hamsters-fed-high-fat-diet-at-different-temperatures
#9
Lu-Lu Shi, Wei-Jia Fan, Ji-Ying Zhang, Xiao-Ya Zhao, Song Tan, Jing Wen, Jing Cao, Xue-Ying Zhang, Qing-Sheng Chi, De-Hua Wang, Zhi-Jun Zhao
The metabolic thermogenesis plays important roles in thermoregulation, and it may be also involved in body fat regulation. The thermogenesis of brown adipose tissue (BAT) is largely affected by ambient temperature, but it is unclear if the roles in body fat regulation are dependent on the temperature. In the present study, uncoupling protein 1 (ucp1)-based BAT thermogenesis, energy budget and body fat content were examined in the striped hamsters fed high fat diet (HF) at cold (5°C) and warm (30°C) temperatures...
July 12, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28705270/serum-fetuin-a-levels-and-thyroid-function-inmiddle-aged-and-elderly-chinese
#10
Xin Ru Deng, Lin Ding, Tian Ge Wang, Min Xu, Jie Li Lu, Mian Li, Zhi Yun Zhao, Yu Hong Chen, Yu Fang Bi, Yi Ping Xu, Yu Xu
Serum fetuin-A levels are reportedly elevated in hyperthyroidism. However, there are few relevant epidemiologic studies. We conducted a cross-sectional study in Songnan community, China in 2009 to investigate the association between serum fetuin-A concentrations and thyroid function. A total of 2,984 participants aged 40 years and older were analyzed. Multivariable linear regression analysis revealed that serum fetuin-A concentra- tions were positively associated with log (free triiodothyronine) and were inversely associated with log (thyroid peroxidase antibody) after adjustment (both P < 0...
June 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28701428/a-mercury-toxicity-case-complicated-by-hyponatremia-and-abnormal-endocrinological-test-results
#11
Matthew Carter, Abdul Abdi, Fareeha Naz, Farouq Thabet, Arpita Vyas
Mercury (Hg) poisoning is considered a rare disease by the National Institutes of Health and the diagnosis can present great challenges to clinicians. Children who are exposed to Hg can present with a wide variety of symptoms, including acrodynia, tremor, excessive salivation, and psychiatric symptoms, including insomnia. However, endocrinologic manifestations from Hg exposure are less well known. This is a case report of a 12-year-old boy who presented with body rash, irritability, insomnia, and profuse sweating after returning from a summer camp...
July 13, 2017: Pediatrics
https://www.readbyqxmd.com/read/28694701/high-levels-of-nesfatin-1-in-relation-to-the-dysfunction-of-the-hypothalamic-pituitary-adrenal-and-hypothalamus-pituitary-thyroid-axes-in-depressed-patients-with-subclinical-hypothyroidism
#12
Ya-Yun Xu, Jun Liang, Yin Cao, Feng Shan, Yang Liu, Qing-Rong Xia
Despite the increasing amount of evidence suggesting a relationship between depression and subclinical hypothyroidism (SCH), the exact mechanism underlying this relationship remains unclear. The main purpose of this study was to investigate the roles of plasma Nesfatin-1 levels and dysfunction of the hypothalamic-pituitary-adrenal (HPA) and hypothalamus-pituitary-thyroid (HPT) axes in the comorbidity of depression and SCH. Dysfunctions of the HPA and HPT axes were detected by measuring plasma corticosterone and thyroid-stimulating hormone (TSH) concentrations, respectively...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28689503/long-term-adaptation-capacity-of-ponies-effect-of-season-and-feed-restriction-on-blood-and-physiological-parameters
#13
L Brinkmann, A Riek, M Gerken
Domesticated horses are increasingly kept under semi-natural housing conditions, whereas their adaptation capacity is not fully investigated. In all, 10 Shetland pony mares were held under semi-extensive conditions for 1 year. In winter animals were allocated into two feeding groups (60% and 100% of maintenance energy requirement, respectively). Triiodothyronine, thyroxine, non-esterified fatty acids (NEFA), total bilirubin, total protein, triglyceride, glucose, insulin and hair length were measured at monthly intervals, whereas BW, body condition score, cresty neck score and resting heart rate were recorded every 2 weeks...
July 10, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28688760/-once-weekly-l-thyroxine-treatment-in-non-compliance-a-case-report
#14
C Oliver, M Grino, P Moatti Vacher-Coponat, I Morange, F Retornaz
INTRODUCTION: The non-adherence to substitutive treatment by L-thyroxine is the main cause of the discordance between high thyrotropin values and high doses of the drug. OBSERVATION: In a 36-year-old patient with post-surgery hypothyroidism, thyrotropin values ranged between 100 and 400 mUI/L, although daily replacement therapy included 300 μg of L-thyroxine and 75 μg of L-triiodothyronine. The oral loading test with L-thyroxine was normal and thyrotropin serum level returned to normal values under weekly oral administration of 1000 μg L-thyroxine...
July 5, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28686898/prenatal-transfer-of-decabromodiphenyl-ether-bde-209-results-in-disruption-of-the-thyroid-system-and-developmental-toxicity-in-zebrafish-offspring
#15
Zhihua Han, Yufei Li, Shenghu Zhang, Ninghui Song, Huaizhou Xu, Yao Dang, Chunsheng Liu, John P Giesy, Hongxia Yu
Decabromodiphenyl ether (BDE-209) was one of most widely-used polybrominated diphenyl ether (PBDE) flame retardants and is frequently detected in both abiotic and biotic samples from environment. However, knowledge of its transgenerational risks is limited. Here, 4-month-old zebrafish were exposed to various concentrations of BDE-209 (0, 3, 30 or 300μg/L) for 28days and spawned in clean water without BDE-209. Concentrations of triiodothyronine (T3) and thyroxine (T4) as well as expressions of genes involved in the hypothalamic-pituitary-thyroid (HPT) axis were measured in offspring after exposure of adult zebrafish to BDE-209...
June 23, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28685559/both-3-5-diiodo-l-thyronine-t2-and-t3-modulate-glucose-induced-insulin-secretion
#16
P Fallahi, S M Ferrari, E Santini, S Camastra, G Frenzilli, M Puccini, F Goglia, A Lanni, P Marchetti, A Antonelli
3,5-diiodo-L-thyronine (T2), a naturally existing iodothyronine, has biological effects on humans, but no information is available on its action on pancreatic b-cells. We evaluated its effect vs triiodothyronine (T3), on glucose-induced insulin secretion in INS-1e cells, a rat insulinoma line, and on human islets. INS-1e were incubated in the presence/absence of T2 or T3 (0.1 nmol/L-10 μmol/L), and glucose (3.3, 7.5, 11.0, and 20 mmol/L). Insulin release and content (at 11.0 and 20 mmol/L glucose) were significantly (p less than 0...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28683408/dissimilar-effects-of-organohalogenated-compounds-on-thyroid-hormones-in-glaucous-gulls
#17
Marte Melnes, Geir W Gabrielsen, Dorte Herzke, Kjetil Sagerup, Bjørn Munro Jenssen
The glaucous gull (Larus hyperboreus) is an arctic top predator and scavenger exposed to high levels of mixtures of organohalogenated contaminants (OHCs) of which many interfere with the thyroid hormone (TH) system. In the present study, we applied statistical modeling to investigate the potential combined influence of the mixture of chlorinated, brominated and perfluorinated organic compounds in plasma of glaucous gulls on their plasma TH concentrations. In females, there were significant negative associations between several organochlorinated compounds (OCs) and free thyroxin (FT4) and triiodothyronine (FT3), indicating additive negative effects on FT4 and FT3...
July 3, 2017: Environmental Research
https://www.readbyqxmd.com/read/28683288/hypothalamic-ampk-er-stress-jnk1-axis-mediates-the-central-actions-of-thyroid-hormones-on-energy-balance
#18
Noelia Martínez-Sánchez, Patricia Seoane-Collazo, Cristina Contreras, Luis Varela, Joan Villarroya, Eva Rial-Pensado, Xabier Buqué, Igor Aurrekoetxea, Teresa C Delgado, Rafael Vázquez-Martínez, Ismael González-García, Juan Roa, Andrew J Whittle, Beatriz Gomez-Santos, Vidya Velagapudi, Y C Loraine Tung, Donald A Morgan, Peter J Voshol, Pablo B Martínez de Morentin, Tania López-González, Laura Liñares-Pose, Francisco Gonzalez, Krishna Chatterjee, Tomás Sobrino, Gema Medina-Gómez, Roger J Davis, Núria Casals, Matej Orešič, Anthony P Coll, Antonio Vidal-Puig, Jens Mittag, Manuel Tena-Sempere, María M Malagón, Carlos Diéguez, María Luz Martínez-Chantar, Patricia Aspichueta, Kamal Rahmouni, Rubén Nogueiras, Guadalupe Sabio, Francesc Villarroya, Miguel López
Thyroid hormones (THs) act in the brain to modulate energy balance. We show that central triiodothyronine (T3) regulates de novo lipogenesis in liver and lipid oxidation in brown adipose tissue (BAT) through the parasympathetic (PSNS) and sympathetic nervous system (SNS), respectively. Central T3 promotes hepatic lipogenesis with parallel stimulation of the thermogenic program in BAT. The action of T3 depends on AMP-activated protein kinase (AMPK)-induced regulation of two signaling pathways in the ventromedial nucleus of the hypothalamus (VMH): decreased ceramide-induced endoplasmic reticulum (ER) stress, which promotes BAT thermogenesis, and increased c-Jun N-terminal kinase (JNK) activation, which controls hepatic lipid metabolism...
July 5, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28680357/direct-estimation-of-reference-intervals-for-thyroid-parameters-in-the-republic-of-srpska
#19
Bosa Mirjanic-Azaric, Sanja Avram, Tanja Stojakovic-Jelisavac, Darja Stojanovic, Mira Petkovic, Natasa Bogavac-Stanojevic, Svetlana Ignjatovic, Marina Stojanov
BACKGROUND: The aim of this study was to determine the reference values for thyrotropin (TSH), thyroid hormones (total and free thyroxine, T4 and fT4; total and free triiodothyronine, T3 and fT3), thyroglobulin (Tg) and thyroid antibodies (thyroid peroxidase, TPOAb and thyroglobulin antibody, TgAb) in the population of the Republic of Srpska. METHODS: A total of 250 euthyroid subjects were enrolled in this study. A direct method for choosing reference subjects was used to establish reference intervals...
April 2017: Journal of Medical Biochemistry
https://www.readbyqxmd.com/read/28679353/multi-center-benchmark-study-reveals-significant-variation-in-thyroid-testing-in-united-states
#20
David C Lin, Joely A Straseski, Robert L Schmidt, The Thyroid Benchmarking Group Various
BACKGROUND: Studies show that a significant portion of laboratory testing is unnecessary. Thyroid tests are some of the most commonly ordered laboratory tests, yet little is known about practice patterns for laboratory testing for thyroid disease. The objective of this study was to collect data on practice patterns for thyroid testing in the United States. METHODS: A survey was conducted to collect data on annual test volumes for thyroid stimulating hormone (TSH), free thyroxine (FT4), total thyroxine (TT4), free triiodothyronine (FT3), total triiodothyronine (TT3), triiodothyronine uptake (T3U), reverse triiodothyronine (rT3), and complete blood counts (CBC)...
July 5, 2017: Thyroid: Official Journal of the American Thyroid Association
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