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Thyroid stimulating hormone

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https://www.readbyqxmd.com/read/27914474/thyroid-hormones-associate-with-risk-of-incident-chronic-kidney-disease-and-rapid-decline-in-renal-function-a-prospective-investigation
#1
Xiaolin Huang, Lin Ding, Kui Peng, Lin Lin, Tiange Wang, Zhiyun Zhao, Yu Xu, Jieli Lu, Yuhong Chen, Weiqing Wang, Yufang Bi, Guang Ning, Min Xu
BACKGROUND: Thyroid hormones have been associated with renal dysfunction in cross-sectional studies. However, prospective studies exploring the effect of thyroid hormones on renal function decline were sparse and got contradictive results. We aimed to prospectively explore the associations of thyroid hormones with incident chronic kidney disease (CKD) and rapid decline in estimated glomerular filtration rate (eGFR) in Chinese adults. METHODS: The participants were from a community-based cohort including 2103 individuals aged 40 years or above without CKD at baseline...
December 3, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27913611/silent-somatotroph-tumour-revisited-from-a-study-of-80-patients-with-and-without-acromegaly-and-a-review-of-the-literature
#2
Laura Chinezu, Alexandre Vasiljevic, Jacqueline Trouillas, Marion Lapoirie, Emmanuel Jouanneau, Gérald Raverot
BACKGROUND: Silent somatotroph tumours are growth hormone (GH) immunoreactive (IR) pituitary tumours without clinical and biological signs of acromegaly. Their better characterisation is required to improve the diagnosis. MATERIALS AND METHODS: Twenty-one silent somatotroph tumours were compared to 59 somatotroph tumours with acromegaly. Tumours in each group were classified into GH and plurihormonal (GH/prolactin (PRL)/±thyroid-stimulating hormone (TSH)) and into densely granulated (DG) and sparsely granulated (SG) types...
February 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27910710/management-of-a-pregnant-woman-with-thyrotropinoma-a-case-report-and-review-of-the-literature
#3
Carolina M Perdomo, Jorge A Árabe, Miguel Á Idoate, Juan C Galofré
INTRODUCTION: Pituitary disorders during pregnancy are uncommon. The approach should include a close follow-up in order to reduce maternal and fetal risks associated with physiological changes during pregnancy or treatment side effects. MATERIALS AND METHODS: We report a 21-year-old woman with a thyroid-stimulating hormone-secreting pituitary macroadenoma and positive antithyroid antibodies. She was initially treated using transsphenoidal pituitary surgery. The patient relapsed 17-month post-surgery...
December 2, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27907809/does-exposure-to-phthalates-influence-thyroid-function-and-growth-hormone-homeostasis-the-taiwan-environmental-survey-for-toxicants-test-2013
#4
Han-Bin Huang, Wen-Harn Pan, Jung-Wei Chang, Hung-Che Chiang, Yue Leon Guo, Jouni J K Jaakkola, Po-Chin Huang
BACKGROUND: Previous epidemiologic and toxicological studies provide some inconsistent evidence that exposure to phthalates may affect thyroid function and growth hormone homeostasis. OBJECTIVE: To assess the relations between exposure to phthalates and indicators of thyroid function and growth hormone homeostasis disturbances both among adults and minors. METHODS: We conducted a population-based cross-sectional study of 279 Taiwanese adults (≥18 years old) and 79 minors (<18 years old) in 2013...
November 28, 2016: Environmental Research
https://www.readbyqxmd.com/read/27906594/the-relationship-between-thyroid-function-and-the-prevalence-of-type-2-diabetes-mellitus-in-euthyroid-subjects
#5
Yeqing Gu, Huihui Li, Xue Bao, Qing Zhang, Li Liu, Ge Meng, Hongmei Wu, Huanmin Du, Hongbin Shi, Yang Xia, Qian Su, Liyun Fang, Fei Yu, Huijun Yang, Bin Yu, Shaomei Sun, Xing Wang, Ming Zhou, Qiyu Jia, Qi Guo, Hong Chang, Guolin Wang, Guowei Huang, Kun Song, Kaijun Niu
PURPOSE: The thyroid hormones (TH) are primarily responsible for the regulation of energy balance and metabolism, suggesting that TH levels may contribute to the development of type 2 diabetes mellitus (T2DM). However, few studies have investigated the relationship between TH and T2DM in a general population. The aim of this study is to evaluate whether serum TH levels within the reference range are related to T2DM. METHODS: A cross-sectional study (n=15,296) was performed in Tianjin, China...
December 1, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27906195/congenital-hypothyroidism-with-delayed-thyroid-stimulating-hormone-elevation-in-premature-infants-born-at-less-than-30-weeks-gestation
#6
D C Kaluarachchi, T T Colaizy, L M Pesce, M Tansey, J M Klein
OBJECTIVE: Congenital hypothyroidism (CH) with delayed thyroid-stimulating hormone (TSH) elevation is a common form of thyroid dysfunction among premature infants. Routine newborn screening (NBS) may miss infants with CH with delayed TSH elevation. The objective of the study is to determine the prevalence of CH with delayed TSH elevation in premature infants and to identify associated risk factors. STUDY DESIGN: Retrospective analysis of serum thyroid function screening (TFS) at day of life 30 in premature infants <30 weeks gestation, admitted to University of Iowa Neonatal Intensive Care Unit between 1 July 2012 to 30 June 2015...
December 1, 2016: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/27906181/stat6-deficiency-ameliorates-graves-disease-severity-by-suppressing-thyroid-epithelial-cell-hyperplasia
#7
Xuechao Jiang, Bingbing Zha, Xiaoming Liu, Ronghua Liu, Jun Liu, Enyu Huang, Tingting Qian, Jiajing Liu, Zhiming Wang, Dan Zhang, Luman Wang, Yiwei Chu
Signal transducer and activator of transcription 6 (STAT6) is involved in epithelial cell growth. However, little is known regarding the STAT6 phosphorylation status in Graves' disease (GD) and its role in thyroid epithelial cells (TECs). In this study, we found that STAT6 phosphorylation (p-STAT6) was significantly increased in TECs from both GD patients and experimental autoimmune Graves' disease mice and that STAT6 deficiency ameliorated GD symptoms. Autocrine IL-4 signalling in TECs activated the phosphorylation of STAT6 via IL-4 R engagement, and the downstream targets of STAT6 were Bcl-xL and cyclin D1...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27905199/high-prevalence-of-anti-tsh-receptor-antibody-in-fibromyalgia-syndrome
#8
Kenya Nishioka, Toyoyoshi Uchida, Chie Usui, Ryota Tanaka, Takashi Matsushima, Yoshifuji Matsumoto, Ikuro Nakamura, Kusuki Nishioka, Nobutaka Hattori
AIM: Fibromyalgia syndrome (FMS) is defined as chronic widespread pain that cannot be accounted for by any other medical disorder. Our aim was to explore the prevalence of thyroid autoimmunity in patients with FMS. METHODS: For determining thyroid function in 207 FMS patients, we tested for the titers of free tri-iodothyronine, free thyroxine, thyroid-stimulating hormone (TSH), anti-thyroid peroxidase antibody (TPOAb), anti-thyroglobulin antibody (TgAb) and anti-TSH receptor antibody (TRAb)...
November 30, 2016: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/27904073/a-case-of-familial-dysalbuminemic-hyperthyroxinemia-fdh-in-japan-fdh-as-a-possible-differential-diagnosis-of-syndrome-of-inappropriate-secretion-of-thyroid-stimulating-hormone-sitsh
#9
Sakiko Kobayashi, Jaeduk Yoshimura Noh, Taeko Shimizu, Tomoaki Sato, Isao Kurihara, Kiminori Sugino, Hiroshi Itoh, Koichi Ito
Familial dysalbuminemic hyperthyroxinemia (FDH) is an autosomal dominant condition and is the most commonly inherited euthyroid hyperthyroxinemia in Caucasians. However, it is extremely rare in Asian populations. A 30-year-old Japanese woman, who was incidentally found to have apparent thyroid dysfunction, was admitted to our hospital in 2004. She had extremely elevated serum free thyroxine (FT4), moderately elevated free triiodothyronine (FT3), and normal thyroid-stimulating hormone (TSH). Clinical thyroid examination revealed no abnormalities other than small goiter...
November 30, 2016: Endocrine Journal
https://www.readbyqxmd.com/read/27903512/thyroid-hormone-stimulated-increases-in-pgc-1%C3%AE-and-ucp2-promote-life-history-specific-endocrine-changes-and-maintain-a-lipid-based-metabolism
#10
Bridget Martinez, José G Soñanez-Organis, Jose A Godoy-Lugo, Lillian Horin, Daniel E Crocker, Rudy M Ortiz
Thyroid hormones (TH) regulate metabolism, but are typically suppressed during times of stressful physiological conditions, including fasting. Interestingly, prolonged fasting in northern elephant seal pups is associated with reliance on a lipid-based metabolism and increased levels of circulating thyroid hormones that are partially attributed to active secretion as opposed to reduced clearance. This apparent paradox is coupled with complementary increases in cellular TH-mediated activity suggesting that in mammals naturally adapted to prolonged fasting TH are necessary to support metabolism...
November 30, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27902975/timing-of-hormone-withdrawal-in-children-undergoing-131i-whole-body-scans-for-thyroid-cancer
#11
Sophie Turpin, Raymond Lambert, Cheri Deal
BACKGROUND: Little objective pediatric data exist to guide the optimal time needed to achieve thyroid-stimulating hormone (TSH) levels ≥30 μIU/mL prior to performing 131I or 123I whole-body scan (WBS) imaging in children with thyroid cancer in the post-thyroidectomy period or after hormone discontinuation. METHODS: Retrospective study of patients aged 5-19 years who underwent WBS. Patient data collection included type and duration of withdrawal (liothyronine [L-T3], levothyroxine [L-T4], or post-thyroidectomy status without hormonal replacement) and TSH measured prior to WBS (level and timing)...
December 1, 2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27902923/kisspeptin-expression-is-decreased-in-the-arcuate-nucleus-of-hypothyroid-female-rats-with-irregular-estrus-cycles
#12
Yuji Tomori, Ken Takumi, Norio Iijima, Shinro Takai, Hitoshi Ozawa
Insufficiency of thyroid hormones inhibits gonadotropin release and results in dysregulation of reproductive function, although the precise mechanism of this disrupted gonadotropin secretion remains unclear. Kisspeptin is a neuropeptide that strongly stimulates gonadotropin secretion and plays an important role in reproductive function. To examine the involvement of kisspeptin in the dysregulation of gonadotropin secretion in hypothyroidism, we investigated Kiss1 mRNA expression and kisspeptin immunoreactivity in the hypothalamus of female rats treated with propylthiouracil (PTU)...
November 27, 2016: Neuroscience Research
https://www.readbyqxmd.com/read/27902601/time-course-of-graves-orbitopathy-after-total-thyroidectomy-and-radioiodine-therapy-for-thyroid-cancer
#13
Camille Louvet, Annamaria De Bellis, Bruno Pereira, Claire Bournaud, Antony Kelly, Salwan Maqdasy, Beatrice Roche, Francoise Desbiez, Francoise Borson-Chazot, Igor Tauveron, Marie Batisse-Lignier
The risk of cancer is relatively higher in Graves' patients presenting simultaneously with thyroid nodules. Radioiodine (RAI) therapy recommended in high-risk differentiated thyroid carcinoma may be associated with worsening of a pre-existing Graves' orbitopathy (GO) or developing a new onset. The impact of RAI therapy in patients with differentiated thyroid cancer on the course of a pre-exisiting GO has not been specifically investigated.The aim of this study is to assess the influence of RAI treatment administered for differentiated thyroid cancer on the course of a pre-existing GO...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27902589/serum-thyroglobulin-reference-intervals-in-regions-with-adequate-and-more-than-adequate-iodine-intake
#14
Zhaojun Wang, Hanyi Zhang, Xiaowen Zhang, Jie Sun, Cheng Han, Chenyan Li, Yongze Li, Xiaochun Teng, Chenling Fan, Aihua Liu, Zhongyan Shan, Chao Liu, Jianping Weng, Weiping Teng
The purpose of this study was to establish normal thyroglobulin (Tg) reference intervals (RIs) in regions with adequate and more than adequate iodine intake according to the National Academy of Clinical Biochemistry (NACB) guidelines and to investigate the relationships between Tg and other factors.A total of 1317 thyroid disease-free adult subjects (578 men, 739 nonpregnant women) from 2 cities (Guangzhou and Nanjing) were enrolled in this retrospective, observational study. Each subject completed a questionnaire and underwent physical and ultrasonic examination...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27901447/multivariate-analysis-of-thyrotropin-in-preterm-newborns-based-on-adequacy-of-weight-for-gestational-age
#15
Vicente María Bosch-Giménez, Antonio Palazón-Bru, Álvaro Blasco-Barbero, Mercedes Juste-Ruiz, María Mercedes Rizo-Baeza, Ernesto Cortés-Castell
BACKGROUND: Different and conflicting data have been published concerning thyroid-stimulating hormone (TSH) levels among small-for-gestational-age (SGA) and appropriate-for-gestational-age (AGA) newborns. The hypothesis of our study was that SGA preterm infants have higher TSH levels than those who are not underweight. METHODS: This cross-sectional study analysed the TSH levels of all preterm newborns with a negative congenital hypothyroidism screening result (TSH<7...
November 30, 2016: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/27901182/does-insulin-resistance-increase-thyroid-volume-in-patients-with-polycystic-ovary-syndrome
#16
Murat Sahin, Didem Demircioglu, Ayten Oguz, Dilek Tuzun, Mehmet Akif Sarica, Elif Inanc, Kamile Gul
Objective: To investigate the effect of gonadotropin, sex hormone levels and insulin resistance (IR) on thyroid functions and thyroid volume (TV) in polycystic ovary syndrome (PCOS). Subjects and methods: 69 new diagnosed PCOS patients (age 24.82 ± 6.17) and 56 healthy control female (age 26.69 ± 5.25) were involved to the study. Fasting plasma glucose, lipid profile, insulin, thyroid stimulating hormone (TSH), free thyroxine (fT4), estradiol (E2), luteinizing hormone (LH), follicle stimulating hormone levels and urine iodine were measured in all participants...
November 24, 2016: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27899788/serum-lipid-transfer-proteins-in-hypothyreotic-patients-are-inversely-correlated-with-thyroid-stimulating-hormone-tsh-levels
#17
Anna Skoczyńska, Anna Wojakowska, Barbara Turczyn, Katarzyna Zatońska, Maria Wołyniec, Natalia Rogala, Andrzej Szuba, Grażyna Bednarek-Tupikowska
BACKGROUND Plasma cholesteryl ester transfer protein (CETP) activity is often decreased in patients with hypothyroidism, whereas less is known about the phospholipid transfer protein (PLTP). We aimed to evaluate simultaneously serum CETP and PLTP activity in patients diagnosed with hypothyroidism. MATERIAL AND METHODS The selection criteria for control group members (without thyroid dysfunction) in this case to case study were levels of total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol (HDL-C), and triglycerides similar to those in study group patients (101 patients diagnosed with hypothyroidism)...
November 30, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27895620/excessive-cytosolic-dna-fragments-as-a-potential-trigger-of-graves-disease-an-encrypted-message-sent-by-animal-models
#18
REVIEW
Yuqian Luo, Aya Yoshihara, Kenzaburo Oda, Yuko Ishido, Koichi Suzuki
Graves' hyperthyroidism is caused by autoantibodies directed against the thyroid-stimulating hormone receptor (TSHR) that mimic the action of TSH. The establishment of Graves' hyperthyroidism in experimental animals has proven to be an important approach to dissect the mechanisms of self-tolerance breakdown that lead to the production of thyroid-stimulating TSHR autoantibodies (TSAbs). "Shimojo's model" was the first successful Graves' animal model, wherein immunization with fibroblasts cells expressing TSHR and a major histocompatibility complex (MHC) class II molecule, but not either alone, induced TSAb production in AKR/N (H-2(k)) mice...
2016: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/27894163/feature-of-amenorrhea-in-postoperative-tamoxifen-users-with-breast-cancer
#19
Hoon Kim, Wonshik Han, Seung Yup Ku, Chang Suk Suh, Seok Hyun Kim, Young Min Choi
OBJECTIVE: Tamoxifen has been used to prevent the recurrence of breast cancer. However, tamoxifen-users frequently experience amenorrhea and it can be confused from that caused by other hormonal abnormalities. In amenorrheic patients without breast cancer, clinicians usually measure the sex hormone levels that are known to be associated with ovarian or menstrual function. This study aimed to investigate the feature of female sex hormones in premenopausal breast cancer patients undergoing tamoxifen treatment...
October 27, 2016: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/27892665/thyroid-function-after-postoperative-radiation-therapy-in-patients-with-breast-cancer
#20
Edyta Wolny-Rokicka, Andrzej Tukiendorf, Jerzy Wydmański, Danuta Roszkowska, Bogusław Staniul, Agnieszka Zembroń-Łacny
Objective: The aim of this study was to assess thyroid function in breast cancer patients exposed to therapeutic external beam radiation. The focus was on possible progressive changes and any relationships between the incidence of primary hypothyroidism, the time required to become hypothyroid, and factors such as chemotherapy, hormonotherapy and immunotherapy. Materials and Methods: Seventy females undergoing 3D conformal and IMRT radiation therapy for breast cancers were enrolled in a non-randomized prospective study...
January 10, 2016: Asian Pacific Journal of Cancer Prevention: APJCP
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