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https://www.readbyqxmd.com/read/28440200/effect-of-halofuginone-on-the-pathogenesis-of-autoimmune-thyroid-disease-in-different-mice-models
#1
Xin Hou, Jin Zhou, Rong Yang, Shanshan Liu, Mei Bi, Tong Liu, Chenling Fan, Haixia Guan, Yushu Li, Zhongyan Shan, Weiping Teng
OBJECTIVE: Our objectives were to investigate the therapeutic effect of halofuginone (HF) in the treatment of autoimmune thyroid diseases (AITDs) and explore its underlying mechanism of action. METHODS: The Graves' disease (GD) model was generated by immunizing female BALB/c mice with adenovirus expressing the TSH receptor A subunit (Ad-TSHR289). The Ad-TSHRA+HF and Ad-TSHRA+DMSO groups were injected intraperitoneally with HF or the vehicle control (DMSO), respectively...
April 23, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28439882/prevalence-and-clinical-relevance-of-tsh-receptor-blocking-antibodies-in-autoimmune-thyroid-disease
#2
T Diana, J Krause, P D Olivo, J König, M Kanitz, B Decallonne, G J Kahaly
OBJECTIVE: The prevalence and clinical relevance of TSH-receptor (TSHR) blocking antibodies (TBAb) in patients with autoimmune thyroid disease (AITD) was investigated. METHODS: Serum TBAb were measured with a reporter gene bioassay using chinese hamster ovary cells. Blocking activity was defined as percentage inhibition of luciferase expression relative to induction with bovine TSH alone (cut-off 40% inhibition). All samples were measured for TSHR stimulatory Ab (TSAb) and TSHR binding inhibiting immunoglobulins (TBII)...
April 25, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28439272/the-emerging-role-of-epigenetics-in-autoimmune-thyroid-diseases
#3
REVIEW
Bin Wang, Xiaoqing Shao, Ronghua Song, Donghua Xu, Jin-An Zhang
Autoimmune thyroid diseases (AITD) are a group of both B cell- and T cell-mediated organ-specific autoimmune diseases. Graves' disease and Hashimoto thyroiditis are the two main clinical presentations of AITD. Both genetic and environmental factors have important roles in the development of AITD. Epigenetics have been considered to exert key roles in integrating those genetic and environmental factors, and epigenetic modifications caused by environmental factors may drive genetically susceptibility individuals to develop AITD...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28437437/use-of-short-interfering-rna-delivered-by-cationic-liposomes-to-enable-efficient-down-regulation-of-ptpn22-gene-in-human-t-lymphocytes
#4
Valentina Perri, Marsha Pellegrino, Francesca Ceccacci, Anita Scipioni, Stefania Petrini, Elena Gianchecchi, Anna Lo Russo, Serena De Santis, Giovanna Mancini, Alessandra Fierabracci
Type 1 diabetes and thyroid disease are T cell-dependent autoimmune endocrinopathies. The standard substitutive administration of the deficient hormones does not halt the autoimmune process; therefore, development of immunotherapies aiming to preserve the residual hormonal cells, is of crucial importance. PTPN22 C1858T mutation encoding for the R620W lymphoid tyrosine phosphatase variant, plays a potential pathophysiological role in autoimmunity. The PTPN22 encoded protein Lyp is a negative regulator of T cell antigen receptor signaling; R620W variant, leading to a gain of function with paradoxical reduced T cell activation, may represent a valid therapeutic target...
2017: PloS One
https://www.readbyqxmd.com/read/28435274/hashimoto-encephalopathy-with-high-plasma-monoamine-metabolite-levels-a-case-report
#5
Sho Horikoshi, Itaru Miura, Yasuto Kunii, Satoko Asano, Keiko Kanno-Nozaki, Hirobumi Mashiko, Hirooki Yabe
Hashimoto encephalopathy (HE) is believed to be an immune-mediated disorder associated with Hashimoto's thyroiditis. It was suggested that neuropsychiatric symptoms, the presence of antithyroid antibody, and good response to steroids were important for the diagnosis of HE. It has been reported that homovanillic acid (HVA) and 3-methoxy-4-hydroxyphenylglycol (MHPG), which are monoamine metabolites of dopamine and noradrenaline, respectively, are the possible biomarkers of neuropsychiatric diseases. We report a case of Hashimoto encephalopathy, in which we longitudinally measured the plasma levels of monoamine metabolites...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28434922/association-of-autoimmune-thyroiditis-and-celiac-disease-with-juvenile-polyposis-due-to-10q23-1q23-31-deletion-potential-role-of-pi3k-akt-pathway-dysregulation
#6
Federica Guaraldi, Giovanni Di Nardo, Luigi Tarani, Luca Bertelli, Francesco Claudio Susca, Rosanna Bagnulo, Nicoletta Resta
Juvenile Polyposis (JP) is a rare hereditary condition characterized by diffuse hamartomatous gastrointestinal polyposis, associated with a significantly increased risk of neoplastic transformation. Most of the cases are caused by SMAD and BMPR1A mutations, while 10q23 microdeletions, encompassing both PTEN and BMPR1A oncogenes, are extremely rare, typically associated with more aggressive JP, and extraintestinal features overlapping with PTEN Hamartoma Tumor Syndrome. We present the first case of a young female with multiple autoimmune disorders (i...
April 18, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28431992/genomic-answers-for-recurrent-spontaneous-abortion-in-saudi-arabia-an-array-comparative-genomic-hybridization-approach
#7
Sajjad Karim, Hasan Salleh Jamal, Abdullraheem Rouzi, Mohammed Salleh M Ardawi, Hans-Juergen Schulten, Zeenat Mirza, Nuha A Alansari, Maha M Al-Quaiti, Heba Abusamra, Muhammad Imran Naseer, Rola Turki, Adeel Gulzar Chaudhary, Mamdooh Gari, Adel Mohammed Abuzenadah, Mohammed Hussain Al-Qhatani
To study the genomics/genetic factors associated with recurrent spontaneous abortion (RSA), as ∼50% of RSA are unexplained. However, chromosome abnormalities have been reported to play major role in RSA. We performed whole genome array-CGH based genomic analysis of forty four Saudi RSA patients to identify potential molecular and chromosomal abnormalities. We identified a total of 845 alterations, usually not detected by classic cytogenetic methods, in different genomic regions using a cut off value of -0...
April 18, 2017: Reproductive Biology
https://www.readbyqxmd.com/read/28431875/protein-oxidation-and-autoantibodies-reactivity-against-malondialdehyde-and-hydrogen-peroxide-modified-thyroid-antigens-in-plasma-of-patients-with-graves-disease-and-hashimoto-thyroiditis
#8
Malek Mseddi, Riadh Ben Mansour, Bochra Gargouri, Fatma Mnif, Samir El Ghawi, Boutheina Hammami, Abdelmonem Ghorbel, Mohamed Abid, Saloua Lassoued
The aim of this study was first to investigate the oxidative proteins modifications in the plasma of both autoimmune thyroid diseases (AITD), Graves' disease (GD) and Hashimoto Thyroiditis (HT). Then, the impact of these oxidative modifications on immune response was evaluated by measuring the reactivity of patients' autoantibodies against malondialdéhyde (MDA) and Hydrogen peroxide (H2O2) modified thyroid antigens (T.Ag) in comparison to native ones. Carbonyl and thiol groups, and MDA-protein adducts were first assessed among 74 AITD patients and 65 healthy controls...
April 18, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28428670/thyroid-autoimmunity-in-patients-with-chronic-urticaria
#9
Emina Kasumagic-Halilovic, Nermina Beslic, Nermina Ovcina-Kurtovic
INTRODUCTION: chronic urticaria (CU) is a skin disorder characterized by transient, pruritic wheals persisting for longer than 6 weeks. The etiopathogenesis of the disease is still unclear, but there is evidence that autoimmunity and endocrine dysfunction may be involved. AIM: the aim of this study was to determine whether chronic urticaria is statistically associated with thyroid autoimmunity. PATIENTS AND METHODS: in a prospective case-control study, we compared the frequency of thyroid auto-antibodies (thyroglobulin antibody, anti-Tg and thyroid peroxidase antibody, anti-TPO) in 70 patients with chronic urticaria and in 70 healthy volunteers...
February 2017: Medical Archives
https://www.readbyqxmd.com/read/28421036/genetics-of-thyroid-stimulating-hormone-receptor-relevance-for-autoimmune-thyroid-disease
#10
REVIEW
Mihaela Stefan, Larissa C Faustino
Production of thyroid-stimulating hormone receptor (TSHR) antibodies represents the hallmark of Graves' disease (GD) pathogenesis. Thus, for more than two decades the TSHR gene has been at the center of studies intended to elucidate its contribution to disease pathology. The advent of genome-wide association technology allowed to establish a strong association of the TSHR gene with GD. Subsequent fine-mapping studies narrowed the disease-susceptibility region to a 40 kb sequence in intron 1, where at least five GD-associated SNPs in tight linkage disequilibrium were identified...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28417627/a-retrospective-study-on-the-association-between-thyroid-autoantibodies-with-%C3%AE-2-glycoprotein-and-cardiolipin-antibodies-in-recurrent-miscarriage
#11
Regina Promberger, Katharina Walch, Rudolf Seemann, Sophie Pils, Johannes Ott
Etiologic factors for recurrent miscarriage (RM) include autoimmune diseases, the most frequently antiphospholipid syndrome and thyroiditis. Some women who suffer from RM might also have an altered immune system. We aimed to evaluate possible associations between anti-thyroid and anti-phospholipid antibodies in women with RM. In a retrospective case series 1 on 156 women with RM, major outcome parameters were antibodies against cardiolipin, β2-glycoprotein I, thyreoperoxidase (TPO-Ab), and thyroglobulin (TG-Ab)...
February 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28417080/applying-a-systems-approach-to-thyroid-physiology-looking-at-the-whole-with-a-mitochondrial-perspective-instead-of-judging-single-tsh-values-or-why-we-should-know-more-about-mitochondria-to-understand-metabolism
#12
REVIEW
Roy Moncayo, Helga Moncayo
Classical thinking in endocrine physiology squeezes our diagnostic handling into a simple negative feedback mechanism with a controller and a controlled variable. In the case of the thyroid this is reduced to TSH and fT3 and fT4, respectively. The setting of this tight notion has no free space for any additions. In this paper we want to challenge this model of limited application by proposing a construct based on a systems approach departing from two basic considerations. In first place since the majority of cases of thyroid disease develop and appear during life it has to be considered as an acquired condition...
June 2017: BBA Clinical
https://www.readbyqxmd.com/read/28414788/patients-with-subclinical-hypothyroidism-before-20-weeks-of-pregnancy-have-a-higher-risk-of-miscarriage-a-systematic-review-and-meta-analysis
#13
Yibing Zhang, Haoyu Wang, Xifeng Pan, Weiping Teng, Zhongyan Shan
OBJECTIVE: To evaluate the relationship between subclinical hypothyroidism (SCH) and the risk of miscarriage before 20 weeks of pregnancy. METHODS: Literature databases were searched, including the PubMed, Web of Science, Embase and Cochrane databases, from January 1, 1980, to December 31, 2015. The following search terms were used: subclinical hypothyroidism, hypothyroidism, thyroid dysfunction, thyroid hypofunction, subclinical thyroid disease, thyroid dysfunction, pregnancy loss, abortion and miscarriage...
2017: PloS One
https://www.readbyqxmd.com/read/28413469/repairing-effects-of-icam-1-expressing-mesenchymal-stem-cells-in-mice-with-autoimmune-thyroiditis
#14
Shifeng Ma, Xiuhui Chen, Lihui Wang, Ying Wei, Yongqing Ni, Yanan Chu, Yuanlin Liu, Heng Zhu, Rongxiu Zheng, Yi Zhang
The aim of the present study was to determine the repairing effects of intercellular adhesion molecule (ICAM)-1-expressing mesenchymal stem cells (MSCs) in mice with autoimmune thyroiditis. Following induction of an experimental autoimmune thyroiditis (EAT) model, mice were randomly divided into the following groups (n=10 each): i) Normal control; and experimental groups that were subject to EAT induction, including ii) EAT model; and iii) primary MSC; iv) C3H10T1/2/MSC; v) C3H10T1/2-MIGR1/MSC; and vi) C3H10T1/2-MIGR1-ICAM-1/MSC, which were all administered the relevant cells...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28413173/25-hydroxyvitamin-d-serum-level-in-hashimoto-s-thyroiditis-but-not-graves-disease-is-relatively-deficient
#15
Wencai Ke, Tiange Sun, Yanan Zhang, Leqi He, Qiang Wu, Jun Liu, Bingbing Zha
Vitamin D is a modulator of both the innate and adaptive immune system. As vitamin D deficiency was a risk factor for some autoimmune diseases, we aimed to evaluate the serum vitamin D levels in autoimmune thyroid diseases (AITD) including Graves’ disease (GD) and Hashimoto’s thyroiditis (HT) and investigated the association between serum vitamin D levels and AITD. 175 AITD patients including 51 GD, 61 euthyroid HT (mild HT), 63 euthyroid HT patients with hypothyroidism receiving hormone therapy (treated HT) were recruited from the outpatient department...
April 11, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28407273/comorbidity-of-chronic-spontaneous-urticaria-and-autoimmune-thyroid-diseases-a-systematic-review
#16
REVIEW
Pavel Kolkhir, Martin Metz, Sabine Altrichter, Marcus Maurer
Chronic spontaneous urticaria (CSU) patients are widely held to often have other autoimmune disorders, including autoimmune thyroid disease. Here, we systematically evaluated the literature on the prevalence of thyroid autoimmunity in CSU and vice versa. There is a strong link between CSU and elevated levels of IgG anti-thyroid autoantibodies (AAbs), with most of a large number of studies reporting rates of ≥10%. Levels of IgG against thyroid peroxidase (TPO) are more often elevated in CSU than those of other IgG anti-thyroid AAbs (strong evidence)...
April 13, 2017: Allergy
https://www.readbyqxmd.com/read/28406057/subclinical-hypothyroidism-should-we-treat
#17
Christopher Redford, Bijay Vaidya
Subclinical hypothyroidism (also known as compensated hypothyroidism or mild hypothyroidism) is a condition associated with a raised serum concentration of thyroid stimulating hormone (TSH) but a normal serum free thyroxine (FT4). It is common, affecting about 10% of women above the age of 55 years. Autoimmunity is the commonest cause of subclinical hypothyroidism. About 2.5% of patients with subclinical hypothyroidism progress to clinically overt hypothyroidism each year; the rate of progression is higher in patients with thyroid autoantibodies and higher thyroid stimulating hormone levels...
January 1, 2017: Post Reproductive Health
https://www.readbyqxmd.com/read/28405484/thyroid-associated-ophthalmopathy
#18
REVIEW
Esra Şahlı, Kaan Gündüz
Thyroid-associated ophthalmopathy is the most frequent extrathyroidal involvement of Graves' disease but it sometimes occurs in euthyroid or hypothyroid patients. Thyroid-associated ophthalmopathy is an autoimmune disorder, but its pathogenesis is not completely understood. Autoimmunity against putative antigens shared by the thyroid and the orbit plays a role in the pathogenesis of disease. There is an increased volume of extraocular muscles, orbital connective and adipose tissues. Clinical findings of thyroid-associated ophthalmopathy are soft tissue involvement, eyelid retraction, proptosis, compressive optic neuropathy, and restrictive myopathy...
April 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28405320/distinct-metaplastic-and-inflammatory-phenotypes-in-autoimmune-and-adenocarcinoma-associated-chronic-atrophic-gastritis
#19
Sangho Jeong, Eunyoung Choi, Christine P Petersen, Joseph T Roland, Alessandro Federico, Rossana Ippolito, Francesco P D'Armiento, Gerardo Nardone, Osamu Nagano, Hideyuki Saya, Marco Romano, James R Goldenring
BACKGROUND: Autoimmune gastritis (AIG) and adenocarcinoma-associated chronic atrophic gastritis (CAG) are both associated with oxyntic atrophy, but AIG patients demonstrate an increased risk of carcinoid tumors rather than the elevated risk of adenocarcinoma observed with CAG. We therefore sought to compare the characteristics of the metaplastic mucosa in AIG and CAG patients. METHODS: We examined markers for metaplasia (spasmolytic polypeptide expressing metaplasia (SPEM) and intestinal metaplasia) as well as proliferation (Ki67) and immune cell populations (neutrophils, macrophages, and eosinophils) in gastric sections from 16 female patients with autoimmune thyroiditis and AIG and 17 patients with CAG associated with gastric adenocarcinoma...
February 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28400827/effects-of-vitamin-d-deficiency-treatment-on-metabolic-markers-in-hashimoto-thyroiditis-patients
#20
Parichehr Vahabi Anaraki, Ashraf Aminorroaya, Massoud Amini, Awat Feizi, Bijan Iraj, Azamosadat Tabatabaei
BACKGROUND: The aim of the current trial was to investigate the effect of Vitamin D treatment on metabolic markers in people with Vitamin D deficiency and thyroid autoimmunity. MATERIALS AND METHODS: In this double-blind, randomized, placebo-controlled clinical trial, 65 Vitamin D deficient euthyroid or hypothyroid patients with positive TPO-Ab were enrolled. They randomly allocated into two groups to receive oral Vitamin D3 (50000 IU weekly) and placebo for 12 weeks...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
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