Active clinical trials for "Hashimoto Disease"

Systemic sclerosis (SSc) is a systemic disease that involves various organs such as the skin, kidneys, gastrointestinal tract and lungs. Dysfunction of the thyroid gland is prevalent in these patients and may be related to thyroid fibrosis or to thyroid autoimmune disease, i.e. hashimoto's thyroiditis. Thyroid nodules are prevalent in the general population, although some reports suggest they might be more frequent in patients with SSc. Hashimoto's thyroiditis, by itself, carries a higher risk for thyroid nodules and thyroid cancer. The aim of the study:To characterize sonographycally the thyroid gland of patients with SSc with and without Hashimoto's disease

The hypothesis of this project is that specific genes can be identified that contribute to genetic susceptibility to autoimmune thyroid disease (AITD) in different populations. The specific aim of this project is carry out one or more genomewide association studies (GWAS) to map and ultimately identify genes that confer susceptibility to AITD. AITD consists principally of Hashimoto's Thyroiditis (HT) and Graves' Disease (GD), characterized clinically generally by hypothyroidism and hyperthyroidism, respectively. Both HT and GD are autoimmune diseases characterized by infiltration of the thyroid by T and B cells that are reactive with thyroid antigens and by the production of thyroid autoantibodies (TAB). While there is some evidence that there may be genes specific to either GD or HT, other genes appear to be common to both, and some genes may furthermore be in common to susceptibility to other autoimmune diseases. Genes known to play a role in AITD include HLA, CTLA4, thyroglobulin (TG), THSR, and CD40, PTPN2, and PTPN22, several of which are also involved in susceptibility to other autoimmune diseases. All of these genes interact in a complex manner that has yet to be understood. Furthermore, it seems clear that relatively few of the genes involved in susceptibility to AITD have thus far been discovered.

Hashimoto Thyroiditis (HT) and Graves Disease (GD) are known to be caused by abnormal immune response against self cells and tissues. Epigenetics is a novel field of biology studying the mechanisms by which the environment interacts with the genotype to produce a variety of phenotypes through modifications to chromatin that do not directly alter the DNA sequence. A very limited number of epigenetic studies have been published in patients with HT and GD so far. Therefore, the purpose of this study is to analyze DNA methylation status in White Blood Cells (WBCs) within the promoter regions of genomic sites that have been previously identified as susceptibility loci or sites for autoimmune thyroid disease, such as the CD40L, FOXP3, CTLA4, PTPN22, IL2RA, FCRL3 and HLADRB1 genes.

Thyroid cancer (TC) is the most common endocrine malignancy. The association between inflammation and cancer is well established but the association between thyroiditis (inflammation of thyroid gland) especially Hashimoto's thyroiditis (HT) and thyroid cancer remains controversial. Chronic inflammation leads to a repeated cycle of cellular damage and subsequent healing which contributes to inappropriate cell proliferation and subsequent neoplastic transformation. One of the most common forms of Thyroiditis is Hashimoto's thyroiditis which is a chronic autoimmune inflammatory disease affects almost 5% of the population and is more common in women. For the first time, Dailey and Lindsay reported in 1955 an increased association between Hashimoto's Thyroiditis (HT) and thyroid cancer. They reported 35 thyroid cancers in 278 patients with Hashimoto's Thyroiditis, a prevalence of 17.7% which they considered higher than the general population . Since then, various studies have been done, some studies have reported an increased risk of malignancy in Hashimoto's thyroiditis; others have failed to find an association. Most of the studies that have been done to identify the association between Hashimoto's thyroiditis and thyroid cancer are retrospective. The purpose of this pilot case-control study is to identify the association of Hashimoto's thyroiditis and thyroid cancer, to determine if the presence of Hashimoto's thyroiditis has any affect on the complication of thyroidectomy and prognostic factors of thyroid cancer.

Autoimmune thyroiditis and goitres are frequent pathologies.

Thyroid hormone (TH) and fibroblast growth factor 21 (FGF-21) are reported to share common metabolic pathways and underlying mechanisms in terms of energy balance, thus affecting both thermogenesis and resting metabolic rate (RMR). Although FGF-21 levels has been studied in children and adolescents regarding obesity, body composition and insulin resistance, data in children and adolescents diagnosed with Hashimoto's thyroiditis are lacking. Therefore, the purpose of this study is to measure the RMR in children and adolescents diagnosed with clinical hypothyroidism due to thyroiditis Hashimoto just before starting levothyroxine treatment and after six months achieving an euthyroid state, and to detect any association between serum FGF-21 levels and RMR.

Thyroid hormone autoantibodies(THAA) in serum can Interfere radioimmunoassay for the determination of free thyroid hormones. Thyroid function test plays a key role in the diagnosis and treatment of autoimmune thyroid disease (AITD), and abnormal examination results in misdiagnosis and mistreatment. At present, the epidemiological results of THAA in AITD are inconsistent, and the pathogenesis has not been clarified. However, there is no relevant research on THAA in China. This project intends to collect AITD patients and healthy people, detecting THAA, at the same time testing thyroid function and thyroid autoantibodies, definiting positive rate of THAA in AITD patients, observing the effect of common therapeutic drugs for AITD on THAA, investigating the rule of THAA influencing thyroid function test results .This project will provide the basis and method for how to effectively avoid THAA interfering with thyroid function test.

The management of thyroid function in pregnancy has been object of several guidelines in the last years. Normal thyroid function reduces prenatal and post-natal risks and gestational complaints. Trimester specific reference values of thyroid hormones and thyroid stimulating hormone (TSH) are available for selected geographic population but its are not yet are available in our country. Hashimoto's thyroiditis (HT) is the most frequent autoimmune thyroid disease which can induce thyroid dysfunction, mainly sub-clinical hypothyroidism. Due to the large incidence in women HT and its potential link with thyroid dysfunction this disease could be search and monitored before pregnancy. Anyway a strong recommendation is to test TSH levels in all patients seeking pregnancy at risk for thyroid dysfunction for a history or current symptoms/signs of thyroid dysfunction, known positivity od thyroid autoimmunity or goiter, a history of neck radiation, age >30 years, diabetes mellitus, previous infertility or pregnant loss, morbid obesity, living in area of moderate-severe iodine deficiency or recent administration of drugs/substance interfering with thyroid function.

Herpes Simplex Virus encephalitis is the most common infectious encephalitis, with an estimated annual incidence of 1 / 250,000 to 1 / 500,000 in industrialized countries. Despite a widely used antiviral treatment, the prognosis remains poor with a mortality of 5 to 20% and a considerable morbidity rate. One of the contributing factors of bad prognosis is the development of encephalitis mediated by autoantibodies, most often directed against NMDA receptors, in the weeks following viral encephalitis. The description of this pathology is recent, the pathophysiology of this process remains poorly understood, and the management of these patients is not yet codified.

Autoimmune thyroiditis (AITD) mainly includes Hashimoto's thyroiditis (HT) and Grave's disease (GD). Studies have shown that autoimmune thyroiditis is closely related to microbial disorders such as autoimmune thyroiditis However, there is no report on the relationship between oral microecology and autoimmune thyroiditis. Therefore, our group will study the correlation between oral microbiota and AITD.