Active clinical trials for "Hypothyroidism"

Resistance to thyrotropin (RTSH) is a condition of impaired responsiveness of the thyroid gland to TSH, characterized by elevated TSH, low or normal thyroid hormone levels, and hypoplastic or normal-sized thyroid gland. The aim of the present study was to evaluate the clinical course over time,the genotype-phenotype association and the frequency of two different TSH-receptor (TSHR) mutations in a highly consanguineous population of the town of Um-El-Fahem.

The investigators aim to study whether hypothyroidism negatively affects Brown adipose tissue (BAT) function in humans and whether BAT function can be restored to normal by thyroid hormone supplementation.

Background: Autoimmune hypothyroidism has been regarded as the most common cause of primary hypothyroidism in iodine sufficient area and has relationship with excess iodine induced hypothyroidism. However, non-immune related hypothyroidism and its relationship with excess iodine have been rarely evaluated. Objective: Therefore, the investigators planned to calculate proportion of non-immune related hypothyroidism and relationship with iodine intake using nationwide data from Korea National Health and Nutrition Examination Survey (KNHANES) 2013-2015. Design: Korea National Health and Nutrition Examination Survey VI (2013 to 2015) - The national data - which is the government designated statistics (Approval No. 117002 ) of South Korea based on the Article 17 of the National Health Promotion Act - were used. The survey was approved by the Institutional Review Board of the Korea Centers for Disease Control and Prevention, and provides only non-identified measures for academic research purposes. The participants who were examined for thyroid stimulating hormone, free thyroxine, thyroid peroxidase antibody (TPO Ab), and urine iodine concentration (UIC) were included. The proportion of immune related and non-immune related hypothyroidism was evaluated. Demographic variables and severity of hypothyroidism were compared between the two groups. To analyze iodine effect on hypothyroidism in TPO Ab positive or negative population, prevalence of hypothyroidism were assessed in each TPO Ab negative and positive population according to UIC subgroups. This study protocol was approved by IRB of SMC (2017-05-149).

This is a prospective observational cohort study. Monitoring continuous biosignals using wearable devices in thyroid cancer patients who are planned to withdraw their levothyroxine for radioactive iodine therapy. Through this, bio signals can be collected in the subjects in hypothyroid status. Physical activity, heart rate, and sleep data will be collected during the study period.

The objective of this study was to assess the changes in thyroid hormones and its activity during CRRT in patients with Acute Kidney Injury.

Iodine 131 (131I） treatment on Graves disease and Graves ophthalmopathy relationship has always been the focus of debate. Majority view is that the current treatment does not increase 131I Graves ophthalmopathy, therefore,Graves disease associated with exophthalmos is not a contraindication of 131I treatment. While treatment with corticosteroids, a timely corrective measures to be effective in preventing Graves ophthalmopathy adverse effects. But the merger with severe proptosis in patients with Graves , especially infiltrative exophthalmos , the application of 131I treatment will induce or aggravate not yet reached consensus, so, the 131I treatment is still very careful , mainly due to plaque prospective study and visual assessment is not lack of uniform standards, and a variety of factors (including smoking, work status, and 131I treatment of thyroid doses, etc.) may also interfere or influence the ultimate effect of 131I on the Graves ophthalmopathy. In the view of this situation Graves disease patients with Graves ophthalmopathy could be 131I treatment or not, how to dose adjustments, and the use of which required treatment with systemic issues such as research, explore treatment exophthalmos reduction and mitigation of increased proptosis reasonable treatment of symptoms. To further promote the standardization of 131I treatment of Graves disease on basis.

The specific aim of this proposed pilot study is to compare two standardized processes (paper and electronic) to deliver a customized MedlinePlus health information prescription.

Long term follow-up of the patients with delayed TSH elevation or subclinical hypothyroidism has been seldom reported. The purpose of this study was to explore the diagnostic criteria for subclinical hypothyroidism and the initial dosage of L-thyroxine through long-term follow up for infants with subclinical hypothyroidism ，and evaluate the curative effect.

To examine the association of subclinical hypothyroidism and risk of myocardial infarction and stroke in a large prospective cohort of post-menopausal women.

This study is to prospectively investigate the incidence of hypothyroidism after postoperative radiotherapy and identify risk factors for development of hypothyroidism. Patients with breast cancer treated with surgery followed by radiotherapy is enrolled. Thyroid function was assessed at baseline and different times after radiotherapy. The radiation technique, thyroid dose parameters and hypothyroidism are prospective evaluated, and the dose-effect relationship is analyzed.