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Related Concept Videos

Graves' Disease I: Introduction01:28

Graves' Disease I: Introduction

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Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactivity of the thyroid gland. It results from autoantibodies called thyroid-stimulating immunoglobulins (TSIs), which bind to thyroid-stimulating hormone (TSH) receptors, leading to overstimulation of hormone production and a hypermetabolic state.EtiologyAlthough considered idiopathic, Graves’ disease has well-established contributing factors. There is a strong genetic component, with increased prevalence...
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Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...
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Graves’ disease is an autoimmune disorder characterized by the production of thyroid-stimulating immunoglobulins (TSI) that activate TSH receptors, leading to excessive synthesis and release of thyroid hormones (T3 and T4) and resulting in hyperthyroidism.Among all causes of hyperthyroidism, Graves’ disease is the most common and can happen at any age, though it is more frequent in women. It produces a hypermetabolic state with features such as weight loss, tachycardia, tremor,...
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Autoimmune Disorders01:29

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Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
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Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Related Experiment Video

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Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
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[CXCR3 and CXCL10 in autoimmune thyroiditis].

I Ruffilli1, S M Ferrari1, M Colaci2

  • 1Dipartimento di Medicina Clinica e Sperimentale, Università di Pisa, Pisa.

La Clinica Terapeutica
|July 8, 2014
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Chemokine CXCL10 (also IP-10) is linked to autoimmune thyroiditis (AT). Higher CXCL10 levels in AT patients indicate more severe inflammation and potential hypothyroidism, suggesting CXCL10 as a therapeutic target.

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Area of Science:

  • Immunology
  • Endocrinology
  • Molecular Biology

Background:

  • Chemokine (C-X-C motif) ligand 10 (CXCL10), induced by interferon-gamma (IFN-γ), binds to chemokine (C-X-C motif) receptor 3 (CXCR3).
  • CXCL10 and CXCR3 are implicated in the pathogenesis of various autoimmune diseases.
  • CXCL10 secretion by immune cells and thyrocytes is IFN-γ dependent, marking a T helper 1 immune response.

Purpose of the Study:

  • To investigate the role of CXCL10 in autoimmune thyroiditis (AT).
  • To determine if CXCL10 levels correlate with disease severity and hypothyroidism in AT patients.

Main Methods:

  • Measurement of CXCL10 levels in peripheral fluids of AT patients.
  • Correlation analysis with ultrasonographic patterns and thyroid function.

Main Results:

  • Elevated circulating CXCL10 levels were observed in AT patients.
  • Higher CXCL10 levels were associated with hypoechoic ultrasonographic patterns and hypothyroidism.
  • These findings suggest CXCL10 indicates a more aggressive inflammatory response in the thyroid.

Conclusions:

  • CXCL10 may serve as a biomarker for severe inflammation and thyroid destruction in AT.
  • CXCL10 warrants further investigation as a potential therapeutic target for AT.