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Related Concept Videos

Graves Disease II: Pathophysiology01:24

Graves Disease II: Pathophysiology

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, and heat...
Graves' Disease I: Introduction01:28

Graves' Disease I: Introduction

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 in...
Hyperthyroidism II: Pathophysiology01:27

Hyperthyroidism II: Pathophysiology

Hyperthyroidism is a hypermetabolic state caused by elevated levels of thyroid hormones, triiodothyronine (T3) and thyroxine (T4). It results from dysregulation at the thyroid, pituitary, or immune system level and affects multiple organ systems.PathophysiologyThe most common cause of hyperthyroidism is Graves’ disease, an autoimmune disorder in which antibodies, specifically thyroid-stimulating antibodies (TSAb), a subtype of TSH receptor antibodies (TRAb), bind to and activate TSH receptors...
Hypothyroidism II: Pathophysiology01:23

Hypothyroidism II: Pathophysiology

Hypothyroidism is a disorder characterized by insufficient production of thyroid hormones, which regulate metabolism, energy balance, and multiple organ systems.TypesHypothyroidism is classified based on the level of dysfunction. Primary hypothyroidism results from intrinsic thyroid gland dysfunction, causing reduced hormone production despite normal or increased stimulation. Secondary hypothyroidism arises from inadequate thyroid-stimulating hormone (TSH) secretion by the pituitary. Tertiary...
Hyperthyroidism I: Introduction01:25

Hyperthyroidism I: Introduction

Hyperthyroidism is a type of thyrotoxicosis characterized by the thyroid gland's overproduction of the thyroid hormones triiodothyronine (T3) and thyroxine (T4). This hormone excess increases the basal metabolic rate and enhances sensitivity to catecholamines.DiagnosisDiagnosis is based on clinical features and biochemical testing. It typically shows suppressed thyroid-stimulating hormone (TSH) levels below 0.4 mIU/L, with elevated free T3 and/or T4. Additional tests, including thyroid...
Cytotoxic Edema: Pathophysiology01:21

Cytotoxic Edema: Pathophysiology

Cytotoxic edema is a form of cerebral edema characterized by intracellular swelling of neurons, astrocytes, and other glial cells. It develops when the mechanisms responsible for maintaining ionic gradients across the cell membrane become impaired. Under normal physiological conditions, the sodium–potassium ATPase actively transports sodium ions out of the cell and potassium ions into the cell, preserving osmotic balance and enabling electrical signaling. This pump requires a continuous supply...

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Related Experiment Video

Updated: May 12, 2026

Assessment of Vascular Function in Patients With Chronic Kidney Disease
08:50

Assessment of Vascular Function in Patients With Chronic Kidney Disease

Published on: June 16, 2014

Endothelial dysfunction in Graves' disease.

A Popławska-Kita1, M Szelachowska, A Modzelewska

  • 1Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland. annapoplawskakita@op.pl

Advances in Medical Sciences
|April 25, 2013
PubMed
Summary
This summary is machine-generated.

Graves' disease (GD) is linked to endothelium dysfunction (ED) with elevated cytokines like IL-6, IL-12, and IL-18. Early treatment of subclinical hyperthyroidism in GD is suggested due to these findings.

Related Experiment Videos

Last Updated: May 12, 2026

Assessment of Vascular Function in Patients With Chronic Kidney Disease
08:50

Assessment of Vascular Function in Patients With Chronic Kidney Disease

Published on: June 16, 2014

Area of Science:

  • Endocrinology
  • Immunology
  • Vascular Biology

Background:

  • Graves' disease (GD) is an autoimmune disorder causing hyperthyroidism via thyrotropin receptor autoantibodies.
  • Endothelial dysfunction (ED) is implicated in hyperthyroidism, but specific markers require further elucidation.
  • Soluble adhesion molecules and inflammatory cytokines are potential indicators of ED.

Purpose of the Study:

  • To assess serum levels of ICAM-1, VCAM-1, vWF, IL-6, IL-12, IL-18, fibrinogen, and CRP in GD patients.
  • To investigate the role of these markers in subclinical (SH) and overt hyperthyroidism (OH) as indicators of ED.
  • To determine if these markers can serve as indicators of GD activity.

Main Methods:

  • Study included 96 participants: 52 with GD and 44 healthy controls.
  • Patients were categorized into subclinical hyperthyroidism (SH), overt hyperthyroidism (OH), and control (CG) groups.
  • Serum levels of ICAM-1, VCAM-1, vWF, IL-6, IL-12, IL-18, fibrinogen, and CRP were measured.

Main Results:

  • GD patients exhibited significantly higher levels of IL-6, IL-12, IL-18, sVCAM-1, PAI-1, vWF, and fibrinogen compared to controls.
  • Patients with overt hyperthyroidism (OH) showed higher fibrinogen levels than those with subclinical hyperthyroidism (SH).
  • No significant differences in other measured parameters were observed between SH and OH groups.

Conclusions:

  • Endothelial dysfunction (ED) is present in both subclinical and overt hyperthyroidism in Graves' disease (GD).
  • Elevated IL-6, IL-12, and IL-18 levels, along with impaired fibrinolysis and hypercoagulability, characterize ED in GD.
  • Serum cytokines may serve as markers for GD activity, supporting early treatment initiation during the subclinical phase.