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Related Concept Videos

Autoimmune Disorders01:29

Autoimmune Disorders

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.
Concept and Mechanism of Autoimmune Diseases
The immune system...
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...
Gastritis-II: Pathophysiology01:17

Gastritis-II: Pathophysiology

Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
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...
Type I Diabetes I: Introduction01:12

Type I Diabetes I: Introduction

Type 1 diabetes mellitus is a chronic metabolic disorder characterized by an absolute deficiency of insulin resulting from the autoimmune destruction of pancreatic β-cells. Although it can occur at any age, it is most commonly diagnosed in childhood, adolescence, or early adulthood. The loss of insulin production impairs cellular glucose uptake, resulting in persistent hyperglycemia and necessitating lifelong insulin therapy.Autoimmune Destruction of β-CellsThe hallmark of type 1 diabetes is an...

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Related Experiment Video

Updated: May 30, 2026

A High-Throughput Electrochemiluminescence 7-Plex Assay Simultaneously Screening for Type 1 Diabetes and Multiple Autoimmune Diseases
06:50

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Published on: May 29, 2020

[Laboratory abnormalities and autoantibodies].

Ignacio García-De La Torre1, Ignacio García-Valladares

  • 1Departamento de Inmunología y Reumatología, Hospital General de Occidente de la Secretaría de Salud, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México. igdlt@aim.com

Reumatologia Clinica
|July 29, 2011
PubMed
Summary
This summary is machine-generated.

Laboratory tests aid in diagnosing inflammatory myopathies (IIM) by measuring muscle enzymes and detecting autoantibodies. Key markers include creatine kinase, antinuclear antibodies, myositis specific antibodies (MSA) like anti-Jo-1 and anti-Mi-2.

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Last Updated: May 30, 2026

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Generation of Two-color Antigen Microarrays for the Simultaneous Detection of IgG and IgM Autoantibodies
10:16

Generation of Two-color Antigen Microarrays for the Simultaneous Detection of IgG and IgM Autoantibodies

Published on: September 15, 2016

Area of Science:

  • Immunology
  • Biochemistry
  • Rheumatology

Context:

  • Inflammatory myopathies (IIM) are autoimmune diseases characterized by muscle inflammation.
  • Accurate diagnosis relies on specific laboratory investigations.
  • Distinguishing between IIM subtypes is crucial for targeted treatment.

Purpose:

  • To outline the key laboratory tests utilized in the diagnosis of inflammatory myopathies.
  • To categorize these tests into muscle enzyme quantification and autoantibody detection.
  • To highlight the significance of specific biomarkers in IIM subtyping.

Summary:

  • Laboratory tests for IIM are broadly categorized into muscle enzyme analysis and autoantibody detection.
  • Elevated muscle enzymes like creatine kinase indicate muscle inflammation.
  • Autoantibodies, particularly antinuclear antibodies (ANA), are vital for classifying IIM, with myositis-specific antibodies (MSA) such as anti-Jo-1 and anti-Mi-2 identifying Polymyositis and Dermatomyositis, respectively.

Impact:

  • Improved diagnostic accuracy for inflammatory myopathies.
  • Facilitation of precise subtyping of IIM based on biomarker profiles.
  • Guidance for clinicians in selecting appropriate diagnostic and therapeutic strategies for IIM patients.