List of autoimmune diseases

List of diseases caused by autoimmunity

Autoimmune diseases are a group of disorders characterized by the immune system mistakenly attacking the body's own tissues. This occurs when the immune system fails to distinguish between self and non-self, leading to inflammation and damage to various organs and tissues. Autoimmune diseases can affect almost any part of the body, and their symptoms can vary widely depending on the specific disease and the organs involved.

List of Autoimmune Diseases

The following is a list of some of the most common and well-known autoimmune diseases:

Systemic Autoimmune Diseases

• Systemic lupus erythematosus (SLE): A chronic disease that can affect multiple organs, including the skin, joints, kidneys, and brain. It is characterized by periods of illness, called flares, and periods of remission.
• Rheumatoid arthritis: An inflammatory disorder primarily affecting the joints, leading to pain, swelling, and potential joint destruction.
• Sjögren's syndrome: A condition that primarily affects the glands that produce tears and saliva, leading to dry eyes and mouth.
• Scleroderma: A group of diseases that cause hardening and tightening of the skin and connective tissues.

Organ-Specific Autoimmune Diseases

• Type 1 diabetes: An autoimmune condition where the immune system attacks the insulin-producing beta cells in the pancreas.
• Hashimoto's thyroiditis: An autoimmune disorder affecting the thyroid gland, leading to hypothyroidism.
• Graves' disease: An autoimmune disorder that causes hyperthyroidism, or overactive thyroid.
• Celiac disease: An autoimmune disorder where ingestion of gluten leads to damage in the small intestine.

Neurological Autoimmune Diseases

• Multiple sclerosis: A disease in which the immune system attacks the protective sheath (myelin) that covers nerve fibers, causing communication problems between the brain and the rest of the body.
• Myasthenia gravis: A chronic autoimmune neuromuscular disease that causes weakness in the skeletal muscles.

Gastrointestinal Autoimmune Diseases

• Inflammatory bowel disease (IBD): Includes Crohn's disease and ulcerative colitis, both of which involve chronic inflammation of the gastrointestinal tract.

Skin Autoimmune Diseases

• Psoriasis: A condition in which skin cells build up and form scales and itchy, dry patches.
• Vitiligo: A disease that causes the loss of skin color in blotches.

Pathophysiology

Autoimmune diseases arise from a combination of genetic, environmental, and immunological factors. Genetic predisposition plays a significant role, with certain HLA (human leukocyte antigen) types being associated with increased risk. Environmental triggers such as infections, stress, and exposure to certain chemicals can also contribute to the onset of autoimmune diseases. The exact mechanisms vary between diseases but often involve the production of autoantibodies and autoreactive T cells that target specific tissues.

Diagnosis and Treatment

Diagnosis of autoimmune diseases typically involves a combination of clinical evaluation, laboratory tests, and imaging studies. Common laboratory tests include the detection of specific autoantibodies, such as antinuclear antibodies (ANA) in systemic lupus erythematosus or rheumatoid factor in rheumatoid arthritis.

Treatment strategies aim to reduce immune system activity and manage symptoms. This can include the use of immunosuppressive drugs, corticosteroids, and biologic agents. Lifestyle modifications and supportive therapies, such as physical therapy, may also be beneficial.

Related pages

• Immune system
• Inflammation
• Chronic disease
• Genetic predisposition