Atopic dermatitis

Atopic dermatitis is an inflammatory skin disease that causes redness, swelling and itching. It is more common in children, but can develop at any age. It is a chronic disease with periods of exacerbation and remission of variable duration. Sufferers may also have seasonal allergies or asthma.

Atopic dermatitis occurs in people whose skin does not have the ability to provide adequate protection against external agents, usually due to genetic causes. In these people, the skin is affected by various environmental factors, irritants and allergens.

The main risk factor associated with atopic dermatitis is a family or personal history of eczema, allergy, allergic rhinitis or asthma. In genetically predisposed individuals, there are a number of triggers for dermatitis:

  • Stress, which can cause an altered immune response.
  • Allergens, both food and airborne allergens.
  • Skin irritants, clothing made of wool or synthetic fibers, hot water or certain soaps and detergents.
  • Some microorganisms, especially S. aureus, a common colonizer of the skin of people with atopic dermatitis.

Symptoms

Atopic dermatitis usually begins in childhood and may continue into adolescence and adulthood. Signs and symptoms of atopic dermatitis can vary from person to person and include the following:

  • Dry skin.
  • Itching, which can be very intense.
  • Reddish to grayish-brown spots that appear especially on the hands, feet, ankles, ankles, wrists, neck, chest, inner elbows or face.
  • Thickened, cracked and scaly skin.
  • Sensitive and inflamed skin from scratching.

Prevention

The following suggestions may prevent episodes of dermatitis and minimize symptoms should they occur:

  • Use of skin moisturizers at least twice a day.
  • Trying to avoid triggers that worsen the condition such as some foods, sweat, stress, soaps, detergents, etc.
  • Shorter baths or showers, avoiding very hot water.
  • Use of mild soaps.
  • Drying with care, avoiding strong friction.

Number of observed variants

13.5 million variants

Number of risk loci

23 loci

Genes analyzed

ACTL9 ADAD1 CSF2RB ETS1 FASLG FLG IL13 IL18RAP IL22 IL6R LRRC32 OVOL1 PRORP PRR5L RMI2 RPL41 RTEL1-TNFRSF6B SEPTIN8 SPRR2E TNFSF18 TNFSF4 TPD52 TRIB1 ZBTB10 ZNF652

Bibliography

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