Global Expression Profiling in Atopic Eczema Reveals Reciprocal Expression of Inflammatory and Lipid Genes
2008

Genomic Portrait of Eczema

Sample size: 7 publication 10 minutes Evidence: high

Author Information

Author(s): Sääf Annika M., Tengvall-Linder Maria, Chang Howard Y., Adler Adam S., Wahlgren Carl-Fredrik, Scheynius Annika, Nordenskjöld Magnus, Bradley Maria

Primary Institution: Karolinska Institutet, Stockholm, Sweden

Hypothesis

What are the specific genes involved in the pathogenesis of atopic eczema?

Conclusion

The study identified a distinct reciprocal expression pattern of inflammatory genes and lipid metabolism genes in the skin of atopic eczema patients.

Supporting Evidence

  • Atopic eczema affects 10-20% of children and 1-3% of adults in westernized countries.
  • Activated immune cells are often found in the skin of patients with atopic eczema.
  • Genes involved in lipid metabolism were found to be down-regulated in eczema skin.

Takeaway

This study looked at skin samples from people with eczema and found that their skin had more genes related to inflammation and fewer genes related to fat metabolism compared to healthy skin.

Methodology

Human DNA microarrays were used to analyze skin biopsy samples from atopic eczema patients and healthy individuals.

Participant Demographics

7 patients with atopic eczema, ages 21 to 43, with varying levels of asthma and allergic symptoms.

Statistical Information

P-Value

p<0.003

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0004017

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