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Related Experiment Videos

'Dry' skin in atopic dermatitis. II. A surface profilometry study.

Y W Linde1, A Bengtsson, M Lodén

  • 1Department of Dermatology, Södersjukhuset Stockholm, Sweden.

Acta Dermato-Venereologica
|January 1, 1989
PubMed
Summary
This summary is machine-generated.

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Dry atopic dermatitis skin exhibits increased surface roughness and fewer peaks compared to normal skin. Quantitative analysis confirms visual observations of altered skin topography in non-eczematous areas.

Area of Science:

  • Dermatology
  • Biophysics
  • Surface Science

Background:

  • Atopic dermatitis (AD) often presents with 'dry' skin in non-eczematous areas.
  • This dryness is associated with a rough tactile sensation and altered skin surface texture visible under scanning electron microscopy (SEM).

Purpose of the Study:

  • To quantitatively assess and compare the skin surface topography of normal skin and 'dry' atopic skin.
  • To correlate objective topographical measurements with the visual characteristics of AD skin.

Main Methods:

  • Utilized profilometry to quantitatively record skin surface topography.
  • Created computer-based 3D reconstructions of skin surfaces from replicas.
  • Calculated standard roughness parameters (Ra, Rq, Rmax, Rn) and shape descriptors (skewness, kurtosis, delta a).

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Main Results:

  • 'Dry' atopic skin showed significantly increased roughness parameters (Ra, Rq, Rmax).
  • A significant decrease in the number of peaks (Rn) was observed in atopic skin.
  • Skin surface shape parameters (skewness, kurtosis, delta a) did not differ significantly between groups.

Conclusions:

  • Quantitative topographical data support the visual assessment of altered skin surface patterns in 'dry' atopic skin.
  • Increased roughness and reduced peak density are key topographical features of non-eczematous AD skin.