Squamometry in acute photodamage.
BACKGROUND
Ultraviolet Irradiation has been shown to elicit alterations in corneocyte adhesion.


OBJECTIVE
To evaluate the early events in the changes of physical properties of the stratum corneum following a single ultraviolet B (UVB) irradiation.


METHODS
Squamometry (Chroma C* of D-Squames) was used in 40 volunteers to assess the variations in stratum corneum cohesion during 3 consecutive days following 1.5 MED UVB irradiation on the forearms.


RESULTS
Subjects with normal or moderately dry skin showed a significant increase in squamometry values during the 24 or 48 h following irradiation. Subjects with severe xerosis showed a progressive decrease in that value over time.


CONCLUSIONS
UV-Squamometry is a convenient, rapid and sensitive method for evaluating the direct effect of UVB radiation on the stratum corneum.
Laboratory of Dermometrology, Department of Dermatopathology, CHU Sart Tilman, B-4000 Liège, Belgium.
G E
GE
Piérard
Laboratory of Dermometrology, Department of Dermatopathology, CHU Sart Tilman, B-4000 Liège, Belgium.
C
C
Piérard-Franchimont
corneocyte; squamometry; ultraviolet light