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IS UV SENSITIVITY
ALSO DETERMINED BY FACTORS OTHER THAN PIGMENTATION?
van der Leun, Jan1
University Medical Center, Utrecht1
Abstract-
UV sensitivity, the readiness of the skin to develop erythema and sunburn,
varies greatly among people. Photosensitive patients with minimal erythema
doses far below normal may have skins with or without pigmentation.
The vascular reactivity to UV exposure is likely to be different also
in persons with normal skin reactions. Another clearly important factor
is the thickness of the epidermal layers. It governs the adaptation
of the skin to increasing exposures to UV radiation. This, again, applies
to skins with and without pigmentation. The two factors mentioned may
well be more important than pigmentation in determining the UV sensitivity
of the skin.
Keywords: UV sensitivity
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