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Related Experiment Videos

[Infrared erythema].

H J Schulze, R Schmidt, G Mahrle

    Zeitschrift Fur Hautkrankheiten
    |June 15, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Infra-red (IR) irradiation causes immediate skin redness (erythema) with a unique pattern, unlike UV rays. This IR-induced erythema requires much higher doses than UVB and resolves within hours, involving dilated blood vessels and mast cells.

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    [In honor of Professor Dr. Dr. h.c. G. K. Steigleder on the occasion of his 90th birthday].

    Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete·2015

    Area of Science:

    • Dermatology
    • Photobiology
    • Histopathology

    Context:

    • Understanding the immediate effects of infra-red (IR) radiation on human skin.
    • Comparing the cutaneous response to IR versus ultraviolet (UV) radiation.
    • Investigating the dose-response relationship and temporal characteristics of IR-induced erythema.

    Purpose:

    • To characterize the immediate cutaneous effects of infra-red irradiation on human skin.
    • To compare the erythema response to IR with that induced by polychromatic UV rays.
    • To elucidate the histological changes associated with IR-induced skin reactions.

    Summary:

    • Infra-red (IR) irradiation elicits an immediate, monophasic erythema in human skin, distinct from UV-induced responses.
    • The minimal erythema dose (MED) for IR is approximately 15,000 times higher than for UVB, with erythema appearing rapidly and fading within 1-4 hours.

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  • Histological examination reveals vascular dilation and perivascular degranulation of mast cells as key features of the IR erythema.

    • Impact:

    • Provides crucial insights into the immediate dermatological effects of infra-red radiation.
    • Highlights the significant differences in skin response between IR and UV wavelengths.
    • Contributes to a better understanding of the mechanisms underlying IR-induced skin inflammation and vascular changes.