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Related Concept Videos

Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

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The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
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At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
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Pigmentation01:19

Pigmentation

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The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
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Updated: Jun 24, 2025

In Vivo Investigation of Antimicrobial Blue Light Therapy for Multidrug-resistant Acinetobacter baumannii Burn Infections Using Bioluminescence Imaging
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Blue Light Effects on the Skin: A Post-2015 Update.

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    This summary is machine-generated.

    Blue light exposure sparks debate on its benefits versus harms. While blue light therapy shows dermatologic promise, evidence for necessary photoprotection is lacking, though protective products exist.

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    Area of Science:

    • Dermatology
    • Photobiology

    Background:

    • Increased exposure to blue light has intensified discussions on its health effects.
    • Blue light therapy offers therapeutic benefits for certain skin conditions.
    • Potential adverse effects of blue light exposure are increasingly recognized.

    Purpose of the Study:

    • To review the current understanding of blue light's benefits and harms.
    • To assess the need for blue light photoprotection in dermatology.
    • To evaluate available protective measures against blue light.

    Main Methods:

    • Literature review of studies on blue light therapy and photoprotection.
    • Analysis of evidence regarding dermatologic applications and potential risks.
    • Examination of product efficacy for blue light protection.

    Main Results:

    • Blue light therapy has demonstrated efficacy in treating specific dermatologic conditions.
    • Current scientific evidence does not mandate blue light photoprotection.
    • Products offering protection against blue light have shown proven efficacy.

    Conclusions:

    • The role of blue light in dermatology presents a duality of therapeutic benefits and potential harms.
    • While not currently deemed essential, blue light photoprotection is an option for concerned individuals.
    • Further research may clarify the long-term implications of blue light exposure and protection.