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Related Concept Videos

Probiotics01:22

Probiotics

Probiotics are live, non-pathogenic microorganisms that confer health benefits by modulating the gut microbiota. The human gastrointestinal tract harbors a complex microbial ecosystem, and the balance of this microbiota is crucial for digestive and systemic health. Among the most extensively studied and utilized probiotics are species formerly classified within the genera Lactobacillus and Bifidobacterium. These organisms not only naturally colonize the human gut but are also consumed through...
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

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, whereas...

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Related Experiment Video

Updated: Jun 9, 2026

Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ
10:05

Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ

Published on: May 8, 2020

Probiotics for photoprotection.

Audrey Guéniche, David Philippe, Philippe Bastien

    Dermato-Endocrinology
    |September 3, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Probiotic bacteria, including Lactobacillus johnsonii NCC 533 (La1), may help maintain skin health. Supplementation can support skin immune homeostasis and recovery after UV exposure, suggesting a nutritional approach for skin protection.

    Keywords:
    Lactobacillus johnsoniifood supplementimmune homeostasisphotoprotectionprobioticsskinstress

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    Area of Science:

    • Microbiology
    • Immunology
    • Dermatology

    Background:

    • Probiotics influence gut microbiota and immune responses.
    • Evidence suggests probiotics may benefit skin health, particularly atopic dermatitis.
    • Probiotics' potential role in modulating skin immune homeostasis is being explored.

    Purpose of the Study:

    • To investigate the effect of Lactobacillus johnsonii NCC 533 (La1) on cutaneous immune homeostasis after UV exposure.
    • To assess if La1 intake can aid in the recovery of skin immune function following simulated solar UV radiation.

    Main Methods:

    • A randomized, double-blind, placebo-controlled clinical trial was conducted.
    • Participants were exposed to twice 1.5 MED of solar-simulated UV radiation.
    • The allostimulatory function of epidermal cells was measured to assess immune recovery.

    Main Results:

    • Lactobacillus johnsonii NCC 533 (La1) intake facilitated earlier recovery of epidermal cells allostimulatory function post-UV exposure.
    • This suggests La1 can modulate the skin immune system's response to UV damage.

    Conclusions:

    • Certain probiotics, like La1, can contribute to maintaining skin immune homeostasis.
    • Probiotic supplementation may offer a nutritional strategy for preventing UV-induced skin damage.
    • Further research can explore probiotics for preserving skin homeostasis and mitigating UV effects.