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Volume 7 Issue 8(Suppl) J Clin Exp Dermatol Res
ISSN: 2155-9554 JCEDR, an open access journal
Page 30
Dermatology Conference 2016
November 28-29, 2016
conferenceseries.com
November 28-29, 2016 Melbourne, Australia
10th Asia-Pacific Dermatology Conference
Yohei Tanaka, J Clin Exp Dermatol Res 2016, 7:8(Suppl)
The necessity of solar near-infrared protection
Over half of the solar energy consists of near-infrared and intensive or long-term solar near-infrared exposure induces
photoaging. Despite the wide prevalence of a variety of ultraviolet blocking materials, such as sunscreen, sunglasses,
glasses, films, umbrellas and fibers that are useful in protecting the skin against ultraviolet exposure, solar near-infrared cannot
be blocked and the necessity to protect against solar near-infrared has not been well recognized. Solar near-infrared can
penetrate the skin and the sclera and affect the deeper tissues, including muscles, lens and retina with its high permeability.
I have elucidated that solar near-infrared can induce various biological effects. Continual long-term exposure to solar near-
infrared performs as an aging factor. Consequently, solar near-infrared can induce various kinds of tissue damage and diseases
such as undesirable photoaging, long-lasting vasodilation, long-lasting muscle thinning, sagging and skin ptosis and potentially
photocarcinogenesis, when biological solar near-infrared protection is not achieved. To clarify the necessity to protect against
near-infrared, I assessed cell viability of human fibroblast cells after near-infrared treatment using 2 sets of transparent
polycarbonate plates, one to block ultraviolet and the other to block both ultraviolet and near-infrared. The cell viability was
significantly decreased after near-infrared irradiation in near-infrared treated cells without a protective polycarbonate plate
and near-infrared treated cells using the polycarbonate plate that only blocked ultraviolet, whereas both ultraviolet and near-
infrared protected cells were not damaged. Therefore, I believe that protection from not only ultraviolet but also near-infrared
should be considered to prevent tissue damage.
Biography
Yohei Tanaka is one of the leading Plastic Surgeons in Japan. He directs his clinic, Society for Near-infrared Rays Research and International Photobiological
Society. He conducts many researches as a Visiting Professor of Niigata University of Pharmacy and Applied Life Sciences and Lecturer of Tokyo Women’s Medical
University. He has published over 20 peer-reviewed papers in English and has edited 2 international open access books regarding near-infrared. His goal is to
discover the most effective near-infrared wavelengths for rejuvenation and anti-cancer therapy and to further study solar near-infrared and how best we can protect
ourselves against its photoaging.
Yohei Tanaka
Clinica Tanaka Plastic, Reconstructive Surgery and Anti-aging Center, Japan