LED-based UV irradiation safely prevents the loss of bone and muscle mass in mice

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LED-based UV irradiation safely prevents the loss of bone and muscle mass in mice  Science Codex
A research team at Nagoya University in Japan has revealed that narrow-range ultraviolet (UV) irradiation using light emitting diodes (LEDs) safely increases serum vitamin D levels in aging mice and thereby prevents the loss of their bone and muscle mass. The findings were recently published in the journal Scientific Reports.

Decreased bone density (osteoporosis) and the loss of muscle mass and strength (sarcopenia) are age-related disorders. While there are some remedies for osteoporosis, there is no effective treatment for sarcopenia. Recently, a condition called osteosarcopenia -- osteoporosis and sarcopenia together -- which impedes the daily life activities of the sufferer, has also been observed among many elderly people.

Vitamin D is essential for healthy bones and muscles, and its deficiency is a possible cause of osteosarcopenia. Vitamin D can be produced when the skin is exposed to sunlight. However, the availability of sunlight depends on various factors like latitude, season, weather and patient mobility, which makes it difficult to obtain vitamin D consistently from sunlight alone. Indeed,…
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