Researchers Explain Why Vitamin D Is Critical for Muscles
Westmead Institute: vitamin D is critical for muscle tissue — mice lacking its receptor have weaker muscles and more body fat.
Westmead Institute: vitamin D is critical for muscle tissue — mice lacking its receptor have weaker muscles and more body fat.
The Westmead Institute for Medical Research has shed light on the exceptional role of vitamin D in muscle cells. Studies in mice showed that vitamin D signaling activity is necessary for maintaining normal muscle tissue volume and muscle strength.
Mice without the vitamin D receptor in their muscle cells had less developed and weaker muscles. They also ran more slowly, covered shorter distances, and gripped less firmly with their paws. Overall, the animals retained normal body proportions — though they had more fat tissue and less muscle.
According to the scientists, muscle tissue should normally contain a moderate level of vitamin D. This allows muscles to function optimally and maintain their volume. The new discovery will enable the creation of treatment strategies for age-related muscle dystrophy and other conditions by targeting vitamin D receptors.
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