The skeletal muscle regeneration occurs differently from other body tissue repair process. This is so, because the nuclei in skeletal muscle fibers cannot divide. Instead muscle regeneration, or repair, is carried out through myosatellite cells; these are muscle stem cells, the precursor of skeletal muscle. They are small uninuclear (one nucleus) cells enclosed in the membrane of skeletal muscle fibers.
When a muscle is injured, or stimulated to grow by repeated strenuous exercise, myosatellite cells divide, producing new cells which replace the damaged cells. If strenuous exercise continues, one daughter cell from satellite cell mitosis fuses with existing muscle fibers, achieving repair or causing a hypertrophic increase in muscle mass, as when people work out or do sports. The other daughter cells remain stem cells.
To foster, or nurture, skeletal muscle cell regeneration, it is important to eat food that contains the twelve essential amino acids, such as lysine, histidine, leucine, and methionine, among others, and essential minerals, such as zinc. Animal food, such as meat, egg, and cheese, are the only types of food which contain proteins with the twelve essential amino acids. Cholesterol is also important for the production of testosterone, which is important in muscle building. Eggs have plenty of cholesterol, as well as proteins, vitamin B12, A retinol, D, and E.
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