This is mostly caused by tires that are overinflated. When a tire is overinflated, the tire, in essence, bulges out more in the center. The tire then rides mostly on that bulge and that bulge wears faster than the sides of the tire. Keeping your tires properly inflated can help you to avoid center wear.
Lysozyme is abundant in a number of secretions, such as tears, saliva, human milk, and mucus. It is also present in cytoplasmic granules of the macrophages and the polymorphonuclear neutrophils (PMNs). Large amounts of lysozyme can be found in egg white.
1 Saliva is a fluid secreted by the salivary glands. 2  It moistens and lubricates and has an optimum pH of 6.5-7.5. 3  Lysozyme is an enzyme secreted by the salivary glands. 4  It kills bacteria. 5  Mucus is a fluid secreted by the foveolar cells in the stomach.ther Secretions. 1  Saliva is a fluid secreted by the salivary glands. 2  It moistens and lubricates and has an optimum pH of 6.5-7.5. 3  Lysozyme is an enzyme secreted by the salivary glands. 4  It kills bacteria. 5  Mucus is a fluid secreted by the foveolar cells in the stomach. 6  It protects the stomach wall.