组织胶原含量的改变与许多疾病有关,也与老化关系密切。羟脯氨酸(HP)是胶原蛋白的主要组织成份,测定组织中HP含量能够反映该组织胶原的含量。本实验选用 Changes in tissue collagen content are associated with many diseases and are also closely related to aging. Hydroxyproline (HP) is the main tissue component of collagen. The determination of HP content in tissues can reflect the collagen content of the tissue. This experiment was chosen