The cartilage in joints is uniquely susceptible to glycation, since cartilage cells are extremely long-lived and are incapable of reproducing. Once damaged, they do not recover. The very same cartilage cells residing in your knee at age twenty-five will (we hope) be there when you are eighty; therefore, these cells are susceptible to all the biochemical ups and downs of your life, including your blood sugar adventures. If cartilage proteins, such as collagen and aggrecan, become glycated, they become abnormally stiff. The damage of glycation is cumulative, making cartilage brittle and
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