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Collagen disease is a term previously used to describe systemic autoimmune diseases (e.g., rheumatoid arthritis, systemic lupus erythematosus, and systemic sclerosis), but now is thought to be more appropriate for diseases associated with defects in collagen, which is a component of the connective tissue.
Type II collagen is the basis for hyaline cartilage, including the articular cartilages at joint surfaces. It is formed by homotrimers of collagen, type II, alpha 1 chains. It makes up 50% of all protein in cartilage and 85–90% of collagen of articular cartilage.
Osteoarthritis (OA) is a type of degenerative joint disease that results from breakdown of joint cartilage and underlying bone. [5] [6] It is believed to be the fourth leading cause of disability in the world, affecting 1 in 7 adults in the United States alone. [7]
Arthritis is an extremely common—and often quite painful—health condition. According to the Arthritis Foundation, it is the leading cause of disability in the United States.While there are a ...
It may also cause blood vessels to constrict and reduce blood flow. Due to this, perioral collagen (connective tissue around the mouth below the skin) may show signs of damage. When collagen is lost in large amounts, it may cause wrinkles to emerge. Tobacco use can also result in slow collagen healing. [12]
Inflammatory arthritis can sometimes cause symptoms in parts of the body other than the joints, like the eyes, heart, or lungs. As arthritis progresses, joint damage can get worse.
The clinical features of the type II and XI collagenopathies vary among the disorders, but there is considerable overlap. Common signs and symptoms include problems with bone development that can result in short stature, enlarged joints, spinal curvature, and arthritis at a young age. For some people, bone changes can be seen only on X-ray images
Osteoarthritis is often the cause of knee pain, especially for women and older adults, according to the Arthritis Foundation. But sore knees may also result from an injury, weak or tight muscles ...