It can be a contributing factor. as can be osteoporosis.
You can have it with or without any factor.
Yes
Yes You can have Rheumatoid arthritis with no RF at all. In that case it is referred to as seronegative RA,
Yes, as a matter of fact you can have RA with no rheumatoid factor at all.
The exact cause of arthritis is still not known. And while exercise is helpful in dealing with the effects of arthritis. A lack of it is not held responsible for the development of arthritis.
Arthritis as such is not a terminal disease. However arthritis especially rheumatoid arthritis which is an immune system disease can lead to the development of other diseases that may be capable of killing you or the treatments used for various forms of arthritis can lead to death. However no one actually dies of arthritis.
Seropositive Rheumatoid arthritis is RA in a person that has rheumatoid factor in the blood. As opposed to seronegative RA where there is no RF.Rheumatoid arthritis is an autoimmune disease that exhibits itself in a certain way when it is suspected that one has RA ones blood is tested for Rheumatoid factor (a particular antibody) if it is found to be elevated then one is said to have seropositive RA.
People that have rheumatoid arthritis often also have a high RF However not always. There are also many people with a high rheumatoid factor that never develop rheumatoid arthritis, so unless the person is showing the symptoms of RA it should have no effect.
Yes, fish can develop arthritis. Arthritis in fish usually occurs in the joints, causing inflammation and discomfort. Factors such as injury, infection, or genetics can contribute to the development of arthritis in fish.
You may have RA even though you don't have rheumatoid factor. In this case it is referred to as seronegative rheumatoid arthritis.
Yes It is likely that you have a positive RA factor if you have RA However it is not necessary to have a positive RA factor if you have RA the relationship between RA factor and ra is not understood and some people with RA never have an RA factor. These situations are known as sero-negative Rheumatoid arthritis.