1 At the ends of each of our chromosomes are sections of DNA called telomeres. 2  Telomeres protect the ends of the chromosomes during DNA replication by forming a cap, much like the plastic tip on a shoelace.
Osteoarthritis (OA) is the most common type of finger arthritis. OA is also called degenerative joint disease because it is caused by wear and tear on your joints as you age. In OA, the protective tissues in your joints deteriorate with time allowing bare bone to rub on bone. This cause joint pain and swelling.
The MCP joints of the fingers may actually begin to point sideways (towards the little finger). This is called ulnar drift. Ulnar drift can cause weakness and pain, making it difficult to use your hand for daily activities. Both rheumatoid arthritis and osteoarthritis can affect the IP joints of the fingers. The IP joints may begin to flex (bend) or hyperextend (over straighten), causing characteristic finger deformities.