Metabolism refers to all of the chemical processes that take place in
the body, such as the burning of natural sugar substances (such as glucose) in
the body for energy. The endocrine system controls the body's hormones, such as
estrogen.
It is possible that more rapid breakdown of cartilage in joints is
partly due to a metabolic problem. In osteoarthritis, cartilage breakdown
occurs more rapidly than cartilage repair.
Examples of metabolic and endocrine conditions that can lead to
osteoarthritis are:
- Hemochromatosis (abnormally high levels of iron
in the blood and tissues).
- Wilson's disease (abnormally high levels
of copper in the body).
- Acromegaly (a disease characterized by
long, large bones in the extremities and parts of the head and jawbones due to
excessive growth hormone).
- Hyperparathyroidism (abnormally high
levels of parathyroid hormone, the hormone that regulates calcium levels in the
bones and blood).