Possible association between circulating CTRP3 and knee osteoarthritis in postmenopausal women.

Background: Osteoarthritis (OA) is considered as one of the most common cause of chronic pain and functional disabilities in the elderly.

Aim: To examine serum levels of complement-C1q TNF-related protein 3 (CTRP3) in postmenopausal women with knee OA.

Methods: A population-based cross-sectional study was performed in women who complained of chronic knee pain.