Figure 1From: Sphingosine-1-phosphate attenuates proteoglycan aggrecan expression via production of prostaglandin E2 from human articular chondrocytesRT-PCR analyses for the EDG family receptors of S1P in HAC. Chondrocyte samples were analyzed for the expression of EDG/S1P receptor families. OA: osteoarthritis; RA: rheumatoid arthritis; N: non-arthritic traumatic fracture; numbers and alphabets identify each patient.Back to article page