Table 1.

Expression of retinol binding protein 4 (RBP4) and adipokines adipsin, adiponectin, leptin and resistin, as well as receptors activated by RBP4 in the OA chondrocytes as measured by RNA-Seq

Gene name	Expression	SEM
Adipokines
Retinol binding protein 4	472.5	75.9
Adipsin	4.4	1.6
Adiponectin	0.8	0.5
Leptin	0.8	0.8
Resistin	< 0.1	< 0.1
Receptors activated by RBP4
Stimulated by retinoic acid gene homologue 6	4.9	37.7
Toll-like receptor 4	234.1	1.9

The primary chondrocytes were isolated from knee cartilages of the OA patients (n = 10) undergoing knee replacement surgery and cultured for 24 h. Expression levels of genes are given as mean and SEM of DESeq2-normalized counts