Expression of AdipoR1 and AdipoR2 was observed in rat IVD cells: with a mean percentage of AdipoR1 and AdipoR2 at 79.6 ± 9.8% and 69.2 ± 15.8% in NP cells and 63.2 ± 17.5% and 66.2 ± 14.1% in AF cells, respectively. The gene discussed is ADIPOR1; the disease is atrial fibrillation.