The serum level of adiponectin was 17.0 (11.3–24.9) μg/mL, which was approximately 3-fold higher than the reported value of 5.4 ± 2.3 μg/mL in male subjects without CKD, whereas the serum levels of leptin did not differ from those in subjects without CKD8. Here, ADIPOQ is linked to chronic kidney disease.