LCN2 and chronic kidney disease: On the contrary, no significant correlation was found between NGAL and other parameters, such as sex, uric acid (UA), total cholesterol (TC), total triglyceride (TG), or total protein (TP) (P > 0.05); however, the age group of CKD G1 showed statistical difference with the other groups and this may be because of renal aging among the normal elderly population.