Figure 1. Relative telomere length (RTL) of peripheral blood mononuclear cells (PBMCs) compared to RTL of 9 different solid organs (including liver, skeletal muscle, aorta, large intestine, spleen, kidney, brain, lung, visceral fat) isolated from. (A) young and (B) adult rats. RTL is expressed as ratio of average telomere length to the reference gene GAPDH. *p < 0.05; **p < 0.01; ***p < 0.001 vs. PBMCs RTL.