Figure 4From: Leptin deficiency-induced obesity affects the density of mast cells in abdominal fat depots and lymph nodes in miceMast cells in abdominal lymph nodes. The density of mast cells in retroperitoneal, mesenteric, and inguinal lymph nodes (LN) from control (+/?, n = 10, white bars) and ob/ob (n = 10, black bars) mice is shown (A-H). Note the differential distribution of mast cells in abdominal lymph nodes in both control and ob/ob mice (A, E). Leptin deficiency-induced obesity was accompanied by an increase in the density of mast cells in abdominal lymph nodes (I-K). Photomicrograhs demonstrate mast cells (arrows) stained for chloroacetate esterase. Scale bars are 50 μm. * P < 0.05, *** P < 0.001.Back to article page