TABLE 1.

Numbers of mast cells in ear skin, back skin, peritoneum wall, and small intestine

Numbers of mast cells per ten randomly selected high power fields were determined under light microscopy. Results are the mean values ± S.E. for four mice/group. WT, wild type; KO, knockout.

Tissue	WT	KO
Ear skin	112 ± 11.7	109 ± 3.2
Back skin	29.7 ± 23	41.3 ± 13
Peritoneum wall	9.3 ± 5.0	10 ± 2
Small intestine	5.3 ± 3.3	6 ± 3.0