Table 1.

Clinical information and immunohistochemical results with cell counts in human subjects

				% of positivity in CD117+ cells			% of CD45 intensity of tryptase+ cells
Case	Gender	Age	Cause of death	Tryptase	Toluidine blue	Thionine	Moderate	Weak	Negative
5752	Male	7 days	ARDSb	90	100	89.6	4	94.8	1.2
5855	Male	6 years	Unknown	98.1	95.4	87.3	3.8	93.2	3
4911	Female	28 years	Amnionic fluid embolism	100	97.8	97.1	6.6	91.2	2.2
5856	Male	45 years	Acute pancreatitis	95.7	91.4	97.1	4.5	93	2.5
5804	Female	75 years	ARDS	100	100	85	6.4	92.3	1.3

500–1000 CD117⁺ and 200–250 tryptase⁺ cells were counted in five sections of the left ventricle of each human heart (n=5 cases), and these sections were of similar sizes. No mast cells with strong CD45 signals were found. ARDS, acute respiratory distress syndrome.