TABLE 1.

PAF acetylhydrolase and transacetylase activities in aortic and mammary arteries

	AH Activity	AH Activity plus Pefablok	TA Activity	TA Activity plus Pefablok
	pmol/min/mg tissue
Aorta	2.8 ± 0.5	0.3 ± 0.1	3.3 ± 0.7	0.5 ± 0.3
Mammary artery	1.4 ± 0.3a	0.1 ± 0.1	0.8 ± 0.2b	0.2 ± 0.1

AH, acetylhydrolase; PAF, platelet-activating factor; TA, transacetylase. Results are given as mean ± SE (n = 38).

^aP < 0.004 as compared with AH of aorta.

^bP < 0.03 as compared with AH of mammary artery, t-test for dependent samples.