Table 1.

Enzyme activity and enrichment factors in the cBBMV from healthy rat colon and DSS-induced colitis rats. Data are presented as mean ± SD, (n = 4). cBBMV, colonic brush border membrane vesicles; DSS, dextran sulfate sodium.

Healthy Rats
	Specific activity (U/mg protein)		Enrichment factor
Enzyme	Homogenate	cBBMV
Alkaline phosphatase	8.08 ± 0.39	36.97 ± 0.26	4.58 ± 0.25 (n = 4)
Gamma-glutamyltransferase	6.37 ± 1.07	25.35 ± 0.13	4.03 ± 0.65 (n = 4)
DSS-induced colitis rats
	Specific activity (U/mg protein)		Enrichment factor
Enzyme	Homogenate	cBBMV
Alkaline phosphatase	12.35 ± 0.12	38.56 ± 0.63	3.12 ± 0.08 (n = 4)
Gamma-glutamyltransferase	1.16 ± 0.23	6.29 ± 0.12	5.54 ± 1.23 (n = 4)