TABLE 3.

Redox Values in Epithelia and Plasma after 7 Days of Exposure to SDD

SDD (mg/l)	GSH (nmol/mg)		GSSG (nmol/mg)		GSH/GSSG		ΔE (mV)a
	Average	SEM	Average	SEM	Average	SEM	Average	SEM
Oral mucosa
0	43.23	2.47	4.40	0.22	9.92	0.73	−206.97	1.62
0.3	45.12	5.07	5.12	0.52	8.82	0.60	−205.68	2.35
4	44.75	1.84	4.53	0.25	9.97	0.56	−207.60	1.12
14	47.02	5.41	5.37	0.62	8.77	0.38	−206.24	1.87
60	43.17	5.13	4.90	0.56	8.79	0.15	−205.06	2.06
170	46.34	5.63	5.67	0.80	8.26b	0.19	−205.29	1.35
520	46.38	4.57	5.88b	0.46	7.88c	0.32	−204.78	1.59
Duodenum
0	16.77	1.26	0.24	0.03	71.33	5.15	−220.58	1.36
0.3	17.57	1.25	0.30	0.03	59.99	6.85	−218.77	2.03
4	16.99	0.73	0.30	0.01	57.33	0.49	−218.11	0.56
14	16.75	0.94	0.31	0.01	53.41	2.69	−216.86	1.44
60	17.61	1.08	0.36b	0.01	48.47b	2.00	−216.24	1.36
170	18.92	1.49	0.43c	0.01	44.28c	2.72	−215.89 b	1.77
520	19.98	1.32	0.48c	0.02	41.23c	1.86	−215.75b	1.37
Jejunum
0	15.30	0.74	0.34	0.02	45.29	2.11	−213.49	1.08
0.3	14.14	0.95	0.37	0.01	38.43	1.68	−210.20	1.39
4	13.63	0.48	0.33	0.02	41.12	1.66	−210.70	0.58
14	12.09	0.36	0.36	0.02	34.51d	2.30	−206.68	1.05
60	14.25	0.99	0.32	0.01	45.51	5.25	−212.28	2.29
170	11.47c	0.23	0.29	0.01	40.37	1.86	−208.15c	0.71
520	12.79b	0.45	0.33	0.01	38.72	1.54	−209.05b	0.98
Plasma	GSH (μM)		GSSG (μM)
0	25.45	0.74	3.59	0.35	7.34	0.65	−137.40	1.26
0.3	24.86	0.55	4.18	0.27	6.05	0.46	−134.59	1.17
4	27.69	1.53	4.20	0.33	6.84	0.92	−137.35	2.17
14	26.91	1.45	4.04	0.32	6.92	0.83	−137.10	2.44
60	32.45c	1.37	4.18	0.23	7.93	0.81	−141.62	1.80
170	30.41b	1.09	4.85b	0.23	6.35	0.45	−137.90	1.46
520	31.46b	1.82	5.07c	0.23	6.28	0.53	−138.12	1.84

^aSee “MATERIALS AND METHODS” for calculation.

^bStatistically significant from control by Shirley’s tests (p < 0.05).

^cStatistically significant from control by Shirley’s tests (p < 0.01).

^dStatistically significant from control by Dunn’s tests (p < 0.01).