Absence of Na+/sugar cotransport activity in Barrett’s metaplasia

Table 3 Sodium dependence or independence of AMG uptake by duodenal, gastric fundic, and esophageal mucosal biopsies (mean ± SE)

	Lithium	Sodium
Duodenum	49.31 ± 5.86 (10)b	544.85 ± 110.20 (10)d
Fundus	35.20 ± 2.73 (8)	41.15 ± 1.91 (7)
Esophagus	44.83 ± 4.03 (9)	41.56 ± 5.07 (9)
Barrett’s	40.47 ± 1.47 (5)	48.03 ± 11.72 (5)

The number in parentheses represents the biopsies tested.

^bP < 0.001,

^dP < 0.001 vs all other samples. There was no significant difference between lithium and sodium samples.