H pylori infection causes chronic pancreatitis in Mongolian gerbils

Table 1 Histopathological findings of H pylori infected and non-infected Mongolian Gerbils [(n/n)%]

Parameter	Non-inf.	B128	B128ΔcagY
No. of animals (n)	7	10	9
Reisolation rate	(0/7) 0	(9/10) 90	(9/9) 100
Lymphaggregate	(0/7) 0	(9/9) 100	(7/9) 78
Gastric ulcer	(0/7) 0	(8/9) 89	(3/9) 33
Metaplastic changes	(0/7) 0	(9/9) 100	(7/9) 78
Transmural inflammation and pancreatitis1	(0/7) 0	(5/9) 56	(3/9) 33

¹No statistical difference was observed in the induction of transmural inflammation and pancreatitis of H pylori B128 WT and mutant B128 ΔcagY strain infected gerbils, respectively.