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Koga, T. et al.

Koga, Shimada, Sato, Takahashi, Kikuchi, Okazaki, Miura, Katsuta, Iwata,

Contribution of ferrous iron to maintenance of the gastric colonization of Helicobacter pylori in miniature pigs.

Our previous study showed that the colonization levels of Helicobacter pylori were higher in the stomachs of 5-day-old miniature pigs than in 2-week-old ones. As dietary factors can cause these differences, we compared two diets, i.e., Weanymilk and a similar formula with a higher concentration of Fe(II), Weanylobulin. The colonization levels in the fundic mucosa were significantly higher in 2-week-old pigs fed Weanylobulin than in those fed Weanymilk. Supplementing Weanylobulin with an iron chelator, deferoxamine mesylate, significantly lowered the bacteria counts in the gastric mucosa. Normal diets supplemented with Fe(II) in 2-month-old pigs caused significantly more sites of bacteria in the antrum compared with normal diets alone. In addition, ranitidine, an inhibitor of gastric acid secretion that reduces Fe(III) to Fe(II) in the stomach, decreased the bacteria counts in 10-month-old pigs. These results suggested that Fe(II) maintained the colonization levels of H. pylori in the stomach of the miniature pigs.[1]

References

Contribution of ferrous iron to maintenance of the gastric colonization of Helicobacter pylori in miniature pigs. Koga, T., Shimada, Y., Sato, K., Takahashi, K., Kikuchi, I., Okazaki, Y., Miura, T., Katsuta, M., Iwata, M. Microbiol. Res. (2002) [Pubmed]

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