food science and gastroinstestinal physiology - 00110

food science and gastroinstestinal physiology - 00110 -...

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The natural history of Helicobacter pylori infection. The horizontal axis shows the time scale in days over 18 months. The left vertical axis is gastritis grade as represented in the columns showing antral and corpus mucosa inflammation graded 0 to 4. The right vertical axis shows the pH of gastric juice on a scale of 0 to 7. Note that corpus mucosa inflammation (hatched vertical bars) subsides after 3 months, whereas antral inflammation remains. As the corpus mucosa returns to near normal, acid secretion revives and gastric pH (dotted line) falls to normal acidic levels.
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Unformatted text preview: Variable early responses are seen in IgA and IgM. IgG is present after the fourth week and remains as the most stable antibody response in nearly all infected persons. Figure 29-5 from Marshall, Barry J., & Robert H. Gilman. Helicobacter pylori infections. Chapter 29 of Guerrant, Richard L., David H. Walker, & Peter F. Weller. Tropical Infectious Diseases: Princi-ples, Pathogens, & Practice. Philadelphia: Churchill Livingstone, 1999, pp. 353–364....
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